get rid of old options pages

chrome/browser/ui/webui/options2/chromeos/virtual_keyboard_manager_handler2.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_UI_WEBUI_OPTIONS2_CHROMEOS_VIRTUAL_KEYBOARD_MANAGER_HANDLER2_H_
 #define CHROME_BROWSER_UI_WEBUI_OPTIONS2_CHROMEOS_VIRTUAL_KEYBOARD_MANAGER_HANDLER2_H_
 #pragma once
 
 #include <map>
 #include <set>
 #include <string>
 
 #include "chrome/browser/ui/webui/options2/options_ui2.h"
 #include "googleurl/src/gurl.h"
 
 namespace base {
 class DictionaryValue;
 class ListValue;
 }  // namespace base
 
 namespace chromeos {
 
 namespace input_method {
 class VirtualKeyboard;
 }  // namespace input_method;
 
 namespace options2 {
 
 // A class which provides information to virtual_keyboard.js.
-class VirtualKeyboardManagerHandler : public OptionsPageUIHandler {
+class VirtualKeyboardManagerHandler : public ::options2::OptionsPageUIHandler {
  public:
   VirtualKeyboardManagerHandler();
   virtual ~VirtualKeyboardManagerHandler();
 
   // OptionsPageUIHandler implementation.
   virtual void GetLocalizedValues(
       base::DictionaryValue* localized_strings) OVERRIDE;
   virtual void RegisterMessages() OVERRIDE;
 
  protected:
@@ skipping 30 matching lines @@
   // Handles chrome.send("clearVirtualKeyboardPreference") JS call.
   void ClearVirtualKeyboardPreference(const base::ListValue* args);
 
   DISALLOW_COPY_AND_ASSIGN(VirtualKeyboardManagerHandler);
 };
 
 }  // namespace options2
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS2_CHROMEOS_VIRTUAL_KEYBOARD_MANAGER_HANDLER2_H_