Move render_widget files to content.

chrome/renderer/render_widget_fullscreen.h

-// Copyright (c) 2010 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_RENDERER_RENDER_WIDGET_FULLSCREEN_H_
-#define CHROME_RENDERER_RENDER_WIDGET_FULLSCREEN_H_
-
-#include "chrome/renderer/render_widget.h"
-
-#include "third_party/WebKit/Source/WebKit/chromium/public/WebWidget.h"
-
-// TODO(boliu): Override non-supported methods with no-op? eg setWindowRect().
-class RenderWidgetFullscreen : public RenderWidget {
- public:
-  // Creates a new RenderWidget.  The opener_id is the routing ID of the
-  // RenderView that this widget lives inside. The render_thread is any
-  // RenderThreadBase implementation, mostly commonly RenderThread::current().
-  static RenderWidgetFullscreen* Create(int32 opener_id,
-                                        RenderThreadBase* render_thread);
-
-  virtual void show(WebKit::WebNavigationPolicy);
-
- protected:
-  virtual WebKit::WebWidget* CreateWebWidget();
-  RenderWidgetFullscreen(RenderThreadBase* render_thread);
-
-  void Init(int32 opener_id);
-};
-
-#endif  // CHROME_RENDERER_RENDER_WIDGET_FULLSCREEN_H_