Make the ENABLE_APP_LIST build flag work on Linux

chrome/chrome_browser_extensions.gypi

 # Copyright (c) 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_chromeos_sources': [
       'browser/extensions/api/cast_devices_private/cast_devices_private_api.cc',
       'browser/extensions/api/cast_devices_private/cast_devices_private_api.h',
       'browser/extensions/api/certificate_provider/certificate_provider_api.cc',
@@ skipping 343 matching lines @@
       'browser/extensions/api/inline_install_private/inline_install_private_api.cc',
       'browser/extensions/api/inline_install_private/inline_install_private_api.h',
       'browser/extensions/api/instance_id/instance_id_api.cc',
       'browser/extensions/api/instance_id/instance_id_api.h',
       'browser/extensions/api/language_settings_private/language_settings_private_api.cc',
       'browser/extensions/api/language_settings_private/language_settings_private_api.h',
       'browser/extensions/api/language_settings_private/language_settings_private_delegate.cc',
       'browser/extensions/api/language_settings_private/language_settings_private_delegate.h',
       'browser/extensions/api/language_settings_private/language_settings_private_delegate_factory.cc',
       'browser/extensions/api/language_settings_private/language_settings_private_delegate_factory.h',
-      'browser/extensions/api/launcher_page/launcher_page_api.cc',
-      'browser/extensions/api/launcher_page/launcher_page_api.h',
       'browser/extensions/api/location/location_api.cc',
       'browser/extensions/api/location/location_api.h',
       'browser/extensions/api/location/location_manager.cc',
       'browser/extensions/api/location/location_manager.h',
       'browser/extensions/api/management/chrome_management_api_delegate.cc',
       'browser/extensions/api/management/chrome_management_api_delegate.h',
       'browser/extensions/api/media_galleries/media_galleries_api.cc',
       'browser/extensions/api/media_galleries/media_galleries_api.h',
       'browser/extensions/api/messaging/extension_message_port.cc',
       'browser/extensions/api/messaging/extension_message_port.h',
@@ skipping 528 matching lines @@
       'browser/web_applications/update_shortcut_worker_win.h',
       'browser/web_applications/web_app.cc',
       'browser/web_applications/web_app.h',
       'browser/web_applications/web_app_chromeos.cc',
       'browser/web_applications/web_app_mac.h',
       'browser/web_applications/web_app_mac.mm',
       'browser/web_applications/web_app_win.cc',
       'browser/web_applications/web_app_win.h',
     ],
     'chrome_browser_extensions_app_list_sources': [
+      'browser/extensions/api/launcher_page/launcher_page_api.cc',
+      'browser/extensions/api/launcher_page/launcher_page_api.h',
       'browser/apps/drive/drive_app_converter.cc',
       'browser/apps/drive/drive_app_converter.h',
       'browser/apps/drive/drive_app_mapping.cc',
       'browser/apps/drive/drive_app_mapping.h',
       'browser/apps/drive/drive_app_provider.cc',
       'browser/apps/drive/drive_app_provider.h',
       'browser/apps/drive/drive_app_uninstall_sync_service.h',
       'browser/apps/drive/drive_service_bridge.cc',
       'browser/apps/drive/drive_service_bridge.h',
     ],
@@ skipping 248 matching lines @@
           ],
         }, {  # use_brlapi==0
           'sources': [
             'browser/extensions/api/braille_display_private/braille_controller_stub.cc',
           ],
         }],
       ],
     },
   ],
 }