Merge "Offload teardown logic after BackupAgent crash to a worker thread" into...

Merge "Offload teardown logic after BackupAgent crash to a worker thread" into tm-qpr-dev am: 8f24026d

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19606284



Change-Id: Ie68bd8de52f81ecc9480f82f8657292cd10af0cb
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>