Implement FetchEvent.navigationPreload

third_party/WebKit/public/platform/modules/serviceworker/WebServiceWorkerPreloadResponseCallbacks.h

+// Copyright 2016 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 WebServiceWorkerPreloadResponseCallbacks_h
+#define WebServiceWorkerPreloadResponseCallbacks_h
+
+#include "public/platform/WebCallbacks.h"
+#include "public/platform/WebURL.h"
+#include "public/platform/modules/serviceworker/WebServiceWorkerError.h"
+
+namespace blink {
+
+class WebDataConsumerHandle;
+class WebServiceWorkerResponse;
+
+struct WebServiceWorkerPreloadResponseCallbacksResult {
+  std::unique_ptr<WebServiceWorkerResponse> response;
+  std::unique_ptr<WebDataConsumerHandle> handle;
+};
+
+using WebServiceWorkerPreloadResponseCallbacks =
+    WebCallbacks<WebServiceWorkerPreloadResponseCallbacksResult*,
+                 WebServiceWorkerError>;
+
+}  // namespace blink
+
+#endif  // WebServiceWorkerPreloadResponseCallbacks_h