Fix a rounding bug paintNinePieceImage.
Created attachment 143143 [details] Patch
Comment on attachment 143143 [details] Patch Looks good. I should also comment that this only affects Chromium for now, and Chromium-Mac is the only other platform that may need rebaselines associated with this.
Committed r117855: <http://trac.webkit.org/changeset/117855>