Perhaps GetContentEditableState should use FindAttrValueIn, like GetContentEditableValue used to.
Bug 1925078 Comment 5 Edit History
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Perhaps GetContentEditableState should use FindAttrValueIn, like GetContentEditableValue used to. Another option might be to use ElementState flags or nsINode flags
Perhaps GetContentEditableState should use FindAttrValueIn, like GetContentEditableValue used to. Maybe the param for FindAttrValueIn could depend on the plaintext-only pref? (Another option might be to use ElementState flags or nsINode flags.)