Oilpan: move LiveNodeList collections to the heap.

Source/core/dom/Node.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 154 matching lines @@
     bool hasTagName(const QualifiedName&) const;
     virtual String nodeName() const = 0;
     virtual String nodeValue() const;
     virtual void setNodeValue(const String&);
     virtual NodeType nodeType() const = 0;
     ContainerNode* parentNode() const;
     Element* parentElement() const;
     ContainerNode* parentElementOrShadowRoot() const;
     Node* previousSibling() const { return m_previous; }
     Node* nextSibling() const { return m_next; }
-    PassRefPtr<NodeList> childNodes();
+    PassRefPtrWillBeRawPtr<NodeList> childNodes();
     Node* firstChild() const;
     Node* lastChild() const;
 
     void remove(ExceptionState&);
 
     Node* pseudoAwareNextSibling() const;
     Node* pseudoAwarePreviousSibling() const;
     Node* pseudoAwareFirstChild() const;
     Node* pseudoAwareLastChild() const;
 
@@ skipping 473 matching lines @@
     virtual void registerScopedHTMLStyleChild();
     virtual void unregisterScopedHTMLStyleChild();
     size_t numberOfScopedHTMLStyleChildren() const;
 
     unsigned connectedSubframeCount() const;
     void incrementConnectedSubframeCount(unsigned amount = 1);
     void decrementConnectedSubframeCount(unsigned amount = 1);
     void updateAncestorConnectedSubframeCountForRemoval() const;
     void updateAncestorConnectedSubframeCountForInsertion() const;
 
-    PassRefPtr<NodeList> getDestinationInsertionPoints();
+    PassRefPtrWillBeRawPtr<NodeList> getDestinationInsertionPoints();
 
     void setAlreadySpellChecked(bool flag) { setFlag(flag, AlreadySpellCheckedFlag); }
     bool isAlreadySpellChecked() { return getFlag(AlreadySpellCheckedFlag); }
 
     bool isFinishedParsingChildren() const { return getFlag(IsFinishedParsingChildrenFlag); }
 
     virtual void trace(Visitor*);
 
 private:
     enum NodeFlags {
@@ skipping 251 matching lines @@
 } // namespace WebCore
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showNode(const WebCore::Node*);
 void showTree(const WebCore::Node*);
 void showNodePath(const WebCore::Node*);
 #endif
 
 #endif