ServiceWorker: Wait for registration promise to resolve before changing states.

Source/modules/push_messaging/PushRegistration.h

Index: Source/modules/push_messaging/PushRegistration.h
diff --git a/Source/modules/push_messaging/PushRegistration.h b/Source/modules/push_messaging/PushRegistration.h
index 430501e6a064eee4fa8bd2d76220f1e73204be39..ebfcf7173a57955ec82051bcdca9b6b3259b81c0 100644
--- a/Source/modules/push_messaging/PushRegistration.h
+++ b/Source/modules/push_messaging/PushRegistration.h
@@ -13,13 +13,13 @@
 
 namespace WebCore {
 
-class NewScriptState;
+class ScriptPromiseResolverWithContext;
 
 class PushRegistration FINAL : public RefCountedWillBeGarbageCollectedFinalized<PushRegistration>, public ScriptWrappable {
 public:
     // For CallbackPromiseAdapter.
     typedef blink::WebPushRegistration WebType;
-    static PassRefPtrWillBeRawPtr<PushRegistration> from(NewScriptState*, WebType* registrationRaw)
+    static PassRefPtrWillBeRawPtr<PushRegistration> from(ScriptPromiseResolverWithContext*, WebType* registrationRaw)
     {
         OwnPtr<WebType> registration = adoptPtr(registrationRaw);
         return adoptRefWillBeNoop(new PushRegistration(registration->endpoint, registration->registrationId));