Start to implement FetchEvent for ServiceWorker

Source/modules/serviceworkers/ResponseInit.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 ResponseInit_h
+#define ResponseInit_h
+
+#include "bindings/v8/Dictionary.h"
+
+namespace WebCore {
+
+struct ResponseInit {
+    explicit ResponseInit(const Dictionary& options)
+        : statusCode(200)
+        , statusText("OK")
+    {
+        options.get("statusCode", statusCode);
+        options.get("statusTest", statusText);
+        options.get("method", method);
+        options.get("headers", headers);
+    }
+
+    unsigned short statusCode;
+    String statusText;
+    String method;
+    Dictionary headers;
+};
+
+}
+
+#endif // ResponseInit_h