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

Source/core/animation/AnimatableLengthPoint.cpp

Index: Source/core/animation/AnimatableLengthPoint.cpp
diff --git a/Source/core/animation/AnimatableLengthPoint.cpp b/Source/core/animation/AnimatableLengthPoint.cpp
index e779699d93dbd2a42d83427d411396906a699500..e46f1a19c97fb54192c7009227ae2219bd225d6e 100644
--- a/Source/core/animation/AnimatableLengthPoint.cpp
+++ b/Source/core/animation/AnimatableLengthPoint.cpp
@@ -33,7 +33,7 @@
 
 namespace WebCore {
 
-PassRefPtr<AnimatableValue> AnimatableLengthPoint::interpolateTo(const AnimatableValue* value, double fraction) const
+PassRefPtrWillBeRawPtr<AnimatableValue> AnimatableLengthPoint::interpolateTo(const AnimatableValue* value, double fraction) const
 {
     const AnimatableLengthPoint* lengthPoint = toAnimatableLengthPoint(value);
     return AnimatableLengthPoint::create(
@@ -41,7 +41,7 @@ PassRefPtr<AnimatableValue> AnimatableLengthPoint::interpolateTo(const Animatabl
         AnimatableValue::interpolate(this->y(), lengthPoint->y(), fraction));
 }
 
-PassRefPtr<AnimatableValue> AnimatableLengthPoint::addWith(const AnimatableValue* value) const
+PassRefPtrWillBeRawPtr<AnimatableValue> AnimatableLengthPoint::addWith(const AnimatableValue* value) const
 {
     const AnimatableLengthPoint* lengthPoint = toAnimatableLengthPoint(value);
     return AnimatableLengthPoint::create(
@@ -55,4 +55,10 @@ bool AnimatableLengthPoint::equalTo(const AnimatableValue* value) const
     return x()->equals(lengthPoint->x()) && y()->equals(lengthPoint->y());
 }
 
+void AnimatableLengthPoint::trace(Visitor* visitor)
+{
+    visitor->trace(m_x);
+    visitor->trace(m_y);
+}
+
 }