setForceSameDevice(forceSameDevice) {
    if (forceSameDevice !== null) {
      this.uri_.setParameterValue(
          firebaseui.auth.ActionCodeUrlBuilder.Parameter.FORCE_SAME_DEVICE,
          forceSameDevice ? '1' : '0');
    } else {
      this.uri_.removeParameter(
          firebaseui.auth.ActionCodeUrlBuilder.Parameter.FORCE_SAME_DEVICE);
    }
  }
Defines whether to force same device flow.
@param {?boolean} forceSameDevice Whether to force same device flow.