Use a direct include of the message_loop header in remoting/.

remoting/host/win/rdp_client_unittest.cc

 // Copyright (c) 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.
 
 // ATL headers have to go first.
 #include <atlbase.h>
 #include <atlhost.h>
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/guid.h"
-#include "base/message_loop.h"
+#include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/win/scoped_com_initializer.h"
 #include "remoting/base/auto_thread_task_runner.h"
 #include "remoting/host/win/rdp_client.h"
 #include "remoting/host/win/wts_terminal_monitor.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gmock_mutant.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using testing::_;
@@ skipping 138 matching lines @@
 
   rdp_client_.reset(new RdpClient(task_runner_, task_runner_,
                                   SkISize::Make(kDefaultWidth, kDefaultHeight),
                                   terminal_id_, &event_handler_));
   task_runner_ = NULL;
 
   run_loop_.Run();
 }
 
 }  // namespace remoting