Bug 1043701 followup: add missing #include to provide ServiceWorkerState enum. (no review, minor obviously-correct patch to fix local build bustage)

dom/workers/ServiceWorkerRegistration.h

@@ -8,6 +8,7 @@
 #define mozilla_dom_ServiceWorkerRegistration_h
 
 #include "mozilla/DOMEventTargetHelper.h"
+#include "mozilla/dom/ServiceWorkerBinding.h"
 #include "mozilla/dom/ServiceWorkerCommon.h"
 
 class nsPIDOMWindow;