Revert 140102 - Remove old PostDelayedTask interfaces that use int ms instead of TimeDelta.

base/threading/sequenced_worker_pool_task_runner.h

-// Copyright (c) 2012 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_THREADING_SEQUENCED_WORKER_POOL_TASK_RUNNER_H_
-#define BASE_THREADING_SEQUENCED_WORKER_POOL_TASK_RUNNER_H_
-#pragma once
-
-#include "base/basictypes.h"
-#include "base/callback_forward.h"
-#include "base/compiler_specific.h"
-#include "base/memory/ref_counted.h"
-#include "base/sequenced_task_runner.h"
-#include "base/threading/sequenced_worker_pool.h"
-#include "base/time.h"
-
-namespace tracked_objects {
-class Location;
-}  // namespace tracked_objects
-
-namespace base {
-
-// A SequencedTaskRunner which posts tasks to a SequencedWorkerPool with a
-// fixed sequence token.
-//
-// Note that this class is RefCountedThreadSafe (inherited from TaskRunner).
-class BASE_EXPORT SequencedWorkerPoolTaskRunner : public SequencedTaskRunner {
- public:
-  SequencedWorkerPoolTaskRunner(const scoped_refptr<SequencedWorkerPool>& pool,
-                                SequencedWorkerPool::SequenceToken token);
-
-  // TaskRunner implementation
-  virtual bool PostDelayedTask(const tracked_objects::Location& from_here,
-                               const Closure& task,
-                               TimeDelta delay) OVERRIDE;
-  virtual bool RunsTasksOnCurrentThread() const OVERRIDE;
-
-  // SequencedTaskRunner implementation
-  virtual bool PostNonNestableDelayedTask(
-      const tracked_objects::Location& from_here,
-      const Closure& task,
-      TimeDelta delay) OVERRIDE;
-
- private:
-  virtual ~SequencedWorkerPoolTaskRunner();
-
-  // Helper function for posting a delayed task. Asserts that the delay is
-  // zero because non-zero delays are not yet supported.
-  bool PostDelayedTaskAssertZeroDelay(
-      const tracked_objects::Location& from_here,
-      const Closure& task,
-      TimeDelta delay);
-
-  const scoped_refptr<SequencedWorkerPool> pool_;
-
-  const SequencedWorkerPool::SequenceToken token_;
-
-  DISALLOW_COPY_AND_ASSIGN(SequencedWorkerPoolTaskRunner);
-};
-
-}  // namespace base
-
-#endif  // BASE_THREADING_SEQUENCED_TASK_RUNNER_IMPL_H_