Send TaskFragmentParentInfo for visibility changes

This CL propagates visibility from Activity to Task, and dispatch
 #onTaskFragmentParentInfoChanged is there's a task visiblity
update. This CL also send the callback when the associated Display
of Task changes.

Test: atest TaskFragmentOrganizerControllerTest
fixes: 243609832

Change-Id: I3b0198cfd11a3ec4917f92d0a1e540cf16827d08