Add missing include to fml/hex_codec.h (flutter#55034)

jason-simmons · jesswrd · commit 1068620d6481 · 2024-09-11T15:45:48.000-07:00
diff --git a/fml/hex_codec.h b/fml/hex_codec.h
@@ -5,6 +5,7 @@
 #ifndef FLUTTER_FML_HEX_CODEC_H_
 #define FLUTTER_FML_HEX_CODEC_H_
 
+#include <string>
 #include <string_view>
 
 namespace fml {
