Do not call stat() when reading directories via File API.

storage/common/fileapi/directory_entry.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.
 
 #ifndef STORAGE_COMMON_FILEAPI_DIRECTORY_ENTRY_H_
 #define STORAGE_COMMON_FILEAPI_DIRECTORY_ENTRY_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/files/file_path.h"
 #include "base/time/time.h"
 #include "storage/common/storage_common_export.h"
 
 namespace storage {
 
 // Holds metadata for file or directory entry.
 struct STORAGE_COMMON_EXPORT DirectoryEntry {
   enum DirectoryEntryType {
     FILE,
     DIRECTORY,
   };
 
   DirectoryEntry();
-  DirectoryEntry(const std::string& name,
-                 DirectoryEntryType type,
-                 int64 size,
-                 const base::Time& last_modified_time);
+  DirectoryEntry(const std::string& name, DirectoryEntryType type);
 
   base::FilePath::StringType name;
   bool is_directory;
-  int64 size;
-  base::Time last_modified_time;
 };
 
 }  // namespace storage
 
 #endif  // STORAGE_COMMON_FILEAPI_DIRECTORY_ENTRY_H_