[cros] Network dropdown button in WebUI.

chrome/browser/chromeos/status/network_menu.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_H_
 #define CHROME_BROWSER_CHROMEOS_STATUS_NETWORK_MENU_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 75 matching lines @@
   NetworkMenu(Delegate* delegate, bool is_browser_mode);
   virtual ~NetworkMenu();
 
   // Access to menu definition.
   ui::MenuModel* GetMenuModel();
 
   // Cancels the active menu.
   void CancelMenu();
 
   // Update the menu (e.g. when the network list or status has changed).
-  void UpdateMenu();
+  virtual void UpdateMenu();
 
   // Run the menu.
   void RunMenu(views::View* source);
 
   // Shows network details in Web UI options window.
   void ShowTabbedNetworkSettings(const Network* network) const;
 
   // Getters.
   Delegate* delegate() const { return delegate_; }
   bool is_browser_mode() const { return is_browser_mode_; }
@@ skipping 20 matching lines @@
 
   // Holds minimum width of the menu.
   int min_width_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkMenu);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_STATUS_NETWORK_MENU_H_