Rename childNodeCount() / childNode() methods for clarity

Source/core/html/parser/HTMLTreeBuilder.cpp

 /*
  * Copyright (C) 2010 Google, Inc. All Rights Reserved.
  * Copyright (C) 2011 Apple 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 325 matching lines @@
 }
 
 HTMLTreeBuilder::FragmentParsingContext::FragmentParsingContext()
     : m_fragment(0)
 {
 }
 
 HTMLTreeBuilder::FragmentParsingContext::FragmentParsingContext(DocumentFragment* fragment, Element* contextElement)
     : m_fragment(fragment)
 {
-    ASSERT(!fragment->hasChildNodes());
+    ASSERT(!fragment->hasChildren());
     m_contextElementStackItem = HTMLStackItem::create(contextElement, HTMLStackItem::ItemForContextElement);
 }
 
 HTMLTreeBuilder::FragmentParsingContext::~FragmentParsingContext()
 {
 }
 
 PassRefPtr<Element> HTMLTreeBuilder::takeScriptToProcess(TextPosition& scriptStartPosition)
 {
     ASSERT(m_scriptToProcess);
@@ skipping 2486 matching lines @@
     ASSERT(m_isAttached);
     // Warning, this may detach the parser. Do not do anything else after this.
     m_tree.finishedParsing();
 }
 
 void HTMLTreeBuilder::parseError(AtomicHTMLToken*)
 {
 }
 
 } // namespace WebCore