[Chromoting] Add ClientSession.Capability to enable Gnubby-based auth.

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 91 matching lines @@
  * @return {Array.<string>} A list of |ClientSession.Capability|s required
  *     by this application.
  */
 remoting.DesktopRemoting.prototype.getRequiredCapabilities = function() {
   return [
     remoting.ClientSession.Capability.SEND_INITIAL_RESOLUTION,
     remoting.ClientSession.Capability.RATE_LIMIT_RESIZE_REQUESTS,
     remoting.ClientSession.Capability.VIDEO_RECORDER,
     // TODO(aiguha): Add this capability based on a gyp/command-line flag,
     // rather than by default.
-    remoting.ClientSession.Capability.CAST
+    remoting.ClientSession.Capability.CAST,
+    remoting.ClientSession.Capability.GNUBBY_AUTH
   ];
 };
 
 /**
  * @param {remoting.ClientSession} clientSession
  */
 remoting.DesktopRemoting.prototype.onConnected = function(clientSession) {
   // Set the text on the buttons shown under the error message so that they are
   // easy to understand in the case where a successful connection failed, as
   // opposed to the case where a connection never succeeded.
@@ skipping 85 matching lines @@
   if (mode == remoting.ClientSession.Mode.IT2ME) {
     remoting.setMode(remoting.AppMode.CLIENT_CONNECT_FAILED_IT2ME);
     remoting.hangoutSessionEvents.raiseEvent(
         remoting.hangoutSessionEvents.sessionStateChanged,
         remoting.ClientSession.State.FAILED
     );
   } else {
     remoting.setMode(remoting.AppMode.CLIENT_CONNECT_FAILED_ME2ME);
   }
 };