Use window.URL instead of window.webkitURL.

content/test/data/media/peerconnection-call.html

Index: content/test/data/media/peerconnection-call.html
diff --git a/content/test/data/media/peerconnection-call.html b/content/test/data/media/peerconnection-call.html
index afd8b0318795ca2a962104034c842b913431fccf..478a0d2d02b5ccfd973ccc78f6f50b58736c7cd8 100644
--- a/content/test/data/media/peerconnection-call.html
+++ b/content/test/data/media/peerconnection-call.html
@@ -498,7 +498,7 @@
   }
 
   function displayAndRemember(localStream) {
-    var localStreamUrl = webkitURL.createObjectURL(localStream);
+    var localStreamUrl = URL.createObjectURL(localStream);
     $('local-view').src = localStreamUrl;
 
     gLocalStream = localStream;
@@ -709,7 +709,7 @@
       return;
     }
     gRemoteStreams[target] = e.stream;
-    var remoteStreamUrl = webkitURL.createObjectURL(e.stream);
+    var remoteStreamUrl = URL.createObjectURL(e.stream);
     var remoteVideo = $(target);
     remoteVideo.src = remoteStreamUrl;
   }