chromium/components/performance_manager/frame_node_source.h

// 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_FRAME_NODE_SOURCE_H_
#define COMPONENTS_PERFORMANCE_MANAGER_FRAME_NODE_SOURCE_H_

#include "base/functional/callback.h"
#include "base/observer_list_types.h"
#include "content/public/browser/global_routing_id.h"

namespace performance_manager {

class FrameNodeImpl;

// Represents a source of existing frame nodes that lives on the main thread.
// In practice, this is used by the worker watchers as an abstraction over the
// PerformanceManagerTabHelper to make testing easier.
class FrameNodeSource { … };

}  // namespace performance_manager

#endif  // COMPONENTS_PERFORMANCE_MANAGER_FRAME_NODE_SOURCE_H_