chromium/components/language/core/browser/ulp_metrics_logger.h

// Copyright 2021 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_LANGUAGE_CORE_BROWSER_ULP_METRICS_LOGGER_H_
#define COMPONENTS_LANGUAGE_CORE_BROWSER_ULP_METRICS_LOGGER_H_

#include <string>
#include <vector>

namespace language {

const char kInitiationLanguageCountHistogram[] = …;
const char kInitiationUILanguageInULPHistogram[] = …;
const char kInitiationTranslateTargetInULPHistogram[] = …;
const char kInitiationTopAcceptLanguageInULPHistogram[] = …;
const char kInitiationAcceptLanguagesULPOverlapHistogram[] = …;
const char kInitiationNeverLanguagesMissingFromULP[] = …;
const char kInitiationNeverLanguagesMissingFromULPCount[] = …;
const char kInitiationAcceptLanguagesPageLanguageOverlapHistogram[] = …;
const char kInitiationPageLanguagesMissingFromULPHistogram[] = …;
const char kInitiationPageLanguagesMissingFromULPCountHistogram[] = …;

// Keep up to date with ULPLanguageStatus in
// //tools/metrics/histograms/enums.xml.
enum class ULPLanguageStatus { … };

// ULPMetricsLogger abstracts the UMA histograms populated by the User Language
// Profile (ULP) integration.
class ULPMetricsLogger { … };

}  // namespace language

#endif  // COMPONENTS_LANGUAGE_CORE_BROWSER_ULP_METRICS_LOGGER_H_