Bug 969583 - Remove the canplaythrough listener inside the canplaythrough listener, so that the listener only runs once. r=cpearce

content/media/test/test_mediarecorder_record_no_timeslice.html

@@ -85,6 +85,7 @@ function startTest(test, token) {
   };
 
   element.oncanplaythrough = function () {
+    element.oncanplaythrough = null;
     // If content has ended, skip the test
     if (element.ended) {
       ok(true, 'ended fired before canplaythrough, skipping test');

content/media/test/test_mediarecorder_record_session.html

@@ -55,6 +55,7 @@ function startTest(test, token) {
   }
 
   element.oncanplaythrough = function () {
+    element.oncanplaythrough = null;
     for (var i = 0; i < mExpectStopCount; i++) {
       mediaRecorder.start(1000);
       mediaRecorder.stop();

content/media/test/test_mediarecorder_record_timeslice.html

@@ -86,6 +86,7 @@ function startTest(test, token) {
 
   // Start recording once canplaythrough fires
   element.oncanplaythrough = function() {
+    element.oncanplaythrough = null;
     mediaRecorder.start(250);
     is(mediaRecorder.state, 'recording', 'Media recorder should be recording');
     is(mediaRecorder.stream, element.stream,

content/media/test/test_mediarecorder_state_transition.html

@@ -156,6 +156,7 @@ function startTest(test, token) {
   element.stream = element.mozCaptureStream();
 
   element.oncanplaythrough = function () {
+    element.oncanplaythrough = null;
     runStateTransitionTests(element.stream);
     manager.finished(token);
   };