CSSValue Immediates: Add move operators to CSSPrimitiveValue

Source/core/animation/LengthStyleInterpolation.cpp

Index: Source/core/animation/LengthStyleInterpolation.cpp
diff --git a/Source/core/animation/LengthStyleInterpolation.cpp b/Source/core/animation/LengthStyleInterpolation.cpp
index bd52ac3755aa514408b1e2272ff98bdf15cc9c8a..7ca8aa412904f545b38ac9561982d4339b4f69ec 100644
--- a/Source/core/animation/LengthStyleInterpolation.cpp
+++ b/Source/core/animation/LengthStyleInterpolation.cpp
@@ -71,7 +71,7 @@ bool LengthStyleInterpolation::canCreateFrom(const CSSValue value, CSSPropertyID
     return value.isCalcValue();
 }
 
-PassOwnPtrWillBeRawPtr<InterpolableValue> LengthStyleInterpolation::toInterpolableValue(const CSSValue value, CSSPropertyID id)
+PassOwnPtrWillBeRawPtr<InterpolableValue> LengthStyleInterpolation::toInterpolableValue(const CSSValue& value, CSSPropertyID id)
 {
     ASSERT(canCreateFrom(value, id));
     OwnPtrWillBeRawPtr<InterpolableList> listOfValuesAndTypes = InterpolableList::create(2);
@@ -278,7 +278,7 @@ static Length lengthFromInterpolableValue(const InterpolableValue& value, Interp
 
 }
 
-PassRefPtrWillBeRawPtr<CSSPrimitiveValue> LengthStyleInterpolation::fromInterpolableValue(const InterpolableValue& value, InterpolationRange range)
+CSSPrimitiveValue LengthStyleInterpolation::fromInterpolableValue(const InterpolableValue& value, InterpolationRange range)
 {
     const InterpolableList* listOfValuesAndTypes = toInterpolableList(&value);
     const InterpolableList* listOfValues = toInterpolableList(listOfValuesAndTypes->get(0));