diff -r 000000000000 -r 6474c204b198 content/media/test/seek6.js
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/content/media/test/seek6.js	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,39 @@
+function test_seek6(v, seekTime, is, ok, finish) {
+
+// Test for bug identified by Chris Pearce in comment 40 on
+// bug 449159.
+var seekCount = 0;
+var completed = false;
+var interval;
+var sum = 0;
+
+function poll() {
+  sum += v.currentTime;
+}
+
+function startTest() {
+  if (completed)
+    return;
+  interval = setInterval(poll, 10);
+  v.currentTime = Math.random() * v.duration;
+}
+
+function seekEnded() {
+  if (completed)
+    return;
+
+  seekCount++;
+  ok(true, "Seek " + seekCount);
+  if (seekCount == 3) {
+    clearInterval(interval);
+    completed = true;
+    finish();
+  } else {
+    v.currentTime = Math.random() * v.duration;
+  }
+}
+
+v.addEventListener("loadedmetadata", startTest, false);
+v.addEventListener("seeked", seekEnded, false);
+
+}