aCharsetOverride,
NS_New_HTML_ContentSinkStream(nsIHTMLContentSink** aInstancePtrResult,                               nsIOutputStream* aOutStream,                              const nsString* aCharsetOverride,                              PRUint32 aFlags){  nsHTMLContentSinkStream* it = new nsHTMLContentSinkStream(aOutStream,                                                            nsnull,                                                            aCharsetOverride,                                                            aFlags);  if (nsnull == it) {    return NS_ERROR_OUT_OF_MEMORY;  }  return it->QueryInterface(kIHTMLContentSinkIID, (void **)aInstancePtrResult);}