[sync] Divorce python sync test server chromiumsync.py from testserver.py

sync/tools/testserver/xmppserver_test.py

 #!/usr/bin/env python
-# Copyright (c) 2011 The Chromium Authors. All rights reserved.
+# Copyright 2013 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.
 
 """Tests exercising the various classes in xmppserver.py."""
 
 import unittest
 
 import base64
 import xmppserver
 
@@ skipping 399 matching lines @@
     self.xmpp_server.SendNotification('channel', 'data')
     self.AssertSentDataLength(2)
 
     self.xmpp_server.EnableNotifications()
     self.xmpp_server.SendNotification('channel', 'data')
     self.AssertSentDataLength(3)
 
 
 if __name__ == '__main__':
   unittest.main()