Merge ReferenceFilter into Filter

Source/core/svg/graphics/filters/SVGFilter.h

 /*
  * Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * 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 SVGFilter_h
 #define SVGFilter_h
 
 #include "platform/geometry/FloatRect.h"
-#include "platform/geometry/FloatSize.h"
 #include "platform/graphics/filters/Filter.h"
 #include "platform/graphics/filters/FilterEffect.h"
-#include "platform/transforms/AffineTransform.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
 #include "wtf/RefPtr.h"
 
 namespace blink {
 
 class SVGFilter final : public Filter {
 public:
     static PassRefPtrWillBeRawPtr<SVGFilter> create(const IntRect&, const FloatRect&, const FloatRect&, bool);
 
     float applyHorizontalScale(float value) const override;
     float applyVerticalScale(float value) const override;
     FloatPoint3D resolve3dPoint(const FloatPoint3D&) const override;
 
     IntRect sourceImageRect() const override { return m_absoluteSourceDrawingRegion; }
 
 private:
-    SVGFilter(const IntRect& absoluteSourceDrawingRegion, const FloatRect& targetBoundingBox, const FloatRect& filterRegion, bool effectBBoxMode);
+    SVGFilter(const IntRect& absoluteSourceDrawingRegion, const FloatRect& referenceBox, const FloatRect& filterRegion, bool effectBBoxMode);
 
     IntRect m_absoluteSourceDrawingRegion;
     bool m_effectBBoxMode;
 };
 
 } // namespace blink
 
 #endif // SVGFilter_h