Introduce SVGGraphicsElement IDL interface

Source/core/rendering/svg/RenderSVGTransformableContainer.h

 /*
  * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2009 Google, Inc.
  *
  * 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.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #ifndef RenderSVGTransformableContainer_h
 #define RenderSVGTransformableContainer_h
 
 #include "core/rendering/svg/RenderSVGContainer.h"
 
 namespace WebCore {
     
-class SVGStyledTransformableElement;
+class SVGGraphicsElement;
 class RenderSVGTransformableContainer FINAL : public RenderSVGContainer {
 public:
-    explicit RenderSVGTransformableContainer(SVGStyledTransformableElement*);
+    explicit RenderSVGTransformableContainer(SVGGraphicsElement*);
 
     virtual bool isSVGTransformableContainer() const { return true; }
     virtual const AffineTransform& localToParentTransform() const { return m_localTransform; }
     virtual void setNeedsTransformUpdate() { m_needsTransformUpdate = true; }
     virtual bool didTransformToRootUpdate() { return m_didTransformToRootUpdate; }
 
 private:
     virtual bool calculateLocalTransform();
     virtual AffineTransform localTransform() const { return m_localTransform; }
 
     bool m_needsTransformUpdate : 1;
     bool m_didTransformToRootUpdate : 1;
     AffineTransform m_localTransform;
     FloatSize m_lastTranslation;
 };
 
 }
 
 #endif // RenderSVGTransformableContainer_h