| // Copyright (c) 2012 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 CHROME_BROWSER_COMMAND_OBSERVER_H_ |
| #define CHROME_BROWSER_COMMAND_OBSERVER_H_ |
| |
| // An Observer interface implemented by objects that want to be informed when |
| // the state of a particular command ID is modified. See CommandUpdater. |
| class CommandObserver { |
| public: |
| // Notifies the observer that the enabled state has changed for the |
| // specified command id. |
| virtual void EnabledStateChangedForCommand(int id, bool enabled) = 0; |
| |
| protected: |
| virtual ~CommandObserver() {} |
| }; |
| |
| #endif // CHROME_BROWSER_COMMAND_OBSERVER_H_ |
