Bug 1533909 - part3 : add a crash test. r=jya

Differential Revision: https://phabricator.services.mozilla.com/D23088

--HG--
extra : moz-landing-system : lando

dom/media/test/crashtests/1533909.html

@@ -0,0 +1,17 @@
+<script>
+function eh1() {
+  d.track.addCue(new VTTCue(0.01, 0.69, "Y"))
+}
+function eh2() {
+  a.currentTime = 0.43
+  c.addEventListener("DOMNodeRemoved", eh1)
+  a.append(b)
+  a.appendChild(c)
+}
+</script>
+<canvas id="c">
+<q id="b">
+</canvas>
+<audio id="a" src="data:audio/mpeg;base64,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">
+<track id="d"></track>
+<iframe onload="eh2()">

dom/media/test/crashtests/crashtests.list

@@ -116,3 +116,4 @@ load 1236639.html
 test-pref(media.navigator.permission.disabled,true) load 1388372.html
 load 1494073.html
 skip-if(Android) load 1526044.html # Bug 1528391
+load 1533909.html