Oilpan: Unship Oilpan from CSSValues

Source/core/animation/FilterStyleInterpolation.h

Index: Source/core/animation/FilterStyleInterpolation.h
diff --git a/Source/core/animation/FilterStyleInterpolation.h b/Source/core/animation/FilterStyleInterpolation.h
index 4d5624097793f3feb6a43a33b7162bee7ca6d2ee..68a307259d9837d066439806342f80142a2a2a8e 100644
--- a/Source/core/animation/FilterStyleInterpolation.h
+++ b/Source/core/animation/FilterStyleInterpolation.h
@@ -21,7 +21,7 @@ public:
     // The following are called by ListStyleInterpolation.
     static bool canCreateFrom(const CSSValue& start, const CSSValue& end);
     static PassOwnPtrWillBeRawPtr<InterpolableValue> toInterpolableValue(const CSSValue&, CSSValueID&);
-    static PassRefPtrWillBeRawPtr<CSSFunctionValue> fromInterpolableValue(const InterpolableValue&, CSSValueID, InterpolationRange = RangeAll);
+    static PassRefPtr<CSSFunctionValue> fromInterpolableValue(const InterpolableValue&, CSSValueID, InterpolationRange = RangeAll);
 
 private:
     FilterStyleInterpolation(PassOwnPtrWillBeRawPtr<InterpolableValue> start, PassOwnPtrWillBeRawPtr<InterpolableValue> end, CSSPropertyID id)