Reduce forward declarations in core/svg

Source/core/svg/SVGTransformTearOff.h

 /*
  * Copyright (C) 2014 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 20 matching lines @@
 #ifndef SVGTransformTearOff_h
 #define SVGTransformTearOff_h
 
 #include "bindings/v8/ScriptWrappable.h"
 #include "core/svg/SVGMatrixTearOff.h"
 #include "core/svg/SVGTransform.h"
 #include "core/svg/properties/SVGPropertyTearOff.h"
 
 namespace WebCore {
 
-class SVGMatrix;
-
 class SVGTransformTearOff FINAL : public SVGPropertyTearOff<SVGTransform>, public ScriptWrappable {
 public:
     enum SVGTransformType {
         SVG_TRANSFORM_UNKNOWN = WebCore::SVG_TRANSFORM_UNKNOWN,
         SVG_TRANSFORM_MATRIX = WebCore::SVG_TRANSFORM_MATRIX,
         SVG_TRANSFORM_TRANSLATE = WebCore::SVG_TRANSFORM_TRANSLATE,
         SVG_TRANSFORM_SCALE = WebCore::SVG_TRANSFORM_SCALE,
         SVG_TRANSFORM_ROTATE = WebCore::SVG_TRANSFORM_ROTATE,
         SVG_TRANSFORM_SKEWX = WebCore::SVG_TRANSFORM_SKEWX,
         SVG_TRANSFORM_SKEWY = WebCore::SVG_TRANSFORM_SKEWY,
@@ skipping 19 matching lines @@
 
 private:
     SVGTransformTearOff(PassRefPtr<SVGTransform>, SVGElement* contextElement, PropertyIsAnimValType, const QualifiedName& attributeName);
 
     RefPtr<SVGMatrixTearOff> m_matrixTearoff;
 };
 
 } // namespace WebCore
 
 #endif // SVGTransformTearOff_h_