66 lines
2.3 KiB
C++
66 lines
2.3 KiB
C++
// Copyright 2017 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef COMPONENTS_METRICS_DELEGATING_PROVIDER_H_
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#define COMPONENTS_METRICS_DELEGATING_PROVIDER_H_
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#include <memory>
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#include <vector>
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#include "components/metrics/metrics_provider.h"
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namespace metrics {
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// A MetricsProvider which manages a set of other MetricsProviders.
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// Calls to this providers methods are forwarded to all of the registered
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// metrics providers, allowing the group to be handled as a single provider.
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class DelegatingProvider final : public MetricsProvider {
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public:
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DelegatingProvider();
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DelegatingProvider(const DelegatingProvider&) = delete;
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DelegatingProvider& operator=(const DelegatingProvider&) = delete;
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~DelegatingProvider() override;
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// Registers an additional MetricsProvider to forward calls to.
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void RegisterMetricsProvider(std::unique_ptr<MetricsProvider> delegate);
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// Gets the list of registered providers.
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const std::vector<std::unique_ptr<MetricsProvider>>& GetProviders();
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// MetricsProvider:
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void Init() override;
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void AsyncInit(base::OnceClosure done_callback) override;
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void OnDidCreateMetricsLog() override;
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void OnRecordingEnabled() override;
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void OnRecordingDisabled() override;
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void OnClientStateCleared() override;
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void OnAppEnterBackground() override;
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bool HasIndependentMetrics() override;
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void ProvideSystemProfileMetrics(
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SystemProfileProto* system_profile_proto) override;
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void ProvideSystemProfileMetricsWithLogCreationTime(
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base::TimeTicks log_creation_time,
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SystemProfileProto* system_profile_proto) override;
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bool HasPreviousSessionData() override;
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void ProvidePreviousSessionData(
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ChromeUserMetricsExtension* uma_proto) override;
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void ProvideCurrentSessionData(
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ChromeUserMetricsExtension* uma_proto) override;
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void ProvideCurrentSessionUKMData() override;
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void ClearSavedStabilityMetrics() override;
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void RecordHistogramSnapshots(
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base::HistogramSnapshotManager* snapshot_manager) override;
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void RecordInitialHistogramSnapshots(
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base::HistogramSnapshotManager* snapshot_manager) override;
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private:
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std::vector<std::unique_ptr<MetricsProvider>> metrics_providers_;
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};
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} // namespace metrics
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#endif // COMPONENTS_METRICS_DELEGATING_PROVIDER_H_
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