Use invalidation sets for fullscreen pseudos.

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

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2004-2005 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2006, 2007 Nicholas Shanks (webkit@nickshanks.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Alexey Proskuryakov <ap@webkit.org>
  * Copyright (C) 2007, 2008 Eric Seidel <eric@webkit.org>
  * Copyright (C) 2008, 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
  * Copyright (C) Research In Motion Limited 2011. All rights reserved.
@@ skipping 312 matching lines @@
     return ruleSet.release();
 }
 
 void StyleResolver::collectFeatures()
 {
     m_features.clear();
     // Collect all ids and rules using sibling selectors (:first-child and similar)
     // in the current set of stylesheets. Style sharing code uses this information to reject
     // sharing candidates.
     CSSDefaultStyleSheets& defaultStyleSheets = CSSDefaultStyleSheets::instance();
-    if (defaultStyleSheets.defaultStyle())
+    if (defaultStyleSheets.defaultStyle()) {
         m_features.add(defaultStyleSheets.defaultStyle()->features());
+        m_hasFullscreenUAStyle = defaultStyleSheets.fullscreenStyleSheet();
+    }
 
     if (document().isViewSource())
         m_features.add(defaultStyleSheets.defaultViewSourceStyle()->features());
 
     if (m_watchedSelectorsRules)
         m_features.add(m_watchedSelectorsRules->features());
 
     document().styleEngine().collectScopedStyleFeaturesTo(m_features);
 
     m_siblingRuleSet = makeRuleSet(m_features.siblingRules);
@@ skipping 1267 matching lines @@
     visitor->trace(m_uncommonAttributeRuleSet);
     visitor->trace(m_watchedSelectorsRules);
     visitor->trace(m_treeBoundaryCrossingScopes);
     visitor->trace(m_styleSharingLists);
     visitor->trace(m_pendingStyleSheets);
     visitor->trace(m_document);
 #endif
 }
 
 } // namespace blink