CSSValue Immediates: Change CSSValue to an object instead of a pointer

Source/core/css/CSSPrimitiveValue.h

Index: Source/core/css/CSSPrimitiveValue.h
diff --git a/Source/core/css/CSSPrimitiveValue.h b/Source/core/css/CSSPrimitiveValue.h
index 3f7b65ed10fa47ffdcee0ea063f26b3bc7687402..272fc24f553af70d11fa0477d950915a2a884abe 100644
--- a/Source/core/css/CSSPrimitiveValue.h
+++ b/Source/core/css/CSSPrimitiveValue.h
@@ -70,7 +70,7 @@ template<> inline float roundForImpreciseConversion(double value)
 // CSSPrimitiveValues are immutable. This class has manual ref-counting
 // of unioned types and does not have the code necessary
 // to handle any kind of mutations.
-class CORE_EXPORT CSSPrimitiveValue : public CSSValue {
+class CORE_EXPORT CSSPrimitiveValue : public CSSValueObject {
 public:
     enum UnitType {
         CSS_UNKNOWN = 0,
@@ -317,13 +317,13 @@ private:
 
     template<typename T> CSSPrimitiveValue(T); // Defined in CSSPrimitiveValueMappings.h
     template<typename T> CSSPrimitiveValue(T* val)
-        : CSSValue(PrimitiveClass)
+        : CSSValueObject(PrimitiveClass)
     {
         init(PassRefPtrWillBeRawPtr<T>(val));
     }
 
     template<typename T> CSSPrimitiveValue(PassRefPtrWillBeRawPtr<T> val)
-        : CSSValue(PrimitiveClass)
+        : CSSValueObject(PrimitiveClass)
     {
         init(val);
     }