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 am: 21ed398e am: 428164b0

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

Change-Id: Id3c016daf191cc4433da7ffbfae9e3e9c8f6d14a