Merge "Add API to desktop mode to bring a desktop task to front" into udc-qpr-dev am: e4fb3654

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23335331



Change-Id: If391423b00336a660201d4a254261bada7a5683b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>