tree 83c004b2142ecd4e732e274facab86703d1064c0
parent 31702a6887739e184c83bc36be45ace4f464c3ec
author Keun young Park <keunyoung@google.com> 1582168641 -0800
committer Keun-young Park <keunyoung@google.com> 1582908029 +0000

Finish all fixed Activities when user is switched

- Cluster in pi-car has no system UI and can render screen for old user for
  long time. This brings unnecessary overhead to system.
- Old user's app should be stopped immediately.
- Also launch full screen dialog until something else is launched. The dialog
  is dismissed when a new fixed activity is launched on the display.

Bug: 148429860
Test: Do user switching and check cluster screen with maps mode

Change-Id: If64bc8efa7eb5ea273404e2fba886662a6cef29a
(cherry picked from commit 4e1f5d27eeb6e0a4ee105deae801cd9fb0556370)