CopiedBlock and MarkedBlock should have proper value semantics (i.e., destructors)
Created attachment 143373 [details] Patch
Comment on attachment 143373 [details] Patch R=me as well.
Comment on attachment 143373 [details] Patch Attachment 143373 [details] did not pass win-ews (win): Output: http://queues.webkit.org/results/12739946
Created attachment 143397 [details] Patch
Re-uploading to see if I can make Windows happy.
Committed r118083: <http://trac.webkit.org/changeset/118083>
Comment on attachment 143397 [details] Patch Oliver and Phil reviewed this.