compositor-worker: Introduce CompositorWorker.

Source/modules/compositorworker/CompositorWorkerMessagingProxy.cpp

+// 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 "config.h"
+#include "modules/compositorworker/CompositorWorkerMessagingProxy.h"
+
+#include "core/workers/WorkerThreadStartupData.h"
+#include "modules/compositorworker/CompositorWorkerThread.h"
+
+namespace blink {
+
+CompositorWorkerMessagingProxy::CompositorWorkerMessagingProxy(Worker* worker, PassOwnPtrWillBeRawPtr<WorkerClients> workerClients)
+    : WorkerMessagingProxy(worker, workerClients)
+{
+}
+
+CompositorWorkerMessagingProxy::~CompositorWorkerMessagingProxy()
+{
+}
+
+PassRefPtr<WorkerThread> CompositorWorkerMessagingProxy::createWorkerThread(double originTime, PassOwnPtrWillBeRawPtr<WorkerThreadStartupData> startupData)
+{
+    return CompositorWorkerThread::create(loaderProxy(), workerObjectProxy(), originTime, startupData);
+}
+
+} // namespace blink