[automerger skipped] Merge "vibrator: Async Callback API Example" am: 7e6b36a327 am: 41076fe0eb am: b7d8fba405
am: 4a184d94a2 -s ours
am skip reason: change_id I338f16d72cd7b1ba60ddf812e4cb87a6011de752 with SHA1 95ac05d731 is in history

Change-Id: Ibe311ec5f6430b7cd05eeee7e2965a27f9d2c2a2