Merge "Implement split resize shell transition" into tm-qpr-dev am: 0de58934 am: 94834b2e

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20111337



Change-Id: I3e1d39c4123d3972a659e21fa9c69b68516ec5cc
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>