| // Copyright 2019 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_METRICS_INCOGNITO_OBSERVER_H_ |
| #define CHROME_BROWSER_METRICS_INCOGNITO_OBSERVER_H_ |
| |
| #include "base/callback.h" |
| |
| // Encapsulates platform-specific functionality for observing events that may |
| // cause "is incognito active?" state to change. The class takes a closure that |
| // will be called when an event happens that could result in a state change. |
| // The incognito state should then be checked by the callback. |
| // TODO(asvitkine): Considering moving the check for incognito to this class |
| // too; see ChromeMetricsServicesManagerClient::IsIncognitoSessionActive(). |
| class IncognitoObserver { |
| public: |
| static std::unique_ptr<IncognitoObserver> Create( |
| const base::RepeatingClosure& update_closure); |
| |
| virtual ~IncognitoObserver(); |
| |
| protected: |
| IncognitoObserver(); |
| |
| DISALLOW_COPY_AND_ASSIGN(IncognitoObserver); |
| }; |
| |
| #endif // CHROME_BROWSER_METRICS_INCOGNITO_OBSERVER_H_ |