Matching part for >>> (shadow-piercing descendant combinator).

third_party/WebKit/Source/core/css/CSSSelector.cpp

 /*
  * Copyright (C) 1999-2003 Lars Knoll (knoll@kde.org)
  *               1999 Waldo Bastian (bastian@kde.org)
  *               2001 Andreas Schlapbach (schlpbch@iam.unibe.ch)
  *               2001-2003 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2002, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights
  * reserved.
  * Copyright (C) 2008 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2010 Google Inc. All rights reserved.
  *
@@ skipping 953 matching lines @@
       [](const CSSSelector& selector) -> bool {
         return selector.getPseudoType() == CSSSelector::PseudoSlotted;
       },
       *this);
 }
 
 bool CSSSelector::hasDeepCombinatorOrShadowPseudo() const {
   return forEachTagHistory(
       [](const CSSSelector& selector) -> bool {
         return selector.relation() == CSSSelector::ShadowDeep ||
+               selector.relation() == CSSSelector::ShadowPiercingDescendant ||
                selector.getPseudoType() == CSSSelector::PseudoShadow;
       },
       *this);
 }
 
 bool CSSSelector::needsUpdatedDistribution() const {
   return forEachTagHistory(
       [](const CSSSelector& selector) -> bool {
         return selector.relationIsAffectedByPseudoContent() ||
                selector.getPseudoType() == CSSSelector::PseudoSlotted ||
@@ skipping 19 matching lines @@
     if (count < nthBValue())
       return false;
     return (count - nthBValue()) % nthAValue() == 0;
   }
   if (count > nthBValue())
     return false;
   return (nthBValue() - count) % (-nthAValue()) == 0;
 }
 
 }  // namespace blink