Change extension unload notification to indicate updates....

chrome/browser/extensions/extension_host.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/extensions/extension_host.h"
 
 #include <list>
 
 #include "app/keyboard_codes.h"
 #include "app/l10n_util.h"
@@ skipping 247 matching lines @@
       NotificationService::current()->Notify(
           NotificationType::EXTENSION_PROCESS_CREATED,
           Source<Profile>(profile_),
           Details<ExtensionHost>(this));
       break;
     case NotificationType::EXTENSION_UNLOADED:
       // The extension object will be deleted after this notification has been
       // sent. NULL it out so that dirty pointer issues don't arise in cases
       // when multiple ExtensionHost objects pointing to the same Extension are
       // present.
-      if (extension_ == Details<const Extension>(details).ptr())
+      if (extension_ == Details<UnloadedExtensionInfo>(details)->extension)
         extension_ = NULL;
       break;
     default:
       NOTREACHED() << "Unexpected notification sent.";
       break;
   }
 }
 
 void ExtensionHost::UpdatePreferredSize(const gfx::Size& new_size) {
   if (view_.get())
@@ skipping 515 matching lines @@
     // Extensions hosted in ExternalTabContainer objects may not have
     // an associated browser.
     Browser* browser = GetBrowser();
     if (browser)
       window_id = ExtensionTabUtil::GetWindowId(browser);
   } else if (extension_host_type_ != ViewType::EXTENSION_BACKGROUND_PAGE) {
     NOTREACHED();
   }
   return window_id;
 }