code: function() {
          var dimensionModel, height;
  
          if (this.$scrollBorder) {
              dimensionModel = this.dimensionModel;
              height = dimensionModel.get('bodyHeight') - dimensionModel.getScrollXHeight();
              this.$scrollBorder.height(height);
          }
      }
docs: Resets the height of a vertical scroll-bar border
  @private