Merge "[Letterbox] Remove multi-window restriction from aspect ratio logic."...

Merge "[Letterbox] Remove multi-window restriction from aspect ratio logic." into tm-qpr-dev am: 86a33bf1 am: 2a601ddf

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18404626



Change-Id: Iba561f94e2723edfac07d3d688b933c446e47461
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>