Moving GraphicsContext and dependencies from core to platform.

Source/core/rendering/svg/SVGRenderingContext.h

 /**
  * Copyright (C) 2007 Rob Buis <buis@kde.org>
  * Copyright (C) 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2007 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2009 Google, Inc.  All rights reserved.
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  * Copyright (C) 2012 Zoltan Herczeg <zherczeg@webkit.org>.
  *
  * 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 SVGRenderingContext_h
 #define SVGRenderingContext_h
 
-#include "core/platform/graphics/ImageBuffer.h"
 #include "core/rendering/PaintInfo.h"
 #include "core/rendering/svg/RenderSVGResourceClipper.h"
+#include "platform/graphics/ImageBuffer.h"
 
 namespace WebCore {
 
 class AffineTransform;
 class RenderObject;
 class FloatRect;
 class RenderSVGResourceFilter;
 class RenderSVGResourceMasker;
 
 // SVGRenderingContext
@@ skipping 71 matching lines @@
     IntRect m_savedPaintRect;
     RenderSVGResourceFilter* m_filter;
     RenderSVGResourceClipper* m_clipper;
     ClipperContext m_clipperContext;
     RenderSVGResourceMasker* m_masker;
 };
 
 } // namespace WebCore
 
 #endif // SVGRenderingContext_h