editing/selection/iframe.html fails on Chromium 10.6 Debug bots about 1/3rd the time due to not painting the caret in the first position of the editable area. I'm marking it as flaky.
Also timing out now on 10.5 LEOPARD, widened suppression in test_expectations.txt
Marked LayoutTest bugs, bugs with Chromium IDs, and some others as WontFix. Test failure bugs still are trackable via TestExpectations or disabled unit tests.