[automerger skipped] Fix double free of play policy in a race condition. am:...

[automerger skipped] Fix double free of play policy in a race condition. am: 537144f7 -s ours am: 77f74ed8 -s ours am: 79c4cf52 -s ours am: 3c525b07 -s ours am: 87c1e3ef -s ours am: 4d8ffde9 -s ours am: b0a3aaa7 -s ours am: e9a8f8a6 -s ours

am skip reason: skipped by user edwinwong

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/13290133

Change-Id: I56005f0a73f0e5058ccd0ef643c98d7d049a699e