file_manager: Move non-binding code to c/b/chromeos/file_manager

chrome/browser/chromeos/file_manager/mime_util.h

 // 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.
 //
 // This file provides MIME related utilities.
 
-#ifndef CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_MANAGER_MIME_UTIL_H_
-#define CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_MANAGER_MIME_UTIL_H_
+#ifndef CHROME_BROWSER_CHROMEOS_FILE_MANAGER_MIME_UTIL_H_
+#define CHROME_BROWSER_CHROMEOS_FILE_MANAGER_MIME_UTIL_H_
 
 #include <string>
 
 #include "chrome/browser/extensions/api/file_handlers/app_file_handler_util.h"
 #include "url/gurl.h"
 
 namespace base {
 class FilePath;
 }
 
 namespace file_manager {
 namespace util {
 
 // Returns the MIME type of |file_path|. Returns "" if the MIME type is
 // unknown.
 std::string GetMimeTypeForPath(const base::FilePath& file_path);
 
 }  // namespace util
 }  // namespace file_manager
 
-#endif  // CHROME_BROWSER_CHROMEOS_EXTENSIONS_FILE_MANAGER_MIME_UTIL_H_
+#endif  // CHROME_BROWSER_CHROMEOS_FILE_MANAGER_MIME_UTIL_H_