chromium/components/page_load_metrics/browser/observers/use_counter_page_load_metrics_observer.cc

// 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.

#include "components/page_load_metrics/browser/observers/use_counter_page_load_metrics_observer.h"

#include "base/metrics/histogram_functions.h"
#include "base/rand_util.h"
#include "content/public/browser/navigation_handle.h"
#include "content/public/browser/render_frame_host.h"
#include "services/metrics/public/cpp/ukm_builders.h"
#include "third_party/blink/public/common/user_agent/user_agent_metadata.h"
#include "third_party/blink/public/mojom/use_counter/use_counter_feature.mojom.h"

FeatureType;
UkmFeatureList;
WebFeature;
WebDXFeature;
CSSSampleId;
PermissionsPolicyFeature;

namespace {

// It's always recommended to use the deprecation API in blink. If the feature
// was logged from the browser (or from both blink and the browser) where the
// deprecation API is not available, use this method for the console warning.
// Note that this doesn't generate the deprecation report.
void PossiblyWarnFeatureDeprecation(content::RenderFrameHost* rfh,
                                    WebFeature feature) {}

template <size_t N>
bool TestAndSet(std::bitset<N>& bitset,
                blink::UseCounterFeature::EnumValue value) {}

}  // namespace

UseCounterMetricsRecorder::UseCounterMetricsRecorder(
    bool is_in_fenced_frames_page)
    :{}

UseCounterMetricsRecorder::~UseCounterMetricsRecorder() = default;

void UseCounterMetricsRecorder::AssertNoMetricsRecordedOrDeferred() {}

void UseCounterMetricsRecorder::RecordUkmPageVisits(
    ukm::SourceId ukm_source_id) {}

void UseCounterMetricsRecorder::DisableDeferAndFlush() {}

void UseCounterMetricsRecorder::RecordOrDeferUseCounterFeature(
    content::RenderFrameHost* rfh,
    const blink::UseCounterFeature& feature) {}

void UseCounterMetricsRecorder::RecordOrDeferMainFrameWebFeature(
    content::RenderFrameHost* rfh,
    blink::mojom::WebFeature web_feature) {}

void UseCounterMetricsRecorder::RecordWebFeatures(ukm::SourceId ukm_source_id) {}

void UseCounterMetricsRecorder::RecordWebDXFeatures(
    ukm::SourceId ukm_source_id) {}

const base::flat_map<blink::mojom::WebFeature, blink::mojom::WebDXFeature>&
UseCounterMetricsRecorder::GetWebFeatureToWebDXFeatureMap() {}

const base::flat_map<blink::mojom::CSSSampleId, blink::mojom::WebDXFeature>&
UseCounterMetricsRecorder::GetCSSProperties2WebDXFeatureMap() {}

const base::flat_map<blink::mojom::CSSSampleId, blink::mojom::WebDXFeature>&
UseCounterMetricsRecorder::GetAnimatedCSSProperties2WebDXFeatureMap() {}

UseCounterPageLoadMetricsObserver::UseCounterPageLoadMetricsObserver() =
    default;

UseCounterPageLoadMetricsObserver::~UseCounterPageLoadMetricsObserver() =
    default;

page_load_metrics::PageLoadMetricsObserver::ObservePolicy
UseCounterPageLoadMetricsObserver::OnStart(
    content::NavigationHandle* navigation_handle,
    const GURL& currently_committed_url,
    bool started_in_foreground) {}

page_load_metrics::PageLoadMetricsObserver::ObservePolicy
UseCounterPageLoadMetricsObserver::OnFencedFramesStart(
    content::NavigationHandle* navigation_handle,
    const GURL& currently_committed_url) {}

page_load_metrics::PageLoadMetricsObserver::ObservePolicy
UseCounterPageLoadMetricsObserver::OnPrerenderStart(
    content::NavigationHandle* navigation_handle,
    const GURL& currently_committed_url) {}

page_load_metrics::PageLoadMetricsObserver::ObservePolicy
UseCounterPageLoadMetricsObserver::OnCommit(
    content::NavigationHandle* navigation_handle) {}

void UseCounterPageLoadMetricsObserver::DidActivatePrerenderedPage(
    content::NavigationHandle* navigation_handle) {}

void UseCounterPageLoadMetricsObserver::OnFeaturesUsageObserved(
    content::RenderFrameHost* rfh,
    const std::vector<blink::UseCounterFeature>& features) {}

void UseCounterPageLoadMetricsObserver::OnComplete(
    const page_load_metrics::mojom::PageLoadTiming& timing) {}

void UseCounterPageLoadMetricsObserver::OnFailedProvisionalLoad(
    const page_load_metrics::FailedProvisionalLoadInfo&
        failed_provisional_load_info) {}

page_load_metrics::PageLoadMetricsObserver::ObservePolicy
UseCounterPageLoadMetricsObserver::FlushMetricsOnAppEnterBackground(
    const page_load_metrics::mojom::PageLoadTiming& timing) {}

page_load_metrics::PageLoadMetricsObserver::ObservePolicy
UseCounterPageLoadMetricsObserver::ShouldObserveMimeType(
    const std::string& mime_type) const {}

page_load_metrics::PageLoadMetricsObserver::ObservePolicy
UseCounterPageLoadMetricsObserver::OnEnterBackForwardCache(
    const page_load_metrics::mojom::PageLoadTiming& timing) {}

bool UseCounterPageLoadMetricsObserver::IsInPrerenderingBeforeActivation()
    const {}