Move Render(View|Widget)Host and associated classes to content namespace.

chrome/browser/ui/webui/devtools_ui.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_DEVTOOLS_UI_H_
 #define CHROME_BROWSER_UI_WEBUI_DEVTOOLS_UI_H_
 #pragma once
 
 #include "base/compiler_specific.h"
 #include "content/public/browser/web_ui_controller.h"
 
 class Profile;
 
 class DevToolsUI : public content::WebUIController {
  public:
   static void RegisterDevToolsDataSource(Profile* profile);
 
   explicit DevToolsUI(content::WebUI* web_ui);
 
   // WebUIController
-  virtual void RenderViewCreated(RenderViewHost* render_view_host) OVERRIDE;
+  virtual void RenderViewCreated(
+      content::RenderViewHost* render_view_host) OVERRIDE;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(DevToolsUI);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_DEVTOOLS_UI_H_