Remove remaining callers of deprecatedShadowAncestorNode

Source/core/dom/Node.cpp

 /*
  * 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 Nokia Corporation and/or its subsidiary(-ies)
  * Copyright (C) 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
@@ skipping 1129 matching lines @@
     return parentOrShadowHostNode() ? parentOrShadowHostNode()->canStartSelection() : true;
 }
 
 Element* Node::shadowHost() const
 {
     if (ShadowRoot* root = containingShadowRoot())
         return root->host();
     return 0;
 }
 
-Node* Node::deprecatedShadowAncestorNode() const
-{
-    if (ShadowRoot* root = containingShadowRoot())
-        return root->host();
-
-    return const_cast<Node*>(this);
-}
-
 ShadowRoot* Node::containingShadowRoot() const
 {
     Node& root = treeScope().rootNode();
     return root.isShadowRoot() ? toShadowRoot(&root) : 0;
 }
 
 Node* Node::nonBoundaryShadowTreeRootNode()
 {
     ASSERT(!isShadowRoot());
     Node* root = this;
@@ skipping 1395 matching lines @@
         node->showTreeForThis();
 }
 
 void showNodePath(const WebCore::Node* node)
 {
     if (node)
         node->showNodePathForThis();
 }
 
 #endif