Change extension unload notification to indicate updates....

chrome/browser/background_mode_manager.cc

 // 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.
 
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
 #include "base/base_paths.h"
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "base/utf_string_conversions.h"
@@ skipping 111 matching lines @@
 #endif
       break;
     case NotificationType::EXTENSION_LOADED:
       if (BackgroundApplicationListModel::IsBackgroundApp(
               *Details<Extension>(details).ptr())) {
         OnBackgroundAppLoaded();
       }
       break;
     case NotificationType::EXTENSION_UNLOADED:
       if (BackgroundApplicationListModel::IsBackgroundApp(
-              *Details<Extension>(details).ptr())) {
+              *Details<UnloadedExtensionInfo>(details)->extension)) {
         OnBackgroundAppUnloaded();
       }
       break;
     case NotificationType::EXTENSION_INSTALLED:
       if (BackgroundApplicationListModel::IsBackgroundApp(
               *Details<Extension>(details).ptr())) {
         OnBackgroundAppInstalled();
       }
       break;
     case NotificationType::EXTENSION_UNINSTALLED:
@@ skipping 227 matching lines @@
       !command_line->HasSwitch(switches::kDisableExtensions);
 #if !defined(OS_WIN)
   // BackgroundMode is enabled by default on windows. On other platforms, it
   // is enabled via about:flags.
   background_mode_enabled = background_mode_enabled &&
       command_line->HasSwitch(switches::kEnableBackgroundMode);
 #endif
 
   return background_mode_enabled;
 }
-