Remove "2" suffixes from options2 code.

chrome/browser/ui/webui/options2/language_options_handler2.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_UI_WEBUI_OPTIONS2_LANGUAGE_OPTIONS_HANDLER2_H_
-#define CHROME_BROWSER_UI_WEBUI_OPTIONS2_LANGUAGE_OPTIONS_HANDLER2_H_
-#pragma once
-
-#include "chrome/browser/ui/webui/options2/language_options_handler_common2.h"
-
-namespace options2 {
-
-// Language options UI page handler for non-Chrome OS platforms.  For Chrome OS,
-// see chromeos::CrosLanguageOptionsHandler.
-class LanguageOptionsHandler : public LanguageOptionsHandlerCommon {
- public:
-  LanguageOptionsHandler();
-  virtual ~LanguageOptionsHandler();
-
-  // OptionsPageUIHandler implementation.
-  virtual void GetLocalizedValues(
-      base::DictionaryValue* localized_strings) OVERRIDE;
-
-  // WebUIMessageHandler implementation.
-  virtual void RegisterMessages() OVERRIDE;
-
-  // The following static method is public for ease of testing.
-
-  // Gets the list of languages from the given input descriptors.
-  // The return value will look like:
-  // [{'code': 'fi', 'displayName': 'Finnish', 'nativeDisplayName': 'suomi'},
-  //  ...]
-  static base::ListValue* GetLanguageList();
-
- private:
-  // LanguageOptionsHandlerCommon implementation.
-  virtual string16 GetProductName() OVERRIDE;
-  virtual void SetApplicationLocale(const std::string& language_code) OVERRIDE;
-
-  // Called when the restart button is clicked.
-  void RestartCallback(const base::ListValue* args);
-
-  DISALLOW_COPY_AND_ASSIGN(LanguageOptionsHandler);
-};
-
-}  // namespace options2
-
-#endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS2_LANGUAGE_OPTIONS_HANDLER2_H_