Merge "Fix SplitContainer not updated when folded." into tm-qpr-dev am: c0ee7bde am: d6faddae

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20064106



Change-Id: I160e6c570123a3ee9709a1661b4b6d6c9accae1a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>