Oilpan: move SVG property hierarchy to the heap.

Source/platform/graphics/filters/FEConvolveMatrix.h

 /*
  * Copyright (C) 2004, 2005, 2006, 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) 2010 Zoltan Herczeg <zherczeg@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
@@ skipping 23 matching lines @@
 
 enum EdgeModeType {
     EDGEMODE_UNKNOWN   = 0,
     EDGEMODE_DUPLICATE = 1,
     EDGEMODE_WRAP      = 2,
     EDGEMODE_NONE      = 3
 };
 
 class PLATFORM_EXPORT FEConvolveMatrix : public FilterEffect {
 public:
-    static PassRefPtr<FEConvolveMatrix> create(Filter*, const IntSize&,
+    static PassRefPtrWillBeRawPtr<FEConvolveMatrix> create(Filter*, const IntSize&,
             float, float, const IntPoint&, EdgeModeType, const FloatPoint&,
             bool, const Vector<float>&);
 
     IntSize kernelSize() const;
     void setKernelSize(const IntSize&);
 
     const Vector<float>& kernel() const;
     void setKernel(const Vector<float>&);
 
     float divisor() const;
@@ skipping 31 matching lines @@
     IntPoint m_targetOffset;
     EdgeModeType m_edgeMode;
     FloatPoint m_kernelUnitLength;
     bool m_preserveAlpha;
     Vector<float> m_kernelMatrix;
 };
 
 } // namespace blink
 
 #endif // FEConvolveMatrix_h