Currently the Benchmark object holds two members for the options: Benchmark.options and Benchmark._options. I think one of them we added by mistake assuming the Benchmark does not hold a reference to the options. Also the Animator references the options through the reference it holds to the Benchmark.
Created attachment 265520 [details]
Comment on attachment 265520 [details]
Clearing flags on attachment: 265520
Committed r192491: <http://trac.webkit.org/changeset/192491>
All reviewed patches have been landed. Closing bug.