chromium/chrome/browser/page_load_metrics/observers/core/ukm_page_load_metrics_observer.h

// Copyright 2017 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_CORE_UKM_PAGE_LOAD_METRICS_OBSERVER_H_
#define CHROME_BROWSER_PAGE_LOAD_METRICS_OBSERVERS_CORE_UKM_PAGE_LOAD_METRICS_OBSERVER_H_

#include <optional>

#include "base/memory/raw_ptr.h"
#include "base/memory/weak_ptr.h"
#include "base/time/time.h"
#include "base/trace_event/typed_macros.h"
#include "components/page_load_metrics/browser/navigation_handle_user_data.h"
#include "components/page_load_metrics/browser/page_load_metrics_observer.h"
#include "content/public/browser/navigation_handle_timing.h"
#include "content/public/browser/site_instance_process_assignment.h"
#include "net/base/load_timing_info.h"
#include "net/http/http_connection_info.h"
#include "net/nqe/effective_connection_type.h"
#include "services/metrics/public/cpp/ukm_source.h"
#include "third_party/perfetto/include/perfetto/tracing/event_context.h"
#include "ui/base/page_transition_types.h"

namespace content {
class BrowserContext;
}

namespace network {
class NetworkQualityTracker;
}

namespace ukm {
namespace builders {
class PageLoad;
}
}  // namespace ukm

// If URL-Keyed-Metrics (UKM) is enabled in the system, this is used to
// populate it with top-level page-load metrics.
class UkmPageLoadMetricsObserver
    : public page_load_metrics::PageLoadMetricsObserver { … };

#endif  // CHROME_BROWSER_PAGE_LOAD_METRICS_OBSERVERS_CORE_UKM_PAGE_LOAD_METRICS_OBSERVER_H_