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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_EMBEDDER_PERFORMANCE_MANAGER_LIFETIME_H_
#define COMPONENTS_PERFORMANCE_MANAGER_EMBEDDER_PERFORMANCE_MANAGER_LIFETIME_H_
#include <memory>
#include "base/functional/callback_forward.h"
#include "components/performance_manager/embedder/performance_manager_registry.h"
#include "components/performance_manager/public/performance_manager.h"
namespace performance_manager {
class Graph;
class GraphFeatures;
using GraphCreatedCallback = base::OnceCallback<void(Graph*)>;
// A helper class that manages the lifetime of PerformanceManager
// and PerformanceManagerRegistry.
class PerformanceManagerLifetime {
public:
PerformanceManagerLifetime(const GraphFeatures&, GraphCreatedCallback);
~PerformanceManagerLifetime();
// Allows specifying an additional callback that will be invoked in tests.
static void SetAdditionalGraphCreatedCallbackForTesting(
GraphCreatedCallback graph_created_callback);
// Sets an override for the features enabled in testing. These will be used
// instead of the features passed to the PerformanceManagerLifetime
// constructor in tests. Individual tests can enable more features by
// creating another GraphFeatures object and calling its ConfigureGraph
// method.
//
// This needs to be set before any PerformanceManagerLifetime is created. In
// browser tests this occurs as part of Chrome browser main parts.
static void SetGraphFeaturesOverrideForTesting(const GraphFeatures&);
private:
std::unique_ptr<PerformanceManager> performance_manager_;
std::unique_ptr<PerformanceManagerRegistry> performance_manager_registry_;
};
// Unregisters |instance| and arranges for its deletion on its sequence.
void DestroyPerformanceManager(std::unique_ptr<PerformanceManager> instance);
} // namespace performance_manager
#endif // COMPONENTS_PERFORMANCE_MANAGER_EMBEDDER_PERFORMANCE_MANAGER_LIFETIME_H_
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