Make API callback objects use weak handles to run their finalizers
Created attachment 89297 [details] Patch
Comment on attachment 89297 [details] Patch When it becomes more common, we should find a way to make it easier and less error-prone to create a "finalize-only" style of handle.
Committed r83661: <http://trac.webkit.org/changeset/83661>
Committed r83664: <http://trac.webkit.org/changeset/83664>