Remove unused RuleSet flags.

Source/core/css/RuleSet.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 64 matching lines @@
     RuleData(StyleRule*, unsigned selectorIndex, unsigned position, AddRuleFlags);
 
     unsigned position() const { return m_position; }
     StyleRule* rule() const { return m_rule; }
     const CSSSelector& selector() const { return m_rule->selectorList().selectorAt(m_selectorIndex); }
     unsigned selectorIndex() const { return m_selectorIndex; }
 
     bool isLastInArray() const { return m_isLastInArray; }
     void setLastInArray(bool flag) { m_isLastInArray = flag; }
 
-    bool hasMultipartSelector() const { return m_hasMultipartSelector; }
-    bool hasRightmostSelectorMatchingHTMLBasedOnRuleHash() const { return m_hasRightmostSelectorMatchingHTMLBasedOnRuleHash; }
     bool containsUncommonAttributeSelector() const { return m_containsUncommonAttributeSelector; }
     unsigned specificity() const { return m_specificity; }
     unsigned linkMatchType() const { return m_linkMatchType; }
     bool hasDocumentSecurityOrigin() const { return m_hasDocumentSecurityOrigin; }
     PropertyWhitelistType propertyWhitelistType(bool isMatchingUARules = false) const { return isMatchingUARules ? PropertyWhitelistNone : static_cast<PropertyWhitelistType>(m_propertyWhitelistType); }
     // Try to balance between memory usage (there can be lots of RuleData objects) and good filtering performance.
     static const unsigned maximumIdentifierCount = 4;
     const unsigned* descendantSelectorIdentifierHashes() const { return m_descendantSelectorIdentifierHashes; }
 
     void trace(Visitor*);
 
 private:
     RawPtrWillBeMember<StyleRule> m_rule;
     unsigned m_selectorIndex : 12;
     unsigned m_isLastInArray : 1; // We store an array of RuleData objects in a primitive array.
     // This number was picked fairly arbitrarily. We can probably lower it if we need to.
     // Some simple testing showed <100,000 RuleData's on large sites.
     unsigned m_position : 18;
     unsigned m_specificity : 24;
-    unsigned m_hasMultipartSelector : 1;
-    unsigned m_hasRightmostSelectorMatchingHTMLBasedOnRuleHash : 1;
     unsigned m_containsUncommonAttributeSelector : 1;
     unsigned m_linkMatchType : 2; //  SelectorChecker::LinkMatchMask
     unsigned m_hasDocumentSecurityOrigin : 1;
     unsigned m_propertyWhitelistType : 2;
     // Use plain array instead of a Vector to minimize memory overhead.
     unsigned m_descendantSelectorIdentifierHashes[maximumIdentifierCount];
 };
 
 struct SameSizeAsRuleData {
     void* a;
@@ skipping 117 matching lines @@
     WillBeHeapVector<RuleData> m_allRules;
 #endif
 };
 
 } // namespace blink
 
 WTF_ALLOW_MOVE_AND_INIT_WITH_MEM_FUNCTIONS(blink::RuleData);
 WTF_ALLOW_MOVE_AND_INIT_WITH_MEM_FUNCTIONS(blink::MinimalRuleData);
 
 #endif // RuleSet_h