Use a direct include of the message_loop header in chrome/test/, chrome/tools/, chrome/utility/.

chrome/test/chromedriver/net/test_http_server.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.
 
 #include "chrome/test/chromedriver/net/test_http_server.h"
 
 #include "base/bind.h"
 #include "base/location.h"
-#include "base/message_loop.h"
+#include "base/message_loop/message_loop.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/strings/stringprintf.h"
 #include "base/time/time.h"
 #include "net/base/ip_endpoint.h"
 #include "net/base/net_errors.h"
 #include "net/server/http_server_request_info.h"
 #include "net/socket/tcp_listen_socket.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 TestHttpServer::TestHttpServer()
@@ skipping 123 matching lines @@
   }
   *success = server_.get();
   event->Signal();
 }
 
 void TestHttpServer::StopOnServerThread(base::WaitableEvent* event) {
   if (server_.get())
     server_ = NULL;
   event->Signal();
 }