Implement the Request/Response bits of Background Fetch

third_party/WebKit/Source/modules/background_fetch/BackgroundFetchSettledRequest.cpp

+// Copyright 2017 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 "modules/background_fetch/BackgroundFetchSettledRequest.h"
+
+#include "modules/fetch/Response.h"
+
+namespace blink {
+
+BackgroundFetchSettledRequest::BackgroundFetchSettledRequest(Request* request,
+                                                             Response* response)
+    : BackgroundFetchRequest(request), m_response(response) {}
+
+Response* BackgroundFetchSettledRequest::response() const {
+  return m_response;
+}
+
+DEFINE_TRACE(BackgroundFetchSettledRequest) {
+  visitor->trace(m_response);
+  BackgroundFetchRequest::trace(visitor);
+}
+
+}  // namespace blink