Blank UI for web component tests.

chrome/chrome_browser_ui.gypi

 # Copyright 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': {
     # There are two sections of sources:
     # * "Platform"-based sources (OS, toolkit, etc.)
     # * Feature/directory-based sources (e.g., history, printing)
 
@@ skipping 1928 matching lines @@
       'browser/ui/webui/sync_file_system_internals/sync_file_system_internals_handler.cc',
       'browser/ui/webui/sync_file_system_internals/sync_file_system_internals_handler.h',
       'browser/ui/webui/sync_file_system_internals/sync_file_system_internals_ui.cc',
       'browser/ui/webui/sync_file_system_internals/sync_file_system_internals_ui.h',
       'browser/ui/webui/system_info_ui.cc',
       'browser/ui/webui/system_info_ui.h',
       'browser/ui/webui/theme_handler.cc',
       'browser/ui/webui/theme_handler.h',
       'browser/ui/webui/uber/uber_ui.cc',
       'browser/ui/webui/uber/uber_ui.h',
+      'browser/ui/webui/web_component_test_ui.cc',
+      'browser/ui/webui/web_component_test_ui.h',
       'browser/ui/window_sizer/window_sizer.cc',
       'browser/ui/window_sizer/window_sizer.h',
     ],
     # Cross-platform views sources also ready for toolkit-views on Mac.
     'chrome_browser_ui_views_sources': [
       'browser/ui/app_list/app_list_controller_delegate_views.cc',
       'browser/ui/app_list/app_list_controller_delegate_views.h',
       'browser/ui/app_list/app_list_service_views.cc',
       'browser/ui/app_list/app_list_service_views.h',
       'browser/ui/app_list/app_list_shower_views.cc',
@@ skipping 1235 matching lines @@
           ],
           'sources': [
             '<@(chrome_browser_ui_non_mobile_sources)',
             '<@(chrome_browser_ui_omnibox_non_mobile_sources)',
           ],
         }],
       ],
     },
   ],
 }