Move CSSRuleList to the garbage collected heap

Source/core/css/CSSKeyframesRule.cpp

 /*
  * Copyright (C) 2007, 2008, 2012 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 168 matching lines @@
 }
 
 CSSKeyframeRule* CSSKeyframesRule::item(unsigned index) const
 {
     if (index >= length())
         return 0;
 
     ASSERT(m_childRuleCSSOMWrappers.size() == m_keyframesRule->keyframes().size());
     RefPtrWillBeMember<CSSKeyframeRule>& rule = m_childRuleCSSOMWrappers[index];
     if (!rule)
-        rule = adoptRefWillBeRefCountedGarbageCollected(new CSSKeyframeRule(m_keyframesRule->keyframes()[index].get(), const_cast<CSSKeyframesRule*>(this)));
+        rule = adoptRefWillBeNoop(new CSSKeyframeRule(m_keyframesRule->keyframes()[index].get(), const_cast<CSSKeyframesRule*>(this)));
 
     return rule.get();
 }
 
 CSSRuleList* CSSKeyframesRule::cssRules()
 {
     if (!m_ruleListCSSOMWrapper)
-        m_ruleListCSSOMWrapper = adoptPtr(new LiveCSSRuleList<CSSKeyframesRule>(this));
+        m_ruleListCSSOMWrapper = LiveCSSRuleList<CSSKeyframesRule>::create(this);
     return m_ruleListCSSOMWrapper.get();
 }
 
 void CSSKeyframesRule::reattach(StyleRuleBase* rule)
 {
     ASSERT(rule);
     m_keyframesRule = toStyleRuleKeyframes(rule);
 }
 
 void CSSKeyframesRule::trace(Visitor* visitor)
 {
     CSSRule::trace(visitor);
 #if ENABLE(OILPAN)
     visitor->trace(m_childRuleCSSOMWrappers);
 #endif
     visitor->trace(m_keyframesRule);
+    visitor->trace(m_ruleListCSSOMWrapper);
 }
 
 } // namespace WebCore