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// Copyright 2016 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.
#ifndef UI_AURA_MUS_FOCUS_SYNCHRONIZER_DELEGATE_H_
#define UI_AURA_MUS_FOCUS_SYNCHRONIZER_DELEGATE_H_
#include <stdint.h>
#include "ui/aura/aura_export.h"
namespace aura {
class WindowMus;
// Used by FocusSynchronizer to create a change id when focus changes. The
// change id is then sent to ui::mojom::WindowTree.
class AURA_EXPORT FocusSynchronizerDelegate {
public:
virtual uint32_t CreateChangeIdForFocus(WindowMus* window) = 0;
protected:
virtual ~FocusSynchronizerDelegate() {}
};
} // namespace aura
#endif // UI_AURA_MUS_FOCUS_SYNCHRONIZER_DELEGATE_H_