* Revert "Por rt flush_cache tool."

base/file_util_mac.mm

 // 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.
 
 #include "base/file_util.h"
 
 #import <Cocoa/Cocoa.h>
 #include <copyfile.h>
 
 #include "base/file_path.h"
@@ skipping 10 matching lines @@
     return false;
   *path = FilePath([tmp fileSystemRepresentation]);
   return true;
 }
 
 bool CopyFile(const FilePath& from_path, const FilePath& to_path) {
   return (copyfile(from_path.value().c_str(),
                    to_path.value().c_str(), NULL, COPYFILE_ALL) == 0);
 }
 
-bool EvictFileFromSystemCache(const FilePath path) {
-  // TODO(port): Implement.
-  NOTIMPLEMENTED();
-  return false;
-}
-
 }  // namespace