Move all RefPtr's to CSSValue to oilpan transition types, except for the one in CSSCursorImageValue.

Source/core/animation/AnimatableNeutralTest.cpp

 /*
  * Copyright (c) 2013, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 29 matching lines @@
 
 namespace {
 
 TEST(AnimationAnimatableNeutralTest, Create)
 {
     EXPECT_TRUE(AnimatableValue::neutralValue());
 }
 
 TEST(AnimationAnimatableNeutralTest, Add)
 {
-    RefPtr<CSSValue> cssValue = CSSArrayFunctionValue::create();
+    RefPtrWillBeRawPtr<CSSValue> cssValue = CSSArrayFunctionValue::create();
     RefPtr<AnimatableValue> animatableUnknown = AnimatableUnknown::create(cssValue);
 
     EXPECT_EQ(cssValue, toAnimatableUnknown(AnimatableValue::add(animatableUnknown.get(), AnimatableValue::neutralValue()).get())->toCSSValue());
     EXPECT_EQ(cssValue, toAnimatableUnknown(AnimatableValue::add(AnimatableValue::neutralValue(), animatableUnknown.get()).get())->toCSSValue());
 }
 
 }