Merge "Prevent wallpaper flicker while entering split screen from overview"...

Merge "Prevent wallpaper flicker while entering split screen from overview" into tm-dev am: 0b944f6a am: 585411a3 am: 2ddc1362

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/18797269



Change-Id: Ia297d603e54bb9d2023ab8f8ace3238d79fd7ae5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>