Change display:contents reference to avoid Blink text shaping bug.

Split the PASS text of the reference into multiple inlines like the
test does.

The reference did not match in Blink because of a text shaping bug:

https://crbug.com/6122

Bug: 657748, 6122
Change-Id: If9894d45415a8f9ada80c2912abbd552a181b423
Reviewed-on: https://chromium-review.googlesource.com/784933
Reviewed-by: Dominik Röttsches <drott@chromium.org>
Commit-Queue: Rune Lillesveen <futhark@chromium.org>
Cr-Commit-Position: refs/heads/master@{#518605}
2 files changed