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// Copyright 2016 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_SAMPLING_METRICS_PROVIDER_H_
#define COMPONENTS_METRICS_SAMPLING_METRICS_PROVIDER_H_
#include "components/metrics/metrics_provider.h"
namespace metrics {
// Provides metrics related to sampling of metrics reporting clients. In
// particular, the rate at which clients are sampled.
class SamplingMetricsProvider : public MetricsProvider {
public:
// |sampling_rate_per_mille| is the number of clients per 1000 that are in the
// sample.
explicit SamplingMetricsProvider(int sampling_rate_per_mille);
~SamplingMetricsProvider() override = default;
SamplingMetricsProvider(const SamplingMetricsProvider&) = delete;
SamplingMetricsProvider operator=(const SamplingMetricsProvider&) = delete;
private:
// MetricsProvider:
void ProvideStabilityMetrics(
SystemProfileProto* system_profile_proto) override;
int sampling_rate_per_mille_;
};
} // namespace metrics
#endif // COMPONENTS_METRICS_SAMPLING_METRICS_PROVIDER_H_
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