[Notification] Stop calling detachPresenter().

content/renderer/active_notification_tracker.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 CONTENT_RENDERER_ACTIVE_NOTIFICATION_TRACKER_H_
 #define CONTENT_RENDERER_ACTIVE_NOTIFICATION_TRACKER_H_
 
 #include <map>
 
 #include "base/basictypes.h"
@@ skipping 24 matching lines @@
 
   // Methods for tracking active permission requests.
   int RegisterPermissionRequest(
       WebKit::WebNotificationPermissionCallback* callback);
   void OnPermissionRequestComplete(int id);
   WebKit::WebNotificationPermissionCallback* GetCallback(int id);
 
   // Clears out all active notifications.  Useful on page navigation.
   void Clear();
 
-  // Detaches all active notifications from their presenter.  Necessary
-  // when the Presenter is destroyed.
-  void DetachAll();
-
  private:
   typedef std::map<WebKit::WebNotification, int> ReverseTable;
 
   // Tracking maps for active notifications and permission requests.
   IDMap<WebKit::WebNotification> notification_table_;
   ReverseTable reverse_notification_table_;
   IDMap<WebKit::WebNotificationPermissionCallback> callback_table_;
 
   DISALLOW_COPY_AND_ASSIGN(ActiveNotificationTracker);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_ACTIVE_NOTIFICATION_TRACKER_H_