From 3da879e10cb78b0dd848ebcad8046c2c94cfa81b Mon Sep 17 00:00:00 2001
From: JW Wang <jwwang@mozilla.com>
Date: Wed, 30 Aug 2017 11:26:01 +0800
Subject: [PATCH] Bug 1395017. P2 - assert ResourceStreamIterator should either
 run in the main thread or with the lock held. r=cpearce

MozReview-Commit-ID: Jm9alyQFFtA

--HG--
extra : rebase_source : 7e9c880d6d1f30440ea1ddb65db57b0d6503c186
extra : intermediate-source : d30bc071a565283823be5fbd27c59da0242e8c18
extra : source : 1f69aab306347acce8e4d927c6315658a8af7a3b
---
 dom/media/MediaCache.cpp | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/dom/media/MediaCache.cpp b/dom/media/MediaCache.cpp
index cc4d4272f68c..c101ca670a91 100644
--- a/dom/media/MediaCache.cpp
+++ b/dom/media/MediaCache.cpp
@@ -234,6 +234,9 @@ public:
       , mResourceID(aResourceID)
       , mNext(0)
     {
+      MOZ_ASSERT(
+        NS_IsMainThread() ||
+        (aMediaCache->GetReentrantMonitor().AssertCurrentThreadIn(), true));
     }
     MediaCacheStream* Next()
     {