Include the memory header as unique_ptr is used in ASCII Trie. (flutter#18978)

chinmaygarde · web-flow · commit db7f226c5ee5 · 2020-06-10T17:25:04.000-07:00
diff --git a/fml/ascii_trie.h b/fml/ascii_trie.h
@@ -5,6 +5,7 @@
 #ifndef FLUTTER_FML_ASCIITRIE_H_
 #define FLUTTER_FML_ASCIITRIE_H_
 
+#include <memory>
 #include <string>
 #include <vector>
 
