Oilpan: Move CSSTimingData back to off-heap

Source/core/animation/css/CSSAnimationData.h

Index: Source/core/animation/css/CSSAnimationData.h
diff --git a/Source/core/animation/css/CSSAnimationData.h b/Source/core/animation/css/CSSAnimationData.h
index 797349bd5b97489abd9e82b602f957049bfd2154..4b3bf316ef4075a158f78eebe0f4c940651d50c9 100644
--- a/Source/core/animation/css/CSSAnimationData.h
+++ b/Source/core/animation/css/CSSAnimationData.h
@@ -13,14 +13,14 @@ namespace blink {
 
 class CSSAnimationData final : public CSSTimingData {
 public:
-    static PassOwnPtrWillBeRawPtr<CSSAnimationData> create()
+    static PassOwnPtr<CSSAnimationData> create()
     {
-        return adoptPtrWillBeNoop(new CSSAnimationData);
+        return adoptPtr(new CSSAnimationData);
     }
 
-    static PassOwnPtrWillBeRawPtr<CSSAnimationData> create(const CSSAnimationData& animationData)
+    static PassOwnPtr<CSSAnimationData> create(const CSSAnimationData& animationData)
     {
-        return adoptPtrWillBeNoop(new CSSAnimationData(animationData));
+        return adoptPtr(new CSSAnimationData(animationData));
     }
 
     bool animationsMatchForStyleRecalc(const CSSAnimationData& other) const;