network service: Create URLLoader for service worker navigation case

content/browser/loader/navigation_factory_creation_data.cc

+// 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 "content/browser/loader/navigation_factory_creation_data.h"
+
+namespace content {
+
+NavigationFactoryCreationData::NavigationFactoryCreationData()
+    : request(),

[kinuko, 2017/05/01 02:06:24]

nit: I don't think we need these empty ctors here

+      navigation_handle(nullptr),
+      resource_context(nullptr),
+      web_contents_getter(),
+      resource_type(),
+      is_parent_frame_secure(false) {}
+
+NavigationFactoryCreationData::~NavigationFactoryCreationData() {}
+
+}  // namespace content