Update tests for chrome, as MediaStream label, ended attributes and stop() method will be removed

chrome/test/data/webrtc/webrtc-simulcast.html

Index: chrome/test/data/webrtc/webrtc-simulcast.html
diff --git a/chrome/test/data/webrtc/webrtc-simulcast.html b/chrome/test/data/webrtc/webrtc-simulcast.html
index de7c67a0b7b20561161d5f58d8eff00262ef3407..a5c49e7c7727e5b25d549b149e488f0ec25212b6 100644
--- a/chrome/test/data/webrtc/webrtc-simulcast.html
+++ b/chrome/test/data/webrtc/webrtc-simulcast.html
@@ -166,7 +166,7 @@ function didntGetStream(err) {
 function openCamera(width, height) {
   if (localStream) {
     pcClient.removeStream(localStream);
-    localStream.getVideoTracks().stop();
+    localStream.getVideoTracks()[0].stop();
     localStream = null;
   }
   navigator.webkitGetUserMedia({
@@ -203,15 +203,8 @@ function onServerAnswer(desc) {
 }
 
 function onServerGotStream(e) {
-  trace('Received remote stream: ' + e.stream.label +
-        '; looking up corresponding video tag.');
-
-  var remoteVideo = $(e.stream.label);
-  if (!remoteVideo) {
-    // All streams we receive must have a corresponding video tag defined in the
-    // html, otherwise we can't detect video in it.
-    throw 'Received video with unexpected id ' + e.stream.label;
-  }
+  trace('Received remote stream, looking up corresponding video tag.');
+  var remoteVideo = e.stream;

[philipj_slow, 2015/09/22 09:08:09]

I don't get this change, I think remoteVideo is now a MediaStream, but when why
set remoteVideo.src as if it were an HTMLMediaElement? It looks like the old
code assumed that the MediaStream label was the same as the HTMLMediaElement id,
and now it's just broken?

[shiva.jm, 2015/09/23 03:29:51]

Yes, right we need to use just e.stream.id instead e.stream.label, will test and
upload new patch soon. but some other tests not related to these change are also
failing, will investigate on those as well.

   remoteVideo.src = webkitURL.createObjectURL(e.stream);
 }