GitLab

Makes the logo Finch-configurable. Flag is enabled by default.

Bug: 1168361
Change-Id: Ie9fbeebb5f88fcf6ca2d6a418759f65e61d3231e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2639153
Commit-Queue: Tibor Goldschwendt <tiborg@chromium.org>
Reviewed-by: Esmael Elmoslimany <aee@chromium.org>
Cr-Commit-Position: refs/heads/master@{#845490}