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* Add real localized text.
* Make text grey via "secondary" text styling.
* Retitle "Turn on" and "Turn off" buttons per latest UX spec.

https://screenshot.googleplex.com/RzQAQfbvwqC

Bug: 1013466
Change-Id: Ibae11cf543479c2038252525282bf6c4511a11f1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2108098
Commit-Queue: James Cook <jamescook@chromium.org>
Reviewed-by: Kyle Horimoto <khorimoto@chromium.org>
Cr-Commit-Position: refs/heads/master@{#751788}