Expose WorkerPool to blink

third_party/WebKit/Source/platform/BackgroundTask.cpp

Index: third_party/WebKit/Source/platform/BackgroundTask.cpp
diff --git a/third_party/WebKit/Source/platform/BackgroundTask.cpp b/third_party/WebKit/Source/platform/BackgroundTask.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..8d74d0feca281a194c18696be6d56df82f0aff50
--- /dev/null
+++ b/third_party/WebKit/Source/platform/BackgroundTask.cpp
@@ -0,0 +1,23 @@
+// 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 "platform/BackgroundTask.h"
+
+#include "base/bind.h"
+#include "base/location.h"
+#include "base/threading/worker_pool.h"
+#include "public/platform/Platform.h"
+
+namespace blink {
+
+BackgroundTask::~BackgroundTask()
+{ }
+
+void BackgroundTask::postOnBackgroundThread(BackgroundTask* task, TaskSize taskSize)
+{
+    base::WorkerPool::PostTask(FROM_HERE, base::Bind(&BackgroundTask::run, base::Owned(task)), taskSize == TaskSizeLongRunningTask);
+}
+
+} // namespace blink