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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_PERFORMANCE_MANAGER_PERSISTENCE_SITE_DATA_NOOP_SITE_DATA_WRITER_H_
#define COMPONENTS_PERFORMANCE_MANAGER_PERSISTENCE_SITE_DATA_NOOP_SITE_DATA_WRITER_H_
#include "components/performance_manager/persistence/site_data/site_data_writer.h"
#include "url/origin.h"
namespace performance_manager {
// Specialization of a SiteDataWriter that doesn't record anything.
class NoopSiteDataWriter : public SiteDataWriter {
public:
NoopSiteDataWriter(const NoopSiteDataWriter&) = delete;
NoopSiteDataWriter& operator=(const NoopSiteDataWriter&) = delete;
~NoopSiteDataWriter() override;
// Implementation of SiteDataWriter:
void NotifySiteLoaded(TabVisibility visibility) override;
void NotifySiteUnloaded(TabVisibility visibility) override;
void NotifySiteForegrounded(bool is_loaded) override;
void NotifySiteBackgrounded(bool is_loaded) override;
void NotifyUpdatesFaviconInBackground() override;
void NotifyUpdatesTitleInBackground() override;
void NotifyUsesAudioInBackground() override;
void NotifyLoadTimePerformanceMeasurement(
base::TimeDelta load_duration,
base::TimeDelta cpu_usage_estimate,
uint64_t private_footprint_kb_estimate) override;
const url::Origin& Origin() const override;
private:
friend class NonRecordingSiteDataCache;
// Private constructor, these objects are meant to be created by a
// NonRecordingSiteDataCache.
NoopSiteDataWriter();
};
} // namespace performance_manager
#endif // COMPONENTS_PERFORMANCE_MANAGER_PERSISTENCE_SITE_DATA_NOOP_SITE_DATA_WRITER_H_
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