tree b99fc1c48a6927d38aba03bda0d4a4751b1b5ec2
parent fcc74217d1ca737e7e0874a5b46d14005e257898
author Tracy Zhou <tracyzhou@google.com> 1566279752 -0700
committer Tracy Zhou <tracyzhou@google.com> 1566283121 -0700

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