Upgrade to libxml 2.9.2 and libxslt 1.1.28

remoting/webapp/base/js/xmpp_login_handler_unittest.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.
 
 (function() {
 
 'use strict';
 
 var testUsername = 'testUsername@gmail.com';
 var testToken = 'testToken';
@@ skipping 119 matching lines @@
 
   sinon.assert.calledWith(
       sendMessage,
       '<stream:stream to="google.com" version="1.0" xmlns="jabber:client" ' +
           'xmlns:stream="http://etherx.jabber.org/streams">' +
           '<starttls xmlns="urn:ietf:params:xml:ns:xmpp-tls"/>');
   sendMessage_spy.reset();
 
   loginHandler.onDataReceived(base.encodeUtf8(
       '<stream:stream from="google.com" id="78A87C70559EF28A" version="1.0" ' +
-          'xmlns:stream="http://etherx.jabber.org/streams"' +
+          'xmlns:stream="http://etherx.jabber.org/streams" ' +
           'xmlns="jabber:client">' +
         '<stream:features>' +
           '<starttls xmlns="urn:ietf:params:xml:ns:xmpp-tls">' +
             '<required/>' +
           '</starttls>' +
           '<mechanisms xmlns="urn:ietf:params:xml:ns:xmpp-sasl">' +
             '<mechanism>X-OAUTH2</mechanism>' +
             '<mechanism>X-GOOGLE-TOKEN</mechanism>' +
           '</mechanisms>' +
         '</stream:features>'));
@@ skipping 18 matching lines @@
 
 QUnit.test('should return UNEXPECTED error when failed to parse stream',
      function() {
   handshakeBase();
   loginHandler.onDataReceived(
       base.encodeUtf8('BAD DATA'));
   sinon.assert.calledWith(onError, remoting.Error.unexpected());
 });
 
 })();