Profile shouldn't own DesktopNotificationService.

chrome/browser/notifications/desktop_notification_service.h

 // 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.
 
 #ifndef CHROME_BROWSER_NOTIFICATIONS_DESKTOP_NOTIFICATION_SERVICE_H_
 #define CHROME_BROWSER_NOTIFICATIONS_DESKTOP_NOTIFICATION_SERVICE_H_
 #pragma once
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/string16.h"
 #include "chrome/browser/content_settings/content_settings_notification_provider.h"
 #include "chrome/browser/content_settings/content_settings_provider.h"
 #include "chrome/browser/prefs/pref_change_registrar.h"
+#include "chrome/browser/profiles/profile_keyed_service.h"
 #include "chrome/common/content_settings.h"
 #include "content/common/notification_observer.h"
 #include "content/common/notification_registrar.h"
 #include "googleurl/src/gurl.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebTextDirection.h"
 
 class Notification;
 class NotificationUIManager;
 class NotificationsPrefsCache;
 class PrefService;
 class Profile;
 class TabContents;
 struct DesktopNotificationHostMsg_Show_Params;
 
 // The DesktopNotificationService is an object, owned by the Profile,
 // which provides the creation of desktop "toasts" to web pages and workers.
-class DesktopNotificationService : public NotificationObserver {
+class DesktopNotificationService : public NotificationObserver,
+                                   public ProfileKeyedService {
  public:
   enum DesktopNotificationSource {
     PageNotification,
     WorkerNotification
   };
 
   DesktopNotificationService(Profile* profile,
                              NotificationUIManager* ui_manager);
   virtual ~DesktopNotificationService();
 
@@ skipping 107 matching lines @@
 
   scoped_ptr<content_settings::NotificationProvider> provider_;
 
   PrefChangeRegistrar prefs_registrar_;
   NotificationRegistrar notification_registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(DesktopNotificationService);
 };
 
 #endif  // CHROME_BROWSER_NOTIFICATIONS_DESKTOP_NOTIFICATION_SERVICE_H_