Fullscreen JS API implementation.

content/browser/renderer_host/render_view_host_delegate.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 CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 340 matching lines @@
   virtual void HandleKeyboardEvent(const NativeWebKeyboardEvent& event) {}
 
   // Notifications about mouse events in this view.  This is useful for
   // implementing global 'on hover' features external to the view.
   virtual void HandleMouseMove() {}
   virtual void HandleMouseDown() {}
   virtual void HandleMouseLeave() {}
   virtual void HandleMouseUp() {}
   virtual void HandleMouseActivate() {}
 
+  // Notification that the page wants to go into or out of fullscreen mode.
+  virtual void ToggleFullscreenMode(bool enter_fullscreen) {}
+
  protected:
   virtual ~RenderViewHostDelegate() {}
 };
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_H_