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// Copyright 2015 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 COMPONENTS_UI_ZOOM_ZOOM_EVENT_MANAGER_OBSERVER_H_
#define COMPONENTS_UI_ZOOM_ZOOM_EVENT_MANAGER_OBSERVER_H_
namespace ui_zoom {
class ZoomEventManagerObserver {
public:
// TODO(wjmaclean): convert existing ZoomLevelChangedCallbacks to be
// observers.
virtual void OnZoomLevelChanged() {}
virtual void OnDefaultZoomLevelChanged() {}
protected:
virtual ~ZoomEventManagerObserver() {}
};
} // namespace ui_zoom
#endif // COMPONENTS_UI_ZOOM_ZOOM_EVENT_MANAGER_OBSERVER_H_
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