Reduce forward declarations in core/svg

Source/core/svg/SVGFilterPrimitiveStandardAttributes.h

 /*
  * Copyright (C) 2004, 2005, 2006, 2007 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006 Rob Buis <buis@kde.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,
@@ skipping 14 matching lines @@
 #include "core/svg/SVGAnimatedLength.h"
 #include "core/svg/SVGAnimatedString.h"
 #include "core/svg/SVGElement.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefPtr.h"
 
 namespace WebCore {
 
 class Filter;
 class FilterEffect;
-class RenderSVGResourceFilterPrimitive;
 class SVGFilterBuilder;
 
 class SVGFilterPrimitiveStandardAttributes : public SVGElement {
 public:
     void setStandardAttributes(FilterEffect*) const;
 
     virtual PassRefPtr<FilterEffect> build(SVGFilterBuilder*, Filter* filter) = 0;
     // Returns true, if the new value is different from the old one.
     virtual bool setFilterEffectAttribute(FilterEffect*, const QualifiedName&);
 
@@ skipping 31 matching lines @@
     RefPtr<SVGAnimatedLength> m_width;
     RefPtr<SVGAnimatedLength> m_height;
     RefPtr<SVGAnimatedString> m_result;
 };
 
 void invalidateFilterPrimitiveParent(SVGElement*);
 
 } // namespace WebCore
 
 #endif