Merge "[flexiglass] Pattern bouncer UX polish." into udc-dev am: e2ccf110...

Merge "[flexiglass] Pattern bouncer UX polish." into udc-dev am: e2ccf110 am: a5ab019a am: f6f0b39b am: b2556b18

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/23246162



Change-Id: I871877abb83f00815f31ecf183049a696a248d63
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>