NS_IMETHOD GetPref(PRInt32 aTag,PRBool& aPref) { return NS_OK; }
nsPlainTextSerializer::GetPref(PRInt32 aTag, PRBool& aPref) { nsHTMLTag theHTMLTag = nsHTMLTag(aTag);  if (theHTMLTag == eHTMLTag_script) { aPref = mFlags & nsIDocumentEncoder::OutputNoScriptContent; } else if (theHTMLTag == eHTMLTag_frameset) { aPref = !(mFlags & nsIDocumentEncoder::OutputNoFramesContent); } else { aPref = PR_FALSE; }  return NS_OK; }
  NS_IMETHOD GetPref(PRInt32 aTag,PRBool& aPref) { return NS_OK; }