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

Source/core/css/FontFace.h

Index: Source/core/css/FontFace.h
diff --git a/Source/core/css/FontFace.h b/Source/core/css/FontFace.h
index 23fd4b20372793b535db615a0d9200717b73c63e..38084ccc5eac2fc6e39b5a6e2f6df3f2d3888d93 100644
--- a/Source/core/css/FontFace.h
+++ b/Source/core/css/FontFace.h
@@ -120,11 +120,11 @@ private:
     explicit FontFace(ExecutionContext*);
     FontFace(ExecutionContext*, const AtomicString& family, const FontFaceDescriptors&);
 
-    void initCSSFontFace(Document*, PassRefPtrWillBeRawPtr<CSSValue> src);
+    void initCSSFontFace(Document*, CSSValue src);
     void initCSSFontFace(const unsigned char* data, unsigned size);
     void setPropertyFromString(const Document*, const String&, CSSPropertyID, ExceptionState* = 0);
     bool setPropertyFromStyle(const StylePropertySet&, CSSPropertyID);
-    bool setPropertyValue(PassRefPtrWillBeRawPtr<CSSValue>, CSSPropertyID);
+    bool setPropertyValue(NullableCSSValue, CSSPropertyID);
     bool setFamilyValue(CSSValueList*);
     void loadInternal(ExecutionContext*);
     ScriptPromise fontStatusPromise(ScriptState*);
@@ -133,13 +133,13 @@ private:
 
     AtomicString m_family;
     String m_otsParseMessage;
-    RefPtrWillBeMember<CSSValue> m_src;
-    RefPtrWillBeMember<CSSValue> m_style;
-    RefPtrWillBeMember<CSSValue> m_weight;
-    RefPtrWillBeMember<CSSValue> m_stretch;
-    RefPtrWillBeMember<CSSValue> m_unicodeRange;
-    RefPtrWillBeMember<CSSValue> m_variant;
-    RefPtrWillBeMember<CSSValue> m_featureSettings;
+    NullableCSSValue m_src;
+    NullableCSSValue m_style;
+    NullableCSSValue m_weight;
+    NullableCSSValue m_stretch;
+    NullableCSSValue m_unicodeRange;
+    NullableCSSValue m_variant;
+    NullableCSSValue m_featureSettings;
     LoadStatus m_status;
     PersistentWillBeMember<DOMException> m_error;