if(typeof window.performance === "object") {
  if(window.performance.now) {
    module.exports = function() { return window.performance.now() }
  } else if(window.performance.webktiNow) {
    module.exports = function() { return window.performance.webkitNow() }
  }
} else if(Date.now) {
  module.exports = Date.now
} else {
  module.exports = function() { return (new Date()).getTime() }
}
@@ -172,18 +172,18 @@
 nce.webk
-t
 i
+t
 Now) %7B%0A 
@@ -379,12 +379,13 @@
 etTime() %7D%0A%7D
+%0A

Update hrtime-polyfill.js