Removes Experimental hotword-always-on feature.

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.
 
 {
   'targets': [
     {
       'target_name': 'browser_ui',
       'type': 'static_library',
       'variables': { 'enable_wexit_time_destructors': 1, },
@@ skipping 153 matching lines @@
         'browser/ui/app_list/chrome_signin_delegate.cc',
         'browser/ui/app_list/chrome_signin_delegate.h',
         'browser/ui/app_list/extension_app_item.cc',
         'browser/ui/app_list/extension_app_item.h',
         'browser/ui/app_list/extension_app_model_builder.cc',
         'browser/ui/app_list/extension_app_model_builder.h',
         'browser/ui/app_list/extension_uninstaller.cc',
         'browser/ui/app_list/extension_uninstaller.h',
         'browser/ui/app_list/fast_show_pickler.cc',
         'browser/ui/app_list/fast_show_pickler.h',
-        'browser/ui/app_list/hotword_background_activity_delegate.h',
-        'browser/ui/app_list/hotword_background_activity_monitor.cc',
-        'browser/ui/app_list/hotword_background_activity_monitor.h',
         'browser/ui/app_list/keep_alive_service.h',
         'browser/ui/app_list/keep_alive_service_impl.cc',
         'browser/ui/app_list/keep_alive_service_impl.h',
         'browser/ui/app_list/profile_loader.cc',
         'browser/ui/app_list/profile_loader.h',
         'browser/ui/app_list/profile_store.h',
         'browser/ui/app_list/recommended_apps.cc',
         'browser/ui/app_list/recommended_apps.h',
         'browser/ui/app_list/recommended_apps_observer.h',
         'browser/ui/app_list/search/app_result.cc',
@@ skipping 3255 matching lines @@
             'browser/ui/webui/local_discovery/local_discovery_ui.cc',
             'browser/ui/webui/local_discovery/local_discovery_ui.h',
             'browser/ui/webui/local_discovery/local_discovery_ui_handler.cc',
             'browser/ui/webui/local_discovery/local_discovery_ui_handler.h',
           ],
         }],
       ],
     },
   ],
 }