Start to implement FetchEvent for ServiceWorker

Source/web/WebServiceWorkerFetchResponse.cpp

+// 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.
+
+#include "config.h"
+#include "WebServiceWorkerFetchResponse.h"
+
+#include "modules/serviceworkers/Response.h"
+
+namespace blink {
+
+WebServiceWorkerFetchResponse::~WebServiceWorkerFetchResponse()
+{
+    m_private.reset();
+}
+
+unsigned short WebServiceWorkerFetchResponse::statusCode() const
+{
+    return m_private->statusCode();
+}
+
+WebString WebServiceWorkerFetchResponse::statusText() const
+{
+    return m_private->statusText();
+}
+
+WebString WebServiceWorkerFetchResponse::method() const
+{
+    return m_private->method();
+}
+
+WebServiceWorkerFetchResponse::WebServiceWorkerFetchResponse(Type type)
+    : m_type(type)
+{
+}
+
+WebServiceWorkerFetchResponse::WebServiceWorkerFetchResponse(const WTF::PassRefPtr<WebCore::Response>& response)
+    : m_type(Response)
+    , m_private(response)
+{
+}
+
+} // namespace blink