Merge "Don’t dismiss split screen while were occluded" into udc-dev am: d543ee3d am: b309bbbd

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21504131



Change-Id: Ic7f6bb1f9624a8d7f65be23ac0c5a51364f7d39a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>