[Autofill Views] Expanding comment

This CL is a follow-up to:
https://chromium-review.googlesource.com/c/chromium/src/+/1140913

During review, ftirelo@ requested improvements to documentation. I
made, but forgot to upload, those changes prior to landing. This CL
corrects that mistake.

Change-Id: I2d6c14eff128d5fb26fe70985324203bfedc344d
Bug: 863930
Reviewed-on: https://chromium-review.googlesource.com/1144213
Commit-Queue: Tommy Martino <tmartino@chromium.org>
Reviewed-by: Fabio Tirelo <ftirelo@chromium.org>
Reviewed-by: Evan Stade <estade@chromium.org>
Cr-Commit-Position: refs/heads/master@{#576887}
1 file changed