Add missing #include <algorithm> (flutter#32003)

renyou · web-flow · commit f8be1023727b · 2022-03-14T09:09:29.000-07:00
See b/222535478 and cl/433590918
diff --git a/fml/shared_thread_merger.cc b/fml/shared_thread_merger.cc
@@ -6,6 +6,7 @@
 
 #include "flutter/fml/shared_thread_merger.h"
 
+#include <algorithm>
 #include <set>
 
 namespace fml {
