Use invalidation sets for fullscreen pseudos.

third_party/WebKit/Source/core/css/resolver/StyleResolver.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 145 matching lines @@
     }
 
     RuleFeatureSet& ruleFeatureSet()
     {
         return m_features;
     }
 
     StyleSharingList& styleSharingList();
 
     bool hasRulesForId(const AtomicString&) const;
+    bool hasFullscreenUAStyle() const { return m_hasFullscreenUAStyle; }
 
     void addToStyleSharingList(Element&);
     void clearStyleSharingList();
 
     void increaseStyleSharingDepth() { ++m_styleSharingDepth; }
     void decreaseStyleSharingDepth() { --m_styleSharingDepth; }
 
     PassRefPtrWillBeRawPtr<PseudoElement> createPseudoElementIfNeeded(Element& parent, PseudoId);
 
     DECLARE_TRACE();
@@ skipping 64 matching lines @@
     // between various parts of machinery smells wrong. This needs to be better somehow.
     RuleFeatureSet m_features;
     OwnPtrWillBeMember<RuleSet> m_siblingRuleSet;
     OwnPtrWillBeMember<RuleSet> m_uncommonAttributeRuleSet;
     OwnPtrWillBeMember<RuleSet> m_watchedSelectorsRules;
 
     DocumentOrderedList m_treeBoundaryCrossingScopes;
 
     bool m_needCollectFeatures;
     bool m_printMediaType;
+    bool m_hasFullscreenUAStyle = false;
 
     unsigned m_styleSharingDepth;
     WillBeHeapVector<OwnPtrWillBeMember<StyleSharingList>, styleSharingMaxDepth> m_styleSharingLists;
 };
 
 } // namespace blink
 
 #endif // StyleResolver_h