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// Copyright 2020 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.
#include "weblayer/browser/ukm_page_load_metrics_observer.h"
#include "build/build_config.h"
#include "components/prerender/browser/prerender_manager.h"
#include "components/prerender/browser/prerender_util.h"
#include "content/public/browser/navigation_handle.h"
#include "content/public/browser/web_contents.h"
#include "services/metrics/public/cpp/ukm_recorder.h"
#include "weblayer/browser/no_state_prefetch/prerender_manager_factory.h"
namespace weblayer {
// static
std::unique_ptr<page_load_metrics::PageLoadMetricsObserver>
UkmPageLoadMetricsObserver::CreateIfNeeded() {
if (!ukm::UkmRecorder::Get()) {
return nullptr;
}
return std::make_unique<UkmPageLoadMetricsObserver>();
}
UkmPageLoadMetricsObserver::ObservePolicy UkmPageLoadMetricsObserver::OnCommit(
content::NavigationHandle* navigation_handle,
ukm::SourceId source_id) {
#if defined(OS_ANDROID)
prerender::PrerenderManager* const prerender_manager =
PrerenderManagerFactory::GetForBrowserContext(
navigation_handle->GetWebContents()->GetBrowserContext());
if (!prerender_manager)
return CONTINUE_OBSERVING;
prerender::RecordNoStatePrefetchMetrics(navigation_handle, source_id,
prerender_manager);
#endif
return CONTINUE_OBSERVING;
}
} // namespace weblayer
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