GitLab

Adds descriptions to the new actions opening settings in Manual
Fallback.

Bug: 845472
Change-Id: If6ff348f3e8277ada4756001cfa4b98d3cc520e5
Reviewed-on: https://chromium-review.googlesource.com/c/1341535Reviewed-by: Brian White <bcwhite@chromium.org>
Commit-Queue: Javier Ernesto Flores Robles <javierrobles@chromium.org>
Cr-Commit-Position: refs/heads/master@{#609275}