RTCPeerConnection.ontrack event added.

chrome/test/data/webrtc/peerconnection_rtp.js

Index: chrome/test/data/webrtc/peerconnection_rtp.js
diff --git a/chrome/test/data/webrtc/peerconnection_rtp.js b/chrome/test/data/webrtc/peerconnection_rtp.js
index 638ae8a3e48b3f65a1cb2eaf1c4daadf0665399f..adc0f71a2db2f58e946595f9208fbdd51d12ed82 100644
--- a/chrome/test/data/webrtc/peerconnection_rtp.js
+++ b/chrome/test/data/webrtc/peerconnection_rtp.js
@@ -4,6 +4,12 @@
  * 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.
@@ -155,6 +161,46 @@ function createAndAddAudioAndVideoTrack(streamArgumentType) {
 }
 
 /**
+ * ...
+ */
+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.
  *