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: I1d87673025121d0a1a706894e1a05afc29c20c3f