[automerger skipped] Fix double free of play policy in a race condition. am: 537144f77b -s ours

am skip reason: skipped by user edwinwong

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

Change-Id: Ib022baa086ed9419690e4801b8f66f8cf1f6c923