Merge "Skip noteAppKill if the attaching pid is unknown to us" into sc-dev am: c1e65680 am: 5c0917b4 am: eae97eea

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14676306

Change-Id: Ic4bdbc89e14d4aba43cd77081463c1cbf501bb9a