The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/bbacb1fc64b4ffc4b92723a0fa891b630b678837

commit bbacb1fc64b4ffc4b92723a0fa891b630b678837
Author: Katie Dillon <kdillon@chromium.org>
Date: Tue Nov 13 02:27:31 2018

Adding UseCounter on document freeze.

Bug:  883480 
Change-Id: I38f816ee918c597b4f4020fa79a6ce2f0785d947
Reviewed-on: https://chromium-review.googlesource.com/c/1257679
Commit-Queue: Katie Dillon <kdillon@chromium.org>
Reviewed-by: Hayato Ito <hayato@chromium.org>
Reviewed-by: Shubhie Panicker <panicker@chromium.org>
Cr-Commit-Position: refs/heads/master@{#607449}
[modify] https://crrev.com/bbacb1fc64b4ffc4b92723a0fa891b630b678837/third_party/blink/public/platform/web_feature.mojom
[modify] https://crrev.com/bbacb1fc64b4ffc4b92723a0fa891b630b678837/third_party/blink/renderer/core/dom/document.cc
[modify] https://crrev.com/bbacb1fc64b4ffc4b92723a0fa891b630b678837/tools/metrics/histograms/enums.xml