fix Windows bustage from bug 552216.

gfx/thebes/src/woff.h

@@ -48,6 +48,7 @@ typedef int            int32_t;
 typedef unsigned char  uint8_t;
 typedef unsigned short uint16_t;
 typedef unsigned int   uint32_t;
+typedef unsigned __int64  uint64_t;
 #else
 #include <inttypes.h>
 #endif