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            <b><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Rename setNeedsStyleRecalc to invalidateStyle"
   href="https://bugs.webkit.org/show_bug.cgi?id=163542#c8">Comment # 8</a>
              on <a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Rename setNeedsStyleRecalc to invalidateStyle"
   href="https://bugs.webkit.org/show_bug.cgi?id=163542">bug 163542</a>
              from <span class="vcard"><a class="email" href="mailto:koivisto&#64;iki.fi" title="Antti Koivisto &lt;koivisto&#64;iki.fi&gt;"> <span class="fn">Antti Koivisto</span></a>
</span></b>
        <pre>I went with 

namespace Style {

enum class Validity {
    Valid,
    ElementInvalid,
    SubtreeInvalid,
    SubtreeAndRenderersInvalid
};</pre>
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