scheduler: Move the Blink scheduler into Blink

content/utility/webthread_impl_for_utility_thread.cc

-// 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.
-
-#include "content/utility/webthread_impl_for_utility_thread.h"
-
-#include "base/threading/thread_task_runner_handle.h"
-
-namespace content {
-
-WebThreadImplForUtilityThread::WebThreadImplForUtilityThread()
-    : task_runner_(base::ThreadTaskRunnerHandle::Get()),
-      thread_id_(base::PlatformThread::CurrentId()) {
-}
-
-WebThreadImplForUtilityThread::~WebThreadImplForUtilityThread() {
-}
-
-blink::WebScheduler* WebThreadImplForUtilityThread::scheduler() const {
-  NOTIMPLEMENTED();
-  return nullptr;
-}
-
-blink::PlatformThreadId WebThreadImplForUtilityThread::threadId() const {
-  return thread_id_;
-}
-
-base::SingleThreadTaskRunner* WebThreadImplForUtilityThread::GetTaskRunner()
-    const {
-  return task_runner_.get();
-}
-
-scheduler::SingleThreadIdleTaskRunner*
-WebThreadImplForUtilityThread::GetIdleTaskRunner() const {
-  NOTIMPLEMENTED();
-  return nullptr;
-}
-
-}  // namespace content