CSSValue Immediates: Make CSSPrimitiveValue a container

Source/core/css/FontFace.cpp

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 260 matching lines @@
     }
     return true;
 }
 
 bool FontFace::setFamilyValue(CSSValueList* familyList)
 {
     // The font-family descriptor has to have exactly one family name.
     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());
     } else if (familyValue.isValueID()) {
         // We need to use the raw text for all the generic family types, since @font-face is a way of actually
         // defining what font to use for those types.
         switch (familyValue.getValueID()) {
         case CSSValueSerif:
             family =  FontFamilyNames::webkit_serif;
             break;
@@ skipping 106 matching lines @@
     toDocument(context)->styleEngine().fontSelector()->fontLoader()->loadPendingFonts();
 }
 
 FontTraits FontFace::traits() const
 {
     FontStyle style = FontStyleNormal;
     if (m_style) {
         if (!m_style->isPrimitiveValue())
             return 0;
 
-        switch (toCSSPrimitiveValue(m_style)->getValueID()) {
+        switch (toCSSPrimitiveValue(*m_style).getValueID()) {
         case CSSValueNormal:
             style = FontStyleNormal;
             break;
         case CSSValueItalic:
         case CSSValueOblique:
             style = FontStyleItalic;
             break;
         default:
             break;
         }
     }
 
     FontWeight weight = FontWeight400;
     if (m_weight) {
         if (!m_weight->isPrimitiveValue())
             return 0;
 
-        switch (toCSSPrimitiveValue(m_weight)->getValueID()) {
+        switch (toCSSPrimitiveValue(*m_weight).getValueID()) {
         case CSSValueBold:
         case CSSValue700:
             weight = FontWeight700;
             break;
         case CSSValueNormal:
         case CSSValue400:
             weight = FontWeight400;
             break;
         case CSSValue900:
             weight = FontWeight900;
@@ skipping 144 matching lines @@
 {
     return m_cssFontFace->hadBlankText();
 }
 
 bool FontFace::hasPendingActivity() const
 {
     return m_status == Loading && executionContext() && !executionContext()->activeDOMObjectsAreStopped();
 }
 
 } // namespace blink