SchedulePeriodicCheckin  227 google_apis/gcm/gcm_client_impl.cc     SchedulePeriodicCheckin(last_checkin_time);
SchedulePeriodicCheckin  338 google_apis/gcm/gcm_client_impl.cc     SchedulePeriodicCheckin(last_checkin_time);
SchedulePeriodicCheckin  177 google_apis/gcm/gcm_client_impl.h   void SchedulePeriodicCheckin(const base::Time& last_checkin_time);