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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_ZOOM_ZOOM_EVENT_MANAGER_OBSERVER_H_
- #define COMPONENTS_ZOOM_ZOOM_EVENT_MANAGER_OBSERVER_H_
- namespace zoom {
- class ZoomEventManagerObserver {
- public:
- // TODO(wjmaclean): convert existing ZoomLevelChangedCallbacks to be
- // observers.
- virtual void OnZoomLevelChanged() {}
- virtual void OnDefaultZoomLevelChanged() {}
- protected:
- virtual ~ZoomEventManagerObserver() {}
- };
- } // namespace zoom
- #endif // COMPONENTS_ZOOM_ZOOM_EVENT_MANAGER_OBSERVER_H_
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