Use Closure instead of ScopedRunnableMethodFactory in NetworkMenuButton.

chrome/browser/chromeos/status/network_menu_button.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_CHROMEOS_STATUS_NETWORK_MENU_BUTTON_H_
 #define CHROME_BROWSER_CHROMEOS_STATUS_NETWORK_MENU_BUTTON_H_
 #pragma once
 
 #include <string>
 
-#include "base/task.h"
+#include "base/memory/weak_ptr.h"
 #include "base/timer.h"
 #include "chrome/browser/chromeos/cros/network_library.h"
 #include "chrome/browser/chromeos/login/message_bubble.h"
 #include "chrome/browser/chromeos/mobile_config.h"
 #include "chrome/browser/chromeos/status/network_menu.h"
 #include "chrome/browser/chromeos/status/network_menu_icon.h"
 #include "chrome/browser/chromeos/status/status_area_button.h"
 
 class PrefService;
 
@@ skipping 131 matching lines @@
   // whose status is displayed in the network menu button.
   std::string active_network_;
 
   // Current carrier deal info URL.
   std::string deal_info_url_;
 
   // Current carrier deal top-up URL.
   std::string deal_topup_url_;
 
   // Factory for delaying showing promo notification.
-  ScopedRunnableMethodFactory<NetworkMenuButton> method_factory_;
+  base::WeakPtrFactory<NetworkMenuButton> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkMenuButton);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_STATUS_NETWORK_MENU_BUTTON_H_