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

Source/core/css/CSSSVGDocumentValue.h

Index: Source/core/css/CSSSVGDocumentValue.h
diff --git a/Source/core/css/CSSSVGDocumentValue.h b/Source/core/css/CSSSVGDocumentValue.h
index edd23575a140a2c14bf2cd09307e86eb05b4ae4a..df73e1ac128327a1b4fa95c703559b81e2c64085 100644
--- a/Source/core/css/CSSSVGDocumentValue.h
+++ b/Source/core/css/CSSSVGDocumentValue.h
@@ -33,7 +33,7 @@ namespace blink {
 
 class Document;
 
-class CSSSVGDocumentValue : public CSSValue {
+class CSSSVGDocumentValue : public CSSValueObject {
 public:
     static PassRefPtrWillBeRawPtr<CSSSVGDocumentValue> create(const String& url)
     {
@@ -49,7 +49,7 @@ public:
     bool loadRequested() const { return m_loadRequested; }
     bool equals(const CSSSVGDocumentValue&) const;
 
-    DEFINE_INLINE_TRACE_AFTER_DISPATCH() { CSSValue::traceAfterDispatch(visitor); }
+    DEFINE_INLINE_TRACE_AFTER_DISPATCH() { CSSValueObject::traceAfterDispatch(visitor); }
 
 private:
     CSSSVGDocumentValue(const String& url);