am aaa920d7: Merge "Make Unicode.h use types that match libc++."

* commit 'aaa920d7969d9dd4b9e7871f2758d9092095bead':
  Make Unicode.h use types that match libc++.
diff --git a/include/utils/Unicode.h b/include/utils/Unicode.h
index 5b98de2..aaf951b 100644
--- a/include/utils/Unicode.h
+++ b/include/utils/Unicode.h
@@ -24,8 +24,8 @@
 
 // Definitions exist in C++11
 #if defined __cplusplus && __cplusplus < 201103L
-typedef uint32_t char32_t;
-typedef uint16_t char16_t;
+typedef unsigned int   char32_t;
+typedef unsigned short char16_t;
 #endif
 
 // Standard string functions on char16_t strings.