defineWindow(visible, verticalAnchor, horizontalAnchor, anchorId,
      relativeToggle, rowCount, colCount) {
    this.visible_ = visible;
    this.verticalAnchor_ = verticalAnchor;
    this.horizontalAnchor_ = horizontalAnchor;
    this.anchorId_ = anchorId;
    this.relativeToggle_ = relativeToggle;
    this.rowCount_ = rowCount;
    this.colCount_ = colCount;
  }
@param {boolean} visible
@param {number} verticalAnchor
@param {number} horizontalAnchor
@param {number} anchorId
@param {boolean} relativeToggle
@param {number} rowCount
@param {number} colCount