NS_ENSURE_ARG_POINTER(expirationTime);
NS_ENSURE_ARG_POINTER(result);
nsCacheEntryInfo::GetExpirationTime(PRUint32 * expirationTime){    NS_ENSURE_ARG_POINTER(expirationTime);    if (!mCacheEntry)  return NS_ERROR_NOT_AVAILABLE;    *expirationTime = mCacheEntry->ExpirationTime();    return NS_OK;}