TaskScheduler: Remove base/task_scheduler/utils.h/.cc

base/task_scheduler/utils.h

-// Copyright 2016 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 BASE_TASK_SCHEDULER_UTILS_H_
-#define BASE_TASK_SCHEDULER_UTILS_H_
-
-#include <memory>
-
-#include "base/base_export.h"
-#include "base/memory/ref_counted.h"
-#include "base/task_scheduler/sequence.h"
-#include "base/task_scheduler/task.h"
-
-namespace base {
-namespace internal {
-
-class DelayedTaskManager;
-class PriorityQueue;
-class SchedulerTaskExecutor;
-class TaskTracker;
-
-// Attempts to post |task| to the provided |sequence| and |executor| conditional
-// on |task_tracker|. If |task| has a delayed run time, it is handled by
-// |delayed_task_manager|. Returns true if the task is posted.
-bool BASE_EXPORT PostTaskToExecutor(std::unique_ptr<Task> task,
-                                    scoped_refptr<Sequence> sequence,
-                                    SchedulerTaskExecutor* executor,
-                                    TaskTracker* task_tracker,
-                                    DelayedTaskManager* delayed_task_manager);
-
-// Posts |task| to the provided |sequence| and |priority_queue|. This must only
-// be called after |task|'s delayed run time. Returns true if |sequence| was
-// empty before |task| was inserted into it.
-bool BASE_EXPORT
-AddTaskToSequenceAndPriorityQueue(std::unique_ptr<Task> task,
-                                  scoped_refptr<Sequence> sequence,
-                                  PriorityQueue* priority_queue);
-
-}  // namespace internal
-}  // namespace base
-
-#endif  // BASE_TASK_SCHEDULER_UTILS_H_