Enhance support for filtering routes in route chooser dialog.

Added an onFilterRoutes method to MediaRouteChooserDialog.
In contrast to onFilterRoute, the new method is provided with the
entire list of routes to filter so that it may make global filtering
decisions such as eliminating duplicate or redundant routes
from consideration.

Bug: 13791161
Change-Id: I4c16454c9e4ea7f4acb76e2b18a217242f750ff4
1 file changed