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

chrome/browser/media_galleries/fileapi/iphoto_file_util.cc

 // 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.
 
 #include "chrome/browser/media_galleries/fileapi/iphoto_file_util.h"
 
 #include <set>
 #include <string>
 #include <vector>
 
@@ skipping 228 matching lines @@
 
 base::File::Error IPhotoFileUtil::ReadDirectorySync(
     storage::FileSystemOperationContext* context,
     const storage::FileSystemURL& url,
     EntryList* file_list) {
   DCHECK(file_list->empty());
   std::vector<std::string> components = GetVirtualPathComponents(url);
 
   // Root directory. Child is the /Albums dir.
   if (components.size() == 0) {
-    file_list->push_back(DirectoryEntry(kIPhotoAlbumsDir,
-                                        DirectoryEntry::DIRECTORY,
-                                        0, base::Time()));
+    file_list->push_back(
+        DirectoryEntry(kIPhotoAlbumsDir, DirectoryEntry::DIRECTORY));
     return base::File::FILE_OK;
   }
 
   if (components[0] == kIPhotoAlbumsDir) {
     if (components.size() == 1) {
       // Albums dir contains all album names.
       std::vector<std::string> albums =
           GetDataProvider()->GetAlbumNames();
       for (std::vector<std::string>::const_iterator it = albums.begin();
            it != albums.end(); it++) {
-        file_list->push_back(DirectoryEntry(*it, DirectoryEntry::DIRECTORY,
-                                            0, base::Time()));
+        file_list->push_back(DirectoryEntry(*it, DirectoryEntry::DIRECTORY));
       }
       return base::File::FILE_OK;
     } else if (components.size() == 2) {
       std::vector<std::string> albums =
           GetDataProvider()->GetAlbumNames();
       if (!ContainsElement(albums, components[1]))
         return base::File::FILE_ERROR_NOT_FOUND;
 
       // Album dirs contain all photos in them.
       if (GetDataProvider()->HasOriginals(components[1])) {
-        file_list->push_back(DirectoryEntry(kIPhotoOriginalsDir,
-                                            DirectoryEntry::DIRECTORY,
-                                            0, base::Time()));
+        file_list->push_back(
+            DirectoryEntry(kIPhotoOriginalsDir, DirectoryEntry::DIRECTORY));
       }
       std::map<std::string, base::FilePath> locations =
           GetDataProvider()->GetAlbumContents(components[1]);
       for (std::map<std::string, base::FilePath>::const_iterator it =
                locations.begin();
            it != locations.end(); it++) {
         base::File::Info info;
         if (!base::GetFileInfo(it->second, &info))
           return base::File::FILE_ERROR_IO;
-        file_list->push_back(DirectoryEntry(it->first, DirectoryEntry::FILE,
-                                            info.size, info.last_modified));
+        file_list->push_back(DirectoryEntry(it->first, DirectoryEntry::FILE));
       }
       return base::File::FILE_OK;
     } else if (components.size() == 3 &&
                components[2] == kIPhotoOriginalsDir &&
                GetDataProvider()->HasOriginals(components[1])) {
       std::map<std::string, base::FilePath> originals =
           GetDataProvider()->GetOriginals(components[1]);
       for (std::map<std::string, base::FilePath>::const_iterator it =
                originals.begin();
            it != originals.end(); it++) {
         base::File::Info info;
         if (!base::GetFileInfo(it->second, &info))
           return base::File::FILE_ERROR_IO;
-        file_list->push_back(DirectoryEntry(it->first, DirectoryEntry::FILE,
-                                            info.size, info.last_modified));
+        file_list->push_back(DirectoryEntry(it->first, DirectoryEntry::FILE));
       }
       return base::File::FILE_OK;
     }
   }
 
   return base::File::FILE_ERROR_NOT_FOUND;
 }
 
 base::File::Error IPhotoFileUtil::DeleteDirectorySync(
     storage::FileSystemOperationContext* context,
@@ skipping 36 matching lines @@
   return base::File::FILE_ERROR_NOT_FOUND;
 }
 
 IPhotoDataProvider* IPhotoFileUtil::GetDataProvider() {
   if (!imported_registry_)
     imported_registry_ = ImportedMediaGalleryRegistry::GetInstance();
   return imported_registry_->IPhotoDataProvider();
 }
 
 }  // namespace iphoto