Move mojo/runner to mojo/shell/standalone

mojo/runner/task_runners.cc

-// Copyright 2013 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 "mojo/runner/task_runners.h"
-
-#include <stddef.h>
-
-#include "base/threading/sequenced_worker_pool.h"
-
-namespace mojo {
-namespace runner {
-
-namespace {
-
-const size_t kMaxBlockingPoolThreads = 3;
-
-scoped_ptr<base::Thread> CreateIOThread(const char* name) {
-  scoped_ptr<base::Thread> thread(new base::Thread(name));
-  base::Thread::Options options;
-  options.message_loop_type = base::MessageLoop::TYPE_IO;
-  thread->StartWithOptions(options);
-  return thread;
-}
-
-}  // namespace
-
-TaskRunners::TaskRunners(
-    const scoped_refptr<base::SingleThreadTaskRunner>& shell_runner)
-    : shell_runner_(shell_runner),
-      io_thread_(CreateIOThread("io_thread")),
-      blocking_pool_(new base::SequencedWorkerPool(kMaxBlockingPoolThreads,
-                                                   "blocking_pool")) {
-}
-
-TaskRunners::~TaskRunners() {
-  blocking_pool_->Shutdown();
-}
-
-}  // namespace runner
-}  // namespace mojo