Add ui/display, message_center, webview to GN build.

ui/message_center/message_center.gyp

 # 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.
 
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
+      # GN version: //ui/message_center
       'target_name': 'message_center',
       'type': '<(component)',
       'dependencies': [
         '../../base/base.gyp:base',
         '../../base/base.gyp:base_i18n',
         '../../base/third_party/dynamic_annotations/dynamic_annotations.gyp:dynamic_annotations',
         '../../skia/skia.gyp:skia',
         '../../url/url.gyp:url_lib',
         '../base/ui_base.gyp:ui_base',
         '../gfx/gfx.gyp:gfx',
         '../gfx/gfx.gyp:gfx_geometry',
         '../resources/ui_resources.gyp:ui_resources',
         '../strings/ui_strings.gyp:ui_strings',
       ],
       'defines': [
         'MESSAGE_CENTER_IMPLEMENTATION',
       ],
       'sources': [
+        # Note: file list duplicated in GN build.
         'cocoa/notification_controller.h',
         'cocoa/notification_controller.mm',
         'cocoa/opaque_views.h',
         'cocoa/opaque_views.mm',
         'cocoa/popup_collection.h',
         'cocoa/popup_collection.mm',
         'cocoa/popup_controller.h',
         'cocoa/popup_controller.mm',
         'cocoa/settings_controller.h',
         'cocoa/settings_controller.mm',
@@ skipping 86 matching lines @@
           'sources/': [
             ['exclude', 'views/'],
           ],
         }],
         ['use_ash==0', {
           'sources!': [
             'views/message_bubble_base.cc',
             'views/message_bubble_base.h',
             'views/message_center_bubble.cc',
             'views/message_center_bubble.h',
-            'views/message_popup_bubble.cc',
-            'views/message_popup_bubble.h',
           ],
         }],
         # iOS disables notifications altogether, Android implements its own
         # notification UI manager instead of deferring to the message center.
         ['notifications==0 or OS=="android"', {
           'sources/': [
             # Exclude everything except dummy impl.
             ['exclude', '\\.(cc|mm)$'],
             ['include', '^dummy_message_center\\.cc$'],
-            ['include', '^message_center_switches\\.cc$'],
             ['include', '^notification_delegate\\.cc$'],
           ],
         }, {  # notifications==1
           'sources!': [ 'dummy_message_center.cc' ],
         }],
         # Include a minimal set of files required for notifications on Android.
         ['OS=="android"', {
           'sources/': [
             ['include', '^notification\\.cc$'],
             ['include', '^notifier_settings\\.cc$'],
           ],
         }],
       ],
     },  # target_name: message_center
     {
+      # GN version: //ui/message_center:test_support
       'target_name': 'message_center_test_support',
       'type': 'static_library',
       'dependencies': [
         '../../base/base.gyp:base',
         '../../base/base.gyp:test_support_base',
         '../../skia/skia.gyp:skia',
         '../base/ui_base.gyp:ui_base',
         '../gfx/gfx.gyp:gfx',
         '../gfx/gfx.gyp:gfx_geometry',
         'message_center',
       ],
       'sources': [
+        # Note: sources list duplicated in GN build.
         'fake_message_center.h',
         'fake_message_center.cc',
         'fake_message_center_tray_delegate.h',
         'fake_message_center_tray_delegate.cc',
         'fake_notifier_settings_provider.h',
         'fake_notifier_settings_provider.cc',
       ],
     },  # target_name: message_center_test_support
     {
+      # GN version: //ui/message_center:message_center_unittests
       'target_name': 'message_center_unittests',
       'type': 'executable',
       'dependencies': [
         '../../base/base.gyp:base',
         '../../base/base.gyp:test_support_base',
         '../../skia/skia.gyp:skia',
         '../../testing/gtest.gyp:gtest',
         '../../url/url.gyp:url_lib',
         '../base/ui_base.gyp:ui_base',
         '../gfx/gfx.gyp:gfx',
         '../gfx/gfx.gyp:gfx_geometry',
         '../resources/ui_resources.gyp:ui_resources',
         '../resources/ui_resources.gyp:ui_test_pak',
         'message_center',
         'message_center_test_support',
       ],
       'sources': [
+        # Note: file list duplicated in GN build.
         'cocoa/notification_controller_unittest.mm',
         'cocoa/popup_collection_unittest.mm',
         'cocoa/popup_controller_unittest.mm',
         'cocoa/settings_controller_unittest.mm',
         'cocoa/status_item_view_unittest.mm',
         'cocoa/tray_controller_unittest.mm',
         'cocoa/tray_view_controller_unittest.mm',
         'message_center_tray_unittest.cc',
         'message_center_impl_unittest.cc',
         'notification_delegate_unittest.cc',
@@ skipping 32 matching lines @@
         # See http://crbug.com/162998#c4 for why this is needed.
         ['OS=="linux" and use_allocator!="none"', {
           'dependencies': [
             '../../base/allocator/allocator.gyp:allocator',
           ],
         }],
       ],
     },  # target_name: message_center_unittests
   ],
 }