Merge "Set the candidate task windowing mode" into tm-dev am: 8b830691 am: ce628f6b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17753206



Change-Id: I16baeef642065a3279c28a7bed77849e4c4c11e0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>