reportSequenceMemoryUsage which provides more generic mechanism for instrumenting iterable sequence should be used instead of MemoryInstrumentation::addCollectionElements.
Created attachment 166833 [details] Patch
Comment on attachment 166833 [details] Patch lgtm
Comment on attachment 166833 [details] Patch Clearing flags on attachment: 166833 Committed r130272: <http://trac.webkit.org/changeset/130272>
All reviewed patches have been landed. Closing bug.