Also clean up the formatting a bit with gn format.

BUG=537008

Change-Id: I23337e634f20f611aaae7d17ef47b5784738bbe8
Reviewed-on: https://chromium-review.googlesource.com/303793Reviewed-by: Kenneth Russell <kbr@chromium.org>
Tested-by: Jamie Madill <jmadill@chromium.org>