First step to port file_util::CountFilesCreatedAfter()....

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_
 
 #include "build/build_config.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 #elif defined(OS_POSIX)
 #include <fts.h>
 #include <sys/stat.h>
 #endif
 
 #include <stdio.h>
 
 #include <stack>
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/scoped_ptr.h"
 #include "base/file_path.h"
 
+namespace base {
+class Time;
+}
+
 namespace file_util {
 
 //-----------------------------------------------------------------------------
 // Functions that operate purely on a path string w/o touching the filesystem:
 
 // Returns a vector of all of the components of the provided path.
 void PathComponents(const FilePath& path,
                     std::vector<FilePath::StringType>* components);
 #if defined(OS_WIN)
 // Deprecated temporary compatibility function.
@@ skipping 88 matching lines @@
 // Example:
 //   file_name == "bad:file*name?.txt", changed to: "bad-file-name-.txt" when
 //   'replace_char' is '-'.
 void ReplaceIllegalCharacters(std::wstring* file_name, int replace_char);
 
 //-----------------------------------------------------------------------------
 // Functions that involve filesystem access or modification:
 
 #if defined(OS_WIN)
 // Returns the number of files matching the current path that were
-// created on or after the given FILETIME.  Doesn't count ".." or ".".
-// Filetime is UTC filetime, not LocalFiletime.
-int CountFilesCreatedAfter(const std::wstring& path,
-                           const FILETIME& file_time);
+// created on or after the given |file_time|.  Doesn't count ".." or ".".
+int CountFilesCreatedAfter(const FilePath& path,
+                           const base::Time& file_time);
 #endif  // defined(OS_WIN)
 
 // Deletes the given path, whether it's a file or a directory.
 // If it's a directory, it's perfectly happy to delete all of the
 // directory's contents.  Passing true to recursive deletes
 // subdirectories and their contents as well.
 // Returns true if successful, false otherwise.
 //
 // WARNING: USING THIS WITH recursive==true IS EQUIVALENT
 //          TO "rm -rf", SO USE WITH CAUTION.
@@ skipping 353 matching lines @@
 
 // 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 FilePath& source_file_path,
     const FilePath& target_file_path);
 
 }  // namespace file_util
 
 #endif  // BASE_FILE_UTIL_H_