// The descendant-dependent flags system is badly broken because we clean dirty
// bits in upward tree walks, which means we need to call updateDescendantDependentFlags
// at every node in the tree to fully clean all the dirty bits. While we'll in
// the process of fixing this issue, updateDescendantDependentFlagsForEntireSubtree
// provides a big hammer for actually cleaning all the dirty bits in a subtree.
//
// FIXME: Remove this function once the descendant-dependent flags system keeps
// its dirty bits scoped to subtrees.
void updateDescendantDependentFlagsForEntireSubtree(PaintLayer& layer)
{
layer.updateDescendantDependentFlags();
for (PaintLayer* child = layer.firstChild(); child; child = child->nextSibling())
updateDescendantDependentFlagsForEntireSubtree(*child);
}
