private synchronized void onChoreMissedStartTime() {
    if (choreService != null) {
      choreService.onChoreMissedStartTime(this);
    }
  }
Notify the ChoreService that this chore has missed its start time. Allows the ChoreService to
make the decision as to whether or not it would be worthwhile to increase the number of core
pool threads
hbase-common/src/main/java/org/apache/hadoop/hbase/ScheduledChore.java