[Chromoting] Convert VideoFrameRecorder into a proper protocol extension.

remoting/webapp/crd/js/desktop_remoting.js

 // Copyright 2014 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.
 
 /**
  * @fileoverview
  * This class implements the functionality that is specific to desktop
  * remoting ("Chromoting" or CRD).
  */
 
@@ skipping 176 matching lines @@
 
   this.connectedView_ = new remoting.DesktopConnectedView(
       document.getElementById('client-container'), connectionInfo);
 
   // By default, under ChromeOS, remap the right Control key to the right
   // Win / Cmd key.
   if (remoting.platformIsChromeOS()) {
     connectionInfo.plugin().setRemapKeys('0x0700e4>0x0700e7');
   }
 
+  var sessionConnector = remoting.app.getSessionConnector();
   if (connectionInfo.mode() === remoting.DesktopConnectedView.Mode.ME2ME) {
-    var sessionConnector = remoting.app.getSessionConnector();
     if (remoting.app.hasCapability(remoting.ClientSession.Capability.CAST)) {
       sessionConnector.registerProtocolExtension(
           new remoting.CastExtensionHandler());
     }
     sessionConnector.registerProtocolExtension(
         new remoting.GnubbyAuthHandler());
   }
+  if (connectionInfo.session().hasCapability(
+          remoting.ClientSession.Capability.VIDEO_RECORDER)) {
+    var recorder = new remoting.VideoFrameRecorder();
+    sessionConnector.registerProtocolExtension(recorder);
+    this.connectedView_.setVideoFrameRecorder(recorder);
+  }
 
   if (remoting.pairingRequested) {
     /**
      * @param {string} clientId
      * @param {string} sharedSecret
      */
     var onPairingComplete = function(clientId, sharedSecret) {
       var connector = remoting.app.getSessionConnector();
       var host = remoting.hostList.getHostForId(connector.getHostId());
       host.options.pairingInfo.clientId = clientId;
@@ skipping 162 matching lines @@
 /** @returns {remoting.DesktopConnectedView} */
 remoting.DesktopRemoting.prototype.getConnectedViewForTesting = function() {
   return this.connectedView_;
 };
 
 /**
  * Global instance of remoting.DesktopRemoting used for testing.
  * @type {remoting.DesktopRemoting}
  */
 remoting.desktopDelegateForTesting = null;