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

chrome/browser/extensions/api/file_handlers/mime_util_unittest.cc

 // Copyright 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/browser/extensions/api/file_handlers/mime_util.h"
 
 #include <string>
 #include <vector>
 
-#include "base/file_util.h"
 #include "base/files/file_path.h"
+#include "base/files/file_util.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/run_loop.h"
 #include "chrome/test/base/testing_profile.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/test/test_browser_thread_bundle.h"
 #include "content/public/test/test_file_system_context.h"
 #include "content/public/test/test_utils.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace extensions {
@@ skipping 117 matching lines @@
   content::RunAllBlockingPoolTasksUntilIdle();
 
   ASSERT_EQ(3u, result.size());
   EXPECT_EQ("image/jpeg", result[0]);
   EXPECT_EQ("image/jpeg", result[1]);
   EXPECT_EQ("text/html", result[2]);
 }
 
 }  // namespace app_file_handler_util
 }  // namespace extensions