From 13f4dca274e33a0fef673e86c83f855c127a14bf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Emilio=20Cobos=20=C3=81lvarez?= <emilio@crisal.io>
Date: Mon, 26 Nov 2018 21:09:51 +0100
Subject: [PATCH] Bug 1505887 - Make UAWidgets chromeonly content. r=bz

Differential Revision: https://phabricator.services.mozilla.com/D11408
---
 dom/base/ShadowRoot.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dom/base/ShadowRoot.h b/dom/base/ShadowRoot.h
index 25d18a27d7e3..0a24a34712b3 100644
--- a/dom/base/ShadowRoot.h
+++ b/dom/base/ShadowRoot.h
@@ -211,6 +211,8 @@ public:
 
   void SetIsUAWidget()
   {
+    MOZ_ASSERT(!HasChildren());
+    SetFlags(NODE_IS_ROOT_OF_CHROME_ONLY_ACCESS | NODE_CHROME_ONLY_ACCESS);
     mIsUAWidget = true;
   }