Oilpan: move SVG property hierarchy to the heap.

Source/platform/graphics/filters/FilterEffect.h

 /*
  * Copyright (C) 2008 Alex Mathews <possessedpenguinbob@gmail.com>
  * Copyright (C) 2009 Dirk Schulze <krit@webkit.org>
  * Copyright (C) Research In Motion Limited 2010. All rights reserved.
  * 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.
@@ skipping 10 matching lines @@
  */
 
 #ifndef FilterEffect_h
 #define FilterEffect_h
 
 #include "platform/PlatformExport.h"
 #include "platform/geometry/FloatRect.h"
 #include "platform/geometry/IntRect.h"
 #include "platform/graphics/Color.h"
 #include "platform/graphics/ColorSpace.h"
+#include "platform/heap/Handle.h"
 
 #include "third_party/skia/include/core/SkImageFilter.h"
 
 #include "wtf/PassOwnPtr.h"
 #include "wtf/RefCounted.h"
 #include "wtf/RefPtr.h"
 #include "wtf/Uint8ClampedArray.h"
 #include "wtf/Vector.h"
 
 namespace blink {
 
 class Filter;
 class FilterEffect;
 class TextStream;
 
 class SkiaImageFilterBuilder;
 
-typedef Vector<RefPtr<FilterEffect> > FilterEffectVector;
+typedef WillBeHeapVector<RefPtrWillBeMember<FilterEffect> > FilterEffectVector;
 
 enum FilterEffectType {
     FilterEffectTypeUnknown,
     FilterEffectTypeImage,
     FilterEffectTypeTile,
     FilterEffectTypeSourceInput
 };
 
 enum DetermineSubregionFlag {
     DetermineSubregionNone = 0,
     MapRectForward = 1,
     ClipToFilterRegion = 1 << 1
 };
 
 typedef int DetermineSubregionFlags;
 
-class PLATFORM_EXPORT FilterEffect : public RefCounted<FilterEffect> {
+class PLATFORM_EXPORT FilterEffect : public RefCountedWillBeGarbageCollectedFinalized<FilterEffect> {
 public:
     virtual ~FilterEffect();
+    virtual void trace(Visitor*);
 
     static bool isFilterSizeValid(const FloatRect&);
     static float maxFilterArea();
 
     void clearResult();
     void clearResultsRecursive();
 
     FilterEffectVector& inputEffects() { return m_inputEffects; }
     FilterEffect* inputEffect(unsigned) const;
     unsigned numberOfEffectInputs() const { return m_inputEffects.size(); }
@@ skipping 126 matching lines @@
 
     ColorSpace m_operatingColorSpace;
     ColorSpace m_resultColorSpace;
 
     RefPtr<SkImageFilter> m_imageFilters[4];
 };
 
 } // namespace blink
 
 #endif // FilterEffect_h