tree c75d90dcd93b3ba1bd92e234c4c120afed3d9339
parent a7a1b57bc8b211ca64598aa42e83eb21789056b9
author Tracy Zhou <tracyzhou@google.com> 1566279752 -0700
committer Tracy Zhou <tracyzhou@google.com> 1568669151 +0000

Make sure that live tile overlay is added only once.

Users report seeing empty launcher. After adding some logging, live tile
overlay can be added twice and removed only once. I added some logic to
make sure that it can only be added once.

Test: manual
Fixes: 135864059
Fixes: 140337263
Change-Id: I9d3325c56e76654f1397cc65979b97a6c0a80aee
(cherry picked from commit d3ef57b4ddb635580fc5898d22b31193894cda60)
(cherry picked from commit 4fa6f63ffd7a5ab230d17e8401d29cae3e5440b8)