/// <summary>
 /// Exports the image to the photo gallery.
 /// </summary>
 /// <param name='pictureId'>
 /// ID of the photo we wish to export
 /// </param>
 private void ExportImageToPhotoGallery(Guid pictureId)
 {
     var filenameResolver = this.CreateFilenameResolver(pictureId);
     var photoGallery = new PhotoGallery();
     photoGallery.SaveImage(filenameResolver.MasterImageFilename);
 }