implement method on browser window

atom/browser/api/atom_api_window.cc

@@ -351,6 +351,10 @@ void Window::InspectElement(int x, int y) {
   window_->InspectElement(x, y);
 }
 
+void Window::InspectServiceWorker() {
+  window_->InspectServiceWorker();
+}
+
 void Window::FocusOnWebView() {
   window_->FocusOnWebView();
 }
@@ -524,7 +528,8 @@ void Window::BuildPrototype(v8::Isolate* isolate,
                  &Window::ShowDefinitionForSelection)
 #endif
       .SetMethod("_getWebContents", &Window::GetWebContents)
-      .SetMethod("_getDevToolsWebContents", &Window::GetDevToolsWebContents);
+      .SetMethod("_getDevToolsWebContents", &Window::GetDevToolsWebContents)
+      .SetMethod("inspectServiceWorker", &Window::InspectServiceWorker);
 }
 
 }  // namespace api

atom/browser/api/atom_api_window.h

@@ -116,6 +116,7 @@ class Window : public mate::EventEmitter,
   void CloseDevTools();
   bool IsDevToolsOpened();
   void InspectElement(int x, int y);
+  void InspectServiceWorker();
   void FocusOnWebView();
   void BlurWebView();
   bool IsWebViewFocused();

atom/browser/native_window.cc

@@ -317,6 +317,17 @@ void NativeWindow::InspectElement(int x, int y) {
   agent->InspectElement(x, y);
 }
 
+void NativeWindow::InspectServiceWorker() {
+  for (const auto& agent_host : content::DevToolsAgentHost::GetOrCreateAll()) {
+    if (agent_host->GetType() ==
+        content::DevToolsAgentHost::TYPE_SERVICE_WORKER) {
+      OpenDevTools(true);
+      inspectable_web_contents()->AttachTo(agent_host);
+      break;
+    }
+  }
+}
+
 void NativeWindow::FocusOnWebView() {
   GetWebContents()->GetRenderViewHost()->Focus();
 }

atom/browser/native_window.h

@@ -153,6 +153,7 @@ class NativeWindow : public brightray::DefaultWebContentsDelegate,
   virtual void CloseDevTools();
   virtual bool IsDevToolsOpened();
   virtual void InspectElement(int x, int y);
+  virtual void InspectServiceWorker();
 
   virtual void FocusOnWebView();
   virtual void BlurWebView();

docs/api/browser-window.md

@@ -500,6 +500,10 @@ Toggle the developer tools.
 
 Starts inspecting element at position (`x`, `y`).
 
+### BrowserWindow.inspectServiceWorker()
+
+Opens the developer tools for the service worker context present in the web contents.
+
 ### BrowserWindow.focusOnWebView()
 
 ### BrowserWindow.blurWebView()