PRInt64 dateMidnight = NormalizeTime(aDate);
PRTime dateMidnight = NormalizeTime(aDate);
GetAgeInDays(PRInt64 aNormalizedNow, PRInt64 aDate){  PRInt64 dateMidnight = NormalizeTime(aDate);  PRInt64 diff;  LL_SUB(diff, aNormalizedNow, dateMidnight);  // two-step process since I can't seem to load  // MSECS_PER_DAY * PR_MSEC_PER_SEC into a PRInt64 at compile time  PRInt64 msecPerSec;  LL_I2L(msecPerSec, PR_MSEC_PER_SEC);  PRInt64 ageInSeconds;  LL_DIV(ageInSeconds, diff, msecPerSec);  PRInt32 ageSec; LL_L2I(ageSec, ageInSeconds);    PRInt64 msecPerDay;  LL_I2L(msecPerDay, MSECS_PER_DAY);    PRInt64 ageInDays;  LL_DIV(ageInDays, ageInSeconds, msecPerDay);  PRInt32 retval;  LL_L2I(retval, ageInDays);  return retval;}