// 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_STABILITY_METRICS_PROVIDER_H_ #define COMPONENTS_METRICS_STABILITY_METRICS_PROVIDER_H_ #include "base/memory/raw_ptr.h" #include "base/time/time.h" #include "build/build_config.h" #include "components/metrics/metrics_provider.h" class PrefService; class PrefRegistrySimple; namespace metrics { class SystemProfileProto; // Stores and loads system information to prefs for stability logs. class StabilityMetricsProvider : public MetricsProvider { public: explicit StabilityMetricsProvider(PrefService* local_state); StabilityMetricsProvider(const StabilityMetricsProvider&) = delete; StabilityMetricsProvider& operator=(const StabilityMetricsProvider&) = delete; ~StabilityMetricsProvider() override; static void RegisterPrefs(PrefRegistrySimple* registry); void LogCrash(base::Time last_live_timestamp); void LogLaunch(); private: #if BUILDFLAG(IS_WIN) // This function is virtual for testing. The |last_live_timestamp| is a // time point where the previous browser was known to be alive, and is used // to determine whether the system session embedding that timestamp terminated // uncleanly. virtual bool IsUncleanSystemSession(base::Time last_live_timestamp); void MaybeLogSystemCrash(base::Time last_live_timestamp); #endif // Increments an Integer pref value specified by |path|. void IncrementPrefValue(const char* path); // Gets pref value specified by |path| and resets it to 0 after retrieving. int GetAndClearPrefValue(const char* path, int* value); // MetricsProvider: void Init() override; void ClearSavedStabilityMetrics() override; void ProvideStabilityMetrics( SystemProfileProto* system_profile_proto) override; raw_ptr local_state_; }; } // namespace metrics #endif // COMPONENTS_METRICS_STABILITY_METRICS_PROVIDER_H_