commit f281109786cfb7b5d1cbfd8a9e21088ee5c87348
author Jaewan Kim <jaewan@google.com> Wed May 20 05:40:18 2020 +0900
committer Jaewan Kim <jaewan@google.com> Wed May 20 01:53:33 2020 +0000
tree b80ce4d1332f6f7443e6688a116daed58c349776
parent e7f3897b6a76b091a7d9729c315fcba6176a4ebc

Keep media sessions for stopping user until the stopping is completed

If a user is quickly *switched back*, the user can be started again
without cleaning up its processes, while the onStopUser() is called in
the middle. It's because onStopUser() is for 'stopping is started' but
it may be canceled if the user is started again quickly.

Bug: 154965421
Test: Manual test on AAE emulator with Android-Q, and Pixel 3a XL with Android-R.
Change-Id: I6e51f865dd9e97edd8a465eeba02966b242525b2