*aExpirationTime = mMetaDataFile.mExpirationTime;
NS_ENSURE_ARG_POINTER(aExpirationTime); *aExpirationTime = mDiskEntry->mExpirationTime;
NS_IMETHODIMP nsDiskCacheEntryInfo::GetExpirationTime(PRUint32 *aExpirationTime){    *aExpirationTime = mMetaDataFile.mExpirationTime;    return NS_OK;}