Remove scaffolding for WebKit-proprietary fullscreen API

Source/core/page/ChromeClient.h

 /*
  * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple, Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  * Copyright (C) 2012 Samsung Electronics. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 231 matching lines @@
         AnimationTrigger = 1 << 4,
         FilterTrigger = 1 << 5,
         ScrollableInnerFrameTrigger = 1 << 6,
         AllTriggers = 0xFFFFFFFF
     };
     typedef unsigned CompositingTriggerFlags;
 
     // Returns a bitfield indicating conditions that can trigger the compositor.
     virtual CompositingTriggerFlags allowedCompositingTriggers() const { return static_cast<CompositingTriggerFlags>(AllTriggers); }
 
-    virtual void enterFullscreenForNode(Node*) { }
-    virtual void exitFullscreenForNode(Node*) { }
-
     virtual void enterFullScreenForElement(Element*) { }
     virtual void exitFullScreenForElement(Element*) { }
     virtual void setRootFullScreenLayer(GraphicsLayer*) { }
 
     virtual void needTouchEvents(bool) = 0;
 
     // Checks if there is an opened popup, called by RenderMenuList::showPopup().
     virtual bool hasOpenedPopup() const = 0;
     virtual PassRefPtr<PopupMenu> createPopupMenu(PopupMenuClient*) const = 0;
     virtual PassRefPtr<SearchPopupMenu> createSearchPopupMenu(PopupMenuClient*) const = 0;
@@ skipping 56 matching lines @@
 
     // Notifies the client a popup was closed.
     virtual void popupClosed(PopupContainer* popupContainer) = 0;
 
 protected:
     virtual ~ChromeClient() { }
 };
 
 }
 #endif // ChromeClient_h