Add an accessor for useCount_ parameter, so that PipelineHandler child classes can access it to verify whether the media device is already locked or not. Signed-off-by: Antoine Bouyer <antoine.bouyer@nxp.com> Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com> Reviewed-by: Barnabás Pőcze <barnabas.pocze@ideasonboard.com> [Kieran: fix extraneous ;] Signed-off-by: Kieran Bingham <kieran.bingham@ideasonboard.com>