When the new parser was enabled, metrics in fast/forms/isindex-placeholder changed. The expected results were updated, but the pixel tests were not. I can't tell if this is actually a progression.
To see what I mean: run-webkit-tests --pixel fast/forms/isindex-placeholder.html
http://trac.webkit.org/export/71873/trunk/LayoutTests/fast/forms/isindex-placeholder.html http://trac.webkit.org/browser/trunk/LayoutTests/platform/mac/fast/forms/isindex-placeholder-expected.png http://trac.webkit.org/browser/trunk/LayoutTests/platform/mac/fast/forms/isindex-placeholder-expected.txt
I expect this is an artifact of <isindex> being auto-replaced by a <form><input> DOM now: http://www.whatwg.org/specs/web-apps/current-work/multipage/tokenization.html#parsing-main-inbody Maybe <form> has some implicit padding after it which <isindex> did not before?
<isindex> turns into: <form><hr><label><input></input></label><hr></form> I expect there is some implicit padding on one of those. If we compared that above dom to <isindex> in this example in SAfari 5, I expect this would be an expected change.
Following test got deleted as well: https://github.com/WebKit/WebKit/commit/c92f223d57abd60e7bc682985a103744f3760672 No need to do improvement in 'isindex' etc. Changing to 'RESOLVED WONTFIX'.