From d78f4aec16ddcc7c715ccc2b7f37a8c4bd3ae676 Mon Sep 17 00:00:00 2001
From: Ben Kelly <ben@wanderview.com>
Date: Thu, 21 Apr 2016 16:10:40 -0700
Subject: [PATCH] Bug 1265795 P3 Assert that controlled documents have an outer
 window. r=bz

---
 dom/workers/ServiceWorkerManager.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/dom/workers/ServiceWorkerManager.cpp b/dom/workers/ServiceWorkerManager.cpp
index 242b67a825f5..ac20c90fe25f 100644
--- a/dom/workers/ServiceWorkerManager.cpp
+++ b/dom/workers/ServiceWorkerManager.cpp
@@ -2787,6 +2787,10 @@ ServiceWorkerManager::GetAllClients(nsIPrincipal* aPrincipal,
       }
 
       nsCOMPtr<nsIDocument> doc = do_QueryInterface(iter.Key());
+
+      // All controlled documents must have an outer window.
+      MOZ_ASSERT(doc->GetWindow());
+
       ProcessDocument(aPrincipal, doc);
     }
   }