// Copyright 2020 The Chromium Authors // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #ifndef CHROME_BROWSER_UPGRADE_DETECTOR_BUILD_STATE_H_ #define CHROME_BROWSER_UPGRADE_DETECTOR_BUILD_STATE_H_ #include <optional> #include "base/observer_list.h" #include "base/sequence_checker.h" #include "base/version.h" class BuildStateObserver; // The state of the browser or device build. This class is not thread safe -- // all access must take place on the UI thread. class BuildState { … }; #endif // CHROME_BROWSER_UPGRADE_DETECTOR_BUILD_STATE_H_