GitLab

- This CL is based on dpapapd@ comments on
crrev.com/c/2098906

- Moved ChromeURLDisabledUI to a separate folder
under webui/chromeos directory.

Change-Id: I17a3ab761b91a05af00d6c6db5e9d857d7ba488b
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2349708Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
Commit-Queue: Aya Elsayed <ayaelattar@chromium.org>
Cr-Commit-Position: refs/heads/master@{#797391}