Update TextTrackCue tests to use VTTCue where appropriate

LayoutTests/media/track/opera/interfaces/TextTrack/cues.html

Index: LayoutTests/media/track/opera/interfaces/TextTrack/cues.html
diff --git a/LayoutTests/media/track/opera/interfaces/TextTrack/cues.html b/LayoutTests/media/track/opera/interfaces/TextTrack/cues.html
index 447d196d46c3856ec46379934b6a1da56860fb39..c89316a28da21481c3362daac1ac6fdd33866ca2 100644
--- a/LayoutTests/media/track/opera/interfaces/TextTrack/cues.html
+++ b/LayoutTests/media/track/opera/interfaces/TextTrack/cues.html
@@ -9,29 +9,23 @@ setup(function(){
     window.t1 = video.addTextTrack('subtitles');
     window.track = document.createElement('track');
     track['default'] = true;
-    video.appendChild(track);
+    video.appendChild(track); // queues a task to "honor user preferences...", media element event task source
     window.t2 = track.track;
     window.t1_cues = t1.cues
     window.t2_cues = t2.cues
 });
-// Skipping this test due to https://www.w3.org/Bugs/Public/show_bug.cgi?id=20066,
-// tracking uncommenting this when test is fixed with webkit.org/b/104255
-// test(function(){
-//     assert_equals(t1.cues, t1_cues, 't1.cues should return same object');
-//     assert_equals(t2.cues, t2_cues, 't2.cues should return same object');
-//     assert_not_equals(t1.cues, t2.cues, 't1.cues and t2.cues should be different objects');
-//     assert_not_equals(t1.cues, null, 't1.cues should not be null');
-//     assert_not_equals(t2.cues, null, 't2.cues should not be null');
-//     assert_equals(t1.cues.length, 0, 't1.cues should have length 0');
-//     assert_equals(t2.cues.length, 0, 't2.cues should have length 0');
-// }, document.title+', empty list');
 test(function(){
-    var c = new TextTrackCue(0, 1, "text");
+    assert_equals(t1.cues, t1_cues, 't1.cues should return same object');
+    assert_not_equals(t1.cues, null, 't1.cues should not be null');
+    assert_equals(t1.cues.length, 0, 't1.cues should have length 0');
+}, document.title+', empty list');
+test(function(){
+    var c = new VTTCue(0, 1, "text");
     c.id = "id";
     t1.addCue(c);
     assert_equals(t1.cues, t1_cues, "t1.cues should return same object");
     assert_equals(t1.cues.length, 1, "t1.cues.length");
-    var c2 = new TextTrackCue(1, 2, "text2");
+    var c2 = new VTTCue(1, 2, "text2");
     c2.id = "id2";
     t1.addCue(c2);
     assert_equals(t1.cues, t1_cues, "t1.cues should return the same object after adding a second cue");
@@ -68,4 +62,17 @@ test(function(){
     assert_equals(t1.cues[0].id, 'id');
     assert_equals(t1.cues[1].id, 'id2');
 }, document.title+', changing order');
+// FIXME: disabled because it requires a newer testharness.js
+//async_test(function(){
+//    t1.mode = 'showing';
+//    assert_equals(t2.cues, null, 't2.cues should be null');
+//    video.onplay = this.step_func(function(){
+//        assert_equals(t2.cues, t2_cues, 't2.cues should return same object');
+//        assert_not_equals(t1.cues, t2.cues, 't1.cues and t2.cues should be different objects');
+//        assert_not_equals(t2.cues, null, 't2.cues should not be null');
+//        assert_equals(t2.cues.length, 0, 't2.cues should have length 0');
+//        this.done();
+//    });
+//    video.play(); // queues a task to fire 'play', media element event task source
+//}, document.title+', default attribute');
 </script>