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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_SITE_DATA_WRITER_H_
#define COMPONENTS_PERFORMANCE_MANAGER_PERSISTENCE_SITE_DATA_SITE_DATA_WRITER_H_
#include "base/memory/ref_counted.h"
#include "components/performance_manager/persistence/site_data/site_data_impl.h"
namespace performance_manager {
// This writer is initially in an unloaded state, a |NotifySiteLoaded| event
// should be sent if/when the tab using it gets loaded.
class SiteDataWriter {
public:
SiteDataWriter(const SiteDataWriter&) = delete;
SiteDataWriter& operator=(const SiteDataWriter&) = delete;
virtual ~SiteDataWriter();
// Records tab load/unload events.
virtual void NotifySiteLoaded(TabVisibility visibility);
virtual void NotifySiteUnloaded(TabVisibility visibility);
// Records visibility change events.
virtual void NotifySiteForegrounded(bool is_loaded);
virtual void NotifySiteBackgrounded(bool is_loaded);
// Records feature usage.
virtual void NotifyUpdatesFaviconInBackground();
virtual void NotifyUpdatesTitleInBackground();
virtual void NotifyUsesAudioInBackground();
// Records performance measurements.
virtual void NotifyLoadTimePerformanceMeasurement(
base::TimeDelta load_duration,
base::TimeDelta cpu_usage_estimate,
uint64_t private_footprint_kb_estimate);
virtual const url::Origin& Origin() const;
internal::SiteDataImpl* impl_for_testing() const {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
return impl_.get();
}
protected:
friend class SiteDataWriterTest;
friend class SiteDataCacheImpl;
friend class LenientMockDataWriter;
// Protected constructor, these objects are meant to be created by a site data
// store.
explicit SiteDataWriter(scoped_refptr<internal::SiteDataImpl> impl);
private:
// The SiteDataImpl object we delegate to.
const scoped_refptr<internal::SiteDataImpl> impl_
GUARDED_BY_CONTEXT(sequence_checker_);
SEQUENCE_CHECKER(sequence_checker_);
};
} // namespace performance_manager
#endif // COMPONENTS_PERFORMANCE_MANAGER_PERSISTENCE_SITE_DATA_SITE_DATA_WRITER_H_
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