From: Nico Grunbaum <na-g@nostrum.com>
Date: Wed, 10 Feb 2021 12:24:00 -0800
Subject: Bug 1654112 - Use newer thread run callback, and adapt
 PlatformUIThread; r=pehrsons

Differential Revision: https://phabricator.services.mozilla.com/D107879
Mercurial Revision: https://hg.mozilla.org/mozilla-central/rev/bb6417a4cfac1416a8e2565bd68b66c40be4827b
---
 rtc_base/platform_thread.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/rtc_base/platform_thread.h b/rtc_base/platform_thread.h
index befd61849d..5b7c6884fe 100644
--- a/rtc_base/platform_thread.h
+++ b/rtc_base/platform_thread.h
@@ -21,8 +21,13 @@
 #include "absl/types/optional.h"
 #include "rtc_base/platform_thread_types.h"
 
+#include "rtc_base/deprecated/recursive_critical_section.h"
+
 namespace rtc {
 
+// Bug 1691641
+class PlatformUIThread;
+
 enum class ThreadPriority {
   kLow = 1,
   kNormal,
@@ -113,6 +118,8 @@ class PlatformThread final {
 
   absl::optional<Handle> handle_;
   bool joinable_ = false;
+  // Bug 1691641
+  friend PlatformUIThread;
 };
 
 }  // namespace rtc