Get rid of TreeBoundaryCrossingRules.

Source/core/css/resolver/ScopedStyleResolver.h

Index: Source/core/css/resolver/ScopedStyleResolver.h
diff --git a/Source/core/css/resolver/ScopedStyleResolver.h b/Source/core/css/resolver/ScopedStyleResolver.h
index a8c91cd62e658ae79f075210b60f1609fbb28979..e8c88040cb191a4ae6dcc65a42c4638df445f6f9 100644
--- a/Source/core/css/resolver/ScopedStyleResolver.h
+++ b/Source/core/css/resolver/ScopedStyleResolver.h
@@ -42,10 +42,12 @@ class StyleSheetContents;
 class ViewportStyleResolver;
 
 // This class selects a ComputedStyle for a given element based on a collection of stylesheets.
-class ScopedStyleResolver final : public NoBaseWillBeGarbageCollected<ScopedStyleResolver> {
+class ScopedStyleResolver final : public NoBaseWillBeGarbageCollectedFinalized<ScopedStyleResolver> {
     WTF_MAKE_NONCOPYABLE(ScopedStyleResolver);
     WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED(ScopedStyleResolver);
 public:
+    ~ScopedStyleResolver();
+
     static PassOwnPtrWillBeRawPtr<ScopedStyleResolver> create(TreeScope& scope)
     {
         return adoptPtrWillBeNoop(new ScopedStyleResolver(scope));
@@ -59,14 +61,16 @@ public:
     StyleRuleKeyframes* keyframeStylesForAnimation(const StringImpl* animationName);
 
     void appendCSSStyleSheet(CSSStyleSheet&, const MediaQueryEvaluator&);
-    void collectMatchingAuthorRules(ElementRuleCollector&, bool includeEmptyRules, CascadeOrder = ignoreCascadeOrder);
-    void collectMatchingShadowHostRules(ElementRuleCollector&, bool includeEmptyRules, CascadeOrder = ignoreCascadeOrder);
-    void collectMatchingTreeBoundaryCrossingRules(ElementRuleCollector&, bool includeEmptyRules, CascadeOrder);
+    void collectMatchingAuthorRules(ElementRuleCollector&, bool includeEmptyRules);
+    void collectMatchingShadowHostRules(ElementRuleCollector&, bool includeEmptyRules);
+    void collectMatchingTreeBoundaryCrossingRules(ElementRuleCollector&, bool includeEmptyRules);
     void matchPageRules(PageRuleCollector&);
     void collectFeaturesTo(RuleFeatureSet&, HashSet<const StyleSheetContents*>& visitedSharedStyleSheetContents) const;
     void resetAuthorStyle();
     void collectViewportRulesTo(ViewportStyleResolver*) const;
 
+    bool hasTreeBoundaryCrossingRules() const { return m_treeBoundaryCrossingRuleSet; }
+
     DECLARE_TRACE();
 
 private: