Merge "Fix race condition in process observer" into main am: 05c5ecbe32

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

Change-Id: Ia942272a66a4c190bf9e06df1212edfc2df19406
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>