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

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



Change-Id: I55eff58e0fdbb17f1afd85b22923aaed4d67b20b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>