tree 2f62d2a907f045cc9b86c614b797ea469c06eb42
parent 60a6351314a691a9a79c27c61c284ed9f9173fa4
author Ajay Panicker <apanicke@google.com> 1544828102 -0800
committer Ajay Panicker <apanicke@google.com> 1552089387 +0000

DO NOT MERGE: Use a weak pointer to deliver updates to AVRCP devices.

If a device disconnects right before a update message gets queued, the
device becomes null and there is a crash when the callback for the
update executes on the disconnected device. This patch switches the
device reference from being Unretained to using a weak pointer so that
the callback just doesn't execute if the device is disconnected.

Bug: 120431125
Bug: 120445479
Test: Use the same test as b/120477414 as that bug causes a disconnect
at the same time as a media update.

Change-Id: I1dcc08e5c9866106e7ec0dad52505e34b42da600