diff -r 000000000000 -r 6474c204b198 dom/tests/browser/worker_bug1004814.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/tests/browser/worker_bug1004814.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,6 @@
+onmessage = function(evt) {
+  console.time('bug1004814');
+  setTimeout(function() {
+    console.timeEnd('bug1004814');
+  }, 200);
+}