return nsComponentManager::CreateInstance(kNavDTDCID, nsnull, NS_GET_IID(nsIDTD), (void**)aInstancePtrResult);
return CallCreateInstance(kNavDTDCID, aInstancePtrResult);
inline nsresult NS_NewNavHTMLDTD(nsIDTD** aInstancePtrResult){  NS_DEFINE_CID(kNavDTDCID, NS_CNAVDTD_CID);  return nsComponentManager::CreateInstance(kNavDTDCID,                                            nsnull,                                            NS_GET_IID(nsIDTD),                                            (void**)aInstancePtrResult);}