Add a blob field to ServiceWorkerFetchResponse and read the blob

content/browser/service_worker/embedded_worker_test_helper.cc

Index: content/browser/service_worker/embedded_worker_test_helper.cc
diff --git a/content/browser/service_worker/embedded_worker_test_helper.cc b/content/browser/service_worker/embedded_worker_test_helper.cc
index 8d31e6b7dc61bf6e0485950c8e36ad763d536ddd..82d206142a183a7e1d34c093e915d10730a75456 100644
--- a/content/browser/service_worker/embedded_worker_test_helper.cc
+++ b/content/browser/service_worker/embedded_worker_test_helper.cc
@@ -127,10 +127,12 @@ void EmbeddedWorkerTestHelper::OnFetchEvent(
     const ServiceWorkerFetchRequest& request) {
   SimulateSend(
       new ServiceWorkerHostMsg_FetchEventFinished(
-          embedded_worker_id, request_id,
+          embedded_worker_id,
+          request_id,
           SERVICE_WORKER_FETCH_EVENT_RESULT_RESPONSE,
           ServiceWorkerResponse(200, "OK",
-                                std::map<std::string, std::string>())));
+                                std::map<std::string, std::string>(),
+                                std::string())));
 }
 
 void EmbeddedWorkerTestHelper::SimulateWorkerStarted(