Add synchronization to prevent concurrent accesses to volume indexes HashMap in VolumeStreamState. Use ConcurrentHashMap for VolumeStreamState mIndex and mLastAudibleIndex. Issue 6421841. Change-Id: I6dee805a79aa5e2cd0ba4072014a2fcdda4ed507
Add synchronization to prevent concurrent accesses to volume indexes HashMap in VolumeStreamState. Use ConcurrentHashMap for VolumeStreamState mIndex and mLastAudibleIndex. Issue 6421841. Change-Id: I6dee805a79aa5e2cd0ba4072014a2fcdda4ed507