Create the BackgroundFetchBatchManager and initiate a download.

content/browser/background_fetch/fetch_request.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/background_fetch/fetch_request.h"
 
 #include <string>
 
 #include "base/guid.h"
 #include "content/public/browser/download_item.h"
 
 namespace content {
 
 FetchRequest::FetchRequest() = default;
 
-FetchRequest::FetchRequest(const url::Origin& origin,
-                           const GURL& url,
-                           int64_t service_worker_registration_id,
-                           const std::string& tag)
-    : guid_(base::GenerateGUID()),
-      origin_(origin),
-      url_(url),
-      service_worker_registration_id_(service_worker_registration_id),
-      tag_(tag) {}
+FetchRequest::FetchRequest(const GURL& url, const std::string& tag)
+    : guid_(base::GenerateGUID()), url_(url), tag_(tag) {}
 
 FetchRequest::FetchRequest(const FetchRequest& request)
     : guid_(request.guid_),
-      origin_(request.origin_),
       url_(request.url_),
-      service_worker_registration_id_(request.service_worker_registration_id()),
       tag_(request.tag_) {}
 
 FetchRequest::~FetchRequest() = default;
 
 }  // namespace content