Due to switch to asynchronous spellchecking, the following Mac's tests need to verify spelling markers asynchronously: LayoutTests/platform/mac/editing/spelling/autocorrection-at-beginning-of-word-1.html LayoutTests/platform/mac/editing/spelling/autocorrection-at-beginning-of-word-2.html LayoutTests/platform/mac/editing/spelling/autocorrection-blockquote-crash.html LayoutTests/platform/mac/editing/spelling/autocorrection-contraction.html LayoutTests/platform/mac/editing/spelling/autocorrection-delete.html LayoutTests/platform/mac/editing/spelling/autocorrection-in-textarea.html LayoutTests/platform/mac/editing/spelling/autocorrection-removing-underline-after-paste.html LayoutTests/platform/mac/editing/spelling/autocorrection-removing-underline.html LayoutTests/platform/mac/editing/spelling/autocorrection-respets-undo.html LayoutTests/platform/mac/editing/spelling/autocorrection-simple.html LayoutTests/platform/mac/editing/spelling/autocorrection-with-multi-line-text.html LayoutTests/platform/mac/editing/spelling/click-autocorrected-word.html LayoutTests/platform/mac/editing/spelling/delete-autocorrected-word-1.html LayoutTests/platform/mac/editing/spelling/delete-autocorrected-word-2.html LayoutTests/platform/mac/editing/spelling/delete-into-autocorrected-word.html LayoutTests/platform/mac/editing/spelling/delete-into-misspelled-word.html LayoutTests/platform/mac/editing/spelling/editing-multiple-words-with-markers.html LayoutTests/platform/mac/editing/spelling/editing-word-with-marker-1.html LayoutTests/platform/mac/editing/spelling/editing-word-with-marker-2.html LayoutTests/platform/mac/editing/spelling/forward-delete-into-autocorrected-word.html LayoutTests/platform/mac/editing/spelling/move-cursor-around-misspelled-word.html LayoutTests/platform/mac/editing/spelling/move-cursor-to-autocorrected-word.html LayoutTests/platform/mac/editing/spelling/move-cursor-to-beginning-of-autocorrected-word.html LayoutTests/platform/mac/editing/spelling/removing-underline-after-accepting-autocorrection-using-punctuation.html