| // Copyright 2018 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 ASH_WALLPAPER_WALLPAPER_UTILS_WALLPAPER_COLOR_CALCULATOR_OBSERVER_H_ |
| #define ASH_WALLPAPER_WALLPAPER_UTILS_WALLPAPER_COLOR_CALCULATOR_OBSERVER_H_ |
| |
| namespace ash { |
| |
| // Observer for the WallpaperColorCalculator. |
| class WallpaperColorCalculatorObserver { |
| public: |
| // Notified when a color calculation completes. |
| virtual void OnColorCalculationComplete() = 0; |
| |
| protected: |
| virtual ~WallpaperColorCalculatorObserver() {} |
| }; |
| |
| } // namespace ash |
| |
| #endif // ASH_WALLPAPER_WALLPAPER_UTILS_WALLPAPER_COLOR_CALCULATOR_OBSERVER_H_ |