chromium/components/metrics/delegating_provider.h

// 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.

#ifndef COMPONENTS_METRICS_DELEGATING_PROVIDER_H_
#define COMPONENTS_METRICS_DELEGATING_PROVIDER_H_

#include <memory>
#include <vector>

#include "components/metrics/metrics_provider.h"

namespace metrics {

// A MetricsProvider which manages a set of other MetricsProviders.
// Calls to this providers methods are forwarded to all of the registered
// metrics providers, allowing the group to be handled as a single provider.
class DelegatingProvider final : public MetricsProvider { … };

}  // namespace metrics

#endif  // COMPONENTS_METRICS_DELEGATING_PROVIDER_H_