REBOOT_REASON_OS_UPDATE 94 chrome/browser/chromeos/app_mode/kiosk_app_update_service.cc case REBOOT_REASON_OS_UPDATE: REBOOT_REASON_OS_UPDATE 343 chrome/browser/chromeos/system/automatic_reboot_manager.cc reboot_reason = AutomaticRebootManagerObserver::REBOOT_REASON_OS_UPDATE;