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

Source/core/css/resolver/ScopedStyleResolver.cpp

Index: Source/core/css/resolver/ScopedStyleResolver.cpp
diff --git a/Source/core/css/resolver/ScopedStyleResolver.cpp b/Source/core/css/resolver/ScopedStyleResolver.cpp
index e3ccf263ce89cf6f8297b15c27800358541f6a8d..31fe576402f70a2c084cd9095d70bd5bbe9076e3 100644
--- a/Source/core/css/resolver/ScopedStyleResolver.cpp
+++ b/Source/core/css/resolver/ScopedStyleResolver.cpp
@@ -116,26 +116,26 @@ void ScopedStyleResolver::addKeyframeStyle(PassRefPtrWillBeRawPtr<StyleRuleKeyfr
     }
 }
 
-void ScopedStyleResolver::collectMatchingAuthorRules(ElementRuleCollector& collector, bool includeEmptyRules, CascadeScope cascadeScope, CascadeOrder cascadeOrder)
+void ScopedStyleResolver::collectMatchingAuthorRules(ElementRuleCollector& collector, bool includeEmptyRules, CascadeOrder cascadeOrder)
 {
     RuleRange ruleRange = collector.matchedResult().ranges.authorRuleRange();
     ASSERT(!collector.scopeContainsLastMatchedElement());
     collector.setScopeContainsLastMatchedElement(true);
     for (size_t i = 0; i < m_authorStyleSheets.size(); ++i) {
         MatchRequest matchRequest(&m_authorStyleSheets[i]->contents()->ruleSet(), includeEmptyRules, &m_scope->rootNode(), m_authorStyleSheets[i], i);
-        collector.collectMatchingRules(matchRequest, ruleRange, cascadeScope, cascadeOrder);
+        collector.collectMatchingRules(matchRequest, ruleRange, cascadeOrder);
     }
     collector.setScopeContainsLastMatchedElement(false);
 }
 
-void ScopedStyleResolver::collectMatchingShadowHostRules(ElementRuleCollector& collector, bool includeEmptyRules, CascadeScope cascadeScope, CascadeOrder cascadeOrder)
+void ScopedStyleResolver::collectMatchingShadowHostRules(ElementRuleCollector& collector, bool includeEmptyRules, CascadeOrder cascadeOrder)
 {
     RuleRange ruleRange = collector.matchedResult().ranges.authorRuleRange();
     ASSERT(!collector.scopeContainsLastMatchedElement());
     collector.setScopeContainsLastMatchedElement(true);
     for (size_t i = 0; i < m_authorStyleSheets.size(); ++i) {
         MatchRequest matchRequest(&m_authorStyleSheets[i]->contents()->ruleSet(), includeEmptyRules, &m_scope->rootNode(), m_authorStyleSheets[i], i);
-        collector.collectMatchingShadowHostRules(matchRequest, ruleRange, cascadeScope, cascadeOrder);
+        collector.collectMatchingShadowHostRules(matchRequest, ruleRange, cascadeOrder);
     }
     collector.setScopeContainsLastMatchedElement(false);
 }