[ServivceWorker] Treat rejecting respondWith as a Network Error

Source/web/ServiceWorkerGlobalScopeClientImpl.cpp

Index: Source/web/ServiceWorkerGlobalScopeClientImpl.cpp
diff --git a/Source/web/ServiceWorkerGlobalScopeClientImpl.cpp b/Source/web/ServiceWorkerGlobalScopeClientImpl.cpp
index a08df446ac810f6955a6b7667f8912a069e18d89..ab88fe3e175ff4e6484243afe5449a5985baf42a 100644
--- a/Source/web/ServiceWorkerGlobalScopeClientImpl.cpp
+++ b/Source/web/ServiceWorkerGlobalScopeClientImpl.cpp
@@ -74,20 +74,13 @@ void ServiceWorkerGlobalScopeClientImpl::didHandleInstallEvent(int installEventI
     m_client.didHandleInstallEvent(installEventID, result);
 }
 
-void ServiceWorkerGlobalScopeClientImpl::didHandleFetchEvent(int fetchEventID, Response* response)
+void ServiceWorkerGlobalScopeClientImpl::didHandleFetchEvent(int fetchEventID)
+{
+    m_client.didHandleFetchEvent(fetchEventID);
+}
+
+void ServiceWorkerGlobalScopeClientImpl::didHandleFetchEvent(int fetchEventID, const WebServiceWorkerResponse& webResponse)
 {
-    if (!response) {
-        m_client.didHandleFetchEvent(fetchEventID);
-        return;
-    }
-
-    WebServiceWorkerResponse webResponse;
-    response->populateWebServiceWorkerResponse(webResponse);
-    if (webResponse.status() == 0) {
-        // The status code is 0 means a network error.
-        m_client.didHandleFetchEvent(fetchEventID);
-        return;
-    }
     m_client.didHandleFetchEvent(fetchEventID, webResponse);
 }