kLeftBottom
fCorners[Corner::kLeftBottom].Trace();
{ return &fCorners[Corner::kLeftBottom]; }
if (_FindFreeAreaInGroup(group, Corner::kLeftBottom))
case Corner::kLeftBottom:
case Corner::kLeftBottom:
case Corner::kLeftBottom:
fFreeAreaTop ? Corner::kLeftBottom : Corner::kLeftTop,
vTabs, fFreeAreaLeft ? Corner::kRightBottom : Corner::kLeftBottom,