tree 7ba60290636e759ac3da7d9f6a35f950e44ca855
parent d1f712d14b3d228c9eab2b1d3ccf459bf502fe3e
author Tracy Zhou <tracyzhou@google.com> 1566279752 -0700
committer Tracy Zhou <tracyzhou@google.com> 1566324988 +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
Change-Id: I9d3325c56e76654f1397cc65979b97a6c0a80aee
(cherry picked from commit d3ef57b4ddb635580fc5898d22b31193894cda60)