NS_IMETHODIMP nsPref::GetPrefType(const char *aPrefName, PRInt32 *_retval)
NS_IMETHODIMP nsPref::GetPrefType(const char *pref, PRInt32 * return_type)
NS_IMETHODIMP nsPref::GetPrefType(const char *aPrefName, PRInt32 *_retval){  nsresult rv;  nsCOMPtr<nsIPrefBranch> prefBranch = do_QueryInterface(mPrefService, &rv);  if (NS_SUCCEEDED(rv))    rv = prefBranch->GetPrefType(aPrefName, _retval);  return rv;}