[automerger skipped] RESTRICT AUTOMERGE SurfaceFlinger: fix a potential race condition in stealReceiveChannel am: 067def0585 -s ours am: 3102f9b9ab -s ours

am skip reason: subject contains skip directive

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/18766116

Change-Id: Ie66eb09532ea8d3e54a7e9ee75fcb56b84b914a9
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>