CSSValue Immediates: Make CSSPrimitiveValue a container

Source/core/css/FontFace.cpp

Index: Source/core/css/FontFace.cpp
diff --git a/Source/core/css/FontFace.cpp b/Source/core/css/FontFace.cpp
index c7e204e691b35edd2b93e51fa7960f141ece4737..7404133588ae3aeb73671b8dacb5db59e07750bd 100644
--- a/Source/core/css/FontFace.cpp
+++ b/Source/core/css/FontFace.cpp
@@ -278,7 +278,7 @@ bool FontFace::setFamilyValue(CSSValueList* familyList)
     if (familyList->length() != 1)
         return false;
 
-    CSSPrimitiveValue& familyValue = toCSSPrimitiveValue(familyList->item(0));
+    CSSPrimitiveValue familyValue = toCSSPrimitiveValue(familyList->item(0));
     AtomicString family;
     if (familyValue.isCustomIdent()) {
         family = AtomicString(familyValue.getStringValue());
@@ -405,7 +405,7 @@ FontTraits FontFace::traits() const
         if (!m_style->isPrimitiveValue())
             return 0;
 
-        switch (toCSSPrimitiveValue(m_style)->getValueID()) {
+        switch (toCSSPrimitiveValue(*m_style).getValueID()) {
         case CSSValueNormal:
             style = FontStyleNormal;
             break;
@@ -423,7 +423,7 @@ FontTraits FontFace::traits() const
         if (!m_weight->isPrimitiveValue())
             return 0;
 
-        switch (toCSSPrimitiveValue(m_weight)->getValueID()) {
+        switch (toCSSPrimitiveValue(*m_weight).getValueID()) {
         case CSSValueBold:
         case CSSValue700:
             weight = FontWeight700;