Updating WebRTC tests to match the latest WebKit

chrome/test/data/webrtc/manual/peerconnection.js

Index: chrome/test/data/webrtc/manual/peerconnection.js
diff --git a/chrome/test/data/webrtc/manual/peerconnection.js b/chrome/test/data/webrtc/manual/peerconnection.js
index 1f8618115382cb062c7aa0bbff0c20ab26f79e45..7fc352711244a05bfac2b3ac46cda5aa7491c036 100644
--- a/chrome/test/data/webrtc/manual/peerconnection.js
+++ b/chrome/test/data/webrtc/manual/peerconnection.js
@@ -54,25 +54,25 @@ function hangUpFromHere() {
 
 function toggleRemoteVideoFromHere() {
   toggleRemoteStream(function(remoteStream) {
-    return remoteStream.videoTracks[0];
+    return remoteStream.getVideoTracks()[0];
   }, 'video');
 }
 
 function toggleRemoteAudioFromHere() {
   toggleRemoteStream(function(remoteStream) {
-    return remoteStream.audioTracks[0];
+    return remoteStream.getAudioTracks()[0];
   }, 'audio');
 }
 
 function toggleLocalVideoFromHere() {
   toggleLocalStream(function(localStream) {
-    return localStream.videoTracks[0];
+    return localStream.getVideoTracks()[0];
   }, 'video');
 }
 
 function toggleLocalAudioFromHere() {
   toggleLocalStream(function(localStream) {
-    return localStream.audioTracks[0];
+    return localStream.getAudioTracks()[0];
   }, 'audio');
 }