refactor: eliminate brightray (#15240)

docs/development/build-system-overview.md

@@ -8,8 +8,7 @@ be found in the `.gn` and `.gni` files.
 
 The following `gn` files contain the main rules for building Electron:
 
-* `BUILD.gn` defines how Electron itself is built.
-* `brightray/BUILD.gn` defines how `brightray` is built and
+* `BUILD.gn` defines how Electron itself is built and
   includes the default configurations for linking with Chromium.
 * `build/args/{debug,release,all}.gn` contain the default build arguments for
   building Electron.

docs/development/debug-instructions-windows.md

@@ -48,8 +48,7 @@ still set breakpoints - Visual Studio will automatically figure out that the
 source code matches the code running in the attached process and break
 accordingly.
 
-Relevant code files can be found in `./atom/` as well as in Brightray, found in
-`./brightray/browser` and `./brightray/common`.
+Relevant code files can be found in `./atom/`.
 
 ### Attaching
 

docs/development/debugging-instructions-macos.md

@@ -41,8 +41,7 @@ this basic introduction, let's assume that you're calling a command from JavaScr
 that isn't behaving correctly - so you'd like to break on that command's C++
 counterpart inside the Electron source.
 
-Relevant code files can be found in `./atom/` as well as in Brightray, found in
-`./brightray/browser` and `./brightray/common`.
+Relevant code files can be found in `./atom/`.
 
 Let's assume that you want to debug `app.setName()`, which is defined in `browser.cc`
 as `Browser::SetName()`. Set the breakpoint using the `breakpoint` command, specifying

docs/development/pull-requests.md

@@ -55,7 +55,7 @@ $ git checkout -b my-branch -t upstream/master
 ### Step 4: Code
 
 Most pull requests opened against the `electron/electron` repository include
-changes to either the C/C++ code in the `atom/` or `brightray/` folders,
+changes to either the C/C++ code in the `atom/` folder,
 the JavaScript code in the `lib/` folder, the documentation in `docs/api/`
 or tests in the `spec/` folder.
 

docs/development/source-code-directory-structure.md

@@ -31,7 +31,6 @@ Electron
 |       |         message loop into Chromium's message loop.
 |       └── api/ - The implementation of common APIs, and foundations of
 |                  Electron's built-in modules.
-├── brightray/ - Thin shim over libcc that makes it easier to use.
 ├── chromium_src/ - Source code copied from Chromium. See below.
 ├── default_app/ - The default page to show when Electron is started without
 |                  providing an app.