Merge "Hide footer for empty shade even if bubbles are present" into sc-dev am: e2eda079 am: caa61e6c am: 251118e5

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14949618

Change-Id: Ie0485f80160d28e21fca37fed37708eaeddc00be