Merge "Keep splitting tasks in the background with shell transition" into...

Merge "Keep splitting tasks in the background with shell transition" into udc-dev am: 026f3296 am: 93a17a19 am: 2ec19d5a

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22994256



Change-Id: I019cf9b33d628c6f0bb6f7603890477751949995
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>