Update remaining NodeTraversal / ElementTraversal methods to take references

Source/core/dom/Text.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 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
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 42 matching lines @@
     return adoptRef(new Text(document, data, CreateEditingText));
 }
 
 PassRefPtr<Node> Text::mergeNextSiblingNodesIfPossible()
 {
     RefPtr<Node> protect(this);
 
     // Remove empty text nodes.
     if (!length()) {
         // Care must be taken to get the next node before removing the current node.
-        RefPtr<Node> nextNode(NodeTraversal::nextPostOrder(this));
+        RefPtr<Node> nextNode(NodeTraversal::nextPostOrder(*this));
         remove(IGNORE_EXCEPTION);
         return nextNode.release();
     }
 
     // Merge text nodes.
     while (Node* nextSibling = this->nextSibling()) {
         if (nextSibling->nodeType() != TEXT_NODE)
             break;
 
         RefPtr<Text> nextText = toText(nextSibling);
@@ skipping 13 matching lines @@
         // Empty nextText for layout update.
         nextText->setDataWithoutUpdate(emptyString());
         document().didMergeTextNodes(nextText.get(), offset);
         // Restore nextText for mutation event.
         nextText->setDataWithoutUpdate(nextTextData);
         document().incDOMTreeVersion();
         didModifyData(oldTextData);
         nextText->remove(IGNORE_EXCEPTION);
     }
 
-    return NodeTraversal::nextPostOrder(this);
+    return NodeTraversal::nextPostOrder(*this);
 }
 
 PassRefPtr<Text> Text::splitText(unsigned offset, ExceptionState& es)
 {
     // IndexSizeError: Raised if the specified offset is negative or greater than
     // the number of 16-bit units in data.
     if (offset > length()) {
         es.throwDOMException(IndexSizeError, ExceptionMessages::failedToExecute("splitText", "Text", "The offset " + String::number(offset) + " is larger than the Text node's length."));
         return 0;
     }
@@ skipping 260 matching lines @@
             result.appendLiteral("; ");
         result.appendLiteral("value=");
         result.append(s);
     }
 
     strncpy(buffer, result.toString().utf8().data(), length - 1);
 }
 #endif
 
 } // namespace WebCore