GN rules for everything in //mojo

mojo/mojo_apps.gypi

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 {
   'targets': [
     {
       # GN version: //mojo/apps/js
       #             //mojo/apps/js/bindings
       #             //mojo/apps/js/bindings/gl
@@ skipping 27 matching lines @@
         'apps/js/bindings/threading.h',
         'apps/js/bindings/gl/context.cc',
         'apps/js/bindings/gl/context.h',
         'apps/js/bindings/gl/module.cc',
         'apps/js/bindings/gl/module.h',
         'apps/js/bindings/monotonic_clock.cc',
         'apps/js/bindings/monotonic_clock.h',
       ],
     },
     {
+      # GN version: //mojo/apps/js/test:js_to_cpp_bindings
       'target_name': 'mojo_apps_js_bindings',
       'type': 'static_library',
       'sources': [
         'apps/js/test/js_to_cpp.mojom',
       ],
       'includes': [ 'public/tools/bindings/mojom_bindings_generator.gypi' ],
       'export_dependent_settings': [
         'mojo_base.gyp:mojo_cpp_bindings',
       ],
       'dependencies': [
@@ skipping 12 matching lines @@
         'mojo_base.gyp:mojo_run_all_unittests',
         'mojo_apps_js_bindings',
         'mojo_js_lib',
       ],
       'sources': [
         'apps/js/test/js_to_cpp_unittest.cc',
         'apps/js/test/run_apps_js_tests.cc',
       ],
     },
     {
+      # GN version: //mojo/apps/js:mojo_js
       'target_name': 'mojo_js',
       'type': 'loadable_module',
       'dependencies': [
         'mojo_js_lib',
         '<(mojo_system_for_loadable_module)',
       ],
       'sources': [
         'apps/js/main.cc',
       ],
     },
@@ skipping 12 matching lines @@
             'mojo_apps_js_unittests.isolate',
           ],
           'sources': [
             'mojo_apps_js_unittests.isolate',
           ],
         },
       ],
     }],
   ],
 }