InlinedVisitor: Migrate dom to use inlined tracing

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 41 matching lines @@
     PassRefPtrWillBeRawPtr<Node> nextNode(ExceptionState&);
     PassRefPtrWillBeRawPtr<Node> previousNode(ExceptionState&);
     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&);
 
-    virtual void trace(Visitor*) override;
+    DECLARE_VIRTUAL_TRACE();
 
 private:
     NodeIterator(PassRefPtrWillBeRawPtr<Node>, unsigned whatToShow, PassRefPtrWillBeRawPtr<NodeFilter>);
 
     class NodePointer {
         DISALLOW_ALLOCATION();
     public:
         NodePointer();
         NodePointer(PassRefPtrWillBeRawPtr<Node>, bool);
 
         void clear();
         bool moveToNext(Node* root);
         bool moveToPrevious(Node* root);
 
         RefPtrWillBeMember<Node> node;
         bool isPointerBeforeNode;
 
-        void trace(Visitor* visitor)
+        DEFINE_INLINE_TRACE()
         {
             visitor->trace(node);
         }
     };
 
     void updateForNodeRemoval(Node& nodeToBeRemoved, NodePointer&) const;
 
     NodePointer m_referenceNode;
     NodePointer m_candidateNode;
 };
 
 } // namespace blink
 
 #endif // NodeIterator_h