Bug 1294605 - Enable test code waiting for this bug. r=jib

MozReview-Commit-ID: 3TV58pT1SF2

--HG--
extra : rebase_source : 60c8cf5b672dbe6b6c8275cab55df18d67dd7e18
extra : intermediate-source : fd54a601b0d2eb73cbe2411078a389d025e6a333
extra : source : 631047fcb5af9e5d2bcf4761dc8fbd0d37529270

dom/media/tests/mochitest/test_getUserMedia_addtrack_removetrack_events.html

@@ -50,9 +50,8 @@ runTest(() => getUserMedia({audio: true, video: true})
   })
   .then(s => {
     newStream = s;
-// TODO: Uncomment once bug 1294605 is fixed
-//    info("Stopping an original track");
-//    stopTrack(stream.getTracks()[0]);
+    info("Stopping an original track");
+    stopTrack(stream.getTracks()[0]);
 
     return spinEventLoop();
   })

dom/media/tests/mochitest/test_getUserMedia_mediaStreamTrackClone.html

@@ -54,10 +54,9 @@
       var test = createMediaElement('video', 'testClonePlayback');
       var playback = new MediaStreamPlayback(test, cloneStream);
       return playback.playMedia(false).then(() => {
-// TODO: Uncomment once bug 1294605 is fixed
-//          info("Testing that clones of ended tracks are ended");
-//          cloneStream.clone().getTracks().forEach(t =>
-//            is(t.readyState, "ended", "Track " + t.id + " should be ended"));
+          info("Testing that clones of ended tracks are ended");
+          cloneStream.clone().getTracks().forEach(t =>
+            is(t.readyState, "ended", "Track " + t.id + " should be ended"));
         })
         .then(() => {
           clones.forEach(t => t.stop());