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

chromeos/dbus/shill_client_unittest_base.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 CHROMEOS_DBUS_SHILL_CLIENT_UNITTEST_BASE_H_
 #define CHROMEOS_DBUS_SHILL_CLIENT_UNITTEST_BASE_H_
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
-#include "base/message_loop.h"
+#include "base/message_loop/message_loop.h"
 #include "chromeos/dbus/dbus_method_call_status.h"
 #include "chromeos/dbus/shill_client_helper.h"
 #include "chromeos/dbus/shill_property_changed_observer.h"
 #include "dbus/mock_bus.h"
 #include "dbus/mock_object_proxy.h"
 #include "dbus/object_proxy.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using ::testing::MatcherInterface;
 using ::testing::MatchResultListener;
@@ skipping 206 matching lines @@
   std::string expected_method_name_;
   // The response which the mock object proxy returns.
   dbus::Response* response_;
   // A callback to intercept and check the method call arguments.
   ArgumentCheckCallback argument_checker_;
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_DBUS_SHILL_CLIENT_UNITTEST_BASE_H_