Fixing clang-tidy warning.

Bug: v8:8015
Cq-Include-Trybots: luci.chromium.try:linux_chromium_rel_ng
Change-Id: I4f9eb0fedbe1d35a571f3d5b111705a820edfb5b
Reviewed-on: https://chromium-review.googlesource.com/1224377
Commit-Queue: Florian Sattler <sattlerf@google.com>
Reviewed-by: Ulan Degenbaev <ulan@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55905}