Copy the original request header for navigation preload requests

content/browser/service_worker/service_worker_fetch_dispatcher.cc

Index: content/browser/service_worker/service_worker_fetch_dispatcher.cc
diff --git a/content/browser/service_worker/service_worker_fetch_dispatcher.cc b/content/browser/service_worker/service_worker_fetch_dispatcher.cc
index 85cf9d7db3ad27aae10f29f51f41cb6f0955f03d..039811c495809dbe32b2450255b5010db1054ae5 100644
--- a/content/browser/service_worker/service_worker_fetch_dispatcher.cc
+++ b/content/browser/service_worker/service_worker_fetch_dispatcher.cc
@@ -466,7 +466,8 @@ bool ServiceWorkerFetchDispatcher::MaybeStartNavigationPreload(
   ServiceWorkerMetrics::RecordNavigationPreloadRequestHeaderSize(
       version_->navigation_preload_state().header.length());
   request.headers = "Service-Worker-Navigation-Preload: " +
-                    version_->navigation_preload_state().header;
+                    version_->navigation_preload_state().header + "\r\n" +
+                    original_request->extra_request_headers().ToString();
 
   const int request_id = ResourceDispatcherHostImpl::Get()->MakeRequestID();
   DCHECK_LT(request_id, -1);