chromium/chrome/browser/sync_file_system/drive_backend/metadata_database_index_interface.h

// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_METADATA_DATABASE_INDEX_INTERFACE_H_
#define CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_METADATA_DATABASE_INDEX_INTERFACE_H_

#include <stddef.h>
#include <stdint.h>

#include <memory>
#include <string>
#include <vector>

namespace sync_file_system {
namespace drive_backend {

class FileMetadata;
class FileTracker;
class TrackerIDSet;

struct ParentIDAndTitle {};

bool operator==(const ParentIDAndTitle& left, const ParentIDAndTitle& right);
bool operator<(const ParentIDAndTitle& left, const ParentIDAndTitle& right);

// Interface class to maintain indexes of MetadataDatabase.
class MetadataDatabaseIndexInterface {};

}  // namespace drive_backend
}  // namespace sync_file_system

#endif  // CHROME_BROWSER_SYNC_FILE_SYSTEM_DRIVE_BACKEND_METADATA_DATABASE_INDEX_INTERFACE_H_