third_party/WebKit/Source/platform/Histogram.cpp

// 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 "platform/Histogram.h"

#include "base/metrics/histogram.h"
#include "base/metrics/sparse_histogram.h"

namespace blink {

CustomCountHistogram::CustomCountHistogram(const char* name,
                                           base::HistogramBase::Sample min,
                                           base::HistogramBase::Sample max,
                                           int32_t bucketCount) {
  m_histogram = base::Histogram::FactoryGet(
      name, min, max, bucketCount,
      base::HistogramBase::kUmaTargetedHistogramFlag);
}

CustomCountHistogram::CustomCountHistogram(base::HistogramBase* histogram)
    : m_histogram(histogram) {}

void CustomCountHistogram::count(base::HistogramBase::Sample sample) {
  m_histogram->Add(sample);
}

BooleanHistogram::BooleanHistogram(const char* name)
    : CustomCountHistogram(base::BooleanHistogram::FactoryGet(
          name,
          base::HistogramBase::kUmaTargetedHistogramFlag)) {}

EnumerationHistogram::EnumerationHistogram(
    const char* name,
    base::HistogramBase::Sample boundaryValue)
    : CustomCountHistogram(base::LinearHistogram::FactoryGet(
          name,
          1,
          boundaryValue,
          boundaryValue + 1,
          base::HistogramBase::kUmaTargetedHistogramFlag)) {}

SparseHistogram::SparseHistogram(const char* name) {
  m_histogram = base::SparseHistogram::FactoryGet(
      name, base::HistogramBase::kUmaTargetedHistogramFlag);
}

void SparseHistogram::sample(base::HistogramBase::Sample sample) {
  m_histogram->Add(sample);
}

}  // namespace blink