Fixing clang-tidy warning.

Bug: v8:8015
Change-Id: I9f76c7d530b22a030c9969dfee821e0896c358fb
Reviewed-on: https://chromium-review.googlesource.com/1224171
Commit-Queue: Florian Sattler <sattlerf@google.com>
Reviewed-by: Tobias Tebbi <tebbi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#55989}