Create the BackgroundFetchBatchManager and initiate a download.

content/browser/background_fetch/fetch_request.cc

Index: content/browser/background_fetch/fetch_request.cc
diff --git a/content/browser/background_fetch/fetch_request.cc b/content/browser/background_fetch/fetch_request.cc
index 455c4d464d28af6b98ca6dd0d8c1b8f6c87f4078..57b99574343af4818ef891dd7e0a7fd9aea75564 100644
--- a/content/browser/background_fetch/fetch_request.cc
+++ b/content/browser/background_fetch/fetch_request.cc
@@ -13,21 +13,12 @@ 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;