We occasionally use the term chrome to refer to the representation through which the user interacts with the user agent itself, as distinct from the accessed web content. This includes both primary and secondary user interface.
Web Security Context: User Interface Guidelines ( 版) http://www.w3.org/TR/2010/REC-wsc-ui-20100812/#def-chrome
分類
[2]chrome には一次利用者界面と二次利用者界面があります。
メモ
[3] Add non-normative description of 'browser chrome'
(vkatsikaros著, )
https://github.com/w3c/webdriver/commit/273ab5d835477a417f905d9b04521f2780ca6441