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: 8405ce38 am: 08ee7530

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

Change-Id: I53218923950b00010c2cff516964f408d9932a29