Oilpan: move LiveNodeList collections to the heap.

Source/core/dom/ParentNode.h

 /*
  * Copyright (C) 2013 Samsung Electronics. 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 15 matching lines @@
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef ParentNode_h
 #define ParentNode_h
 
 #include "core/dom/ContainerNode.h"
 #include "core/dom/ElementTraversal.h"
+#include "platform/heap/Handle.h"
 
 namespace WebCore {
 
 class ParentNode {
 public:
-    static PassRefPtr<HTMLCollection> children(ContainerNode& node)
+    static PassRefPtrWillBeRawPtr<HTMLCollection> children(ContainerNode& node)
     {
         return node.children();
     }
 
     static Element* firstElementChild(ContainerNode& node)
     {
         return ElementTraversal::firstChild(node);
     }
 
     static Element* lastElementChild(ContainerNode& node)
     {
         return ElementTraversal::lastChild(node);
     }
 
     static unsigned childElementCount(ContainerNode& node)
     {
         unsigned count = 0;
         for (Element* child = ElementTraversal::firstWithin(node); child; child = ElementTraversal::nextSibling(*child))
             ++count;
         return count;
     }
 
     static PassRefPtr<Element> querySelector(ContainerNode& node, const AtomicString& selectors, ExceptionState& exceptionState)
     {
         return node.querySelector(selectors, exceptionState);
     }
 
-    static PassRefPtr<NodeList> querySelectorAll(ContainerNode& node, const AtomicString& selectors, ExceptionState& exceptionState)
+    static PassRefPtrWillBeRawPtr<NodeList> querySelectorAll(ContainerNode& node, const AtomicString& selectors, ExceptionState& exceptionState)
     {
         return node.querySelectorAll(selectors, exceptionState);
     }
 };
 
 } // namespace WebCore
 
 #endif // ParentNode_h