Merge "Resize dismiss circle to match bubble size." into rvc-dev am:...

Merge "Resize dismiss circle to match bubble size." into rvc-dev am: 75c9551a am: f23dcf93 am: ccd5303a

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/11689896

Change-Id: I5b1bfc28b9ba373d63e4344286502cadeed4e69f