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      1 // Copyright 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef UI_BASE_MODELS_COMBOBOX_MODEL_OBSERVER_H_
      6 #define UI_BASE_MODELS_COMBOBOX_MODEL_OBSERVER_H_
      7 
      8 #include "ui/base/ui_base_export.h"
      9 
     10 namespace ui {
     11 
     12 class ComboboxModel;
     13 
     14 // Observer for the ComboboxModel.
     15 class UI_BASE_EXPORT ComboboxModelObserver {
     16  public:
     17   // Invoked when |model| has changed in some way. The observer should assume
     18   // everything changed.
     19   virtual void OnComboboxModelChanged(ComboboxModel* model) = 0;
     20 
     21  protected:
     22   virtual ~ComboboxModelObserver() {}
     23 };
     24 
     25 }  // namespace ui
     26 
     27 #endif  // UI_BASE_MODELS_COMBOBOX_MODEL_OBSERVER_H_
     28