Inform the client when the Service Worker rejects an install event

Source/modules/serviceworkers/WaitUntilObserver.h

Index: Source/modules/serviceworkers/WaitUntilObserver.h
diff --git a/Source/modules/serviceworkers/WaitUntilObserver.h b/Source/modules/serviceworkers/WaitUntilObserver.h
index c5f537a7215ddfed8fea894dca9f8eb22a2a4cb4..685409a776e2c7005bf6274784de7e8f00e823e2 100644
--- a/Source/modules/serviceworkers/WaitUntilObserver.h
+++ b/Source/modules/serviceworkers/WaitUntilObserver.h
@@ -7,6 +7,7 @@
 
 #include "core/dom/ContextLifecycleObserver.h"
 #include "modules/serviceworkers/ServiceWorkerGlobalScopeClient.h"
+#include "public/platform/WebServiceWorkerEventResult.h"
 #include "wtf/Forward.h"
 #include "wtf/RefCounted.h"
 
@@ -44,6 +45,7 @@ private:
 
     int m_eventID;
     int m_pendingActivity;
+    blink::WebServiceWorkerEventResult m_result;
 };
 
 } // namespace WebCore