tree 10e18ba29121251f4bf802f572e564054b7b8bce
parent 6937cb79a2cc37049c34a8b7c1652c85132ae050
author Ted Wang <tedwang@google.com> 1577260097 +0800
committer Myles Watson <mylesgw@google.com> 1578441358 +0000

Store volume for devices not support absolute volume

Reigister broadcast for AudioManager.VOLUME_CHANGED_ACTION to monitor
STREAM_MUSIC volume value change.
Store volume value for non absolute volume device whenever
STREAM_MUSIC volume value changed.

Bug: 146561367
Bug: 141746655
Test: manual
Change-Id: I317f5fa31b243eb5f8203d00ec4585c931a066fc