I saw fetching values from local storage fairly high in the CPU profiler.
Created attachment 127380 [details] Patch
Comment on attachment 127380 [details] Patch Rejecting attachment 127380 [details] from commit-queue. New failing tests: inspector/storage-panel-dom-storage.html inspector/debugger/scripts-panel.html Full output: http://queues.webkit.org/results/11541098
Committed r107953: <http://trac.webkit.org/changeset/107953>