TS-4747: change parent_failures_update_hostdb to MgmtByte.

Author: jrushford

proxy/InkAPI.cc

@@ -8154,7 +8154,6 @@ _conf_to_memberp(TSOverridableConfigKey conf, OverridableHttpConfigParams *overr
     ret = &overridableHttpConfig->client_cert_filepath;
     break;
   case TS_CONFIG_PARENT_FAILURES_UPDATE_HOSTDB:
-    typ = OVERRIDABLE_TYPE_INT;
     ret = &overridableHttpConfig->parent_failures_update_hostdb;
     break;
   // This helps avoiding compiler warnings, yet detect unhandled enum members.

proxy/http/HttpConfig.cc

@@ -972,7 +972,7 @@ HttpConfig::startup()
   HttpEstablishStaticConfigLongLong(c.oride.parent_connect_attempts, "proxy.config.http.parent_proxy.total_connect_attempts");
   HttpEstablishStaticConfigLongLong(c.per_parent_connect_attempts, "proxy.config.http.parent_proxy.per_parent_connect_attempts");
   HttpEstablishStaticConfigLongLong(c.parent_connect_timeout, "proxy.config.http.parent_proxy.connect_attempts_timeout");
-  HttpEstablishStaticConfigLongLong(c.oride.parent_failures_update_hostdb, "proxy.config.http.parent_proxy.mark_down_hostdb");
+  HttpEstablishStaticConfigByte(c.oride.parent_failures_update_hostdb, "proxy.config.http.parent_proxy.mark_down_hostdb");
 
   HttpEstablishStaticConfigLongLong(c.oride.sock_recv_buffer_size_out, "proxy.config.net.sock_recv_buffer_size_out");
   HttpEstablishStaticConfigLongLong(c.oride.sock_send_buffer_size_out, "proxy.config.net.sock_send_buffer_size_out");

proxy/http/HttpConfig.h

@@ -564,7 +564,7 @@ struct OverridableHttpConfigParams {
   // hostdb/dns variables //
   //////////////////////////
   MgmtByte srv_enabled;
-  MgmtInt parent_failures_update_hostdb;
+  MgmtByte parent_failures_update_hostdb;
 
   MgmtByte cache_open_write_fail_action;