Due to complex and slow process of upstreaming it's easier to disable
this warning than to fix it upstream. Only happens in a Chromium build
because Chromium uses a specialized standard library.

Bug: angleproject:3353
Change-Id: I01607a00e469110c87458458d3b205fd59ea3db3
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1614426Reviewed-by: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com>
Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Commit-Queue: Jamie Madill <jmadill@chromium.org>