Merge "Kill process if it's cached & idle and in forced-app-standby mode" into...

Merge "Kill process if it's cached & idle and in forced-app-standby mode" into sc-dev am: d5c7dc04 am: 97f0cf50

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14449187

Change-Id: Ie6fd2f4ece41a4d24106d0b8e1c096351c00dd02