[css-overflow-5]: browser translation of accessible name strings for scroll-markers and scroll-buttons

[smhigley]

This isn't currently happening for understandable reasons, but I wanted to open an issue to get browser implenetors' feedback on the feasibility of auto-translating strings given the current format of:

content: 'string-not-to-be-translated' / 'string that should be translated';

There's a bit of history of screen-reader-only content getting left out of localization efforts both in browsers and by authors (e.g. aria-label taking quite a while to be included in translation), and this seems like it has a high potential to follow that trend so I wanted to make sure this is raised early.

Essentially, for browser folks, I'm curious if:

• This format with content + / can feasibly be included in strings to be translated
• Would this interfere with efforts to include CSS content in general in translations
• Could this be implemented before CSS overflow becomes a stable/released feature

[smhigley]

(sorry for the incorrect title, apparently github glitches a bit if you lose internet and have multiple drafts of new issues open in different tabs 😅)

[smhigley]

cc/ @flackr for review