Merge "PSS: Set MODE_BACKGROUND_ACTIVITY_START_ALLOWED starting recent tasks" into udc-qpr-dev am: 5b51a6b11b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24720977

Change-Id: I8bfcf833f830fad4fe00568d53584ab3cf45a9ac
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>