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

Source/core/css/resolver/StyleResolverState.h

Index: Source/core/css/resolver/StyleResolverState.h
diff --git a/Source/core/css/resolver/StyleResolverState.h b/Source/core/css/resolver/StyleResolverState.h
index a3e013d189c7896de9c3e0518fbb0ccd7d8b72ca..69741e968d3a9eb6d601381d1a3d676cb3a9360f 100644
--- a/Source/core/css/resolver/StyleResolverState.h
+++ b/Source/core/css/resolver/StyleResolverState.h
@@ -117,7 +117,7 @@ public:
     // FIXME: Once styleImage can be made to not take a StyleResolverState
     // this convenience function should be removed. As-is, without this, call
     // sites are extremely verbose.
-    PassRefPtr<StyleImage> styleImage(CSSPropertyID propertyId, CSSValue* value)
+    PassRefPtr<StyleImage> styleImage(CSSPropertyID propertyId, CSSValue value)
     {
         return m_elementStyleResources.styleImage(document(), document().textLinkColors(), style()->color(), propertyId, value);
     }