Oilpan: move SVG property hierarchy to the heap.

Source/platform/animation/AnimationValue.h

 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Intel Corporation. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 74 matching lines @@
             m_value = *value;
     }
     virtual PassOwnPtr<AnimationValue> clone() const override { return adoptPtr(new TransformAnimationValue(*this)); }
 
     const TransformOperations* value() const { return &m_value; }
 
 private:
     TransformOperations m_value;
 };
 
-// Used to store one filter value in a keyframe list.
-class FilterAnimationValue final : public AnimationValue {
-public:
-    explicit FilterAnimationValue(double keyTime, const FilterOperations* value = 0, PassRefPtr<TimingFunction> timingFunction = nullptr)
-        : AnimationValue(keyTime, timingFunction)
-    {
-        if (value)
-            m_value = *value;
-    }
-    virtual PassOwnPtr<AnimationValue> clone() const override { return adoptPtr(new FilterAnimationValue(*this)); }
-
-    const FilterOperations* value() const { return &m_value; }
-
-private:
-    FilterOperations m_value;
-};
-
 } // namespace blink
 
 #endif // AnimationValue_h