Chromium does not use this name any more since
https://crrev.com/c/1369854, so we can deprecate it for the 7.3 branch.

R=adamk@chromium.org

Bug: v8:8238, chromium:912031
Change-Id: I0625f58a893f48d89dec76851af292c9c32af035
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Reviewed-on: https://chromium-review.googlesource.com/c/1370035Reviewed-by: Adam Klein <adamk@chromium.org>
Commit-Queue: Clemens Hammacher <clemensh@chromium.org>
Cr-Commit-Position: refs/heads/master@{#58183}