/**

Polyfills!

*/

// window.performance (function() {

// TODO: Include polyfill for node.js
if (window && typeof window.performance === 'undefined') {
  window.performance = {};
}

if (window && !window.performance.now) {
  var initTimestamp;
  if (window.performance.timing && window.performance.timing.navigationStart) {
    initTimestamp = window.performance.timing.navigationStart;
  } else {
    window.performance.timing = {};
    initTimestamp = window.performance.timing.navigationStart = Date.now ? Date.now() : (new Date()).getTime();
  }
  window.performance.now = function() {
    var now = Date.now ? Date.now() : (new Date()).getTime();
    return now - initTimestamp;
  };
}

})();