Remaining cleanup (base::Bind): Replacing FileUtilProxy calls with new callback

webkit/fileapi/file_system_file_util.h

 // Copyright (c) 2011 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.
 
 #ifndef WEBKIT_FILEAPI_FILE_SYSTEM_FILE_UTIL_H_
 #define WEBKIT_FILEAPI_FILE_SYSTEM_FILE_UTIL_H_
 
 #include "base/file_path.h"
 #include "base/file_util_proxy.h"
 #include "base/platform_file.h"
 
 namespace base {
 class Time;
 }
 
 namespace fileapi {
 
 using base::PlatformFile;
 using base::PlatformFileError;
 class FileSystemOperationContext;
 
 // A large part of this implementation is taken from base::FileUtilProxy.
-// TODO(dmikurube, kinuko): Clean up base::FileUtilProxy to factor out common
-// routines. It includes dropping FileAPI-specific routines from FileUtilProxy.
+// TODO(kinuko): Rewrite or replace this entire class with PostTaskAndReply.
 //
 // The default implementations of the virtual methods below (*1) assume the
 // given paths are native ones for the host platform.  The subclasses that
 // perform local path translation/obfuscation must override them.
 //  (*1) All virtual methods which receive FilePath as their arguments:
 //  CreateOrOpen, EnsureFileExists, GetLocalFilePath, GetFileInfo,
 //  ReadDirectory, CreateDirectory, CopyOrMoveFile, DeleteFile,
 //  DeleteSingleDirectory, Touch, Truncate, PathExists, DirectoryExists,
 //  IsDirectoryEmpty and CreateFileEnumerator.
 //
@@ skipping 250 matching lines @@
 
  private:
   scoped_ptr<FileSystemFileUtil> underlying_file_util_;
 
   DISALLOW_COPY_AND_ASSIGN(FileSystemFileUtil);
 };
 
 }  // namespace fileapi
 
 #endif  // WEBKIT_FILEAPI_FILE_SYSTEM_FILE_UTIL_H_