Disable getMediaDevices tests. Revert to use getSources instead for getUserMedia tests.

content/test/data/media/getusermedia.html

Index: content/test/data/media/getusermedia.html
diff --git a/content/test/data/media/getusermedia.html b/content/test/data/media/getusermedia.html
index 4867a5dcdd71be9bc58568e296f395b357c0a65e..fef58b76f3f8eedc8d4b9517d6548e95172fb358 100644
--- a/content/test/data/media/getusermedia.html
+++ b/content/test/data/media/getusermedia.html
@@ -13,8 +13,8 @@
     reportTestSuccess();
   });
 
-  function getMediaDevices() {
-    navigator.getMediaDevices(function(devices) {
+  function getSources() {
+    MediaStreamTrack.getSources(function(devices) {
       document.title = 'Media devices available';
       sendValueToTest(JSON.stringify(devices));
     });
@@ -220,7 +220,7 @@
     }
   }
 
-  // Calls GetUserMedia twice and verify that the frame rate is as expected for 
+  // Calls GetUserMedia twice and verify that the frame rate is as expected for
   // both streams.
   function twoGetUserMediaAndVerifyFrameRate(constraints1,
                                              constraints2,
@@ -239,7 +239,7 @@
         function(stream) {
           requestSecondGetUserMedia();
           plugStreamIntoVideoElement(stream, 'local-view');
-          detectVideoPlaying('local-view', 
+          detectVideoPlaying('local-view',
               function() {
                 validateFrameRate('local-view', expected_frame_rate1,
                     validateFrameRateCallback);
@@ -251,7 +251,7 @@
           constraints2,
           function(stream) {
             plugStreamIntoVideoElement(stream, 'local-view-2');
-            detectVideoPlaying('local-view-2', 
+            detectVideoPlaying('local-view-2',
                 function() {
                   validateFrameRate('local-view-2', expected_frame_rate2,
                       validateFrameRateCallback);