[Chromoting] Enable jscompile for webapp unittests.

remoting/webapp/crd/js/xmpp_login_handler.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.
 
 'use strict';
 
 /** @suppress {duplicate} */
 var remoting = remoting || {};
 
 /**
@@ skipping 47 matching lines @@
 
   /** @private */
   this.state_ = remoting.XmppLoginHandler.State.INIT;
   /** @private */
   this.jid_ = '';
 
   /** @type {remoting.XmppStreamParser} @private */
   this.streamParser_ = null;
 }
 
+/** @return {function(string, remoting.XmppStreamParser):void} */
+remoting.XmppLoginHandler.prototype.getHandshakeDoneCallbackForTesting =
+    function() {
+  return this.onHandshakeDoneCallback_;
+};
+
 /**
  * States the handshake goes through. States are iterated from INIT to DONE
  * sequentially, except for ERROR state which may be accepted at any point.
  *
  * Following messages are sent/received in each state:
  *    INIT
  *      client -> server: Stream header
  *      client -> server: <starttls>
  *    WAIT_STREAM_HEADER
  *      client <- server: Stream header with list of supported features which
@@ skipping 202 matching lines @@
  * @private
  */
 remoting.XmppLoginHandler.prototype.onError_ = function(error, text) {
   if (this.state_ != remoting.XmppLoginHandler.State.ERROR) {
     this.onErrorCallback_(error, text);
     this.state_ = remoting.XmppLoginHandler.State.ERROR;
   } else {
     console.error(text);
   }
 }