Fix memory leak of Route newly created notifications to notification provider API

chrome/browser/notifications/message_center_notification_manager.h

 // Copyright (c) 2012 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_MESSAGE_CENTER_NOTIFICATION_MANAGER_H_
 #define CHROME_BROWSER_NOTIFICATIONS_MESSAGE_CENTER_NOTIFICATION_MANAGER_H_
 
 #include <map>
 #include <string>
 
@@ skipping 163 matching lines @@
     // Overridden from ImageDownloadsObserver.
     virtual void OnDownloadsCompleted() OVERRIDE;
 
     Profile* profile() const { return profile_; }
     const Notification& notification() const { return notification_; }
 
     // Returns extension_id if the notification originates from an extension,
     // empty string otherwise.
     std::string GetExtensionId();
 
+    // Route a new notification to an app/extension.
+    void AddToAlternateProvider(const std::string extension_id);
+
    private:
     // Weak, guaranteed not to be used after profile removal by parent class.
     Profile* profile_;
     Notification notification_;
     // Track the downloads for this notification so the notification can be
     // updated properly.
     scoped_ptr<ImageDownloads> downloads_;
   };
 
   scoped_ptr<message_center::MessageCenterTrayDelegate> tray_;
   message_center::MessageCenter* message_center_;  // Weak, global.
 
   // Use a map by notification_id since this mapping is the most often used.
   typedef std::map<std::string, ProfileNotification*> NotificationMap;
   NotificationMap profile_notifications_;
 
-  // Helpers that add/remove the notification from local map and MessageCenter.
-  // They take ownership of profile_notification object.
+  // Helpers that add/remove the notification from local map.
+  // The local map takes ownership of profile_notification object.
   void AddProfileNotification(ProfileNotification* profile_notification);
   void RemoveProfileNotification(ProfileNotification* profile_notification);
 
   // Returns the ProfileNotification for the |id|, or NULL if no such
   // notification is found.
   ProfileNotification* FindProfileNotification(const std::string& id) const;
 
+  // Get the extension ID of the extension that the user chose to take over
+  // Chorme Notification Center.
+  std::string GetExtensionTakingOverNotifications(Profile* profile);
+
 #if defined(OS_WIN)
   // This function is run on update to ensure that the notification balloon is
   // shown only when there are no popups present.
   void CheckFirstRunTimer();
 
   // |first_run_pref_| is used to keep track of whether we've ever shown the
   // first run balloon before, even across restarts.
   BooleanPrefMember first_run_pref_;
 
   // The timer after which we will show the first run balloon.  This timer is
@@ skipping 22 matching lines @@
   // Keeps track of all notification statistics for UMA purposes.
   MessageCenterStatsCollector stats_collector_;
 
   // Keeps track of notifications specific to Google Now for UMA purposes.
   GoogleNowNotificationStatsCollector google_now_stats_collector_;
 
   DISALLOW_COPY_AND_ASSIGN(MessageCenterNotificationManager);
 };
 
 #endif  // CHROME_BROWSER_NOTIFICATIONS_MESSAGE_CENTER_NOTIFICATION_MANAGER_H_