Leaving descriptor unclosed will cause the resources associated with the open file description never be freed (they are freed on closing the last descriptor referring to the underlying file).
Created attachment 235823 [details] proposed patch
Comment on attachment 235823 [details] proposed patch Clearing flags on attachment: 235823 Committed r172724: <http://trac.webkit.org/changeset/172724>
All reviewed patches have been landed. Closing bug.