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

Merge "Revert "Kill process if it's cached & idle and in forced-app-standby mode"" into sc-dev am: 160fb766

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15131779

Change-Id: Ied32e6dc6a5074f28d1dc035214b681c58eccb60