Update event-tracker to latest version

r2/r2/public/static/js/events.js

@@ -40,9 +40,9 @@
       return this;
     },
 
-    send: function() {
+    send: function(done) {
       if (tracker) {
-        tracker.send();
+        tracker.send(done);
       }
       return this;
     }

r2/r2/public/static/js/lib/event-tracker.js

@@ -1,6 +1,6 @@
 /**
  * event-tracker
- * @version v1.1.0
+ * @version v1.1.2
  * DO NOT EDIT THIS FILE DIRECTLY! Edit the source at:
  * @source https://github.com/reddit/event-tracker
  */
@@ -14,7 +14,13 @@
   // Stub out `now` so we can use a more precise number in uuid generation, if
   // available.
   function now() {
-    return global.performance ? global.performance.now() : (new Date()).getTime();
+    if (global.performance && typeof global.performance.now === 'function') {
+      return global.performance.now();
+    } else if (typeof Date.now === 'function') {
+      return Date.now();
+    } else {
+      return (new Date()).getTime();
+    }
   }
 
   // Pulled from elsewhere
@@ -35,7 +41,7 @@
    *
    * clientKey: the name of the secret key you must have to send events, like 'Test1'
    * clientSecret: the secret key you must have to send events, like 'ab42sdfsafsc'
-   * postData: a function with the object arg ({url, data, query, headers}).
+   * postData: a function with the object arg ({url, data, query, headers, done}).
    *   You'll supply a function that wraps jQuery.ajax or superagent.
    * eventsUrl: the url of the events endpoint, like 'https://stats.redditmedia.com/events'
    * appName: the name of your client app, like 'Alien Blue'
@@ -110,8 +116,9 @@
   /*
    * Immediately flush the buffer. Called internally as well during buffer
    * timeout.
+   * done: optional callback to fire on complete.
    */
-  EventTracker.prototype.send = function send() {
+  EventTracker.prototype.send = function send(done) {
     if (this.buffer.length) {
       var data = JSON.stringify(this.buffer);
 
@@ -128,7 +135,8 @@
         query: {
           key: this.clientKey,
           mac: hash,
-        }
+        },
+        done: done || function() {},
       });
 
       this.buffer = [];