Merge "Improve exit transition for task close case" into tm-qpr-dev am:...

Merge "Improve exit transition for task close case" into tm-qpr-dev am: 2e075980 am: 8790168a am: 6e59a203 am: c0b75914

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/22162082



Change-Id: Ifef547f93e86a9d2314a52642225e0face78c214
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>