[automerger skipped] Merge "MediaSyncEvent: Fix thread safety" am: d84c55fb...

[automerger skipped] Merge "MediaSyncEvent: Fix thread safety" am: d84c55fb am: 3c99f759 am: 41e1bb49 am: 4618df33 am: 222f3731 am: 76581eee -s ours

am skip reason: Merged-In I75677947ab2b508d20d55256187830c3ace9c9e9 with SHA-1 bb7a3f59 is already in history

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/2599069



Change-Id: I35b8ecdfb49325fd0df48f3daaaff347bab247a4
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>