Oilpan: move DOM string collection objects to the Oilpan heap.

Source/core/html/ClassList.cpp

 /*
  * Copyright (C) 2010 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:
  * 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 14 matching lines @@
 #include "config.h"
 #include "core/html/ClassList.h"
 
 
 namespace WebCore {
 
 using namespace HTMLNames;
 
 ClassList::ClassList(Element* element) : m_element(element) { }
 
+#if !ENABLE(OILPAN)
 void ClassList::ref()
 {
     m_element->ref();
 }
 
 void ClassList::deref()
 {
     m_element->deref();
 }
+#endif
 
 unsigned ClassList::length() const
 {
     return m_element->hasClass() ? classNames().size() : 0;
 }
 
 const AtomicString ClassList::item(unsigned index) const
 {
     if (index >= length())
         return AtomicString();
     return classNames()[index];
 }
 
 bool ClassList::containsInternal(const AtomicString& token) const
 {
     return m_element->hasClass() && classNames().contains(token);
 }
 
 const SpaceSplitString& ClassList::classNames() const
 {
     ASSERT(m_element->hasClass());
     if (m_element->document().inQuirksMode()) {
         if (!m_classNamesForQuirksMode)
             m_classNamesForQuirksMode = adoptPtr(new SpaceSplitString(value(), false));
         return *m_classNamesForQuirksMode.get();
     }
     return m_element->elementData()->classNames();
 }
 
+void ClassList::trace(Visitor* visitor)
+{
+    visitor->trace(m_element);
+    DOMTokenList::trace(visitor);
+}
+
 } // namespace WebCore