Merge "Use threadsafe death testing for dispatcher tests" into udc-qpr-dev am:...

Merge "Use threadsafe death testing for dispatcher tests" into udc-qpr-dev am: 0b8abab2 am: a82711a1

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/23785088



Change-Id: Iab6a155b7577187bf7b6c17b438ebe738841be7d
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>