Merge "Enable background resource cache trim when device goes idle" into...

Merge "Enable background resource cache trim when device goes idle" into udc-dev am: 932879c9 am: 291a7449

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23451202



Change-Id: Ia04cd12c6191b26b66e893c971c08cdd9949e035
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>