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

Source/core/animation/AnimatableFilterOperations.cpp

Index: Source/core/animation/AnimatableFilterOperations.cpp
diff --git a/Source/core/animation/AnimatableFilterOperations.cpp b/Source/core/animation/AnimatableFilterOperations.cpp
index b11695737797999983edf733a4756c3848bd3cb8..e897e6d19d027f510193e6edd217fb474c21a67b 100644
--- a/Source/core/animation/AnimatableFilterOperations.cpp
+++ b/Source/core/animation/AnimatableFilterOperations.cpp
@@ -41,7 +41,7 @@ bool AnimatableFilterOperations::usesDefaultInterpolationWith(const AnimatableVa
     return !operations().canInterpolateWith(target->operations());
 }
 
-PassRefPtr<AnimatableValue> AnimatableFilterOperations::interpolateTo(const AnimatableValue* value, double fraction) const
+PassRefPtrWillBeRawPtr<AnimatableValue> AnimatableFilterOperations::interpolateTo(const AnimatableValue* value, double fraction) const
 {
     if (usesDefaultInterpolationWith(value))
         return defaultInterpolateTo(this, value, fraction);
@@ -63,7 +63,7 @@ PassRefPtr<AnimatableValue> AnimatableFilterOperations::interpolateTo(const Anim
     return AnimatableFilterOperations::create(result);
 }
 
-PassRefPtr<AnimatableValue> AnimatableFilterOperations::addWith(const AnimatableValue* value) const
+PassRefPtrWillBeRawPtr<AnimatableValue> AnimatableFilterOperations::addWith(const AnimatableValue* value) const
 {
     ASSERT_WITH_MESSAGE(false, "Web Animations not yet implemented: AnimatableFilterOperations::addWith()");
     return defaultAddWith(this, value);