Merge "Use RootTaskDisplayAreaOrganizer to change windowing mode" into tm-qpr-dev am: 51afb38b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/19931405



Change-Id: If0b6fb28829cca7fc2646ff2bf4e2090af8ce4f2
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>