Bug 844563 - Crash [@ mozilla::MediaDecoder::SetPreservesPitch], add tests. r=kinetik

content/media/test/crashtests/844563.html

@@ -0,0 +1,5 @@
+<script>
+var a = document.createElementNS("http://www.w3.org/1999/xhtml", "audio");
+a.mozPreservesPitch = a;
+</script>
+

content/media/test/crashtests/crashtests.list

@@ -12,3 +12,4 @@ skip-if(Android) load 691096-1.html # Android sound API can't handle playing lar
 load 752784-1.html
 skip-if(Android||B2G) HTTP load 795892-1.html # load failed, bug 833371 for B2G
 skip-if(Android||B2G) load 789075-1.html # load failed, bug 833371 for B2G
+load 844563.html