chromium/components/sync/engine/forwarding_data_type_processor.h

// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef COMPONENTS_SYNC_ENGINE_FORWARDING_DATA_TYPE_PROCESSOR_H_
#define COMPONENTS_SYNC_ENGINE_FORWARDING_DATA_TYPE_PROCESSOR_H_

#include <memory>
#include <vector>

#include "base/memory/raw_ptr.h"
#include "components/sync/engine/data_type_processor.h"

namespace syncer {

// Trivial implementation of DataTypeProcessor, that simply forwards
// call to another processor. This is useful when an API requires transferring
// ownership, but the calling site also wants to keep ownership of the actual
// implementation, and can guarantee the lifetime constraints.
class ForwardingDataTypeProcessor : public DataTypeProcessor { … };

}  // namespace syncer

#endif  // COMPONENTS_SYNC_ENGINE_FORWARDING_DATA_TYPE_PROCESSOR_H_