| // Copyright 2017 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_PAGE_LOAD_METRICS_OBSERVERS_UKM_PAGE_LOAD_METRICS_OBSERVER_H_ |
| #define CHROME_BROWSER_PAGE_LOAD_METRICS_OBSERVERS_UKM_PAGE_LOAD_METRICS_OBSERVER_H_ |
| |
| #include "base/macros.h" |
| #include "base/optional.h" |
| #include "base/time/time.h" |
| #include "chrome/browser/page_load_metrics/page_load_metrics_observer.h" |
| #include "components/ukm/ukm_source.h" |
| #include "ui/base/page_transition_types.h" |
| |
| namespace network { |
| class NetworkQualityTracker; |
| } |
| |
| // 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 { |
| public: |
| // Returns a UkmPageLoadMetricsObserver, or nullptr if it is not needed. |
| static std::unique_ptr<page_load_metrics::PageLoadMetricsObserver> |
| CreateIfNeeded(); |
| |
| explicit UkmPageLoadMetricsObserver( |
| network::NetworkQualityTracker* network_quality_tracker); |
| ~UkmPageLoadMetricsObserver() override; |
| |
| // page_load_metrics::PageLoadMetricsObserver implementation: |
| ObservePolicy OnStart(content::NavigationHandle* navigation_handle, |
| const GURL& currently_committed_url, |
| bool started_in_foreground) override; |
| |
| ObservePolicy OnCommit(content::NavigationHandle* navigation_handle, |
| ukm::SourceId source_id) override; |
| |
| ObservePolicy FlushMetricsOnAppEnterBackground( |
| const page_load_metrics::mojom::PageLoadTiming& timing, |
| const page_load_metrics::PageLoadExtraInfo& info) override; |
| |
| ObservePolicy OnHidden( |
| const page_load_metrics::mojom::PageLoadTiming& timing, |
| const page_load_metrics::PageLoadExtraInfo& info) override; |
| |
| void OnFailedProvisionalLoad( |
| const page_load_metrics::FailedProvisionalLoadInfo& failed_load_info, |
| const page_load_metrics::PageLoadExtraInfo& extra_info) override; |
| |
| void OnComplete(const page_load_metrics::mojom::PageLoadTiming& timing, |
| const page_load_metrics::PageLoadExtraInfo& info) override; |
| |
| void OnLoadedResource(const page_load_metrics::ExtraRequestCompleteInfo& |
| extra_request_complete_info) override; |
| |
| private: |
| // Records page load timing related metrics available in PageLoadTiming, such |
| // as first contentful paint. |
| void RecordTimingMetrics( |
| const page_load_metrics::mojom::PageLoadTiming& timing, |
| ukm::SourceId source_id); |
| |
| // Records metrics based on the PageLoadExtraInfo struct, as well as updating |
| // the URL. |app_background_time| should be set to a timestamp if the app was |
| // backgrounded, otherwise it should be set to a null TimeTicks. |
| void RecordPageLoadExtraInfoMetrics( |
| const page_load_metrics::PageLoadExtraInfo& info, |
| base::TimeTicks app_background_time); |
| |
| // Guaranteed to be non-null during the lifetime of |this|. |
| network::NetworkQualityTracker* network_quality_tracker_; |
| |
| // The number of body (not header) prefilter bytes consumed by requests for |
| // the page. |
| int64_t cache_bytes_ = 0; |
| int64_t network_bytes_ = 0; |
| |
| // Network quality estimates. |
| net::EffectiveConnectionType effective_connection_type_ = |
| net::EFFECTIVE_CONNECTION_TYPE_UNKNOWN; |
| base::Optional<base::TimeDelta> http_rtt_estimate_; |
| base::Optional<base::TimeDelta> transport_rtt_estimate_; |
| base::Optional<int32_t> downstream_kbps_estimate_; |
| |
| // PAGE_TRANSITION_LINK is the default PageTransition value. |
| ui::PageTransition page_transition_ = ui::PAGE_TRANSITION_LINK; |
| |
| DISALLOW_COPY_AND_ASSIGN(UkmPageLoadMetricsObserver); |
| }; |
| |
| #endif // CHROME_BROWSER_PAGE_LOAD_METRICS_OBSERVERS_UKM_PAGE_LOAD_METRICS_OBSERVER_H_ |