* Revert "Por rt flush_cache tool."

base/file_util.h

 // Copyright (c) 2006-2008 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 contains utility functions for dealing with the local
 // filesystem.
 
 #ifndef BASE_FILE_UTIL_H_
 #define BASE_FILE_UTIL_H_
 
@@ skipping 371 matching lines @@
 
   DISALLOW_EVIL_CONSTRUCTORS(FileEnumerator);
 };
 
 // Renames a file using the SHFileOperation API to ensure that the target file
 // gets the correct default security descriptor in the new path.
 bool RenameFileAndResetSecurityDescriptor(
     const std::wstring& source_file_path,
     const std::wstring& target_file_path);
 
-// Clear a specific file from the system cache. After this call, trying
-// to access this file will result in a cold load from the hard drive.
-bool EvictFileFromSystemCache(const FilePath path);
-
 }  // namespace file_util
 
 #endif  // BASE_FILE_UTIL_H_