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// Copyright 2017 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_SCHEDULER_MAIN_THREAD_MAIN_THREAD_SCHEDULER_HELPER_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_SCHEDULER_MAIN_THREAD_MAIN_THREAD_SCHEDULER_HELPER_H_
#include "third_party/blink/renderer/platform/scheduler/common/scheduler_helper.h"
#include "third_party/blink/renderer/platform/scheduler/main_thread/main_thread_task_queue.h"
namespace blink {
namespace scheduler {
class MainThreadSchedulerImpl;
// TODO(carlscab): This class is not really needed and should be removed
class PLATFORM_EXPORT MainThreadSchedulerHelper : public SchedulerHelper {
public:
// |sequence_manager| must remain valid until Shutdown() is called or the
// object is destroyed. |main_thread_scheduler| must remain valid for the
// entire lifetime of this object.
MainThreadSchedulerHelper(
base::sequence_manager::SequenceManager* sequence_manager,
MainThreadSchedulerImpl* main_thread_scheduler);
~MainThreadSchedulerHelper() override;
scoped_refptr<MainThreadTaskQueue> NewTaskQueue(
const MainThreadTaskQueue::QueueCreationParams& params);
scoped_refptr<MainThreadTaskQueue> DefaultMainThreadTaskQueue();
scoped_refptr<MainThreadTaskQueue> ControlMainThreadTaskQueue();
scoped_refptr<base::SingleThreadTaskRunner> DeprecatedDefaultTaskRunner();
const scoped_refptr<base::SingleThreadTaskRunner>& DefaultTaskRunner()
override;
const scoped_refptr<base::SingleThreadTaskRunner>& ControlTaskRunner()
override;
protected:
void ShutdownAllQueues() override;
private:
MainThreadSchedulerImpl* main_thread_scheduler_; // NOT OWNED
const scoped_refptr<MainThreadTaskQueue> default_task_queue_;
const scoped_refptr<MainThreadTaskQueue> control_task_queue_;
DISALLOW_COPY_AND_ASSIGN(MainThreadSchedulerHelper);
};
} // namespace scheduler
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_SCHEDULER_MAIN_THREAD_MAIN_THREAD_SCHEDULER_HELPER_H_
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