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// Copyright 2015 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.
#ifndef CHROME_BROWSER_ENGAGEMENT_SITE_ENGAGEMENT_METRICS_H_
#define CHROME_BROWSER_ENGAGEMENT_SITE_ENGAGEMENT_METRICS_H_
#include <map>
#include "base/gtest_prod_util.h"
#include "url/gurl.h"
// Helper class managing the UMA histograms for the Site Engagement Service.
class SiteEngagementMetrics {
public:
// This is used to back a UMA histogram, so it should be treated as
// append-only. Any new values should be inserted immediately prior to
// ENGAGEMENT_LAST.
enum EngagementType {
ENGAGEMENT_NAVIGATION,
ENGAGEMENT_KEYPRESS,
ENGAGEMENT_MOUSE,
ENGAGEMENT_TOUCH_GESTURE,
ENGAGEMENT_WHEEL,
ENGAGEMENT_MEDIA_HIDDEN,
ENGAGEMENT_MEDIA_VISIBLE,
ENGAGEMENT_LAST,
};
static void RecordTotalSiteEngagement(double total_engagement);
static void RecordTotalOriginsEngaged(int total_origins);
static void RecordMeanEngagement(double mean_engagement);
static void RecordMedianEngagement(double median_engagement);
static void RecordEngagementScores(std::map<GURL, double> score_map);
static void RecordOriginsWithMaxEngagement(int total_origins);
static void RecordOriginsWithMaxDailyEngagement(int total_origins);
static void RecordPercentOriginsWithMaxEngagement(double percentage);
static void RecordEngagement(EngagementType type);
private:
FRIEND_TEST_ALL_PREFIXES(SiteEngagementServiceTest, CheckHistograms);
FRIEND_TEST_ALL_PREFIXES(SiteEngagementHelperTest,
MixedInputEngagementAccumulation);
static const char kTotalEngagementHistogram[];
static const char kTotalOriginsHistogram[];
static const char kMeanEngagementHistogram[];
static const char kMedianEngagementHistogram[];
static const char kEngagementScoreHistogram[];
static const char kOriginsWithMaxEngagementHistogram[];
static const char kOriginsWithMaxDailyEngagementHistogram[];
static const char kPercentOriginsWithMaxEngagementHistogram[];
static const char kEngagementTypeHistogram[];
};
#endif // CHROME_BROWSER_ENGAGEMENT_SITE_ENGAGEMENT_METRICS_H_
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