The following tests time out in Chrome but not in Safari:

html/syntax/parsing/html5lib_adoption01.html
html/syntax/parsing/html5lib_adoption02.html
html/syntax/parsing/html5lib_comments01.html
html/syntax/parsing/html5lib_doctype01.html
html/syntax/parsing/html5lib_domjs-unsafe.html
html/syntax/parsing/html5lib_entities01.html
html/syntax/parsing/html5lib_entities02.html
html/syntax/parsing/html5lib_html5test-com.html
html/syntax/parsing/html5lib_inbody01.html
html/syntax/parsing/html5lib_isindex.html
html/syntax/parsing/html5lib_main-element.html
html/syntax/parsing/html5lib_menuitem-element.html
html/syntax/parsing/html5lib_namespace-sensitivity.html
html/syntax/parsing/html5lib_pending-spec-changes-plain-text-unsafe.html
html/syntax/parsing/html5lib_pending-spec-changes.html
html/syntax/parsing/html5lib_plain-text-unsafe.html
html/syntax/parsing/html5lib_ruby.html
html/syntax/parsing/html5lib_scriptdata01.html
html/syntax/parsing/html5lib_scripted_adoption01.html
html/syntax/parsing/html5lib_scripted_ark.html
html/syntax/parsing/html5lib_scripted_webkit01.html
html/syntax/parsing/html5lib_tables01.html
html/syntax/parsing/html5lib_template.html
html/syntax/parsing/html5lib_tests1.html
html/syntax/parsing/html5lib_tests10.html
html/syntax/parsing/html5lib_tests11.html
html/syntax/parsing/html5lib_tests12.html
html/syntax/parsing/html5lib_tests14.html
html/syntax/parsing/html5lib_tests15.html
html/syntax/parsing/html5lib_tests16.html
html/syntax/parsing/html5lib_tests17.html
html/syntax/parsing/html5lib_tests18.html
html/syntax/parsing/html5lib_tests19.html
html/syntax/parsing/html5lib_tests2.html
html/syntax/parsing/html5lib_tests20.html
html/syntax/parsing/html5lib_tests21.html
html/syntax/parsing/html5lib_tests22.html
html/syntax/parsing/html5lib_tests23.html
html/syntax/parsing/html5lib_tests24.html
html/syntax/parsing/html5lib_tests25.html
html/syntax/parsing/html5lib_tests26.html
html/syntax/parsing/html5lib_tests3.html
html/syntax/parsing/html5lib_tests5.html
html/syntax/parsing/html5lib_tests6.html
html/syntax/parsing/html5lib_tests7.html
html/syntax/parsing/html5lib_tests8.html
html/syntax/parsing/html5lib_tests9.html
html/syntax/parsing/html5lib_tricky01.html
html/syntax/parsing/html5lib_webkit01.html
html/syntax/parsing/html5lib_webkit02.html