Enable ash shell and unit tests in GN build.

ui/views/examples/examples.gyp

 # 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.
 {
   'variables': {
     'chromium_code': 1,
   },
   'targets': [
     {
+      # GN version: //ui/views/examples
       'target_name': 'views_examples_lib',
       'type': '<(component)',
       'dependencies': [
         '../../../base/base.gyp:base',
         '../../../skia/skia.gyp:skia',
         '../../../third_party/icu/icu.gyp:icui18n',
         '../../../third_party/icu/icu.gyp:icuuc',
         '../../base/ui_base.gyp:ui_base',
         '../../events/events.gyp:events',
         '../../gfx/gfx.gyp:gfx',
         '../../gfx/gfx.gyp:gfx_geometry',
         '../../resources/ui_resources.gyp:ui_resources',
         '../../resources/ui_resources.gyp:ui_test_pak',
         '../views.gyp:views',
       ],
       'include_dirs': [
         '../../..',
       ],
       'defines': [
         'VIEWS_EXAMPLES_IMPLEMENTATION',
       ],
       'sources': [
+        # Note: sources list duplicated in GN build.
         'bubble_example.cc',
         'bubble_example.h',
         'button_example.cc',
         'button_example.h',
         'checkbox_example.cc',
         'checkbox_example.h',
         'combobox_example.cc',
         'combobox_example.h',
         'double_split_view_example.cc',
         'double_split_view_example.h',
@@ skipping 48 matching lines @@
           'msvs_disabled_warnings': [ 4267, ],
         }],
         ['use_aura==1', {
           'dependencies': [
             '../../aura/aura.gyp:aura',
           ],
         }],
       ],
     },  # target_name: views_examples_lib
     {
+      # GN version: //ui/views/examples:views_examples_exe
       'target_name': 'views_examples_exe',
       'type': 'executable',
       'dependencies': [
         '../../../base/base.gyp:base',
         '../../../base/base.gyp:base_i18n',
         '../../base/ui_base.gyp:ui_base',
         '../../compositor/compositor.gyp:compositor',
         '../../compositor/compositor.gyp:compositor_test_support',
         '../../gfx/gfx.gyp:gfx',
         '../../resources/ui_resources.gyp:ui_test_pak',
         '../views.gyp:views',
         '../views.gyp:views_test_support',
         'views_examples_lib',
       ],
       'sources': [
+        # Note: sources list duplicated in GN build.
         'examples_main.cc',
       ],
       'conditions': [
         ['use_aura==1', {
           'dependencies': [
             '../../aura/aura.gyp:aura',
           ],
         }],
       ],
     },  # target_name: views_examples_exe
     {
+      # GN version: //ui/views/examples:views_examples_with_content_lib
       'target_name': 'views_examples_with_content_lib',
       'type': '<(component)',
       'dependencies': [
         '../../../base/base.gyp:base',
         '../../../content/content.gyp:content',
         '../../../skia/skia.gyp:skia',
         '../../../url/url.gyp:url_lib',
         '../../events/events.gyp:events',
         '../controls/webview/webview.gyp:webview',
         '../views.gyp:views',
         'views_examples_lib',
       ],
       'defines': [
         'VIEWS_EXAMPLES_WITH_CONTENT_IMPLEMENTATION',
       ],
       'sources': [
+        # Note: sources list duplicated in GN build.
         'examples_window_with_content.cc',
         'examples_window_with_content.h',
         'views_examples_with_content_export.h',
         'webview_example.cc',
         'webview_example.h',
       ],
     },  # target_name: views_examples_with_content_lib
     {
+      # GN version: //ui/views/examples/views_examples_with_content_exe
       'target_name': 'views_examples_with_content_exe',
       'type': 'executable',
       'dependencies': [
         '../../../base/base.gyp:base',
         '../../../content/content.gyp:content',
         '../../views_content_client/views_content_client.gyp:views_content_client',
         'views_examples_with_content_lib',
       ],
       'sources': [
+        # Note: sources list duplicated in GN build.
         'examples_with_content_main_exe.cc',
       ],
       'conditions': [
         ['OS=="win"', {
           'link_settings': {
             'libraries': [
               '-limm32.lib',
               '-loleacc.lib',
             ]
           },
           'msvs_settings': {
             'VCManifestTool': {
               'AdditionalManifestFiles': [
                 'views_examples.exe.manifest',
               ],
             },
             'VCLinkerTool': {
               'SubSystem': '2',  # Set /SUBSYSTEM:WINDOWS
             },
           },
           'dependencies': [
             '../../../sandbox/sandbox.gyp:sandbox',
             '../../../content/content.gyp:content_startup_helper_win',
           ],
         }],
       ],
     },  # target_name: views_examples_with_content_exe
   ],
 }