[automerger skipped] media utils: fix UAF in TimeCheckThread am: cc8271ea11 am: 06e3f45691 -s ours am: d0078cd32b -s ours
am skip reason: Change-Id If4adab8c15a319dc84b7003adf3ac59a3980f075 with SHA-1 9b9b3de144 is in history

Change-Id: Ieea43ecf33e259034ffd63e8f8f5e29087502e46