Change extension unload notification to indicate updates....

chrome/browser/notifications/desktop_notification_service.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 "chrome/browser/notifications/desktop_notification_service.h"
 
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
 #include "base/metrics/histogram.h"
 #include "base/thread.h"
@@ skipping 299 matching lines @@
 
 void DesktopNotificationService::Observe(NotificationType type,
                                          const NotificationSource& source,
                                          const NotificationDetails& details) {
   if (NotificationType::PREF_CHANGED == type) {
     const std::string& name = *Details<std::string>(details).ptr();
     OnPrefsChanged(name);
   } else if (NotificationType::EXTENSION_UNLOADED == type) {
     // Remove all notifications currently shown or queued by the extension
     // which was unloaded.
-    Extension* extension = Details<Extension>(details).ptr();
+    const Extension* extension =
+        Details<UnloadedExtensionInfo>(details)->extension;
     if (extension)
       ui_manager_->CancelAllBySourceOrigin(extension->url());
   } else if (NotificationType::PROFILE_DESTROYED == type) {
     StopObserving();
   }
 }
 
 void DesktopNotificationService::OnPrefsChanged(const std::string& pref_name) {
   PrefService* prefs = profile_->GetPrefs();
 
@@ skipping 298 matching lines @@
   }
   return UTF8ToUTF16(origin.host());
 }
 
 void DesktopNotificationService::NotifySettingsChange() {
   NotificationService::current()->Notify(
       NotificationType::DESKTOP_NOTIFICATION_SETTINGS_CHANGED,
       Source<DesktopNotificationService>(this),
       NotificationService::NoDetails());
 }