MB-20054: Fix windows build error by including a missing header file
MB-20054: Fix windows build error by including a missing header file

Change-Id: Ifdc8d6a09e8ff1bd68218066cffa44bc9de0a5a3
Reviewed-on: http://review.couchbase.org/65589
Well-Formed: buildbot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Tested-by: buildbot <80754af91bfb6d1073585b046fe0a474ce868509@couchbase.com>
Reviewed-by: Sriram Ganesan <fde85c3124eed34938bb85159f430bf7e5b650f6@couchbase.com>

couchbase/ep-engine,daverigby/ep-engine,teligent-ru/ep-engine,daverigby/kv_engine,membase/ep-engine,couchbase/ep-engine,daverigby/ep-engine,daverigby/kv_engine,membase/ep-engine,couchbase/ep-engine,teligent-ru/ep-engine,membase/ep-engine,daverigby/kv_engine,daverigby/kv_engine,daverigby/ep-engine,couchbase/ep-engine,teligent-ru/ep-engine,membase/ep-engine,teligent-ru/ep-engine,daverigby/ep-engine