Updating range_in_rows for the include file for ha_example (the main .cc file...

Updating range_in_rows for the include file for ha_example (the main .cc file has already been updated). 

sql/examples/ha_example.h

@@ -114,10 +114,8 @@ public:
   int reset(void);
   int external_lock(THD *thd, int lock_type);
   int delete_all_rows(void);
-  ha_rows records_in_range(int inx, const byte *start_key,uint start_key_len,
-                           enum ha_rkey_function start_search_flag,
-                           const byte *end_key,uint end_key_len,
-                           enum ha_rkey_function end_search_flag);
+  ha_rows records_in_range(uint inx, key_range *min_key,
+                           key_range *max_key);
   int delete_table(const char *from);
   int rename_table(const char * from, const char * to);
   int create(const char *name, TABLE *form, HA_CREATE_INFO *create_info);