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// Copyright 2015 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 COMPONENTS_SCHEDULER_CHILD_SCHEDULER_TQM_DELEGATE_H_
#define COMPONENTS_SCHEDULER_CHILD_SCHEDULER_TQM_DELEGATE_H_
#include "base/macros.h"
#include "base/message_loop/message_loop.h"
#include "components/scheduler/base/task_queue_manager_delegate.h"
#include "components/scheduler/scheduler_export.h"
namespace scheduler {
class SCHEDULER_EXPORT SchedulerTqmDelegate : public TaskQueueManagerDelegate {
public:
SchedulerTqmDelegate() {}
// If the underlying task runner supports the concept of a default task
// runner, the delegate should implement this function to redirect that task
// runner to the scheduler.
virtual void SetDefaultTaskRunner(
scoped_refptr<base::SingleThreadTaskRunner> task_runner) = 0;
// Similarly this method can be used to restore the original task runner when
// the scheduler no longer wants to intercept tasks.
virtual void RestoreDefaultTaskRunner() = 0;
protected:
~SchedulerTqmDelegate() override {}
DISALLOW_COPY_AND_ASSIGN(SchedulerTqmDelegate);
};
} // namespace scheduler
#endif // COMPONENTS_SCHEDULER_CHILD_SCHEDULER_TQM_DELEGATE_H_
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