components/sync/engine/events/protocol_event_observer.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 COMPONENTS_SYNC_ENGINE_EVENTS_PROTOCOL_EVENT_OBSERVER_H_
#define COMPONENTS_SYNC_ENGINE_EVENTS_PROTOCOL_EVENT_OBSERVER_H_

#include "base/observer_list_types.h"

namespace syncer {

class ProtocolEvent;

class ProtocolEventObserver : public base::CheckedObserver {
 public:
  ProtocolEventObserver() = default;
  ~ProtocolEventObserver() override = default;

  virtual void OnProtocolEvent(const ProtocolEvent& event) = 0;
};

}  // namespace syncer

#endif  // COMPONENTS_SYNC_ENGINE_EVENTS_PROTOCOL_EVENT_OBSERVER_H_