Fixed some issues where conversation badges would not be visible

Badges would only update once the next update of the shelf came in,
so they would sometimes would remain without a background for a
short time.

Bug: 150905003
Test: add conversations, observe normal background after expanding QS and flinging down
Change-Id: If8756ac8916e6e1fc51cf3a90c34c87d8db71db6
8 files changed