Move WebUIMessageHandler to its own file in the public directory and put it in the content namesp...

chrome/browser/ui/webui/options2/options_ui2.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_OPTIONS_UI2_H_
 #define CHROME_BROWSER_UI_WEBUI_OPTIONS2_OPTIONS_UI2_H_
 #pragma once
 
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/ui/webui/chrome_url_data_manager.h"
 #include "chrome/browser/ui/webui/chrome_web_ui.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "content/public/browser/notification_types.h"
+#include "content/public/browser/web_ui_message_handler.h"
 
 namespace options2 {
 
 // The base class handler of Javascript messages of options pages.
-class OptionsPageUIHandler : public WebUIMessageHandler,
-                              public content::NotificationObserver {
+class OptionsPageUIHandler : public content::WebUIMessageHandler,
+                             public content::NotificationObserver {
  public:
   OptionsPageUIHandler();
   virtual ~OptionsPageUIHandler();
 
   // Is this handler enabled?
   virtual bool IsEnabled();
 
   // Collects localized strings for options page.
   virtual void GetLocalizedValues(base::DictionaryValue* localized_strings) = 0;
 
@@ skipping 72 matching lines @@
   void SetCommandLineString(RenderViewHost* render_view_host);
 
   bool initialized_handlers_;
 
   DISALLOW_COPY_AND_ASSIGN(OptionsUI);
 };
 
 }  // namespace options2
 
 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS2_OPTIONS_UI2_H_