From f0f2a09c5a1027cf7ca7013898e81d6344abd7a6 Mon Sep 17 00:00:00 2001
From: Cervantes Yu <cyu@mozilla.com>
Date: Wed, 5 Oct 2016 16:57:31 +0800
Subject: [PATCH] Bug 1278443 - Part 2: Continue to run the worker even if
 BackgroundChild fails to create. r=mrbkap

MozReview-Commit-ID: LBBN4hfXigf

--HG--
extra : rebase_source : f35e75eebf051ec5eb6948bbeb7742a573168602
---
 dom/workers/RuntimeService.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/dom/workers/RuntimeService.cpp b/dom/workers/RuntimeService.cpp
index 8bc6f0c5ac81..fb9b2ec6d854 100644
--- a/dom/workers/RuntimeService.cpp
+++ b/dom/workers/RuntimeService.cpp
@@ -2808,7 +2808,8 @@ WorkerThreadPrimaryRunnable::Run()
   //       worker messages here.
   if (NS_WARN_IF(!BackgroundChild::SynchronouslyCreateForCurrentThread())) {
     // XXX need to fire an error at parent.
-    return NS_ERROR_UNEXPECTED;
+    // Failed in creating BackgroundChild: probably in shutdown. Continue to run
+    // without BackgroundChild created.
   }
 
   class MOZ_STACK_CLASS SetThreadHelper final