From: Andreas Pehrson <apehrson@mozilla.com>
Date: Tue, 2 Nov 2021 14:35:00 +0000
Subject: Bug 1729455 - Ensure the libwebrtc system clock is not used. r=bwc

Differential Revision: https://phabricator.services.mozilla.com/D128244
Mercurial Revision: https://hg.mozilla.org/mozilla-central/rev/3e8ac168ee3db089dd892bf140df53e15d6f0918
---
 rtc_base/system_time.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/rtc_base/system_time.cc b/rtc_base/system_time.cc
index 058e6c2990..1a5e447916 100644
--- a/rtc_base/system_time.cc
+++ b/rtc_base/system_time.cc
@@ -12,6 +12,8 @@
 // rtc::SystemTimeNanos() must be provided externally.
 #ifndef WEBRTC_EXCLUDE_SYSTEM_TIME
 
+#error Mozilla: Must not use the built-in libwebrtc clock
+
 #include <stdint.h>
 
 #include <limits>