Expose WorkerPool to blink

third_party/WebKit/Source/platform/BackgroundTask.h

+// 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.
+
+#ifndef BackgroundTask_h
+#define BackgroundTask_h
+
+#include "platform/PlatformExport.h"
+
+namespace blink {
+
+class PLATFORM_EXPORT BackgroundTask {
+public:
+    enum TaskSize {
+        TaskSizeShortRunningTask,
+        TaskSizeLongRunningTask,
+    };
+
+    static void postOnBackgroundThread(BackgroundTask*, TaskSize);
+
+    virtual ~BackgroundTask();
+    virtual void run() = 0;
+};
+
+} // blink
+
+#endif