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

Source/core/css/CSSContentDistributionValue.h

Index: Source/core/css/CSSContentDistributionValue.h
diff --git a/Source/core/css/CSSContentDistributionValue.h b/Source/core/css/CSSContentDistributionValue.h
index ba5590b8f514f5994f8c73d8cbfd290e091a5257..f7043db976c8cb1210991b372ae09400ef3f4129 100644
--- a/Source/core/css/CSSContentDistributionValue.h
+++ b/Source/core/css/CSSContentDistributionValue.h
@@ -11,7 +11,7 @@
 
 namespace blink {
 
-class CSSContentDistributionValue : public CSSValue {
+class CSSContentDistributionValue : public CSSValueObject {
 public:
     static PassRefPtrWillBeRawPtr<CSSContentDistributionValue> create(CSSValueID distribution, CSSValueID position, CSSValueID overflow)
     {
@@ -29,7 +29,7 @@ public:
 
     bool equals(const CSSContentDistributionValue&) const;
 
-    DEFINE_INLINE_TRACE_AFTER_DISPATCH() { CSSValue::traceAfterDispatch(visitor); }
+    DEFINE_INLINE_TRACE_AFTER_DISPATCH() { CSSValueObject::traceAfterDispatch(visitor); }
 
 private:
     CSSContentDistributionValue(CSSValueID distribution, CSSValueID position, CSSValueID overflow);