Move MessageLoop to base namespace.

remoting/host/register_support_host_request.h

 // Copyright (c) 2012 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.
 
 #ifndef REMOTING_HOST_REGISTER_SUPPORT_HOST_REQUEST_H_
 #define REMOTING_HOST_REGISTER_SUPPORT_HOST_REQUEST_H_
 
 #include <string>
 
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "remoting/base/rsa_key_pair.h"
 #include "remoting/jingle_glue/signal_strategy.h"
 #include "testing/gtest/include/gtest/gtest_prod.h"
 
-class MessageLoop;
-
 namespace buzz {
 class XmlElement;
 }  // namespace buzz
 
 namespace base {
 class TimeDelta;
 }  // namespace base
 
 namespace remoting {
 
@@ skipping 52 matching lines @@
 
   scoped_ptr<IqSender> iq_sender_;
   scoped_ptr<IqRequest> request_;
 
   DISALLOW_COPY_AND_ASSIGN(RegisterSupportHostRequest);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_REGISTER_SUPPORT_HOST_REQUEST_H_