Bug 305898 does not depend on any bugs.

Bug 305898 blocks 2 bugs:

•    305898: [appearance: base] Add default base properties for slider controls in UA style sheet [NEW; assigned to webkit-unassigned]
  •    305881: [appearance: base] Implement appearance base for slider controls [NEW; assigned to webkit-unassigned]
    •    305601: [appearance: base] Implement appearance: base for form controls [NEW; assigned to webkit-unassigned]