Oilpan: Move AnimatableValue's hierarchy to oilpan's heap

Source/core/animation/AnimatableSVGLength.cpp

 /*
  * Copyright (C) 2013 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 17 matching lines @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "core/animation/AnimatableSVGLength.h"
 
 #include "platform/FloatConversion.h"
 
 namespace WebCore {
 
-PassRefPtr<AnimatableValue> AnimatableSVGLength::interpolateTo(const AnimatableValue* value, double fraction) const
+PassRefPtrWillBeRawPtr<AnimatableValue> AnimatableSVGLength::interpolateTo(const AnimatableValue* value, double fraction) const
 {
     return create(toAnimatableSVGLength(value)->toSVGLength()->blend(m_length.get(), narrowPrecisionToFloat(fraction)));
 }
 
-PassRefPtr<AnimatableValue> AnimatableSVGLength::addWith(const AnimatableValue* value) const
+PassRefPtrWillBeRawPtr<AnimatableValue> AnimatableSVGLength::addWith(const AnimatableValue* value) const
 {
     ASSERT_WITH_MESSAGE(false, "Web Animations not yet implemented: AnimatableSVGLength::addWith()");
     return defaultAddWith(this, value);
 }
 
 bool AnimatableSVGLength::equalTo(const AnimatableValue* value) const
 {
     return *m_length == *toAnimatableSVGLength(value)->m_length;
 }
 
+void AnimatableSVGLength::trace(Visitor* visitor)
+{
+    AnimatableValue::trace(visitor);
+}
+
 } // namespace WebCore