Don't show dot when bubble is expanded & gets update

When show in shade is updated we need to factor in whether the bubble
is expanded or not.

Test: manual - get a bubble, expand it, and change the height using the
               slider (this causes an update), note that the height changes
               but a new notificaiton doesn't appear
Fixes: 134423445
Change-Id: I1427e80bc044472ea40dfc2670000b90b86f0fa5
1 file changed