Remove "2" suffixes from options2 code.

chrome/browser/ui/webui/options2/search_engine_manager_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_SEARCH_ENGINE_MANAGER_HANDLER2_H_
-#define CHROME_BROWSER_UI_WEBUI_OPTIONS2_SEARCH_ENGINE_MANAGER_HANDLER2_H_
+#ifndef CHROME_BROWSER_UI_WEBUI_OPTIONS2_SEARCH_ENGINE_MANAGER_HANDLER_H_
+#define CHROME_BROWSER_UI_WEBUI_OPTIONS2_SEARCH_ENGINE_MANAGER_HANDLER_H_
 
 #include "chrome/browser/ui/search_engines/edit_search_engine_controller.h"
-#include "chrome/browser/ui/webui/options2/options_ui2.h"
+#include "chrome/browser/ui/webui/options2/options_ui.h"
 #include "ui/base/models/table_model_observer.h"
 
 class KeywordEditorController;
 
 namespace extensions {
 class Extension;
 }
 
 namespace options2 {
 
@@ skipping 56 matching lines @@
 
   // Returns a dictionary to pass to WebUI representing the extension.
   base::DictionaryValue* CreateDictionaryForExtension(
       const extensions::Extension& extension);
 
   DISALLOW_COPY_AND_ASSIGN(SearchEngineManagerHandler);
 };
 
 }  // namespace options2
 
-#endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS2_SEARCH_ENGINE_MANAGER_HANDLER2_H_
+#endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS2_SEARCH_ENGINE_MANAGER_HANDLER_H_