chromium/chrome/browser/page_load_metrics/observers/service_worker_page_load_metrics_observer.h

// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CHROME_BROWSER_PAGE_LOAD_METRICS_OBSERVERS_SERVICE_WORKER_PAGE_LOAD_METRICS_OBSERVER_H_
#define CHROME_BROWSER_PAGE_LOAD_METRICS_OBSERVERS_SERVICE_WORKER_PAGE_LOAD_METRICS_OBSERVER_H_

#include "components/page_load_metrics/browser/page_load_metrics_observer.h"
#include "services/metrics/public/cpp/ukm_source.h"

namespace internal {

// Expose metrics for tests.
extern const char kHistogramServiceWorkerParseStart[];
extern const char kBackgroundHistogramServiceWorkerParseStart[];
extern const char kHistogramServiceWorkerParseStartForwardBack[];
extern const char kHistogramServiceWorkerParseStartForwardBackNoStore[];
extern const char kHistogramServiceWorkerFirstPaint[];
extern const char kHistogramServiceWorkerFirstContentfulPaint[];
extern const char kBackgroundHistogramServiceWorkerFirstContentfulPaint[];
extern const char kHistogramServiceWorkerFirstContentfulPaintForwardBack[];
extern const char
    kHistogramServiceWorkerFirstContentfulPaintForwardBackNoStore[];
extern const char
    kHistogramServiceWorkerFirstContentfulPaintSkippableFetchHandler[];
extern const char
    kHistogramServiceWorkerFirstContentfulPaintNonSkippableFetchHandler[];
extern const char kHistogramServiceWorkerParseStartToFirstContentfulPaint[];
extern const char kHistogramServiceWorkerDomContentLoaded[];
extern const char kHistogramServiceWorkerLoad[];
extern const char kHistogramServiceWorkerLargestContentfulPaint[];
extern const char
    kHistogramServiceWorkerLargestContentfulPaintSkippableFetchHandler[];
extern const char
    kHistogramServiceWorkerLargestContentfulPaintNonSkippableFetchHandler[];
extern const char kHistogramServiceWorkerParseStartSearch[];
extern const char kHistogramServiceWorkerFirstContentfulPaintSearch[];
extern const char
    kHistogramServiceWorkerParseStartToFirstContentfulPaintSearch[];
extern const char kHistogramServiceWorkerDomContentLoadedSearch[];
extern const char kHistogramServiceWorkerLoadSearch[];

extern const char kHistogramNoServiceWorkerFirstContentfulPaintSearch[];
extern const char
    kHistogramNoServiceWorkerParseStartToFirstContentfulPaintSearch[];
extern const char kHistogramNoServiceWorkerDomContentLoadedSearch[];
extern const char kHistogramNoServiceWorkerLoadSearch[];

extern const char kHistogramServiceWorkerFirstContentfulPaintDocs[];
extern const char kHistogramNoServiceWorkerFirstContentfulPaintDocs[];

extern const char kHistogramServiceWorkerSubresourceTotalRouterEvaluationTime[];

}  // namespace internal

class ServiceWorkerPageLoadMetricsObserver
    : public page_load_metrics::PageLoadMetricsObserver { … };

#endif  // CHROME_BROWSER_PAGE_LOAD_METRICS_OBSERVERS_SERVICE_WORKER_PAGE_LOAD_METRICS_OBSERVER_H_