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

Source/core/css/resolver/AnimatedStyleBuilder.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 49 matching lines @@
 #include "wtf/TypeTraits.h"
 
 namespace WebCore {
 
 namespace {
 
 Length animatableValueToLength(const AnimatableValue* value, const StyleResolverState& state, NumberRange range = AllValues)
 {
     if (value->isLength())
         return toAnimatableLength(value)->toLength(state.cssToLengthConversionData(), range);
-    RefPtr<CSSValue> cssValue = toAnimatableUnknown(value)->toCSSValue();
+    RefPtrWillBeRawPtr<CSSValue> cssValue = toAnimatableUnknown(value)->toCSSValue();
     CSSPrimitiveValue* cssPrimitiveValue = toCSSPrimitiveValue(cssValue.get());
     return cssPrimitiveValue->convertToLength<AnyConversion>(state.cssToLengthConversionData());
 }
 
 BorderImageLength animatableValueToBorderImageLength(const AnimatableValue* value, const StyleResolverState& state)
 {
     if (value->isLength())
         return BorderImageLength(toAnimatableLength(value)->toLength(state.cssToLengthConversionData(), NonNegativeValues));
     if (value->isDouble())
         return BorderImageLength(clampTo<double>(toAnimatableDouble(value)->toDouble(), 0));
-    RefPtr<CSSValue> cssValue = toAnimatableUnknown(value)->toCSSValue();
+    RefPtrWillBeRawPtr<CSSValue> cssValue = toAnimatableUnknown(value)->toCSSValue();
     CSSPrimitiveValue* cssPrimitiveValue = toCSSPrimitiveValue(cssValue.get());
     return BorderImageLength(cssPrimitiveValue->convertToLength<AnyConversion>(state.cssToLengthConversionData()));
 }
 
 template<typename T> T animatableValueRoundClampTo(const AnimatableValue* value, T min = defaultMinimumForClamp<T>(), T max = defaultMaximumForClamp<T>())
 {
     COMPILE_ASSERT(WTF::IsInteger<T>::value, ShouldUseIntegralTypeTWhenRoundingValues);
     return clampTo<T>(round(toAnimatableDouble(value)->toDouble()), min, max);
 }
 
@@ skipping 520 matching lines @@
         return;
     case CSSPropertyZoom:
         style->setZoom(clampTo<float>(toAnimatableDouble(value)->toDouble(), std::numeric_limits<float>::denorm_min()));
         return;
     default:
         ASSERT_NOT_REACHED();
     }
 }
 
 } // namespace WebCore