title: SystemMediaTransportControl GetForCurrentView() fails in audio background task on Desktop Device Family (UWP C#
body: <p>I'm trying to bring over my C# WP 8.1 Background Audio Task to UWP and everything works, except trying to get the UVC using Windows.Media.Playback.SystemMediaTransportControls.GetForCurrentView() throws the current exception on Desktop devices: "Could Not Find an appropriate view to be associated with this instance of the MediaPlaybackControl. Please make sure that a view has been initialized".
  Is it simply a behavior that has yet to be converged, or do I need to control and update the UVC via my app on Desktop class device?</p>