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// 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 COMPONENTS_METRICS_ENTROPY_STATE_PROVIDER_H_
#define COMPONENTS_METRICS_ENTROPY_STATE_PROVIDER_H_
#include "components/metrics/entropy_state.h"
#include "components/metrics/metrics_provider.h"
class PrefService;
namespace metrics {
// EntropyStateProvider adds information about low entropy sources in the system
// profile. This includes |low_entropy_source|, |old_low_entropy_source| and
// |pseudo_low_entropy_source|.
class EntropyStateProvider : public MetricsProvider {
public:
explicit EntropyStateProvider(PrefService* local_state);
~EntropyStateProvider() override;
EntropyStateProvider(const EntropyStateProvider&) = delete;
EntropyStateProvider& operator=(const EntropyStateProvider&) = delete;
// Provides low entropy sources values to system profile in the client's
// report. This function always provides the same low entropy source values
// that are used for randomizing field trials throughout the session.
void ProvideSystemProfileMetrics(
SystemProfileProto* system_profile_proto) override;
private:
EntropyState entropy_state_;
};
} // namespace metrics
#endif // COMPONENTS_METRICS_ENTROPY_STATE_PROVIDER_H_
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