Revert of services/ui: Revert CLs that broke Windows.

services/ui/public/cpp/lib/raster_thread_helper.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 "services/ui/public/cpp/raster_thread_helper.h"
+
+#include "base/logging.h"
+#include "base/threading/simple_thread.h"
+#include "cc/raster/single_thread_task_graph_runner.h"
+
+namespace ui {
+
+RasterThreadHelper::RasterThreadHelper()
+    : task_graph_runner_(new cc::SingleThreadTaskGraphRunner) {
+  task_graph_runner_->Start("CompositorTileWorker1",
+                            base::SimpleThread::Options());
+}
+
+RasterThreadHelper::~RasterThreadHelper() {
+  task_graph_runner_->Shutdown();
+}
+
+cc::TaskGraphRunner* RasterThreadHelper::task_graph_runner() {
+  return task_graph_runner_.get();
+}
+
+}  // namespace ui