PA: Import chromium's :wexit_time_destructors.

Goal:
-----
Remove the //build dependency from partition_alloc. This
allows using this library from Skia. At the end, we will
be able to protect Skia from UAFs.
https://docs.google.com/document/d/1eSomKe-CoTSaaEhaCNySBzIaljXmsimm1_8kD4Aj8Tk/edit#heading=h.mv26uxhv0bsa

This patch:
-----------
Import the dependency into chromium.

Bug: crbug.com/41481467
Change-Id: Ie7e45057878b175b30cf77496c8d08c17dba6898
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5514913
Reviewed-by: danakj <danakj@chromium.org>
Commit-Queue: danakj <danakj@chromium.org>
Commit-Queue: Arthur Sonzogni <arthursonzogni@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1296897}