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|   1 // Copyright 2016 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 ASH_COMMON_WM_ROOT_WINDOW_CONTROLLER_OBSERVER_H_ |  | 
|   6 #define ASH_COMMON_WM_ROOT_WINDOW_CONTROLLER_OBSERVER_H_ |  | 
|   7  |  | 
|   8 #include "ash/ash_export.h" |  | 
|   9  |  | 
|  10 namespace ash { |  | 
|  11  |  | 
|  12 class WmWindow; |  | 
|  13  |  | 
|  14 // TODO(sky): nuke and go back to ShellObserver. |  | 
|  15 class ASH_EXPORT WmRootWindowControllerObserver { |  | 
|  16  public: |  | 
|  17   virtual void OnWorkAreaChanged() {} |  | 
|  18   virtual void OnShelfAlignmentChanged() {} |  | 
|  19  |  | 
|  20  protected: |  | 
|  21   virtual ~WmRootWindowControllerObserver() {} |  | 
|  22 }; |  | 
|  23  |  | 
|  24 }  // namespace ash |  | 
|  25  |  | 
|  26 #endif  // ASH_COMMON_WM_ROOT_WINDOW_CONTROLLER_OBSERVER_H_ |  | 
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