Since borderPaddingMarginStart and borderPaddingMarginEnd do not call marginStartForChild & marginEndForChild, they should take RenderInline instead.
Created attachment 88478 [details] cleanup
Comment on attachment 88478 [details] cleanup OK.
Comment on attachment 88478 [details] cleanup Clearing flags on attachment: 88478 Committed r83098: <http://trac.webkit.org/changeset/83098>
All reviewed patches have been landed. Closing bug.