diff --git a/docs/development/creating-api.md b/docs/development/creating-api.md
index 836a2f9601e..6b6527c66c4 100644
--- a/docs/development/creating-api.md
+++ b/docs/development/creating-api.md
@@ -50,8 +50,8 @@ In your `api_name.h` file:
 
 ```cpp title='api_name.h'
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_{API_NAME}_H_
-#define SHELL_BROWSER_API_ELECTRON_API_{API_NAME}_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_{API_NAME}_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_{API_NAME}_H_
 
 #include "gin/handle.h"
 #include "gin/wrappable.h"
diff --git a/script/lint.js b/script/lint.js
index b6bb2bd1572..a66423bb0f3 100755
--- a/script/lint.js
+++ b/script/lint.js
@@ -9,8 +9,9 @@ const klaw = require('klaw');
 const minimist = require('minimist');
 const path = require('path');
 
-const SOURCE_ROOT = path.normalize(path.dirname(__dirname));
-const DEPOT_TOOLS = path.resolve(SOURCE_ROOT, '..', 'third_party', 'depot_tools');
+const ELECTRON_ROOT = path.normalize(path.dirname(__dirname));
+const SOURCE_ROOT = path.resolve(ELECTRON_ROOT, '..');
+const DEPOT_TOOLS = path.resolve(SOURCE_ROOT, 'third_party', 'depot_tools');
 
 const IGNORELIST = new Set([
   ['shell', 'browser', 'resources', 'win', 'resource.h'],
@@ -19,7 +20,7 @@ const IGNORELIST = new Set([
   ['spec', 'ts-smoke', 'electron', 'main.ts'],
   ['spec', 'ts-smoke', 'electron', 'renderer.ts'],
   ['spec', 'ts-smoke', 'runner.js']
-].map(tokens => path.join(SOURCE_ROOT, ...tokens)));
+].map(tokens => path.join(ELECTRON_ROOT, ...tokens)));
 
 const IS_WINDOWS = process.platform === 'win32';
 
@@ -101,7 +102,7 @@ const LINTERS = [{
   run: (opts, filenames) => {
     const rcfile = path.join(DEPOT_TOOLS, 'pylintrc');
     const args = ['--rcfile=' + rcfile, ...filenames];
-    const env = Object.assign({ PYTHONPATH: path.join(SOURCE_ROOT, 'script') }, process.env);
+    const env = Object.assign({ PYTHONPATH: path.join(ELECTRON_ROOT, 'script') }, process.env);
     spawnAndCheckExitCode('pylint', args, { env });
   }
 }, {
@@ -142,7 +143,7 @@ const LINTERS = [{
   run: (opts, filenames) => {
     const allOk = filenames.map(filename => {
       const env = Object.assign({
-        CHROMIUM_BUILDTOOLS_PATH: path.resolve(SOURCE_ROOT, '..', 'buildtools'),
+        CHROMIUM_BUILDTOOLS_PATH: path.resolve(ELECTRON_ROOT, '..', 'buildtools'),
         DEPOT_TOOLS_WIN_TOOLCHAIN: '0'
       }, process.env);
       // Users may not have depot_tools in PATH.
@@ -277,7 +278,7 @@ async function findFiles (args, linter) {
 
   // build the includelist
   if (args.changed) {
-    includelist = await findChangedFiles(SOURCE_ROOT);
+    includelist = await findChangedFiles(ELECTRON_ROOT);
     if (!includelist.size) {
       return [];
     }
@@ -287,12 +288,12 @@ async function findFiles (args, linter) {
 
   // accumulate the raw list of files
   for (const root of linter.roots) {
-    const files = await findMatchingFiles(path.join(SOURCE_ROOT, root), linter.test);
+    const files = await findMatchingFiles(path.join(ELECTRON_ROOT, root), linter.test);
     filenames.push(...files);
   }
 
   for (const ignoreRoot of (linter.ignoreRoots) || []) {
-    const ignorePath = path.join(SOURCE_ROOT, ignoreRoot);
+    const ignorePath = path.join(ELECTRON_ROOT, ignoreRoot);
     if (!fs.existsSync(ignorePath)) continue;
 
     const ignoreFiles = new Set(await findMatchingFiles(ignorePath, linter.test));
@@ -310,7 +311,7 @@ async function findFiles (args, linter) {
   // it's important that filenames be relative otherwise clang-format will
   // produce patches with absolute paths in them, which `git apply` will refuse
   // to apply.
-  return filenames.map(x => path.relative(SOURCE_ROOT, x));
+  return filenames.map(x => path.relative(ELECTRON_ROOT, x));
 }
 
 async function main () {
diff --git a/shell/app/command_line_args.h b/shell/app/command_line_args.h
index 913176c6d31..70e1e6b0579 100644
--- a/shell/app/command_line_args.h
+++ b/shell/app/command_line_args.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_APP_COMMAND_LINE_ARGS_H_
-#define SHELL_APP_COMMAND_LINE_ARGS_H_
+#ifndef ELECTRON_SHELL_APP_COMMAND_LINE_ARGS_H_
+#define ELECTRON_SHELL_APP_COMMAND_LINE_ARGS_H_
 
 #include "base/command_line.h"
 
@@ -14,4 +14,4 @@ bool IsSandboxEnabled(base::CommandLine* command_line);
 
 }  // namespace electron
 
-#endif  // SHELL_APP_COMMAND_LINE_ARGS_H_
+#endif  // ELECTRON_SHELL_APP_COMMAND_LINE_ARGS_H_
diff --git a/shell/app/electron_content_client.h b/shell/app/electron_content_client.h
index 0a4df8c439a..3caefdbafec 100644
--- a/shell/app/electron_content_client.h
+++ b/shell/app/electron_content_client.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_APP_ELECTRON_CONTENT_CLIENT_H_
-#define SHELL_APP_ELECTRON_CONTENT_CLIENT_H_
+#ifndef ELECTRON_SHELL_APP_ELECTRON_CONTENT_CLIENT_H_
+#define ELECTRON_SHELL_APP_ELECTRON_CONTENT_CLIENT_H_
 
 #include <vector>
 
@@ -38,4 +38,4 @@ class ElectronContentClient : public content::ContentClient {
 
 }  // namespace electron
 
-#endif  // SHELL_APP_ELECTRON_CONTENT_CLIENT_H_
+#endif  // ELECTRON_SHELL_APP_ELECTRON_CONTENT_CLIENT_H_
diff --git a/shell/app/electron_crash_reporter_client.h b/shell/app/electron_crash_reporter_client.h
index 3b074f139dc..bfe039e6a19 100644
--- a/shell/app/electron_crash_reporter_client.h
+++ b/shell/app/electron_crash_reporter_client.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_APP_ELECTRON_CRASH_REPORTER_CLIENT_H_
-#define SHELL_APP_ELECTRON_CRASH_REPORTER_CLIENT_H_
+#ifndef ELECTRON_SHELL_APP_ELECTRON_CRASH_REPORTER_CLIENT_H_
+#define ELECTRON_SHELL_APP_ELECTRON_CRASH_REPORTER_CLIENT_H_
 
 #include <map>
 #include <string>
@@ -91,4 +91,4 @@ class ElectronCrashReporterClient : public crash_reporter::CrashReporterClient {
   ~ElectronCrashReporterClient() override;
 };
 
-#endif  // SHELL_APP_ELECTRON_CRASH_REPORTER_CLIENT_H_
+#endif  // ELECTRON_SHELL_APP_ELECTRON_CRASH_REPORTER_CLIENT_H_
diff --git a/shell/app/electron_library_main.h b/shell/app/electron_library_main.h
index 94734286793..d847ee074eb 100644
--- a/shell/app/electron_library_main.h
+++ b/shell/app/electron_library_main.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_APP_ELECTRON_LIBRARY_MAIN_H_
-#define SHELL_APP_ELECTRON_LIBRARY_MAIN_H_
+#ifndef ELECTRON_SHELL_APP_ELECTRON_LIBRARY_MAIN_H_
+#define ELECTRON_SHELL_APP_ELECTRON_LIBRARY_MAIN_H_
 
 #include "build/build_config.h"
 #include "electron/buildflags/buildflags.h"
@@ -20,4 +20,4 @@ __attribute__((visibility("default"))) int ElectronInitializeICUandStartNode(
 }
 #endif  // OS_MAC
 
-#endif  // SHELL_APP_ELECTRON_LIBRARY_MAIN_H_
+#endif  // ELECTRON_SHELL_APP_ELECTRON_LIBRARY_MAIN_H_
diff --git a/shell/app/electron_main.h b/shell/app/electron_main.h
index b49e5576e95..aa75d6faadf 100644
--- a/shell/app/electron_main.h
+++ b/shell/app/electron_main.h
@@ -2,9 +2,9 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_APP_ELECTRON_MAIN_H_
-#define SHELL_APP_ELECTRON_MAIN_H_
+#ifndef ELECTRON_SHELL_APP_ELECTRON_MAIN_H_
+#define ELECTRON_SHELL_APP_ELECTRON_MAIN_H_
 
 #include "content/public/app/content_main.h"
 
-#endif  // SHELL_APP_ELECTRON_MAIN_H_
+#endif  // ELECTRON_SHELL_APP_ELECTRON_MAIN_H_
diff --git a/shell/app/electron_main_delegate.h b/shell/app/electron_main_delegate.h
index 7818acf5e0c..ff7f5e923b7 100644
--- a/shell/app/electron_main_delegate.h
+++ b/shell/app/electron_main_delegate.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_APP_ELECTRON_MAIN_DELEGATE_H_
-#define SHELL_APP_ELECTRON_MAIN_DELEGATE_H_
+#ifndef ELECTRON_SHELL_APP_ELECTRON_MAIN_DELEGATE_H_
+#define ELECTRON_SHELL_APP_ELECTRON_MAIN_DELEGATE_H_
 
 #include <memory>
 #include <string>
@@ -66,4 +66,4 @@ class ElectronMainDelegate : public content::ContentMainDelegate {
 
 }  // namespace electron
 
-#endif  // SHELL_APP_ELECTRON_MAIN_DELEGATE_H_
+#endif  // ELECTRON_SHELL_APP_ELECTRON_MAIN_DELEGATE_H_
diff --git a/shell/app/electron_main_delegate_mac.h b/shell/app/electron_main_delegate_mac.h
index dc4004608cf..0550bd3a04c 100644
--- a/shell/app/electron_main_delegate_mac.h
+++ b/shell/app/electron_main_delegate_mac.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_APP_ELECTRON_MAIN_DELEGATE_MAC_H_
-#define SHELL_APP_ELECTRON_MAIN_DELEGATE_MAC_H_
+#ifndef ELECTRON_SHELL_APP_ELECTRON_MAIN_DELEGATE_MAC_H_
+#define ELECTRON_SHELL_APP_ELECTRON_MAIN_DELEGATE_MAC_H_
 
 namespace electron {
 
@@ -12,4 +12,4 @@ void RegisterAtomCrApp();
 
 }  // namespace electron
 
-#endif  // SHELL_APP_ELECTRON_MAIN_DELEGATE_MAC_H_
+#endif  // ELECTRON_SHELL_APP_ELECTRON_MAIN_DELEGATE_MAC_H_
diff --git a/shell/app/node_main.h b/shell/app/node_main.h
index e5168f51a3a..9aaa91b8dc5 100644
--- a/shell/app/node_main.h
+++ b/shell/app/node_main.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_APP_NODE_MAIN_H_
-#define SHELL_APP_NODE_MAIN_H_
+#ifndef ELECTRON_SHELL_APP_NODE_MAIN_H_
+#define ELECTRON_SHELL_APP_NODE_MAIN_H_
 
 namespace electron {
 
@@ -11,4 +11,4 @@ int NodeMain(int argc, char* argv[]);
 
 }  // namespace electron
 
-#endif  // SHELL_APP_NODE_MAIN_H_
+#endif  // ELECTRON_SHELL_APP_NODE_MAIN_H_
diff --git a/shell/app/uv_task_runner.h b/shell/app/uv_task_runner.h
index e6c1477182c..1d74b28d7c7 100644
--- a/shell/app/uv_task_runner.h
+++ b/shell/app/uv_task_runner.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_APP_UV_TASK_RUNNER_H_
-#define SHELL_APP_UV_TASK_RUNNER_H_
+#ifndef ELECTRON_SHELL_APP_UV_TASK_RUNNER_H_
+#define ELECTRON_SHELL_APP_UV_TASK_RUNNER_H_
 
 #include <map>
 
@@ -47,4 +47,4 @@ class UvTaskRunner : public base::SingleThreadTaskRunner {
 
 }  // namespace electron
 
-#endif  // SHELL_APP_UV_TASK_RUNNER_H_
+#endif  // ELECTRON_SHELL_APP_UV_TASK_RUNNER_H_
diff --git a/shell/browser/api/electron_api_app.h b/shell/browser/api/electron_api_app.h
index 229e54b35e1..4f48584e996 100644
--- a/shell/browser/api/electron_api_app.h
+++ b/shell/browser/api/electron_api_app.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_APP_H_
-#define SHELL_BROWSER_API_ELECTRON_API_APP_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_APP_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_APP_H_
 
 #include <map>
 #include <memory>
@@ -271,4 +271,4 @@ class App : public ElectronBrowserClient::Delegate,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_APP_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_APP_H_
diff --git a/shell/browser/api/electron_api_auto_updater.h b/shell/browser/api/electron_api_auto_updater.h
index 54202e5bdf8..6cbb7440cff 100644
--- a/shell/browser/api/electron_api_auto_updater.h
+++ b/shell/browser/api/electron_api_auto_updater.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_AUTO_UPDATER_H_
-#define SHELL_BROWSER_API_ELECTRON_API_AUTO_UPDATER_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_AUTO_UPDATER_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_AUTO_UPDATER_H_
 
 #include <string>
 
@@ -64,4 +64,4 @@ class AutoUpdater : public gin::Wrappable<AutoUpdater>,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_AUTO_UPDATER_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_AUTO_UPDATER_H_
diff --git a/shell/browser/api/electron_api_base_window.h b/shell/browser/api/electron_api_base_window.h
index 2adb90b1c69..04ae990ab15 100644
--- a/shell/browser/api/electron_api_base_window.h
+++ b/shell/browser/api/electron_api_base_window.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_BASE_WINDOW_H_
-#define SHELL_BROWSER_API_ELECTRON_API_BASE_WINDOW_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_BASE_WINDOW_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_BASE_WINDOW_H_
 
 #include <map>
 #include <memory>
@@ -287,4 +287,4 @@ class BaseWindow : public gin_helper::TrackableObject<BaseWindow>,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_BASE_WINDOW_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_BASE_WINDOW_H_
diff --git a/shell/browser/api/electron_api_browser_view.h b/shell/browser/api/electron_api_browser_view.h
index 4ab4b04f5eb..f635b0d8de8 100644
--- a/shell/browser/api/electron_api_browser_view.h
+++ b/shell/browser/api/electron_api_browser_view.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_BROWSER_VIEW_H_
-#define SHELL_BROWSER_API_ELECTRON_API_BROWSER_VIEW_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_BROWSER_VIEW_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_BROWSER_VIEW_H_
 
 #include <memory>
 #include <string>
@@ -94,4 +94,4 @@ class BrowserView : public gin::Wrappable<BrowserView>,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_BROWSER_VIEW_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_BROWSER_VIEW_H_
diff --git a/shell/browser/api/electron_api_browser_window.h b/shell/browser/api/electron_api_browser_window.h
index 198a7bc825a..296ed2b3f8c 100644
--- a/shell/browser/api/electron_api_browser_window.h
+++ b/shell/browser/api/electron_api_browser_window.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_BROWSER_WINDOW_H_
-#define SHELL_BROWSER_API_ELECTRON_API_BROWSER_WINDOW_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_BROWSER_WINDOW_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_BROWSER_WINDOW_H_
 
 #include <string>
 #include <vector>
@@ -133,4 +133,4 @@ class BrowserWindow : public BaseWindow,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_BROWSER_WINDOW_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_BROWSER_WINDOW_H_
diff --git a/shell/browser/api/electron_api_cookies.h b/shell/browser/api/electron_api_cookies.h
index 2d949e71fd3..fbfa335ce9f 100644
--- a/shell/browser/api/electron_api_cookies.h
+++ b/shell/browser/api/electron_api_cookies.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_COOKIES_H_
-#define SHELL_BROWSER_API_ELECTRON_API_COOKIES_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_COOKIES_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_COOKIES_H_
 
 #include <string>
 
@@ -72,4 +72,4 @@ class Cookies : public gin::Wrappable<Cookies>,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_COOKIES_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_COOKIES_H_
diff --git a/shell/browser/api/electron_api_crash_reporter.h b/shell/browser/api/electron_api_crash_reporter.h
index 8780a8e81b8..48f540287f9 100644
--- a/shell/browser/api/electron_api_crash_reporter.h
+++ b/shell/browser/api/electron_api_crash_reporter.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_CRASH_REPORTER_H_
-#define SHELL_BROWSER_API_ELECTRON_API_CRASH_REPORTER_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_CRASH_REPORTER_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_CRASH_REPORTER_H_
 
 #include <map>
 #include <string>
@@ -38,4 +38,4 @@ void Start(const std::string& submit_url,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_CRASH_REPORTER_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_CRASH_REPORTER_H_
diff --git a/shell/browser/api/electron_api_data_pipe_holder.h b/shell/browser/api/electron_api_data_pipe_holder.h
index a8ea87ef415..535440d2683 100644
--- a/shell/browser/api/electron_api_data_pipe_holder.h
+++ b/shell/browser/api/electron_api_data_pipe_holder.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_DATA_PIPE_HOLDER_H_
-#define SHELL_BROWSER_API_ELECTRON_API_DATA_PIPE_HOLDER_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_DATA_PIPE_HOLDER_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_DATA_PIPE_HOLDER_H_
 
 #include <string>
 
@@ -53,4 +53,4 @@ class DataPipeHolder : public gin::Wrappable<DataPipeHolder> {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_DATA_PIPE_HOLDER_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_DATA_PIPE_HOLDER_H_
diff --git a/shell/browser/api/electron_api_debugger.h b/shell/browser/api/electron_api_debugger.h
index 37892e43b91..204cd42365e 100644
--- a/shell/browser/api/electron_api_debugger.h
+++ b/shell/browser/api/electron_api_debugger.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_DEBUGGER_H_
-#define SHELL_BROWSER_API_ELECTRON_API_DEBUGGER_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_DEBUGGER_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_DEBUGGER_H_
 
 #include <map>
 
@@ -78,4 +78,4 @@ class Debugger : public gin::Wrappable<Debugger>,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_DEBUGGER_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_DEBUGGER_H_
diff --git a/shell/browser/api/electron_api_desktop_capturer.h b/shell/browser/api/electron_api_desktop_capturer.h
index e3b2fa3e187..b31686e853f 100644
--- a/shell/browser/api/electron_api_desktop_capturer.h
+++ b/shell/browser/api/electron_api_desktop_capturer.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_DESKTOP_CAPTURER_H_
-#define SHELL_BROWSER_API_ELECTRON_API_DESKTOP_CAPTURER_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_DESKTOP_CAPTURER_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_DESKTOP_CAPTURER_H_
 
 #include <memory>
 #include <string>
@@ -81,4 +81,4 @@ class DesktopCapturer : public gin::Wrappable<DesktopCapturer>,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_DESKTOP_CAPTURER_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_DESKTOP_CAPTURER_H_
diff --git a/shell/browser/api/electron_api_download_item.h b/shell/browser/api/electron_api_download_item.h
index c080202be4e..4ca867baf52 100644
--- a/shell/browser/api/electron_api_download_item.h
+++ b/shell/browser/api/electron_api_download_item.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_DOWNLOAD_ITEM_H_
-#define SHELL_BROWSER_API_ELECTRON_API_DOWNLOAD_ITEM_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_DOWNLOAD_ITEM_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_DOWNLOAD_ITEM_H_
 
 #include <string>
 
@@ -91,4 +91,4 @@ class DownloadItem : public gin::Wrappable<DownloadItem>,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_DOWNLOAD_ITEM_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_DOWNLOAD_ITEM_H_
diff --git a/shell/browser/api/electron_api_event_emitter.h b/shell/browser/api/electron_api_event_emitter.h
index ab20c7c5fb8..35baadcc38a 100644
--- a/shell/browser/api/electron_api_event_emitter.h
+++ b/shell/browser/api/electron_api_event_emitter.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_EVENT_EMITTER_H_
-#define SHELL_BROWSER_API_ELECTRON_API_EVENT_EMITTER_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_EVENT_EMITTER_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_EVENT_EMITTER_H_
 
 namespace v8 {
 template <typename T>
@@ -18,4 +18,4 @@ v8::Local<v8::Object> GetEventEmitterPrototype(v8::Isolate* isolate);
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_EVENT_EMITTER_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_EVENT_EMITTER_H_
diff --git a/shell/browser/api/electron_api_global_shortcut.h b/shell/browser/api/electron_api_global_shortcut.h
index 9c1d82ee9d9..19a86fe2963 100644
--- a/shell/browser/api/electron_api_global_shortcut.h
+++ b/shell/browser/api/electron_api_global_shortcut.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_GLOBAL_SHORTCUT_H_
-#define SHELL_BROWSER_API_ELECTRON_API_GLOBAL_SHORTCUT_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_GLOBAL_SHORTCUT_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_GLOBAL_SHORTCUT_H_
 
 #include <map>
 #include <vector>
@@ -60,4 +60,4 @@ class GlobalShortcut : public extensions::GlobalShortcutListener::Observer,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_GLOBAL_SHORTCUT_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_GLOBAL_SHORTCUT_H_
diff --git a/shell/browser/api/electron_api_in_app_purchase.h b/shell/browser/api/electron_api_in_app_purchase.h
index b2bc81fe571..bd765bb1787 100644
--- a/shell/browser/api/electron_api_in_app_purchase.h
+++ b/shell/browser/api/electron_api_in_app_purchase.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_IN_APP_PURCHASE_H_
-#define SHELL_BROWSER_API_ELECTRON_API_IN_APP_PURCHASE_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_IN_APP_PURCHASE_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_IN_APP_PURCHASE_H_
 
 #include <string>
 #include <vector>
@@ -55,4 +55,4 @@ class InAppPurchase : public gin::Wrappable<InAppPurchase>,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_IN_APP_PURCHASE_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_IN_APP_PURCHASE_H_
diff --git a/shell/browser/api/electron_api_menu.h b/shell/browser/api/electron_api_menu.h
index d6ebcc34425..5841862bda7 100644
--- a/shell/browser/api/electron_api_menu.h
+++ b/shell/browser/api/electron_api_menu.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_MENU_H_
-#define SHELL_BROWSER_API_ELECTRON_API_MENU_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_MENU_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_MENU_H_
 
 #include <memory>
 #include <string>
@@ -150,4 +150,4 @@ struct Converter<electron::ElectronMenuModel*> {
 
 }  // namespace gin
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_MENU_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_MENU_H_
diff --git a/shell/browser/api/electron_api_menu_mac.h b/shell/browser/api/electron_api_menu_mac.h
index c16957fcd23..f47276ea8d8 100644
--- a/shell/browser/api/electron_api_menu_mac.h
+++ b/shell/browser/api/electron_api_menu_mac.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_MENU_MAC_H_
-#define SHELL_BROWSER_API_ELECTRON_API_MENU_MAC_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_MENU_MAC_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_MENU_MAC_H_
 
 #include "shell/browser/api/electron_api_menu.h"
 
@@ -54,4 +54,4 @@ class MenuMac : public Menu {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_MENU_MAC_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_MENU_MAC_H_
diff --git a/shell/browser/api/electron_api_menu_views.h b/shell/browser/api/electron_api_menu_views.h
index cd288625c43..a0d40f9354a 100644
--- a/shell/browser/api/electron_api_menu_views.h
+++ b/shell/browser/api/electron_api_menu_views.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_MENU_VIEWS_H_
-#define SHELL_BROWSER_API_ELECTRON_API_MENU_VIEWS_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_MENU_VIEWS_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_MENU_VIEWS_H_
 
 #include <map>
 #include <memory>
@@ -43,4 +43,4 @@ class MenuViews : public Menu {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_MENU_VIEWS_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_MENU_VIEWS_H_
diff --git a/shell/browser/api/electron_api_native_theme.h b/shell/browser/api/electron_api_native_theme.h
index b717ca7a10a..d66e7713ded 100644
--- a/shell/browser/api/electron_api_native_theme.h
+++ b/shell/browser/api/electron_api_native_theme.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_NATIVE_THEME_H_
-#define SHELL_BROWSER_API_ELECTRON_API_NATIVE_THEME_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_NATIVE_THEME_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_NATIVE_THEME_H_
 
 #include "gin/handle.h"
 #include "gin/wrappable.h"
@@ -73,4 +73,4 @@ struct Converter<ui::NativeTheme::ThemeSource> {
 
 }  // namespace gin
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_NATIVE_THEME_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_NATIVE_THEME_H_
diff --git a/shell/browser/api/electron_api_net_log.h b/shell/browser/api/electron_api_net_log.h
index a1934f96305..30a6ad6981a 100644
--- a/shell/browser/api/electron_api_net_log.h
+++ b/shell/browser/api/electron_api_net_log.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_NET_LOG_H_
-#define SHELL_BROWSER_API_ELECTRON_API_NET_LOG_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_NET_LOG_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_NET_LOG_H_
 
 #include "base/callback.h"
 #include "base/files/file_path.h"
@@ -77,4 +77,4 @@ class NetLog : public gin::Wrappable<NetLog> {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_NET_LOG_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_NET_LOG_H_
diff --git a/shell/browser/api/electron_api_notification.h b/shell/browser/api/electron_api_notification.h
index bd03a295823..8213c424ee6 100644
--- a/shell/browser/api/electron_api_notification.h
+++ b/shell/browser/api/electron_api_notification.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_NOTIFICATION_H_
-#define SHELL_BROWSER_API_ELECTRON_API_NOTIFICATION_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_NOTIFICATION_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_NOTIFICATION_H_
 
 #include <string>
 #include <vector>
@@ -121,4 +121,4 @@ class Notification : public gin::Wrappable<Notification>,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_NOTIFICATION_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_NOTIFICATION_H_
diff --git a/shell/browser/api/electron_api_power_monitor.h b/shell/browser/api/electron_api_power_monitor.h
index 6a84b32a355..c277d3e2b29 100644
--- a/shell/browser/api/electron_api_power_monitor.h
+++ b/shell/browser/api/electron_api_power_monitor.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_POWER_MONITOR_H_
-#define SHELL_BROWSER_API_ELECTRON_API_POWER_MONITOR_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_POWER_MONITOR_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_POWER_MONITOR_H_
 
 #include "base/power_monitor/power_observer.h"
 #include "gin/wrappable.h"
@@ -90,4 +90,4 @@ class PowerMonitor : public gin::Wrappable<PowerMonitor>,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_POWER_MONITOR_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_POWER_MONITOR_H_
diff --git a/shell/browser/api/electron_api_power_save_blocker.h b/shell/browser/api/electron_api_power_save_blocker.h
index 6216fa0dce0..74a08f55e44 100644
--- a/shell/browser/api/electron_api_power_save_blocker.h
+++ b/shell/browser/api/electron_api_power_save_blocker.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_POWER_SAVE_BLOCKER_H_
-#define SHELL_BROWSER_API_ELECTRON_API_POWER_SAVE_BLOCKER_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_POWER_SAVE_BLOCKER_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_POWER_SAVE_BLOCKER_H_
 
 #include <map>
 
@@ -60,4 +60,4 @@ class PowerSaveBlocker : public gin::Wrappable<PowerSaveBlocker> {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_POWER_SAVE_BLOCKER_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_POWER_SAVE_BLOCKER_H_
diff --git a/shell/browser/api/electron_api_protocol.h b/shell/browser/api/electron_api_protocol.h
index d0420ff14ad..46fe33667e5 100644
--- a/shell/browser/api/electron_api_protocol.h
+++ b/shell/browser/api/electron_api_protocol.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_PROTOCOL_H_
-#define SHELL_BROWSER_API_ELECTRON_API_PROTOCOL_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_PROTOCOL_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_PROTOCOL_H_
 
 #include <string>
 #include <vector>
@@ -103,4 +103,4 @@ class Protocol : public gin::Wrappable<Protocol> {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_PROTOCOL_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_PROTOCOL_H_
diff --git a/shell/browser/api/electron_api_safe_storage.h b/shell/browser/api/electron_api_safe_storage.h
index bcaf6d1e9b3..d312769a3f5 100644
--- a/shell/browser/api/electron_api_safe_storage.h
+++ b/shell/browser/api/electron_api_safe_storage.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_SAFE_STORAGE_H_
-#define SHELL_BROWSER_API_ELECTRON_API_SAFE_STORAGE_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_SAFE_STORAGE_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_SAFE_STORAGE_H_
 
 #include "base/dcheck_is_on.h"
 
@@ -22,4 +22,4 @@ void SetElectronCryptoReady(bool ready);
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_SAFE_STORAGE_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_SAFE_STORAGE_H_
diff --git a/shell/browser/api/electron_api_screen.h b/shell/browser/api/electron_api_screen.h
index 1283544f333..a8121b9ce54 100644
--- a/shell/browser/api/electron_api_screen.h
+++ b/shell/browser/api/electron_api_screen.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_SCREEN_H_
-#define SHELL_BROWSER_API_ELECTRON_API_SCREEN_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_SCREEN_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_SCREEN_H_
 
 #include <vector>
 
@@ -62,4 +62,4 @@ class Screen : public gin::Wrappable<Screen>,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_SCREEN_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_SCREEN_H_
diff --git a/shell/browser/api/electron_api_service_worker_context.h b/shell/browser/api/electron_api_service_worker_context.h
index 4d2a84d0552..048bcda7162 100644
--- a/shell/browser/api/electron_api_service_worker_context.h
+++ b/shell/browser/api/electron_api_service_worker_context.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_SERVICE_WORKER_CONTEXT_H_
-#define SHELL_BROWSER_API_ELECTRON_API_SERVICE_WORKER_CONTEXT_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_SERVICE_WORKER_CONTEXT_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_SERVICE_WORKER_CONTEXT_H_
 
 #include "content/public/browser/service_worker_context.h"
 #include "content/public/browser/service_worker_context_observer.h"
@@ -62,4 +62,4 @@ class ServiceWorkerContext
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_SERVICE_WORKER_CONTEXT_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_SERVICE_WORKER_CONTEXT_H_
diff --git a/shell/browser/api/electron_api_session.h b/shell/browser/api/electron_api_session.h
index 79eedd91c47..aedf234d38a 100644
--- a/shell/browser/api/electron_api_session.h
+++ b/shell/browser/api/electron_api_session.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_SESSION_H_
-#define SHELL_BROWSER_API_ELECTRON_API_SESSION_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_SESSION_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_SESSION_H_
 
 #include <string>
 #include <vector>
@@ -197,4 +197,4 @@ class Session : public gin::Wrappable<Session>,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_SESSION_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_SESSION_H_
diff --git a/shell/browser/api/electron_api_system_preferences.h b/shell/browser/api/electron_api_system_preferences.h
index 8c8ee40dadb..8dbf35d5919 100644
--- a/shell/browser/api/electron_api_system_preferences.h
+++ b/shell/browser/api/electron_api_system_preferences.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_SYSTEM_PREFERENCES_H_
-#define SHELL_BROWSER_API_ELECTRON_API_SYSTEM_PREFERENCES_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_SYSTEM_PREFERENCES_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_SYSTEM_PREFERENCES_H_
 
 #include <memory>
 #include <string>
@@ -172,4 +172,4 @@ class SystemPreferences
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_SYSTEM_PREFERENCES_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_SYSTEM_PREFERENCES_H_
diff --git a/shell/browser/api/electron_api_tray.h b/shell/browser/api/electron_api_tray.h
index 659ed2f41d8..19a28eef237 100644
--- a/shell/browser/api/electron_api_tray.h
+++ b/shell/browser/api/electron_api_tray.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_TRAY_H_
-#define SHELL_BROWSER_API_ELECTRON_API_TRAY_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_TRAY_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_TRAY_H_
 
 #include <memory>
 #include <string>
@@ -115,4 +115,4 @@ class Tray : public gin::Wrappable<Tray>,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_TRAY_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_TRAY_H_
diff --git a/shell/browser/api/electron_api_url_loader.h b/shell/browser/api/electron_api_url_loader.h
index dac2c494845..6726f2c4b41 100644
--- a/shell/browser/api/electron_api_url_loader.h
+++ b/shell/browser/api/electron_api_url_loader.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_URL_LOADER_H_
-#define SHELL_BROWSER_API_ELECTRON_API_URL_LOADER_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_URL_LOADER_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_URL_LOADER_H_
 
 #include <memory>
 #include <string>
@@ -125,4 +125,4 @@ class SimpleURLLoaderWrapper
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_URL_LOADER_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_URL_LOADER_H_
diff --git a/shell/browser/api/electron_api_view.h b/shell/browser/api/electron_api_view.h
index 0672499a06d..ed2e483de0e 100644
--- a/shell/browser/api/electron_api_view.h
+++ b/shell/browser/api/electron_api_view.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_VIEW_H_
-#define SHELL_BROWSER_API_ELECTRON_API_VIEW_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_VIEW_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_VIEW_H_
 
 #include <vector>
 
@@ -53,4 +53,4 @@ class View : public gin_helper::Wrappable<View> {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_VIEW_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_VIEW_H_
diff --git a/shell/browser/api/electron_api_web_contents.h b/shell/browser/api/electron_api_web_contents.h
index e1287b303fd..c164d4bee71 100644
--- a/shell/browser/api/electron_api_web_contents.h
+++ b/shell/browser/api/electron_api_web_contents.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_WEB_CONTENTS_H_
-#define SHELL_BROWSER_API_ELECTRON_API_WEB_CONTENTS_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_WEB_CONTENTS_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_WEB_CONTENTS_H_
 
 #include <map>
 #include <memory>
@@ -830,4 +830,4 @@ class WebContents : public ExclusiveAccessContext,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_WEB_CONTENTS_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_WEB_CONTENTS_H_
diff --git a/shell/browser/api/electron_api_web_contents_view.h b/shell/browser/api/electron_api_web_contents_view.h
index c184533d0e9..d1f39ff26ef 100644
--- a/shell/browser/api/electron_api_web_contents_view.h
+++ b/shell/browser/api/electron_api_web_contents_view.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_WEB_CONTENTS_VIEW_H_
-#define SHELL_BROWSER_API_ELECTRON_API_WEB_CONTENTS_VIEW_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_WEB_CONTENTS_VIEW_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_WEB_CONTENTS_VIEW_H_
 
 #include "content/public/browser/web_contents_observer.h"
 #include "shell/browser/api/electron_api_view.h"
@@ -57,4 +57,4 @@ class WebContentsView : public View, public content::WebContentsObserver {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_WEB_CONTENTS_VIEW_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_WEB_CONTENTS_VIEW_H_
diff --git a/shell/browser/api/electron_api_web_frame_main.h b/shell/browser/api/electron_api_web_frame_main.h
index 61cabf0825d..23a3b657fd4 100644
--- a/shell/browser/api/electron_api_web_frame_main.h
+++ b/shell/browser/api/electron_api_web_frame_main.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_WEB_FRAME_MAIN_H_
-#define SHELL_BROWSER_API_ELECTRON_API_WEB_FRAME_MAIN_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_WEB_FRAME_MAIN_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_WEB_FRAME_MAIN_H_
 
 #include <string>
 #include <vector>
@@ -134,4 +134,4 @@ class WebFrameMain : public gin::Wrappable<WebFrameMain>,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_WEB_FRAME_MAIN_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_WEB_FRAME_MAIN_H_
diff --git a/shell/browser/api/electron_api_web_request.h b/shell/browser/api/electron_api_web_request.h
index 8b7b25bd1d7..fb8bee6a3c6 100644
--- a/shell/browser/api/electron_api_web_request.h
+++ b/shell/browser/api/electron_api_web_request.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_ELECTRON_API_WEB_REQUEST_H_
-#define SHELL_BROWSER_API_ELECTRON_API_WEB_REQUEST_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_ELECTRON_API_WEB_REQUEST_H_
+#define ELECTRON_SHELL_BROWSER_API_ELECTRON_API_WEB_REQUEST_H_
 
 #include <map>
 #include <set>
@@ -155,4 +155,4 @@ class WebRequest : public gin::Wrappable<WebRequest>, public WebRequestAPI {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_ELECTRON_API_WEB_REQUEST_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_ELECTRON_API_WEB_REQUEST_H_
diff --git a/shell/browser/api/event.h b/shell/browser/api/event.h
index af20cfb8d31..4a09575896e 100644
--- a/shell/browser/api/event.h
+++ b/shell/browser/api/event.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_EVENT_H_
-#define SHELL_BROWSER_API_EVENT_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_EVENT_H_
+#define ELECTRON_SHELL_BROWSER_API_EVENT_H_
 
 #include "electron/shell/common/api/api.mojom.h"
 #include "gin/handle.h"
@@ -49,4 +49,4 @@ class Event : public gin::Wrappable<Event> {
 
 }  // namespace gin_helper
 
-#endif  // SHELL_BROWSER_API_EVENT_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_EVENT_H_
diff --git a/shell/browser/api/frame_subscriber.h b/shell/browser/api/frame_subscriber.h
index 782d8997fd4..1197a83a80e 100644
--- a/shell/browser/api/frame_subscriber.h
+++ b/shell/browser/api/frame_subscriber.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_FRAME_SUBSCRIBER_H_
-#define SHELL_BROWSER_API_FRAME_SUBSCRIBER_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_FRAME_SUBSCRIBER_H_
+#define ELECTRON_SHELL_BROWSER_API_FRAME_SUBSCRIBER_H_
 
 #include <memory>
 #include <string>
@@ -79,4 +79,4 @@ class FrameSubscriber : public content::WebContentsObserver,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_FRAME_SUBSCRIBER_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_FRAME_SUBSCRIBER_H_
diff --git a/shell/browser/api/gpu_info_enumerator.h b/shell/browser/api/gpu_info_enumerator.h
index aa4db848671..389aa9d604d 100644
--- a/shell/browser/api/gpu_info_enumerator.h
+++ b/shell/browser/api/gpu_info_enumerator.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_GPU_INFO_ENUMERATOR_H_
-#define SHELL_BROWSER_API_GPU_INFO_ENUMERATOR_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_GPU_INFO_ENUMERATOR_H_
+#define ELECTRON_SHELL_BROWSER_API_GPU_INFO_ENUMERATOR_H_
 
 #include <memory>
 #include <stack>
@@ -59,4 +59,4 @@ class GPUInfoEnumerator final : public gpu::GPUInfo::Enumerator {
 };
 
 }  // namespace electron
-#endif  // SHELL_BROWSER_API_GPU_INFO_ENUMERATOR_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_GPU_INFO_ENUMERATOR_H_
diff --git a/shell/browser/api/gpuinfo_manager.h b/shell/browser/api/gpuinfo_manager.h
index ae59f7f4dc9..43357ececc2 100644
--- a/shell/browser/api/gpuinfo_manager.h
+++ b/shell/browser/api/gpuinfo_manager.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_GPUINFO_MANAGER_H_
-#define SHELL_BROWSER_API_GPUINFO_MANAGER_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_GPUINFO_MANAGER_H_
+#define ELECTRON_SHELL_BROWSER_API_GPUINFO_MANAGER_H_
 
 #include <memory>
 #include <vector>
@@ -48,4 +48,4 @@ class GPUInfoManager : public content::GpuDataManagerObserver {
 };
 
 }  // namespace electron
-#endif  // SHELL_BROWSER_API_GPUINFO_MANAGER_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_GPUINFO_MANAGER_H_
diff --git a/shell/browser/api/message_port.h b/shell/browser/api/message_port.h
index d46f077afe4..6562018de89 100644
--- a/shell/browser/api/message_port.h
+++ b/shell/browser/api/message_port.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_MESSAGE_PORT_H_
-#define SHELL_BROWSER_API_MESSAGE_PORT_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_MESSAGE_PORT_H_
+#define ELECTRON_SHELL_BROWSER_API_MESSAGE_PORT_H_
 
 #include <memory>
 #include <vector>
@@ -88,4 +88,4 @@ class MessagePort : public gin::Wrappable<MessagePort>, mojo::MessageReceiver {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_MESSAGE_PORT_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_MESSAGE_PORT_H_
diff --git a/shell/browser/api/process_metric.h b/shell/browser/api/process_metric.h
index 6c83e840322..a6b91fff70c 100644
--- a/shell/browser/api/process_metric.h
+++ b/shell/browser/api/process_metric.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_PROCESS_METRIC_H_
-#define SHELL_BROWSER_API_PROCESS_METRIC_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_PROCESS_METRIC_H_
+#define ELECTRON_SHELL_BROWSER_API_PROCESS_METRIC_H_
 
 #include <memory>
 #include <string>
@@ -62,4 +62,4 @@ struct ProcessMetric {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_PROCESS_METRIC_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_PROCESS_METRIC_H_
diff --git a/shell/browser/api/save_page_handler.h b/shell/browser/api/save_page_handler.h
index 19ec75179ae..00202a0d5a3 100644
--- a/shell/browser/api/save_page_handler.h
+++ b/shell/browser/api/save_page_handler.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_SAVE_PAGE_HANDLER_H_
-#define SHELL_BROWSER_API_SAVE_PAGE_HANDLER_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_SAVE_PAGE_HANDLER_H_
+#define ELECTRON_SHELL_BROWSER_API_SAVE_PAGE_HANDLER_H_
 
 #include "components/download/public/common/download_item.h"
 #include "content/public/browser/download_manager.h"
@@ -52,4 +52,4 @@ class SavePageHandler : public content::DownloadManager::Observer,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_SAVE_PAGE_HANDLER_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_SAVE_PAGE_HANDLER_H_
diff --git a/shell/browser/api/ui_event.h b/shell/browser/api/ui_event.h
index 700864fa86b..0f0ca1eb839 100644
--- a/shell/browser/api/ui_event.h
+++ b/shell/browser/api/ui_event.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_UI_EVENT_H_
-#define SHELL_BROWSER_API_UI_EVENT_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_UI_EVENT_H_
+#define ELECTRON_SHELL_BROWSER_API_UI_EVENT_H_
 
 namespace v8 {
 class Object;
@@ -19,4 +19,4 @@ v8::Local<v8::Object> CreateEventFromFlags(int flags);
 }  // namespace api
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_UI_EVENT_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_UI_EVENT_H_
diff --git a/shell/browser/api/views/electron_api_image_view.h b/shell/browser/api/views/electron_api_image_view.h
index 504c2bbb259..332caa21b23 100644
--- a/shell/browser/api/views/electron_api_image_view.h
+++ b/shell/browser/api/views/electron_api_image_view.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_API_VIEWS_ELECTRON_API_IMAGE_VIEW_H_
-#define SHELL_BROWSER_API_VIEWS_ELECTRON_API_IMAGE_VIEW_H_
+#ifndef ELECTRON_SHELL_BROWSER_API_VIEWS_ELECTRON_API_IMAGE_VIEW_H_
+#define ELECTRON_SHELL_BROWSER_API_VIEWS_ELECTRON_API_IMAGE_VIEW_H_
 
 #include "gin/handle.h"
 #include "shell/browser/api/electron_api_view.h"
@@ -36,4 +36,4 @@ class ImageView : public View {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_API_VIEWS_ELECTRON_API_IMAGE_VIEW_H_
+#endif  // ELECTRON_SHELL_BROWSER_API_VIEWS_ELECTRON_API_IMAGE_VIEW_H_
diff --git a/shell/browser/auto_updater.h b/shell/browser/auto_updater.h
index 628ac206476..d9c326d6d5a 100644
--- a/shell/browser/auto_updater.h
+++ b/shell/browser/auto_updater.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_AUTO_UPDATER_H_
-#define SHELL_BROWSER_AUTO_UPDATER_H_
+#ifndef ELECTRON_SHELL_BROWSER_AUTO_UPDATER_H_
+#define ELECTRON_SHELL_BROWSER_AUTO_UPDATER_H_
 
 #include <map>
 #include <string>
@@ -76,4 +76,4 @@ class AutoUpdater {
 
 }  // namespace auto_updater
 
-#endif  // SHELL_BROWSER_AUTO_UPDATER_H_
+#endif  // ELECTRON_SHELL_BROWSER_AUTO_UPDATER_H_
diff --git a/shell/browser/badging/badge_manager.h b/shell/browser/badging/badge_manager.h
index de5db277833..0db3e53fb2d 100644
--- a/shell/browser/badging/badge_manager.h
+++ b/shell/browser/badging/badge_manager.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_BADGING_BADGE_MANAGER_H_
-#define SHELL_BROWSER_BADGING_BADGE_MANAGER_H_
+#ifndef ELECTRON_SHELL_BROWSER_BADGING_BADGE_MANAGER_H_
+#define ELECTRON_SHELL_BROWSER_BADGING_BADGE_MANAGER_H_
 
 #include <memory>
 #include <string>
@@ -105,4 +105,4 @@ class BadgeManager : public KeyedService, public blink::mojom::BadgeService {
 
 }  // namespace badging
 
-#endif  // SHELL_BROWSER_BADGING_BADGE_MANAGER_H_
+#endif  // ELECTRON_SHELL_BROWSER_BADGING_BADGE_MANAGER_H_
diff --git a/shell/browser/badging/badge_manager_factory.h b/shell/browser/badging/badge_manager_factory.h
index ce5e563b98f..dac4161cb7e 100644
--- a/shell/browser/badging/badge_manager_factory.h
+++ b/shell/browser/badging/badge_manager_factory.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_BADGING_BADGE_MANAGER_FACTORY_H_
-#define SHELL_BROWSER_BADGING_BADGE_MANAGER_FACTORY_H_
+#ifndef ELECTRON_SHELL_BROWSER_BADGING_BADGE_MANAGER_FACTORY_H_
+#define ELECTRON_SHELL_BROWSER_BADGING_BADGE_MANAGER_FACTORY_H_
 
 #include "components/keyed_service/content/browser_context_keyed_service_factory.h"
 
@@ -42,4 +42,4 @@ class BadgeManagerFactory : public BrowserContextKeyedServiceFactory {
 
 }  // namespace badging
 
-#endif  // SHELL_BROWSER_BADGING_BADGE_MANAGER_FACTORY_H_
+#endif  // ELECTRON_SHELL_BROWSER_BADGING_BADGE_MANAGER_FACTORY_H_
diff --git a/shell/browser/bluetooth/electron_bluetooth_delegate.h b/shell/browser/bluetooth/electron_bluetooth_delegate.h
index e4e7619112f..897ce2f2d31 100644
--- a/shell/browser/bluetooth/electron_bluetooth_delegate.h
+++ b/shell/browser/bluetooth/electron_bluetooth_delegate.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_BLUETOOTH_ELECTRON_BLUETOOTH_DELEGATE_H_
-#define SHELL_BROWSER_BLUETOOTH_ELECTRON_BLUETOOTH_DELEGATE_H_
+#ifndef ELECTRON_SHELL_BROWSER_BLUETOOTH_ELECTRON_BLUETOOTH_DELEGATE_H_
+#define ELECTRON_SHELL_BROWSER_BLUETOOTH_ELECTRON_BLUETOOTH_DELEGATE_H_
 
 #include <memory>
 #include <string>
@@ -90,4 +90,4 @@ class ElectronBluetoothDelegate : public content::BluetoothDelegate {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_BLUETOOTH_ELECTRON_BLUETOOTH_DELEGATE_H_
+#endif  // ELECTRON_SHELL_BROWSER_BLUETOOTH_ELECTRON_BLUETOOTH_DELEGATE_H_
diff --git a/shell/browser/browser.h b/shell/browser/browser.h
index 4c5acec2f97..a9bc9f777e7 100755
--- a/shell/browser/browser.h
+++ b/shell/browser/browser.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_BROWSER_H_
-#define SHELL_BROWSER_BROWSER_H_
+#ifndef ELECTRON_SHELL_BROWSER_BROWSER_H_
+#define ELECTRON_SHELL_BROWSER_BROWSER_H_
 
 #include <memory>
 #include <string>
@@ -378,4 +378,4 @@ class Browser : public WindowListObserver {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_BROWSER_H_
+#endif  // ELECTRON_SHELL_BROWSER_BROWSER_H_
diff --git a/shell/browser/browser_observer.h b/shell/browser/browser_observer.h
index 5b33821c2e1..be9244f2f5e 100644
--- a/shell/browser/browser_observer.h
+++ b/shell/browser/browser_observer.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_BROWSER_OBSERVER_H_
-#define SHELL_BROWSER_BROWSER_OBSERVER_H_
+#ifndef ELECTRON_SHELL_BROWSER_BROWSER_OBSERVER_H_
+#define ELECTRON_SHELL_BROWSER_BROWSER_OBSERVER_H_
 
 #include <string>
 
@@ -94,4 +94,4 @@ class BrowserObserver : public base::CheckedObserver {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_BROWSER_OBSERVER_H_
+#endif  // ELECTRON_SHELL_BROWSER_BROWSER_OBSERVER_H_
diff --git a/shell/browser/browser_process_impl.h b/shell/browser/browser_process_impl.h
index 1d05cf22edb..1d42417940a 100644
--- a/shell/browser/browser_process_impl.h
+++ b/shell/browser/browser_process_impl.h
@@ -7,8 +7,8 @@
 // will return NULL if the service is not available, so callers must check for
 // this condition.
 
-#ifndef SHELL_BROWSER_BROWSER_PROCESS_IMPL_H_
-#define SHELL_BROWSER_BROWSER_PROCESS_IMPL_H_
+#ifndef ELECTRON_SHELL_BROWSER_BROWSER_PROCESS_IMPL_H_
+#define ELECTRON_SHELL_BROWSER_BROWSER_PROCESS_IMPL_H_
 
 #include <memory>
 #include <string>
@@ -114,4 +114,4 @@ class BrowserProcessImpl : public BrowserProcess {
   std::string locale_;
 };
 
-#endif  // SHELL_BROWSER_BROWSER_PROCESS_IMPL_H_
+#endif  // ELECTRON_SHELL_BROWSER_BROWSER_PROCESS_IMPL_H_
diff --git a/shell/browser/certificate_manager_model.h b/shell/browser/certificate_manager_model.h
index e04670737e1..8f959dc212d 100644
--- a/shell/browser/certificate_manager_model.h
+++ b/shell/browser/certificate_manager_model.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_CERTIFICATE_MANAGER_MODEL_H_
-#define SHELL_BROWSER_CERTIFICATE_MANAGER_MODEL_H_
+#ifndef ELECTRON_SHELL_BROWSER_CERTIFICATE_MANAGER_MODEL_H_
+#define ELECTRON_SHELL_BROWSER_CERTIFICATE_MANAGER_MODEL_H_
 
 #include <memory>
 #include <string>
@@ -113,4 +113,4 @@ class CertificateManagerModel {
   bool is_user_db_available_;
 };
 
-#endif  // SHELL_BROWSER_CERTIFICATE_MANAGER_MODEL_H_
+#endif  // ELECTRON_SHELL_BROWSER_CERTIFICATE_MANAGER_MODEL_H_
diff --git a/shell/browser/child_web_contents_tracker.h b/shell/browser/child_web_contents_tracker.h
index fea53db5d83..c16113af727 100644
--- a/shell/browser/child_web_contents_tracker.h
+++ b/shell/browser/child_web_contents_tracker.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_CHILD_WEB_CONTENTS_TRACKER_H_
-#define SHELL_BROWSER_CHILD_WEB_CONTENTS_TRACKER_H_
+#ifndef ELECTRON_SHELL_BROWSER_CHILD_WEB_CONTENTS_TRACKER_H_
+#define ELECTRON_SHELL_BROWSER_CHILD_WEB_CONTENTS_TRACKER_H_
 
 #include <string>
 
@@ -36,4 +36,4 @@ struct ChildWebContentsTracker
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_CHILD_WEB_CONTENTS_TRACKER_H_
+#endif  // ELECTRON_SHELL_BROWSER_CHILD_WEB_CONTENTS_TRACKER_H_
diff --git a/shell/browser/cookie_change_notifier.h b/shell/browser/cookie_change_notifier.h
index 161b40167f7..be33c2b2946 100644
--- a/shell/browser/cookie_change_notifier.h
+++ b/shell/browser/cookie_change_notifier.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_COOKIE_CHANGE_NOTIFIER_H_
-#define SHELL_BROWSER_COOKIE_CHANGE_NOTIFIER_H_
+#ifndef ELECTRON_SHELL_BROWSER_COOKIE_CHANGE_NOTIFIER_H_
+#define ELECTRON_SHELL_BROWSER_COOKIE_CHANGE_NOTIFIER_H_
 
 #include "base/callback_list.h"
 #include "mojo/public/cpp/bindings/receiver.h"
@@ -45,4 +45,4 @@ class CookieChangeNotifier : public network::mojom::CookieChangeListener {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_COOKIE_CHANGE_NOTIFIER_H_
+#endif  // ELECTRON_SHELL_BROWSER_COOKIE_CHANGE_NOTIFIER_H_
diff --git a/shell/browser/electron_autofill_driver.h b/shell/browser/electron_autofill_driver.h
index 1a2fe404405..53219ce72f1 100644
--- a/shell/browser/electron_autofill_driver.h
+++ b/shell/browser/electron_autofill_driver.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_ELECTRON_AUTOFILL_DRIVER_H_
-#define SHELL_BROWSER_ELECTRON_AUTOFILL_DRIVER_H_
+#ifndef ELECTRON_SHELL_BROWSER_ELECTRON_AUTOFILL_DRIVER_H_
+#define ELECTRON_SHELL_BROWSER_ELECTRON_AUTOFILL_DRIVER_H_
 
 #include <memory>
 #include <vector>
@@ -46,4 +46,4 @@ class AutofillDriver : public mojom::ElectronAutofillDriver {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_ELECTRON_AUTOFILL_DRIVER_H_
+#endif  // ELECTRON_SHELL_BROWSER_ELECTRON_AUTOFILL_DRIVER_H_
diff --git a/shell/browser/electron_autofill_driver_factory.h b/shell/browser/electron_autofill_driver_factory.h
index 2c0a53afa52..6de143613a9 100644
--- a/shell/browser/electron_autofill_driver_factory.h
+++ b/shell/browser/electron_autofill_driver_factory.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_ELECTRON_AUTOFILL_DRIVER_FACTORY_H_
-#define SHELL_BROWSER_ELECTRON_AUTOFILL_DRIVER_FACTORY_H_
+#ifndef ELECTRON_SHELL_BROWSER_ELECTRON_AUTOFILL_DRIVER_FACTORY_H_
+#define ELECTRON_SHELL_BROWSER_ELECTRON_AUTOFILL_DRIVER_FACTORY_H_
 
 #include <memory>
 #include <unordered_map>
@@ -55,4 +55,4 @@ class AutofillDriverFactory
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_ELECTRON_AUTOFILL_DRIVER_FACTORY_H_
+#endif  // ELECTRON_SHELL_BROWSER_ELECTRON_AUTOFILL_DRIVER_FACTORY_H_
diff --git a/shell/browser/electron_browser_client.h b/shell/browser/electron_browser_client.h
index 9a0db8b6fc6..f8b20c051de 100644
--- a/shell/browser/electron_browser_client.h
+++ b/shell/browser/electron_browser_client.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_ELECTRON_BROWSER_CLIENT_H_
-#define SHELL_BROWSER_ELECTRON_BROWSER_CLIENT_H_
+#ifndef ELECTRON_SHELL_BROWSER_ELECTRON_BROWSER_CLIENT_H_
+#define ELECTRON_SHELL_BROWSER_ELECTRON_BROWSER_CLIENT_H_
 
 #include <map>
 #include <memory>
@@ -326,4 +326,4 @@ class ElectronBrowserClient : public content::ContentBrowserClient,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_ELECTRON_BROWSER_CLIENT_H_
+#endif  // ELECTRON_SHELL_BROWSER_ELECTRON_BROWSER_CLIENT_H_
diff --git a/shell/browser/electron_browser_context.h b/shell/browser/electron_browser_context.h
index 6ad18c82ee8..3a646aad02c 100644
--- a/shell/browser/electron_browser_context.h
+++ b/shell/browser/electron_browser_context.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_ELECTRON_BROWSER_CONTEXT_H_
-#define SHELL_BROWSER_ELECTRON_BROWSER_CONTEXT_H_
+#ifndef ELECTRON_SHELL_BROWSER_ELECTRON_BROWSER_CONTEXT_H_
+#define ELECTRON_SHELL_BROWSER_ELECTRON_BROWSER_CONTEXT_H_
 
 #include <map>
 #include <memory>
@@ -192,4 +192,4 @@ class ElectronBrowserContext : public content::BrowserContext {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_ELECTRON_BROWSER_CONTEXT_H_
+#endif  // ELECTRON_SHELL_BROWSER_ELECTRON_BROWSER_CONTEXT_H_
diff --git a/shell/browser/electron_browser_handler_impl.h b/shell/browser/electron_browser_handler_impl.h
index 7bf62a4c5f9..f37cd56b7cd 100644
--- a/shell/browser/electron_browser_handler_impl.h
+++ b/shell/browser/electron_browser_handler_impl.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_ELECTRON_BROWSER_HANDLER_IMPL_H_
-#define SHELL_BROWSER_ELECTRON_BROWSER_HANDLER_IMPL_H_
+#ifndef ELECTRON_SHELL_BROWSER_ELECTRON_BROWSER_HANDLER_IMPL_H_
+#define ELECTRON_SHELL_BROWSER_ELECTRON_BROWSER_HANDLER_IMPL_H_
 
 #include <string>
 #include <vector>
@@ -80,4 +80,4 @@ class ElectronBrowserHandlerImpl : public mojom::ElectronBrowser,
   base::WeakPtrFactory<ElectronBrowserHandlerImpl> weak_factory_{this};
 };
 }  // namespace electron
-#endif  // SHELL_BROWSER_ELECTRON_BROWSER_HANDLER_IMPL_H_
+#endif  // ELECTRON_SHELL_BROWSER_ELECTRON_BROWSER_HANDLER_IMPL_H_
diff --git a/shell/browser/electron_browser_main_parts.h b/shell/browser/electron_browser_main_parts.h
index 43bcb75c5a8..321949ee7e8 100644
--- a/shell/browser/electron_browser_main_parts.h
+++ b/shell/browser/electron_browser_main_parts.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_ELECTRON_BROWSER_MAIN_PARTS_H_
-#define SHELL_BROWSER_ELECTRON_BROWSER_MAIN_PARTS_H_
+#ifndef ELECTRON_SHELL_BROWSER_ELECTRON_BROWSER_MAIN_PARTS_H_
+#define ELECTRON_SHELL_BROWSER_ELECTRON_BROWSER_MAIN_PARTS_H_
 
 #include <memory>
 #include <string>
@@ -183,4 +183,4 @@ class ElectronBrowserMainParts : public content::BrowserMainParts {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_ELECTRON_BROWSER_MAIN_PARTS_H_
+#endif  // ELECTRON_SHELL_BROWSER_ELECTRON_BROWSER_MAIN_PARTS_H_
diff --git a/shell/browser/electron_download_manager_delegate.h b/shell/browser/electron_download_manager_delegate.h
index 27539882052..e3100e54e5f 100644
--- a/shell/browser/electron_download_manager_delegate.h
+++ b/shell/browser/electron_download_manager_delegate.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_ELECTRON_DOWNLOAD_MANAGER_DELEGATE_H_
-#define SHELL_BROWSER_ELECTRON_DOWNLOAD_MANAGER_DELEGATE_H_
+#ifndef ELECTRON_SHELL_BROWSER_ELECTRON_DOWNLOAD_MANAGER_DELEGATE_H_
+#define ELECTRON_SHELL_BROWSER_ELECTRON_DOWNLOAD_MANAGER_DELEGATE_H_
 
 #include "base/memory/weak_ptr.h"
 #include "content/public/browser/download_manager_delegate.h"
@@ -64,4 +64,4 @@ class ElectronDownloadManagerDelegate
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_ELECTRON_DOWNLOAD_MANAGER_DELEGATE_H_
+#endif  // ELECTRON_SHELL_BROWSER_ELECTRON_DOWNLOAD_MANAGER_DELEGATE_H_
diff --git a/shell/browser/electron_gpu_client.h b/shell/browser/electron_gpu_client.h
index 18799c6f772..e87accfa726 100644
--- a/shell/browser/electron_gpu_client.h
+++ b/shell/browser/electron_gpu_client.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_ELECTRON_GPU_CLIENT_H_
-#define SHELL_BROWSER_ELECTRON_GPU_CLIENT_H_
+#ifndef ELECTRON_SHELL_BROWSER_ELECTRON_GPU_CLIENT_H_
+#define ELECTRON_SHELL_BROWSER_ELECTRON_GPU_CLIENT_H_
 
 #include "content/public/gpu/content_gpu_client.h"
 
@@ -23,4 +23,4 @@ class ElectronGpuClient : public content::ContentGpuClient {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_ELECTRON_GPU_CLIENT_H_
+#endif  // ELECTRON_SHELL_BROWSER_ELECTRON_GPU_CLIENT_H_
diff --git a/shell/browser/electron_javascript_dialog_manager.h b/shell/browser/electron_javascript_dialog_manager.h
index e36778696ba..42e29d9e40e 100644
--- a/shell/browser/electron_javascript_dialog_manager.h
+++ b/shell/browser/electron_javascript_dialog_manager.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_ELECTRON_JAVASCRIPT_DIALOG_MANAGER_H_
-#define SHELL_BROWSER_ELECTRON_JAVASCRIPT_DIALOG_MANAGER_H_
+#ifndef ELECTRON_SHELL_BROWSER_ELECTRON_JAVASCRIPT_DIALOG_MANAGER_H_
+#define ELECTRON_SHELL_BROWSER_ELECTRON_JAVASCRIPT_DIALOG_MANAGER_H_
 
 #include <map>
 #include <string>
@@ -48,4 +48,4 @@ class ElectronJavaScriptDialogManager
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_ELECTRON_JAVASCRIPT_DIALOG_MANAGER_H_
+#endif  // ELECTRON_SHELL_BROWSER_ELECTRON_JAVASCRIPT_DIALOG_MANAGER_H_
diff --git a/shell/browser/electron_navigation_throttle.h b/shell/browser/electron_navigation_throttle.h
index 09d41619bda..5d1f5b9fea4 100644
--- a/shell/browser/electron_navigation_throttle.h
+++ b/shell/browser/electron_navigation_throttle.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_ELECTRON_NAVIGATION_THROTTLE_H_
-#define SHELL_BROWSER_ELECTRON_NAVIGATION_THROTTLE_H_
+#ifndef ELECTRON_SHELL_BROWSER_ELECTRON_NAVIGATION_THROTTLE_H_
+#define ELECTRON_SHELL_BROWSER_ELECTRON_NAVIGATION_THROTTLE_H_
 
 #include "content/public/browser/navigation_throttle.h"
 
@@ -29,4 +29,4 @@ class ElectronNavigationThrottle : public content::NavigationThrottle {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_ELECTRON_NAVIGATION_THROTTLE_H_
+#endif  // ELECTRON_SHELL_BROWSER_ELECTRON_NAVIGATION_THROTTLE_H_
diff --git a/shell/browser/electron_pdf_web_contents_helper_client.h b/shell/browser/electron_pdf_web_contents_helper_client.h
index 258e006fd1b..22a5a203cbf 100644
--- a/shell/browser/electron_pdf_web_contents_helper_client.h
+++ b/shell/browser/electron_pdf_web_contents_helper_client.h
@@ -1,8 +1,8 @@
 // Copyright (c) 2015 Slack Technologies, Inc.
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
-#ifndef SHELL_BROWSER_ELECTRON_PDF_WEB_CONTENTS_HELPER_CLIENT_H_
-#define SHELL_BROWSER_ELECTRON_PDF_WEB_CONTENTS_HELPER_CLIENT_H_
+#ifndef ELECTRON_SHELL_BROWSER_ELECTRON_PDF_WEB_CONTENTS_HELPER_CLIENT_H_
+#define ELECTRON_SHELL_BROWSER_ELECTRON_PDF_WEB_CONTENTS_HELPER_CLIENT_H_
 
 #include "components/pdf/browser/pdf_web_contents_helper_client.h"
 
@@ -25,4 +25,4 @@ class ElectronPDFWebContentsHelperClient
   void SetPluginCanSave(content::WebContents* contents, bool can_save) override;
 };
 
-#endif  // SHELL_BROWSER_ELECTRON_PDF_WEB_CONTENTS_HELPER_CLIENT_H_
+#endif  // ELECTRON_SHELL_BROWSER_ELECTRON_PDF_WEB_CONTENTS_HELPER_CLIENT_H_
diff --git a/shell/browser/electron_permission_manager.h b/shell/browser/electron_permission_manager.h
index 7db062182e5..38cedf2ebfd 100644
--- a/shell/browser/electron_permission_manager.h
+++ b/shell/browser/electron_permission_manager.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_ELECTRON_PERMISSION_MANAGER_H_
-#define SHELL_BROWSER_ELECTRON_PERMISSION_MANAGER_H_
+#ifndef ELECTRON_SHELL_BROWSER_ELECTRON_PERMISSION_MANAGER_H_
+#define ELECTRON_SHELL_BROWSER_ELECTRON_PERMISSION_MANAGER_H_
 
 #include <memory>
 #include <vector>
@@ -135,4 +135,4 @@ class ElectronPermissionManager : public content::PermissionControllerDelegate {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_ELECTRON_PERMISSION_MANAGER_H_
+#endif  // ELECTRON_SHELL_BROWSER_ELECTRON_PERMISSION_MANAGER_H_
diff --git a/shell/browser/electron_quota_permission_context.h b/shell/browser/electron_quota_permission_context.h
index 5c9b5e616ba..219a8e57ffd 100644
--- a/shell/browser/electron_quota_permission_context.h
+++ b/shell/browser/electron_quota_permission_context.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_ELECTRON_QUOTA_PERMISSION_CONTEXT_H_
-#define SHELL_BROWSER_ELECTRON_QUOTA_PERMISSION_CONTEXT_H_
+#ifndef ELECTRON_SHELL_BROWSER_ELECTRON_QUOTA_PERMISSION_CONTEXT_H_
+#define ELECTRON_SHELL_BROWSER_ELECTRON_QUOTA_PERMISSION_CONTEXT_H_
 
 #include "content/public/browser/quota_permission_context.h"
 
@@ -36,4 +36,4 @@ class ElectronQuotaPermissionContext : public content::QuotaPermissionContext {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_ELECTRON_QUOTA_PERMISSION_CONTEXT_H_
+#endif  // ELECTRON_SHELL_BROWSER_ELECTRON_QUOTA_PERMISSION_CONTEXT_H_
diff --git a/shell/browser/electron_speech_recognition_manager_delegate.h b/shell/browser/electron_speech_recognition_manager_delegate.h
index 923a0d2c5c9..a65524191a9 100644
--- a/shell/browser/electron_speech_recognition_manager_delegate.h
+++ b/shell/browser/electron_speech_recognition_manager_delegate.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_ELECTRON_SPEECH_RECOGNITION_MANAGER_DELEGATE_H_
-#define SHELL_BROWSER_ELECTRON_SPEECH_RECOGNITION_MANAGER_DELEGATE_H_
+#ifndef ELECTRON_SHELL_BROWSER_ELECTRON_SPEECH_RECOGNITION_MANAGER_DELEGATE_H_
+#define ELECTRON_SHELL_BROWSER_ELECTRON_SPEECH_RECOGNITION_MANAGER_DELEGATE_H_
 
 #include <vector>
 
@@ -54,4 +54,4 @@ class ElectronSpeechRecognitionManagerDelegate
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_ELECTRON_SPEECH_RECOGNITION_MANAGER_DELEGATE_H_
+#endif  // ELECTRON_SHELL_BROWSER_ELECTRON_SPEECH_RECOGNITION_MANAGER_DELEGATE_H_
diff --git a/shell/browser/electron_web_ui_controller_factory.h b/shell/browser/electron_web_ui_controller_factory.h
index 95fa58034b2..cbf2232e62e 100644
--- a/shell/browser/electron_web_ui_controller_factory.h
+++ b/shell/browser/electron_web_ui_controller_factory.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_ELECTRON_WEB_UI_CONTROLLER_FACTORY_H_
-#define SHELL_BROWSER_ELECTRON_WEB_UI_CONTROLLER_FACTORY_H_
+#ifndef ELECTRON_SHELL_BROWSER_ELECTRON_WEB_UI_CONTROLLER_FACTORY_H_
+#define ELECTRON_SHELL_BROWSER_ELECTRON_WEB_UI_CONTROLLER_FACTORY_H_
 
 #include <memory>
 
@@ -44,4 +44,4 @@ class ElectronWebUIControllerFactory : public content::WebUIControllerFactory {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_ELECTRON_WEB_UI_CONTROLLER_FACTORY_H_
+#endif  // ELECTRON_SHELL_BROWSER_ELECTRON_WEB_UI_CONTROLLER_FACTORY_H_
diff --git a/shell/browser/event_emitter_mixin.h b/shell/browser/event_emitter_mixin.h
index 3ed4a5be6a0..101e4d5e459 100644
--- a/shell/browser/event_emitter_mixin.h
+++ b/shell/browser/event_emitter_mixin.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_EVENT_EMITTER_MIXIN_H_
-#define SHELL_BROWSER_EVENT_EMITTER_MIXIN_H_
+#ifndef ELECTRON_SHELL_BROWSER_EVENT_EMITTER_MIXIN_H_
+#define ELECTRON_SHELL_BROWSER_EVENT_EMITTER_MIXIN_H_
 
 #include <utility>
 
@@ -95,4 +95,4 @@ class EventEmitterMixin {
 
 }  // namespace gin_helper
 
-#endif  // SHELL_BROWSER_EVENT_EMITTER_MIXIN_H_
+#endif  // ELECTRON_SHELL_BROWSER_EVENT_EMITTER_MIXIN_H_
diff --git a/shell/browser/extended_web_contents_observer.h b/shell/browser/extended_web_contents_observer.h
index f0a91a8b2ab..2d72a12c49c 100644
--- a/shell/browser/extended_web_contents_observer.h
+++ b/shell/browser/extended_web_contents_observer.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_EXTENDED_WEB_CONTENTS_OBSERVER_H_
-#define SHELL_BROWSER_EXTENDED_WEB_CONTENTS_OBSERVER_H_
+#ifndef ELECTRON_SHELL_BROWSER_EXTENDED_WEB_CONTENTS_OBSERVER_H_
+#define ELECTRON_SHELL_BROWSER_EXTENDED_WEB_CONTENTS_OBSERVER_H_
 
 #include <string>
 #include <vector>
@@ -33,4 +33,4 @@ class ExtendedWebContentsObserver : public base::CheckedObserver {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_EXTENDED_WEB_CONTENTS_OBSERVER_H_
+#endif  // ELECTRON_SHELL_BROWSER_EXTENDED_WEB_CONTENTS_OBSERVER_H_
diff --git a/shell/browser/extensions/api/cryptotoken_private/cryptotoken_private_api.h b/shell/browser/extensions/api/cryptotoken_private/cryptotoken_private_api.h
index c57b4779fa1..4b4dd509e13 100644
--- a/shell/browser/extensions/api/cryptotoken_private/cryptotoken_private_api.h
+++ b/shell/browser/extensions/api/cryptotoken_private/cryptotoken_private_api.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_EXTENSIONS_API_CRYPTOTOKEN_PRIVATE_CRYPTOTOKEN_PRIVATE_API_H_
-#define SHELL_BROWSER_EXTENSIONS_API_CRYPTOTOKEN_PRIVATE_CRYPTOTOKEN_PRIVATE_API_H_
+#ifndef ELECTRON_SHELL_BROWSER_EXTENSIONS_API_CRYPTOTOKEN_PRIVATE_CRYPTOTOKEN_PRIVATE_API_H_
+#define ELECTRON_SHELL_BROWSER_EXTENSIONS_API_CRYPTOTOKEN_PRIVATE_CRYPTOTOKEN_PRIVATE_API_H_
 
 #include "chrome/common/extensions/api/cryptotoken_private.h"
 #include "extensions/browser/extension_function.h"
@@ -83,4 +83,4 @@ class CryptotokenPrivateRecordSignRequestFunction : public ExtensionFunction {
 }  // namespace api
 }  // namespace extensions
 
-#endif  // SHELL_BROWSER_EXTENSIONS_API_CRYPTOTOKEN_PRIVATE_CRYPTOTOKEN_PRIVATE_API_H_
+#endif  // ELECTRON_SHELL_BROWSER_EXTENSIONS_API_CRYPTOTOKEN_PRIVATE_CRYPTOTOKEN_PRIVATE_API_H_
diff --git a/shell/browser/extensions/api/i18n/i18n_api.h b/shell/browser/extensions/api/i18n/i18n_api.h
index 20374516ea4..7744b7edd70 100644
--- a/shell/browser/extensions/api/i18n/i18n_api.h
+++ b/shell/browser/extensions/api/i18n/i18n_api.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_EXTENSIONS_API_I18N_I18N_API_H_
-#define SHELL_BROWSER_EXTENSIONS_API_I18N_I18N_API_H_
+#ifndef ELECTRON_SHELL_BROWSER_EXTENSIONS_API_I18N_I18N_API_H_
+#define ELECTRON_SHELL_BROWSER_EXTENSIONS_API_I18N_I18N_API_H_
 
 #include "extensions/browser/extension_function.h"
 
@@ -17,4 +17,4 @@ class I18nGetAcceptLanguagesFunction : public ExtensionFunction {
 
 }  // namespace extensions
 
-#endif  // SHELL_BROWSER_EXTENSIONS_API_I18N_I18N_API_H_
+#endif  // ELECTRON_SHELL_BROWSER_EXTENSIONS_API_I18N_I18N_API_H_
diff --git a/shell/browser/extensions/api/management/electron_management_api_delegate.h b/shell/browser/extensions/api/management/electron_management_api_delegate.h
index 2a066b0cfc4..9425d4eaed7 100644
--- a/shell/browser/extensions/api/management/electron_management_api_delegate.h
+++ b/shell/browser/extensions/api/management/electron_management_api_delegate.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_EXTENSIONS_API_MANAGEMENT_ELECTRON_MANAGEMENT_API_DELEGATE_H_
-#define SHELL_BROWSER_EXTENSIONS_API_MANAGEMENT_ELECTRON_MANAGEMENT_API_DELEGATE_H_
+#ifndef ELECTRON_SHELL_BROWSER_EXTENSIONS_API_MANAGEMENT_ELECTRON_MANAGEMENT_API_DELEGATE_H_
+#define ELECTRON_SHELL_BROWSER_EXTENSIONS_API_MANAGEMENT_ELECTRON_MANAGEMENT_API_DELEGATE_H_
 
 #include <memory>
 #include <string>
@@ -85,4 +85,4 @@ class ElectronManagementAPIDelegate : public extensions::ManagementAPIDelegate {
                              content::BrowserContext* context) const override;
 };
 
-#endif  // SHELL_BROWSER_EXTENSIONS_API_MANAGEMENT_ELECTRON_MANAGEMENT_API_DELEGATE_H_
+#endif  // ELECTRON_SHELL_BROWSER_EXTENSIONS_API_MANAGEMENT_ELECTRON_MANAGEMENT_API_DELEGATE_H_
diff --git a/shell/browser/extensions/api/resources_private/resources_private_api.h b/shell/browser/extensions/api/resources_private/resources_private_api.h
index 75e5ec27a48..99a167c8956 100644
--- a/shell/browser/extensions/api/resources_private/resources_private_api.h
+++ b/shell/browser/extensions/api/resources_private/resources_private_api.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_EXTENSIONS_API_RESOURCES_PRIVATE_RESOURCES_PRIVATE_API_H_
-#define SHELL_BROWSER_EXTENSIONS_API_RESOURCES_PRIVATE_RESOURCES_PRIVATE_API_H_
+#ifndef ELECTRON_SHELL_BROWSER_EXTENSIONS_API_RESOURCES_PRIVATE_RESOURCES_PRIVATE_API_H_
+#define ELECTRON_SHELL_BROWSER_EXTENSIONS_API_RESOURCES_PRIVATE_RESOURCES_PRIVATE_API_H_
 
 #include "extensions/browser/extension_function.h"
 
@@ -30,4 +30,4 @@ class ResourcesPrivateGetStringsFunction : public ExtensionFunction {
 
 }  // namespace extensions
 
-#endif  // SHELL_BROWSER_EXTENSIONS_API_RESOURCES_PRIVATE_RESOURCES_PRIVATE_API_H_
+#endif  // ELECTRON_SHELL_BROWSER_EXTENSIONS_API_RESOURCES_PRIVATE_RESOURCES_PRIVATE_API_H_
diff --git a/shell/browser/extensions/api/runtime/electron_runtime_api_delegate.h b/shell/browser/extensions/api/runtime/electron_runtime_api_delegate.h
index 834a90ca3f7..8d167c60f13 100644
--- a/shell/browser/extensions/api/runtime/electron_runtime_api_delegate.h
+++ b/shell/browser/extensions/api/runtime/electron_runtime_api_delegate.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_EXTENSIONS_API_RUNTIME_ELECTRON_RUNTIME_API_DELEGATE_H_
-#define SHELL_BROWSER_EXTENSIONS_API_RUNTIME_ELECTRON_RUNTIME_API_DELEGATE_H_
+#ifndef ELECTRON_SHELL_BROWSER_EXTENSIONS_API_RUNTIME_ELECTRON_RUNTIME_API_DELEGATE_H_
+#define ELECTRON_SHELL_BROWSER_EXTENSIONS_API_RUNTIME_ELECTRON_RUNTIME_API_DELEGATE_H_
 
 #include <string>
 
@@ -41,4 +41,4 @@ class ElectronRuntimeAPIDelegate : public RuntimeAPIDelegate {
 
 }  // namespace extensions
 
-#endif  // SHELL_BROWSER_EXTENSIONS_API_RUNTIME_ELECTRON_RUNTIME_API_DELEGATE_H_
+#endif  // ELECTRON_SHELL_BROWSER_EXTENSIONS_API_RUNTIME_ELECTRON_RUNTIME_API_DELEGATE_H_
diff --git a/shell/browser/extensions/api/streams_private/streams_private_api.h b/shell/browser/extensions/api/streams_private/streams_private_api.h
index 893fc9daf07..b5c6e573c4d 100644
--- a/shell/browser/extensions/api/streams_private/streams_private_api.h
+++ b/shell/browser/extensions/api/streams_private/streams_private_api.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_EXTENSIONS_API_STREAMS_PRIVATE_STREAMS_PRIVATE_API_H_
-#define SHELL_BROWSER_EXTENSIONS_API_STREAMS_PRIVATE_STREAMS_PRIVATE_API_H_
+#ifndef ELECTRON_SHELL_BROWSER_EXTENSIONS_API_STREAMS_PRIVATE_STREAMS_PRIVATE_API_H_
+#define ELECTRON_SHELL_BROWSER_EXTENSIONS_API_STREAMS_PRIVATE_STREAMS_PRIVATE_API_H_
 
 #include <string>
 
@@ -39,4 +39,4 @@ class StreamsPrivateAPI {
 
 }  // namespace extensions
 
-#endif  // SHELL_BROWSER_EXTENSIONS_API_STREAMS_PRIVATE_STREAMS_PRIVATE_API_H_
+#endif  // ELECTRON_SHELL_BROWSER_EXTENSIONS_API_STREAMS_PRIVATE_STREAMS_PRIVATE_API_H_
diff --git a/shell/browser/extensions/api/tabs/tabs_api.h b/shell/browser/extensions/api/tabs/tabs_api.h
index 6a41748db1e..f6078610d13 100644
--- a/shell/browser/extensions/api/tabs/tabs_api.h
+++ b/shell/browser/extensions/api/tabs/tabs_api.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_EXTENSIONS_API_TABS_TABS_API_H_
-#define SHELL_BROWSER_EXTENSIONS_API_TABS_TABS_API_H_
+#ifndef ELECTRON_SHELL_BROWSER_EXTENSIONS_API_TABS_TABS_API_H_
+#define ELECTRON_SHELL_BROWSER_EXTENSIONS_API_TABS_TABS_API_H_
 
 #include <string>
 
@@ -109,4 +109,4 @@ class TabsUpdateFunction : public ExtensionFunction {
 };
 }  // namespace extensions
 
-#endif  // SHELL_BROWSER_EXTENSIONS_API_TABS_TABS_API_H_
+#endif  // ELECTRON_SHELL_BROWSER_EXTENSIONS_API_TABS_TABS_API_H_
diff --git a/shell/browser/extensions/electron_browser_context_keyed_service_factories.h b/shell/browser/extensions/electron_browser_context_keyed_service_factories.h
index 3ac39a587aa..7e9707d9cac 100644
--- a/shell/browser/extensions/electron_browser_context_keyed_service_factories.h
+++ b/shell/browser/extensions/electron_browser_context_keyed_service_factories.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_EXTENSIONS_ELECTRON_BROWSER_CONTEXT_KEYED_SERVICE_FACTORIES_H_
-#define SHELL_BROWSER_EXTENSIONS_ELECTRON_BROWSER_CONTEXT_KEYED_SERVICE_FACTORIES_H_
+#ifndef ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_BROWSER_CONTEXT_KEYED_SERVICE_FACTORIES_H_
+#define ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_BROWSER_CONTEXT_KEYED_SERVICE_FACTORIES_H_
 
 namespace extensions {
 namespace electron {
@@ -15,4 +15,4 @@ void EnsureBrowserContextKeyedServiceFactoriesBuilt();
 }  // namespace electron
 }  // namespace extensions
 
-#endif  // SHELL_BROWSER_EXTENSIONS_ELECTRON_BROWSER_CONTEXT_KEYED_SERVICE_FACTORIES_H_
+#endif  // ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_BROWSER_CONTEXT_KEYED_SERVICE_FACTORIES_H_
diff --git a/shell/browser/extensions/electron_component_extension_resource_manager.h b/shell/browser/extensions/electron_component_extension_resource_manager.h
index f6b8f4db4b3..2dd4de3a58b 100644
--- a/shell/browser/extensions/electron_component_extension_resource_manager.h
+++ b/shell/browser/extensions/electron_component_extension_resource_manager.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_EXTENSIONS_ELECTRON_COMPONENT_EXTENSION_RESOURCE_MANAGER_H_
-#define SHELL_BROWSER_EXTENSIONS_ELECTRON_COMPONENT_EXTENSION_RESOURCE_MANAGER_H_
+#ifndef ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_COMPONENT_EXTENSION_RESOURCE_MANAGER_H_
+#define ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_COMPONENT_EXTENSION_RESOURCE_MANAGER_H_
 
 #include <stddef.h>
 
@@ -52,4 +52,4 @@ class ElectronComponentExtensionResourceManager
 
 }  // namespace extensions
 
-#endif  // SHELL_BROWSER_EXTENSIONS_ELECTRON_COMPONENT_EXTENSION_RESOURCE_MANAGER_H_
+#endif  // ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_COMPONENT_EXTENSION_RESOURCE_MANAGER_H_
diff --git a/shell/browser/extensions/electron_display_info_provider.h b/shell/browser/extensions/electron_display_info_provider.h
index c0b05e7ae0d..ebdca9534c7 100644
--- a/shell/browser/extensions/electron_display_info_provider.h
+++ b/shell/browser/extensions/electron_display_info_provider.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_EXTENSIONS_ELECTRON_DISPLAY_INFO_PROVIDER_H_
-#define SHELL_BROWSER_EXTENSIONS_ELECTRON_DISPLAY_INFO_PROVIDER_H_
+#ifndef ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_DISPLAY_INFO_PROVIDER_H_
+#define ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_DISPLAY_INFO_PROVIDER_H_
 
 #include "extensions/browser/api/system_display/display_info_provider.h"
 
@@ -21,4 +21,4 @@ class ElectronDisplayInfoProvider : public DisplayInfoProvider {
 
 }  // namespace extensions
 
-#endif  // SHELL_BROWSER_EXTENSIONS_ELECTRON_DISPLAY_INFO_PROVIDER_H_
+#endif  // ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_DISPLAY_INFO_PROVIDER_H_
diff --git a/shell/browser/extensions/electron_extension_host_delegate.h b/shell/browser/extensions/electron_extension_host_delegate.h
index 5b500fd9b6e..5c1f8761b6d 100644
--- a/shell/browser/extensions/electron_extension_host_delegate.h
+++ b/shell/browser/extensions/electron_extension_host_delegate.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_HOST_DELEGATE_H_
-#define SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_HOST_DELEGATE_H_
+#ifndef ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_HOST_DELEGATE_H_
+#define ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_HOST_DELEGATE_H_
 
 #include <memory>
 #include <string>
@@ -49,4 +49,4 @@ class ElectronExtensionHostDelegate : public ExtensionHostDelegate {
 
 }  // namespace extensions
 
-#endif  // SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_HOST_DELEGATE_H_
+#endif  // ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_HOST_DELEGATE_H_
diff --git a/shell/browser/extensions/electron_extension_loader.h b/shell/browser/extensions/electron_extension_loader.h
index c86fb5d957d..dc4d04ea4d9 100644
--- a/shell/browser/extensions/electron_extension_loader.h
+++ b/shell/browser/extensions/electron_extension_loader.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_LOADER_H_
-#define SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_LOADER_H_
+#ifndef ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_LOADER_H_
+#define ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_LOADER_H_
 
 #include <string>
 #include <utility>
@@ -98,4 +98,4 @@ class ElectronExtensionLoader : public ExtensionRegistrar::Delegate {
 
 }  // namespace extensions
 
-#endif  // SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_LOADER_H_
+#endif  // ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_LOADER_H_
diff --git a/shell/browser/extensions/electron_extension_message_filter.h b/shell/browser/extensions/electron_extension_message_filter.h
index 7272058f4bc..25d11dd7647 100644
--- a/shell/browser/extensions/electron_extension_message_filter.h
+++ b/shell/browser/extensions/electron_extension_message_filter.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_MESSAGE_FILTER_H_
-#define SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_MESSAGE_FILTER_H_
+#ifndef ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_MESSAGE_FILTER_H_
+#define ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_MESSAGE_FILTER_H_
 
 #include <string>
 #include <vector>
@@ -68,4 +68,4 @@ class ElectronExtensionMessageFilter : public content::BrowserMessageFilter {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_MESSAGE_FILTER_H_
+#endif  // ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_MESSAGE_FILTER_H_
diff --git a/shell/browser/extensions/electron_extension_system.h b/shell/browser/extensions/electron_extension_system.h
index e5e565faa33..971f8df4929 100644
--- a/shell/browser/extensions/electron_extension_system.h
+++ b/shell/browser/extensions/electron_extension_system.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_SYSTEM_H_
-#define SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_SYSTEM_H_
+#ifndef ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_SYSTEM_H_
+#define ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_SYSTEM_H_
 
 #include <memory>
 #include <string>
@@ -122,4 +122,4 @@ class ElectronExtensionSystem : public ExtensionSystem {
 
 }  // namespace extensions
 
-#endif  // SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_SYSTEM_H_
+#endif  // ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_SYSTEM_H_
diff --git a/shell/browser/extensions/electron_extension_system_factory.h b/shell/browser/extensions/electron_extension_system_factory.h
index f09486c52c1..144d96f344d 100644
--- a/shell/browser/extensions/electron_extension_system_factory.h
+++ b/shell/browser/extensions/electron_extension_system_factory.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_SYSTEM_FACTORY_H_
-#define SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_SYSTEM_FACTORY_H_
+#ifndef ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_SYSTEM_FACTORY_H_
+#define ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_SYSTEM_FACTORY_H_
 
 #include "base/memory/singleton.h"
 #include "extensions/browser/extension_system_provider.h"
@@ -41,4 +41,4 @@ class ElectronExtensionSystemFactory : public ExtensionSystemProvider {
 
 }  // namespace extensions
 
-#endif  // SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_SYSTEM_FACTORY_H_
+#endif  // ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_SYSTEM_FACTORY_H_
diff --git a/shell/browser/extensions/electron_extension_web_contents_observer.h b/shell/browser/extensions/electron_extension_web_contents_observer.h
index 136178645cc..15c92fa4700 100644
--- a/shell/browser/extensions/electron_extension_web_contents_observer.h
+++ b/shell/browser/extensions/electron_extension_web_contents_observer.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_WEB_CONTENTS_OBSERVER_H_
-#define SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_WEB_CONTENTS_OBSERVER_H_
+#ifndef ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_WEB_CONTENTS_OBSERVER_H_
+#define ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_WEB_CONTENTS_OBSERVER_H_
 
 #include "content/public/browser/web_contents_user_data.h"
 #include "extensions/browser/extension_web_contents_observer.h"
@@ -40,4 +40,4 @@ class ElectronExtensionWebContentsObserver
 
 }  // namespace extensions
 
-#endif  // SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_WEB_CONTENTS_OBSERVER_H_
+#endif  // ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSION_WEB_CONTENTS_OBSERVER_H_
diff --git a/shell/browser/extensions/electron_extensions_api_client.h b/shell/browser/extensions/electron_extensions_api_client.h
index a389ec5fa54..c2fd6c3add3 100644
--- a/shell/browser/extensions/electron_extensions_api_client.h
+++ b/shell/browser/extensions/electron_extensions_api_client.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSIONS_API_CLIENT_H_
-#define SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSIONS_API_CLIENT_H_
+#ifndef ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSIONS_API_CLIENT_H_
+#define ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSIONS_API_CLIENT_H_
 
 #include <memory>
 
@@ -36,4 +36,4 @@ class ElectronExtensionsAPIClient : public ExtensionsAPIClient {
 
 }  // namespace extensions
 
-#endif  // SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSIONS_API_CLIENT_H_
+#endif  // ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSIONS_API_CLIENT_H_
diff --git a/shell/browser/extensions/electron_extensions_browser_api_provider.h b/shell/browser/extensions/electron_extensions_browser_api_provider.h
index 1c48e31acc6..5f938dfac79 100644
--- a/shell/browser/extensions/electron_extensions_browser_api_provider.h
+++ b/shell/browser/extensions/electron_extensions_browser_api_provider.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSIONS_BROWSER_API_PROVIDER_H_
-#define SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSIONS_BROWSER_API_PROVIDER_H_
+#ifndef ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSIONS_BROWSER_API_PROVIDER_H_
+#define ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSIONS_BROWSER_API_PROVIDER_H_
 
 #include "extensions/browser/extensions_browser_api_provider.h"
 
@@ -26,4 +26,4 @@ class ElectronExtensionsBrowserAPIProvider
 
 }  // namespace extensions
 
-#endif  // SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSIONS_BROWSER_API_PROVIDER_H_
+#endif  // ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSIONS_BROWSER_API_PROVIDER_H_
diff --git a/shell/browser/extensions/electron_extensions_browser_client.h b/shell/browser/extensions/electron_extensions_browser_client.h
index 32454d28a3f..aaee2bd9845 100644
--- a/shell/browser/extensions/electron_extensions_browser_client.h
+++ b/shell/browser/extensions/electron_extensions_browser_client.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSIONS_BROWSER_CLIENT_H_
-#define SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSIONS_BROWSER_CLIENT_H_
+#ifndef ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSIONS_BROWSER_CLIENT_H_
+#define ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSIONS_BROWSER_CLIENT_H_
 
 #include <memory>
 #include <string>
@@ -147,4 +147,4 @@ class ElectronExtensionsBrowserClient
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSIONS_BROWSER_CLIENT_H_
+#endif  // ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_EXTENSIONS_BROWSER_CLIENT_H_
diff --git a/shell/browser/extensions/electron_kiosk_delegate.h b/shell/browser/extensions/electron_kiosk_delegate.h
index 7af05dac451..1173a7046b7 100644
--- a/shell/browser/extensions/electron_kiosk_delegate.h
+++ b/shell/browser/extensions/electron_kiosk_delegate.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_EXTENSIONS_ELECTRON_KIOSK_DELEGATE_H_
-#define SHELL_BROWSER_EXTENSIONS_ELECTRON_KIOSK_DELEGATE_H_
+#ifndef ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_KIOSK_DELEGATE_H_
+#define ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_KIOSK_DELEGATE_H_
 
 #include "extensions/browser/kiosk/kiosk_delegate.h"
 #include "extensions/common/extension_id.h"
@@ -23,4 +23,4 @@ class ElectronKioskDelegate : public extensions::KioskDelegate {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_EXTENSIONS_ELECTRON_KIOSK_DELEGATE_H_
+#endif  // ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_KIOSK_DELEGATE_H_
diff --git a/shell/browser/extensions/electron_messaging_delegate.h b/shell/browser/extensions/electron_messaging_delegate.h
index 6ca38ad5a76..ac82d85ca20 100644
--- a/shell/browser/extensions/electron_messaging_delegate.h
+++ b/shell/browser/extensions/electron_messaging_delegate.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_EXTENSIONS_ELECTRON_MESSAGING_DELEGATE_H_
-#define SHELL_BROWSER_EXTENSIONS_ELECTRON_MESSAGING_DELEGATE_H_
+#ifndef ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_MESSAGING_DELEGATE_H_
+#define ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_MESSAGING_DELEGATE_H_
 
 #include <memory>
 #include <string>
@@ -57,4 +57,4 @@ class ElectronMessagingDelegate : public MessagingDelegate {
 
 }  // namespace extensions
 
-#endif  // SHELL_BROWSER_EXTENSIONS_ELECTRON_MESSAGING_DELEGATE_H_
+#endif  // ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_MESSAGING_DELEGATE_H_
diff --git a/shell/browser/extensions/electron_navigation_ui_data.h b/shell/browser/extensions/electron_navigation_ui_data.h
index 621e50fecbc..c2d75b17e64 100644
--- a/shell/browser/extensions/electron_navigation_ui_data.h
+++ b/shell/browser/extensions/electron_navigation_ui_data.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_EXTENSIONS_ELECTRON_NAVIGATION_UI_DATA_H_
-#define SHELL_BROWSER_EXTENSIONS_ELECTRON_NAVIGATION_UI_DATA_H_
+#ifndef ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_NAVIGATION_UI_DATA_H_
+#define ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_NAVIGATION_UI_DATA_H_
 
 #include <memory>
 
@@ -47,4 +47,4 @@ class ElectronNavigationUIData : public content::NavigationUIData {
 
 }  // namespace extensions
 
-#endif  // SHELL_BROWSER_EXTENSIONS_ELECTRON_NAVIGATION_UI_DATA_H_
+#endif  // ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_NAVIGATION_UI_DATA_H_
diff --git a/shell/browser/extensions/electron_process_manager_delegate.h b/shell/browser/extensions/electron_process_manager_delegate.h
index 8ac2ad378af..f99e18d11fb 100644
--- a/shell/browser/extensions/electron_process_manager_delegate.h
+++ b/shell/browser/extensions/electron_process_manager_delegate.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_EXTENSIONS_ELECTRON_PROCESS_MANAGER_DELEGATE_H_
-#define SHELL_BROWSER_EXTENSIONS_ELECTRON_PROCESS_MANAGER_DELEGATE_H_
+#ifndef ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_PROCESS_MANAGER_DELEGATE_H_
+#define ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_PROCESS_MANAGER_DELEGATE_H_
 
 #include "base/compiler_specific.h"
 #include "content/public/browser/notification_observer.h"
@@ -40,4 +40,4 @@ class ElectronProcessManagerDelegate : public ProcessManagerDelegate {
 
 }  // namespace extensions
 
-#endif  // SHELL_BROWSER_EXTENSIONS_ELECTRON_PROCESS_MANAGER_DELEGATE_H_
+#endif  // ELECTRON_SHELL_BROWSER_EXTENSIONS_ELECTRON_PROCESS_MANAGER_DELEGATE_H_
diff --git a/shell/browser/fake_location_provider.h b/shell/browser/fake_location_provider.h
index 750a50688eb..14ab16070cf 100644
--- a/shell/browser/fake_location_provider.h
+++ b/shell/browser/fake_location_provider.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_FAKE_LOCATION_PROVIDER_H_
-#define SHELL_BROWSER_FAKE_LOCATION_PROVIDER_H_
+#ifndef ELECTRON_SHELL_BROWSER_FAKE_LOCATION_PROVIDER_H_
+#define ELECTRON_SHELL_BROWSER_FAKE_LOCATION_PROVIDER_H_
 
 #include "services/device/public/cpp/geolocation/location_provider.h"
 #include "services/device/public/mojom/geoposition.mojom.h"
@@ -34,4 +34,4 @@ class FakeLocationProvider : public device::LocationProvider {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_FAKE_LOCATION_PROVIDER_H_
+#endif  // ELECTRON_SHELL_BROWSER_FAKE_LOCATION_PROVIDER_H_
diff --git a/shell/browser/feature_list.h b/shell/browser/feature_list.h
index 3464bba213c..cd70456cc2b 100644
--- a/shell/browser/feature_list.h
+++ b/shell/browser/feature_list.h
@@ -2,12 +2,12 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_FEATURE_LIST_H_
-#define SHELL_BROWSER_FEATURE_LIST_H_
+#ifndef ELECTRON_SHELL_BROWSER_FEATURE_LIST_H_
+#define ELECTRON_SHELL_BROWSER_FEATURE_LIST_H_
 
 namespace electron {
 void InitializeFeatureList();
 void InitializeFieldTrials();
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_FEATURE_LIST_H_
+#endif  // ELECTRON_SHELL_BROWSER_FEATURE_LIST_H_
diff --git a/shell/browser/file_select_helper.h b/shell/browser/file_select_helper.h
index e47be4a82cc..3c1e09e7db3 100644
--- a/shell/browser/file_select_helper.h
+++ b/shell/browser/file_select_helper.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_FILE_SELECT_HELPER_H_
-#define SHELL_BROWSER_FILE_SELECT_HELPER_H_
+#ifndef ELECTRON_SHELL_BROWSER_FILE_SELECT_HELPER_H_
+#define ELECTRON_SHELL_BROWSER_FILE_SELECT_HELPER_H_
 
 #include <map>
 #include <memory>
@@ -229,4 +229,4 @@ class FileSelectHelper : public base::RefCountedThreadSafe<
   std::vector<base::FilePath> temporary_files_;
 };
 
-#endif  // SHELL_BROWSER_FILE_SELECT_HELPER_H_
+#endif  // ELECTRON_SHELL_BROWSER_FILE_SELECT_HELPER_H_
diff --git a/shell/browser/font/electron_font_access_delegate.h b/shell/browser/font/electron_font_access_delegate.h
index c29d50d7db9..4cfe7c63650 100644
--- a/shell/browser/font/electron_font_access_delegate.h
+++ b/shell/browser/font/electron_font_access_delegate.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_FONT_ELECTRON_FONT_ACCESS_DELEGATE_H_
-#define SHELL_BROWSER_FONT_ELECTRON_FONT_ACCESS_DELEGATE_H_
+#ifndef ELECTRON_SHELL_BROWSER_FONT_ELECTRON_FONT_ACCESS_DELEGATE_H_
+#define ELECTRON_SHELL_BROWSER_FONT_ELECTRON_FONT_ACCESS_DELEGATE_H_
 
 #include <memory>
 #include <string>
@@ -28,4 +28,4 @@ class ElectronFontAccessDelegate : public content::FontAccessDelegate {
       content::FontAccessChooser::Callback callback) override;
 };
 
-#endif  // SHELL_BROWSER_FONT_ELECTRON_FONT_ACCESS_DELEGATE_H_
+#endif  // ELECTRON_SHELL_BROWSER_FONT_ELECTRON_FONT_ACCESS_DELEGATE_H_
diff --git a/shell/browser/font_defaults.h b/shell/browser/font_defaults.h
index 260c8100441..6d317b0e533 100644
--- a/shell/browser/font_defaults.h
+++ b/shell/browser/font_defaults.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_FONT_DEFAULTS_H_
-#define SHELL_BROWSER_FONT_DEFAULTS_H_
+#ifndef ELECTRON_SHELL_BROWSER_FONT_DEFAULTS_H_
+#define ELECTRON_SHELL_BROWSER_FONT_DEFAULTS_H_
 
 namespace blink {
 namespace web_pref {
@@ -17,4 +17,4 @@ void SetFontDefaults(blink::web_pref::WebPreferences* prefs);
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_FONT_DEFAULTS_H_
+#endif  // ELECTRON_SHELL_BROWSER_FONT_DEFAULTS_H_
diff --git a/shell/browser/hid/electron_hid_delegate.h b/shell/browser/hid/electron_hid_delegate.h
index e4e35d507db..348c32846f3 100644
--- a/shell/browser/hid/electron_hid_delegate.h
+++ b/shell/browser/hid/electron_hid_delegate.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_HID_ELECTRON_HID_DELEGATE_H_
-#define SHELL_BROWSER_HID_ELECTRON_HID_DELEGATE_H_
+#ifndef ELECTRON_SHELL_BROWSER_HID_ELECTRON_HID_DELEGATE_H_
+#define ELECTRON_SHELL_BROWSER_HID_ELECTRON_HID_DELEGATE_H_
 
 #include <memory>
 #include <string>
@@ -81,4 +81,4 @@ class ElectronHidDelegate : public content::HidDelegate,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_HID_ELECTRON_HID_DELEGATE_H_
+#endif  // ELECTRON_SHELL_BROWSER_HID_ELECTRON_HID_DELEGATE_H_
diff --git a/shell/browser/hid/hid_chooser_context.h b/shell/browser/hid/hid_chooser_context.h
index 923f9f99fb8..a9c2f7e1def 100644
--- a/shell/browser/hid/hid_chooser_context.h
+++ b/shell/browser/hid/hid_chooser_context.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_HID_HID_CHOOSER_CONTEXT_H_
-#define SHELL_BROWSER_HID_HID_CHOOSER_CONTEXT_H_
+#ifndef ELECTRON_SHELL_BROWSER_HID_HID_CHOOSER_CONTEXT_H_
+#define ELECTRON_SHELL_BROWSER_HID_HID_CHOOSER_CONTEXT_H_
 
 #include <map>
 #include <memory>
@@ -133,4 +133,4 @@ class HidChooserContext : public KeyedService,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_HID_HID_CHOOSER_CONTEXT_H_
+#endif  // ELECTRON_SHELL_BROWSER_HID_HID_CHOOSER_CONTEXT_H_
diff --git a/shell/browser/hid/hid_chooser_context_factory.h b/shell/browser/hid/hid_chooser_context_factory.h
index 3bd89b807eb..14f444da6d5 100644
--- a/shell/browser/hid/hid_chooser_context_factory.h
+++ b/shell/browser/hid/hid_chooser_context_factory.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_HID_HID_CHOOSER_CONTEXT_FACTORY_H_
-#define SHELL_BROWSER_HID_HID_CHOOSER_CONTEXT_FACTORY_H_
+#ifndef ELECTRON_SHELL_BROWSER_HID_HID_CHOOSER_CONTEXT_FACTORY_H_
+#define ELECTRON_SHELL_BROWSER_HID_HID_CHOOSER_CONTEXT_FACTORY_H_
 
 #include "base/no_destructor.h"
 #include "components/keyed_service/content/browser_context_keyed_service_factory.h"
@@ -40,4 +40,4 @@ class HidChooserContextFactory : public BrowserContextKeyedServiceFactory {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_HID_HID_CHOOSER_CONTEXT_FACTORY_H_
+#endif  // ELECTRON_SHELL_BROWSER_HID_HID_CHOOSER_CONTEXT_FACTORY_H_
diff --git a/shell/browser/hid/hid_chooser_controller.h b/shell/browser/hid/hid_chooser_controller.h
index cda0d399019..ed5ef443a15 100644
--- a/shell/browser/hid/hid_chooser_controller.h
+++ b/shell/browser/hid/hid_chooser_controller.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_HID_HID_CHOOSER_CONTROLLER_H_
-#define SHELL_BROWSER_HID_HID_CHOOSER_CONTROLLER_H_
+#ifndef ELECTRON_SHELL_BROWSER_HID_HID_CHOOSER_CONTROLLER_H_
+#define ELECTRON_SHELL_BROWSER_HID_HID_CHOOSER_CONTROLLER_H_
 
 #include <map>
 #include <string>
@@ -122,4 +122,4 @@ class HidChooserController
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_HID_HID_CHOOSER_CONTROLLER_H_
+#endif  // ELECTRON_SHELL_BROWSER_HID_HID_CHOOSER_CONTROLLER_H_
diff --git a/shell/browser/javascript_environment.h b/shell/browser/javascript_environment.h
index 0700bb2ca63..31ca8544900 100644
--- a/shell/browser/javascript_environment.h
+++ b/shell/browser/javascript_environment.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_JAVASCRIPT_ENVIRONMENT_H_
-#define SHELL_BROWSER_JAVASCRIPT_ENVIRONMENT_H_
+#ifndef ELECTRON_SHELL_BROWSER_JAVASCRIPT_ENVIRONMENT_H_
+#define ELECTRON_SHELL_BROWSER_JAVASCRIPT_ENVIRONMENT_H_
 
 #include <memory>
 
@@ -71,4 +71,4 @@ class NodeEnvironment {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_JAVASCRIPT_ENVIRONMENT_H_
+#endif  // ELECTRON_SHELL_BROWSER_JAVASCRIPT_ENVIRONMENT_H_
diff --git a/shell/browser/lib/bluetooth_chooser.h b/shell/browser/lib/bluetooth_chooser.h
index 285198da724..8143e4ce5cf 100644
--- a/shell/browser/lib/bluetooth_chooser.h
+++ b/shell/browser/lib/bluetooth_chooser.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_LIB_BLUETOOTH_CHOOSER_H_
-#define SHELL_BROWSER_LIB_BLUETOOTH_CHOOSER_H_
+#ifndef ELECTRON_SHELL_BROWSER_LIB_BLUETOOTH_CHOOSER_H_
+#define ELECTRON_SHELL_BROWSER_LIB_BLUETOOTH_CHOOSER_H_
 
 #include <map>
 #include <string>
@@ -51,4 +51,4 @@ class BluetoothChooser : public content::BluetoothChooser {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_LIB_BLUETOOTH_CHOOSER_H_
+#endif  // ELECTRON_SHELL_BROWSER_LIB_BLUETOOTH_CHOOSER_H_
diff --git a/shell/browser/lib/power_observer_linux.h b/shell/browser/lib/power_observer_linux.h
index cbf58d9dc41..99473f04859 100644
--- a/shell/browser/lib/power_observer_linux.h
+++ b/shell/browser/lib/power_observer_linux.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_LIB_POWER_OBSERVER_LINUX_H_
-#define SHELL_BROWSER_LIB_POWER_OBSERVER_LINUX_H_
+#ifndef ELECTRON_SHELL_BROWSER_LIB_POWER_OBSERVER_LINUX_H_
+#define ELECTRON_SHELL_BROWSER_LIB_POWER_OBSERVER_LINUX_H_
 
 #include <string>
 
@@ -53,4 +53,4 @@ class PowerObserverLinux {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_LIB_POWER_OBSERVER_LINUX_H_
+#endif  // ELECTRON_SHELL_BROWSER_LIB_POWER_OBSERVER_LINUX_H_
diff --git a/shell/browser/linux/unity_service.h b/shell/browser/linux/unity_service.h
index 9df6619742a..d134ceffb3d 100644
--- a/shell/browser/linux/unity_service.h
+++ b/shell/browser/linux/unity_service.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_LINUX_UNITY_SERVICE_H_
-#define SHELL_BROWSER_LINUX_UNITY_SERVICE_H_
+#ifndef ELECTRON_SHELL_BROWSER_LINUX_UNITY_SERVICE_H_
+#define ELECTRON_SHELL_BROWSER_LINUX_UNITY_SERVICE_H_
 
 namespace unity {
 
@@ -20,4 +20,4 @@ void SetProgressFraction(float percentage);
 
 }  // namespace unity
 
-#endif  // SHELL_BROWSER_LINUX_UNITY_SERVICE_H_
+#endif  // ELECTRON_SHELL_BROWSER_LINUX_UNITY_SERVICE_H_
diff --git a/shell/browser/login_handler.h b/shell/browser/login_handler.h
index c7c1b3e0909..0e513f8c98b 100644
--- a/shell/browser/login_handler.h
+++ b/shell/browser/login_handler.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_LOGIN_HANDLER_H_
-#define SHELL_BROWSER_LOGIN_HANDLER_H_
+#ifndef ELECTRON_SHELL_BROWSER_LOGIN_HANDLER_H_
+#define ELECTRON_SHELL_BROWSER_LOGIN_HANDLER_H_
 
 #include "base/values.h"
 #include "content/public/browser/content_browser_client.h"
@@ -52,4 +52,4 @@ class LoginHandler : public content::LoginDelegate,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_LOGIN_HANDLER_H_
+#endif  // ELECTRON_SHELL_BROWSER_LOGIN_HANDLER_H_
diff --git a/shell/browser/mac/dict_util.h b/shell/browser/mac/dict_util.h
index 6f4af88be29..13b3bed0d97 100644
--- a/shell/browser/mac/dict_util.h
+++ b/shell/browser/mac/dict_util.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_MAC_DICT_UTIL_H_
-#define SHELL_BROWSER_MAC_DICT_UTIL_H_
+#ifndef ELECTRON_SHELL_BROWSER_MAC_DICT_UTIL_H_
+#define ELECTRON_SHELL_BROWSER_MAC_DICT_UTIL_H_
 
 #import <Foundation/Foundation.h>
 
@@ -21,4 +21,4 @@ base::DictionaryValue NSDictionaryToDictionaryValue(NSDictionary* dict);
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_MAC_DICT_UTIL_H_
+#endif  // ELECTRON_SHELL_BROWSER_MAC_DICT_UTIL_H_
diff --git a/shell/browser/mac/electron_application.h b/shell/browser/mac/electron_application.h
index 24cac256436..d0edcaa453d 100644
--- a/shell/browser/mac/electron_application.h
+++ b/shell/browser/mac/electron_application.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_MAC_ELECTRON_APPLICATION_H_
-#define SHELL_BROWSER_MAC_ELECTRON_APPLICATION_H_
+#ifndef ELECTRON_SHELL_BROWSER_MAC_ELECTRON_APPLICATION_H_
+#define ELECTRON_SHELL_BROWSER_MAC_ELECTRON_APPLICATION_H_
 
 #include "base/callback.h"
 #include "base/mac/scoped_nsobject.h"
@@ -49,4 +49,4 @@
 
 @end
 
-#endif  // SHELL_BROWSER_MAC_ELECTRON_APPLICATION_H_
+#endif  // ELECTRON_SHELL_BROWSER_MAC_ELECTRON_APPLICATION_H_
diff --git a/shell/browser/mac/electron_application_delegate.h b/shell/browser/mac/electron_application_delegate.h
index d1697d2a885..88c6321952e 100644
--- a/shell/browser/mac/electron_application_delegate.h
+++ b/shell/browser/mac/electron_application_delegate.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_MAC_ELECTRON_APPLICATION_DELEGATE_H_
-#define SHELL_BROWSER_MAC_ELECTRON_APPLICATION_DELEGATE_H_
+#ifndef ELECTRON_SHELL_BROWSER_MAC_ELECTRON_APPLICATION_DELEGATE_H_
+#define ELECTRON_SHELL_BROWSER_MAC_ELECTRON_APPLICATION_DELEGATE_H_
 
 #import <Cocoa/Cocoa.h>
 
@@ -19,4 +19,4 @@
 
 @end
 
-#endif  // SHELL_BROWSER_MAC_ELECTRON_APPLICATION_DELEGATE_H_
+#endif  // ELECTRON_SHELL_BROWSER_MAC_ELECTRON_APPLICATION_DELEGATE_H_
diff --git a/shell/browser/mac/in_app_purchase.h b/shell/browser/mac/in_app_purchase.h
index 6411035d648..645c5e3be81 100644
--- a/shell/browser/mac/in_app_purchase.h
+++ b/shell/browser/mac/in_app_purchase.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_MAC_IN_APP_PURCHASE_H_
-#define SHELL_BROWSER_MAC_IN_APP_PURCHASE_H_
+#ifndef ELECTRON_SHELL_BROWSER_MAC_IN_APP_PURCHASE_H_
+#define ELECTRON_SHELL_BROWSER_MAC_IN_APP_PURCHASE_H_
 
 #include <string>
 
@@ -33,4 +33,4 @@ void PurchaseProduct(const std::string& productID,
 
 }  // namespace in_app_purchase
 
-#endif  // SHELL_BROWSER_MAC_IN_APP_PURCHASE_H_
+#endif  // ELECTRON_SHELL_BROWSER_MAC_IN_APP_PURCHASE_H_
diff --git a/shell/browser/mac/in_app_purchase_observer.h b/shell/browser/mac/in_app_purchase_observer.h
index 782eda75615..20a24d4d3bf 100644
--- a/shell/browser/mac/in_app_purchase_observer.h
+++ b/shell/browser/mac/in_app_purchase_observer.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_MAC_IN_APP_PURCHASE_OBSERVER_H_
-#define SHELL_BROWSER_MAC_IN_APP_PURCHASE_OBSERVER_H_
+#ifndef ELECTRON_SHELL_BROWSER_MAC_IN_APP_PURCHASE_OBSERVER_H_
+#define ELECTRON_SHELL_BROWSER_MAC_IN_APP_PURCHASE_OBSERVER_H_
 
 #include <string>
 #include <vector>
@@ -62,4 +62,4 @@ class TransactionObserver {
 
 }  // namespace in_app_purchase
 
-#endif  // SHELL_BROWSER_MAC_IN_APP_PURCHASE_OBSERVER_H_
+#endif  // ELECTRON_SHELL_BROWSER_MAC_IN_APP_PURCHASE_OBSERVER_H_
diff --git a/shell/browser/mac/in_app_purchase_product.h b/shell/browser/mac/in_app_purchase_product.h
index e8e8fc97ec5..0fbd7b65b3a 100644
--- a/shell/browser/mac/in_app_purchase_product.h
+++ b/shell/browser/mac/in_app_purchase_product.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_MAC_IN_APP_PURCHASE_PRODUCT_H_
-#define SHELL_BROWSER_MAC_IN_APP_PURCHASE_PRODUCT_H_
+#ifndef ELECTRON_SHELL_BROWSER_MAC_IN_APP_PURCHASE_PRODUCT_H_
+#define ELECTRON_SHELL_BROWSER_MAC_IN_APP_PURCHASE_PRODUCT_H_
 
 #include <string>
 #include <vector>
@@ -51,4 +51,4 @@ void GetProducts(const std::vector<std::string>& productIDs,
 
 }  // namespace in_app_purchase
 
-#endif  // SHELL_BROWSER_MAC_IN_APP_PURCHASE_PRODUCT_H_
+#endif  // ELECTRON_SHELL_BROWSER_MAC_IN_APP_PURCHASE_PRODUCT_H_
diff --git a/shell/browser/media/media_capture_devices_dispatcher.h b/shell/browser/media/media_capture_devices_dispatcher.h
index fae1dfdb29e..d7b0957e09f 100644
--- a/shell/browser/media/media_capture_devices_dispatcher.h
+++ b/shell/browser/media/media_capture_devices_dispatcher.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE-CHROMIUM file.
 
-#ifndef SHELL_BROWSER_MEDIA_MEDIA_CAPTURE_DEVICES_DISPATCHER_H_
-#define SHELL_BROWSER_MEDIA_MEDIA_CAPTURE_DEVICES_DISPATCHER_H_
+#ifndef ELECTRON_SHELL_BROWSER_MEDIA_MEDIA_CAPTURE_DEVICES_DISPATCHER_H_
+#define ELECTRON_SHELL_BROWSER_MEDIA_MEDIA_CAPTURE_DEVICES_DISPATCHER_H_
 
 #include <string>
 
@@ -90,4 +90,4 @@ class MediaCaptureDevicesDispatcher : public content::MediaObserver {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_MEDIA_MEDIA_CAPTURE_DEVICES_DISPATCHER_H_
+#endif  // ELECTRON_SHELL_BROWSER_MEDIA_MEDIA_CAPTURE_DEVICES_DISPATCHER_H_
diff --git a/shell/browser/media/media_device_id_salt.h b/shell/browser/media/media_device_id_salt.h
index 004705da011..6a765e55ced 100644
--- a/shell/browser/media/media_device_id_salt.h
+++ b/shell/browser/media/media_device_id_salt.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_MEDIA_MEDIA_DEVICE_ID_SALT_H_
-#define SHELL_BROWSER_MEDIA_MEDIA_DEVICE_ID_SALT_H_
+#ifndef ELECTRON_SHELL_BROWSER_MEDIA_MEDIA_DEVICE_ID_SALT_H_
+#define ELECTRON_SHELL_BROWSER_MEDIA_MEDIA_DEVICE_ID_SALT_H_
 
 #include <string>
 
@@ -37,4 +37,4 @@ class MediaDeviceIDSalt {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_MEDIA_MEDIA_DEVICE_ID_SALT_H_
+#endif  // ELECTRON_SHELL_BROWSER_MEDIA_MEDIA_DEVICE_ID_SALT_H_
diff --git a/shell/browser/media/media_stream_devices_controller.h b/shell/browser/media/media_stream_devices_controller.h
index d064ce8b57e..780d38e7cb4 100644
--- a/shell/browser/media/media_stream_devices_controller.h
+++ b/shell/browser/media/media_stream_devices_controller.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE-CHROMIUM file.
 
-#ifndef SHELL_BROWSER_MEDIA_MEDIA_STREAM_DEVICES_CONTROLLER_H_
-#define SHELL_BROWSER_MEDIA_MEDIA_STREAM_DEVICES_CONTROLLER_H_
+#ifndef ELECTRON_SHELL_BROWSER_MEDIA_MEDIA_STREAM_DEVICES_CONTROLLER_H_
+#define ELECTRON_SHELL_BROWSER_MEDIA_MEDIA_STREAM_DEVICES_CONTROLLER_H_
 
 #include "content/public/browser/web_contents_delegate.h"
 #include "third_party/blink/public/common/mediastream/media_stream_request.h"
@@ -46,4 +46,4 @@ class MediaStreamDevicesController {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_MEDIA_MEDIA_STREAM_DEVICES_CONTROLLER_H_
+#endif  // ELECTRON_SHELL_BROWSER_MEDIA_MEDIA_STREAM_DEVICES_CONTROLLER_H_
diff --git a/shell/browser/microtasks_runner.h b/shell/browser/microtasks_runner.h
index c048c865337..b37b7b677df 100644
--- a/shell/browser/microtasks_runner.h
+++ b/shell/browser/microtasks_runner.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_MICROTASKS_RUNNER_H_
-#define SHELL_BROWSER_MICROTASKS_RUNNER_H_
+#ifndef ELECTRON_SHELL_BROWSER_MICROTASKS_RUNNER_H_
+#define ELECTRON_SHELL_BROWSER_MICROTASKS_RUNNER_H_
 
 #include "base/task/task_observer.h"
 
@@ -34,4 +34,4 @@ class MicrotasksRunner : public base::TaskObserver {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_MICROTASKS_RUNNER_H_
+#endif  // ELECTRON_SHELL_BROWSER_MICROTASKS_RUNNER_H_
diff --git a/shell/browser/native_browser_view.h b/shell/browser/native_browser_view.h
index da29b527f1d..05a47ffa3d1 100644
--- a/shell/browser/native_browser_view.h
+++ b/shell/browser/native_browser_view.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NATIVE_BROWSER_VIEW_H_
-#define SHELL_BROWSER_NATIVE_BROWSER_VIEW_H_
+#ifndef ELECTRON_SHELL_BROWSER_NATIVE_BROWSER_VIEW_H_
+#define ELECTRON_SHELL_BROWSER_NATIVE_BROWSER_VIEW_H_
 
 #include <vector>
 
@@ -72,4 +72,4 @@ class NativeBrowserView : public content::WebContentsObserver {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NATIVE_BROWSER_VIEW_H_
+#endif  // ELECTRON_SHELL_BROWSER_NATIVE_BROWSER_VIEW_H_
diff --git a/shell/browser/native_browser_view_mac.h b/shell/browser/native_browser_view_mac.h
index 4b1349fa056..313d51616f3 100644
--- a/shell/browser/native_browser_view_mac.h
+++ b/shell/browser/native_browser_view_mac.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NATIVE_BROWSER_VIEW_MAC_H_
-#define SHELL_BROWSER_NATIVE_BROWSER_VIEW_MAC_H_
+#ifndef ELECTRON_SHELL_BROWSER_NATIVE_BROWSER_VIEW_MAC_H_
+#define ELECTRON_SHELL_BROWSER_NATIVE_BROWSER_VIEW_MAC_H_
 
 #import <Cocoa/Cocoa.h>
 #include <vector>
@@ -33,4 +33,4 @@ class NativeBrowserViewMac : public NativeBrowserView {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NATIVE_BROWSER_VIEW_MAC_H_
+#endif  // ELECTRON_SHELL_BROWSER_NATIVE_BROWSER_VIEW_MAC_H_
diff --git a/shell/browser/native_browser_view_views.h b/shell/browser/native_browser_view_views.h
index bcf2e5a5658..77bb0f73260 100644
--- a/shell/browser/native_browser_view_views.h
+++ b/shell/browser/native_browser_view_views.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NATIVE_BROWSER_VIEW_VIEWS_H_
-#define SHELL_BROWSER_NATIVE_BROWSER_VIEW_VIEWS_H_
+#ifndef ELECTRON_SHELL_BROWSER_NATIVE_BROWSER_VIEW_VIEWS_H_
+#define ELECTRON_SHELL_BROWSER_NATIVE_BROWSER_VIEW_VIEWS_H_
 
 #include <memory>
 #include <vector>
@@ -56,4 +56,4 @@ class NativeBrowserViewViews : public NativeBrowserView {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NATIVE_BROWSER_VIEW_VIEWS_H_
+#endif  // ELECTRON_SHELL_BROWSER_NATIVE_BROWSER_VIEW_VIEWS_H_
diff --git a/shell/browser/native_window.h b/shell/browser/native_window.h
index 8b31a775fd7..113b140ca19 100644
--- a/shell/browser/native_window.h
+++ b/shell/browser/native_window.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NATIVE_WINDOW_H_
-#define SHELL_BROWSER_NATIVE_WINDOW_H_
+#ifndef ELECTRON_SHELL_BROWSER_NATIVE_WINDOW_H_
+#define ELECTRON_SHELL_BROWSER_NATIVE_WINDOW_H_
 
 #include <list>
 #include <memory>
@@ -440,4 +440,4 @@ class NativeWindowRelay
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NATIVE_WINDOW_H_
+#endif  // ELECTRON_SHELL_BROWSER_NATIVE_WINDOW_H_
diff --git a/shell/browser/native_window_mac.h b/shell/browser/native_window_mac.h
index 10dc3fd2a65..27284143792 100644
--- a/shell/browser/native_window_mac.h
+++ b/shell/browser/native_window_mac.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NATIVE_WINDOW_MAC_H_
-#define SHELL_BROWSER_NATIVE_WINDOW_MAC_H_
+#ifndef ELECTRON_SHELL_BROWSER_NATIVE_WINDOW_MAC_H_
+#define ELECTRON_SHELL_BROWSER_NATIVE_WINDOW_MAC_H_
 
 #import <Cocoa/Cocoa.h>
 
@@ -286,4 +286,4 @@ class NativeWindowMac : public NativeWindow,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NATIVE_WINDOW_MAC_H_
+#endif  // ELECTRON_SHELL_BROWSER_NATIVE_WINDOW_MAC_H_
diff --git a/shell/browser/native_window_observer.h b/shell/browser/native_window_observer.h
index ce7f337c3c1..572aca06ef0 100644
--- a/shell/browser/native_window_observer.h
+++ b/shell/browser/native_window_observer.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NATIVE_WINDOW_OBSERVER_H_
-#define SHELL_BROWSER_NATIVE_WINDOW_OBSERVER_H_
+#ifndef ELECTRON_SHELL_BROWSER_NATIVE_WINDOW_OBSERVER_H_
+#define ELECTRON_SHELL_BROWSER_NATIVE_WINDOW_OBSERVER_H_
 
 #include <string>
 
@@ -111,4 +111,4 @@ class NativeWindowObserver : public base::CheckedObserver {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NATIVE_WINDOW_OBSERVER_H_
+#endif  // ELECTRON_SHELL_BROWSER_NATIVE_WINDOW_OBSERVER_H_
diff --git a/shell/browser/native_window_views.h b/shell/browser/native_window_views.h
index 3a5199ebcdc..caaa690da91 100644
--- a/shell/browser/native_window_views.h
+++ b/shell/browser/native_window_views.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NATIVE_WINDOW_VIEWS_H_
-#define SHELL_BROWSER_NATIVE_WINDOW_VIEWS_H_
+#ifndef ELECTRON_SHELL_BROWSER_NATIVE_WINDOW_VIEWS_H_
+#define ELECTRON_SHELL_BROWSER_NATIVE_WINDOW_VIEWS_H_
 
 #include "shell/browser/native_window.h"
 
@@ -336,4 +336,4 @@ class NativeWindowViews : public NativeWindow,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NATIVE_WINDOW_VIEWS_H_
+#endif  // ELECTRON_SHELL_BROWSER_NATIVE_WINDOW_VIEWS_H_
diff --git a/shell/browser/net/asar/asar_file_validator.h b/shell/browser/net/asar/asar_file_validator.h
index 9a028fc22d5..b5ba25770e1 100644
--- a/shell/browser/net/asar/asar_file_validator.h
+++ b/shell/browser/net/asar/asar_file_validator.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NET_ASAR_ASAR_FILE_VALIDATOR_H_
-#define SHELL_BROWSER_NET_ASAR_ASAR_FILE_VALIDATOR_H_
+#ifndef ELECTRON_SHELL_BROWSER_NET_ASAR_ASAR_FILE_VALIDATOR_H_
+#define ELECTRON_SHELL_BROWSER_NET_ASAR_ASAR_FILE_VALIDATOR_H_
 
 #include <algorithm>
 #include <memory>
@@ -60,4 +60,4 @@ class AsarFileValidator : public mojo::FilteredDataSource::Filter {
 
 }  // namespace asar
 
-#endif  // SHELL_BROWSER_NET_ASAR_ASAR_FILE_VALIDATOR_H_
+#endif  // ELECTRON_SHELL_BROWSER_NET_ASAR_ASAR_FILE_VALIDATOR_H_
diff --git a/shell/browser/net/asar/asar_url_loader.h b/shell/browser/net/asar/asar_url_loader.h
index a2594b99a14..09d255fd5d2 100644
--- a/shell/browser/net/asar/asar_url_loader.h
+++ b/shell/browser/net/asar/asar_url_loader.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NET_ASAR_ASAR_URL_LOADER_H_
-#define SHELL_BROWSER_NET_ASAR_ASAR_URL_LOADER_H_
+#ifndef ELECTRON_SHELL_BROWSER_NET_ASAR_ASAR_URL_LOADER_H_
+#define ELECTRON_SHELL_BROWSER_NET_ASAR_ASAR_URL_LOADER_H_
 
 #include "mojo/public/cpp/bindings/pending_remote.h"
 #include "services/network/public/cpp/resource_request.h"
@@ -19,4 +19,4 @@ void CreateAsarURLLoader(
 
 }  // namespace asar
 
-#endif  // SHELL_BROWSER_NET_ASAR_ASAR_URL_LOADER_H_
+#endif  // ELECTRON_SHELL_BROWSER_NET_ASAR_ASAR_URL_LOADER_H_
diff --git a/shell/browser/net/asar/asar_url_loader_factory.h b/shell/browser/net/asar/asar_url_loader_factory.h
index 0c67ceedd46..9a7126b8ba8 100644
--- a/shell/browser/net/asar/asar_url_loader_factory.h
+++ b/shell/browser/net/asar/asar_url_loader_factory.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NET_ASAR_ASAR_URL_LOADER_FACTORY_H_
-#define SHELL_BROWSER_NET_ASAR_ASAR_URL_LOADER_FACTORY_H_
+#ifndef ELECTRON_SHELL_BROWSER_NET_ASAR_ASAR_URL_LOADER_FACTORY_H_
+#define ELECTRON_SHELL_BROWSER_NET_ASAR_ASAR_URL_LOADER_FACTORY_H_
 
 #include "mojo/public/cpp/bindings/pending_receiver.h"
 #include "mojo/public/cpp/bindings/pending_remote.h"
@@ -34,4 +34,4 @@ class AsarURLLoaderFactory : public network::SelfDeletingURLLoaderFactory {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NET_ASAR_ASAR_URL_LOADER_FACTORY_H_
+#endif  // ELECTRON_SHELL_BROWSER_NET_ASAR_ASAR_URL_LOADER_FACTORY_H_
diff --git a/shell/browser/net/cert_verifier_client.h b/shell/browser/net/cert_verifier_client.h
index 23e8112c2d7..f46eaf87b51 100644
--- a/shell/browser/net/cert_verifier_client.h
+++ b/shell/browser/net/cert_verifier_client.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NET_CERT_VERIFIER_CLIENT_H_
-#define SHELL_BROWSER_NET_CERT_VERIFIER_CLIENT_H_
+#ifndef ELECTRON_SHELL_BROWSER_NET_CERT_VERIFIER_CLIENT_H_
+#define ELECTRON_SHELL_BROWSER_NET_CERT_VERIFIER_CLIENT_H_
 
 #include <string>
 
@@ -49,4 +49,4 @@ class CertVerifierClient : public network::mojom::CertVerifierClient {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NET_CERT_VERIFIER_CLIENT_H_
+#endif  // ELECTRON_SHELL_BROWSER_NET_CERT_VERIFIER_CLIENT_H_
diff --git a/shell/browser/net/electron_url_loader_factory.h b/shell/browser/net/electron_url_loader_factory.h
index 9696659a909..a6cac0d0d4c 100644
--- a/shell/browser/net/electron_url_loader_factory.h
+++ b/shell/browser/net/electron_url_loader_factory.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NET_ELECTRON_URL_LOADER_FACTORY_H_
-#define SHELL_BROWSER_NET_ELECTRON_URL_LOADER_FACTORY_H_
+#ifndef ELECTRON_SHELL_BROWSER_NET_ELECTRON_URL_LOADER_FACTORY_H_
+#define ELECTRON_SHELL_BROWSER_NET_ELECTRON_URL_LOADER_FACTORY_H_
 
 #include <map>
 #include <string>
@@ -177,4 +177,4 @@ class ElectronURLLoaderFactory : public network::SelfDeletingURLLoaderFactory {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NET_ELECTRON_URL_LOADER_FACTORY_H_
+#endif  // ELECTRON_SHELL_BROWSER_NET_ELECTRON_URL_LOADER_FACTORY_H_
diff --git a/shell/browser/net/network_context_service.h b/shell/browser/net/network_context_service.h
index ef0c3fdebb7..e68c21db25d 100644
--- a/shell/browser/net/network_context_service.h
+++ b/shell/browser/net/network_context_service.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NET_NETWORK_CONTEXT_SERVICE_H_
-#define SHELL_BROWSER_NET_NETWORK_CONTEXT_SERVICE_H_
+#ifndef ELECTRON_SHELL_BROWSER_NET_NETWORK_CONTEXT_SERVICE_H_
+#define ELECTRON_SHELL_BROWSER_NET_NETWORK_CONTEXT_SERVICE_H_
 
 #include "base/files/file_path.h"
 #include "chrome/browser/net/proxy_config_monitor.h"
@@ -42,4 +42,4 @@ class NetworkContextService : public KeyedService {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NET_NETWORK_CONTEXT_SERVICE_H_
+#endif  // ELECTRON_SHELL_BROWSER_NET_NETWORK_CONTEXT_SERVICE_H_
diff --git a/shell/browser/net/network_context_service_factory.h b/shell/browser/net/network_context_service_factory.h
index 8d24457ed5d..2348dae43f5 100644
--- a/shell/browser/net/network_context_service_factory.h
+++ b/shell/browser/net/network_context_service_factory.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NET_NETWORK_CONTEXT_SERVICE_FACTORY_H_
-#define SHELL_BROWSER_NET_NETWORK_CONTEXT_SERVICE_FACTORY_H_
+#ifndef ELECTRON_SHELL_BROWSER_NET_NETWORK_CONTEXT_SERVICE_FACTORY_H_
+#define ELECTRON_SHELL_BROWSER_NET_NETWORK_CONTEXT_SERVICE_FACTORY_H_
 
 #include "base/memory/singleton.h"
 #include "components/keyed_service/content/browser_context_keyed_service_factory.h"
@@ -47,4 +47,4 @@ class NetworkContextServiceFactory : public BrowserContextKeyedServiceFactory {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NET_NETWORK_CONTEXT_SERVICE_FACTORY_H_
+#endif  // ELECTRON_SHELL_BROWSER_NET_NETWORK_CONTEXT_SERVICE_FACTORY_H_
diff --git a/shell/browser/net/node_stream_loader.h b/shell/browser/net/node_stream_loader.h
index b4fff133b7e..450c388fed2 100644
--- a/shell/browser/net/node_stream_loader.h
+++ b/shell/browser/net/node_stream_loader.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NET_NODE_STREAM_LOADER_H_
-#define SHELL_BROWSER_NET_NODE_STREAM_LOADER_H_
+#ifndef ELECTRON_SHELL_BROWSER_NET_NODE_STREAM_LOADER_H_
+#define ELECTRON_SHELL_BROWSER_NET_NODE_STREAM_LOADER_H_
 
 #include <map>
 #include <memory>
@@ -103,4 +103,4 @@ class NodeStreamLoader : public network::mojom::URLLoader {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NET_NODE_STREAM_LOADER_H_
+#endif  // ELECTRON_SHELL_BROWSER_NET_NODE_STREAM_LOADER_H_
diff --git a/shell/browser/net/proxying_url_loader_factory.h b/shell/browser/net/proxying_url_loader_factory.h
index 644330c1c31..f45c9c94388 100644
--- a/shell/browser/net/proxying_url_loader_factory.h
+++ b/shell/browser/net/proxying_url_loader_factory.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NET_PROXYING_URL_LOADER_FACTORY_H_
-#define SHELL_BROWSER_NET_PROXYING_URL_LOADER_FACTORY_H_
+#ifndef ELECTRON_SHELL_BROWSER_NET_PROXYING_URL_LOADER_FACTORY_H_
+#define ELECTRON_SHELL_BROWSER_NET_PROXYING_URL_LOADER_FACTORY_H_
 
 #include <cstdint>
 #include <map>
@@ -281,4 +281,4 @@ class ProxyingURLLoaderFactory
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NET_PROXYING_URL_LOADER_FACTORY_H_
+#endif  // ELECTRON_SHELL_BROWSER_NET_PROXYING_URL_LOADER_FACTORY_H_
diff --git a/shell/browser/net/proxying_websocket.h b/shell/browser/net/proxying_websocket.h
index 83040bac04b..009b9a1e9d1 100644
--- a/shell/browser/net/proxying_websocket.h
+++ b/shell/browser/net/proxying_websocket.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NET_PROXYING_WEBSOCKET_H_
-#define SHELL_BROWSER_NET_PROXYING_WEBSOCKET_H_
+#ifndef ELECTRON_SHELL_BROWSER_NET_PROXYING_WEBSOCKET_H_
+#define ELECTRON_SHELL_BROWSER_NET_PROXYING_WEBSOCKET_H_
 
 #include <set>
 #include <string>
@@ -178,4 +178,4 @@ class ProxyingWebSocket : public network::mojom::WebSocketHandshakeClient,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NET_PROXYING_WEBSOCKET_H_
+#endif  // ELECTRON_SHELL_BROWSER_NET_PROXYING_WEBSOCKET_H_
diff --git a/shell/browser/net/resolve_proxy_helper.h b/shell/browser/net/resolve_proxy_helper.h
index f67936f18e1..7225e2542e5 100644
--- a/shell/browser/net/resolve_proxy_helper.h
+++ b/shell/browser/net/resolve_proxy_helper.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NET_RESOLVE_PROXY_HELPER_H_
-#define SHELL_BROWSER_NET_RESOLVE_PROXY_HELPER_H_
+#ifndef ELECTRON_SHELL_BROWSER_NET_RESOLVE_PROXY_HELPER_H_
+#define ELECTRON_SHELL_BROWSER_NET_RESOLVE_PROXY_HELPER_H_
 
 #include <deque>
 #include <string>
@@ -75,4 +75,4 @@ class ResolveProxyHelper
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NET_RESOLVE_PROXY_HELPER_H_
+#endif  // ELECTRON_SHELL_BROWSER_NET_RESOLVE_PROXY_HELPER_H_
diff --git a/shell/browser/net/system_network_context_manager.h b/shell/browser/net/system_network_context_manager.h
index f4337f4e6c3..dfce7949f7d 100644
--- a/shell/browser/net/system_network_context_manager.h
+++ b/shell/browser/net/system_network_context_manager.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NET_SYSTEM_NETWORK_CONTEXT_MANAGER_H_
-#define SHELL_BROWSER_NET_SYSTEM_NETWORK_CONTEXT_MANAGER_H_
+#ifndef ELECTRON_SHELL_BROWSER_NET_SYSTEM_NETWORK_CONTEXT_MANAGER_H_
+#define ELECTRON_SHELL_BROWSER_NET_SYSTEM_NETWORK_CONTEXT_MANAGER_H_
 
 #include "base/memory/ref_counted.h"
 #include "chrome/browser/net/proxy_config_monitor.h"
@@ -106,4 +106,4 @@ class SystemNetworkContextManager {
   mojo::Remote<network::mojom::URLLoaderFactory> url_loader_factory_;
 };
 
-#endif  // SHELL_BROWSER_NET_SYSTEM_NETWORK_CONTEXT_MANAGER_H_
+#endif  // ELECTRON_SHELL_BROWSER_NET_SYSTEM_NETWORK_CONTEXT_MANAGER_H_
diff --git a/shell/browser/net/url_pipe_loader.h b/shell/browser/net/url_pipe_loader.h
index da170ac157a..09baa5f1426 100644
--- a/shell/browser/net/url_pipe_loader.h
+++ b/shell/browser/net/url_pipe_loader.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NET_URL_PIPE_LOADER_H_
-#define SHELL_BROWSER_NET_URL_PIPE_LOADER_H_
+#ifndef ELECTRON_SHELL_BROWSER_NET_URL_PIPE_LOADER_H_
+#define ELECTRON_SHELL_BROWSER_NET_URL_PIPE_LOADER_H_
 
 #include <memory>
 #include <string>
@@ -85,4 +85,4 @@ class URLPipeLoader : public network::mojom::URLLoader,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NET_URL_PIPE_LOADER_H_
+#endif  // ELECTRON_SHELL_BROWSER_NET_URL_PIPE_LOADER_H_
diff --git a/shell/browser/net/web_request_api_interface.h b/shell/browser/net/web_request_api_interface.h
index 5eeaad0800c..d4bfb280c21 100644
--- a/shell/browser/net/web_request_api_interface.h
+++ b/shell/browser/net/web_request_api_interface.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NET_WEB_REQUEST_API_INTERFACE_H_
-#define SHELL_BROWSER_NET_WEB_REQUEST_API_INTERFACE_H_
+#ifndef ELECTRON_SHELL_BROWSER_NET_WEB_REQUEST_API_INTERFACE_H_
+#define ELECTRON_SHELL_BROWSER_NET_WEB_REQUEST_API_INTERFACE_H_
 
 #include <set>
 #include <string>
@@ -59,4 +59,4 @@ class WebRequestAPI {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NET_WEB_REQUEST_API_INTERFACE_H_
+#endif  // ELECTRON_SHELL_BROWSER_NET_WEB_REQUEST_API_INTERFACE_H_
diff --git a/shell/browser/network_hints_handler_impl.h b/shell/browser/network_hints_handler_impl.h
index ba49ab6f198..3339f0d7238 100644
--- a/shell/browser/network_hints_handler_impl.h
+++ b/shell/browser/network_hints_handler_impl.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NETWORK_HINTS_HANDLER_IMPL_H_
-#define SHELL_BROWSER_NETWORK_HINTS_HANDLER_IMPL_H_
+#ifndef ELECTRON_SHELL_BROWSER_NETWORK_HINTS_HANDLER_IMPL_H_
+#define ELECTRON_SHELL_BROWSER_NETWORK_HINTS_HANDLER_IMPL_H_
 
 #include "components/network_hints/browser/simple_network_hints_handler_impl.h"
 
@@ -31,4 +31,4 @@ class NetworkHintsHandlerImpl
   content::BrowserContext* browser_context_ = nullptr;
 };
 
-#endif  // SHELL_BROWSER_NETWORK_HINTS_HANDLER_IMPL_H_
+#endif  // ELECTRON_SHELL_BROWSER_NETWORK_HINTS_HANDLER_IMPL_H_
diff --git a/shell/browser/notifications/linux/libnotify_notification.h b/shell/browser/notifications/linux/libnotify_notification.h
index b1cf111fe8d..0158df4503e 100644
--- a/shell/browser/notifications/linux/libnotify_notification.h
+++ b/shell/browser/notifications/linux/libnotify_notification.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NOTIFICATIONS_LINUX_LIBNOTIFY_NOTIFICATION_H_
-#define SHELL_BROWSER_NOTIFICATIONS_LINUX_LIBNOTIFY_NOTIFICATION_H_
+#ifndef ELECTRON_SHELL_BROWSER_NOTIFICATIONS_LINUX_LIBNOTIFY_NOTIFICATION_H_
+#define ELECTRON_SHELL_BROWSER_NOTIFICATIONS_LINUX_LIBNOTIFY_NOTIFICATION_H_
 
 #include "library_loaders/libnotify_loader.h"
 #include "shell/browser/notifications/notification.h"
@@ -39,4 +39,4 @@ class LibnotifyNotification : public Notification {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NOTIFICATIONS_LINUX_LIBNOTIFY_NOTIFICATION_H_
+#endif  // ELECTRON_SHELL_BROWSER_NOTIFICATIONS_LINUX_LIBNOTIFY_NOTIFICATION_H_
diff --git a/shell/browser/notifications/linux/notification_presenter_linux.h b/shell/browser/notifications/linux/notification_presenter_linux.h
index b8e5c71f3cf..9bfcffae70d 100644
--- a/shell/browser/notifications/linux/notification_presenter_linux.h
+++ b/shell/browser/notifications/linux/notification_presenter_linux.h
@@ -3,8 +3,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE-CHROMIUM file.
 
-#ifndef SHELL_BROWSER_NOTIFICATIONS_LINUX_NOTIFICATION_PRESENTER_LINUX_H_
-#define SHELL_BROWSER_NOTIFICATIONS_LINUX_NOTIFICATION_PRESENTER_LINUX_H_
+#ifndef ELECTRON_SHELL_BROWSER_NOTIFICATIONS_LINUX_NOTIFICATION_PRESENTER_LINUX_H_
+#define ELECTRON_SHELL_BROWSER_NOTIFICATIONS_LINUX_NOTIFICATION_PRESENTER_LINUX_H_
 
 #include "shell/browser/notifications/notification_presenter.h"
 
@@ -22,4 +22,4 @@ class NotificationPresenterLinux : public NotificationPresenter {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NOTIFICATIONS_LINUX_NOTIFICATION_PRESENTER_LINUX_H_
+#endif  // ELECTRON_SHELL_BROWSER_NOTIFICATIONS_LINUX_NOTIFICATION_PRESENTER_LINUX_H_
diff --git a/shell/browser/notifications/mac/cocoa_notification.h b/shell/browser/notifications/mac/cocoa_notification.h
index 3f586dc70bd..8fd3cfb64c9 100644
--- a/shell/browser/notifications/mac/cocoa_notification.h
+++ b/shell/browser/notifications/mac/cocoa_notification.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NOTIFICATIONS_MAC_COCOA_NOTIFICATION_H_
-#define SHELL_BROWSER_NOTIFICATIONS_MAC_COCOA_NOTIFICATION_H_
+#ifndef ELECTRON_SHELL_BROWSER_NOTIFICATIONS_MAC_COCOA_NOTIFICATION_H_
+#define ELECTRON_SHELL_BROWSER_NOTIFICATIONS_MAC_COCOA_NOTIFICATION_H_
 
 #import <Foundation/Foundation.h>
 
@@ -43,4 +43,4 @@ class CocoaNotification : public Notification {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NOTIFICATIONS_MAC_COCOA_NOTIFICATION_H_
+#endif  // ELECTRON_SHELL_BROWSER_NOTIFICATIONS_MAC_COCOA_NOTIFICATION_H_
diff --git a/shell/browser/notifications/mac/notification_center_delegate.h b/shell/browser/notifications/mac/notification_center_delegate.h
index ec7e681fa33..fac1f401934 100644
--- a/shell/browser/notifications/mac/notification_center_delegate.h
+++ b/shell/browser/notifications/mac/notification_center_delegate.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NOTIFICATIONS_MAC_NOTIFICATION_CENTER_DELEGATE_H_
-#define SHELL_BROWSER_NOTIFICATIONS_MAC_NOTIFICATION_CENTER_DELEGATE_H_
+#ifndef ELECTRON_SHELL_BROWSER_NOTIFICATIONS_MAC_NOTIFICATION_CENTER_DELEGATE_H_
+#define ELECTRON_SHELL_BROWSER_NOTIFICATIONS_MAC_NOTIFICATION_CENTER_DELEGATE_H_
 
 #import <Foundation/Foundation.h>
 
@@ -20,4 +20,4 @@ class NotificationPresenterMac;
     (electron::NotificationPresenterMac*)presenter;
 @end
 
-#endif  // SHELL_BROWSER_NOTIFICATIONS_MAC_NOTIFICATION_CENTER_DELEGATE_H_
+#endif  // ELECTRON_SHELL_BROWSER_NOTIFICATIONS_MAC_NOTIFICATION_CENTER_DELEGATE_H_
diff --git a/shell/browser/notifications/mac/notification_presenter_mac.h b/shell/browser/notifications/mac/notification_presenter_mac.h
index 242c42391b2..207e3acd814 100644
--- a/shell/browser/notifications/mac/notification_presenter_mac.h
+++ b/shell/browser/notifications/mac/notification_presenter_mac.h
@@ -3,8 +3,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE-CHROMIUM file.
 
-#ifndef SHELL_BROWSER_NOTIFICATIONS_MAC_NOTIFICATION_PRESENTER_MAC_H_
-#define SHELL_BROWSER_NOTIFICATIONS_MAC_NOTIFICATION_PRESENTER_MAC_H_
+#ifndef ELECTRON_SHELL_BROWSER_NOTIFICATIONS_MAC_NOTIFICATION_PRESENTER_MAC_H_
+#define ELECTRON_SHELL_BROWSER_NOTIFICATIONS_MAC_NOTIFICATION_PRESENTER_MAC_H_
 
 #include "base/mac/scoped_nsobject.h"
 #include "shell/browser/notifications/mac/notification_center_delegate.h"
@@ -31,4 +31,4 @@ class NotificationPresenterMac : public NotificationPresenter {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NOTIFICATIONS_MAC_NOTIFICATION_PRESENTER_MAC_H_
+#endif  // ELECTRON_SHELL_BROWSER_NOTIFICATIONS_MAC_NOTIFICATION_PRESENTER_MAC_H_
diff --git a/shell/browser/notifications/notification.h b/shell/browser/notifications/notification.h
index 79a073977c3..6d7456c5dcb 100644
--- a/shell/browser/notifications/notification.h
+++ b/shell/browser/notifications/notification.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NOTIFICATIONS_NOTIFICATION_H_
-#define SHELL_BROWSER_NOTIFICATIONS_NOTIFICATION_H_
+#ifndef ELECTRON_SHELL_BROWSER_NOTIFICATIONS_NOTIFICATION_H_
+#define ELECTRON_SHELL_BROWSER_NOTIFICATIONS_NOTIFICATION_H_
 
 #include <string>
 #include <vector>
@@ -90,4 +90,4 @@ class Notification {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NOTIFICATIONS_NOTIFICATION_H_
+#endif  // ELECTRON_SHELL_BROWSER_NOTIFICATIONS_NOTIFICATION_H_
diff --git a/shell/browser/notifications/notification_delegate.h b/shell/browser/notifications/notification_delegate.h
index 4f52279c71d..8a44f420a1b 100644
--- a/shell/browser/notifications/notification_delegate.h
+++ b/shell/browser/notifications/notification_delegate.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NOTIFICATIONS_NOTIFICATION_DELEGATE_H_
-#define SHELL_BROWSER_NOTIFICATIONS_NOTIFICATION_DELEGATE_H_
+#ifndef ELECTRON_SHELL_BROWSER_NOTIFICATIONS_NOTIFICATION_DELEGATE_H_
+#define ELECTRON_SHELL_BROWSER_NOTIFICATIONS_NOTIFICATION_DELEGATE_H_
 
 #include <string>
 
@@ -32,4 +32,4 @@ class NotificationDelegate {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NOTIFICATIONS_NOTIFICATION_DELEGATE_H_
+#endif  // ELECTRON_SHELL_BROWSER_NOTIFICATIONS_NOTIFICATION_DELEGATE_H_
diff --git a/shell/browser/notifications/notification_presenter.h b/shell/browser/notifications/notification_presenter.h
index 4a30855d7aa..b29dd2a4dc8 100644
--- a/shell/browser/notifications/notification_presenter.h
+++ b/shell/browser/notifications/notification_presenter.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NOTIFICATIONS_NOTIFICATION_PRESENTER_H_
-#define SHELL_BROWSER_NOTIFICATIONS_NOTIFICATION_PRESENTER_H_
+#ifndef ELECTRON_SHELL_BROWSER_NOTIFICATIONS_NOTIFICATION_PRESENTER_H_
+#define ELECTRON_SHELL_BROWSER_NOTIFICATIONS_NOTIFICATION_PRESENTER_H_
 
 #include <set>
 #include <string>
@@ -47,4 +47,4 @@ class NotificationPresenter {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NOTIFICATIONS_NOTIFICATION_PRESENTER_H_
+#endif  // ELECTRON_SHELL_BROWSER_NOTIFICATIONS_NOTIFICATION_PRESENTER_H_
diff --git a/shell/browser/notifications/platform_notification_service.h b/shell/browser/notifications/platform_notification_service.h
index 3b6d99b5fc3..fefbbb70ced 100644
--- a/shell/browser/notifications/platform_notification_service.h
+++ b/shell/browser/notifications/platform_notification_service.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE-CHROMIUM file.
 
-#ifndef SHELL_BROWSER_NOTIFICATIONS_PLATFORM_NOTIFICATION_SERVICE_H_
-#define SHELL_BROWSER_NOTIFICATIONS_PLATFORM_NOTIFICATION_SERVICE_H_
+#ifndef ELECTRON_SHELL_BROWSER_NOTIFICATIONS_PLATFORM_NOTIFICATION_SERVICE_H_
+#define ELECTRON_SHELL_BROWSER_NOTIFICATIONS_PLATFORM_NOTIFICATION_SERVICE_H_
 
 #include <string>
 
@@ -55,4 +55,4 @@ class PlatformNotificationService
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NOTIFICATIONS_PLATFORM_NOTIFICATION_SERVICE_H_
+#endif  // ELECTRON_SHELL_BROWSER_NOTIFICATIONS_PLATFORM_NOTIFICATION_SERVICE_H_
diff --git a/shell/browser/notifications/win/notification_presenter_win.h b/shell/browser/notifications/win/notification_presenter_win.h
index 23b9ea992eb..1730f098835 100644
--- a/shell/browser/notifications/win/notification_presenter_win.h
+++ b/shell/browser/notifications/win/notification_presenter_win.h
@@ -20,8 +20,8 @@
 //   console.log("Notification dismissed")
 // };
 
-#ifndef SHELL_BROWSER_NOTIFICATIONS_WIN_NOTIFICATION_PRESENTER_WIN_H_
-#define SHELL_BROWSER_NOTIFICATIONS_WIN_NOTIFICATION_PRESENTER_WIN_H_
+#ifndef ELECTRON_SHELL_BROWSER_NOTIFICATIONS_WIN_NOTIFICATION_PRESENTER_WIN_H_
+#define ELECTRON_SHELL_BROWSER_NOTIFICATIONS_WIN_NOTIFICATION_PRESENTER_WIN_H_
 
 #include "base/files/scoped_temp_dir.h"
 #include "shell/browser/notifications/notification_presenter.h"
@@ -49,4 +49,4 @@ class NotificationPresenterWin : public NotificationPresenter {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NOTIFICATIONS_WIN_NOTIFICATION_PRESENTER_WIN_H_
+#endif  // ELECTRON_SHELL_BROWSER_NOTIFICATIONS_WIN_NOTIFICATION_PRESENTER_WIN_H_
diff --git a/shell/browser/notifications/win/notification_presenter_win7.h b/shell/browser/notifications/win/notification_presenter_win7.h
index 67513ee3c30..6c03839e624 100644
--- a/shell/browser/notifications/win/notification_presenter_win7.h
+++ b/shell/browser/notifications/win/notification_presenter_win7.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NOTIFICATIONS_WIN_NOTIFICATION_PRESENTER_WIN7_H_
-#define SHELL_BROWSER_NOTIFICATIONS_WIN_NOTIFICATION_PRESENTER_WIN7_H_
+#ifndef ELECTRON_SHELL_BROWSER_NOTIFICATIONS_WIN_NOTIFICATION_PRESENTER_WIN7_H_
+#define ELECTRON_SHELL_BROWSER_NOTIFICATIONS_WIN_NOTIFICATION_PRESENTER_WIN7_H_
 
 #include <string>
 
@@ -34,4 +34,4 @@ class NotificationPresenterWin7 : public NotificationPresenter,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NOTIFICATIONS_WIN_NOTIFICATION_PRESENTER_WIN7_H_
+#endif  // ELECTRON_SHELL_BROWSER_NOTIFICATIONS_WIN_NOTIFICATION_PRESENTER_WIN7_H_
diff --git a/shell/browser/notifications/win/win32_desktop_notifications/common.h b/shell/browser/notifications/win/win32_desktop_notifications/common.h
index a5655d008f6..9ffec8a5619 100644
--- a/shell/browser/notifications/win/win32_desktop_notifications/common.h
+++ b/shell/browser/notifications/win/win32_desktop_notifications/common.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NOTIFICATIONS_WIN_WIN32_DESKTOP_NOTIFICATIONS_COMMON_H_
-#define SHELL_BROWSER_NOTIFICATIONS_WIN_WIN32_DESKTOP_NOTIFICATIONS_COMMON_H_
+#ifndef ELECTRON_SHELL_BROWSER_NOTIFICATIONS_WIN_WIN32_DESKTOP_NOTIFICATIONS_COMMON_H_
+#define ELECTRON_SHELL_BROWSER_NOTIFICATIONS_WIN_WIN32_DESKTOP_NOTIFICATIONS_COMMON_H_
 
 #include <Windows.h>
 
@@ -65,4 +65,4 @@ struct ScreenMetrics {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NOTIFICATIONS_WIN_WIN32_DESKTOP_NOTIFICATIONS_COMMON_H_
+#endif  // ELECTRON_SHELL_BROWSER_NOTIFICATIONS_WIN_WIN32_DESKTOP_NOTIFICATIONS_COMMON_H_
diff --git a/shell/browser/notifications/win/win32_desktop_notifications/desktop_notification_controller.h b/shell/browser/notifications/win/win32_desktop_notifications/desktop_notification_controller.h
index 05152210560..d188cbc151a 100644
--- a/shell/browser/notifications/win/win32_desktop_notifications/desktop_notification_controller.h
+++ b/shell/browser/notifications/win/win32_desktop_notifications/desktop_notification_controller.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NOTIFICATIONS_WIN_WIN32_DESKTOP_NOTIFICATIONS_DESKTOP_NOTIFICATION_CONTROLLER_H_
-#define SHELL_BROWSER_NOTIFICATIONS_WIN_WIN32_DESKTOP_NOTIFICATIONS_DESKTOP_NOTIFICATION_CONTROLLER_H_
+#ifndef ELECTRON_SHELL_BROWSER_NOTIFICATIONS_WIN_WIN32_DESKTOP_NOTIFICATIONS_DESKTOP_NOTIFICATION_CONTROLLER_H_
+#define ELECTRON_SHELL_BROWSER_NOTIFICATIONS_WIN_WIN32_DESKTOP_NOTIFICATIONS_DESKTOP_NOTIFICATION_CONTROLLER_H_
 
 #include <Windows.h>
 #include <deque>
@@ -97,4 +97,4 @@ class DesktopNotificationController::Notification {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NOTIFICATIONS_WIN_WIN32_DESKTOP_NOTIFICATIONS_DESKTOP_NOTIFICATION_CONTROLLER_H_
+#endif  // ELECTRON_SHELL_BROWSER_NOTIFICATIONS_WIN_WIN32_DESKTOP_NOTIFICATIONS_DESKTOP_NOTIFICATION_CONTROLLER_H_
diff --git a/shell/browser/notifications/win/win32_desktop_notifications/toast.h b/shell/browser/notifications/win/win32_desktop_notifications/toast.h
index 869eb13a7da..d7bd2c41b42 100644
--- a/shell/browser/notifications/win/win32_desktop_notifications/toast.h
+++ b/shell/browser/notifications/win/win32_desktop_notifications/toast.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NOTIFICATIONS_WIN_WIN32_DESKTOP_NOTIFICATIONS_TOAST_H_
-#define SHELL_BROWSER_NOTIFICATIONS_WIN_WIN32_DESKTOP_NOTIFICATIONS_TOAST_H_
+#ifndef ELECTRON_SHELL_BROWSER_NOTIFICATIONS_WIN_WIN32_DESKTOP_NOTIFICATIONS_TOAST_H_
+#define ELECTRON_SHELL_BROWSER_NOTIFICATIONS_WIN_WIN32_DESKTOP_NOTIFICATIONS_TOAST_H_
 
 #include <memory>
 
@@ -104,4 +104,4 @@ class DesktopNotificationController::Toast {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NOTIFICATIONS_WIN_WIN32_DESKTOP_NOTIFICATIONS_TOAST_H_
+#endif  // ELECTRON_SHELL_BROWSER_NOTIFICATIONS_WIN_WIN32_DESKTOP_NOTIFICATIONS_TOAST_H_
diff --git a/shell/browser/notifications/win/win32_desktop_notifications/toast_uia.h b/shell/browser/notifications/win/win32_desktop_notifications/toast_uia.h
index 3cffd9ce45a..0639357b24e 100644
--- a/shell/browser/notifications/win/win32_desktop_notifications/toast_uia.h
+++ b/shell/browser/notifications/win/win32_desktop_notifications/toast_uia.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NOTIFICATIONS_WIN_WIN32_DESKTOP_NOTIFICATIONS_TOAST_UIA_H_
-#define SHELL_BROWSER_NOTIFICATIONS_WIN_WIN32_DESKTOP_NOTIFICATIONS_TOAST_UIA_H_
+#ifndef ELECTRON_SHELL_BROWSER_NOTIFICATIONS_WIN_WIN32_DESKTOP_NOTIFICATIONS_TOAST_UIA_H_
+#define ELECTRON_SHELL_BROWSER_NOTIFICATIONS_WIN_WIN32_DESKTOP_NOTIFICATIONS_TOAST_UIA_H_
 
 #include "shell/browser/notifications/win/win32_desktop_notifications/toast.h"
 
@@ -81,4 +81,4 @@ class DesktopNotificationController::Toast::UIAutomationInterface
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NOTIFICATIONS_WIN_WIN32_DESKTOP_NOTIFICATIONS_TOAST_UIA_H_
+#endif  // ELECTRON_SHELL_BROWSER_NOTIFICATIONS_WIN_WIN32_DESKTOP_NOTIFICATIONS_TOAST_UIA_H_
diff --git a/shell/browser/notifications/win/win32_notification.h b/shell/browser/notifications/win/win32_notification.h
index ea5f9a28757..fdb1145cca3 100644
--- a/shell/browser/notifications/win/win32_notification.h
+++ b/shell/browser/notifications/win/win32_notification.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_NOTIFICATIONS_WIN_WIN32_NOTIFICATION_H_
-#define SHELL_BROWSER_NOTIFICATIONS_WIN_WIN32_NOTIFICATION_H_
+#ifndef ELECTRON_SHELL_BROWSER_NOTIFICATIONS_WIN_WIN32_NOTIFICATION_H_
+#define ELECTRON_SHELL_BROWSER_NOTIFICATIONS_WIN_WIN32_NOTIFICATION_H_
 
 #include <string>
 
@@ -33,4 +33,4 @@ class Win32Notification : public electron::Notification {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NOTIFICATIONS_WIN_WIN32_NOTIFICATION_H_
+#endif  // ELECTRON_SHELL_BROWSER_NOTIFICATIONS_WIN_WIN32_NOTIFICATION_H_
diff --git a/shell/browser/notifications/win/windows_toast_notification.h b/shell/browser/notifications/win/windows_toast_notification.h
index 51fec92a559..adb0f87753f 100644
--- a/shell/browser/notifications/win/windows_toast_notification.h
+++ b/shell/browser/notifications/win/windows_toast_notification.h
@@ -6,8 +6,8 @@
 // this code
 // and released it as MIT to the world.
 
-#ifndef SHELL_BROWSER_NOTIFICATIONS_WIN_WINDOWS_TOAST_NOTIFICATION_H_
-#define SHELL_BROWSER_NOTIFICATIONS_WIN_WINDOWS_TOAST_NOTIFICATION_H_
+#ifndef ELECTRON_SHELL_BROWSER_NOTIFICATIONS_WIN_WINDOWS_TOAST_NOTIFICATION_H_
+#define ELECTRON_SHELL_BROWSER_NOTIFICATIONS_WIN_WINDOWS_TOAST_NOTIFICATION_H_
 
 #include <windows.h>
 #include <windows.ui.notifications.h>
@@ -136,4 +136,4 @@ class ToastEventHandler : public RuntimeClass<RuntimeClassFlags<ClassicCom>,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_NOTIFICATIONS_WIN_WINDOWS_TOAST_NOTIFICATION_H_
+#endif  // ELECTRON_SHELL_BROWSER_NOTIFICATIONS_WIN_WINDOWS_TOAST_NOTIFICATION_H_
diff --git a/shell/browser/osr/osr_host_display_client.h b/shell/browser/osr/osr_host_display_client.h
index 1d858dea148..795cf53ce74 100644
--- a/shell/browser/osr/osr_host_display_client.h
+++ b/shell/browser/osr/osr_host_display_client.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_OSR_OSR_HOST_DISPLAY_CLIENT_H_
-#define SHELL_BROWSER_OSR_OSR_HOST_DISPLAY_CLIENT_H_
+#ifndef ELECTRON_SHELL_BROWSER_OSR_OSR_HOST_DISPLAY_CLIENT_H_
+#define ELECTRON_SHELL_BROWSER_OSR_OSR_HOST_DISPLAY_CLIENT_H_
 
 #include <memory>
 
@@ -83,4 +83,4 @@ class OffScreenHostDisplayClient : public viz::HostDisplayClient {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_OSR_OSR_HOST_DISPLAY_CLIENT_H_
+#endif  // ELECTRON_SHELL_BROWSER_OSR_OSR_HOST_DISPLAY_CLIENT_H_
diff --git a/shell/browser/osr/osr_render_widget_host_view.h b/shell/browser/osr/osr_render_widget_host_view.h
index 98eaa68ff14..485a18180cf 100644
--- a/shell/browser/osr/osr_render_widget_host_view.h
+++ b/shell/browser/osr/osr_render_widget_host_view.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_OSR_OSR_RENDER_WIDGET_HOST_VIEW_H_
-#define SHELL_BROWSER_OSR_OSR_RENDER_WIDGET_HOST_VIEW_H_
+#ifndef ELECTRON_SHELL_BROWSER_OSR_OSR_RENDER_WIDGET_HOST_VIEW_H_
+#define ELECTRON_SHELL_BROWSER_OSR_OSR_RENDER_WIDGET_HOST_VIEW_H_
 
 #include <memory>
 #include <set>
@@ -299,4 +299,4 @@ class OffScreenRenderWidgetHostView : public content::RenderWidgetHostViewBase,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_OSR_OSR_RENDER_WIDGET_HOST_VIEW_H_
+#endif  // ELECTRON_SHELL_BROWSER_OSR_OSR_RENDER_WIDGET_HOST_VIEW_H_
diff --git a/shell/browser/osr/osr_video_consumer.h b/shell/browser/osr/osr_video_consumer.h
index fb970a3031e..ac04a3a57a6 100644
--- a/shell/browser/osr/osr_video_consumer.h
+++ b/shell/browser/osr/osr_video_consumer.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_OSR_OSR_VIDEO_CONSUMER_H_
-#define SHELL_BROWSER_OSR_OSR_VIDEO_CONSUMER_H_
+#ifndef ELECTRON_SHELL_BROWSER_OSR_OSR_VIDEO_CONSUMER_H_
+#define ELECTRON_SHELL_BROWSER_OSR_OSR_VIDEO_CONSUMER_H_
 
 #include <memory>
 #include <string>
@@ -57,4 +57,4 @@ class OffScreenVideoConsumer : public viz::mojom::FrameSinkVideoConsumer {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_OSR_OSR_VIDEO_CONSUMER_H_
+#endif  // ELECTRON_SHELL_BROWSER_OSR_OSR_VIDEO_CONSUMER_H_
diff --git a/shell/browser/osr/osr_view_proxy.h b/shell/browser/osr/osr_view_proxy.h
index f6e4bea40c1..6704cfd4fc5 100644
--- a/shell/browser/osr/osr_view_proxy.h
+++ b/shell/browser/osr/osr_view_proxy.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_OSR_OSR_VIEW_PROXY_H_
-#define SHELL_BROWSER_OSR_OSR_VIEW_PROXY_H_
+#ifndef ELECTRON_SHELL_BROWSER_OSR_OSR_VIEW_PROXY_H_
+#define ELECTRON_SHELL_BROWSER_OSR_OSR_VIEW_PROXY_H_
 
 #include <memory>
 
@@ -51,4 +51,4 @@ class OffscreenViewProxy {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_OSR_OSR_VIEW_PROXY_H_
+#endif  // ELECTRON_SHELL_BROWSER_OSR_OSR_VIEW_PROXY_H_
diff --git a/shell/browser/osr/osr_web_contents_view.h b/shell/browser/osr/osr_web_contents_view.h
index d530ca0627c..0e02728f48c 100644
--- a/shell/browser/osr/osr_web_contents_view.h
+++ b/shell/browser/osr/osr_web_contents_view.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_OSR_OSR_WEB_CONTENTS_VIEW_H_
-#define SHELL_BROWSER_OSR_OSR_WEB_CONTENTS_VIEW_H_
+#ifndef ELECTRON_SHELL_BROWSER_OSR_OSR_WEB_CONTENTS_VIEW_H_
+#define ELECTRON_SHELL_BROWSER_OSR_OSR_WEB_CONTENTS_VIEW_H_
 
 #include "shell/browser/native_window.h"
 #include "shell/browser/native_window_observer.h"
@@ -105,4 +105,4 @@ class OffScreenWebContentsView : public content::WebContentsView,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_OSR_OSR_WEB_CONTENTS_VIEW_H_
+#endif  // ELECTRON_SHELL_BROWSER_OSR_OSR_WEB_CONTENTS_VIEW_H_
diff --git a/shell/browser/plugins/plugin_utils.h b/shell/browser/plugins/plugin_utils.h
index 1bd0c5bd8d2..0aaec62c3d2 100644
--- a/shell/browser/plugins/plugin_utils.h
+++ b/shell/browser/plugins/plugin_utils.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_PLUGINS_PLUGIN_UTILS_H_
-#define SHELL_BROWSER_PLUGINS_PLUGIN_UTILS_H_
+#ifndef ELECTRON_SHELL_BROWSER_PLUGINS_PLUGIN_UTILS_H_
+#define ELECTRON_SHELL_BROWSER_PLUGINS_PLUGIN_UTILS_H_
 
 #include <string>
 
@@ -31,4 +31,4 @@ class PluginUtils {
       content::BrowserContext* browser_context);
 };
 
-#endif  // SHELL_BROWSER_PLUGINS_PLUGIN_UTILS_H_
+#endif  // ELECTRON_SHELL_BROWSER_PLUGINS_PLUGIN_UTILS_H_
diff --git a/shell/browser/pref_store_delegate.h b/shell/browser/pref_store_delegate.h
index 13b875558ca..b3997f3e332 100644
--- a/shell/browser/pref_store_delegate.h
+++ b/shell/browser/pref_store_delegate.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_PREF_STORE_DELEGATE_H_
-#define SHELL_BROWSER_PREF_STORE_DELEGATE_H_
+#ifndef ELECTRON_SHELL_BROWSER_PREF_STORE_DELEGATE_H_
+#define ELECTRON_SHELL_BROWSER_PREF_STORE_DELEGATE_H_
 
 #include <vector>
 
@@ -55,4 +55,4 @@ class PrefStoreDelegate : public PrefValueStore::Delegate {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_PREF_STORE_DELEGATE_H_
+#endif  // ELECTRON_SHELL_BROWSER_PREF_STORE_DELEGATE_H_
diff --git a/shell/browser/printing/print_preview_message_handler.h b/shell/browser/printing/print_preview_message_handler.h
index 0e5449f137a..ca84e8c92a6 100644
--- a/shell/browser/printing/print_preview_message_handler.h
+++ b/shell/browser/printing/print_preview_message_handler.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_PRINTING_PRINT_PREVIEW_MESSAGE_HANDLER_H_
-#define SHELL_BROWSER_PRINTING_PRINT_PREVIEW_MESSAGE_HANDLER_H_
+#ifndef ELECTRON_SHELL_BROWSER_PRINTING_PRINT_PREVIEW_MESSAGE_HANDLER_H_
+#define ELECTRON_SHELL_BROWSER_PRINTING_PRINT_PREVIEW_MESSAGE_HANDLER_H_
 
 #include <map>
 
@@ -103,4 +103,4 @@ class PrintPreviewMessageHandler
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_PRINTING_PRINT_PREVIEW_MESSAGE_HANDLER_H_
+#endif  // ELECTRON_SHELL_BROWSER_PRINTING_PRINT_PREVIEW_MESSAGE_HANDLER_H_
diff --git a/shell/browser/printing/print_view_manager_electron.h b/shell/browser/printing/print_view_manager_electron.h
index 5364450a9d4..2127219f953 100644
--- a/shell/browser/printing/print_view_manager_electron.h
+++ b/shell/browser/printing/print_view_manager_electron.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_PRINTING_PRINT_VIEW_MANAGER_ELECTRON_H_
-#define SHELL_BROWSER_PRINTING_PRINT_VIEW_MANAGER_ELECTRON_H_
+#ifndef ELECTRON_SHELL_BROWSER_PRINTING_PRINT_VIEW_MANAGER_ELECTRON_H_
+#define ELECTRON_SHELL_BROWSER_PRINTING_PRINT_VIEW_MANAGER_ELECTRON_H_
 
 #include "build/build_config.h"
 #include "chrome/browser/printing/print_view_manager_base.h"
@@ -44,4 +44,4 @@ class PrintViewManagerElectron
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_PRINTING_PRINT_VIEW_MANAGER_ELECTRON_H_
+#endif  // ELECTRON_SHELL_BROWSER_PRINTING_PRINT_VIEW_MANAGER_ELECTRON_H_
diff --git a/shell/browser/protocol_registry.h b/shell/browser/protocol_registry.h
index f5a07863ec8..035197e78f9 100644
--- a/shell/browser/protocol_registry.h
+++ b/shell/browser/protocol_registry.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_PROTOCOL_REGISTRY_H_
-#define SHELL_BROWSER_PROTOCOL_REGISTRY_H_
+#ifndef ELECTRON_SHELL_BROWSER_PROTOCOL_REGISTRY_H_
+#define ELECTRON_SHELL_BROWSER_PROTOCOL_REGISTRY_H_
 
 #include <string>
 
@@ -55,4 +55,4 @@ class ProtocolRegistry {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_PROTOCOL_REGISTRY_H_
+#endif  // ELECTRON_SHELL_BROWSER_PROTOCOL_REGISTRY_H_
diff --git a/shell/browser/relauncher.h b/shell/browser/relauncher.h
index 16f14c92d2a..d3208843cc1 100644
--- a/shell/browser/relauncher.h
+++ b/shell/browser/relauncher.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_RELAUNCHER_H_
-#define SHELL_BROWSER_RELAUNCHER_H_
+#ifndef ELECTRON_SHELL_BROWSER_RELAUNCHER_H_
+#define ELECTRON_SHELL_BROWSER_RELAUNCHER_H_
 
 // relauncher implements main browser application relaunches across platforms.
 // When a browser wants to relaunch itself, it can't simply fork off a new
@@ -116,4 +116,4 @@ int LaunchProgram(const StringVector& relauncher_args,
 
 }  // namespace relauncher
 
-#endif  // SHELL_BROWSER_RELAUNCHER_H_
+#endif  // ELECTRON_SHELL_BROWSER_RELAUNCHER_H_
diff --git a/shell/browser/serial/electron_serial_delegate.h b/shell/browser/serial/electron_serial_delegate.h
index 6993af27889..ef9c4af749f 100644
--- a/shell/browser/serial/electron_serial_delegate.h
+++ b/shell/browser/serial/electron_serial_delegate.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_SERIAL_ELECTRON_SERIAL_DELEGATE_H_
-#define SHELL_BROWSER_SERIAL_ELECTRON_SERIAL_DELEGATE_H_
+#ifndef ELECTRON_SHELL_BROWSER_SERIAL_ELECTRON_SERIAL_DELEGATE_H_
+#define ELECTRON_SHELL_BROWSER_SERIAL_ELECTRON_SERIAL_DELEGATE_H_
 
 #include <memory>
 #include <unordered_map>
@@ -59,4 +59,4 @@ class ElectronSerialDelegate : public content::SerialDelegate {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_SERIAL_ELECTRON_SERIAL_DELEGATE_H_
+#endif  // ELECTRON_SHELL_BROWSER_SERIAL_ELECTRON_SERIAL_DELEGATE_H_
diff --git a/shell/browser/serial/serial_chooser_context.h b/shell/browser/serial/serial_chooser_context.h
index adc527c6e32..313ec7065c0 100644
--- a/shell/browser/serial/serial_chooser_context.h
+++ b/shell/browser/serial/serial_chooser_context.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_SERIAL_SERIAL_CHOOSER_CONTEXT_H_
-#define SHELL_BROWSER_SERIAL_SERIAL_CHOOSER_CONTEXT_H_
+#ifndef ELECTRON_SHELL_BROWSER_SERIAL_SERIAL_CHOOSER_CONTEXT_H_
+#define ELECTRON_SHELL_BROWSER_SERIAL_SERIAL_CHOOSER_CONTEXT_H_
 
 #include <map>
 #include <set>
@@ -97,4 +97,4 @@ class SerialChooserContext : public KeyedService,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_SERIAL_SERIAL_CHOOSER_CONTEXT_H_
+#endif  // ELECTRON_SHELL_BROWSER_SERIAL_SERIAL_CHOOSER_CONTEXT_H_
diff --git a/shell/browser/serial/serial_chooser_context_factory.h b/shell/browser/serial/serial_chooser_context_factory.h
index 8e1d8b30c41..c1b6afec1f6 100644
--- a/shell/browser/serial/serial_chooser_context_factory.h
+++ b/shell/browser/serial/serial_chooser_context_factory.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_SERIAL_SERIAL_CHOOSER_CONTEXT_FACTORY_H_
-#define SHELL_BROWSER_SERIAL_SERIAL_CHOOSER_CONTEXT_FACTORY_H_
+#ifndef ELECTRON_SHELL_BROWSER_SERIAL_SERIAL_CHOOSER_CONTEXT_FACTORY_H_
+#define ELECTRON_SHELL_BROWSER_SERIAL_SERIAL_CHOOSER_CONTEXT_FACTORY_H_
 
 #include "base/memory/singleton.h"
 #include "components/keyed_service/content/browser_context_keyed_service_factory.h"
@@ -39,4 +39,4 @@ class SerialChooserContextFactory : public BrowserContextKeyedServiceFactory {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_SERIAL_SERIAL_CHOOSER_CONTEXT_FACTORY_H_
+#endif  // ELECTRON_SHELL_BROWSER_SERIAL_SERIAL_CHOOSER_CONTEXT_FACTORY_H_
diff --git a/shell/browser/serial/serial_chooser_controller.h b/shell/browser/serial/serial_chooser_controller.h
index f3e3cd7460b..368cf18652a 100644
--- a/shell/browser/serial/serial_chooser_controller.h
+++ b/shell/browser/serial/serial_chooser_controller.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_SERIAL_SERIAL_CHOOSER_CONTROLLER_H_
-#define SHELL_BROWSER_SERIAL_SERIAL_CHOOSER_CONTROLLER_H_
+#ifndef ELECTRON_SHELL_BROWSER_SERIAL_SERIAL_CHOOSER_CONTROLLER_H_
+#define ELECTRON_SHELL_BROWSER_SERIAL_SERIAL_CHOOSER_CONTROLLER_H_
 
 #include <string>
 #include <vector>
@@ -72,4 +72,4 @@ class SerialChooserController final : public SerialChooserContext::PortObserver,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_SERIAL_SERIAL_CHOOSER_CONTROLLER_H_
+#endif  // ELECTRON_SHELL_BROWSER_SERIAL_SERIAL_CHOOSER_CONTROLLER_H_
diff --git a/shell/browser/session_preferences.h b/shell/browser/session_preferences.h
index e02d92ee47e..8f9504abf8f 100644
--- a/shell/browser/session_preferences.h
+++ b/shell/browser/session_preferences.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_SESSION_PREFERENCES_H_
-#define SHELL_BROWSER_SESSION_PREFERENCES_H_
+#ifndef ELECTRON_SHELL_BROWSER_SESSION_PREFERENCES_H_
+#define ELECTRON_SHELL_BROWSER_SESSION_PREFERENCES_H_
 
 #include <vector>
 
@@ -40,4 +40,4 @@ class SessionPreferences : public base::SupportsUserData::Data {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_SESSION_PREFERENCES_H_
+#endif  // ELECTRON_SHELL_BROWSER_SESSION_PREFERENCES_H_
diff --git a/shell/browser/special_storage_policy.h b/shell/browser/special_storage_policy.h
index 2dd9ff30cbb..aa0ac9cca58 100644
--- a/shell/browser/special_storage_policy.h
+++ b/shell/browser/special_storage_policy.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_SPECIAL_STORAGE_POLICY_H_
-#define SHELL_BROWSER_SPECIAL_STORAGE_POLICY_H_
+#ifndef ELECTRON_SHELL_BROWSER_SPECIAL_STORAGE_POLICY_H_
+#define ELECTRON_SHELL_BROWSER_SPECIAL_STORAGE_POLICY_H_
 
 #include "storage/browser/quota/special_storage_policy.h"
 
@@ -28,4 +28,4 @@ class SpecialStoragePolicy : public storage::SpecialStoragePolicy {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_SPECIAL_STORAGE_POLICY_H_
+#endif  // ELECTRON_SHELL_BROWSER_SPECIAL_STORAGE_POLICY_H_
diff --git a/shell/browser/ui/accelerator_util.h b/shell/browser/ui/accelerator_util.h
index 8be1214adf3..c573aeaab22 100644
--- a/shell/browser/ui/accelerator_util.h
+++ b/shell/browser/ui/accelerator_util.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_ACCELERATOR_UTIL_H_
-#define SHELL_BROWSER_UI_ACCELERATOR_UTIL_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_ACCELERATOR_UTIL_H_
+#define ELECTRON_SHELL_BROWSER_UI_ACCELERATOR_UTIL_H_
 
 #include <map>
 #include <string>
@@ -33,4 +33,4 @@ bool TriggerAcceleratorTableCommand(AcceleratorTable* table,
 
 }  // namespace accelerator_util
 
-#endif  // SHELL_BROWSER_UI_ACCELERATOR_UTIL_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_ACCELERATOR_UTIL_H_
diff --git a/shell/browser/ui/autofill_popup.h b/shell/browser/ui/autofill_popup.h
index 1a8ad450370..56a7b0d28c7 100644
--- a/shell/browser/ui/autofill_popup.h
+++ b/shell/browser/ui/autofill_popup.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_AUTOFILL_POPUP_H_
-#define SHELL_BROWSER_UI_AUTOFILL_POPUP_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_AUTOFILL_POPUP_H_
+#define ELECTRON_SHELL_BROWSER_UI_AUTOFILL_POPUP_H_
 
 #include <vector>
 
@@ -90,4 +90,4 @@ class AutofillPopup : public views::ViewObserver {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_AUTOFILL_POPUP_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_AUTOFILL_POPUP_H_
diff --git a/shell/browser/ui/certificate_trust.h b/shell/browser/ui/certificate_trust.h
index 02bd8987bee..fd266d46eca 100644
--- a/shell/browser/ui/certificate_trust.h
+++ b/shell/browser/ui/certificate_trust.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_CERTIFICATE_TRUST_H_
-#define SHELL_BROWSER_UI_CERTIFICATE_TRUST_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_CERTIFICATE_TRUST_H_
+#define ELECTRON_SHELL_BROWSER_UI_CERTIFICATE_TRUST_H_
 
 #include <string>
 
@@ -25,4 +25,4 @@ v8::Local<v8::Promise> ShowCertificateTrust(
 
 }  // namespace certificate_trust
 
-#endif  // SHELL_BROWSER_UI_CERTIFICATE_TRUST_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_CERTIFICATE_TRUST_H_
diff --git a/shell/browser/ui/cocoa/NSColor+Hex.h b/shell/browser/ui/cocoa/NSColor+Hex.h
index cb36d00ef26..b1eba70b2f6 100644
--- a/shell/browser/ui/cocoa/NSColor+Hex.h
+++ b/shell/browser/ui/cocoa/NSColor+Hex.h
@@ -4,8 +4,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_COCOA_NSCOLOR_HEX_H_
-#define SHELL_BROWSER_UI_COCOA_NSCOLOR_HEX_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_COCOA_NSCOLOR_HEX_H_
+#define ELECTRON_SHELL_BROWSER_UI_COCOA_NSCOLOR_HEX_H_
 
 #import <Cocoa/Cocoa.h>
 
@@ -15,4 +15,4 @@
 + (NSColor*)colorWithHexColorString:(NSString*)hex;
 @end
 
-#endif  // SHELL_BROWSER_UI_COCOA_NSCOLOR_HEX_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_COCOA_NSCOLOR_HEX_H_
diff --git a/shell/browser/ui/cocoa/NSString+ANSI.h b/shell/browser/ui/cocoa/NSString+ANSI.h
index 4991b5cb184..b92791a7215 100644
--- a/shell/browser/ui/cocoa/NSString+ANSI.h
+++ b/shell/browser/ui/cocoa/NSString+ANSI.h
@@ -4,8 +4,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_COCOA_NSSTRING_ANSI_H_
-#define SHELL_BROWSER_UI_COCOA_NSSTRING_ANSI_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_COCOA_NSSTRING_ANSI_H_
+#define ELECTRON_SHELL_BROWSER_UI_COCOA_NSSTRING_ANSI_H_
 
 #import <Foundation/Foundation.h>
 
@@ -14,4 +14,4 @@
 - (NSMutableAttributedString*)attributedStringParsingANSICodes;
 @end
 
-#endif  // SHELL_BROWSER_UI_COCOA_NSSTRING_ANSI_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_COCOA_NSSTRING_ANSI_H_
diff --git a/shell/browser/ui/cocoa/delayed_native_view_host.h b/shell/browser/ui/cocoa/delayed_native_view_host.h
index 26f8799f55c..e7020dba607 100644
--- a/shell/browser/ui/cocoa/delayed_native_view_host.h
+++ b/shell/browser/ui/cocoa/delayed_native_view_host.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_COCOA_DELAYED_NATIVE_VIEW_HOST_H_
-#define SHELL_BROWSER_UI_COCOA_DELAYED_NATIVE_VIEW_HOST_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_COCOA_DELAYED_NATIVE_VIEW_HOST_H_
+#define ELECTRON_SHELL_BROWSER_UI_COCOA_DELAYED_NATIVE_VIEW_HOST_H_
 
 #include "ui/views/controls/native/native_view_host.h"
 
@@ -30,4 +30,4 @@ class DelayedNativeViewHost : public views::NativeViewHost {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_COCOA_DELAYED_NATIVE_VIEW_HOST_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_COCOA_DELAYED_NATIVE_VIEW_HOST_H_
diff --git a/shell/browser/ui/cocoa/electron_bundle_mover.h b/shell/browser/ui/cocoa/electron_bundle_mover.h
index e7177f8c7e4..c1c5306dfc8 100644
--- a/shell/browser/ui/cocoa/electron_bundle_mover.h
+++ b/shell/browser/ui/cocoa/electron_bundle_mover.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_COCOA_ELECTRON_BUNDLE_MOVER_H_
-#define SHELL_BROWSER_UI_COCOA_ELECTRON_BUNDLE_MOVER_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_COCOA_ELECTRON_BUNDLE_MOVER_H_
+#define ELECTRON_SHELL_BROWSER_UI_COCOA_ELECTRON_BUNDLE_MOVER_H_
 
 #include <string>
 
@@ -43,4 +43,4 @@ class ElectronBundleMover {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_COCOA_ELECTRON_BUNDLE_MOVER_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_COCOA_ELECTRON_BUNDLE_MOVER_H_
diff --git a/shell/browser/ui/cocoa/electron_inspectable_web_contents_view.h b/shell/browser/ui/cocoa/electron_inspectable_web_contents_view.h
index 2bedbf22f5f..696bf5e89d6 100644
--- a/shell/browser/ui/cocoa/electron_inspectable_web_contents_view.h
+++ b/shell/browser/ui/cocoa/electron_inspectable_web_contents_view.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE-CHROMIUM file.
 
-#ifndef SHELL_BROWSER_UI_COCOA_ELECTRON_INSPECTABLE_WEB_CONTENTS_VIEW_H_
-#define SHELL_BROWSER_UI_COCOA_ELECTRON_INSPECTABLE_WEB_CONTENTS_VIEW_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_COCOA_ELECTRON_INSPECTABLE_WEB_CONTENTS_VIEW_H_
+#define ELECTRON_SHELL_BROWSER_UI_COCOA_ELECTRON_INSPECTABLE_WEB_CONTENTS_VIEW_H_
 
 #import <AppKit/AppKit.h>
 
@@ -52,4 +52,4 @@ using electron::InspectableWebContentsViewMac;
 
 @end
 
-#endif  // SHELL_BROWSER_UI_COCOA_ELECTRON_INSPECTABLE_WEB_CONTENTS_VIEW_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_COCOA_ELECTRON_INSPECTABLE_WEB_CONTENTS_VIEW_H_
diff --git a/shell/browser/ui/cocoa/electron_menu_controller.h b/shell/browser/ui/cocoa/electron_menu_controller.h
index 8a856be08ee..29ba2a503b0 100644
--- a/shell/browser/ui/cocoa/electron_menu_controller.h
+++ b/shell/browser/ui/cocoa/electron_menu_controller.h
@@ -3,8 +3,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_COCOA_ELECTRON_MENU_CONTROLLER_H_
-#define SHELL_BROWSER_UI_COCOA_ELECTRON_MENU_CONTROLLER_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_COCOA_ELECTRON_MENU_CONTROLLER_H_
+#define ELECTRON_SHELL_BROWSER_UI_COCOA_ELECTRON_MENU_CONTROLLER_H_
 
 #import <Cocoa/Cocoa.h>
 
@@ -66,4 +66,4 @@ class ElectronMenuModel;
 
 @end
 
-#endif  // SHELL_BROWSER_UI_COCOA_ELECTRON_MENU_CONTROLLER_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_COCOA_ELECTRON_MENU_CONTROLLER_H_
diff --git a/shell/browser/ui/cocoa/electron_native_widget_mac.h b/shell/browser/ui/cocoa/electron_native_widget_mac.h
index 58a2b812248..7fdfd0433a0 100644
--- a/shell/browser/ui/cocoa/electron_native_widget_mac.h
+++ b/shell/browser/ui/cocoa/electron_native_widget_mac.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_COCOA_ELECTRON_NATIVE_WIDGET_MAC_H_
-#define SHELL_BROWSER_UI_COCOA_ELECTRON_NATIVE_WIDGET_MAC_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_COCOA_ELECTRON_NATIVE_WIDGET_MAC_H_
+#define ELECTRON_SHELL_BROWSER_UI_COCOA_ELECTRON_NATIVE_WIDGET_MAC_H_
 
 #include "ui/views/widget/native_widget_mac.h"
 
@@ -34,4 +34,4 @@ class ElectronNativeWidgetMac : public views::NativeWidgetMac {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_COCOA_ELECTRON_NATIVE_WIDGET_MAC_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_COCOA_ELECTRON_NATIVE_WIDGET_MAC_H_
diff --git a/shell/browser/ui/cocoa/electron_ns_window.h b/shell/browser/ui/cocoa/electron_ns_window.h
index c5adf86469e..50ad1ca8a96 100644
--- a/shell/browser/ui/cocoa/electron_ns_window.h
+++ b/shell/browser/ui/cocoa/electron_ns_window.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_COCOA_ELECTRON_NS_WINDOW_H_
-#define SHELL_BROWSER_UI_COCOA_ELECTRON_NS_WINDOW_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_COCOA_ELECTRON_NS_WINDOW_H_
+#define ELECTRON_SHELL_BROWSER_UI_COCOA_ELECTRON_NS_WINDOW_H_
 
 #include "components/remote_cocoa/app_shim/native_widget_mac_nswindow.h"
 #include "shell/browser/ui/cocoa/event_dispatching_window.h"
@@ -46,4 +46,4 @@ class ScopedDisableResize {
 - (NSImage*)_cornerMask;
 @end
 
-#endif  // SHELL_BROWSER_UI_COCOA_ELECTRON_NS_WINDOW_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_COCOA_ELECTRON_NS_WINDOW_H_
diff --git a/shell/browser/ui/cocoa/electron_ns_window_delegate.h b/shell/browser/ui/cocoa/electron_ns_window_delegate.h
index dca6e9a08fb..fad28319fa0 100644
--- a/shell/browser/ui/cocoa/electron_ns_window_delegate.h
+++ b/shell/browser/ui/cocoa/electron_ns_window_delegate.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_COCOA_ELECTRON_NS_WINDOW_DELEGATE_H_
-#define SHELL_BROWSER_UI_COCOA_ELECTRON_NS_WINDOW_DELEGATE_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_COCOA_ELECTRON_NS_WINDOW_DELEGATE_H_
+#define ELECTRON_SHELL_BROWSER_UI_COCOA_ELECTRON_NS_WINDOW_DELEGATE_H_
 
 #include <Quartz/Quartz.h>
 
@@ -30,4 +30,4 @@ class NativeWindowMac;
 - (id)initWithShell:(electron::NativeWindowMac*)shell;
 @end
 
-#endif  // SHELL_BROWSER_UI_COCOA_ELECTRON_NS_WINDOW_DELEGATE_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_COCOA_ELECTRON_NS_WINDOW_DELEGATE_H_
diff --git a/shell/browser/ui/cocoa/electron_preview_item.h b/shell/browser/ui/cocoa/electron_preview_item.h
index f8172af1834..d8a8069f5d4 100644
--- a/shell/browser/ui/cocoa/electron_preview_item.h
+++ b/shell/browser/ui/cocoa/electron_preview_item.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_COCOA_ELECTRON_PREVIEW_ITEM_H_
-#define SHELL_BROWSER_UI_COCOA_ELECTRON_PREVIEW_ITEM_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_COCOA_ELECTRON_PREVIEW_ITEM_H_
+#define ELECTRON_SHELL_BROWSER_UI_COCOA_ELECTRON_PREVIEW_ITEM_H_
 
 #import <Cocoa/Cocoa.h>
 #import <Quartz/Quartz.h>
@@ -14,4 +14,4 @@
 - (id)initWithURL:(NSURL*)url title:(NSString*)title;
 @end
 
-#endif  // SHELL_BROWSER_UI_COCOA_ELECTRON_PREVIEW_ITEM_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_COCOA_ELECTRON_PREVIEW_ITEM_H_
diff --git a/shell/browser/ui/cocoa/electron_touch_bar.h b/shell/browser/ui/cocoa/electron_touch_bar.h
index 137878d3a6f..9b299d27e99 100644
--- a/shell/browser/ui/cocoa/electron_touch_bar.h
+++ b/shell/browser/ui/cocoa/electron_touch_bar.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_COCOA_ELECTRON_TOUCH_BAR_H_
-#define SHELL_BROWSER_UI_COCOA_ELECTRON_TOUCH_BAR_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_COCOA_ELECTRON_TOUCH_BAR_H_
+#define ELECTRON_SHELL_BROWSER_UI_COCOA_ELECTRON_TOUCH_BAR_H_
 
 #import <Cocoa/Cocoa.h>
 
@@ -96,4 +96,4 @@
 
 @end
 
-#endif  // SHELL_BROWSER_UI_COCOA_ELECTRON_TOUCH_BAR_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_COCOA_ELECTRON_TOUCH_BAR_H_
diff --git a/shell/browser/ui/cocoa/event_dispatching_window.h b/shell/browser/ui/cocoa/event_dispatching_window.h
index 58b08adfcd8..9dcf3e6cc39 100644
--- a/shell/browser/ui/cocoa/event_dispatching_window.h
+++ b/shell/browser/ui/cocoa/event_dispatching_window.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_COCOA_EVENT_DISPATCHING_WINDOW_H_
-#define SHELL_BROWSER_UI_COCOA_EVENT_DISPATCHING_WINDOW_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_COCOA_EVENT_DISPATCHING_WINDOW_H_
+#define ELECTRON_SHELL_BROWSER_UI_COCOA_EVENT_DISPATCHING_WINDOW_H_
 
 #import "ui/base/cocoa/underlay_opengl_hosting_window.h"
 
@@ -16,4 +16,4 @@
 
 @end
 
-#endif  // SHELL_BROWSER_UI_COCOA_EVENT_DISPATCHING_WINDOW_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_COCOA_EVENT_DISPATCHING_WINDOW_H_
diff --git a/shell/browser/ui/cocoa/root_view_mac.h b/shell/browser/ui/cocoa/root_view_mac.h
index 3be7731a54c..3bfd1a10b19 100644
--- a/shell/browser/ui/cocoa/root_view_mac.h
+++ b/shell/browser/ui/cocoa/root_view_mac.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_COCOA_ROOT_VIEW_MAC_H_
-#define SHELL_BROWSER_UI_COCOA_ROOT_VIEW_MAC_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_COCOA_ROOT_VIEW_MAC_H_
+#define ELECTRON_SHELL_BROWSER_UI_COCOA_ROOT_VIEW_MAC_H_
 
 #include "ui/views/view.h"
 
@@ -32,4 +32,4 @@ class RootViewMac : public views::View {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_COCOA_ROOT_VIEW_MAC_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_COCOA_ROOT_VIEW_MAC_H_
diff --git a/shell/browser/ui/cocoa/views_delegate_mac.h b/shell/browser/ui/cocoa/views_delegate_mac.h
index e758854aaaa..440c5f93e3f 100644
--- a/shell/browser/ui/cocoa/views_delegate_mac.h
+++ b/shell/browser/ui/cocoa/views_delegate_mac.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_COCOA_VIEWS_DELEGATE_MAC_H_
-#define SHELL_BROWSER_UI_COCOA_VIEWS_DELEGATE_MAC_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_COCOA_VIEWS_DELEGATE_MAC_H_
+#define ELECTRON_SHELL_BROWSER_UI_COCOA_VIEWS_DELEGATE_MAC_H_
 
 #include "ui/views/views_delegate.h"
 
@@ -27,4 +27,4 @@ class ViewsDelegateMac : public views::ViewsDelegate {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_COCOA_VIEWS_DELEGATE_MAC_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_COCOA_VIEWS_DELEGATE_MAC_H_
diff --git a/shell/browser/ui/cocoa/window_buttons_proxy.h b/shell/browser/ui/cocoa/window_buttons_proxy.h
index 521c5cf110e..53aa4ef3f0d 100644
--- a/shell/browser/ui/cocoa/window_buttons_proxy.h
+++ b/shell/browser/ui/cocoa/window_buttons_proxy.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_COCOA_WINDOW_BUTTONS_PROXY_H_
-#define SHELL_BROWSER_UI_COCOA_WINDOW_BUTTONS_PROXY_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_COCOA_WINDOW_BUTTONS_PROXY_H_
+#define ELECTRON_SHELL_BROWSER_UI_COCOA_WINDOW_BUTTONS_PROXY_H_
 
 #import <Cocoa/Cocoa.h>
 
@@ -56,4 +56,4 @@
 - (void)updateTrackingAreas;
 @end
 
-#endif  // SHELL_BROWSER_UI_COCOA_WINDOW_BUTTONS_PROXY_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_COCOA_WINDOW_BUTTONS_PROXY_H_
diff --git a/shell/browser/ui/devtools_manager_delegate.h b/shell/browser/ui/devtools_manager_delegate.h
index 6ae5b4ed26e..ea9d848cd3b 100644
--- a/shell/browser/ui/devtools_manager_delegate.h
+++ b/shell/browser/ui/devtools_manager_delegate.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE-CHROMIUM file.
 
-#ifndef SHELL_BROWSER_UI_DEVTOOLS_MANAGER_DELEGATE_H_
-#define SHELL_BROWSER_UI_DEVTOOLS_MANAGER_DELEGATE_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_DEVTOOLS_MANAGER_DELEGATE_H_
+#define ELECTRON_SHELL_BROWSER_UI_DEVTOOLS_MANAGER_DELEGATE_H_
 
 #include <string>
 
@@ -36,4 +36,4 @@ class DevToolsManagerDelegate : public content::DevToolsManagerDelegate {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_DEVTOOLS_MANAGER_DELEGATE_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_DEVTOOLS_MANAGER_DELEGATE_H_
diff --git a/shell/browser/ui/devtools_ui.h b/shell/browser/ui/devtools_ui.h
index fdbf758021c..30194d7d203 100644
--- a/shell/browser/ui/devtools_ui.h
+++ b/shell/browser/ui/devtools_ui.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE-CHROMIUM file.
 
-#ifndef SHELL_BROWSER_UI_DEVTOOLS_UI_H_
-#define SHELL_BROWSER_UI_DEVTOOLS_UI_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_DEVTOOLS_UI_H_
+#define ELECTRON_SHELL_BROWSER_UI_DEVTOOLS_UI_H_
 
 #include "base/compiler_specific.h"
 #include "content/public/browser/browser_context.h"
@@ -23,4 +23,4 @@ class DevToolsUI : public content::WebUIController {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_DEVTOOLS_UI_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_DEVTOOLS_UI_H_
diff --git a/shell/browser/ui/drag_util.h b/shell/browser/ui/drag_util.h
index 9fe50a4b59e..6de7808822c 100644
--- a/shell/browser/ui/drag_util.h
+++ b/shell/browser/ui/drag_util.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_DRAG_UTIL_H_
-#define SHELL_BROWSER_UI_DRAG_UTIL_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_DRAG_UTIL_H_
+#define ELECTRON_SHELL_BROWSER_UI_DRAG_UTIL_H_
 
 #include <memory>
 #include <vector>
@@ -34,4 +34,4 @@ std::unique_ptr<SkRegion> DraggableRegionsToSkRegion(
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_DRAG_UTIL_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_DRAG_UTIL_H_
diff --git a/shell/browser/ui/electron_menu_model.h b/shell/browser/ui/electron_menu_model.h
index 3ab6bce60d5..0fb9bcf5731 100644
--- a/shell/browser/ui/electron_menu_model.h
+++ b/shell/browser/ui/electron_menu_model.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_ELECTRON_MENU_MODEL_H_
-#define SHELL_BROWSER_UI_ELECTRON_MENU_MODEL_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_ELECTRON_MENU_MODEL_H_
+#define ELECTRON_SHELL_BROWSER_UI_ELECTRON_MENU_MODEL_H_
 
 #include <map>
 #include <string>
@@ -128,4 +128,4 @@ class ElectronMenuModel : public ui::SimpleMenuModel {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_ELECTRON_MENU_MODEL_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_ELECTRON_MENU_MODEL_H_
diff --git a/shell/browser/ui/file_dialog.h b/shell/browser/ui/file_dialog.h
index 239fcbc1242..3bed2f581b0 100644
--- a/shell/browser/ui/file_dialog.h
+++ b/shell/browser/ui/file_dialog.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_FILE_DIALOG_H_
-#define SHELL_BROWSER_UI_FILE_DIALOG_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_FILE_DIALOG_H_
+#define ELECTRON_SHELL_BROWSER_UI_FILE_DIALOG_H_
 
 #include <string>
 #include <utility>
@@ -74,4 +74,4 @@ void ShowSaveDialog(const DialogSettings& settings,
 
 }  // namespace file_dialog
 
-#endif  // SHELL_BROWSER_UI_FILE_DIALOG_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_FILE_DIALOG_H_
diff --git a/shell/browser/ui/gtk/app_indicator_icon.h b/shell/browser/ui/gtk/app_indicator_icon.h
index 05b0de12f13..3219beb5ee1 100644
--- a/shell/browser/ui/gtk/app_indicator_icon.h
+++ b/shell/browser/ui/gtk/app_indicator_icon.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_GTK_APP_INDICATOR_ICON_H_
-#define SHELL_BROWSER_UI_GTK_APP_INDICATOR_ICON_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_GTK_APP_INDICATOR_ICON_H_
+#define ELECTRON_SHELL_BROWSER_UI_GTK_APP_INDICATOR_ICON_H_
 
 #include <memory>
 #include <string>
@@ -114,4 +114,4 @@ class AppIndicatorIcon : public views::StatusIconLinux {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_GTK_APP_INDICATOR_ICON_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_GTK_APP_INDICATOR_ICON_H_
diff --git a/shell/browser/ui/gtk/app_indicator_icon_menu.h b/shell/browser/ui/gtk/app_indicator_icon_menu.h
index f8b06c2fcf3..e4987eb69df 100644
--- a/shell/browser/ui/gtk/app_indicator_icon_menu.h
+++ b/shell/browser/ui/gtk/app_indicator_icon_menu.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_GTK_APP_INDICATOR_ICON_MENU_H_
-#define SHELL_BROWSER_UI_GTK_APP_INDICATOR_ICON_MENU_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_GTK_APP_INDICATOR_ICON_MENU_H_
+#define ELECTRON_SHELL_BROWSER_UI_GTK_APP_INDICATOR_ICON_MENU_H_
 
 #include "base/callback.h"
 #include "ui/base/glib/glib_signal.h"
@@ -74,4 +74,4 @@ class AppIndicatorIconMenu {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_GTK_APP_INDICATOR_ICON_MENU_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_GTK_APP_INDICATOR_ICON_MENU_H_
diff --git a/shell/browser/ui/gtk/gtk_status_icon.h b/shell/browser/ui/gtk/gtk_status_icon.h
index fb7a1d20f99..b8b67259c67 100644
--- a/shell/browser/ui/gtk/gtk_status_icon.h
+++ b/shell/browser/ui/gtk/gtk_status_icon.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_GTK_GTK_STATUS_ICON_H_
-#define SHELL_BROWSER_UI_GTK_GTK_STATUS_ICON_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_GTK_GTK_STATUS_ICON_H_
+#define ELECTRON_SHELL_BROWSER_UI_GTK_GTK_STATUS_ICON_H_
 
 #include <memory>
 
@@ -62,4 +62,4 @@ class GtkStatusIcon : public views::StatusIconLinux {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_GTK_GTK_STATUS_ICON_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_GTK_GTK_STATUS_ICON_H_
diff --git a/shell/browser/ui/gtk/menu_util.h b/shell/browser/ui/gtk/menu_util.h
index 4dedb7b2566..6d46c49b3f7 100644
--- a/shell/browser/ui/gtk/menu_util.h
+++ b/shell/browser/ui/gtk/menu_util.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_GTK_MENU_UTIL_H_
-#define SHELL_BROWSER_UI_GTK_MENU_UTIL_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_GTK_MENU_UTIL_H_
+#define ELECTRON_SHELL_BROWSER_UI_GTK_MENU_UTIL_H_
 
 #include <gtk/gtk.h>
 
@@ -60,4 +60,4 @@ void SetMenuItemInfo(GtkWidget* widget, void* block_activation_ptr);
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_GTK_MENU_UTIL_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_GTK_MENU_UTIL_H_
diff --git a/shell/browser/ui/gtk/status_icon.h b/shell/browser/ui/gtk/status_icon.h
index 384938ef8e8..10e17f2781f 100644
--- a/shell/browser/ui/gtk/status_icon.h
+++ b/shell/browser/ui/gtk/status_icon.h
@@ -6,8 +6,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_GTK_STATUS_ICON_H_
-#define SHELL_BROWSER_UI_GTK_STATUS_ICON_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_GTK_STATUS_ICON_H_
+#define ELECTRON_SHELL_BROWSER_UI_GTK_STATUS_ICON_H_
 
 #include <memory>
 
@@ -29,4 +29,4 @@ std::unique_ptr<views::StatusIconLinux> CreateLinuxStatusIcon(
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_GTK_STATUS_ICON_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_GTK_STATUS_ICON_H_
diff --git a/shell/browser/ui/gtk_util.h b/shell/browser/ui/gtk_util.h
index 31bfa049e98..ef08333c92c 100644
--- a/shell/browser/ui/gtk_util.h
+++ b/shell/browser/ui/gtk_util.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_GTK_UTIL_H_
-#define SHELL_BROWSER_UI_GTK_UTIL_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_GTK_UTIL_H_
+#define ELECTRON_SHELL_BROWSER_UI_GTK_UTIL_H_
 
 #include <gtk/gtk.h>
 
@@ -25,4 +25,4 @@ GdkPixbuf* GdkPixbufFromSkBitmap(const SkBitmap& bitmap);
 
 }  // namespace gtk_util
 
-#endif  // SHELL_BROWSER_UI_GTK_UTIL_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_GTK_UTIL_H_
diff --git a/shell/browser/ui/inspectable_web_contents.h b/shell/browser/ui/inspectable_web_contents.h
index 34f146efdfb..3650b5300dd 100644
--- a/shell/browser/ui/inspectable_web_contents.h
+++ b/shell/browser/ui/inspectable_web_contents.h
@@ -3,8 +3,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE-CHROMIUM file.
 
-#ifndef SHELL_BROWSER_UI_INSPECTABLE_WEB_CONTENTS_H_
-#define SHELL_BROWSER_UI_INSPECTABLE_WEB_CONTENTS_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_INSPECTABLE_WEB_CONTENTS_H_
+#define ELECTRON_SHELL_BROWSER_UI_INSPECTABLE_WEB_CONTENTS_H_
 
 #include <list>
 #include <map>
@@ -246,4 +246,4 @@ class InspectableWebContents
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_INSPECTABLE_WEB_CONTENTS_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_INSPECTABLE_WEB_CONTENTS_H_
diff --git a/shell/browser/ui/inspectable_web_contents_delegate.h b/shell/browser/ui/inspectable_web_contents_delegate.h
index fce43442124..62abef7485e 100644
--- a/shell/browser/ui/inspectable_web_contents_delegate.h
+++ b/shell/browser/ui/inspectable_web_contents_delegate.h
@@ -3,8 +3,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE-CHROMIUM file.
 
-#ifndef SHELL_BROWSER_UI_INSPECTABLE_WEB_CONTENTS_DELEGATE_H_
-#define SHELL_BROWSER_UI_INSPECTABLE_WEB_CONTENTS_DELEGATE_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_INSPECTABLE_WEB_CONTENTS_DELEGATE_H_
+#define ELECTRON_SHELL_BROWSER_UI_INSPECTABLE_WEB_CONTENTS_DELEGATE_H_
 
 #include <string>
 
@@ -40,4 +40,4 @@ class InspectableWebContentsDelegate {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_INSPECTABLE_WEB_CONTENTS_DELEGATE_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_INSPECTABLE_WEB_CONTENTS_DELEGATE_H_
diff --git a/shell/browser/ui/inspectable_web_contents_view.h b/shell/browser/ui/inspectable_web_contents_view.h
index c5d2be5732e..aa0d194b758 100644
--- a/shell/browser/ui/inspectable_web_contents_view.h
+++ b/shell/browser/ui/inspectable_web_contents_view.h
@@ -3,8 +3,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE-CHROMIUM file.
 
-#ifndef SHELL_BROWSER_UI_INSPECTABLE_WEB_CONTENTS_VIEW_H_
-#define SHELL_BROWSER_UI_INSPECTABLE_WEB_CONTENTS_VIEW_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_INSPECTABLE_WEB_CONTENTS_VIEW_H_
+#define ELECTRON_SHELL_BROWSER_UI_INSPECTABLE_WEB_CONTENTS_VIEW_H_
 
 #include <string>
 
@@ -60,4 +60,4 @@ class InspectableWebContentsView {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_INSPECTABLE_WEB_CONTENTS_VIEW_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_INSPECTABLE_WEB_CONTENTS_VIEW_H_
diff --git a/shell/browser/ui/inspectable_web_contents_view_delegate.h b/shell/browser/ui/inspectable_web_contents_view_delegate.h
index ad51f098812..e8155d25577 100644
--- a/shell/browser/ui/inspectable_web_contents_view_delegate.h
+++ b/shell/browser/ui/inspectable_web_contents_view_delegate.h
@@ -3,8 +3,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE-CHROMIUM file.
 
-#ifndef SHELL_BROWSER_UI_INSPECTABLE_WEB_CONTENTS_VIEW_DELEGATE_H_
-#define SHELL_BROWSER_UI_INSPECTABLE_WEB_CONTENTS_VIEW_DELEGATE_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_INSPECTABLE_WEB_CONTENTS_VIEW_DELEGATE_H_
+#define ELECTRON_SHELL_BROWSER_UI_INSPECTABLE_WEB_CONTENTS_VIEW_DELEGATE_H_
 
 #include <string>
 
@@ -33,4 +33,4 @@ class InspectableWebContentsViewDelegate {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_INSPECTABLE_WEB_CONTENTS_VIEW_DELEGATE_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_INSPECTABLE_WEB_CONTENTS_VIEW_DELEGATE_H_
diff --git a/shell/browser/ui/inspectable_web_contents_view_mac.h b/shell/browser/ui/inspectable_web_contents_view_mac.h
index 8a30bc53291..32b8563137a 100644
--- a/shell/browser/ui/inspectable_web_contents_view_mac.h
+++ b/shell/browser/ui/inspectable_web_contents_view_mac.h
@@ -3,8 +3,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE-CHROMIUM file.
 
-#ifndef SHELL_BROWSER_UI_INSPECTABLE_WEB_CONTENTS_VIEW_MAC_H_
-#define SHELL_BROWSER_UI_INSPECTABLE_WEB_CONTENTS_VIEW_MAC_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_INSPECTABLE_WEB_CONTENTS_VIEW_MAC_H_
+#define ELECTRON_SHELL_BROWSER_UI_INSPECTABLE_WEB_CONTENTS_VIEW_MAC_H_
 
 #include "shell/browser/ui/inspectable_web_contents_view.h"
 
@@ -48,4 +48,4 @@ class InspectableWebContentsViewMac : public InspectableWebContentsView {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_INSPECTABLE_WEB_CONTENTS_VIEW_MAC_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_INSPECTABLE_WEB_CONTENTS_VIEW_MAC_H_
diff --git a/shell/browser/ui/message_box.h b/shell/browser/ui/message_box.h
index d680208ea9a..a3a763bc1e5 100644
--- a/shell/browser/ui/message_box.h
+++ b/shell/browser/ui/message_box.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_MESSAGE_BOX_H_
-#define SHELL_BROWSER_UI_MESSAGE_BOX_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_MESSAGE_BOX_H_
+#define ELECTRON_SHELL_BROWSER_UI_MESSAGE_BOX_H_
 
 #include <string>
 #include <vector>
@@ -61,4 +61,4 @@ void ShowErrorBox(const std::u16string& title, const std::u16string& content);
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_MESSAGE_BOX_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_MESSAGE_BOX_H_
diff --git a/shell/browser/ui/tray_icon.h b/shell/browser/ui/tray_icon.h
index c9caca7e673..ff7040aa644 100644
--- a/shell/browser/ui/tray_icon.h
+++ b/shell/browser/ui/tray_icon.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_TRAY_ICON_H_
-#define SHELL_BROWSER_UI_TRAY_ICON_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_TRAY_ICON_H_
+#define ELECTRON_SHELL_BROWSER_UI_TRAY_ICON_H_
 
 #include <string>
 #include <vector>
@@ -137,4 +137,4 @@ class TrayIcon {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_TRAY_ICON_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_TRAY_ICON_H_
diff --git a/shell/browser/ui/tray_icon_cocoa.h b/shell/browser/ui/tray_icon_cocoa.h
index 308f2b01ada..4db1114cd98 100644
--- a/shell/browser/ui/tray_icon_cocoa.h
+++ b/shell/browser/ui/tray_icon_cocoa.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_TRAY_ICON_COCOA_H_
-#define SHELL_BROWSER_UI_TRAY_ICON_COCOA_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_TRAY_ICON_COCOA_H_
+#define ELECTRON_SHELL_BROWSER_UI_TRAY_ICON_COCOA_H_
 
 #import <Cocoa/Cocoa.h>
 
@@ -48,4 +48,4 @@ class TrayIconCocoa : public TrayIcon {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_TRAY_ICON_COCOA_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_TRAY_ICON_COCOA_H_
diff --git a/shell/browser/ui/tray_icon_gtk.h b/shell/browser/ui/tray_icon_gtk.h
index 5abef5c0d9a..c01621aed24 100644
--- a/shell/browser/ui/tray_icon_gtk.h
+++ b/shell/browser/ui/tray_icon_gtk.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_TRAY_ICON_GTK_H_
-#define SHELL_BROWSER_UI_TRAY_ICON_GTK_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_TRAY_ICON_GTK_H_
+#define ELECTRON_SHELL_BROWSER_UI_TRAY_ICON_GTK_H_
 
 #include <memory>
 #include <string>
@@ -42,4 +42,4 @@ class TrayIconGtk : public TrayIcon, public views::StatusIconLinux::Delegate {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_TRAY_ICON_GTK_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_TRAY_ICON_GTK_H_
diff --git a/shell/browser/ui/tray_icon_observer.h b/shell/browser/ui/tray_icon_observer.h
index aa9e7399756..10c86bcd02d 100644
--- a/shell/browser/ui/tray_icon_observer.h
+++ b/shell/browser/ui/tray_icon_observer.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_TRAY_ICON_OBSERVER_H_
-#define SHELL_BROWSER_UI_TRAY_ICON_OBSERVER_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_TRAY_ICON_OBSERVER_H_
+#define ELECTRON_SHELL_BROWSER_UI_TRAY_ICON_OBSERVER_H_
 
 #include <string>
 #include <vector>
@@ -45,4 +45,4 @@ class TrayIconObserver : public base::CheckedObserver {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_TRAY_ICON_OBSERVER_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_TRAY_ICON_OBSERVER_H_
diff --git a/shell/browser/ui/views/autofill_popup_view.h b/shell/browser/ui/views/autofill_popup_view.h
index 692a41b6825..1f1a1bedd0e 100644
--- a/shell/browser/ui/views/autofill_popup_view.h
+++ b/shell/browser/ui/views/autofill_popup_view.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_VIEWS_AUTOFILL_POPUP_VIEW_H_
-#define SHELL_BROWSER_UI_VIEWS_AUTOFILL_POPUP_VIEW_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_VIEWS_AUTOFILL_POPUP_VIEW_H_
+#define ELECTRON_SHELL_BROWSER_UI_VIEWS_AUTOFILL_POPUP_VIEW_H_
 
 #include <memory>
 
@@ -154,4 +154,4 @@ class AutofillPopupView : public views::WidgetDelegateView,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_VIEWS_AUTOFILL_POPUP_VIEW_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_VIEWS_AUTOFILL_POPUP_VIEW_H_
diff --git a/shell/browser/ui/views/electron_views_delegate.h b/shell/browser/ui/views/electron_views_delegate.h
index 9ad237610d1..67b35617346 100644
--- a/shell/browser/ui/views/electron_views_delegate.h
+++ b/shell/browser/ui/views/electron_views_delegate.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE-CHROMIUM file.
 
-#ifndef SHELL_BROWSER_UI_VIEWS_ELECTRON_VIEWS_DELEGATE_H_
-#define SHELL_BROWSER_UI_VIEWS_ELECTRON_VIEWS_DELEGATE_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_VIEWS_ELECTRON_VIEWS_DELEGATE_H_
+#define ELECTRON_SHELL_BROWSER_UI_VIEWS_ELECTRON_VIEWS_DELEGATE_H_
 
 #include <map>
 #include <memory>
@@ -79,4 +79,4 @@ class ViewsDelegate : public views::ViewsDelegate {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_VIEWS_ELECTRON_VIEWS_DELEGATE_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_VIEWS_ELECTRON_VIEWS_DELEGATE_H_
diff --git a/shell/browser/ui/views/frameless_view.h b/shell/browser/ui/views/frameless_view.h
index ddb55fc74d1..70c6d2c2d2c 100644
--- a/shell/browser/ui/views/frameless_view.h
+++ b/shell/browser/ui/views/frameless_view.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_VIEWS_FRAMELESS_VIEW_H_
-#define SHELL_BROWSER_UI_VIEWS_FRAMELESS_VIEW_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_VIEWS_FRAMELESS_VIEW_H_
+#define ELECTRON_SHELL_BROWSER_UI_VIEWS_FRAMELESS_VIEW_H_
 
 #include "ui/views/window/non_client_view.h"
 
@@ -57,4 +57,4 @@ class FramelessView : public views::NonClientFrameView {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_VIEWS_FRAMELESS_VIEW_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_VIEWS_FRAMELESS_VIEW_H_
diff --git a/shell/browser/ui/views/global_menu_bar_registrar_x11.h b/shell/browser/ui/views/global_menu_bar_registrar_x11.h
index f58b755d486..1519f4c0358 100644
--- a/shell/browser/ui/views/global_menu_bar_registrar_x11.h
+++ b/shell/browser/ui/views/global_menu_bar_registrar_x11.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_VIEWS_GLOBAL_MENU_BAR_REGISTRAR_X11_H_
-#define SHELL_BROWSER_UI_VIEWS_GLOBAL_MENU_BAR_REGISTRAR_X11_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_VIEWS_GLOBAL_MENU_BAR_REGISTRAR_X11_H_
+#define ELECTRON_SHELL_BROWSER_UI_VIEWS_GLOBAL_MENU_BAR_REGISTRAR_X11_H_
 
 #include <gio/gio.h>
 
@@ -60,4 +60,4 @@ class GlobalMenuBarRegistrarX11 {
   std::set<x11::Window> live_windows_;
 };
 
-#endif  // SHELL_BROWSER_UI_VIEWS_GLOBAL_MENU_BAR_REGISTRAR_X11_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_VIEWS_GLOBAL_MENU_BAR_REGISTRAR_X11_H_
diff --git a/shell/browser/ui/views/global_menu_bar_x11.h b/shell/browser/ui/views/global_menu_bar_x11.h
index dad6770e662..2c5adcf31c4 100644
--- a/shell/browser/ui/views/global_menu_bar_x11.h
+++ b/shell/browser/ui/views/global_menu_bar_x11.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_VIEWS_GLOBAL_MENU_BAR_X11_H_
-#define SHELL_BROWSER_UI_VIEWS_GLOBAL_MENU_BAR_X11_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_VIEWS_GLOBAL_MENU_BAR_X11_H_
+#define ELECTRON_SHELL_BROWSER_UI_VIEWS_GLOBAL_MENU_BAR_X11_H_
 
 #include <string>
 
@@ -80,4 +80,4 @@ class GlobalMenuBarX11 {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_VIEWS_GLOBAL_MENU_BAR_X11_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_VIEWS_GLOBAL_MENU_BAR_X11_H_
diff --git a/shell/browser/ui/views/inspectable_web_contents_view_views.h b/shell/browser/ui/views/inspectable_web_contents_view_views.h
index 04d1f9e9f80..beac94c013c 100644
--- a/shell/browser/ui/views/inspectable_web_contents_view_views.h
+++ b/shell/browser/ui/views/inspectable_web_contents_view_views.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE-CHROMIUM file.
 
-#ifndef SHELL_BROWSER_UI_VIEWS_INSPECTABLE_WEB_CONTENTS_VIEW_VIEWS_H_
-#define SHELL_BROWSER_UI_VIEWS_INSPECTABLE_WEB_CONTENTS_VIEW_VIEWS_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_VIEWS_INSPECTABLE_WEB_CONTENTS_VIEW_VIEWS_H_
+#define ELECTRON_SHELL_BROWSER_UI_VIEWS_INSPECTABLE_WEB_CONTENTS_VIEW_VIEWS_H_
 
 #include <memory>
 
@@ -67,4 +67,4 @@ class InspectableWebContentsViewViews : public InspectableWebContentsView,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_VIEWS_INSPECTABLE_WEB_CONTENTS_VIEW_VIEWS_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_VIEWS_INSPECTABLE_WEB_CONTENTS_VIEW_VIEWS_H_
diff --git a/shell/browser/ui/views/menu_bar.h b/shell/browser/ui/views/menu_bar.h
index dc0f0e577f7..359609145c7 100644
--- a/shell/browser/ui/views/menu_bar.h
+++ b/shell/browser/ui/views/menu_bar.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_VIEWS_MENU_BAR_H_
-#define SHELL_BROWSER_UI_VIEWS_MENU_BAR_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_VIEWS_MENU_BAR_H_
+#define ELECTRON_SHELL_BROWSER_UI_VIEWS_MENU_BAR_H_
 
 #include "shell/browser/native_window_observer.h"
 #include "shell/browser/ui/electron_menu_model.h"
@@ -92,4 +92,4 @@ class MenuBar : public views::AccessiblePaneView,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_VIEWS_MENU_BAR_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_VIEWS_MENU_BAR_H_
diff --git a/shell/browser/ui/views/menu_delegate.h b/shell/browser/ui/views/menu_delegate.h
index 726fb887f8c..92153f9773b 100644
--- a/shell/browser/ui/views/menu_delegate.h
+++ b/shell/browser/ui/views/menu_delegate.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_VIEWS_MENU_DELEGATE_H_
-#define SHELL_BROWSER_UI_VIEWS_MENU_DELEGATE_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_VIEWS_MENU_DELEGATE_H_
+#define ELECTRON_SHELL_BROWSER_UI_VIEWS_MENU_DELEGATE_H_
 
 #include <memory>
 
@@ -80,4 +80,4 @@ class MenuDelegate : public views::MenuDelegate {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_VIEWS_MENU_DELEGATE_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_VIEWS_MENU_DELEGATE_H_
diff --git a/shell/browser/ui/views/menu_model_adapter.h b/shell/browser/ui/views/menu_model_adapter.h
index 4c2cedb9eb0..95fc8dbb6ef 100644
--- a/shell/browser/ui/views/menu_model_adapter.h
+++ b/shell/browser/ui/views/menu_model_adapter.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_VIEWS_MENU_MODEL_ADAPTER_H_
-#define SHELL_BROWSER_UI_VIEWS_MENU_MODEL_ADAPTER_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_VIEWS_MENU_MODEL_ADAPTER_H_
+#define ELECTRON_SHELL_BROWSER_UI_VIEWS_MENU_MODEL_ADAPTER_H_
 
 #include "shell/browser/ui/electron_menu_model.h"
 #include "ui/views/controls/menu/menu_model_adapter.h"
@@ -28,4 +28,4 @@ class MenuModelAdapter : public views::MenuModelAdapter {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_VIEWS_MENU_MODEL_ADAPTER_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_VIEWS_MENU_MODEL_ADAPTER_H_
diff --git a/shell/browser/ui/views/native_frame_view.h b/shell/browser/ui/views/native_frame_view.h
index bf7efd10065..8098e43dfbf 100644
--- a/shell/browser/ui/views/native_frame_view.h
+++ b/shell/browser/ui/views/native_frame_view.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_VIEWS_NATIVE_FRAME_VIEW_H_
-#define SHELL_BROWSER_UI_VIEWS_NATIVE_FRAME_VIEW_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_VIEWS_NATIVE_FRAME_VIEW_H_
+#define ELECTRON_SHELL_BROWSER_UI_VIEWS_NATIVE_FRAME_VIEW_H_
 
 #include "ui/views/window/native_frame_view.h"
 
@@ -34,4 +34,4 @@ class NativeFrameView : public views::NativeFrameView {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_VIEWS_NATIVE_FRAME_VIEW_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_VIEWS_NATIVE_FRAME_VIEW_H_
diff --git a/shell/browser/ui/views/root_view.h b/shell/browser/ui/views/root_view.h
index f45714d89d1..d893a42320b 100644
--- a/shell/browser/ui/views/root_view.h
+++ b/shell/browser/ui/views/root_view.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_VIEWS_ROOT_VIEW_H_
-#define SHELL_BROWSER_UI_VIEWS_ROOT_VIEW_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_VIEWS_ROOT_VIEW_H_
+#define ELECTRON_SHELL_BROWSER_UI_VIEWS_ROOT_VIEW_H_
 
 #include <memory>
 
@@ -69,4 +69,4 @@ class RootView : public views::View {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_VIEWS_ROOT_VIEW_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_VIEWS_ROOT_VIEW_H_
diff --git a/shell/browser/ui/views/submenu_button.h b/shell/browser/ui/views/submenu_button.h
index 485af2ea4eb..6419cba0232 100644
--- a/shell/browser/ui/views/submenu_button.h
+++ b/shell/browser/ui/views/submenu_button.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_VIEWS_SUBMENU_BUTTON_H_
-#define SHELL_BROWSER_UI_VIEWS_SUBMENU_BUTTON_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_VIEWS_SUBMENU_BUTTON_H_
+#define ELECTRON_SHELL_BROWSER_UI_VIEWS_SUBMENU_BUTTON_H_
 
 #include <memory>
 
@@ -58,4 +58,4 @@ class SubmenuButton : public views::MenuButton {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_VIEWS_SUBMENU_BUTTON_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_VIEWS_SUBMENU_BUTTON_H_
diff --git a/shell/browser/ui/views/win_caption_button.h b/shell/browser/ui/views/win_caption_button.h
index f57918538ec..aeab07c525a 100644
--- a/shell/browser/ui/views/win_caption_button.h
+++ b/shell/browser/ui/views/win_caption_button.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_VIEWS_WIN_CAPTION_BUTTON_H_
-#define SHELL_BROWSER_UI_VIEWS_WIN_CAPTION_BUTTON_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_VIEWS_WIN_CAPTION_BUTTON_H_
+#define ELECTRON_SHELL_BROWSER_UI_VIEWS_WIN_CAPTION_BUTTON_H_
 
 #include "chrome/browser/ui/view_ids.h"
 #include "ui/base/metadata/metadata_header_macros.h"
@@ -51,4 +51,4 @@ class WinCaptionButton : public views::Button {
 };
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_VIEWS_WIN_CAPTION_BUTTON_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_VIEWS_WIN_CAPTION_BUTTON_H_
diff --git a/shell/browser/ui/views/win_caption_button_container.h b/shell/browser/ui/views/win_caption_button_container.h
index ed36a106b3c..823bfc9380f 100644
--- a/shell/browser/ui/views/win_caption_button_container.h
+++ b/shell/browser/ui/views/win_caption_button_container.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_VIEWS_WIN_CAPTION_BUTTON_CONTAINER_H_
-#define SHELL_BROWSER_UI_VIEWS_WIN_CAPTION_BUTTON_CONTAINER_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_VIEWS_WIN_CAPTION_BUTTON_CONTAINER_H_
+#define ELECTRON_SHELL_BROWSER_UI_VIEWS_WIN_CAPTION_BUTTON_CONTAINER_H_
 
 #include "base/scoped_observation.h"
 #include "ui/base/metadata/metadata_header_macros.h"
@@ -67,4 +67,4 @@ class WinCaptionButtonContainer : public views::View,
 };
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_VIEWS_WIN_CAPTION_BUTTON_CONTAINER_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_VIEWS_WIN_CAPTION_BUTTON_CONTAINER_H_
diff --git a/shell/browser/ui/views/win_frame_view.h b/shell/browser/ui/views/win_frame_view.h
index 7d16facaf5b..81a2991dabb 100644
--- a/shell/browser/ui/views/win_frame_view.h
+++ b/shell/browser/ui/views/win_frame_view.h
@@ -7,8 +7,8 @@
 // Copyright (c) 2012 The Chromium Authors,
 // which is governed by a BSD-style license
 
-#ifndef SHELL_BROWSER_UI_VIEWS_WIN_FRAME_VIEW_H_
-#define SHELL_BROWSER_UI_VIEWS_WIN_FRAME_VIEW_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_VIEWS_WIN_FRAME_VIEW_H_
+#define ELECTRON_SHELL_BROWSER_UI_VIEWS_WIN_FRAME_VIEW_H_
 
 #include "shell/browser/native_window_views.h"
 #include "shell/browser/ui/views/frameless_view.h"
@@ -85,4 +85,4 @@ class WinFrameView : public FramelessView {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_VIEWS_WIN_FRAME_VIEW_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_VIEWS_WIN_FRAME_VIEW_H_
diff --git a/shell/browser/ui/webui/accessibility_ui.h b/shell/browser/ui/webui/accessibility_ui.h
index 34be1bb35a5..8d8dd02721e 100644
--- a/shell/browser/ui/webui/accessibility_ui.h
+++ b/shell/browser/ui/webui/accessibility_ui.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_WEBUI_ACCESSIBILITY_UI_H_
-#define SHELL_BROWSER_UI_WEBUI_ACCESSIBILITY_UI_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_WEBUI_ACCESSIBILITY_UI_H_
+#define ELECTRON_SHELL_BROWSER_UI_WEBUI_ACCESSIBILITY_UI_H_
 
 #include "chrome/browser/accessibility/accessibility_ui.h"
 #include "content/public/browser/web_ui_controller.h"
@@ -35,4 +35,4 @@ class ElectronAccessibilityUIMessageHandler
   void RequestNativeUITree(const base::ListValue* args);
 };
 
-#endif  // SHELL_BROWSER_UI_WEBUI_ACCESSIBILITY_UI_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_WEBUI_ACCESSIBILITY_UI_H_
diff --git a/shell/browser/ui/win/dialog_thread.h b/shell/browser/ui/win/dialog_thread.h
index 49e4c6d20db..80172d272b4 100644
--- a/shell/browser/ui/win/dialog_thread.h
+++ b/shell/browser/ui/win/dialog_thread.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_WIN_DIALOG_THREAD_H_
-#define SHELL_BROWSER_UI_WIN_DIALOG_THREAD_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_WIN_DIALOG_THREAD_H_
+#define ELECTRON_SHELL_BROWSER_UI_WIN_DIALOG_THREAD_H_
 
 #include <utility>
 
@@ -77,4 +77,4 @@ void Run(base::OnceCallback<bool(R*)> execute,
 
 }  // namespace dialog_thread
 
-#endif  // SHELL_BROWSER_UI_WIN_DIALOG_THREAD_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_WIN_DIALOG_THREAD_H_
diff --git a/shell/browser/ui/win/electron_desktop_native_widget_aura.h b/shell/browser/ui/win/electron_desktop_native_widget_aura.h
index ead3d665e53..7da254cab37 100644
--- a/shell/browser/ui/win/electron_desktop_native_widget_aura.h
+++ b/shell/browser/ui/win/electron_desktop_native_widget_aura.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_WIN_ELECTRON_DESKTOP_NATIVE_WIDGET_AURA_H_
-#define SHELL_BROWSER_UI_WIN_ELECTRON_DESKTOP_NATIVE_WIDGET_AURA_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_WIN_ELECTRON_DESKTOP_NATIVE_WIDGET_AURA_H_
+#define ELECTRON_SHELL_BROWSER_UI_WIN_ELECTRON_DESKTOP_NATIVE_WIDGET_AURA_H_
 
 #include "shell/browser/native_window_views.h"
 #include "ui/views/widget/desktop_aura/desktop_native_widget_aura.h"
@@ -44,4 +44,4 @@ class ElectronDesktopNativeWidgetAura : public views::DesktopNativeWidgetAura {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_WIN_ELECTRON_DESKTOP_NATIVE_WIDGET_AURA_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_WIN_ELECTRON_DESKTOP_NATIVE_WIDGET_AURA_H_
diff --git a/shell/browser/ui/win/electron_desktop_window_tree_host_win.h b/shell/browser/ui/win/electron_desktop_window_tree_host_win.h
index 9d13ec569ee..3fd831aae1e 100644
--- a/shell/browser/ui/win/electron_desktop_window_tree_host_win.h
+++ b/shell/browser/ui/win/electron_desktop_window_tree_host_win.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_WIN_ELECTRON_DESKTOP_WINDOW_TREE_HOST_WIN_H_
-#define SHELL_BROWSER_UI_WIN_ELECTRON_DESKTOP_WINDOW_TREE_HOST_WIN_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_WIN_ELECTRON_DESKTOP_WINDOW_TREE_HOST_WIN_H_
+#define ELECTRON_SHELL_BROWSER_UI_WIN_ELECTRON_DESKTOP_WINDOW_TREE_HOST_WIN_H_
 
 #include <windows.h>
 
@@ -43,4 +43,4 @@ class ElectronDesktopWindowTreeHostWin
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_WIN_ELECTRON_DESKTOP_WINDOW_TREE_HOST_WIN_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_WIN_ELECTRON_DESKTOP_WINDOW_TREE_HOST_WIN_H_
diff --git a/shell/browser/ui/win/jump_list.h b/shell/browser/ui/win/jump_list.h
index 13cb037ae95..c175298e11b 100644
--- a/shell/browser/ui/win/jump_list.h
+++ b/shell/browser/ui/win/jump_list.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_WIN_JUMP_LIST_H_
-#define SHELL_BROWSER_UI_WIN_JUMP_LIST_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_WIN_JUMP_LIST_H_
+#define ELECTRON_SHELL_BROWSER_UI_WIN_JUMP_LIST_H_
 
 #include <atlbase.h>
 #include <shobjidl.h>
@@ -120,4 +120,4 @@ class JumpList {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_WIN_JUMP_LIST_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_WIN_JUMP_LIST_H_
diff --git a/shell/browser/ui/win/notify_icon.h b/shell/browser/ui/win/notify_icon.h
index 7968cee0073..15686156018 100644
--- a/shell/browser/ui/win/notify_icon.h
+++ b/shell/browser/ui/win/notify_icon.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_WIN_NOTIFY_ICON_H_
-#define SHELL_BROWSER_UI_WIN_NOTIFY_ICON_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_WIN_NOTIFY_ICON_H_
+#define ELECTRON_SHELL_BROWSER_UI_WIN_NOTIFY_ICON_H_
 
 #include <windows.h>  // windows.h must be included first
 
@@ -107,4 +107,4 @@ class NotifyIcon : public TrayIcon {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_WIN_NOTIFY_ICON_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_WIN_NOTIFY_ICON_H_
diff --git a/shell/browser/ui/win/notify_icon_host.h b/shell/browser/ui/win/notify_icon_host.h
index 3f8c43b0a28..85a7537a3e2 100644
--- a/shell/browser/ui/win/notify_icon_host.h
+++ b/shell/browser/ui/win/notify_icon_host.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_WIN_NOTIFY_ICON_HOST_H_
-#define SHELL_BROWSER_UI_WIN_NOTIFY_ICON_HOST_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_WIN_NOTIFY_ICON_HOST_H_
+#define ELECTRON_SHELL_BROWSER_UI_WIN_NOTIFY_ICON_HOST_H_
 
 #include <windows.h>
 
@@ -68,4 +68,4 @@ class NotifyIconHost {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_WIN_NOTIFY_ICON_HOST_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_WIN_NOTIFY_ICON_HOST_H_
diff --git a/shell/browser/ui/win/taskbar_host.h b/shell/browser/ui/win/taskbar_host.h
index 8c121488b1b..2ca139c6135 100644
--- a/shell/browser/ui/win/taskbar_host.h
+++ b/shell/browser/ui/win/taskbar_host.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_WIN_TASKBAR_HOST_H_
-#define SHELL_BROWSER_UI_WIN_TASKBAR_HOST_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_WIN_TASKBAR_HOST_H_
+#define ELECTRON_SHELL_BROWSER_UI_WIN_TASKBAR_HOST_H_
 
 #include <shobjidl.h>
 #include <wrl/client.h>
@@ -84,4 +84,4 @@ class TaskbarHost {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_WIN_TASKBAR_HOST_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_WIN_TASKBAR_HOST_H_
diff --git a/shell/browser/ui/x/event_disabler.h b/shell/browser/ui/x/event_disabler.h
index 16d778a1da1..7d8a23ac07e 100644
--- a/shell/browser/ui/x/event_disabler.h
+++ b/shell/browser/ui/x/event_disabler.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_X_EVENT_DISABLER_H_
-#define SHELL_BROWSER_UI_X_EVENT_DISABLER_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_X_EVENT_DISABLER_H_
+#define ELECTRON_SHELL_BROWSER_UI_X_EVENT_DISABLER_H_
 
 #include <memory>
 
@@ -31,4 +31,4 @@ class EventDisabler : public ui::EventRewriter {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_X_EVENT_DISABLER_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_X_EVENT_DISABLER_H_
diff --git a/shell/browser/ui/x/window_state_watcher.h b/shell/browser/ui/x/window_state_watcher.h
index 7ccd2b2ad56..525694b105b 100644
--- a/shell/browser/ui/x/window_state_watcher.h
+++ b/shell/browser/ui/x/window_state_watcher.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_X_WINDOW_STATE_WATCHER_H_
-#define SHELL_BROWSER_UI_X_WINDOW_STATE_WATCHER_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_X_WINDOW_STATE_WATCHER_H_
+#define ELECTRON_SHELL_BROWSER_UI_X_WINDOW_STATE_WATCHER_H_
 
 #include "ui/events/platform/x11/x11_event_source.h"
 #include "ui/gfx/x/event.h"
@@ -39,4 +39,4 @@ class WindowStateWatcher : public x11::EventObserver {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_X_WINDOW_STATE_WATCHER_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_X_WINDOW_STATE_WATCHER_H_
diff --git a/shell/browser/ui/x/x_window_utils.h b/shell/browser/ui/x/x_window_utils.h
index 07a36215a8a..0d909f25d64 100644
--- a/shell/browser/ui/x/x_window_utils.h
+++ b/shell/browser/ui/x/x_window_utils.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UI_X_X_WINDOW_UTILS_H_
-#define SHELL_BROWSER_UI_X_X_WINDOW_UTILS_H_
+#ifndef ELECTRON_SHELL_BROWSER_UI_X_X_WINDOW_UTILS_H_
+#define ELECTRON_SHELL_BROWSER_UI_X_X_WINDOW_UTILS_H_
 
 #include <string>
 
@@ -32,4 +32,4 @@ bool IsWindowValid(x11::Window window);
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UI_X_X_WINDOW_UTILS_H_
+#endif  // ELECTRON_SHELL_BROWSER_UI_X_X_WINDOW_UTILS_H_
diff --git a/shell/browser/unresponsive_suppressor.h b/shell/browser/unresponsive_suppressor.h
index ba3883a5882..adb34363e23 100644
--- a/shell/browser/unresponsive_suppressor.h
+++ b/shell/browser/unresponsive_suppressor.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_UNRESPONSIVE_SUPPRESSOR_H_
-#define SHELL_BROWSER_UNRESPONSIVE_SUPPRESSOR_H_
+#ifndef ELECTRON_SHELL_BROWSER_UNRESPONSIVE_SUPPRESSOR_H_
+#define ELECTRON_SHELL_BROWSER_UNRESPONSIVE_SUPPRESSOR_H_
 
 namespace electron {
 
@@ -21,4 +21,4 @@ class UnresponsiveSuppressor {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_UNRESPONSIVE_SUPPRESSOR_H_
+#endif  // ELECTRON_SHELL_BROWSER_UNRESPONSIVE_SUPPRESSOR_H_
diff --git a/shell/browser/web_contents_permission_helper.h b/shell/browser/web_contents_permission_helper.h
index fe6285d9e62..b46ba60056d 100644
--- a/shell/browser/web_contents_permission_helper.h
+++ b/shell/browser/web_contents_permission_helper.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_WEB_CONTENTS_PERMISSION_HELPER_H_
-#define SHELL_BROWSER_WEB_CONTENTS_PERMISSION_HELPER_H_
+#ifndef ELECTRON_SHELL_BROWSER_WEB_CONTENTS_PERMISSION_HELPER_H_
+#define ELECTRON_SHELL_BROWSER_WEB_CONTENTS_PERMISSION_HELPER_H_
 
 #include "base/values.h"
 #include "content/public/browser/media_stream_request.h"
@@ -94,4 +94,4 @@ class WebContentsPermissionHelper
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_WEB_CONTENTS_PERMISSION_HELPER_H_
+#endif  // ELECTRON_SHELL_BROWSER_WEB_CONTENTS_PERMISSION_HELPER_H_
diff --git a/shell/browser/web_contents_preferences.h b/shell/browser/web_contents_preferences.h
index bdf7ca4de3a..0f2e465ec7a 100644
--- a/shell/browser/web_contents_preferences.h
+++ b/shell/browser/web_contents_preferences.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_WEB_CONTENTS_PREFERENCES_H_
-#define SHELL_BROWSER_WEB_CONTENTS_PREFERENCES_H_
+#ifndef ELECTRON_SHELL_BROWSER_WEB_CONTENTS_PREFERENCES_H_
+#define ELECTRON_SHELL_BROWSER_WEB_CONTENTS_PREFERENCES_H_
 
 #include <map>
 #include <string>
@@ -150,4 +150,4 @@ class WebContentsPreferences
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_WEB_CONTENTS_PREFERENCES_H_
+#endif  // ELECTRON_SHELL_BROWSER_WEB_CONTENTS_PREFERENCES_H_
diff --git a/shell/browser/web_contents_zoom_controller.h b/shell/browser/web_contents_zoom_controller.h
index 78f5b1cbab4..9e9feddaa17 100644
--- a/shell/browser/web_contents_zoom_controller.h
+++ b/shell/browser/web_contents_zoom_controller.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_WEB_CONTENTS_ZOOM_CONTROLLER_H_
-#define SHELL_BROWSER_WEB_CONTENTS_ZOOM_CONTROLLER_H_
+#ifndef ELECTRON_SHELL_BROWSER_WEB_CONTENTS_ZOOM_CONTROLLER_H_
+#define ELECTRON_SHELL_BROWSER_WEB_CONTENTS_ZOOM_CONTROLLER_H_
 
 #include "base/observer_list_types.h"
 #include "content/public/browser/host_zoom_map.h"
@@ -121,4 +121,4 @@ class WebContentsZoomController
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_WEB_CONTENTS_ZOOM_CONTROLLER_H_
+#endif  // ELECTRON_SHELL_BROWSER_WEB_CONTENTS_ZOOM_CONTROLLER_H_
diff --git a/shell/browser/web_view_guest_delegate.h b/shell/browser/web_view_guest_delegate.h
index df0fcc1cc72..319c4557a7d 100644
--- a/shell/browser/web_view_guest_delegate.h
+++ b/shell/browser/web_view_guest_delegate.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_WEB_VIEW_GUEST_DELEGATE_H_
-#define SHELL_BROWSER_WEB_VIEW_GUEST_DELEGATE_H_
+#ifndef ELECTRON_SHELL_BROWSER_WEB_VIEW_GUEST_DELEGATE_H_
+#define ELECTRON_SHELL_BROWSER_WEB_VIEW_GUEST_DELEGATE_H_
 
 #include "content/public/browser/browser_plugin_guest_delegate.h"
 #include "shell/browser/web_contents_zoom_controller.h"
@@ -57,4 +57,4 @@ class WebViewGuestDelegate : public content::BrowserPluginGuestDelegate,
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_WEB_VIEW_GUEST_DELEGATE_H_
+#endif  // ELECTRON_SHELL_BROWSER_WEB_VIEW_GUEST_DELEGATE_H_
diff --git a/shell/browser/web_view_manager.h b/shell/browser/web_view_manager.h
index 29b03578808..19d25211ffd 100644
--- a/shell/browser/web_view_manager.h
+++ b/shell/browser/web_view_manager.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_WEB_VIEW_MANAGER_H_
-#define SHELL_BROWSER_WEB_VIEW_MANAGER_H_
+#ifndef ELECTRON_SHELL_BROWSER_WEB_VIEW_MANAGER_H_
+#define ELECTRON_SHELL_BROWSER_WEB_VIEW_MANAGER_H_
 
 #include <map>
 
@@ -42,4 +42,4 @@ class WebViewManager : public content::BrowserPluginGuestManager {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_WEB_VIEW_MANAGER_H_
+#endif  // ELECTRON_SHELL_BROWSER_WEB_VIEW_MANAGER_H_
diff --git a/shell/browser/win/dark_mode.h b/shell/browser/win/dark_mode.h
index 9e83d54ed7e..c6d14f9bfa7 100644
--- a/shell/browser/win/dark_mode.h
+++ b/shell/browser/win/dark_mode.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE-CHROMIUM file.
 
-#ifndef SHELL_BROWSER_WIN_DARK_MODE_H_
-#define SHELL_BROWSER_WIN_DARK_MODE_H_
+#ifndef ELECTRON_SHELL_BROWSER_WIN_DARK_MODE_H_
+#define ELECTRON_SHELL_BROWSER_WIN_DARK_MODE_H_
 
 #ifdef WIN32_LEAN_AND_MEAN
 #include <Windows.h>
@@ -25,4 +25,4 @@ void SetDarkModeForWindow(HWND hWnd, ui::NativeTheme::ThemeSource theme_source);
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_WIN_DARK_MODE_H_
+#endif  // ELECTRON_SHELL_BROWSER_WIN_DARK_MODE_H_
diff --git a/shell/browser/win/scoped_hstring.h b/shell/browser/win/scoped_hstring.h
index d1de62e9c99..d0edfe4ea67 100644
--- a/shell/browser/win/scoped_hstring.h
+++ b/shell/browser/win/scoped_hstring.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE-CHROMIUM file.
 
-#ifndef SHELL_BROWSER_WIN_SCOPED_HSTRING_H_
-#define SHELL_BROWSER_WIN_SCOPED_HSTRING_H_
+#ifndef ELECTRON_SHELL_BROWSER_WIN_SCOPED_HSTRING_H_
+#define ELECTRON_SHELL_BROWSER_WIN_SCOPED_HSTRING_H_
 
 #include <hstring.h>
 #include <windows.h>
@@ -42,4 +42,4 @@ class ScopedHString {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_WIN_SCOPED_HSTRING_H_
+#endif  // ELECTRON_SHELL_BROWSER_WIN_SCOPED_HSTRING_H_
diff --git a/shell/browser/window_list.h b/shell/browser/window_list.h
index affb0140ae4..7d8dd942f41 100644
--- a/shell/browser/window_list.h
+++ b/shell/browser/window_list.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_WINDOW_LIST_H_
-#define SHELL_BROWSER_WINDOW_LIST_H_
+#ifndef ELECTRON_SHELL_BROWSER_WINDOW_LIST_H_
+#define ELECTRON_SHELL_BROWSER_WINDOW_LIST_H_
 
 #include <vector>
 
@@ -62,4 +62,4 @@ class WindowList {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_WINDOW_LIST_H_
+#endif  // ELECTRON_SHELL_BROWSER_WINDOW_LIST_H_
diff --git a/shell/browser/window_list_observer.h b/shell/browser/window_list_observer.h
index 7d0cfd9f9e1..3719b165a4b 100644
--- a/shell/browser/window_list_observer.h
+++ b/shell/browser/window_list_observer.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_WINDOW_LIST_OBSERVER_H_
-#define SHELL_BROWSER_WINDOW_LIST_OBSERVER_H_
+#ifndef ELECTRON_SHELL_BROWSER_WINDOW_LIST_OBSERVER_H_
+#define ELECTRON_SHELL_BROWSER_WINDOW_LIST_OBSERVER_H_
 
 #include "base/observer_list_types.h"
 
@@ -31,4 +31,4 @@ class WindowListObserver : public base::CheckedObserver {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_WINDOW_LIST_OBSERVER_H_
+#endif  // ELECTRON_SHELL_BROWSER_WINDOW_LIST_OBSERVER_H_
diff --git a/shell/browser/zoom_level_delegate.h b/shell/browser/zoom_level_delegate.h
index 771f3f464cf..56dcba7e68e 100644
--- a/shell/browser/zoom_level_delegate.h
+++ b/shell/browser/zoom_level_delegate.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_BROWSER_ZOOM_LEVEL_DELEGATE_H_
-#define SHELL_BROWSER_ZOOM_LEVEL_DELEGATE_H_
+#ifndef ELECTRON_SHELL_BROWSER_ZOOM_LEVEL_DELEGATE_H_
+#define ELECTRON_SHELL_BROWSER_ZOOM_LEVEL_DELEGATE_H_
 
 #include <string>
 
@@ -61,4 +61,4 @@ class ZoomLevelDelegate : public content::ZoomLevelDelegate {
 
 }  // namespace electron
 
-#endif  // SHELL_BROWSER_ZOOM_LEVEL_DELEGATE_H_
+#endif  // ELECTRON_SHELL_BROWSER_ZOOM_LEVEL_DELEGATE_H_
diff --git a/shell/common/api/electron_api_clipboard.h b/shell/common/api/electron_api_clipboard.h
index 22c9582d9df..158e33bb3ba 100644
--- a/shell/common/api/electron_api_clipboard.h
+++ b/shell/common/api/electron_api_clipboard.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_API_ELECTRON_API_CLIPBOARD_H_
-#define SHELL_COMMON_API_ELECTRON_API_CLIPBOARD_H_
+#ifndef ELECTRON_SHELL_COMMON_API_ELECTRON_API_CLIPBOARD_H_
+#define ELECTRON_SHELL_COMMON_API_ELECTRON_API_CLIPBOARD_H_
 
 #include <string>
 #include <vector>
@@ -71,4 +71,4 @@ class Clipboard {
 
 }  // namespace electron
 
-#endif  // SHELL_COMMON_API_ELECTRON_API_CLIPBOARD_H_
+#endif  // ELECTRON_SHELL_COMMON_API_ELECTRON_API_CLIPBOARD_H_
diff --git a/shell/common/api/electron_api_key_weak_map.h b/shell/common/api/electron_api_key_weak_map.h
index fcaede53942..f26fa29297a 100644
--- a/shell/common/api/electron_api_key_weak_map.h
+++ b/shell/common/api/electron_api_key_weak_map.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_API_ELECTRON_API_KEY_WEAK_MAP_H_
-#define SHELL_COMMON_API_ELECTRON_API_KEY_WEAK_MAP_H_
+#ifndef ELECTRON_SHELL_COMMON_API_ELECTRON_API_KEY_WEAK_MAP_H_
+#define ELECTRON_SHELL_COMMON_API_ELECTRON_API_KEY_WEAK_MAP_H_
 
 #include "gin/handle.h"
 #include "shell/common/gin_converters/std_converter.h"
@@ -63,4 +63,4 @@ class KeyWeakMap : public gin_helper::Wrappable<KeyWeakMap<K>> {
 
 }  // namespace electron
 
-#endif  // SHELL_COMMON_API_ELECTRON_API_KEY_WEAK_MAP_H_
+#endif  // ELECTRON_SHELL_COMMON_API_ELECTRON_API_KEY_WEAK_MAP_H_
diff --git a/shell/common/api/electron_api_native_image.h b/shell/common/api/electron_api_native_image.h
index ae8150b9d7c..11bfd45ee76 100644
--- a/shell/common/api/electron_api_native_image.h
+++ b/shell/common/api/electron_api_native_image.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_API_ELECTRON_API_NATIVE_IMAGE_H_
-#define SHELL_COMMON_API_ELECTRON_API_NATIVE_IMAGE_H_
+#ifndef ELECTRON_SHELL_COMMON_API_ELECTRON_API_NATIVE_IMAGE_H_
+#define ELECTRON_SHELL_COMMON_API_ELECTRON_API_NATIVE_IMAGE_H_
 
 #include <map>
 #include <string>
@@ -142,4 +142,4 @@ class NativeImage : public gin::Wrappable<NativeImage> {
 
 }  // namespace electron
 
-#endif  // SHELL_COMMON_API_ELECTRON_API_NATIVE_IMAGE_H_
+#endif  // ELECTRON_SHELL_COMMON_API_ELECTRON_API_NATIVE_IMAGE_H_
diff --git a/shell/common/api/electron_bindings.h b/shell/common/api/electron_bindings.h
index 517764c74bf..3586828d9b4 100644
--- a/shell/common/api/electron_bindings.h
+++ b/shell/common/api/electron_bindings.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_API_ELECTRON_BINDINGS_H_
-#define SHELL_COMMON_API_ELECTRON_BINDINGS_H_
+#ifndef ELECTRON_SHELL_COMMON_API_ELECTRON_BINDINGS_H_
+#define ELECTRON_SHELL_COMMON_API_ELECTRON_BINDINGS_H_
 
 #include <list>
 #include <memory>
@@ -84,4 +84,4 @@ class ElectronBindings {
 
 }  // namespace electron
 
-#endif  // SHELL_COMMON_API_ELECTRON_BINDINGS_H_
+#endif  // ELECTRON_SHELL_COMMON_API_ELECTRON_BINDINGS_H_
diff --git a/shell/common/api/object_life_monitor.h b/shell/common/api/object_life_monitor.h
index 52296a13de1..8cd608f35e8 100644
--- a/shell/common/api/object_life_monitor.h
+++ b/shell/common/api/object_life_monitor.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_API_OBJECT_LIFE_MONITOR_H_
-#define SHELL_COMMON_API_OBJECT_LIFE_MONITOR_H_
+#ifndef ELECTRON_SHELL_COMMON_API_OBJECT_LIFE_MONITOR_H_
+#define ELECTRON_SHELL_COMMON_API_OBJECT_LIFE_MONITOR_H_
 
 #include "base/memory/weak_ptr.h"
 #include "v8/include/v8.h"
@@ -32,4 +32,4 @@ class ObjectLifeMonitor {
 
 }  // namespace electron
 
-#endif  // SHELL_COMMON_API_OBJECT_LIFE_MONITOR_H_
+#endif  // ELECTRON_SHELL_COMMON_API_OBJECT_LIFE_MONITOR_H_
diff --git a/shell/common/application_info.h b/shell/common/application_info.h
index 9ad849cc413..95482bb6768 100644
--- a/shell/common/application_info.h
+++ b/shell/common/application_info.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_APPLICATION_INFO_H_
-#define SHELL_COMMON_APPLICATION_INFO_H_
+#ifndef ELECTRON_SHELL_COMMON_APPLICATION_INFO_H_
+#define ELECTRON_SHELL_COMMON_APPLICATION_INFO_H_
 
 #if defined(OS_WIN)
 #include "shell/browser/win/scoped_hstring.h"
@@ -32,4 +32,4 @@ bool IsRunningInDesktopBridge();
 
 }  // namespace electron
 
-#endif  // SHELL_COMMON_APPLICATION_INFO_H_
+#endif  // ELECTRON_SHELL_COMMON_APPLICATION_INFO_H_
diff --git a/shell/common/asar/archive.h b/shell/common/asar/archive.h
index 34abcb93bea..51e75ec75b3 100644
--- a/shell/common/asar/archive.h
+++ b/shell/common/asar/archive.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_ASAR_ARCHIVE_H_
-#define SHELL_COMMON_ASAR_ARCHIVE_H_
+#ifndef ELECTRON_SHELL_COMMON_ASAR_ARCHIVE_H_
+#define ELECTRON_SHELL_COMMON_ASAR_ARCHIVE_H_
 
 #include <memory>
 #include <string>
@@ -115,4 +115,4 @@ class Archive {
 
 }  // namespace asar
 
-#endif  // SHELL_COMMON_ASAR_ARCHIVE_H_
+#endif  // ELECTRON_SHELL_COMMON_ASAR_ARCHIVE_H_
diff --git a/shell/common/asar/asar_util.h b/shell/common/asar/asar_util.h
index 228a752b086..31b4cf9990e 100644
--- a/shell/common/asar/asar_util.h
+++ b/shell/common/asar/asar_util.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_ASAR_ASAR_UTIL_H_
-#define SHELL_COMMON_ASAR_ASAR_UTIL_H_
+#ifndef ELECTRON_SHELL_COMMON_ASAR_ASAR_UTIL_H_
+#define ELECTRON_SHELL_COMMON_ASAR_ASAR_UTIL_H_
 
 #include <memory>
 #include <string>
@@ -38,4 +38,4 @@ void ValidateIntegrityOrDie(const char* data,
 
 }  // namespace asar
 
-#endif  // SHELL_COMMON_ASAR_ASAR_UTIL_H_
+#endif  // ELECTRON_SHELL_COMMON_ASAR_ASAR_UTIL_H_
diff --git a/shell/common/asar/scoped_temporary_file.h b/shell/common/asar/scoped_temporary_file.h
index 3651ec5a6a9..5fd31a848b2 100644
--- a/shell/common/asar/scoped_temporary_file.h
+++ b/shell/common/asar/scoped_temporary_file.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_ASAR_SCOPED_TEMPORARY_FILE_H_
-#define SHELL_COMMON_ASAR_SCOPED_TEMPORARY_FILE_H_
+#ifndef ELECTRON_SHELL_COMMON_ASAR_SCOPED_TEMPORARY_FILE_H_
+#define ELECTRON_SHELL_COMMON_ASAR_SCOPED_TEMPORARY_FILE_H_
 
 #include "base/files/file_path.h"
 #include "shell/common/asar/archive.h"
@@ -44,4 +44,4 @@ class ScopedTemporaryFile {
 
 }  // namespace asar
 
-#endif  // SHELL_COMMON_ASAR_SCOPED_TEMPORARY_FILE_H_
+#endif  // ELECTRON_SHELL_COMMON_ASAR_SCOPED_TEMPORARY_FILE_H_
diff --git a/shell/common/color_util.h b/shell/common/color_util.h
index 9411e8ae352..88b68cc398f 100644
--- a/shell/common/color_util.h
+++ b/shell/common/color_util.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_COLOR_UTIL_H_
-#define SHELL_COMMON_COLOR_UTIL_H_
+#ifndef ELECTRON_SHELL_COMMON_COLOR_UTIL_H_
+#define ELECTRON_SHELL_COMMON_COLOR_UTIL_H_
 
 #include <string>
 
@@ -21,4 +21,4 @@ std::string ToRGBAHex(SkColor color, bool include_hash = true);
 
 }  // namespace electron
 
-#endif  // SHELL_COMMON_COLOR_UTIL_H_
+#endif  // ELECTRON_SHELL_COMMON_COLOR_UTIL_H_
diff --git a/shell/common/crash_keys.h b/shell/common/crash_keys.h
index 5ad954ed252..70f731d29f3 100644
--- a/shell/common/crash_keys.h
+++ b/shell/common/crash_keys.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_CRASH_KEYS_H_
-#define SHELL_COMMON_CRASH_KEYS_H_
+#ifndef ELECTRON_SHELL_COMMON_CRASH_KEYS_H_
+#define ELECTRON_SHELL_COMMON_CRASH_KEYS_H_
 
 #include <map>
 #include <string>
@@ -27,4 +27,4 @@ void SetPlatformCrashKey();
 
 }  // namespace electron
 
-#endif  // SHELL_COMMON_CRASH_KEYS_H_
+#endif  // ELECTRON_SHELL_COMMON_CRASH_KEYS_H_
diff --git a/shell/common/electron_command_line.h b/shell/common/electron_command_line.h
index defa250791b..0d1aad4e76e 100644
--- a/shell/common/electron_command_line.h
+++ b/shell/common/electron_command_line.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_ELECTRON_COMMAND_LINE_H_
-#define SHELL_COMMON_ELECTRON_COMMAND_LINE_H_
+#ifndef ELECTRON_SHELL_COMMON_ELECTRON_COMMAND_LINE_H_
+#define ELECTRON_SHELL_COMMON_ELECTRON_COMMAND_LINE_H_
 
 #include "base/command_line.h"
 #include "build/build_config.h"
@@ -33,4 +33,4 @@ class ElectronCommandLine {
 
 }  // namespace electron
 
-#endif  // SHELL_COMMON_ELECTRON_COMMAND_LINE_H_
+#endif  // ELECTRON_SHELL_COMMON_ELECTRON_COMMAND_LINE_H_
diff --git a/shell/common/electron_constants.h b/shell/common/electron_constants.h
index ee888baf836..b91b70e6836 100644
--- a/shell/common/electron_constants.h
+++ b/shell/common/electron_constants.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_ELECTRON_CONSTANTS_H_
-#define SHELL_COMMON_ELECTRON_CONSTANTS_H_
+#ifndef ELECTRON_SHELL_COMMON_ELECTRON_CONSTANTS_H_
+#define ELECTRON_SHELL_COMMON_ELECTRON_CONSTANTS_H_
 
 #include "base/files/file_path.h"
 #include "build/build_config.h"
@@ -37,4 +37,4 @@ extern const base::FilePath::CharType kPdfPluginPath[];
 
 }  // namespace electron
 
-#endif  // SHELL_COMMON_ELECTRON_CONSTANTS_H_
+#endif  // ELECTRON_SHELL_COMMON_ELECTRON_CONSTANTS_H_
diff --git a/shell/common/electron_paths.h b/shell/common/electron_paths.h
index e52badaabcb..19bcabb2ed3 100644
--- a/shell/common/electron_paths.h
+++ b/shell/common/electron_paths.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_ELECTRON_PATHS_H_
-#define SHELL_COMMON_ELECTRON_PATHS_H_
+#ifndef ELECTRON_SHELL_COMMON_ELECTRON_PATHS_H_
+#define ELECTRON_SHELL_COMMON_ELECTRON_PATHS_H_
 
 #include "base/base_paths.h"
 
@@ -46,4 +46,4 @@ static_assert(PATH_START < PATH_END, "invalid PATH boundaries");
 
 }  // namespace electron
 
-#endif  // SHELL_COMMON_ELECTRON_PATHS_H_
+#endif  // ELECTRON_SHELL_COMMON_ELECTRON_PATHS_H_
diff --git a/shell/common/extensions/electron_extensions_api_provider.h b/shell/common/extensions/electron_extensions_api_provider.h
index 7e8c0daa91c..1ef972fcfa5 100644
--- a/shell/common/extensions/electron_extensions_api_provider.h
+++ b/shell/common/extensions/electron_extensions_api_provider.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_EXTENSIONS_ELECTRON_EXTENSIONS_API_PROVIDER_H_
-#define SHELL_COMMON_EXTENSIONS_ELECTRON_EXTENSIONS_API_PROVIDER_H_
+#ifndef ELECTRON_SHELL_COMMON_EXTENSIONS_ELECTRON_EXTENSIONS_API_PROVIDER_H_
+#define ELECTRON_SHELL_COMMON_EXTENSIONS_ELECTRON_EXTENSIONS_API_PROVIDER_H_
 
 #include <string>
 
@@ -37,4 +37,4 @@ class ElectronExtensionsAPIProvider : public extensions::ExtensionsAPIProvider {
 
 }  // namespace electron
 
-#endif  // SHELL_COMMON_EXTENSIONS_ELECTRON_EXTENSIONS_API_PROVIDER_H_
+#endif  // ELECTRON_SHELL_COMMON_EXTENSIONS_ELECTRON_EXTENSIONS_API_PROVIDER_H_
diff --git a/shell/common/extensions/electron_extensions_client.h b/shell/common/extensions/electron_extensions_client.h
index 7eebb6e5885..ebc05b0ed08 100644
--- a/shell/common/extensions/electron_extensions_client.h
+++ b/shell/common/extensions/electron_extensions_client.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_EXTENSIONS_ELECTRON_EXTENSIONS_CLIENT_H_
-#define SHELL_COMMON_EXTENSIONS_ELECTRON_EXTENSIONS_CLIENT_H_
+#ifndef ELECTRON_SHELL_COMMON_EXTENSIONS_ELECTRON_EXTENSIONS_CLIENT_H_
+#define ELECTRON_SHELL_COMMON_EXTENSIONS_ELECTRON_EXTENSIONS_CLIENT_H_
 
 #include <string>
 
@@ -62,4 +62,4 @@ class ElectronExtensionsClient : public extensions::ExtensionsClient {
 
 }  // namespace electron
 
-#endif  // SHELL_COMMON_EXTENSIONS_ELECTRON_EXTENSIONS_CLIENT_H_
+#endif  // ELECTRON_SHELL_COMMON_EXTENSIONS_ELECTRON_EXTENSIONS_CLIENT_H_
diff --git a/shell/common/gin_converters/accelerator_converter.h b/shell/common/gin_converters/accelerator_converter.h
index 6c2131e2985..86a4a641678 100644
--- a/shell/common/gin_converters/accelerator_converter.h
+++ b/shell/common/gin_converters/accelerator_converter.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_CONVERTERS_ACCELERATOR_CONVERTER_H_
-#define SHELL_COMMON_GIN_CONVERTERS_ACCELERATOR_CONVERTER_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_CONVERTERS_ACCELERATOR_CONVERTER_H_
+#define ELECTRON_SHELL_COMMON_GIN_CONVERTERS_ACCELERATOR_CONVERTER_H_
 
 #include "gin/converter.h"
 
@@ -22,4 +22,4 @@ struct Converter<ui::Accelerator> {
 
 }  // namespace gin
 
-#endif  // SHELL_COMMON_GIN_CONVERTERS_ACCELERATOR_CONVERTER_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_CONVERTERS_ACCELERATOR_CONVERTER_H_
diff --git a/shell/common/gin_converters/base_converter.h b/shell/common/gin_converters/base_converter.h
index b214af79cc9..f44c64941e0 100644
--- a/shell/common/gin_converters/base_converter.h
+++ b/shell/common/gin_converters/base_converter.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_CONVERTERS_BASE_CONVERTER_H_
-#define SHELL_COMMON_GIN_CONVERTERS_BASE_CONVERTER_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_CONVERTERS_BASE_CONVERTER_H_
+#define ELECTRON_SHELL_COMMON_GIN_CONVERTERS_BASE_CONVERTER_H_
 
 #include "base/process/kill.h"
 #include "gin/converter.h"
@@ -44,4 +44,4 @@ struct Converter<base::TerminationStatus> {
 
 }  // namespace gin
 
-#endif  // SHELL_COMMON_GIN_CONVERTERS_BASE_CONVERTER_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_CONVERTERS_BASE_CONVERTER_H_
diff --git a/shell/common/gin_converters/blink_converter.h b/shell/common/gin_converters/blink_converter.h
index 952033b1472..8ae85d75060 100644
--- a/shell/common/gin_converters/blink_converter.h
+++ b/shell/common/gin_converters/blink_converter.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_CONVERTERS_BLINK_CONVERTER_H_
-#define SHELL_COMMON_GIN_CONVERTERS_BLINK_CONVERTER_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_CONVERTERS_BLINK_CONVERTER_H_
+#define ELECTRON_SHELL_COMMON_GIN_CONVERTERS_BLINK_CONVERTER_H_
 
 #include "gin/converter.h"
 #include "third_party/blink/public/common/context_menu_data/context_menu_data.h"
@@ -120,4 +120,4 @@ v8::Local<v8::Value> MediaFlagsToV8(v8::Isolate* isolate, int mediaFlags);
 
 }  // namespace gin
 
-#endif  // SHELL_COMMON_GIN_CONVERTERS_BLINK_CONVERTER_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_CONVERTERS_BLINK_CONVERTER_H_
diff --git a/shell/common/gin_converters/callback_converter.h b/shell/common/gin_converters/callback_converter.h
index 9342e2fc22c..8682ca94795 100644
--- a/shell/common/gin_converters/callback_converter.h
+++ b/shell/common/gin_converters/callback_converter.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_CONVERTERS_CALLBACK_CONVERTER_H_
-#define SHELL_COMMON_GIN_CONVERTERS_CALLBACK_CONVERTER_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_CONVERTERS_CALLBACK_CONVERTER_H_
+#define ELECTRON_SHELL_COMMON_GIN_CONVERTERS_CALLBACK_CONVERTER_H_
 
 #include <utility>
 
@@ -56,4 +56,4 @@ struct Converter<base::OnceCallback<Sig>> {
 
 }  // namespace gin
 
-#endif  // SHELL_COMMON_GIN_CONVERTERS_CALLBACK_CONVERTER_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_CONVERTERS_CALLBACK_CONVERTER_H_
diff --git a/shell/common/gin_converters/content_converter.h b/shell/common/gin_converters/content_converter.h
index 26621c05a8e..e157b9f4a05 100644
--- a/shell/common/gin_converters/content_converter.h
+++ b/shell/common/gin_converters/content_converter.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_CONVERTERS_CONTENT_CONVERTER_H_
-#define SHELL_COMMON_GIN_CONVERTERS_CONTENT_CONVERTER_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_CONVERTERS_CONTENT_CONVERTER_H_
+#define ELECTRON_SHELL_COMMON_GIN_CONVERTERS_CONTENT_CONVERTER_H_
 
 #include <utility>
 
@@ -88,4 +88,4 @@ struct Converter<content::NativeWebKeyboardEvent> {
 
 }  // namespace gin
 
-#endif  // SHELL_COMMON_GIN_CONVERTERS_CONTENT_CONVERTER_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_CONVERTERS_CONTENT_CONVERTER_H_
diff --git a/shell/common/gin_converters/extension_converter.h b/shell/common/gin_converters/extension_converter.h
index e0d566f6801..83c30ffe6d0 100644
--- a/shell/common/gin_converters/extension_converter.h
+++ b/shell/common/gin_converters/extension_converter.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_CONVERTERS_EXTENSION_CONVERTER_H_
-#define SHELL_COMMON_GIN_CONVERTERS_EXTENSION_CONVERTER_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_CONVERTERS_EXTENSION_CONVERTER_H_
+#define ELECTRON_SHELL_COMMON_GIN_CONVERTERS_EXTENSION_CONVERTER_H_
 
 #include <string>
 
@@ -23,4 +23,4 @@ struct Converter<const extensions::Extension*> {
 
 }  // namespace gin
 
-#endif  // SHELL_COMMON_GIN_CONVERTERS_EXTENSION_CONVERTER_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_CONVERTERS_EXTENSION_CONVERTER_H_
diff --git a/shell/common/gin_converters/file_dialog_converter.h b/shell/common/gin_converters/file_dialog_converter.h
index 16b3b9b0886..c3e608425c5 100644
--- a/shell/common/gin_converters/file_dialog_converter.h
+++ b/shell/common/gin_converters/file_dialog_converter.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_CONVERTERS_FILE_DIALOG_CONVERTER_H_
-#define SHELL_COMMON_GIN_CONVERTERS_FILE_DIALOG_CONVERTER_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_CONVERTERS_FILE_DIALOG_CONVERTER_H_
+#define ELECTRON_SHELL_COMMON_GIN_CONVERTERS_FILE_DIALOG_CONVERTER_H_
 
 #include "gin/converter.h"
 #include "shell/browser/ui/file_dialog.h"
@@ -30,4 +30,4 @@ struct Converter<file_dialog::DialogSettings> {
 
 }  // namespace gin
 
-#endif  // SHELL_COMMON_GIN_CONVERTERS_FILE_DIALOG_CONVERTER_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_CONVERTERS_FILE_DIALOG_CONVERTER_H_
diff --git a/shell/common/gin_converters/file_path_converter.h b/shell/common/gin_converters/file_path_converter.h
index 28d5c4bfda8..2341ff599bc 100644
--- a/shell/common/gin_converters/file_path_converter.h
+++ b/shell/common/gin_converters/file_path_converter.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_CONVERTERS_FILE_PATH_CONVERTER_H_
-#define SHELL_COMMON_GIN_CONVERTERS_FILE_PATH_CONVERTER_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_CONVERTERS_FILE_PATH_CONVERTER_H_
+#define ELECTRON_SHELL_COMMON_GIN_CONVERTERS_FILE_PATH_CONVERTER_H_
 
 #include "base/files/file_path.h"
 #include "gin/converter.h"
@@ -41,4 +41,4 @@ struct Converter<base::FilePath> {
 
 }  // namespace gin
 
-#endif  // SHELL_COMMON_GIN_CONVERTERS_FILE_PATH_CONVERTER_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_CONVERTERS_FILE_PATH_CONVERTER_H_
diff --git a/shell/common/gin_converters/frame_converter.h b/shell/common/gin_converters/frame_converter.h
index a2579ed6019..56f87f598b2 100644
--- a/shell/common/gin_converters/frame_converter.h
+++ b/shell/common/gin_converters/frame_converter.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_CONVERTERS_FRAME_CONVERTER_H_
-#define SHELL_COMMON_GIN_CONVERTERS_FRAME_CONVERTER_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_CONVERTERS_FRAME_CONVERTER_H_
+#define ELECTRON_SHELL_COMMON_GIN_CONVERTERS_FRAME_CONVERTER_H_
 
 #include "gin/converter.h"
 #include "shell/common/gin_helper/accessor.h"
@@ -32,4 +32,4 @@ struct Converter<gin_helper::AccessorValue<content::RenderFrameHost*>> {
 
 }  // namespace gin
 
-#endif  // SHELL_COMMON_GIN_CONVERTERS_FRAME_CONVERTER_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_CONVERTERS_FRAME_CONVERTER_H_
diff --git a/shell/common/gin_converters/gfx_converter.h b/shell/common/gin_converters/gfx_converter.h
index 6c46a98af41..0bf44486455 100644
--- a/shell/common/gin_converters/gfx_converter.h
+++ b/shell/common/gin_converters/gfx_converter.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_CONVERTERS_GFX_CONVERTER_H_
-#define SHELL_COMMON_GIN_CONVERTERS_GFX_CONVERTER_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_CONVERTERS_GFX_CONVERTER_H_
+#define ELECTRON_SHELL_COMMON_GIN_CONVERTERS_GFX_CONVERTER_H_
 
 #include "gin/converter.h"
 
@@ -71,4 +71,4 @@ struct Converter<gfx::ResizeEdge> {
 
 }  // namespace gin
 
-#endif  // SHELL_COMMON_GIN_CONVERTERS_GFX_CONVERTER_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_CONVERTERS_GFX_CONVERTER_H_
diff --git a/shell/common/gin_converters/guid_converter.h b/shell/common/gin_converters/guid_converter.h
index ef7dd7a0d2f..592dab149a6 100644
--- a/shell/common/gin_converters/guid_converter.h
+++ b/shell/common/gin_converters/guid_converter.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_CONVERTERS_GUID_CONVERTER_H_
-#define SHELL_COMMON_GIN_CONVERTERS_GUID_CONVERTER_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_CONVERTERS_GUID_CONVERTER_H_
+#define ELECTRON_SHELL_COMMON_GIN_CONVERTERS_GUID_CONVERTER_H_
 
 #include <string>
 
@@ -83,4 +83,4 @@ struct Converter<UUID> {
 
 }  // namespace gin
 
-#endif  // SHELL_COMMON_GIN_CONVERTERS_GUID_CONVERTER_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_CONVERTERS_GUID_CONVERTER_H_
diff --git a/shell/common/gin_converters/gurl_converter.h b/shell/common/gin_converters/gurl_converter.h
index e0888daa6c2..c63aca14d05 100644
--- a/shell/common/gin_converters/gurl_converter.h
+++ b/shell/common/gin_converters/gurl_converter.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_CONVERTERS_GURL_CONVERTER_H_
-#define SHELL_COMMON_GIN_CONVERTERS_GURL_CONVERTER_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_CONVERTERS_GURL_CONVERTER_H_
+#define ELECTRON_SHELL_COMMON_GIN_CONVERTERS_GURL_CONVERTER_H_
 
 #include <string>
 
@@ -32,4 +32,4 @@ struct Converter<GURL> {
 
 }  // namespace gin
 
-#endif  // SHELL_COMMON_GIN_CONVERTERS_GURL_CONVERTER_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_CONVERTERS_GURL_CONVERTER_H_
diff --git a/shell/common/gin_converters/image_converter.h b/shell/common/gin_converters/image_converter.h
index f4de04fb465..01975e81280 100644
--- a/shell/common/gin_converters/image_converter.h
+++ b/shell/common/gin_converters/image_converter.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_CONVERTERS_IMAGE_CONVERTER_H_
-#define SHELL_COMMON_GIN_CONVERTERS_IMAGE_CONVERTER_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_CONVERTERS_IMAGE_CONVERTER_H_
+#define ELECTRON_SHELL_COMMON_GIN_CONVERTERS_IMAGE_CONVERTER_H_
 
 #include "gin/converter.h"
 
@@ -31,4 +31,4 @@ struct Converter<gfx::Image> {
 
 }  // namespace gin
 
-#endif  // SHELL_COMMON_GIN_CONVERTERS_IMAGE_CONVERTER_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_CONVERTERS_IMAGE_CONVERTER_H_
diff --git a/shell/common/gin_converters/message_box_converter.h b/shell/common/gin_converters/message_box_converter.h
index 15ed2516d44..2949b1cfa58 100644
--- a/shell/common/gin_converters/message_box_converter.h
+++ b/shell/common/gin_converters/message_box_converter.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_CONVERTERS_MESSAGE_BOX_CONVERTER_H_
-#define SHELL_COMMON_GIN_CONVERTERS_MESSAGE_BOX_CONVERTER_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_CONVERTERS_MESSAGE_BOX_CONVERTER_H_
+#define ELECTRON_SHELL_COMMON_GIN_CONVERTERS_MESSAGE_BOX_CONVERTER_H_
 
 #include "gin/converter.h"
 #include "shell/browser/ui/message_box.h"
@@ -19,4 +19,4 @@ struct Converter<electron::MessageBoxSettings> {
 
 }  // namespace gin
 
-#endif  // SHELL_COMMON_GIN_CONVERTERS_MESSAGE_BOX_CONVERTER_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_CONVERTERS_MESSAGE_BOX_CONVERTER_H_
diff --git a/shell/common/gin_converters/native_window_converter.h b/shell/common/gin_converters/native_window_converter.h
index d06440c7fa0..106ca836cd5 100644
--- a/shell/common/gin_converters/native_window_converter.h
+++ b/shell/common/gin_converters/native_window_converter.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_CONVERTERS_NATIVE_WINDOW_CONVERTER_H_
-#define SHELL_COMMON_GIN_CONVERTERS_NATIVE_WINDOW_CONVERTER_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_CONVERTERS_NATIVE_WINDOW_CONVERTER_H_
+#define ELECTRON_SHELL_COMMON_GIN_CONVERTERS_NATIVE_WINDOW_CONVERTER_H_
 
 #include "gin/converter.h"
 #include "shell/browser/api/electron_api_base_window.h"
@@ -32,4 +32,4 @@ struct Converter<electron::NativeWindow*> {
 
 }  // namespace gin
 
-#endif  // SHELL_COMMON_GIN_CONVERTERS_NATIVE_WINDOW_CONVERTER_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_CONVERTERS_NATIVE_WINDOW_CONVERTER_H_
diff --git a/shell/common/gin_converters/net_converter.h b/shell/common/gin_converters/net_converter.h
index db2ea11be11..3a4fd1f3c7c 100644
--- a/shell/common/gin_converters/net_converter.h
+++ b/shell/common/gin_converters/net_converter.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_CONVERTERS_NET_CONVERTER_H_
-#define SHELL_COMMON_GIN_CONVERTERS_NET_CONVERTER_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_CONVERTERS_NET_CONVERTER_H_
+#define ELECTRON_SHELL_COMMON_GIN_CONVERTERS_NET_CONVERTER_H_
 
 #include <string>
 #include <utility>
@@ -140,4 +140,4 @@ struct Converter<std::vector<std::pair<K, V>>> {
 
 }  // namespace gin
 
-#endif  // SHELL_COMMON_GIN_CONVERTERS_NET_CONVERTER_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_CONVERTERS_NET_CONVERTER_H_
diff --git a/shell/common/gin_converters/std_converter.h b/shell/common/gin_converters/std_converter.h
index eb5f87d22e3..23e44e856ce 100644
--- a/shell/common/gin_converters/std_converter.h
+++ b/shell/common/gin_converters/std_converter.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_CONVERTERS_STD_CONVERTER_H_
-#define SHELL_COMMON_GIN_CONVERTERS_STD_CONVERTER_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_CONVERTERS_STD_CONVERTER_H_
+#define ELECTRON_SHELL_COMMON_GIN_CONVERTERS_STD_CONVERTER_H_
 
 #include <map>
 #include <set>
@@ -212,4 +212,4 @@ struct Converter<std::wstring> {
 
 }  // namespace gin
 
-#endif  // SHELL_COMMON_GIN_CONVERTERS_STD_CONVERTER_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_CONVERTERS_STD_CONVERTER_H_
diff --git a/shell/common/gin_converters/time_converter.h b/shell/common/gin_converters/time_converter.h
index 3c4a0539873..7149eaaefed 100644
--- a/shell/common/gin_converters/time_converter.h
+++ b/shell/common/gin_converters/time_converter.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_CONVERTERS_TIME_CONVERTER_H_
-#define SHELL_COMMON_GIN_CONVERTERS_TIME_CONVERTER_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_CONVERTERS_TIME_CONVERTER_H_
+#define ELECTRON_SHELL_COMMON_GIN_CONVERTERS_TIME_CONVERTER_H_
 
 #include "gin/converter.h"
 
@@ -20,4 +20,4 @@ struct Converter<base::Time> {
 
 }  // namespace gin
 
-#endif  // SHELL_COMMON_GIN_CONVERTERS_TIME_CONVERTER_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_CONVERTERS_TIME_CONVERTER_H_
diff --git a/shell/common/gin_converters/value_converter.h b/shell/common/gin_converters/value_converter.h
index d8c42d100a6..16a79af43b9 100644
--- a/shell/common/gin_converters/value_converter.h
+++ b/shell/common/gin_converters/value_converter.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_CONVERTERS_VALUE_CONVERTER_H_
-#define SHELL_COMMON_GIN_CONVERTERS_VALUE_CONVERTER_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_CONVERTERS_VALUE_CONVERTER_H_
+#define ELECTRON_SHELL_COMMON_GIN_CONVERTERS_VALUE_CONVERTER_H_
 
 #include "gin/converter.h"
 
@@ -44,4 +44,4 @@ struct Converter<base::ListValue> {
 
 }  // namespace gin
 
-#endif  // SHELL_COMMON_GIN_CONVERTERS_VALUE_CONVERTER_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_CONVERTERS_VALUE_CONVERTER_H_
diff --git a/shell/common/gin_helper/accessor.h b/shell/common/gin_helper/accessor.h
index 6d258a56d67..5bd0bc9cb4e 100644
--- a/shell/common/gin_helper/accessor.h
+++ b/shell/common/gin_helper/accessor.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_HELPER_ACCESSOR_H_
-#define SHELL_COMMON_GIN_HELPER_ACCESSOR_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_HELPER_ACCESSOR_H_
+#define ELECTRON_SHELL_COMMON_GIN_HELPER_ACCESSOR_H_
 
 namespace gin_helper {
 
@@ -24,4 +24,4 @@ struct AccessorValue<const T*> {
 
 }  // namespace gin_helper
 
-#endif  // SHELL_COMMON_GIN_HELPER_ACCESSOR_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_HELPER_ACCESSOR_H_
diff --git a/shell/common/gin_helper/arguments.h b/shell/common/gin_helper/arguments.h
index 776b951bcb7..81a37f8476e 100644
--- a/shell/common/gin_helper/arguments.h
+++ b/shell/common/gin_helper/arguments.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE.chromium file.
 
-#ifndef SHELL_COMMON_GIN_HELPER_ARGUMENTS_H_
-#define SHELL_COMMON_GIN_HELPER_ARGUMENTS_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_HELPER_ARGUMENTS_H_
+#define ELECTRON_SHELL_COMMON_GIN_HELPER_ARGUMENTS_H_
 
 #include "gin/arguments.h"
 
@@ -48,4 +48,4 @@ class Arguments : public gin::Arguments {
 
 }  // namespace gin_helper
 
-#endif  // SHELL_COMMON_GIN_HELPER_ARGUMENTS_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_HELPER_ARGUMENTS_H_
diff --git a/shell/common/gin_helper/callback.h b/shell/common/gin_helper/callback.h
index f4e54dabed3..a00fa5b5414 100644
--- a/shell/common/gin_helper/callback.h
+++ b/shell/common/gin_helper/callback.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_HELPER_CALLBACK_H_
-#define SHELL_COMMON_GIN_HELPER_CALLBACK_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_HELPER_CALLBACK_H_
+#define ELECTRON_SHELL_COMMON_GIN_HELPER_CALLBACK_H_
 
 #include <utility>
 #include <vector>
@@ -149,4 +149,4 @@ v8::Local<v8::Value> CallbackToV8Leaked(
 
 }  // namespace gin_helper
 
-#endif  // SHELL_COMMON_GIN_HELPER_CALLBACK_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_HELPER_CALLBACK_H_
diff --git a/shell/common/gin_helper/cleaned_up_at_exit.h b/shell/common/gin_helper/cleaned_up_at_exit.h
index f3376c2f450..35d9e1618eb 100644
--- a/shell/common/gin_helper/cleaned_up_at_exit.h
+++ b/shell/common/gin_helper/cleaned_up_at_exit.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_HELPER_CLEANED_UP_AT_EXIT_H_
-#define SHELL_COMMON_GIN_HELPER_CLEANED_UP_AT_EXIT_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_HELPER_CLEANED_UP_AT_EXIT_H_
+#define ELECTRON_SHELL_COMMON_GIN_HELPER_CLEANED_UP_AT_EXIT_H_
 
 namespace gin_helper {
 
@@ -24,4 +24,4 @@ class CleanedUpAtExit {
 
 }  // namespace gin_helper
 
-#endif  // SHELL_COMMON_GIN_HELPER_CLEANED_UP_AT_EXIT_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_HELPER_CLEANED_UP_AT_EXIT_H_
diff --git a/shell/common/gin_helper/constructible.h b/shell/common/gin_helper/constructible.h
index 7dc70740934..c6eaaef330c 100644
--- a/shell/common/gin_helper/constructible.h
+++ b/shell/common/gin_helper/constructible.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_HELPER_CONSTRUCTIBLE_H_
-#define SHELL_COMMON_GIN_HELPER_CONSTRUCTIBLE_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_HELPER_CONSTRUCTIBLE_H_
+#define ELECTRON_SHELL_COMMON_GIN_HELPER_CONSTRUCTIBLE_H_
 
 #include "gin/per_isolate_data.h"
 #include "gin/wrappable.h"
@@ -66,4 +66,4 @@ class Constructible {
 
 }  // namespace gin_helper
 
-#endif  // SHELL_COMMON_GIN_HELPER_CONSTRUCTIBLE_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_HELPER_CONSTRUCTIBLE_H_
diff --git a/shell/common/gin_helper/constructor.h b/shell/common/gin_helper/constructor.h
index efaffd4c4ae..398e76a9af9 100644
--- a/shell/common/gin_helper/constructor.h
+++ b/shell/common/gin_helper/constructor.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_HELPER_CONSTRUCTOR_H_
-#define SHELL_COMMON_GIN_HELPER_CONSTRUCTOR_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_HELPER_CONSTRUCTOR_H_
+#define ELECTRON_SHELL_COMMON_GIN_HELPER_CONSTRUCTOR_H_
 
 #include "shell/common/gin_helper/function_template.h"
 #include "shell/common/gin_helper/wrappable_base.h"
@@ -168,4 +168,4 @@ v8::Local<v8::Function> CreateConstructor(
 
 }  // namespace gin_helper
 
-#endif  // SHELL_COMMON_GIN_HELPER_CONSTRUCTOR_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_HELPER_CONSTRUCTOR_H_
diff --git a/shell/common/gin_helper/destroyable.h b/shell/common/gin_helper/destroyable.h
index fadbdc478c2..20419542d28 100644
--- a/shell/common/gin_helper/destroyable.h
+++ b/shell/common/gin_helper/destroyable.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_HELPER_DESTROYABLE_H_
-#define SHELL_COMMON_GIN_HELPER_DESTROYABLE_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_HELPER_DESTROYABLE_H_
+#define ELECTRON_SHELL_COMMON_GIN_HELPER_DESTROYABLE_H_
 
 #include "v8/include/v8.h"
 
@@ -21,4 +21,4 @@ struct Destroyable {
 
 }  // namespace gin_helper
 
-#endif  // SHELL_COMMON_GIN_HELPER_DESTROYABLE_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_HELPER_DESTROYABLE_H_
diff --git a/shell/common/gin_helper/dictionary.h b/shell/common/gin_helper/dictionary.h
index 7c6368ad397..9d3fd527c37 100644
--- a/shell/common/gin_helper/dictionary.h
+++ b/shell/common/gin_helper/dictionary.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_HELPER_DICTIONARY_H_
-#define SHELL_COMMON_GIN_HELPER_DICTIONARY_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_HELPER_DICTIONARY_H_
+#define ELECTRON_SHELL_COMMON_GIN_HELPER_DICTIONARY_H_
 
 #include <type_traits>
 #include <utility>
@@ -214,4 +214,4 @@ struct Converter<gin_helper::Dictionary> {
 
 }  // namespace gin
 
-#endif  // SHELL_COMMON_GIN_HELPER_DICTIONARY_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_HELPER_DICTIONARY_H_
diff --git a/shell/common/gin_helper/error_thrower.h b/shell/common/gin_helper/error_thrower.h
index 057874e93cc..6089363c423 100644
--- a/shell/common/gin_helper/error_thrower.h
+++ b/shell/common/gin_helper/error_thrower.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_HELPER_ERROR_THROWER_H_
-#define SHELL_COMMON_GIN_HELPER_ERROR_THROWER_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_HELPER_ERROR_THROWER_H_
+#define ELECTRON_SHELL_COMMON_GIN_HELPER_ERROR_THROWER_H_
 
 #include "base/strings/string_piece.h"
 #include "v8/include/v8.h"
@@ -34,4 +34,4 @@ class ErrorThrower {
 
 }  // namespace gin_helper
 
-#endif  // SHELL_COMMON_GIN_HELPER_ERROR_THROWER_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_HELPER_ERROR_THROWER_H_
diff --git a/shell/common/gin_helper/event_emitter.h b/shell/common/gin_helper/event_emitter.h
index 071bdfeda9f..a69b595551f 100644
--- a/shell/common/gin_helper/event_emitter.h
+++ b/shell/common/gin_helper/event_emitter.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_HELPER_EVENT_EMITTER_H_
-#define SHELL_COMMON_GIN_HELPER_EVENT_EMITTER_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_HELPER_EVENT_EMITTER_H_
+#define ELECTRON_SHELL_COMMON_GIN_HELPER_EVENT_EMITTER_H_
 
 #include <utility>
 #include <vector>
@@ -101,4 +101,4 @@ class EventEmitter : public gin_helper::Wrappable<T> {
 
 }  // namespace gin_helper
 
-#endif  // SHELL_COMMON_GIN_HELPER_EVENT_EMITTER_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_HELPER_EVENT_EMITTER_H_
diff --git a/shell/common/gin_helper/event_emitter_caller.h b/shell/common/gin_helper/event_emitter_caller.h
index f2da1fede38..b8a0511a0b9 100644
--- a/shell/common/gin_helper/event_emitter_caller.h
+++ b/shell/common/gin_helper/event_emitter_caller.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_HELPER_EVENT_EMITTER_CALLER_H_
-#define SHELL_COMMON_GIN_HELPER_EVENT_EMITTER_CALLER_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_HELPER_EVENT_EMITTER_CALLER_H_
+#define ELECTRON_SHELL_COMMON_GIN_HELPER_EVENT_EMITTER_CALLER_H_
 
 #include <utility>
 #include <vector>
@@ -88,4 +88,4 @@ v8::Local<v8::Value> CallMethod(gin::Wrappable<T>* object,
 
 }  // namespace gin_helper
 
-#endif  // SHELL_COMMON_GIN_HELPER_EVENT_EMITTER_CALLER_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_HELPER_EVENT_EMITTER_CALLER_H_
diff --git a/shell/common/gin_helper/function_template.h b/shell/common/gin_helper/function_template.h
index edb067f861b..025c917fbc3 100644
--- a/shell/common/gin_helper/function_template.h
+++ b/shell/common/gin_helper/function_template.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE.chromium file.
 
-#ifndef SHELL_COMMON_GIN_HELPER_FUNCTION_TEMPLATE_H_
-#define SHELL_COMMON_GIN_HELPER_FUNCTION_TEMPLATE_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_HELPER_FUNCTION_TEMPLATE_H_
+#define ELECTRON_SHELL_COMMON_GIN_HELPER_FUNCTION_TEMPLATE_H_
 
 #include <utility>
 
@@ -329,4 +329,4 @@ struct CallbackTraits<
 
 }  // namespace gin_helper
 
-#endif  // SHELL_COMMON_GIN_HELPER_FUNCTION_TEMPLATE_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_HELPER_FUNCTION_TEMPLATE_H_
diff --git a/shell/common/gin_helper/function_template_extensions.h b/shell/common/gin_helper/function_template_extensions.h
index a83ad1c7eb8..7420ffde724 100644
--- a/shell/common/gin_helper/function_template_extensions.h
+++ b/shell/common/gin_helper/function_template_extensions.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE.chromium file.
 
-#ifndef SHELL_COMMON_GIN_HELPER_FUNCTION_TEMPLATE_EXTENSIONS_H_
-#define SHELL_COMMON_GIN_HELPER_FUNCTION_TEMPLATE_EXTENSIONS_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_HELPER_FUNCTION_TEMPLATE_EXTENSIONS_H_
+#define ELECTRON_SHELL_COMMON_GIN_HELPER_FUNCTION_TEMPLATE_EXTENSIONS_H_
 
 #include <utility>
 
@@ -57,4 +57,4 @@ v8::Local<v8::FunctionTemplate> CreateConstructorFunctionTemplate(
 
 }  // namespace gin
 
-#endif  // SHELL_COMMON_GIN_HELPER_FUNCTION_TEMPLATE_EXTENSIONS_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_HELPER_FUNCTION_TEMPLATE_EXTENSIONS_H_
diff --git a/shell/common/gin_helper/locker.h b/shell/common/gin_helper/locker.h
index ae92f92de50..825fe4880f6 100644
--- a/shell/common/gin_helper/locker.h
+++ b/shell/common/gin_helper/locker.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE.chromium file.
 
-#ifndef SHELL_COMMON_GIN_HELPER_LOCKER_H_
-#define SHELL_COMMON_GIN_HELPER_LOCKER_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_HELPER_LOCKER_H_
+#define ELECTRON_SHELL_COMMON_GIN_HELPER_LOCKER_H_
 
 #include <memory>
 
@@ -34,4 +34,4 @@ class Locker {
 
 }  // namespace gin_helper
 
-#endif  // SHELL_COMMON_GIN_HELPER_LOCKER_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_HELPER_LOCKER_H_
diff --git a/shell/common/gin_helper/microtasks_scope.h b/shell/common/gin_helper/microtasks_scope.h
index 119b67cb042..23815a09081 100644
--- a/shell/common/gin_helper/microtasks_scope.h
+++ b/shell/common/gin_helper/microtasks_scope.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_HELPER_MICROTASKS_SCOPE_H_
-#define SHELL_COMMON_GIN_HELPER_MICROTASKS_SCOPE_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_HELPER_MICROTASKS_SCOPE_H_
+#define ELECTRON_SHELL_COMMON_GIN_HELPER_MICROTASKS_SCOPE_H_
 
 #include <memory>
 
@@ -31,4 +31,4 @@ class MicrotasksScope {
 
 }  // namespace gin_helper
 
-#endif  // SHELL_COMMON_GIN_HELPER_MICROTASKS_SCOPE_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_HELPER_MICROTASKS_SCOPE_H_
diff --git a/shell/common/gin_helper/object_template_builder.h b/shell/common/gin_helper/object_template_builder.h
index 722d6f78bfa..5ec9761beef 100644
--- a/shell/common/gin_helper/object_template_builder.h
+++ b/shell/common/gin_helper/object_template_builder.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_HELPER_OBJECT_TEMPLATE_BUILDER_H_
-#define SHELL_COMMON_GIN_HELPER_OBJECT_TEMPLATE_BUILDER_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_HELPER_OBJECT_TEMPLATE_BUILDER_H_
+#define ELECTRON_SHELL_COMMON_GIN_HELPER_OBJECT_TEMPLATE_BUILDER_H_
 
 #include "shell/common/gin_helper/function_template.h"
 
@@ -74,4 +74,4 @@ class ObjectTemplateBuilder {
 
 }  // namespace gin_helper
 
-#endif  // SHELL_COMMON_GIN_HELPER_OBJECT_TEMPLATE_BUILDER_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_HELPER_OBJECT_TEMPLATE_BUILDER_H_
diff --git a/shell/common/gin_helper/persistent_dictionary.h b/shell/common/gin_helper/persistent_dictionary.h
index e73da7ab259..8bc19d822ce 100644
--- a/shell/common/gin_helper/persistent_dictionary.h
+++ b/shell/common/gin_helper/persistent_dictionary.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by MIT license that can be found in the
 // LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_HELPER_PERSISTENT_DICTIONARY_H_
-#define SHELL_COMMON_GIN_HELPER_PERSISTENT_DICTIONARY_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_HELPER_PERSISTENT_DICTIONARY_H_
+#define ELECTRON_SHELL_COMMON_GIN_HELPER_PERSISTENT_DICTIONARY_H_
 
 #include "shell/common/gin_helper/dictionary.h"
 
@@ -60,4 +60,4 @@ struct Converter<gin_helper::PersistentDictionary> {
 
 }  // namespace gin
 
-#endif  // SHELL_COMMON_GIN_HELPER_PERSISTENT_DICTIONARY_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_HELPER_PERSISTENT_DICTIONARY_H_
diff --git a/shell/common/gin_helper/pinnable.h b/shell/common/gin_helper/pinnable.h
index ca129d66446..42b98f55179 100644
--- a/shell/common/gin_helper/pinnable.h
+++ b/shell/common/gin_helper/pinnable.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_HELPER_PINNABLE_H_
-#define SHELL_COMMON_GIN_HELPER_PINNABLE_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_HELPER_PINNABLE_H_
+#define ELECTRON_SHELL_COMMON_GIN_HELPER_PINNABLE_H_
 
 #include "v8/include/v8.h"
 
@@ -31,4 +31,4 @@ class Pinnable {
 
 }  // namespace gin_helper
 
-#endif  // SHELL_COMMON_GIN_HELPER_PINNABLE_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_HELPER_PINNABLE_H_
diff --git a/shell/common/gin_helper/promise.h b/shell/common/gin_helper/promise.h
index 58e91998fac..961ce961a65 100644
--- a/shell/common/gin_helper/promise.h
+++ b/shell/common/gin_helper/promise.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_HELPER_PROMISE_H_
-#define SHELL_COMMON_GIN_HELPER_PROMISE_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_HELPER_PROMISE_H_
+#define ELECTRON_SHELL_COMMON_GIN_HELPER_PROMISE_H_
 
 #include <string>
 #include <tuple>
@@ -181,4 +181,4 @@ struct Converter<gin_helper::Promise<T>> {
 
 }  // namespace gin
 
-#endif  // SHELL_COMMON_GIN_HELPER_PROMISE_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_HELPER_PROMISE_H_
diff --git a/shell/common/gin_helper/trackable_object.h b/shell/common/gin_helper/trackable_object.h
index 09ccd273c29..309e412e8a6 100644
--- a/shell/common/gin_helper/trackable_object.h
+++ b/shell/common/gin_helper/trackable_object.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_GIN_HELPER_TRACKABLE_OBJECT_H_
-#define SHELL_COMMON_GIN_HELPER_TRACKABLE_OBJECT_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_HELPER_TRACKABLE_OBJECT_H_
+#define ELECTRON_SHELL_COMMON_GIN_HELPER_TRACKABLE_OBJECT_H_
 
 #include <vector>
 
@@ -137,4 +137,4 @@ electron::KeyWeakMap<int32_t>* TrackableObject<T>::weak_map_ = nullptr;
 
 }  // namespace gin_helper
 
-#endif  // SHELL_COMMON_GIN_HELPER_TRACKABLE_OBJECT_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_HELPER_TRACKABLE_OBJECT_H_
diff --git a/shell/common/gin_helper/wrappable.h b/shell/common/gin_helper/wrappable.h
index 1ed16233e2a..4e1ece6c6fc 100644
--- a/shell/common/gin_helper/wrappable.h
+++ b/shell/common/gin_helper/wrappable.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE.chromium file.
 
-#ifndef SHELL_COMMON_GIN_HELPER_WRAPPABLE_H_
-#define SHELL_COMMON_GIN_HELPER_WRAPPABLE_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_HELPER_WRAPPABLE_H_
+#define ELECTRON_SHELL_COMMON_GIN_HELPER_WRAPPABLE_H_
 
 #include "base/bind.h"
 #include "gin/per_isolate_data.h"
@@ -98,4 +98,4 @@ struct Converter<
 
 }  // namespace gin
 
-#endif  // SHELL_COMMON_GIN_HELPER_WRAPPABLE_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_HELPER_WRAPPABLE_H_
diff --git a/shell/common/gin_helper/wrappable_base.h b/shell/common/gin_helper/wrappable_base.h
index 4b70a91fa24..87ba126d17d 100644
--- a/shell/common/gin_helper/wrappable_base.h
+++ b/shell/common/gin_helper/wrappable_base.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE.chromium file.
 
-#ifndef SHELL_COMMON_GIN_HELPER_WRAPPABLE_BASE_H_
-#define SHELL_COMMON_GIN_HELPER_WRAPPABLE_BASE_H_
+#ifndef ELECTRON_SHELL_COMMON_GIN_HELPER_WRAPPABLE_BASE_H_
+#define ELECTRON_SHELL_COMMON_GIN_HELPER_WRAPPABLE_BASE_H_
 
 #include "v8/include/v8.h"
 
@@ -67,4 +67,4 @@ class WrappableBase {
 
 }  // namespace gin_helper
 
-#endif  // SHELL_COMMON_GIN_HELPER_WRAPPABLE_BASE_H_
+#endif  // ELECTRON_SHELL_COMMON_GIN_HELPER_WRAPPABLE_BASE_H_
diff --git a/shell/common/heap_snapshot.h b/shell/common/heap_snapshot.h
index ef544aa0530..63f0b0beadc 100644
--- a/shell/common/heap_snapshot.h
+++ b/shell/common/heap_snapshot.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_HEAP_SNAPSHOT_H_
-#define SHELL_COMMON_HEAP_SNAPSHOT_H_
+#ifndef ELECTRON_SHELL_COMMON_HEAP_SNAPSHOT_H_
+#define ELECTRON_SHELL_COMMON_HEAP_SNAPSHOT_H_
 
 namespace base {
 class File;
@@ -19,4 +19,4 @@ bool TakeHeapSnapshot(v8::Isolate* isolate, base::File* file);
 
 }  // namespace electron
 
-#endif  // SHELL_COMMON_HEAP_SNAPSHOT_H_
+#endif  // ELECTRON_SHELL_COMMON_HEAP_SNAPSHOT_H_
diff --git a/shell/common/key_weak_map.h b/shell/common/key_weak_map.h
index 147e683ce79..09111d48dcd 100644
--- a/shell/common/key_weak_map.h
+++ b/shell/common/key_weak_map.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_KEY_WEAK_MAP_H_
-#define SHELL_COMMON_KEY_WEAK_MAP_H_
+#ifndef ELECTRON_SHELL_COMMON_KEY_WEAK_MAP_H_
+#define ELECTRON_SHELL_COMMON_KEY_WEAK_MAP_H_
 
 #include <unordered_map>
 #include <utility>
@@ -85,4 +85,4 @@ class KeyWeakMap {
 
 }  // namespace electron
 
-#endif  // SHELL_COMMON_KEY_WEAK_MAP_H_
+#endif  // ELECTRON_SHELL_COMMON_KEY_WEAK_MAP_H_
diff --git a/shell/common/keyboard_util.h b/shell/common/keyboard_util.h
index 9469661841a..d4c4bf22464 100644
--- a/shell/common/keyboard_util.h
+++ b/shell/common/keyboard_util.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_KEYBOARD_UTIL_H_
-#define SHELL_COMMON_KEYBOARD_UTIL_H_
+#ifndef ELECTRON_SHELL_COMMON_KEYBOARD_UTIL_H_
+#define ELECTRON_SHELL_COMMON_KEYBOARD_UTIL_H_
 
 #include <string>
 
@@ -24,4 +24,4 @@ ui::KeyboardCode KeyboardCodeFromStr(const std::string& str,
 
 }  // namespace electron
 
-#endif  // SHELL_COMMON_KEYBOARD_UTIL_H_
+#endif  // ELECTRON_SHELL_COMMON_KEYBOARD_UTIL_H_
diff --git a/shell/common/language_util.h b/shell/common/language_util.h
index eac23ad4ed6..ccb81ccd2b3 100644
--- a/shell/common/language_util.h
+++ b/shell/common/language_util.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_LANGUAGE_UTIL_H_
-#define SHELL_COMMON_LANGUAGE_UTIL_H_
+#ifndef ELECTRON_SHELL_COMMON_LANGUAGE_UTIL_H_
+#define ELECTRON_SHELL_COMMON_LANGUAGE_UTIL_H_
 
 #include <string>
 #include <vector>
@@ -16,4 +16,4 @@ std::vector<std::string> GetPreferredLanguages();
 
 }  // namespace electron
 
-#endif  // SHELL_COMMON_LANGUAGE_UTIL_H_
+#endif  // ELECTRON_SHELL_COMMON_LANGUAGE_UTIL_H_
diff --git a/shell/common/logging.h b/shell/common/logging.h
index d7b9e209710..c6b35b08fee 100644
--- a/shell/common/logging.h
+++ b/shell/common/logging.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_LOGGING_H_
-#define SHELL_COMMON_LOGGING_H_
+#ifndef ELECTRON_SHELL_COMMON_LOGGING_H_
+#define ELECTRON_SHELL_COMMON_LOGGING_H_
 
 namespace base {
 class CommandLine;
@@ -19,4 +19,4 @@ base::FilePath GetLogFileName(const base::CommandLine& command_line);
 
 }  // namespace logging
 
-#endif  // SHELL_COMMON_LOGGING_H_
+#endif  // ELECTRON_SHELL_COMMON_LOGGING_H_
diff --git a/shell/common/mac/main_application_bundle.h b/shell/common/mac/main_application_bundle.h
index ec9f97bd3f6..7b36dad77ba 100644
--- a/shell/common/mac/main_application_bundle.h
+++ b/shell/common/mac/main_application_bundle.h
@@ -3,8 +3,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE-CHROMIUM file.
 
-#ifndef SHELL_COMMON_MAC_MAIN_APPLICATION_BUNDLE_H_
-#define SHELL_COMMON_MAC_MAIN_APPLICATION_BUNDLE_H_
+#ifndef ELECTRON_SHELL_COMMON_MAC_MAIN_APPLICATION_BUNDLE_H_
+#define ELECTRON_SHELL_COMMON_MAC_MAIN_APPLICATION_BUNDLE_H_
 
 #ifdef __OBJC__
 @class NSBundle;
@@ -27,4 +27,4 @@ base::FilePath MainApplicationBundlePath();
 
 }  // namespace electron
 
-#endif  // SHELL_COMMON_MAC_MAIN_APPLICATION_BUNDLE_H_
+#endif  // ELECTRON_SHELL_COMMON_MAC_MAIN_APPLICATION_BUNDLE_H_
diff --git a/shell/common/mouse_util.h b/shell/common/mouse_util.h
index 4826f9b0c10..6e8a0fb7cdf 100644
--- a/shell/common/mouse_util.h
+++ b/shell/common/mouse_util.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_MOUSE_UTIL_H_
-#define SHELL_COMMON_MOUSE_UTIL_H_
+#ifndef ELECTRON_SHELL_COMMON_MOUSE_UTIL_H_
+#define ELECTRON_SHELL_COMMON_MOUSE_UTIL_H_
 
 #include <string>
 #include "content/common/cursors/webcursor.h"
@@ -31,4 +31,4 @@ std::string CursorTypeToString(const ui::Cursor& cursor);
 
 }  // namespace electron
 
-#endif  // SHELL_COMMON_MOUSE_UTIL_H_
+#endif  // ELECTRON_SHELL_COMMON_MOUSE_UTIL_H_
diff --git a/shell/common/node_bindings.h b/shell/common/node_bindings.h
index b65576ced86..9789d0b687a 100644
--- a/shell/common/node_bindings.h
+++ b/shell/common/node_bindings.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_NODE_BINDINGS_H_
-#define SHELL_COMMON_NODE_BINDINGS_H_
+#ifndef ELECTRON_SHELL_COMMON_NODE_BINDINGS_H_
+#define ELECTRON_SHELL_COMMON_NODE_BINDINGS_H_
 
 #include <type_traits>
 
@@ -170,4 +170,4 @@ class NodeBindings {
 
 }  // namespace electron
 
-#endif  // SHELL_COMMON_NODE_BINDINGS_H_
+#endif  // ELECTRON_SHELL_COMMON_NODE_BINDINGS_H_
diff --git a/shell/common/node_bindings_linux.h b/shell/common/node_bindings_linux.h
index a14daae9959..aca06dd0f59 100644
--- a/shell/common/node_bindings_linux.h
+++ b/shell/common/node_bindings_linux.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_NODE_BINDINGS_LINUX_H_
-#define SHELL_COMMON_NODE_BINDINGS_LINUX_H_
+#ifndef ELECTRON_SHELL_COMMON_NODE_BINDINGS_LINUX_H_
+#define ELECTRON_SHELL_COMMON_NODE_BINDINGS_LINUX_H_
 
 #include "base/compiler_specific.h"
 #include "shell/common/node_bindings.h"
@@ -29,4 +29,4 @@ class NodeBindingsLinux : public NodeBindings {
 
 }  // namespace electron
 
-#endif  // SHELL_COMMON_NODE_BINDINGS_LINUX_H_
+#endif  // ELECTRON_SHELL_COMMON_NODE_BINDINGS_LINUX_H_
diff --git a/shell/common/node_bindings_mac.h b/shell/common/node_bindings_mac.h
index 8403bf9602f..2e54f2fc9a2 100644
--- a/shell/common/node_bindings_mac.h
+++ b/shell/common/node_bindings_mac.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_NODE_BINDINGS_MAC_H_
-#define SHELL_COMMON_NODE_BINDINGS_MAC_H_
+#ifndef ELECTRON_SHELL_COMMON_NODE_BINDINGS_MAC_H_
+#define ELECTRON_SHELL_COMMON_NODE_BINDINGS_MAC_H_
 
 #include "base/compiler_specific.h"
 #include "shell/common/node_bindings.h"
@@ -26,4 +26,4 @@ class NodeBindingsMac : public NodeBindings {
 
 }  // namespace electron
 
-#endif  // SHELL_COMMON_NODE_BINDINGS_MAC_H_
+#endif  // ELECTRON_SHELL_COMMON_NODE_BINDINGS_MAC_H_
diff --git a/shell/common/node_bindings_win.h b/shell/common/node_bindings_win.h
index badaba6eb12..0a5eed2237e 100644
--- a/shell/common/node_bindings_win.h
+++ b/shell/common/node_bindings_win.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_NODE_BINDINGS_WIN_H_
-#define SHELL_COMMON_NODE_BINDINGS_WIN_H_
+#ifndef ELECTRON_SHELL_COMMON_NODE_BINDINGS_WIN_H_
+#define ELECTRON_SHELL_COMMON_NODE_BINDINGS_WIN_H_
 
 #include "base/compiler_specific.h"
 #include "shell/common/node_bindings.h"
@@ -21,4 +21,4 @@ class NodeBindingsWin : public NodeBindings {
 
 }  // namespace electron
 
-#endif  // SHELL_COMMON_NODE_BINDINGS_WIN_H_
+#endif  // ELECTRON_SHELL_COMMON_NODE_BINDINGS_WIN_H_
diff --git a/shell/common/node_includes.h b/shell/common/node_includes.h
index 91904db21af..f4f026df663 100644
--- a/shell/common/node_includes.h
+++ b/shell/common/node_includes.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_NODE_INCLUDES_H_
-#define SHELL_COMMON_NODE_INCLUDES_H_
+#ifndef ELECTRON_SHELL_COMMON_NODE_INCLUDES_H_
+#define ELECTRON_SHELL_COMMON_NODE_INCLUDES_H_
 
 // Include common headers for using node APIs.
 
@@ -36,4 +36,4 @@
 #define NODE_LINKED_MODULE_CONTEXT_AWARE(modname, regfunc) \
   NODE_MODULE_CONTEXT_AWARE_CPP(modname, regfunc, nullptr, NM_F_LINKED)
 
-#endif  // SHELL_COMMON_NODE_INCLUDES_H_
+#endif  // ELECTRON_SHELL_COMMON_NODE_INCLUDES_H_
diff --git a/shell/common/node_util.h b/shell/common/node_util.h
index a27f224918d..fd7db87a469 100644
--- a/shell/common/node_util.h
+++ b/shell/common/node_util.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_NODE_UTIL_H_
-#define SHELL_COMMON_NODE_UTIL_H_
+#ifndef ELECTRON_SHELL_COMMON_NODE_UTIL_H_
+#define ELECTRON_SHELL_COMMON_NODE_UTIL_H_
 
 #include <vector>
 
@@ -33,4 +33,4 @@ v8::MaybeLocal<v8::Value> CompileAndCall(
 
 }  // namespace electron
 
-#endif  // SHELL_COMMON_NODE_UTIL_H_
+#endif  // ELECTRON_SHELL_COMMON_NODE_UTIL_H_
diff --git a/shell/common/options_switches.h b/shell/common/options_switches.h
index bf800586853..a082c76afa4 100644
--- a/shell/common/options_switches.h
+++ b/shell/common/options_switches.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_OPTIONS_SWITCHES_H_
-#define SHELL_COMMON_OPTIONS_SWITCHES_H_
+#ifndef ELECTRON_SHELL_COMMON_OPTIONS_SWITCHES_H_
+#define ELECTRON_SHELL_COMMON_OPTIONS_SWITCHES_H_
 
 #include "electron/buildflags/buildflags.h"
 
@@ -139,4 +139,4 @@ extern const char kEnableWebSQL[];
 
 }  // namespace electron
 
-#endif  // SHELL_COMMON_OPTIONS_SWITCHES_H_
+#endif  // ELECTRON_SHELL_COMMON_OPTIONS_SWITCHES_H_
diff --git a/shell/common/platform_util.h b/shell/common/platform_util.h
index b9e801f055a..dd59a212c4f 100644
--- a/shell/common/platform_util.h
+++ b/shell/common/platform_util.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_PLATFORM_UTIL_H_
-#define SHELL_COMMON_PLATFORM_UTIL_H_
+#ifndef ELECTRON_SHELL_COMMON_PLATFORM_UTIL_H_
+#define ELECTRON_SHELL_COMMON_PLATFORM_UTIL_H_
 
 #include <string>
 
@@ -60,4 +60,4 @@ bool GetDesktopName(std::string* setme);
 
 }  // namespace platform_util
 
-#endif  // SHELL_COMMON_PLATFORM_UTIL_H_
+#endif  // ELECTRON_SHELL_COMMON_PLATFORM_UTIL_H_
diff --git a/shell/common/platform_util_internal.h b/shell/common/platform_util_internal.h
index bb5574ca26d..9a3681bed5a 100644
--- a/shell/common/platform_util_internal.h
+++ b/shell/common/platform_util_internal.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_PLATFORM_UTIL_INTERNAL_H_
-#define SHELL_COMMON_PLATFORM_UTIL_INTERNAL_H_
+#ifndef ELECTRON_SHELL_COMMON_PLATFORM_UTIL_INTERNAL_H_
+#define ELECTRON_SHELL_COMMON_PLATFORM_UTIL_INTERNAL_H_
 
 #include "shell/common/platform_util.h"
 
@@ -23,4 +23,4 @@ bool PlatformTrashItem(const base::FilePath& path, std::string* error);
 }  // namespace internal
 }  // namespace platform_util
 
-#endif  // SHELL_COMMON_PLATFORM_UTIL_INTERNAL_H_
+#endif  // ELECTRON_SHELL_COMMON_PLATFORM_UTIL_INTERNAL_H_
diff --git a/shell/common/process_util.h b/shell/common/process_util.h
index e66430758c2..bd08b102662 100644
--- a/shell/common/process_util.h
+++ b/shell/common/process_util.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_PROCESS_UTIL_H_
-#define SHELL_COMMON_PROCESS_UTIL_H_
+#ifndef ELECTRON_SHELL_COMMON_PROCESS_UTIL_H_
+#define ELECTRON_SHELL_COMMON_PROCESS_UTIL_H_
 
 #include <string>
 
@@ -19,4 +19,4 @@ void EmitWarning(node::Environment* env,
 
 }  // namespace electron
 
-#endif  // SHELL_COMMON_PROCESS_UTIL_H_
+#endif  // ELECTRON_SHELL_COMMON_PROCESS_UTIL_H_
diff --git a/shell/common/skia_util.h b/shell/common/skia_util.h
index 2c21b40f9b8..148aa4d34ae 100644
--- a/shell/common/skia_util.h
+++ b/shell/common/skia_util.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_SKIA_UTIL_H_
-#define SHELL_COMMON_SKIA_UTIL_H_
+#ifndef ELECTRON_SHELL_COMMON_SKIA_UTIL_H_
+#define ELECTRON_SHELL_COMMON_SKIA_UTIL_H_
 
 namespace base {
 class FilePath;
@@ -45,4 +45,4 @@ bool ReadImageSkiaFromICO(gfx::ImageSkia* image, HICON icon);
 
 }  // namespace electron
 
-#endif  // SHELL_COMMON_SKIA_UTIL_H_
+#endif  // ELECTRON_SHELL_COMMON_SKIA_UTIL_H_
diff --git a/shell/common/v8_value_converter.h b/shell/common/v8_value_converter.h
index 5d6a932163a..5a1c5e21b90 100644
--- a/shell/common/v8_value_converter.h
+++ b/shell/common/v8_value_converter.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_V8_VALUE_CONVERTER_H_
-#define SHELL_COMMON_V8_VALUE_CONVERTER_H_
+#ifndef ELECTRON_SHELL_COMMON_V8_VALUE_CONVERTER_H_
+#define ELECTRON_SHELL_COMMON_V8_VALUE_CONVERTER_H_
 
 #include <memory>
 
@@ -75,4 +75,4 @@ class V8ValueConverter {
 
 }  // namespace electron
 
-#endif  // SHELL_COMMON_V8_VALUE_CONVERTER_H_
+#endif  // ELECTRON_SHELL_COMMON_V8_VALUE_CONVERTER_H_
diff --git a/shell/common/v8_value_serializer.h b/shell/common/v8_value_serializer.h
index 1a2513a6497..b75ed82a322 100644
--- a/shell/common/v8_value_serializer.h
+++ b/shell/common/v8_value_serializer.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_V8_VALUE_SERIALIZER_H_
-#define SHELL_COMMON_V8_VALUE_SERIALIZER_H_
+#ifndef ELECTRON_SHELL_COMMON_V8_VALUE_SERIALIZER_H_
+#define ELECTRON_SHELL_COMMON_V8_VALUE_SERIALIZER_H_
 
 #include "base/containers/span.h"
 
@@ -30,4 +30,4 @@ v8::Local<v8::Value> DeserializeV8Value(v8::Isolate* isolate,
 
 }  // namespace electron
 
-#endif  // SHELL_COMMON_V8_VALUE_SERIALIZER_H_
+#endif  // ELECTRON_SHELL_COMMON_V8_VALUE_SERIALIZER_H_
diff --git a/shell/common/world_ids.h b/shell/common/world_ids.h
index 90fa6c07f5c..aee655a3a6a 100644
--- a/shell/common/world_ids.h
+++ b/shell/common/world_ids.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_COMMON_WORLD_IDS_H_
-#define SHELL_COMMON_WORLD_IDS_H_
+#ifndef ELECTRON_SHELL_COMMON_WORLD_IDS_H_
+#define ELECTRON_SHELL_COMMON_WORLD_IDS_H_
 
 #include "third_party/blink/renderer/platform/bindings/dom_wrapper_world.h"  // nogncheck
 
@@ -27,4 +27,4 @@ enum WorldIDs : int32_t {
 
 }  // namespace electron
 
-#endif  // SHELL_COMMON_WORLD_IDS_H_
+#endif  // ELECTRON_SHELL_COMMON_WORLD_IDS_H_
diff --git a/shell/renderer/api/context_bridge/object_cache.h b/shell/renderer/api/context_bridge/object_cache.h
index 0bf6a623d1e..4d6a2dbd2f9 100644
--- a/shell/renderer/api/context_bridge/object_cache.h
+++ b/shell/renderer/api/context_bridge/object_cache.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_RENDERER_API_CONTEXT_BRIDGE_OBJECT_CACHE_H_
-#define SHELL_RENDERER_API_CONTEXT_BRIDGE_OBJECT_CACHE_H_
+#ifndef ELECTRON_SHELL_RENDERER_API_CONTEXT_BRIDGE_OBJECT_CACHE_H_
+#define ELECTRON_SHELL_RENDERER_API_CONTEXT_BRIDGE_OBJECT_CACHE_H_
 
 #include <forward_list>
 #include <unordered_map>
@@ -44,4 +44,4 @@ class ObjectCache final {
 
 }  // namespace electron
 
-#endif  // SHELL_RENDERER_API_CONTEXT_BRIDGE_OBJECT_CACHE_H_
+#endif  // ELECTRON_SHELL_RENDERER_API_CONTEXT_BRIDGE_OBJECT_CACHE_H_
diff --git a/shell/renderer/api/electron_api_context_bridge.h b/shell/renderer/api/electron_api_context_bridge.h
index 10392e5959c..86f793904eb 100644
--- a/shell/renderer/api/electron_api_context_bridge.h
+++ b/shell/renderer/api/electron_api_context_bridge.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_RENDERER_API_ELECTRON_API_CONTEXT_BRIDGE_H_
-#define SHELL_RENDERER_API_ELECTRON_API_CONTEXT_BRIDGE_H_
+#ifndef ELECTRON_SHELL_RENDERER_API_ELECTRON_API_CONTEXT_BRIDGE_H_
+#define ELECTRON_SHELL_RENDERER_API_ELECTRON_API_CONTEXT_BRIDGE_H_
 
 #include "shell/renderer/api/context_bridge/object_cache.h"
 #include "v8/include/v8.h"
@@ -55,4 +55,4 @@ v8::MaybeLocal<v8::Object> CreateProxyForAPI(
 
 }  // namespace electron
 
-#endif  // SHELL_RENDERER_API_ELECTRON_API_CONTEXT_BRIDGE_H_
+#endif  // ELECTRON_SHELL_RENDERER_API_ELECTRON_API_CONTEXT_BRIDGE_H_
diff --git a/shell/renderer/api/electron_api_spell_check_client.h b/shell/renderer/api/electron_api_spell_check_client.h
index 749bf76dc7f..d0b0a9b1956 100644
--- a/shell/renderer/api/electron_api_spell_check_client.h
+++ b/shell/renderer/api/electron_api_spell_check_client.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_RENDERER_API_ELECTRON_API_SPELL_CHECK_CLIENT_H_
-#define SHELL_RENDERER_API_ELECTRON_API_SPELL_CHECK_CLIENT_H_
+#ifndef ELECTRON_SHELL_RENDERER_API_ELECTRON_API_SPELL_CHECK_CLIENT_H_
+#define ELECTRON_SHELL_RENDERER_API_ELECTRON_API_SPELL_CHECK_CLIENT_H_
 
 #include <memory>
 #include <set>
@@ -113,4 +113,4 @@ class SpellCheckClient : public blink::WebSpellCheckPanelHostClient,
 
 }  // namespace electron
 
-#endif  // SHELL_RENDERER_API_ELECTRON_API_SPELL_CHECK_CLIENT_H_
+#endif  // ELECTRON_SHELL_RENDERER_API_ELECTRON_API_SPELL_CHECK_CLIENT_H_
diff --git a/shell/renderer/browser_exposed_renderer_interfaces.h b/shell/renderer/browser_exposed_renderer_interfaces.h
index 97e32ba7687..c98c7bb23e4 100644
--- a/shell/renderer/browser_exposed_renderer_interfaces.h
+++ b/shell/renderer/browser_exposed_renderer_interfaces.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_RENDERER_BROWSER_EXPOSED_RENDERER_INTERFACES_H_
-#define SHELL_RENDERER_BROWSER_EXPOSED_RENDERER_INTERFACES_H_
+#ifndef ELECTRON_SHELL_RENDERER_BROWSER_EXPOSED_RENDERER_INTERFACES_H_
+#define ELECTRON_SHELL_RENDERER_BROWSER_EXPOSED_RENDERER_INTERFACES_H_
 
 namespace mojo {
 class BinderMap;
@@ -19,4 +19,4 @@ void ExposeElectronRendererInterfacesToBrowser(
     electron::RendererClientBase* client,
     mojo::BinderMap* binders);
 
-#endif  // SHELL_RENDERER_BROWSER_EXPOSED_RENDERER_INTERFACES_H_
+#endif  // ELECTRON_SHELL_RENDERER_BROWSER_EXPOSED_RENDERER_INTERFACES_H_
diff --git a/shell/renderer/content_settings_observer.h b/shell/renderer/content_settings_observer.h
index 46b1cc26f0c..ca73c13a78a 100644
--- a/shell/renderer/content_settings_observer.h
+++ b/shell/renderer/content_settings_observer.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_RENDERER_CONTENT_SETTINGS_OBSERVER_H_
-#define SHELL_RENDERER_CONTENT_SETTINGS_OBSERVER_H_
+#ifndef ELECTRON_SHELL_RENDERER_CONTENT_SETTINGS_OBSERVER_H_
+#define ELECTRON_SHELL_RENDERER_CONTENT_SETTINGS_OBSERVER_H_
 
 #include "base/compiler_specific.h"
 #include "content/public/renderer/render_frame_observer.h"
@@ -31,4 +31,4 @@ class ContentSettingsObserver : public content::RenderFrameObserver,
 
 }  // namespace electron
 
-#endif  // SHELL_RENDERER_CONTENT_SETTINGS_OBSERVER_H_
+#endif  // ELECTRON_SHELL_RENDERER_CONTENT_SETTINGS_OBSERVER_H_
diff --git a/shell/renderer/electron_api_service_impl.h b/shell/renderer/electron_api_service_impl.h
index 7318118be75..51225208f44 100644
--- a/shell/renderer/electron_api_service_impl.h
+++ b/shell/renderer/electron_api_service_impl.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_RENDERER_ELECTRON_API_SERVICE_IMPL_H_
-#define SHELL_RENDERER_ELECTRON_API_SERVICE_IMPL_H_
+#ifndef ELECTRON_SHELL_RENDERER_ELECTRON_API_SERVICE_IMPL_H_
+#define ELECTRON_SHELL_RENDERER_ELECTRON_API_SERVICE_IMPL_H_
 
 #include <string>
 
@@ -70,4 +70,4 @@ class ElectronApiServiceImpl : public mojom::ElectronRenderer,
 
 }  // namespace electron
 
-#endif  // SHELL_RENDERER_ELECTRON_API_SERVICE_IMPL_H_
+#endif  // ELECTRON_SHELL_RENDERER_ELECTRON_API_SERVICE_IMPL_H_
diff --git a/shell/renderer/electron_autofill_agent.h b/shell/renderer/electron_autofill_agent.h
index 365ad1cd7f7..86bd9fa8f39 100644
--- a/shell/renderer/electron_autofill_agent.h
+++ b/shell/renderer/electron_autofill_agent.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_RENDERER_ELECTRON_AUTOFILL_AGENT_H_
-#define SHELL_RENDERER_ELECTRON_AUTOFILL_AGENT_H_
+#ifndef ELECTRON_SHELL_RENDERER_ELECTRON_AUTOFILL_AGENT_H_
+#define ELECTRON_SHELL_RENDERER_ELECTRON_AUTOFILL_AGENT_H_
 
 #include <vector>
 
@@ -93,4 +93,4 @@ class AutofillAgent : public content::RenderFrameObserver,
 
 }  // namespace electron
 
-#endif  // SHELL_RENDERER_ELECTRON_AUTOFILL_AGENT_H_
+#endif  // ELECTRON_SHELL_RENDERER_ELECTRON_AUTOFILL_AGENT_H_
diff --git a/shell/renderer/electron_render_frame_observer.h b/shell/renderer/electron_render_frame_observer.h
index 55eac80df65..bbfd4970489 100644
--- a/shell/renderer/electron_render_frame_observer.h
+++ b/shell/renderer/electron_render_frame_observer.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_RENDERER_ELECTRON_RENDER_FRAME_OBSERVER_H_
-#define SHELL_RENDERER_ELECTRON_RENDER_FRAME_OBSERVER_H_
+#ifndef ELECTRON_SHELL_RENDERER_ELECTRON_RENDER_FRAME_OBSERVER_H_
+#define ELECTRON_SHELL_RENDERER_ELECTRON_RENDER_FRAME_OBSERVER_H_
 
 #include <string>
 
@@ -50,4 +50,4 @@ class ElectronRenderFrameObserver : public content::RenderFrameObserver {
 
 }  // namespace electron
 
-#endif  // SHELL_RENDERER_ELECTRON_RENDER_FRAME_OBSERVER_H_
+#endif  // ELECTRON_SHELL_RENDERER_ELECTRON_RENDER_FRAME_OBSERVER_H_
diff --git a/shell/renderer/electron_renderer_client.h b/shell/renderer/electron_renderer_client.h
index 4c308dfdbe9..53e3d670947 100644
--- a/shell/renderer/electron_renderer_client.h
+++ b/shell/renderer/electron_renderer_client.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_RENDERER_ELECTRON_RENDERER_CLIENT_H_
-#define SHELL_RENDERER_ELECTRON_RENDERER_CLIENT_H_
+#ifndef ELECTRON_SHELL_RENDERER_ELECTRON_RENDERER_CLIENT_H_
+#define ELECTRON_SHELL_RENDERER_ELECTRON_RENDERER_CLIENT_H_
 
 #include <memory>
 #include <set>
@@ -66,4 +66,4 @@ class ElectronRendererClient : public RendererClientBase {
 
 }  // namespace electron
 
-#endif  // SHELL_RENDERER_ELECTRON_RENDERER_CLIENT_H_
+#endif  // ELECTRON_SHELL_RENDERER_ELECTRON_RENDERER_CLIENT_H_
diff --git a/shell/renderer/electron_renderer_pepper_host_factory.h b/shell/renderer/electron_renderer_pepper_host_factory.h
index c4398a15846..b9588680c08 100644
--- a/shell/renderer/electron_renderer_pepper_host_factory.h
+++ b/shell/renderer/electron_renderer_pepper_host_factory.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_RENDERER_ELECTRON_RENDERER_PEPPER_HOST_FACTORY_H_
-#define SHELL_RENDERER_ELECTRON_RENDERER_PEPPER_HOST_FACTORY_H_
+#ifndef ELECTRON_SHELL_RENDERER_ELECTRON_RENDERER_PEPPER_HOST_FACTORY_H_
+#define ELECTRON_SHELL_RENDERER_ELECTRON_RENDERER_PEPPER_HOST_FACTORY_H_
 
 #include <memory>
 
@@ -37,4 +37,4 @@ class ElectronRendererPepperHostFactory : public ppapi::host::HostFactory {
   content::RendererPpapiHost* host_;
 };
 
-#endif  // SHELL_RENDERER_ELECTRON_RENDERER_PEPPER_HOST_FACTORY_H_
+#endif  // ELECTRON_SHELL_RENDERER_ELECTRON_RENDERER_PEPPER_HOST_FACTORY_H_
diff --git a/shell/renderer/electron_sandboxed_renderer_client.h b/shell/renderer/electron_sandboxed_renderer_client.h
index 545ceb9b784..3647893a75e 100644
--- a/shell/renderer/electron_sandboxed_renderer_client.h
+++ b/shell/renderer/electron_sandboxed_renderer_client.h
@@ -1,8 +1,8 @@
 // Copyright (c) 2016 GitHub, Inc.
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
-#ifndef SHELL_RENDERER_ELECTRON_SANDBOXED_RENDERER_CLIENT_H_
-#define SHELL_RENDERER_ELECTRON_SANDBOXED_RENDERER_CLIENT_H_
+#ifndef ELECTRON_SHELL_RENDERER_ELECTRON_SANDBOXED_RENDERER_CLIENT_H_
+#define ELECTRON_SHELL_RENDERER_ELECTRON_SANDBOXED_RENDERER_CLIENT_H_
 
 #include <memory>
 #include <set>
@@ -55,4 +55,4 @@ class ElectronSandboxedRendererClient : public RendererClientBase {
 
 }  // namespace electron
 
-#endif  // SHELL_RENDERER_ELECTRON_SANDBOXED_RENDERER_CLIENT_H_
+#endif  // ELECTRON_SHELL_RENDERER_ELECTRON_SANDBOXED_RENDERER_CLIENT_H_
diff --git a/shell/renderer/extensions/electron_extensions_dispatcher_delegate.h b/shell/renderer/extensions/electron_extensions_dispatcher_delegate.h
index b66edc5fdc2..1b1d1f9ec3e 100644
--- a/shell/renderer/extensions/electron_extensions_dispatcher_delegate.h
+++ b/shell/renderer/extensions/electron_extensions_dispatcher_delegate.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_RENDERER_EXTENSIONS_ELECTRON_EXTENSIONS_DISPATCHER_DELEGATE_H_
-#define SHELL_RENDERER_EXTENSIONS_ELECTRON_EXTENSIONS_DISPATCHER_DELEGATE_H_
+#ifndef ELECTRON_SHELL_RENDERER_EXTENSIONS_ELECTRON_EXTENSIONS_DISPATCHER_DELEGATE_H_
+#define ELECTRON_SHELL_RENDERER_EXTENSIONS_ELECTRON_EXTENSIONS_DISPATCHER_DELEGATE_H_
 
 #include <set>
 #include <string>
@@ -39,4 +39,4 @@ class ElectronExtensionsDispatcherDelegate
       extensions::NativeExtensionBindingsSystem* bindings_system) override;
 };
 
-#endif  // SHELL_RENDERER_EXTENSIONS_ELECTRON_EXTENSIONS_DISPATCHER_DELEGATE_H_
+#endif  // ELECTRON_SHELL_RENDERER_EXTENSIONS_ELECTRON_EXTENSIONS_DISPATCHER_DELEGATE_H_
diff --git a/shell/renderer/extensions/electron_extensions_renderer_client.h b/shell/renderer/extensions/electron_extensions_renderer_client.h
index 9f992a1a2a8..4f909130628 100644
--- a/shell/renderer/extensions/electron_extensions_renderer_client.h
+++ b/shell/renderer/extensions/electron_extensions_renderer_client.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_RENDERER_EXTENSIONS_ELECTRON_EXTENSIONS_RENDERER_CLIENT_H_
-#define SHELL_RENDERER_EXTENSIONS_ELECTRON_EXTENSIONS_RENDERER_CLIENT_H_
+#ifndef ELECTRON_SHELL_RENDERER_EXTENSIONS_ELECTRON_EXTENSIONS_RENDERER_CLIENT_H_
+#define ELECTRON_SHELL_RENDERER_EXTENSIONS_ELECTRON_EXTENSIONS_RENDERER_CLIENT_H_
 
 #include <memory>
 
@@ -51,4 +51,4 @@ class ElectronExtensionsRendererClient
 
 }  // namespace electron
 
-#endif  // SHELL_RENDERER_EXTENSIONS_ELECTRON_EXTENSIONS_RENDERER_CLIENT_H_
+#endif  // ELECTRON_SHELL_RENDERER_EXTENSIONS_ELECTRON_EXTENSIONS_RENDERER_CLIENT_H_
diff --git a/shell/renderer/guest_view_container.h b/shell/renderer/guest_view_container.h
index 54daed1f494..caa2983a076 100644
--- a/shell/renderer/guest_view_container.h
+++ b/shell/renderer/guest_view_container.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_RENDERER_GUEST_VIEW_CONTAINER_H_
-#define SHELL_RENDERER_GUEST_VIEW_CONTAINER_H_
+#ifndef ELECTRON_SHELL_RENDERER_GUEST_VIEW_CONTAINER_H_
+#define ELECTRON_SHELL_RENDERER_GUEST_VIEW_CONTAINER_H_
 
 #include "base/callback.h"
 
@@ -44,4 +44,4 @@ class GuestViewContainer {
 
 }  // namespace electron
 
-#endif  // SHELL_RENDERER_GUEST_VIEW_CONTAINER_H_
+#endif  // ELECTRON_SHELL_RENDERER_GUEST_VIEW_CONTAINER_H_
diff --git a/shell/renderer/pepper_helper.h b/shell/renderer/pepper_helper.h
index 674918156cd..a73aec8fdd6 100644
--- a/shell/renderer/pepper_helper.h
+++ b/shell/renderer/pepper_helper.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_RENDERER_PEPPER_HELPER_H_
-#define SHELL_RENDERER_PEPPER_HELPER_H_
+#ifndef ELECTRON_SHELL_RENDERER_PEPPER_HELPER_H_
+#define ELECTRON_SHELL_RENDERER_PEPPER_HELPER_H_
 
 #include "base/compiler_specific.h"
 #include "base/component_export.h"
@@ -25,4 +25,4 @@ class PepperHelper : public content::RenderFrameObserver {
   void OnDestruct() override;
 };
 
-#endif  // SHELL_RENDERER_PEPPER_HELPER_H_
+#endif  // ELECTRON_SHELL_RENDERER_PEPPER_HELPER_H_
diff --git a/shell/renderer/printing/print_render_frame_helper_delegate.h b/shell/renderer/printing/print_render_frame_helper_delegate.h
index 40b9f569f2e..9733851552e 100644
--- a/shell/renderer/printing/print_render_frame_helper_delegate.h
+++ b/shell/renderer/printing/print_render_frame_helper_delegate.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_RENDERER_PRINTING_PRINT_RENDER_FRAME_HELPER_DELEGATE_H_
-#define SHELL_RENDERER_PRINTING_PRINT_RENDER_FRAME_HELPER_DELEGATE_H_
+#ifndef ELECTRON_SHELL_RENDERER_PRINTING_PRINT_RENDER_FRAME_HELPER_DELEGATE_H_
+#define ELECTRON_SHELL_RENDERER_PRINTING_PRINT_RENDER_FRAME_HELPER_DELEGATE_H_
 
 #include "components/printing/renderer/print_render_frame_helper.h"
 
@@ -30,4 +30,4 @@ class PrintRenderFrameHelperDelegate
 
 }  // namespace electron
 
-#endif  // SHELL_RENDERER_PRINTING_PRINT_RENDER_FRAME_HELPER_DELEGATE_H_
+#endif  // ELECTRON_SHELL_RENDERER_PRINTING_PRINT_RENDER_FRAME_HELPER_DELEGATE_H_
diff --git a/shell/renderer/renderer_client_base.h b/shell/renderer/renderer_client_base.h
index 904b43e9dbe..56e53ab764c 100644
--- a/shell/renderer/renderer_client_base.h
+++ b/shell/renderer/renderer_client_base.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_RENDERER_RENDERER_CLIENT_BASE_H_
-#define SHELL_RENDERER_RENDERER_CLIENT_BASE_H_
+#ifndef ELECTRON_SHELL_RENDERER_RENDERER_CLIENT_BASE_H_
+#define ELECTRON_SHELL_RENDERER_RENDERER_CLIENT_BASE_H_
 
 #include <memory>
 #include <string>
@@ -171,4 +171,4 @@ class RendererClientBase : public content::ContentRendererClient
 
 }  // namespace electron
 
-#endif  // SHELL_RENDERER_RENDERER_CLIENT_BASE_H_
+#endif  // ELECTRON_SHELL_RENDERER_RENDERER_CLIENT_BASE_H_
diff --git a/shell/renderer/web_worker_observer.h b/shell/renderer/web_worker_observer.h
index cceee69e9c8..0b05644fa0f 100644
--- a/shell/renderer/web_worker_observer.h
+++ b/shell/renderer/web_worker_observer.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_RENDERER_WEB_WORKER_OBSERVER_H_
-#define SHELL_RENDERER_WEB_WORKER_OBSERVER_H_
+#ifndef ELECTRON_SHELL_RENDERER_WEB_WORKER_OBSERVER_H_
+#define ELECTRON_SHELL_RENDERER_WEB_WORKER_OBSERVER_H_
 
 #include <memory>
 
@@ -37,4 +37,4 @@ class WebWorkerObserver {
 
 }  // namespace electron
 
-#endif  // SHELL_RENDERER_WEB_WORKER_OBSERVER_H_
+#endif  // ELECTRON_SHELL_RENDERER_WEB_WORKER_OBSERVER_H_
diff --git a/shell/utility/electron_content_utility_client.h b/shell/utility/electron_content_utility_client.h
index a3908ee900d..1c17e5ca065 100644
--- a/shell/utility/electron_content_utility_client.h
+++ b/shell/utility/electron_content_utility_client.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by the MIT license that can be
 // found in the LICENSE file.
 
-#ifndef SHELL_UTILITY_ELECTRON_CONTENT_UTILITY_CLIENT_H_
-#define SHELL_UTILITY_ELECTRON_CONTENT_UTILITY_CLIENT_H_
+#ifndef ELECTRON_SHELL_UTILITY_ELECTRON_CONTENT_UTILITY_CLIENT_H_
+#define ELECTRON_SHELL_UTILITY_ELECTRON_CONTENT_UTILITY_CLIENT_H_
 
 #include <memory>
 
@@ -47,4 +47,4 @@ class ElectronContentUtilityClient : public content::ContentUtilityClient {
 
 }  // namespace electron
 
-#endif  // SHELL_UTILITY_ELECTRON_CONTENT_UTILITY_CLIENT_H_
+#endif  // ELECTRON_SHELL_UTILITY_ELECTRON_CONTENT_UTILITY_CLIENT_H_