Have ElementTraversal::firstWithin() take a reference

Source/core/editing/markup.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
  * Copyright (C) 2008, 2009, 2010, 2011 Google Inc. All rights reserved.
  * Copyright (C) 2011 Igalia S.L.
  * Copyright (C) 2011 Motorola Mobility. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
@@ skipping 75 matching lines @@
     {
         m_element->setAttribute(m_name, m_value);
     }
 
 private:
     RefPtr<Element> m_element;
     QualifiedName m_name;
     String m_value;
 };
 
-static void completeURLs(DocumentFragment* fragment, const String& baseURL)
+static void completeURLs(DocumentFragment& fragment, const String& baseURL)
 {
     Vector<AttributeChange> changes;
 
     KURL parsedBaseURL(ParsedURLString, baseURL);
 
-    for (Element* element = ElementTraversal::firstWithin(fragment); element; element = ElementTraversal::next(*element, fragment)) {
+    for (Element* element = ElementTraversal::firstWithin(fragment); element; element = ElementTraversal::next(*element, &fragment)) {
         if (!element->hasAttributes())
             continue;
         unsigned length = element->attributeCount();
         for (unsigned i = 0; i < length; i++) {
             const Attribute* attribute = element->attributeItem(i);
             if (element->isURLAttribute(*attribute) && !attribute->value().isEmpty())
                 changes.append(AttributeChange(element, attribute->name(), KURL(parsedBaseURL, attribute->value()).string()));
         }
     }
 
@@ skipping 528 matching lines @@
 
 PassRefPtr<DocumentFragment> createFragmentFromMarkup(Document& document, const String& markup, const String& baseURL, ParserContentPolicy parserContentPolicy)
 {
     // We use a fake body element here to trick the HTML parser to using the InBody insertion mode.
     RefPtr<HTMLBodyElement> fakeBody = HTMLBodyElement::create(document);
     RefPtr<DocumentFragment> fragment = DocumentFragment::create(document);
 
     fragment->parseHTML(markup, fakeBody.get(), parserContentPolicy);
 
     if (!baseURL.isEmpty() && baseURL != blankURL() && baseURL != document.baseURL())
-        completeURLs(fragment.get(), baseURL);
+        completeURLs(*fragment, baseURL);
 
     return fragment.release();
 }
 
 static const char fragmentMarkerTag[] = "webkit-fragment-marker";
 
 static bool findNodesSurroundingContext(Document* document, RefPtr<Node>& nodeBeforeContext, RefPtr<Node>& nodeAfterContext)
 {
     for (Node* node = document->firstChild(); node; node = NodeTraversal::next(*node)) {
         if (node->nodeType() == Node::COMMENT_NODE && toCharacterData(node)->data() == fragmentMarkerTag) {
@@ skipping 421 matching lines @@
         return;
 
     RefPtr<Text> textNode = toText(node.get());
     RefPtr<Text> textNext = toText(next);
     textNode->appendData(textNext->data());
     if (textNext->parentNode()) // Might have been removed by mutation event.
         textNext->remove(es);
 }
 
 }