scheduler: Move the Blink scheduler into Blink

components/scheduler/child/webthread_impl_for_worker_scheduler.h

-// 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_WEBTHREAD_IMPL_FOR_WORKER_SCHEDULER_H_
-#define COMPONENTS_SCHEDULER_CHILD_WEBTHREAD_IMPL_FOR_WORKER_SCHEDULER_H_
-
-#include "base/threading/thread.h"
-#include "components/scheduler/base/task_queue_manager.h"
-#include "components/scheduler/child/webthread_base.h"
-
-namespace base {
-class WaitableEvent;
-};
-
-namespace blink {
-class WebScheduler;
-};
-
-namespace scheduler {
-class SchedulerTqmDelegate;
-class SingleThreadIdleTaskRunner;
-class TaskQueue;
-class WebSchedulerImpl;
-class WebTaskRunnerImpl;
-class WorkerScheduler;
-
-class SCHEDULER_EXPORT WebThreadImplForWorkerScheduler
-    : public WebThreadBase,
-      public base::MessageLoop::DestructionObserver {
- public:
-  explicit WebThreadImplForWorkerScheduler(const char* name);
-  WebThreadImplForWorkerScheduler(const char* name,
-                                  base::Thread::Options options);
-  ~WebThreadImplForWorkerScheduler() override;
-
-  void Init();
-
-  // blink::WebThread implementation.
-  blink::WebScheduler* scheduler() const override;
-  blink::PlatformThreadId threadId() const override;
-  blink::WebTaskRunner* getWebTaskRunner() override;
-
-  // WebThreadBase implementation.
-  base::SingleThreadTaskRunner* GetTaskRunner() const override;
-  scheduler::SingleThreadIdleTaskRunner* GetIdleTaskRunner() const override;
-
-  // base::MessageLoop::DestructionObserver implementation.
-  void WillDestroyCurrentMessageLoop() override;
-
- protected:
-  base::Thread* thread() const { return thread_.get(); }
-
- private:
-  virtual std::unique_ptr<scheduler::WorkerScheduler> CreateWorkerScheduler();
-
-  void AddTaskObserverInternal(
-      base::MessageLoop::TaskObserver* observer) override;
-  void RemoveTaskObserverInternal(
-      base::MessageLoop::TaskObserver* observer) override;
-
-  void InitOnThread(base::WaitableEvent* completion);
-  void RestoreTaskRunnerOnThread(base::WaitableEvent* completion);
-
-  std::unique_ptr<base::Thread> thread_;
-  std::unique_ptr<scheduler::WorkerScheduler> worker_scheduler_;
-  std::unique_ptr<scheduler::WebSchedulerImpl> web_scheduler_;
-  scoped_refptr<base::SingleThreadTaskRunner> thread_task_runner_;
-  scoped_refptr<TaskQueue> task_runner_;
-  scoped_refptr<scheduler::SingleThreadIdleTaskRunner> idle_task_runner_;
-  scoped_refptr<SchedulerTqmDelegate> task_runner_delegate_;
-  std::unique_ptr<WebTaskRunnerImpl> web_task_runner_;
-};
-
-}  // namespace scheduler
-
-#endif  // COMPONENTS_SCHEDULER_CHILD_WEBTHREAD_IMPL_FOR_WORKER_SCHEDULER_H_