[automerger skipped] Merge "Fix UAF in clearkey service's MemoryFileSystem"...

[automerger skipped] Merge "Fix UAF in clearkey service's MemoryFileSystem" into rvc-dev am: 00b96f0a am: 3f0b90d0 am: 314fb15e -s ours

am skip reason: skipped by user edwinwong

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/13462731

Change-Id: I653ae11949ce59382672b526a77b87fcb9605da1