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content / public / browser / responsiveness_calculator_delegate.h [blame]
// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_PUBLIC_BROWSER_RESPONSIVENESS_CALCULATOR_DELEGATE_H_
#define CONTENT_PUBLIC_BROWSER_RESPONSIVENESS_CALCULATOR_DELEGATE_H_
#include "content/common/content_export.h"
namespace content {
// Allows the embedder to be notified when the responsiveness metric
// (Browser.MainThreadsCongestion) is emitted.
class CONTENT_EXPORT ResponsivenessCalculatorDelegate {
public:
// Invoked whenever a measurement interval ended, which includes when the
// application is suspended and the current interval should be discarded.
virtual void OnMeasurementIntervalEnded() = 0;
// Invoked when a sample is emitted to the responsiveness histogram.
virtual void OnResponsivenessEmitted(int num_congested_slices,
int min,
int exclusive_max,
size_t buckets) = 0;
virtual ~ResponsivenessCalculatorDelegate() = default;
};
} // namespace content
#endif // CONTENT_PUBLIC_BROWSER_RESPONSIVENESS_CALCULATOR_DELEGATE_H_