From be0b582aea57bee0248e2b68435edaa5f57557e6 Mon Sep 17 00:00:00 2001
From: Neil Rashbrook <neil@parkwaycc.co.uk>
Date: Thu, 20 Sep 2018 08:44:00 +0200
Subject: [PATCH] Bug 1492884 - Add 'attention' to tabs API for WebExtensions
 after bug 1396684. r=darktrojan

---
 mail/components/extensions/parent/ext-mail.js | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/mail/components/extensions/parent/ext-mail.js b/mail/components/extensions/parent/ext-mail.js
index 1847a544bd..54b2153d02 100644
--- a/mail/components/extensions/parent/ext-mail.js
+++ b/mail/components/extensions/parent/ext-mail.js
@@ -629,6 +629,11 @@ class Tab extends TabBase {
     return windowTracker.getId(this.window);
   }
 
+  /** Returns the attention state of the tab. */
+  get attention() {
+    return false;
+  }
+
   /** Returns the article state of the tab. */
   get isArticle() {
     return false;