RecordDelta        41 base/metrics/histogram_delta_serialization.h   virtual void RecordDelta(const HistogramBase& histogram,
RecordDelta        24 base/metrics/histogram_flattener.h   virtual void RecordDelta(const HistogramBase& histogram,
RecordDelta        97 base/metrics/histogram_snapshot_manager.cc     histogram_flattener_->RecordDelta(histogram, *to_log);
RecordDelta        24 chrome/common/metrics/metrics_service_base.h   virtual void RecordDelta(const base::HistogramBase& histogram,