[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: 3dfb44a2 -s ours am: dfe040cf -s ours am: 5c13ebfc -s ours

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

Change-Id: I9bcdc2e8b0eaaa236df6c74e8c1295a406e37ba0