init null wl mime types array when new type is offered
init null wl mime types array when new type is offered

tizenorg/platform.upstream.enlightenment,tasn/enlightenment,tasn/enlightenment,rvandegrift/e,tizenorg/platform.upstream.enlightenment,rvandegrift/e,rvandegrift/e,tizenorg/platform.upstream.enlightenment,tasn/enlightenment