[Extensions] Update web API cloberring for platform apps

chrome/chrome_tests.gypi

 # Copyright 2013 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': {
     'chrome_browser_extensions_test_support_sources': [
       # A list of sources which is shared between different browser tests.
       'browser/apps/app_browsertest_util.cc',
       'browser/apps/app_browsertest_util.h',
       'browser/extensions/browsertest_util.cc',
@@ skipping 195 matching lines @@
       'browser/extensions/api/test/apitest_apitest.cc',
       'browser/extensions/api/top_sites/top_sites_apitest.cc',
       'browser/extensions/api/web_navigation/web_navigation_apitest.cc',
       'browser/extensions/api/web_request/web_request_apitest.cc',
       'browser/extensions/api/webrtc_audio_private/webrtc_audio_private_browsertest.cc',
       'browser/extensions/api/webrtc_from_web_accessible_resource_browsertest.cc',
       'browser/extensions/api/webrtc_logging_private/webrtc_logging_private_apitest.cc',
       'browser/extensions/api/webstore_private/webstore_private_apitest.cc',
       'browser/extensions/app_background_page_apitest.cc',
       'browser/extensions/app_process_apitest.cc',
+      'browser/extensions/app_window_overrides_browsertest.cc',
       'browser/extensions/background_app_browsertest.cc',
       'browser/extensions/background_page_apitest.cc',
       'browser/extensions/background_scripts_apitest.cc',
       'browser/extensions/background_xhr_browsertest.cc',
       'browser/extensions/browsertest_util_browsertest.cc',
       'browser/extensions/chrome_app_api_browsertest.cc',
       'browser/extensions/chrome_ui_overrides_browsertest.cc',
       'browser/extensions/content_capabilities_browsertest.cc',
       'browser/extensions/content_script_apitest.cc',
       'browser/extensions/content_security_policy_apitest.cc',
@@ skipping 3312 matching lines @@
             'browser',
           ],
           'sources': [
             'tools/service_discovery_sniffer/service_discovery_sniffer.cc',
             'tools/service_discovery_sniffer/service_discovery_sniffer.h',
           ],
         }]
     }],
   ],  # 'conditions'
 }