Use strong pointer in ALooper to avoid use-after-free am: 7d712cfe6d am: 3eb9984044 am: fa817e30bd am: 2ce843e698 am: 420a6159b5

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/hardware/interfaces/+/13209505

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ia8d3d678674b3a960782fc76387e24db63c80d4a