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// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/page_load_metrics/page_load_metrics_initialize.h"
#include <memory>
#include <string>
#include <utility>
#include "base/functional/bind.h"
#include "build/build_config.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/heavy_ad_intervention/heavy_ad_service_factory.h"
#include "chrome/browser/history/history_service_factory.h"
#include "chrome/browser/page_load_metrics/observers/bookmark_bar_page_load_metrics_observer.h"
#include "chrome/browser/page_load_metrics/observers/chrome_gws_abandoned_page_load_metrics_observer.h"
#include "chrome/browser/page_load_metrics/observers/chrome_gws_page_load_metrics_observer.h"
#include "chrome/browser/page_load_metrics/observers/core/amp_page_load_metrics_observer.h"
#include "chrome/browser/page_load_metrics/observers/core/ukm_page_load_metrics_observer.h"
#include "chrome/browser/page_load_metrics/observers/document_write_page_load_metrics_observer.h"
#include "chrome/browser/page_load_metrics/observers/foreground_duration_ukm_observer.h"
#include "chrome/browser/page_load_metrics/observers/from_gws_page_load_metrics_observer.h"
#include "chrome/browser/page_load_metrics/observers/gws_hp_page_load_metrics_observer.h"
#include "chrome/browser/page_load_metrics/observers/https_engagement_metrics/https_engagement_page_load_metrics_observer.h"
#include "chrome/browser/page_load_metrics/observers/javascript_frameworks_ukm_observer.h"
#include "chrome/browser/page_load_metrics/observers/lcp_critical_path_predictor_page_load_metrics_observer.h"
#include "chrome/browser/page_load_metrics/observers/loading_predictor_page_load_metrics_observer.h"
#include "chrome/browser/page_load_metrics/observers/local_network_requests_page_load_metrics_observer.h"
#include "chrome/browser/page_load_metrics/observers/multi_tab_loading_page_load_metrics_observer.h"
#include "chrome/browser/page_load_metrics/observers/new_tab_page_initiated_page_load_metrics_observer.h"
#include "chrome/browser/page_load_metrics/observers/new_tab_page_page_load_metrics_observer.h"
#include "chrome/browser/page_load_metrics/observers/omnibox_suggestion_used_page_load_metrics_observer.h"
#include "chrome/browser/page_load_metrics/observers/optimization_guide_page_load_metrics_observer.h"
#include "chrome/browser/page_load_metrics/observers/page_anchors_metrics_observer.h"
#include "chrome/browser/page_load_metrics/observers/prefetch_page_load_metrics_observer.h"
#include "chrome/browser/page_load_metrics/observers/preview_page_load_metrics_observer.h"
#include "chrome/browser/page_load_metrics/observers/protocol_page_load_metrics_observer.h"
#include "chrome/browser/page_load_metrics/observers/scheme_page_load_metrics_observer.h"
#include "chrome/browser/page_load_metrics/observers/security_state_page_load_metrics_observer.h"
#include "chrome/browser/page_load_metrics/observers/service_worker_page_load_metrics_observer.h"
#include "chrome/browser/page_load_metrics/observers/signed_exchange_page_load_metrics_observer.h"
#include "chrome/browser/page_load_metrics/observers/tab_strip_page_load_metrics_observer.h"
#include "chrome/browser/page_load_metrics/observers/third_party_cookie_deprecation_page_load_metrics_observer.h"
#include "chrome/browser/page_load_metrics/observers/translate_page_load_metrics_observer.h"
#include "chrome/browser/page_load_metrics/page_load_metrics_memory_tracker_factory.h"
#include "chrome/browser/preloading/prefetch/no_state_prefetch/chrome_no_state_prefetch_contents_delegate.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/search/search.h"
#include "chrome/common/url_constants.h"
#include "components/no_state_prefetch/browser/no_state_prefetch_contents.h"
#include "components/page_load_metrics/browser/features.h"
#include "components/page_load_metrics/browser/metrics_web_contents_observer.h"
#include "components/page_load_metrics/browser/observers/ad_metrics/ads_page_load_metrics_observer.h"
#include "components/page_load_metrics/browser/observers/third_party_metrics_observer.h"
#include "components/page_load_metrics/browser/observers/zstd_page_load_metrics_observer.h"
#include "components/page_load_metrics/browser/page_load_metrics_embedder_base.h"
#include "components/page_load_metrics/browser/page_load_metrics_memory_tracker.h"
#include "components/page_load_metrics/browser/page_load_tracker.h"
#include "components/page_load_metrics/google/browser/from_gws_abandoned_page_load_metrics_observer.h"
#include "components/page_load_metrics/google/browser/gws_abandoned_page_load_metrics_observer.h"
#include "content/public/browser/web_contents.h"
#include "extensions/buildflags/buildflags.h"
#include "third_party/blink/public/common/loader/lcp_critical_path_predictor_util.h"
#include "url/gurl.h"
#if BUILDFLAG(IS_ANDROID)
#include "chrome/browser/page_load_metrics/observers/android_page_load_metrics_observer.h"
#endif
#if !BUILDFLAG(IS_ANDROID)
#include "chrome/browser/page_load_metrics/observers/non_tab_webui_page_load_metrics_observer.h"
#include "chrome/browser/ui/webui/top_chrome/top_chrome_webui_config.h"
#endif
#if BUILDFLAG(IS_CHROMEOS)
#include "chrome/browser/page_load_metrics/observers/ash_session_restore_page_load_metrics_observer.h"
#endif
#if BUILDFLAG(ENABLE_EXTENSIONS)
#include "extensions/common/constants.h"
#endif
namespace {
#if !BUILDFLAG(IS_ANDROID)
bool IsNonTabWebUI(content::BrowserContext* browser_context, const GURL& url) {
return TopChromeWebUIConfig::From(browser_context, url) != nullptr;
}
std::string_view GetNonTabWebUIName(content::BrowserContext* browser_context,
const GURL& url) {
CHECK(IsNonTabWebUI(browser_context, url));
return TopChromeWebUIConfig::From(browser_context, url)->GetWebUIName();
}
#else
bool IsNonTabWebUI(content::BrowserContext* browser_context, const GURL& url) {
return false;
}
#endif
std::string GetApplicationLocale() {
return g_browser_process->GetApplicationLocale();
}
class PageLoadMetricsEmbedder
: public page_load_metrics::PageLoadMetricsEmbedderBase {
public:
explicit PageLoadMetricsEmbedder(content::WebContents* web_contents);
PageLoadMetricsEmbedder(const PageLoadMetricsEmbedder&) = delete;
PageLoadMetricsEmbedder& operator=(const PageLoadMetricsEmbedder&) = delete;
~PageLoadMetricsEmbedder() override;
// page_load_metrics::PageLoadMetricsEmbedderBase:
bool IsNewTabPageUrl(const GURL& url) override;
bool IsNoStatePrefetch(content::WebContents* web_contents) override;
bool IsExtensionUrl(const GURL& url) override;
bool IsNonTabWebUI(const GURL& url) override;
bool ShouldObserveScheme(std::string_view scheme) override;
bool IsIncognito(content::WebContents* web_contents) override;
page_load_metrics::PageLoadMetricsMemoryTracker*
GetMemoryTrackerForBrowserContext(
content::BrowserContext* browser_context) override;
protected:
// page_load_metrics::PageLoadMetricsEmbedderBase:
void RegisterObservers(page_load_metrics::PageLoadTracker* tracker,
content::NavigationHandle* navigation_handle) override;
};
PageLoadMetricsEmbedder::PageLoadMetricsEmbedder(
content::WebContents* web_contents)
: PageLoadMetricsEmbedderBase(web_contents) {}
PageLoadMetricsEmbedder::~PageLoadMetricsEmbedder() = default;
void PageLoadMetricsEmbedder::RegisterObservers(
page_load_metrics::PageLoadTracker* tracker,
content::NavigationHandle* navigation_handle) {
// Page-specific observers.
//
// Other observers don't get installed because they measure things that
// don't apply to this type of page, rely on invariants that aren't true
// about WebUI chrome pages (such as visibility-related things),
// or because they depend on objects that don't exist for WebUI pages
// (namely `TabHelper`s).
#if !BUILDFLAG(IS_ANDROID)
if (IsNonTabWebUI(navigation_handle->GetURL())) {
// This embedder is for a non-tab chrome:// page.
tracker->AddObserver(std::make_unique<NonTabPageLoadMetricsObserver>(
std::string(GetNonTabWebUIName(web_contents()->GetBrowserContext(),
navigation_handle->GetURL()))));
return;
}
#endif
if (IsNewTabPageUrl(navigation_handle->GetURL())) {
tracker->AddObserver(std::make_unique<NewTabPagePageLoadMetricsObserver>());
return;
}
// Observers for regular web pages.
RegisterCommonObservers(tracker);
if (!IsNoStatePrefetch(web_contents())) {
tracker->AddObserver(std::make_unique<AMPPageLoadMetricsObserver>());
tracker->AddObserver(std::make_unique<JavascriptFrameworksUkmObserver>());
tracker->AddObserver(std::make_unique<SchemePageLoadMetricsObserver>());
tracker->AddObserver(std::make_unique<FromGWSPageLoadMetricsObserver>());
tracker->AddObserver(std::make_unique<ChromeGWSPageLoadMetricsObserver>());
tracker->AddObserver(
std::make_unique<FromGWSAbandonedPageLoadMetricsObserver>());
tracker->AddObserver(std::make_unique<AbandonedPageLoadMetricsObserver>());
tracker->AddObserver(
std::make_unique<ChromeGWSAbandonedPageLoadMetricsObserver>());
tracker->AddObserver(std::make_unique<GWSHpPageLoadMetricsObserver>());
tracker->AddObserver(std::make_unique<ForegroundDurationUKMObserver>());
tracker->AddObserver(
std::make_unique<DocumentWritePageLoadMetricsObserver>());
tracker->AddObserver(std::make_unique<PrefetchPageLoadMetricsObserver>());
tracker->AddObserver(
std::make_unique<MultiTabLoadingPageLoadMetricsObserver>());
tracker->AddObserver(
std::make_unique<OptimizationGuidePageLoadMetricsObserver>());
tracker->AddObserver(
std::make_unique<ServiceWorkerPageLoadMetricsObserver>());
tracker->AddObserver(
std::make_unique<SignedExchangePageLoadMetricsObserver>());
tracker->AddObserver(
std::make_unique<HttpsEngagementPageLoadMetricsObserver>(
web_contents()->GetBrowserContext()));
tracker->AddObserver(std::make_unique<ProtocolPageLoadMetricsObserver>());
bool is_incognito = IsIncognito(tracker->GetWebContents());
std::unique_ptr<page_load_metrics::AdsPageLoadMetricsObserver>
ads_observer =
page_load_metrics::AdsPageLoadMetricsObserver::CreateIfNeeded(
tracker->GetWebContents(),
HeavyAdServiceFactory::GetForBrowserContext(
tracker->GetWebContents()->GetBrowserContext()),
HistoryServiceFactory::GetForProfile(
Profile::FromBrowserContext(
web_contents()->GetBrowserContext()),
ServiceAccessType::EXPLICIT_ACCESS),
base::BindRepeating(&GetApplicationLocale), is_incognito);
if (ads_observer) {
tracker->AddObserver(std::move(ads_observer));
}
tracker->AddObserver(std::make_unique<ThirdPartyMetricsObserver>());
std::unique_ptr<page_load_metrics::PageLoadMetricsObserver> ukm_observer =
UkmPageLoadMetricsObserver::CreateIfNeeded(is_incognito);
if (ukm_observer) {
tracker->AddObserver(std::move(ukm_observer));
}
#if BUILDFLAG(IS_ANDROID)
tracker->AddObserver(std::make_unique<AndroidPageLoadMetricsObserver>());
#endif // BUILDFLAG(IS_ANDROID)
std::unique_ptr<page_load_metrics::PageLoadMetricsObserver>
loading_predictor_observer =
LoadingPredictorPageLoadMetricsObserver::CreateIfNeeded(
web_contents());
if (loading_predictor_observer) {
tracker->AddObserver(std::move(loading_predictor_observer));
}
if (blink::LcppEnabled()) {
tracker->AddObserver(
std::make_unique<LcpCriticalPathPredictorPageLoadMetricsObserver>());
}
tracker->AddObserver(
std::make_unique<LocalNetworkRequestsPageLoadMetricsObserver>());
tracker->AddObserver(
std::make_unique<TabStripPageLoadMetricsObserver>(web_contents()));
tracker->AddObserver(std::make_unique<PreviewPageLoadMetricsObserver>());
tracker->AddObserver(std::make_unique<BookmarkBarMetricsObserver>());
tracker->AddObserver(
std::make_unique<NewTabPageInitiatedPageLoadMetricsObserver>());
tracker->AddObserver(
std::make_unique<ThirdPartyCookieDeprecationMetricsObserver>(
web_contents()->GetBrowserContext()));
}
tracker->AddObserver(
std::make_unique<OmniboxSuggestionUsedMetricsObserver>());
tracker->AddObserver(
SecurityStatePageLoadMetricsObserver::MaybeCreateForProfile(
web_contents()->GetBrowserContext()));
tracker->AddObserver(
std::make_unique<PageAnchorsMetricsObserver>(tracker->GetWebContents()));
std::unique_ptr<TranslatePageLoadMetricsObserver> translate_observer =
TranslatePageLoadMetricsObserver::CreateIfNeeded(
tracker->GetWebContents());
if (translate_observer) {
tracker->AddObserver(std::move(translate_observer));
}
tracker->AddObserver(std::make_unique<ZstdPageLoadMetricsObserver>());
#if BUILDFLAG(IS_CHROMEOS)
if (AshSessionRestorePageLoadMetricsObserver::ShouldBeInstantiated(
Profile::FromBrowserContext(web_contents()->GetBrowserContext()))) {
tracker->AddObserver(
std::make_unique<AshSessionRestorePageLoadMetricsObserver>(
web_contents()));
}
#endif
}
bool PageLoadMetricsEmbedder::IsNewTabPageUrl(const GURL& url) {
Profile* profile =
Profile::FromBrowserContext(web_contents()->GetBrowserContext());
if (!profile) {
return false;
}
return search::IsInstantNTPURL(url, profile);
}
bool PageLoadMetricsEmbedder::IsNoStatePrefetch(
content::WebContents* web_contents) {
return prerender::ChromeNoStatePrefetchContentsDelegate::FromWebContents(
web_contents);
}
bool PageLoadMetricsEmbedder::IsExtensionUrl(const GURL& url) {
#if BUILDFLAG(ENABLE_EXTENSIONS)
return url.SchemeIs(extensions::kExtensionScheme);
#else
return false;
#endif
}
bool PageLoadMetricsEmbedder::IsNonTabWebUI(const GURL& url) {
return ::IsNonTabWebUI(web_contents()->GetBrowserContext(), url);
}
bool PageLoadMetricsEmbedder::ShouldObserveScheme(std::string_view scheme) {
return scheme == chrome::kIsolatedAppScheme;
}
bool PageLoadMetricsEmbedder::IsIncognito(content::WebContents* web_contents) {
if (Profile* profile =
Profile::FromBrowserContext(web_contents->GetBrowserContext())) {
return profile->IsIncognitoProfile();
}
return false;
}
page_load_metrics::PageLoadMetricsMemoryTracker*
PageLoadMetricsEmbedder::GetMemoryTrackerForBrowserContext(
content::BrowserContext* browser_context) {
if (!base::FeatureList::IsEnabled(
page_load_metrics::features::kV8PerFrameMemoryMonitoring)) {
return nullptr;
}
return page_load_metrics::PageLoadMetricsMemoryTrackerFactory::
GetForBrowserContext(browser_context);
}
} // namespace
void InitializePageLoadMetricsForWebContents(
content::WebContents* web_contents) {
// Change this method? consider to modify the peer in
// android_webview/browser/page_load_metrics/page_load_metrics_initialize.cc
// weblayer/browser/page_load_metrics_initialize.cc
// as well.
page_load_metrics::MetricsWebContentsObserver::CreateForWebContents(
web_contents, std::make_unique<PageLoadMetricsEmbedder>(web_contents));
}
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