Add support for new CSS ::slotted() pseudo element

third_party/WebKit/Source/core/css/RuleSet.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 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 244 matching lines @@
 
         if (rule->isStyleRule()) {
             StyleRule* styleRule = toStyleRule(rule);
 
             const CSSSelectorList& selectorList = styleRule->selectorList();
             for (size_t selectorIndex = 0; selectorIndex != kNotFound; selectorIndex = selectorList.indexOfNextSelectorAfter(selectorIndex)) {
                 if (selectorList.selectorUsesDeepCombinatorOrShadowPseudo(selectorIndex)) {
                     m_deepCombinatorOrShadowPseudoRules.append(MinimalRuleData(styleRule, selectorIndex, addRuleFlags));
                 } else if (selectorList.selectorHasShadowDistributed(selectorIndex)) {
                     m_shadowDistributedRules.append(MinimalRuleData(styleRule, selectorIndex, addRuleFlags));
+                } else if (selectorList.selectorHasShadowSlotted(selectorIndex)) {
+                    m_shadowSlottedRules.append(MinimalRuleData(styleRule, selectorIndex, addRuleFlags));
                 } else {
                     addRule(styleRule, selectorIndex, addRuleFlags);
                 }
             }
         } else if (rule->isPageRule()) {
             addPageRule(toStyleRulePage(rule));
         } else if (rule->isMediaRule()) {
             StyleRuleMedia* mediaRule = toStyleRuleMedia(rule);
             if ((!mediaRule->mediaQueries() || medium.eval(mediaRule->mediaQueries(), &m_viewportDependentMediaQueryResults)))
                 addChildRules(mediaRule->childRules(), medium, addRuleFlags);
@@ skipping 60 matching lines @@
     m_cuePseudoRules.shrinkToFit();
     m_focusPseudoClassRules.shrinkToFit();
     m_universalRules.shrinkToFit();
     m_shadowHostRules.shrinkToFit();
     m_pageRules.shrinkToFit();
     m_viewportRules.shrinkToFit();
     m_fontFaceRules.shrinkToFit();
     m_keyframesRules.shrinkToFit();
     m_deepCombinatorOrShadowPseudoRules.shrinkToFit();
     m_shadowDistributedRules.shrinkToFit();
+    m_shadowSlottedRules.shrinkToFit();
 }
 
 DEFINE_TRACE(MinimalRuleData)
 {
     visitor->trace(m_rule);
 }
 
 DEFINE_TRACE(RuleData)
 {
     visitor->trace(m_rule);
@@ skipping 21 matching lines @@
     visitor->trace(m_focusPseudoClassRules);
     visitor->trace(m_universalRules);
     visitor->trace(m_shadowHostRules);
     visitor->trace(m_features);
     visitor->trace(m_pageRules);
     visitor->trace(m_viewportRules);
     visitor->trace(m_fontFaceRules);
     visitor->trace(m_keyframesRules);
     visitor->trace(m_deepCombinatorOrShadowPseudoRules);
     visitor->trace(m_shadowDistributedRules);
+    visitor->trace(m_shadowSlottedRules);
     visitor->trace(m_viewportDependentMediaQueryResults);
     visitor->trace(m_pendingRules);
 #ifndef NDEBUG
     visitor->trace(m_allRules);
 #endif
 #endif
 }
 
 #ifndef NDEBUG
 void RuleSet::show() const
 {
     for (const auto& rule: m_allRules)
         rule.selector().show();
 }
 #endif
 
 } // namespace blink