[automerger skipped] [RESTRICT AUTOMERGE] Fix double free of play policy in a...

[automerger skipped] [RESTRICT AUTOMERGE] Fix double free of play policy in a race condition. am: a9249b23 -s ours am: eb95e3ce -s ours am: d84fa027 -s ours am: ca480675 -s ours am: c6e236bc -s ours am: 9bef9fe9 -s ours am: 95d9a7a3 -s ours am: b5f403e8 -s ours

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Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/13290132

Change-Id: I17b58f52ec01d1cfa05b05f8926114a67f662d57