chrome.i18n apis

[BL]

Hi,

Can chrome app dynamically switching between languages ?

I saw the draft doc provides the chrome.i18n.setAcceptLanguages() but Chrome developer doc has no such api ?

https://developer.chrome.com/extensions/i18n

https://sites.google.com/a/chromium.org/dev/developers/design-documents/extensions/proposed-changes/apis-under-development/i18n-api

Draft API spec

chrome.i18n.

    void getAcceptLanguages(void callback(String acceptLanguages))

    void setAcceptLanguages(Value newAcceptLanguages)

    void appendAcceptLanguage(Value acceptLanguage)

Thks