private <C> boolean resetFocusOnCellImpl(Context context, T value, HasCell<T, C> column,
                                             Element cellParent) {
        C cellValue = column.getValue(value);
        Cell<C> cell = column.getCell();
        return cell.resetFocus(context, cellParent, cellValue);
    }
Refresh the headers and column widths.
stroom-core-client-widget/src/main/java/com/google/gwt/user/cellview/client/AbstractCellTable.java