Rename childNodeCount() / childNode() methods for clarity

Source/core/editing/MarkupAccumulator.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2009, 2010 Google Inc. 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
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 488 matching lines @@
 
 // Rules of self-closure
 // 1. No elements in HTML documents use the self-closing syntax.
 // 2. Elements w/ children never self-close because they use a separate end tag.
 // 3. HTML elements which do not have a "forbidden" end tag will close with a separate end tag.
 // 4. Other elements self-close.
 bool MarkupAccumulator::shouldSelfClose(const Node& node)
 {
     if (node.document().isHTMLDocument())
         return false;
-    if (node.hasChildNodes())
+    if (node.hasChildren())
         return false;
     if (node.isHTMLElement() && !elementCannotHaveEndTag(node))
         return false;
     return true;
 }
 
 bool MarkupAccumulator::elementCannotHaveEndTag(const Node& node)
 {
     if (!node.isHTMLElement())
         return false;
 
     // FIXME: ieForbidsInsertHTML may not be the right function to call here
     // ieForbidsInsertHTML is used to disallow setting innerHTML/outerHTML
     // or createContextualFragment.  It does not necessarily align with
     // which elements should be serialized w/o end tags.
     return toHTMLElement(node).ieForbidsInsertHTML();
 }
 
 void MarkupAccumulator::appendEndMarkup(StringBuilder& result, const Node& node)
 {
-    if (!node.isElementNode() || shouldSelfClose(node) || (!node.hasChildNodes() && elementCannotHaveEndTag(node)))
+    if (!node.isElementNode() || shouldSelfClose(node) || (!node.hasChildren() && elementCannotHaveEndTag(node)))
         return;
 
     result.appendLiteral("</");
     result.append(nodeNamePreservingCase(toElement(node)));
     result.append('>');
 }
 
 }