Reduce forward declarations in core/rendering

Source/core/rendering/svg/RenderSVGShape.h

 /*
  * Copyright (C) 2004, 2005, 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005 Rob Buis <buis@kde.org>
  * Copyright (C) 2005 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2006 Apple Computer, Inc
  * Copyright (C) 2009 Google, Inc.
  * Copyright (C) 2011 Renata Hodovan <reni@webkit.org>
  * Copyright (C) 2011 University of Szeged
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 20 matching lines @@
 #include "platform/geometry/FloatRect.h"
 #include "platform/transforms/AffineTransform.h"
 #include "wtf/OwnPtr.h"
 #include "wtf/Vector.h"
 
 namespace WebCore {
 
 class FloatPoint;
 class GraphicsContextStateSaver;
 class PointerEventsHitRules;
-class RenderSVGContainer;
-class RenderSVGPath;
-class RenderSVGResource;
 class SVGGraphicsElement;
 
 class RenderSVGShape : public RenderSVGModelObject {
 public:
     explicit RenderSVGShape(SVGGraphicsElement*);
     RenderSVGShape(SVGGraphicsElement*, Path*, bool);
     virtual ~RenderSVGShape();
 
     void setNeedsShapeUpdate() { m_needsShapeUpdate = true; }
     virtual void setNeedsBoundariesUpdate() OVERRIDE FINAL { m_needsBoundariesUpdate = true; }
@@ skipping 68 matching lines @@
     bool m_needsBoundariesUpdate : 1;
     bool m_needsShapeUpdate : 1;
     bool m_needsTransformUpdate : 1;
 };
 
 DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderSVGShape, isSVGShape());
 
 }
 
 #endif