Only match style from element's TreeScope for normal rules.

Source/core/css/TreeBoundaryCrossingRules.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 65 matching lines @@
     ASSERT(!collector.scopeContainsLastMatchedElement());
     collector.setScopeContainsLastMatchedElement(true);
     for (const auto& scope : m_scopingNodes) {
         const ContainerNode* scopingNode = toContainerNode(scope);
         CSSStyleSheetRuleSubSet* ruleSubSet = m_treeBoundaryCrossingRuleSetMap.get(scopingNode);
         bool isInnerTreeScope = element->treeScope().isInclusiveAncestorOf(scopingNode->treeScope());
 
         CascadeOrder cascadeOrder = isInnerTreeScope ? innerCascadeOrder : outerCascadeOrder;
         for (const auto& rules : *ruleSubSet) {
             MatchRequest request(rules->ruleSet.get(), includeEmptyRules, scopingNode, rules->parentStyleSheet, rules->parentIndex);
-            collector.collectMatchingRules(request, ruleRange, ignoreCascadeScope, cascadeOrder, true);
+            collector.collectMatchingRules(request, ruleRange, cascadeOrder, true);
         }
         ++innerCascadeOrder;
         --outerCascadeOrder;
     }
     collector.setScopeContainsLastMatchedElement(false);
 }
 
 void TreeBoundaryCrossingRules::reset(const ContainerNode* scopingNode)
 {
     m_treeBoundaryCrossingRuleSetMap.remove(scopingNode);
@@ skipping 19 matching lines @@
     visitor->trace(m_scopingNodes);
 #endif
 }
 
 void TreeBoundaryCrossingRules::RuleSubSet::trace(Visitor* visitor)
 {
     visitor->trace(ruleSet);
 }
 
 } // namespace blink