[Caja] Re: Fix ancestry for unattached nodes

[felix8a]

http://codereview.appspot.com/98088/diff/1002/7
File src/com/google/caja/plugin/domita.js (right):

http://codereview.appspot.com/98088/diff/1002/7#newcode1056
Line 1056: } else if (ancestor === node.ownerDocument.documentElement) {
could you hoist node.ownerDocument.documentElement
outside the loop?  traversing properties of dom nodes is slow.

http://codereview.appspot.com/98088