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

Source/core/animation/AnimatableFilterOperations.h

Index: Source/core/animation/AnimatableFilterOperations.h
diff --git a/Source/core/animation/AnimatableFilterOperations.h b/Source/core/animation/AnimatableFilterOperations.h
index a67264f9aa6f86ba216ecc00dd4ccd7e71e6bd0e..1e738d17e2f226c484d3f2b90a13cd3edcf20260 100644
--- a/Source/core/animation/AnimatableFilterOperations.h
+++ b/Source/core/animation/AnimatableFilterOperations.h
@@ -39,15 +39,17 @@ namespace WebCore {
 class AnimatableFilterOperations FINAL : public AnimatableValue {
 public:
     virtual ~AnimatableFilterOperations() { }
-    static PassRefPtr<AnimatableFilterOperations> create(const FilterOperations& operations)
+    static PassRefPtrWillBeRawPtr<AnimatableFilterOperations> create(const FilterOperations& operations)
     {
-        return adoptRef(new AnimatableFilterOperations(operations));
+        return adoptRefWillBeNoop(new AnimatableFilterOperations(operations));
     }
     const FilterOperations& operations() const { return m_operations; }
 
+    virtual void trace(Visitor*) OVERRIDE { }
+
 protected:
-    virtual PassRefPtr<AnimatableValue> interpolateTo(const AnimatableValue*, double fraction) const OVERRIDE;
-    virtual PassRefPtr<AnimatableValue> addWith(const AnimatableValue*) const OVERRIDE;
+    virtual PassRefPtrWillBeRawPtr<AnimatableValue> interpolateTo(const AnimatableValue*, double fraction) const OVERRIDE;
+    virtual PassRefPtrWillBeRawPtr<AnimatableValue> addWith(const AnimatableValue*) const OVERRIDE;
     virtual bool usesDefaultInterpolationWith(const AnimatableValue*) const OVERRIDE;
 
 private: