Limit timeout for foreign fetch events when triggered by another service worker.

content/browser/service_worker/service_worker_fetch_dispatcher.h

Index: content/browser/service_worker/service_worker_fetch_dispatcher.h
diff --git a/content/browser/service_worker/service_worker_fetch_dispatcher.h b/content/browser/service_worker/service_worker_fetch_dispatcher.h
index c28818e80ef334908f8ed7b6576e044a5c206d93..319f0310f5e0aeee7d25a028e960450e2cf739ce 100644
--- a/content/browser/service_worker/service_worker_fetch_dispatcher.h
+++ b/content/browser/service_worker/service_worker_fetch_dispatcher.h
@@ -10,6 +10,8 @@
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
+#include "base/optional.h"
+#include "base/time/time.h"
 #include "content/browser/service_worker/service_worker_metrics.h"
 #include "content/common/content_export.h"
 #include "content/common/service_worker/service_worker_event_dispatcher.mojom.h"
@@ -41,6 +43,7 @@ class CONTENT_EXPORT ServiceWorkerFetchDispatcher {
       std::unique_ptr<ServiceWorkerFetchRequest> request,
       ServiceWorkerVersion* version,
       ResourceType resource_type,
+      const base::Optional<base::TimeDelta>& timeout,
       const net::NetLogWithSource& net_log,
       const base::Closure& prepare_callback,
       const FetchCallback& fetch_callback);
@@ -81,6 +84,7 @@ class CONTENT_EXPORT ServiceWorkerFetchDispatcher {
   FetchCallback fetch_callback_;
   std::unique_ptr<ServiceWorkerFetchRequest> request_;
   ResourceType resource_type_;
+  base::Optional<base::TimeDelta> timeout_;
   bool did_complete_;
   mojom::URLLoaderFactoryPtr url_loader_factory_;
   std::unique_ptr<mojom::URLLoader> url_loader_;