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: b17912fd am: e56cac1c

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



Change-Id: I3c5693f7f3c6a841be38edaf2168d0751872bc2a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>