Make all handlers objects refcounted.

I'm realizing that basically all upb objects
will need to be refcounted to be sharable
across languages, but *not* messages which
are on their way out so we can get out of
the business of data representations.

Things which must be refcounted:
- encoders, decoders
- handlers objects
- defs

1 files changed, 1 insertions, 1 deletions

diff --git a/src/upb_string.c b/src/upb_string.c
index 8625f76..122eec4 100644
--- a/src/upb_string.c
+++ b/src/upb_string.c
@@ -35,7 +35,7 @@ upb_string *upb_string_new() {
   str->size = 0;
 #endif
   str->src = NULL;
-  upb_atomic_refcount_init(&str->refcount, 1);
+  upb_atomic_init(&str->refcount, 1);
   return str;
 }