nsHTMLTokenizer* it = new nsHTMLTokenizer();
nsHTMLTokenizer* it = new nsHTMLTokenizer(aMode,aPlaintext);
NS_HTMLPARS nsresult NS_NewHTMLTokenizer(nsITokenizer** aInstancePtrResult) {  NS_PRECONDITION(nsnull != aInstancePtrResult, "null ptr");  if (nsnull == aInstancePtrResult) {    return NS_ERROR_NULL_POINTER;  }  nsHTMLTokenizer* it = new nsHTMLTokenizer();  if (nsnull == it) {    return NS_ERROR_OUT_OF_MEMORY;  }  return it->QueryInterface(kClassIID, (void **) aInstancePtrResult);}