diff -up chromium-49.0.2618.8/components/copresence/handlers/audio/audio_directive_list.cc.bak chromium-49.0.2618.8/components/copresence/handlers/audio/audio_directive_list.cc
--- chromium-49.0.2618.8/components/copresence/handlers/audio/audio_directive_list.cc.bak	2016-01-08 09:00:55.000000000 +0100
+++ chromium-49.0.2618.8/components/copresence/handlers/audio/audio_directive_list.cc	2016-01-15 13:07:39.211452161 +0100
@@ -4,6 +4,8 @@
 
 #include "components/copresence/handlers/audio/audio_directive_list.h"
 
+#include <algorithm>
+
 namespace copresence {
 
 // Public functions.