[automerger skipped] Merge "[RESTRICT AUTOMERGE] Fix UAF in clearkey service's MemoryFileSystem" into qt-dev am: 6889557362 am: b68392b02e -s ours am: 78cc122909 am: 56af5904c1 -s ours

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Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/av/+/13711823

Change-Id: Iecdf09a330672181dd3c94e1522036df84e4ea7d