Roll RE2 from a6b90a26d5b3 to 7272283b3842 (1 revision)

https://chromium.googlesource.com/external/github.com/google/re2.git/+log/a6b90a26d5b3..7272283b3842

2021-08-27 junyer@google.com Use SRWLOCK_INIT instead of InitializeSRWLock().

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/re2-chromium
Please CC thakis@chromium.org,junyer@chromium.org on the revert to ensure that a human
is aware of the problem.

To file a bug in Chromium: https://bugs.chromium.org/p/chromium/issues/entry

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+doc/main/autoroll/README.md

Tbr: thakis@chromium.org,junyer@chromium.org
Change-Id: I7ea44b8fcedaec724c2950bfe450d4af3d5a4c3d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3123311
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Bot-Commit: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/main@{#915926}