// Copyright 2017 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 COMPONENTS_METRICS_ENVIRONMENT_RECORDER_H_ #define COMPONENTS_METRICS_ENVIRONMENT_RECORDER_H_ #include #include "base/memory/raw_ptr.h" class PrefService; class PrefRegistrySimple; namespace metrics { class SystemProfileProto; // Stores system profile information to prefs for creating stability logs // in the next launch of chrome, and reads data from previous launches. class EnvironmentRecorder { public: explicit EnvironmentRecorder(PrefService* local_state); EnvironmentRecorder(const EnvironmentRecorder&) = delete; EnvironmentRecorder& operator=(const EnvironmentRecorder&) = delete; ~EnvironmentRecorder(); // Serializes the system profile and records it in prefs for the next // session. Returns the uncompressed serialized proto for passing to crash // reports, or the empty string if the proto can't be serialized. std::string SerializeAndRecordEnvironmentToPrefs( const SystemProfileProto& system_profile); // Loads the system_profile data stored in a previous chrome session, and // stores it in the |system_profile| object. // Returns true iff a system profile was successfully read. bool LoadEnvironmentFromPrefs(SystemProfileProto* system_profile); // Deletes system profile data from prefs. void ClearEnvironmentFromPrefs(); // Stores the buildtime of the current binary and version in prefs. void SetBuildtimeAndVersion(int64_t buildtime, const std::string& version); // Gets the buildtime stored in prefs. int64_t GetLastBuildtime(); // Gets the version stored in prefs. std::string GetLastVersion(); static void RegisterPrefs(PrefRegistrySimple* registry); private: raw_ptr local_state_; }; } // namespace metrics #endif // COMPONENTS_METRICS_ENVIRONMENT_RECORDER_H_