* include/ap_socache.h: Define AP_SOCACHE_DEFAULT_PROVIDER as a

  default provider name, to allow consumers to use a default provider
  if not configured otherwise.

* modules/cache/mod_socache_shmcb.c (register_hooks): Register shmcb
  as the default provider.


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@724723 13f79535-47bb-0310-9956-ffa450edef68