It's old & not used recently & obsolete. It was mainly used for measuring the
effect of preparse data, which we no longer have.

BUG=v8:7570

Change-Id: Ic31958e736fbf9645e014f6ef61dd6cf72a42c76
Reviewed-on: https://chromium-review.googlesource.com/1032390Reviewed-by: Georg Neis <neis@chromium.org>
Commit-Queue: Marja Hölttä <marja@chromium.org>
Cr-Commit-Position: refs/heads/master@{#52830}