From cbd52d48fa2524beb37b506b55a315b49f026a1e Mon Sep 17 00:00:00 2001
From: wolfbeast <mcwerewolf@gmail.com>
Date: Sat, 7 Jul 2018 11:24:38 +0200
Subject: Make the page visibility API pref-controlled.

This resolves #607.
---
 dom/webidl/Document.webidl | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'dom')

diff --git a/dom/webidl/Document.webidl b/dom/webidl/Document.webidl
index 0b8c278fe..904b1fb77 100644
--- a/dom/webidl/Document.webidl
+++ b/dom/webidl/Document.webidl
@@ -277,8 +277,11 @@ partial interface Document {
 
 // https://w3c.github.io/page-visibility/#extensions-to-the-document-interface
 partial interface Document {
+  [Pref="dom.visibilityAPI.enabled"]
   readonly attribute boolean hidden;
+  [Pref="dom.visibilityAPI.enabled"]
   readonly attribute VisibilityState visibilityState;
+  [Pref="dom.visibilityAPI.enabled"]
            attribute EventHandler onvisibilitychange;
 };
 
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