Remove "2" suffixes from options2 code.

chrome/browser/ui/webui/options2/chromeos/cros_language_options_handler.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_CROS_LANGUAGE_OPTIONS_HANDLER2_H_
-#define CHROME_BROWSER_UI_WEBUI_OPTIONS2_CHROMEOS_CROS_LANGUAGE_OPTIONS_HANDLER2_H_
+#ifndef CHROME_BROWSER_UI_WEBUI_OPTIONS2_CHROMEOS_CROS_LANGUAGE_OPTIONS_HANDLER_H_
+#define CHROME_BROWSER_UI_WEBUI_OPTIONS2_CHROMEOS_CROS_LANGUAGE_OPTIONS_HANDLER_H_
 #pragma once
 
 #include "base/compiler_specific.h"
 #include "chrome/browser/chromeos/input_method/input_method_descriptor.h"
-#include "chrome/browser/ui/webui/options2/language_options_handler2.h"
+#include "chrome/browser/ui/webui/options2/language_options_handler.h"
 
 namespace chromeos {
 namespace options2 {
 
 // Language options page UI handler for Chrome OS.  For non-Chrome OS,
 // see LanguageOptionsHnadler.
 class CrosLanguageOptionsHandler
     : public ::options2::LanguageOptionsHandlerCommon {
  public:
   CrosLanguageOptionsHandler();
@@ skipping 44 matching lines @@
   // Called when the input method options page is opened.
   // |args| will contain the input method ID as string (ex. "mozc").
   void InputMethodOptionsOpenCallback(const base::ListValue* args);
 
   DISALLOW_COPY_AND_ASSIGN(CrosLanguageOptionsHandler);
 };
 
 }  // namespace options2
 }  // namespace chromeos
 
-#endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS2_CHROMEOS_CROS_LANGUAGE_OPTIONS_HANDLER2_H_
+#endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS2_CHROMEOS_CROS_LANGUAGE_OPTIONS_HANDLER_H_