[WebLayer] Fix bad code formatting

Somehow this code got committed without git cl format being run.

Change-Id: I85ded7a8e9a5ec6e9d31ad8af38669bc12b3a49a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1894535
Commit-Queue: Clark DuVall <cduvall@chromium.org>
Auto-Submit: Clark DuVall <cduvall@chromium.org>
Reviewed-by: John Abd-El-Malek <jam@chromium.org>
Cr-Commit-Position: refs/heads/master@{#711545}
16 files changed