Rename childNodeCount() / childNode() methods for clarity

Source/core/rendering/RenderTreeAsText.cpp

 /*
  * Copyright (C) 2004, 2006, 2007 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 103 matching lines @@
 
 static bool isEmptyOrUnstyledAppleStyleSpan(const Node* node)
 {
     if (!node || !node->isHTMLElement() || !node->hasTagName(spanTag))
         return false;
 
     const HTMLElement* elem = toHTMLElement(node);
     if (elem->getAttribute(classAttr) != "Apple-style-span")
         return false;
 
-    if (!node->hasChildNodes())
+    if (!node->hasChildren())
         return true;
 
     const StylePropertySet* inlineStyleDecl = elem->inlineStyle();
     return (!inlineStyleDecl || inlineStyleDecl->isEmpty());
 }
 
 String quoteAndEscapeNonPrintables(const String& s)
 {
     StringBuilder result;
     result.append('"');
@@ skipping 628 matching lines @@
     element->document().updateLayout();
 
     RenderObject* renderer = element->renderer();
     if (!renderer || !renderer->isListItem())
         return String();
 
     return toRenderListItem(renderer)->markerText();
 }
 
 } // namespace WebCore