Added system notification for update_engine.

chrome/chrome_browser.gypi

 # Copyright (c) 2010 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',
       'type': '<(library)',
       'msvs_guid': '5BF908A7-68FB-4A4B-99E3-8C749F1FE4EA',
@@ skipping 367 matching lines @@
         'browser/chromeos/cros/screen_lock_library.cc',
         'browser/chromeos/cros/screen_lock_library.h',
         'browser/chromeos/cros/speech_synthesis_library.cc',
         'browser/chromeos/cros/speech_synthesis_library.h',
         'browser/chromeos/cros/synaptics_library.cc',
         'browser/chromeos/cros/synaptics_library.h',
         'browser/chromeos/cros/syslogs_library.cc',
         'browser/chromeos/cros/syslogs_library.h',
         'browser/chromeos/cros/system_library.cc',
         'browser/chromeos/cros/system_library.h',
+        'browser/chromeos/cros/update_library.cc',
+        'broswer/chromeos/cors/update_library.h',
         'browser/chromeos/customization_document.cc',
         'browser/chromeos/customization_document.h',
         'browser/chromeos/dom_ui/sync_options_handler.cc',
         'browser/chromeos/dom_ui/sync_options_handler.h',
         'browser/chromeos/dom_ui/labs_handler.cc',
         'browser/chromeos/dom_ui/labs_handler.h',
         'browser/chromeos/dom_ui/system_options_handler.cc',
         'browser/chromeos/dom_ui/system_options_handler.h',
         'browser/chromeos/drop_shadow_label.cc',
         'browser/chromeos/external_cookie_handler.cc',
@@ skipping 161 matching lines @@
         'browser/chromeos/status/network_menu_button.h',
         'browser/chromeos/status/power_menu_button.cc',
         'browser/chromeos/status/power_menu_button.h',
         'browser/chromeos/status/status_area_button.cc',
         'browser/chromeos/status/status_area_button.h',
         'browser/chromeos/status/status_area_host.h',
         'browser/chromeos/status/status_area_view.cc',
         'browser/chromeos/status/status_area_view.h',
         'browser/chromeos/system_key_event_listener.cc',
         'browser/chromeos/system_key_event_listener.h',
+        'browser/chromeos/update_observer.cc',
+        'browser/chromeos/update_observer.h',
         'browser/chromeos/usb_mount_observer.cc',
         'browser/chromeos/usb_mount_observer.h',
         'browser/chromeos/version_loader.cc',
         'browser/chromeos/version_loader.h',
         'browser/chromeos/view_ids.h',
         'browser/chromeos/volume_bubble.cc',
         'browser/chromeos/volume_bubble.h',
         'browser/chromeos/volume_bubble_view.cc',
         'browser/chromeos/volume_bubble_view.h',
         'browser/chromeos/wm_ipc.cc',
@@ skipping 2993 matching lines @@
       ],
     },
   ],
 }
 
 # Local Variables:
 # tab-width:2
 # indent-tabs-mode:nil
 # End:
 # vim: set expandtab tabstop=2 shiftwidth=2: