Make chrome_shell_apk build

components/web_contents_delegate_android.gypi

 # Copyright (c) 2012 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.
 
 {
   'conditions': [
     ['OS=="android"', {
       'targets': [
         {
+          # GN: //components/web_contents_delegate_android:web_contents_delegate_android
           'target_name': 'web_contents_delegate_android',
           'type': 'static_library',
           'dependencies': [
             '../base/base.gyp:base',
             '../content/content.gyp:content_browser',
             '../content/content.gyp:content_common',
             '../net/net.gyp:net',
             '../skia/skia.gyp:skia',
             '../ui/base/ui_base.gyp:ui_base',
             '../ui/gfx/gfx.gyp:gfx',
             '../ui/gfx/gfx.gyp:gfx_geometry',
             'web_contents_delegate_android_jni_headers',
           ],
           'include_dirs': [
             '..',
             '../skia/config',
           ],
           'sources': [
             'web_contents_delegate_android/color_chooser_android.cc',
             'web_contents_delegate_android/color_chooser_android.h',
             'web_contents_delegate_android/component_jni_registrar.cc',
             'web_contents_delegate_android/component_jni_registrar.h',
             'web_contents_delegate_android/validation_message_bubble_android.cc',
             'web_contents_delegate_android/validation_message_bubble_android.h',
             'web_contents_delegate_android/web_contents_delegate_android.cc',
             'web_contents_delegate_android/web_contents_delegate_android.h',
           ],
         },
         {
+          # GN: //components/web_contents_delegate_android:web_contents_delegate_android_java
           'target_name': 'web_contents_delegate_android_java',
           'type': 'none',
           'dependencies': [
             '../base/base.gyp:base',
             '../content/content.gyp:content_java',
           ],
           'variables': {
             'java_in_dir': 'web_contents_delegate_android/android/java',
           },
           'includes': [ '../build/java.gypi' ],
         },
         {
+          # GN: //components/web_contents_delegate_android:web_contents_delegate_android_jni_headers
           'target_name': 'web_contents_delegate_android_jni_headers',
           'type': 'none',
           'sources': [
             'web_contents_delegate_android/android/java/src/org/chromium/components/web_contents_delegate_android/ColorChooserAndroid.java',
             'web_contents_delegate_android/android/java/src/org/chromium/components/web_contents_delegate_android/ValidationMessageBubble.java',
             'web_contents_delegate_android/android/java/src/org/chromium/components/web_contents_delegate_android/WebContentsDelegateAndroid.java',
           ],
           'variables': {
             'jni_gen_package': 'web_contents_delegate_android',
           },
           'includes': [ '../build/jni_generator.gypi' ],
         },
       ],
     }],
   ],
 }