The existing general purpose iterator can traverse parent chain but not efficiently (since it builds stack). Add a separate stackless iterator for ancestor chain traversal.
Created attachment 263145 [details] patch
Comment on attachment 263145 [details] patch Attachment 263145 [details] did not pass mac-ews (mac): Output: http://webkit-queues.webkit.org/results/290839 Number of test failures exceeded the failure limit.
Created attachment 263149 [details] Archive of layout-test-results from ews102 for mac-mavericks The attached test failures were seen while running run-webkit-tests on the mac-ews. Bot: ews102 Port: mac-mavericks Platform: Mac OS X 10.9.5
Created attachment 263150 [details] patch
Comment on attachment 263150 [details] patch View in context: https://bugs.webkit.org/attachment.cgi?id=263150&action=review r=me > Source/WebCore/dom/Node.h:618 > + // HeyItIsAFreeBit = 1 << 22, Nice.
Comment on attachment 263150 [details] patch Clearing flags on attachment: 263150 Committed r191112: <http://trac.webkit.org/changeset/191112>
All reviewed patches have been landed. Closing bug.