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: ba9e1038 am: cb2c8c3e

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



Change-Id: Ie7e74f9adcc359a52814a3bbd88be75411825916
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>