Make createNodeIterator() and createTreeWalker() accept default arguments.

Source/core/dom/NodeIterator.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2000 Frederik Holljen (frederik.holljen@hig.no)
  * Copyright (C) 2001 Peter Kelly (pmk@post.com)
  * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2004, 2008 Apple Inc. All rights reserved.
  *
  * 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 19 matching lines @@
 #include "core/dom/Traversal.h"
 #include <wtf/PassRefPtr.h>
 #include <wtf/RefCounted.h>
 
 namespace WebCore {
 
     typedef int ExceptionCode;
 
     class NodeIterator : public ScriptWrappable, public RefCounted<NodeIterator>, public Traversal {
     public:
-        static PassRefPtr<NodeIterator> create(PassRefPtr<Node> rootNode, unsigned whatToShow, PassRefPtr<NodeFilter> filter, bool expandEntityReferences)
+        static PassRefPtr<NodeIterator> create(PassRefPtr<Node> rootNode, unsigned whatToShow, PassRefPtr<NodeFilter> filter)
         {
-            return adoptRef(new NodeIterator(rootNode, whatToShow, filter, expandEntityReferences));
+            return adoptRef(new NodeIterator(rootNode, whatToShow, filter));
         }
         ~NodeIterator();
 
         PassRefPtr<Node> nextNode(ScriptState*, ExceptionCode&);
         PassRefPtr<Node> previousNode(ScriptState*, ExceptionCode&);
         void detach();
 
         Node* referenceNode() const { return m_referenceNode.node.get(); }
         bool pointerBeforeReferenceNode() const { return m_referenceNode.isPointerBeforeNode; }
 
         // This function is called before any node is removed from the document tree.
         void nodeWillBeRemoved(Node*);
 
     private:
-        NodeIterator(PassRefPtr<Node>, unsigned whatToShow, PassRefPtr<NodeFilter>, bool expandEntityReferences);
+        NodeIterator(PassRefPtr<Node>, unsigned whatToShow, PassRefPtr<NodeFilter>);
 
         struct NodePointer {
             RefPtr<Node> node;
             bool isPointerBeforeNode;
             NodePointer();
             NodePointer(PassRefPtr<Node>, bool);
             void clear();
             bool moveToNext(Node* root);
             bool moveToPrevious(Node* root);
         };
 
         void updateForNodeRemoval(Node* nodeToBeRemoved, NodePointer&) const;
 
         NodePointer m_referenceNode;
         NodePointer m_candidateNode;
         bool m_detached;
     };
 
 } // namespace WebCore
 
 #endif // NodeIterator_h