The fast/encoding/utf-16-big-endian-diffs.html test fails, the pixel results no longer match. It looks like the border between the cells are not collapsing.
Created attachment 9286 [details]
Created attachment 9287 [details]
The new results are correct and match Firefox and Opera. Fixing bug 3297 fixed WebKit's rendering but updated pixel results weren't checked in. See item 2. in bug 9496 for a complete list.
Landed new results in revision 18408.