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// Copyright 2022 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef BASE_CPU_REDUCTION_EXPERIMENT_H_
#define BASE_CPU_REDUCTION_EXPERIMENT_H_
#include "base/base_export.h"
namespace base {
// Returns whether the cpu cycle reduction experiment is running.
// The goal of this experiment is to better understand the relationship between
// total CPU cycles used across the fleet and top-line chrome metrics.
BASE_EXPORT bool IsRunningCpuReductionExperiment();
// Must be called after FeatureList initialization and while chrome is still
// single-threaded.
BASE_EXPORT void InitializeCpuReductionExperiment();
// Returns true if the next sample should be recorded to an histogram
// sub-sampled under the CPU reduction experiment. Returns true randomly for
// ~1/1000 calls when the experiment is enabled, or always returns true when the
// experiment is disabled.
BASE_EXPORT bool ShouldLogHistogramForCpuReductionExperiment();
} // namespace base
#endif // BASE_CPU_REDUCTION_EXPERIMENT_H_