AddSamples        463 base/metrics/histogram.h   virtual void AddSamples(const HistogramSamples& samples) OVERRIDE;
AddSamples        121 base/metrics/histogram_base.h   virtual void AddSamples(const HistogramSamples& samples) = 0;
AddSamples         72 base/metrics/sparse_histogram.h   virtual void AddSamples(const HistogramSamples& samples) OVERRIDE;