Use a direct include of the message_loop header in chrome/browser/, part 10.

chrome/browser/storage_monitor/media_storage_util_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/file_util.h"
 #include "base/files/scoped_temp_dir.h"
-#include "base/message_loop.h"
+#include "base/message_loop/message_loop.h"
 #include "base/strings/utf_string_conversions.h"
 #include "base/synchronization/waitable_event.h"
 #include "chrome/browser/storage_monitor/media_storage_util.h"
 #include "chrome/browser/storage_monitor/removable_device_constants.h"
 #include "chrome/browser/storage_monitor/storage_monitor.h"
 #include "chrome/browser/storage_monitor/test_storage_monitor.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/test/test_browser_thread.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
@@ skipping 127 matching lines @@
   event.Reset();
   BrowserThread::PostTask(BrowserThread::FILE, FROM_HERE,
                           base::Bind(&MediaStorageUtil::FilterAttachedDevices,
                                      base::Unretained(&devices), signal_event));
   event.Wait();
 
   EXPECT_TRUE(devices.find(kImageCaptureDeviceId) != devices.end());
 }
 
 }  // namespace chrome