Merge "Consolidate animation to show divider bar" into tm-dev am: 56043e3d...

Merge "Consolidate animation to show divider bar" into tm-dev am: 56043e3d am: 1d0a63f6 am: 0ffdd0f6 am: 3fbfac31

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/18157809



Change-Id: Ia2c2ab23e87ae8a6e466a42b1a4e1732021589f0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>