tree 530356fb1a6a51d5ccb2bbbfea072e1caf6afd0f
parent 7d37e95d5475dd0575232439ce9bf036a9df2b6d
author Tony Mak <tonymak@google.com> 1513108257 +0000
committer Tony Mak <tonymak@google.com> 1513115145 +0000

Fix trySetQuietModeDisabled may introduce deadlock

1. UserController.mLock is held
2. mUnlockProgress.addListener
3. Find that it is unlocked and hence, call the onFinished callback
   right away.
4. Trying to call the callback in UMS, which calls startIntentSender.
5. startIntentSender requires AMS lock.

So, if there is another thread is holding AMS lock and
waiting for UserController.mLock, deadlock happens.

Test: Try turning on / off work mode

Change-Id: I341c2f1572302863d7972742142aa0f3948cd524