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

base/win/object_watcher_unittest.cc

 // Copyright (c) 2011 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 "base/win/object_watcher.h"
 
 #include <process.h>
 
-#include "base/message_loop.h"
+#include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace base {
 namespace win {
 
 namespace {
 
 class QuitDelegate : public ObjectWatcher::Delegate {
  public:
@@ skipping 145 matching lines @@
 }
 
 TEST(ObjectWatcherTest, OutlivesMessageLoop) {
   RunTest_OutlivesMessageLoop(MessageLoop::TYPE_DEFAULT);
   RunTest_OutlivesMessageLoop(MessageLoop::TYPE_IO);
   RunTest_OutlivesMessageLoop(MessageLoop::TYPE_UI);
 }
 
 }  // namespace win
 }  // namespace base