Merge "Create new display rotation compat toast string for multi-window" into udc-dev am: 5fa932d5a8 am: dc07a60e60

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23517416

Change-Id: I47e84ffd8e5ec23ab3375c3be5b97fca9ef91b32
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>