Merge "Fix race condition in process observer" into main am: 05c5ecbe am: 40276f26

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/3246051



Change-Id: I2f13c65a30a50f8ba6e7c033604d5c9756f3c70f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>