Profile shouldn't own DesktopNotificationService.

chrome/browser/desktop_notification_handler.cc

 // Copyright (c) 2011 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/desktop_notification_handler.h"
 
 #include "chrome/browser/notifications/desktop_notification_service.h"
+#include "chrome/browser/notifications/desktop_notification_service_factory.h"
 #include "chrome/browser/profiles/profile.h"
 #include "content/browser/renderer_host/render_process_host.h"
 #include "content/browser/renderer_host/render_view_host.h"
 #include "content/browser/renderer_host/render_view_host_delegate.h"
 #include "content/common/desktop_notification_messages.h"
 
 DesktopNotificationHandler::DesktopNotificationHandler(
     RenderViewHost* render_view_host)
   : RenderViewHostObserver(render_view_host) {
 }
@@ skipping 13 matching lines @@
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
 
   return handled;
 }
 
 void DesktopNotificationHandler::OnShow(
     const DesktopNotificationHostMsg_Show_Params& params) {
   RenderProcessHost* process = render_view_host()->process();
   DesktopNotificationService* service =
-      process->profile()->GetDesktopNotificationService();
+      DesktopNotificationServiceFactory::GetForProfile(process->profile());
 
   service->ShowDesktopNotification(
     params,
     process->id(),
     routing_id(),
     DesktopNotificationService::PageNotification);
 }
 
 void DesktopNotificationHandler::OnCancel(int notification_id) {
   RenderProcessHost* process = render_view_host()->process();
   DesktopNotificationService* service =
-      process->profile()->GetDesktopNotificationService();
+      DesktopNotificationServiceFactory::GetForProfile(process->profile());
 
   service->CancelDesktopNotification(
       process->id(),
       routing_id(),
       notification_id);
 }
 
 void DesktopNotificationHandler::OnRequestPermission(
     const GURL& source_origin, int callback_context) {
   if (render_view_host()->delegate()->RequestDesktopNotificationPermission(
           source_origin, callback_context)) {
     return;
   }
 
   RenderProcessHost* process = render_view_host()->process();
   DesktopNotificationService* service =
-      process->profile()->GetDesktopNotificationService();
+      DesktopNotificationServiceFactory::GetForProfile(process->profile());
   service->RequestPermission(
       source_origin, process->id(), routing_id(), callback_context, NULL);
 }