[automerger skipped] RESTRICT AUTOMERGE SurfaceFlinger: fix a potential race...

[automerger skipped] RESTRICT AUTOMERGE SurfaceFlinger: fix a potential race condition in stealReceiveChannel am: 0840cdd0 am: 544a3eb0 -s ours am: c9aeff39 -s ours

am skip reason: subject contains skip directive

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/18766212



Change-Id: Ib29196382c66c2847cfa2e239da0ba18120e267a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>