Merge "8/ Updating bubbles to run on shell thread" into sc-dev am: 9330a9aced

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/13429215

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I98fbab81b462e977118754069cdb5495b41c694e