Change base/file_utils.h includes to base/files/file_utils.h in chrome/

chrome/browser/media_galleries/mac/mtp_device_delegate_impl_mac_unittest.mm

 // 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.
 
 #import <Foundation/Foundation.h>
 #import <ImageCaptureCore/ImageCaptureCore.h>
 
-#include "base/file_util.h"
 #include "base/files/file.h"
+#include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/mac/cocoa_protocols.h"
 #include "base/mac/foundation_util.h"
 #include "base/mac/scoped_nsobject.h"
 #include "base/mac/sdk_forward_declarations.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/strings/sys_string_conversions.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/test/sequenced_worker_pool_owner.h"
@@ skipping 523 matching lines @@
                          temp_dir_.path().Append("target")));
 
   EXPECT_EQ(base::File::FILE_OK,
             DownloadFile(base::FilePath("/ic:id/filename"),
                          temp_dir_.path().Append("target")));
   std::string contents;
   EXPECT_TRUE(base::ReadFileToString(temp_dir_.path().Append("target"),
                                      &contents));
   EXPECT_EQ(kTestFileContents, contents);
 }