Add a first pass of a class descendant invalidator, and a containing RuleSetAnalyzer

Source/core/dom/shadow/SelectRuleFeatureSet.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 36 matching lines @@
 }
 
 void SelectRuleFeatureSet::clear()
 {
     m_cssRuleFeatureSet.clear();
     m_featureFlags = 0;
 }
 
 void SelectRuleFeatureSet::collectFeaturesFromSelector(const CSSSelector* selector)
 {
-    m_cssRuleFeatureSet.collectFeaturesFromSelector(selector);
+    m_cssRuleFeatureSet.collectFeaturesFromSelector(selector, 0);
 
     switch (selector->pseudoType()) {
     case CSSSelector::PseudoChecked:
         setSelectRuleFeature(AffectedSelectorChecked);
         break;
     case CSSSelector::PseudoEnabled:
         setSelectRuleFeature(AffectedSelectorEnabled);
         break;
     case CSSSelector::PseudoDisabled:
         setSelectRuleFeature(AffectedSelectorDisabled);
@@ skipping 10 matching lines @@
     case CSSSelector::PseudoVisited:
         setSelectRuleFeature(AffectedSelectorVisited);
         break;
     default:
         break;
     }
 }
 
 }