| // Copyright 2016 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. |
| |
| #include "components/metrics/sampling_metrics_provider.h" |
| |
| #include "base/metrics/histogram_base.h" |
| #include "base/metrics/sparse_histogram.h" |
| #include "components/metrics/metrics_provider.h" |
| |
| namespace metrics { |
| |
| SamplingMetricsProvider::SamplingMetricsProvider(int sampling_rate_per_mille) |
| : sampling_rate_per_mille_(sampling_rate_per_mille) {} |
| |
| void SamplingMetricsProvider::ProvideStabilityMetrics( |
| SystemProfileProto* system_profile_proto) { |
| base::HistogramBase* histogram = base::SparseHistogram::FactoryGet( |
| "UMA.SamplingRatePerMille", |
| base::HistogramBase::kUmaStabilityHistogramFlag); |
| histogram->Add(sampling_rate_per_mille_); |
| } |
| |
| } // namespace metrics |
