Use a direct include of the message_loop header in net/, part 2.

net/socket/client_socket_pool_base_unittest.cc

 // 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.
 
 #include "net/socket/client_socket_pool_base.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_vector.h"
 #include "base/memory/weak_ptr.h"
-#include "base/message_loop.h"
+#include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
+#include "base/strings/string_number_conversions.h"
 #include "base/strings/stringprintf.h"
-#include "base/strings/string_number_conversions.h"
 #include "base/threading/platform_thread.h"
 #include "base/values.h"
 #include "net/base/load_timing_info.h"
 #include "net/base/load_timing_info_test_util.h"
 #include "net/base/net_errors.h"
 #include "net/base/net_log.h"
 #include "net/base/net_log_unittest.h"
 #include "net/base/request_priority.h"
 #include "net/base/test_completion_callback.h"
 #include "net/http/http_response_headers.h"
@@ skipping 3981 matching lines @@
   EXPECT_EQ(1, GetOrderOfRequest(5));
   EXPECT_EQ(2, GetOrderOfRequest(3));
   EXPECT_EQ(3, GetOrderOfRequest(4));
   EXPECT_EQ(4, GetOrderOfRequest(1));
   EXPECT_EQ(5, GetOrderOfRequest(2));
 }
 
 }  // namespace
 
 }  // namespace net