Fix AttrHelpersForLayout
Fix AttrHelpersForLayout

We should never be returning 'static stuff from attrs, that's a big lie.

splav/servo,splav/servo,KiChjang/servo,KiChjang/servo,KiChjang/servo,splav/servo,splav/servo,splav/servo,KiChjang/servo,splav/servo,KiChjang/servo,splav/servo,KiChjang/servo,splav/servo,KiChjang/servo,splav/servo,KiChjang/servo,KiChjang/servo,splav/servo,KiChjang/servo