tree 51cf62533d9e377378ce1ce935d0b2986fabe961
parent c76d40c0a51ba2aa70a60eb5bef1708b53ab4679
author Helmut Januschka <helmut@januschka.com> 1743715599 -0700
committer Chromium LUCI CQ <chromium-scoped@luci-project-accounts.iam.gserviceaccount.com> 1743715599 -0700

[sandbox] Modernize Environment::GetVar to use std::optional

Updates GetVar usage in //sandbox to use the modern std::optional API
instead of out-parameters.

Bug: 400758498

Change-Id: I75a2dd58499e41925eb433b58e0c71e3984f195f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6425903
Commit-Queue: Helmut Januschka <helmut@januschka.com>
Reviewed-by: Alex Gough <ajgo@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1442428}