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

chrome/test/chromedriver/net/sync_websocket_impl_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 <string>
 
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
-#include "base/message_loop.h"
+#include "base/message_loop/message_loop.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/single_thread_task_runner.h"
 #include "base/threading/platform_thread.h"
 #include "base/threading/thread.h"
 #include "base/time/time.h"
 #include "chrome/test/chromedriver/net/sync_websocket_impl.h"
 #include "chrome/test/chromedriver/net/test_http_server.h"
 #include "chrome/test/chromedriver/net/url_request_context_getter.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "url/gurl.h"
@@ skipping 136 matching lines @@
   ASSERT_TRUE(sock.Connect(server_.web_socket_url()));
   ASSERT_FALSE(sock.HasNextMessage());
   ASSERT_TRUE(sock.Send("3"));
   std::string message;
   ASSERT_EQ(
       SyncWebSocket::kOk,
       sock.ReceiveNextMessage(&message, long_timeout_));
   ASSERT_STREQ("3", message.c_str());
   ASSERT_FALSE(sock.HasNextMessage());
 }