CSSValue Immediates: Replace CSSValue usage with const references

Source/core/css/resolver/StyleBuilder.h

Index: Source/core/css/resolver/StyleBuilder.h
diff --git a/Source/core/css/resolver/StyleBuilder.h b/Source/core/css/resolver/StyleBuilder.h
index 28e64069abb7096f1f0865c9943ef9f6d020b294..eed82fee18bafa10ec52ccf57949b75e56e83f9f 100644
--- a/Source/core/css/resolver/StyleBuilder.h
+++ b/Source/core/css/resolver/StyleBuilder.h
@@ -43,10 +43,10 @@ class StyleResolverState;
 class CORE_EXPORT StyleBuilder {
     STATIC_ONLY(StyleBuilder);
 public:
-    static void applyProperty(CSSPropertyID, StyleResolverState&, CSSValue);
+    static void applyProperty(CSSPropertyID, StyleResolverState&, const CSSValue&);
 
 private:
-    static void applyProperty(CSSPropertyID, StyleResolverState&, CSSValue, bool isInitial, bool isInherit);
+    static void applyProperty(CSSPropertyID, StyleResolverState&, const CSSValue&, bool isInitial, bool isInherit);
 };
 
 }