RTCPeerConnection.ontrack event added.

chrome/test/data/webrtc/peerconnection_rtp.js

 /**
  * Copyright 2017 The Chromium Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
+/**
+ * ...
+ * @private
+ */
+var gOnTrackEvents = [];
+
 // Public interface to tests. These are expected to be called with
 // ExecuteJavascript invocations from the browser tests and will return answers
 // through the DOM automation controller.
 
 /**
  * Adds |count| streams to the peer connection, with one audio and one video
  * track per stream.
  *
  * Returns "ok-streams-created-and-added" on success.
  */
@@ skipping 131 matching lines @@
         let videoStreamId = videoStream ? videoStream.id : 'null';
         returnToTest('ok-' + audioStreamId + ' ' + audioTrack.id
                      + ' ' + videoStreamId + ' ' + videoTrack.id);
       },
       function(error) {
         throw failTest('getUserMedia failed: ' + error);
       });
 }
 
 /**
+ * ...
+ */
+function setupOnTrackListener() {
+  peerConnection_().ontrack = function(event) {
+    console.log('HBOS ontrack: ' + event);
+    console.log('HBOS event.receiver: ' + event.receiver);
+    console.log('HBOS event.receiver.track: ' + event.receiver.track);
+    console.log('HBOS event.receiver.track.id: ' + event.receiver.track.id);
+    console.log('HBOS event.track: ' + event.track);
+    console.log('HBOS event.track.id: ' + event.track.id);
+    console.log('HBOS event.streams: ' + event.streams);
+    for (let i = 0; i < event.streams.length; ++i) {
+      console.log('HBOS event.streams[i]: ' + event.streams[i]);
+      console.log('HBOS event.streams[i].id: ' + event.streams[i].id);
+    }
+    gOnTrackEvents.push(event);
+  }
+  returnToTest('ok-ontrack-wired');
+}
+
+/**
+ * ...
+ */
+function getOnTrackEvents() {
+  let result = '';
+  gOnTrackEvents.forEach(function(event) {
+    if (event.receiver.track != event.track)
+      throw failTest('RTCTrackEvent\'s track does not match its receiver\'s.');
+    let eventString = 'RTCTrackEvent ' + event.track.id;
+    event.streams.forEach(function(stream) {
+      eventString += ' ' + stream.id;
+    });
+    if (result.length)
+      result += ' ';
+    result += eventString;
+  });
+  returnToTest('ok-' + result);
+}
+
+/**
  * Calls |removeTrack| with the first sender that has the track with |trackId|
  * and verifies the SDP is updated accordingly.
  *
  * Returns "ok-sender-removed" on success.
  */
 function removeTrack(trackId) {
   let sender = null;
   let otherSenderHasTrack = false;
   peerConnection_().getSenders().forEach(function(s) {
     if (s.track && s.track.id == trackId) {
@@ skipping 107 matching lines @@
   if (a == null)
     return b == null;
   if (a.size != b.size)
     return false;
   a.forEach(function(value) {
     if (!b.has(value))
       return false;
   });
   return true;
 }