Add support for directory access to the file system API.

apps/app_restore_service_browsertest.cc

Index: apps/app_restore_service_browsertest.cc
diff --git a/apps/app_restore_service_browsertest.cc b/apps/app_restore_service_browsertest.cc
index cdde2677e212d8b2478e286371449210f985fd43..d6cc728c1bdbcfb014c1dcc99f987922ce84bcda 100644
--- a/apps/app_restore_service_browsertest.cc
+++ b/apps/app_restore_service_browsertest.cc
@@ -136,7 +136,8 @@ IN_PROC_BROWSER_TEST_F(PlatformAppBrowserTest, MAYBE_FileAccessIsRestored) {
   extension_prefs->SetExtensionRunning(extension->id(), true);
   for (std::vector<SavedFileEntry>::const_iterator it = file_entries.begin();
        it != file_entries.end(); ++it) {
-    saved_files_service->RegisterFileEntry(extension->id(), it->id, it->path);
+    saved_files_service->RegisterFileEntry(
+        extension->id(), it->id, it->path, it->is_directory);
   }
 
   apps::AppRestoreServiceFactory::GetForProfile(browser()->profile())->