From 9ce73065bad8ec9c77c4f2bf8d66616700bc888d Mon Sep 17 00:00:00 2001
From: wolfbeast <mcwerewolf@wolfbeast.com>
Date: Sat, 23 Mar 2019 13:10:32 +0100
Subject: [PATCH] Revert "Unregister ProcessHangMonitor as a hang annotator on
 shutdown."

This reverts commit 68acc67ddbbd1c7a9577498ad41d079e6b9e3eac.
---
 dom/ipc/ProcessHangMonitor.cpp | 2 --
 1 file changed, 2 deletions(-)

diff --git a/dom/ipc/ProcessHangMonitor.cpp b/dom/ipc/ProcessHangMonitor.cpp
index 406d0bf0aa..d46a1f5d5e 100644
--- a/dom/ipc/ProcessHangMonitor.cpp
+++ b/dom/ipc/ProcessHangMonitor.cpp
@@ -323,8 +323,6 @@ HangMonitorChild::Shutdown()
 {
   MOZ_RELEASE_ASSERT(NS_IsMainThread());
 
-  BackgroundHangMonitor::UnregisterAnnotator(*this);
-
   MonitorAutoLock lock(mMonitor);
   while (!mShutdownDone) {
     mMonitor.Wait();