(JS|V8)DependentRetained.h were introduced for MutationObservers, they are not going to be used (See the discussion in bug 95519). We can remove them.
Created attachment 177961 [details] Patch
Comment on attachment 177961 [details] Patch Clearing flags on attachment: 177961 Committed r136815: <http://trac.webkit.org/changeset/136815>
All reviewed patches have been landed. Closing bug.