Remove "2" suffixes from options2 code.

chrome/browser/ui/webui/options2/language_options_handler.h

Index: chrome/browser/ui/webui/options2/language_options_handler.h
diff --git a/chrome/browser/ui/webui/options2/language_options_handler2.h b/chrome/browser/ui/webui/options2/language_options_handler.h
similarity index 97%
rename from chrome/browser/ui/webui/options2/language_options_handler2.h
rename to chrome/browser/ui/webui/options2/language_options_handler.h
index 1e76a342cec3b42132772c46be427c051d69e24f..a66f696f1838e6a785903b98799dafac376a9e81 100644
--- a/chrome/browser/ui/webui/options2/language_options_handler2.h
+++ b/chrome/browser/ui/webui/options2/language_options_handler.h
@@ -2,11 +2,11 @@
 // 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_
+#ifndef CHROME_BROWSER_UI_WEBUI_OPTIONS2_LANGUAGE_OPTIONS_HANDLER_H_
+#define CHROME_BROWSER_UI_WEBUI_OPTIONS2_LANGUAGE_OPTIONS_HANDLER_H_
 #pragma once
 
-#include "chrome/browser/ui/webui/options2/language_options_handler_common2.h"
+#include "chrome/browser/ui/webui/options2/language_options_handler_common.h"
 
 namespace options2 {
 
@@ -45,4 +45,4 @@ class LanguageOptionsHandler : public LanguageOptionsHandlerCommon {
 
 }  // namespace options2
 
-#endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS2_LANGUAGE_OPTIONS_HANDLER2_H_
+#endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS2_LANGUAGE_OPTIONS_HANDLER_H_