Get mojo_shell building inside chromium checkout.

mojo/shell/task_runners.cc

Index: mojo/shell/task_runners.cc
diff --git a/mojo/shell/task_runners.cc b/mojo/shell/task_runners.cc
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+++ b/mojo/shell/task_runners.cc
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+// 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/shell/task_runners.h"
+
+#include "base/threading/sequenced_worker_pool.h"
+
+namespace mojo {
+namespace shell {
+
+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.Pass();
+}
+
+}  // 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 shell
+}  // namespace mojo