ram {string} id The id of the value (only used for error message).
   * @param {*} value The value to check the type on.
   * @param {string} type The type we expect |value| to be.
   */
    function expectIsType(id, value, type) {
        expect(
            typeof value === type, '[' + value + '] (' + id + ') is not a ' + type);
    }

    expect(!loadTimeData, 'should only include this file once');
    loadTimeData = new LoadTimeData;

    // Expose |loadTimeData| directly on |window|. This is only neces