[Fetch API] Request's JS wrapper should be kept alive in FetchEvent

third_party/WebKit/Source/web/ServiceWorkerGlobalScopeProxy.cpp

Index: third_party/WebKit/Source/web/ServiceWorkerGlobalScopeProxy.cpp
diff --git a/third_party/WebKit/Source/web/ServiceWorkerGlobalScopeProxy.cpp b/third_party/WebKit/Source/web/ServiceWorkerGlobalScopeProxy.cpp
index f8fccec40e5783ee2274d2e2e87b69bf5f06af1e..282b4efc23388e5777f33f85a4d6903a265f8e34 100644
--- a/third_party/WebKit/Source/web/ServiceWorkerGlobalScopeProxy.cpp
+++ b/third_party/WebKit/Source/web/ServiceWorkerGlobalScopeProxy.cpp
@@ -141,7 +141,7 @@ void ServiceWorkerGlobalScopeProxy::dispatchFetchEvent(int eventID, const WebSer
     eventInit.setRequest(request);
     eventInit.setClientId(webRequest.isMainResourceLoad() ? WebString() : webRequest.clientId());
     eventInit.setIsReload(webRequest.isReload());
-    FetchEvent* fetchEvent = FetchEvent::create(EventTypeNames::fetch, eventInit, observer);
+    FetchEvent* fetchEvent = FetchEvent::create(workerGlobalScope()->scriptController()->getScriptState(), EventTypeNames::fetch, eventInit, observer);
     DispatchEventResult dispatchResult = workerGlobalScope()->dispatchEvent(fetchEvent);
     observer->didDispatchEvent(dispatchResult);
 }
@@ -156,7 +156,7 @@ void ServiceWorkerGlobalScopeProxy::dispatchForeignFetchEvent(int eventID, const
     eventInit.setCancelable(true);
     eventInit.setRequest(request);
     eventInit.setOrigin(origin->toString());
-    ForeignFetchEvent* fetchEvent = ForeignFetchEvent::create(EventTypeNames::foreignfetch, eventInit, observer);
+    ForeignFetchEvent* fetchEvent = ForeignFetchEvent::create(workerGlobalScope()->scriptController()->getScriptState(), EventTypeNames::foreignfetch, eventInit, observer);
     DispatchEventResult dispatchResult = workerGlobalScope()->dispatchEvent(fetchEvent);
     observer->didDispatchEvent(dispatchResult);
 }