From 915c37a5a1b61cf1e47cd9a0ac7e94ca544b1c34 Mon Sep 17 00:00:00 2001
From: Tetsuharu OHZEKI <tetsuharu.ohzeki@gmail.com>
Date: Wed, 5 Feb 2020 15:24:29 +0000
Subject: [PATCH] Bug 1612951 - Replace the usages of nsIDocShellTreeItem with
 BrowsingContext in about:performance. r=florian

`nsIDocShellTreeItem.rootTreeItem` has been deprecated.
We should use an approach based on BrowsingContext.

Differential Revision: https://phabricator.services.mozilla.com/D61496

--HG--
extra : moz-landing-system : lando
---
 .../components/aboutperformance/content/aboutPerformance.js    | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/toolkit/components/aboutperformance/content/aboutPerformance.js b/toolkit/components/aboutperformance/content/aboutPerformance.js
index e9d74d64dcee..bf7b566bbc87 100644
--- a/toolkit/components/aboutperformance/content/aboutPerformance.js
+++ b/toolkit/components/aboutperformance/content/aboutPerformance.js
@@ -690,7 +690,8 @@ var Control = {
       if (target.classList.contains("addon-icon")) {
         let row = target.parentNode.parentNode;
         let id = row.windowId;
-        let parentWin = window.docShell.rootTreeItem.domWindow;
+        let parentWin =
+          window.docShell.browsingContext.embedderElement.ownerGlobal;
         parentWin.BrowserOpenAddonsMgr(
           "addons://detail/" + encodeURIComponent(id)
         );