Add null-check for context_wrapper->context() in ForeignFetchRequestHandler.

content/browser/service_worker/foreign_fetch_request_handler.cc

Index: content/browser/service_worker/foreign_fetch_request_handler.cc
diff --git a/content/browser/service_worker/foreign_fetch_request_handler.cc b/content/browser/service_worker/foreign_fetch_request_handler.cc
index ab2d134554e4e818f0ddf3edda12dfdea52706f4..889730446f5ab5cda4baddf521987c99cf50f0aa 100644
--- a/content/browser/service_worker/foreign_fetch_request_handler.cc
+++ b/content/browser/service_worker/foreign_fetch_request_handler.cc
@@ -82,8 +82,10 @@ void ForeignFetchRequestHandler::InitializeHandler(
   if (!IsForeignFetchEnabled())
     return;
 
-  if (!context_wrapper)
+  if (!context_wrapper || !context_wrapper->context() ||
+      provider_id == kInvalidServiceWorkerProviderId) {
     return;
+  }
 
   if (skip_service_worker == SkipServiceWorker::ALL)
     return;