Add a notification about auto-granted access to file systems.

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/enterprise_platform_keys/enterprise_platform_keys_api.cc',
       'browser/extensions/api/enterprise_platform_keys/enterprise_platform_keys_api.h',
       'browser/extensions/api/enterprise_platform_keys_private/enterprise_platform_keys_private_api.cc',
       'browser/extensions/api/enterprise_platform_keys_private/enterprise_platform_keys_private_api.h',
       'browser/extensions/api/file_system/request_file_system_dialog_view.cc',
       'browser/extensions/api/file_system/request_file_system_dialog_view.h',
+      'browser/extensions/api/file_system/request_file_system_notification.cc',
+      'browser/extensions/api/file_system/request_file_system_notification.h',
       'browser/extensions/api/input_ime/input_ime_api.cc',
       'browser/extensions/api/input_ime/input_ime_api.h',
       'browser/extensions/api/log_private/filter_handler.cc',
       'browser/extensions/api/log_private/filter_handler.h',
       'browser/extensions/api/log_private/log_parser.cc',
       'browser/extensions/api/log_private/log_parser.h',
       'browser/extensions/api/log_private/log_private_api.h',
       'browser/extensions/api/log_private/log_private_api_chromeos.cc',
       'browser/extensions/api/log_private/syslog_parser.cc',
       'browser/extensions/api/log_private/syslog_parser.h',
@@ skipping 1029 matching lines @@
           ],
         }, {  # use_brlapi==0
           'sources': [
             'browser/extensions/api/braille_display_private/braille_controller_stub.cc',
           ],
         }],
       ],
     },
   ],
 }