Request ModemActivityInfo with Asynchronous request and cache
The message of requestModemActivityInfo processing is using the
UIThread of the phone process with blocking call. While waiting for
the response from modem, it can cause long processing time
resulting long shutdown time.
Test: manual; shutting down performs correctly, and it seems the
shuting down time decreases from 4 sec to 2.5 sec per my experience
Bug: 141732999
Change-Id: Iaa943612cd08f6f2b2d230df347edbbe390fb632
Merged-In: Iaa943612cd08f6f2b2d230df347edbbe390fb632
(cherry picked from commit 7c5db44c7c86bed9242a9e9060e6d1c058836f02)
1 file changed
