Moving metrics to api/ .

chrome/browser/extensions/extension_metrics_module.cc

-// Copyright (c) 2012 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 "chrome/browser/extensions/extension_metrics_module.h"
-
-#include <algorithm>
-
-#include "base/metrics/histogram.h"
-#include "chrome/common/extensions/extension.h"
-#include "content/public/browser/user_metrics.h"
-
-using base::Histogram;
-using base::LinearHistogram;
-using content::UserMetricsAction;
-
-const size_t kMaxBuckets = 10000; // We don't ever want more than these many
-                                  // buckets; there is no real need for them
-                                  // and would cause crazy memory usage
-
-bool MetricsRecordUserActionFunction::RunImpl() {
-  std::string name;
-  EXTENSION_FUNCTION_VALIDATE(args_->GetString(0, &name));
-
-  content::RecordComputedAction(name);
-  return true;
-}
-
-bool MetricsHistogramHelperFunction::GetNameAndSample(std::string* name,
-                                                      int* sample) {
-  EXTENSION_FUNCTION_VALIDATE(args_->GetString(0, name));
-  EXTENSION_FUNCTION_VALIDATE(args_->GetInteger(1, sample));
-  return true;
-}
-
-bool MetricsHistogramHelperFunction::RecordValue(const std::string& name,
-                                                 Histogram::ClassType type,
-                                                 int min,
-                                                 int max,
-                                                 size_t buckets,
-                                                 int sample) {
-  // Make sure toxic values don't get to internal code.
-  // Fix for maximums
-  min = std::min(min, INT_MAX - 3);
-  max = std::min(max, INT_MAX - 3);
-  buckets = std::min(buckets, kMaxBuckets);
-  // Fix for minimums.
-  min = std::max(min, 1);
-  max = std::max(max, min + 1);
-  buckets = std::max(buckets, static_cast<size_t>(3));
-  // Trim buckets down to a maximum of the given range + over/underflow buckets
-  if (buckets > static_cast<size_t>(max - min + 2))
-    buckets = max - min + 2;
-
-  Histogram* counter;
-  if (type == Histogram::LINEAR_HISTOGRAM) {
-    counter = LinearHistogram::FactoryGet(name,
-                                          min,
-                                          max,
-                                          buckets,
-                                          Histogram::kUmaTargetedHistogramFlag);
-  } else {
-    counter = Histogram::FactoryGet(name,
-                                    min,
-                                    max,
-                                    buckets,
-                                    Histogram::kUmaTargetedHistogramFlag);
-  }
-
-  counter->Add(sample);
-  return true;
-}
-
-bool MetricsRecordValueFunction::RunImpl() {
-  int sample;
-  EXTENSION_FUNCTION_VALIDATE(args_->GetInteger(1, &sample));
-
-  // Get the histogram parameters from the metric type object.
-  DictionaryValue* metric_type;
-  EXTENSION_FUNCTION_VALIDATE(args_->GetDictionary(0, &metric_type));
-
-  std::string name;
-  std::string type;
-  int min;
-  int max;
-  int buckets;
-  EXTENSION_FUNCTION_VALIDATE(metric_type->GetString("metricName", &name));
-  EXTENSION_FUNCTION_VALIDATE(metric_type->GetString("type", &type));
-  EXTENSION_FUNCTION_VALIDATE(metric_type->GetInteger("min", &min));
-  EXTENSION_FUNCTION_VALIDATE(metric_type->GetInteger("max", &max));
-  EXTENSION_FUNCTION_VALIDATE(metric_type->GetInteger("buckets", &buckets));
-
-  Histogram::ClassType histogram_type(type == "histogram-linear" ?
-      Histogram::LINEAR_HISTOGRAM : Histogram::HISTOGRAM);
-  return RecordValue(name, histogram_type, min, max, buckets, sample);
-}
-
-bool MetricsRecordPercentageFunction::RunImpl() {
-  std::string name;
-  int sample;
-  EXTENSION_FUNCTION_VALIDATE(GetNameAndSample(&name, &sample));
-  return RecordValue(name, Histogram::LINEAR_HISTOGRAM, 1, 101, 102, sample);
-}
-
-bool MetricsRecordCountFunction::RunImpl() {
-  std::string name;
-  int sample;
-  EXTENSION_FUNCTION_VALIDATE(GetNameAndSample(&name, &sample));
-  return RecordValue(name, Histogram::HISTOGRAM, 1, 1000000, 50, sample);
-}
-
-bool MetricsRecordSmallCountFunction::RunImpl() {
-  std::string name;
-  int sample;
-  EXTENSION_FUNCTION_VALIDATE(GetNameAndSample(&name, &sample));
-  return RecordValue(name, Histogram::HISTOGRAM, 1, 100, 50, sample);
-}
-
-bool MetricsRecordMediumCountFunction::RunImpl() {
-  std::string name;
-  int sample;
-  EXTENSION_FUNCTION_VALIDATE(GetNameAndSample(&name, &sample));
-  return RecordValue(name, Histogram::HISTOGRAM, 1, 10000, 50, sample);
-}
-
-bool MetricsRecordTimeFunction::RunImpl() {
-  std::string name;
-  int sample;
-  EXTENSION_FUNCTION_VALIDATE(GetNameAndSample(&name, &sample));
-  static const int kTenSecMs = 10 * 1000;
-  return RecordValue(name, Histogram::HISTOGRAM, 1, kTenSecMs, 50, sample);
-}
-
-bool MetricsRecordMediumTimeFunction::RunImpl() {
-  std::string name;
-  int sample;
-  EXTENSION_FUNCTION_VALIDATE(GetNameAndSample(&name, &sample));
-  static const int kThreeMinMs = 3 * 60 * 1000;
-  return RecordValue(name, Histogram::HISTOGRAM, 1, kThreeMinMs, 50, sample);
-}
-
-bool MetricsRecordLongTimeFunction::RunImpl() {
-  std::string name;
-  int sample;
-  EXTENSION_FUNCTION_VALIDATE(GetNameAndSample(&name, &sample));
-  static const int kOneHourMs = 60 * 60 * 1000;
-  return RecordValue(name, Histogram::HISTOGRAM, 1, kOneHourMs, 50, sample);
-}