chromium/components/security_interstitials/core/metrics_helper.h

// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef COMPONENTS_SECURITY_INTERSTITIALS_CORE_METRICS_HELPER_H_
#define COMPONENTS_SECURITY_INTERSTITIALS_CORE_METRICS_HELPER_H_

#include <optional>
#include <string>

#include "base/task/cancelable_task_tracker.h"
#include "base/time/time.h"
#include "url/gurl.h"

namespace history {
class HistoryService;
struct VisibleVisitCountToHostResult;
}

namespace security_interstitials {

// MetricsHelper records user warning interactions in a common way via METRICS
// histograms. The class will generate the following histograms:
//   METRICS: interstitial.<metric_prefix>.decision[.repeat_visit]
//   METRICS: interstitial.<metric_prefix>.interaction[.repeat_visit]
// wherein |metric_prefix| is specified via ReportDetails.
// repeat_visit is also generated if the user has seen the page before.
//
// If |extra_suffix| is not empty, MetricsHelper will append ".<extra_suffix>"
// to generate an additional 2 or 4 more metrics.
class MetricsHelper { … };

}  // namespace security_interstitials

#endif  // COMPONENTS_SECURITY_INTERSTITIALS_CORE_METRICS_HELPER_H_