ServiceWorker: Implement ServiceWorkerRegistration [1/3]

public/platform/WebServiceWorkerRegistration.h

+// Copyright 2014 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 WebServiceWorkerRegistration_h
+#define WebServiceWorkerRegistration_h
+
+#include "public/platform/WebURL.h"
+
+namespace blink {
+
+class WebServiceWorkerRegistration {
+public:
+    virtual ~WebServiceWorkerRegistration() { }
+
+    virtual WebURL scope() const { return WebURL(); }
+};
+
+} // namespace blink
+
+#endif // WebServiceWorkerRegistration_h