mozilla/servo — pull request #1507 by deokjinkim (2014-01-16 11:47:40+00:00)
Title: Implement white-space property(pre)

Current servo doesn't support line-break by new-line character.
To process new-line character, divide one box to 2 or 3 boxes.
(maybe text box, new-line box, text box...)
And later servo can break line using new-line box.