var WebVRHelpers = (function() {
  "use strict";

  var RequestPresentOnVRDisplay = function(vrDisplay, vrLayers, callback) {
    if (callback) {
      callback();
    }

    return vrDisplay.requestPresent(vrLayers);
  };

  var API = {
    RequestPresentOnVRDisplay,

    none: false,
  };

  return API;
})();