Add an option to specify requested fields for fetching metadata.

content/public/test/async_file_test_helper.cc

 // Copyright 2014 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 "base/bind.h"
 #include "base/files/file_util.h"
 #include "base/files/scoped_temp_dir.h"
 #include "base/run_loop.h"
 #include "content/public/test/async_file_test_helper.h"
 #include "storage/browser/fileapi/file_system_backend.h"
@@ skipping 198 matching lines @@
   return result;
 }
 
 base::File::Error AsyncFileTestHelper::GetMetadata(
     storage::FileSystemContext* context,
     const storage::FileSystemURL& url,
     base::File::Info* file_info) {
   base::File::Error result = base::File::FILE_ERROR_FAILED;
   base::RunLoop run_loop;
   context->operation_runner()->GetMetadata(
-      url, base::Bind(&GetMetadataCallback, &run_loop, &result,
-                      file_info));
+      url, storage::FileSystemOperation::GET_METADATA_FIELD_IS_DIRECTORY |
+               storage::FileSystemOperation::GET_METADATA_FIELD_SIZE |
+               storage::FileSystemOperation::GET_METADATA_FIELD_LAST_MODIFIED,
+      base::Bind(&GetMetadataCallback, &run_loop, &result, file_info));
   run_loop.Run();
   return result;
 }
 
 base::File::Error AsyncFileTestHelper::GetPlatformPath(
     storage::FileSystemContext* context,
     const storage::FileSystemURL& url,
     base::FilePath* platform_path) {
   base::File::Error result = base::File::FILE_ERROR_FAILED;
   base::RunLoop run_loop;
@@ skipping 30 matching lines @@
   storage::QuotaStatusCode status = storage::kQuotaStatusUnknown;
   quota_manager->GetUsageAndQuota(
       origin,
       FileSystemTypeToQuotaStorageType(type),
       base::Bind(&DidGetUsageAndQuota, &status, usage, quota));
   base::RunLoop().RunUntilIdle();
   return status;
 }
 
 }  // namespace storage