Merge "Fix divider bar not shown when entering split with rotation transition"...

Merge "Fix divider bar not shown when entering split with rotation transition" into tm-dev am: 01eda663 am: ba4d1336 am: 031c6210 am: 75c381b5

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18247768



Change-Id: I7259d6cf418a83643dcfe3fc735518665a8af6b5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>