Merge "Move kids mode relative logic to wm shell" into tm-dev am: b9109dd6 am: 8944a2ed am: d0c4bf29 am: ad42dced

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17903530



Change-Id: I6aa32153576b0e8cdbcc99cac2b3fdaf23323299
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>