QMediaServiceProvider should be removed from the public API,
to provide media objects with a custom media service.
A protected QMediaPlayer/QCamera/QRadioTuner/etc constructor
with QMediaService* parameter is a cleaner and more
flexible solution.
Change-Id: I335cce4bbebe0e548c3df338f206e7be7c93c3dd
Reviewed-by: Michael Goddard <michael.goddard@nokia.com>
Reviewed-by: Jonas Rabbe <jonas.rabbe@nokia.com>