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

Source/core/animation/AnimatableUnknown.h

Index: Source/core/animation/AnimatableUnknown.h
diff --git a/Source/core/animation/AnimatableUnknown.h b/Source/core/animation/AnimatableUnknown.h
index ec569258e062e4356d95892a8430caf81f44e5b8..c310416da607420aead451e3ae81e69b62ffd4ee 100644
--- a/Source/core/animation/AnimatableUnknown.h
+++ b/Source/core/animation/AnimatableUnknown.h
@@ -41,20 +41,25 @@ class AnimatableUnknown FINAL : public AnimatableValue {
 public:
     virtual ~AnimatableUnknown() { }
 
-    static PassRefPtr<AnimatableUnknown> create(PassRefPtrWillBeRawPtr<CSSValue> value)
+    static PassRefPtrWillBeRawPtr<AnimatableUnknown> create(PassRefPtrWillBeRawPtr<CSSValue> value)
     {
-        return adoptRef(new AnimatableUnknown(value));
+        return adoptRefWillBeNoop(new AnimatableUnknown(value));
     }
-    static PassRefPtr<AnimatableUnknown> create(CSSValueID value)
+    static PassRefPtrWillBeRawPtr<AnimatableUnknown> create(CSSValueID value)
     {
-        return adoptRef(new AnimatableUnknown(cssValuePool().createIdentifierValue(value)));
+        return adoptRefWillBeNoop(new AnimatableUnknown(cssValuePool().createIdentifierValue(value)));
     }
 
     PassRefPtrWillBeRawPtr<CSSValue> toCSSValue() const { return m_value; }
     CSSValueID toCSSValueID() const { return toCSSPrimitiveValue(m_value.get())->getValueID(); }
 
+    virtual void trace(Visitor* visitor) OVERRIDE
+    {
+        visitor->trace(m_value);
+    }
+
 protected:
-    virtual PassRefPtr<AnimatableValue> interpolateTo(const AnimatableValue* value, double fraction) const OVERRIDE
+    virtual PassRefPtrWillBeRawPtr<AnimatableValue> interpolateTo(const AnimatableValue* value, double fraction) const OVERRIDE
     {
         return defaultInterpolateTo(this, value, fraction);
     }
@@ -70,7 +75,7 @@ private:
     virtual AnimatableType type() const OVERRIDE { return TypeUnknown; }
     virtual bool equalTo(const AnimatableValue*) const OVERRIDE;
 
-    const RefPtrWillBePersistent<CSSValue> m_value;
+    const RefPtrWillBeMember<CSSValue> m_value;
 };
 
 DEFINE_ANIMATABLE_VALUE_TYPE_CASTS(AnimatableUnknown, isUnknown());