Move MediaQueryEvaluator from StyleResolver to StyleEngine.

third_party/WebKit/Source/core/css/resolver/StyleResolver.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.
  *
@@ skipping 158 matching lines @@
   StyleSharingList& styleSharingList();
 
   void addToStyleSharingList(Element&);
   void clearStyleSharingList();
 
   void increaseStyleSharingDepth() { ++m_styleSharingDepth; }
   void decreaseStyleSharingDepth() { --m_styleSharingDepth; }
 
   PseudoElement* createPseudoElementIfNeeded(Element& parent, PseudoId);
 
+  void setRuleUsageTracker(StyleRuleUsageTracker*);
+  void updateMediaType();
+
   DECLARE_TRACE();
 
-  void setRuleUsageTracker(StyleRuleUsageTracker*);
-
  private:
   explicit StyleResolver(Document&);
 
   PassRefPtr<ComputedStyle> initialStyleForElement();
 
   // FIXME: This should probably go away, folded into FontBuilder.
   void updateFont(StyleResolverState&);
 
   void addMatchedRulesToTracker(const ElementRuleCollector&);
 
@@ skipping 123 matching lines @@
 
   bool pseudoStyleForElementInternal(Element&,
                                      const PseudoStyleRequest&,
                                      const ComputedStyle* parentStyle,
                                      StyleResolverState&);
   bool hasAuthorBackground(const StyleResolverState&);
   bool hasAuthorBorder(const StyleResolverState&);
 
   PseudoElement* createPseudoElement(Element* parent, PseudoId);
 
-  Document& document() { return *m_document; }
+  Document& document() const { return *m_document; }
 
   static ComputedStyle* s_styleNotYetAvailable;
 
   MatchedPropertiesCache m_matchedPropertiesCache;
 
-  Member<MediaQueryEvaluator> m_medium;
   MediaQueryResultList m_viewportDependentMediaQueryResults;
   MediaQueryResultList m_deviceDependentMediaQueryResults;
 
   Member<Document> m_document;
   SelectorFilter m_selectorFilter;
 
   HeapListHashSet<Member<CSSStyleSheet>, 16> m_pendingStyleSheets;
 
   Member<StyleRuleUsageTracker> m_tracker;
 
-  bool m_printMediaType;
+  bool m_printMediaType = false;
 
-  unsigned m_styleSharingDepth;
+  unsigned m_styleSharingDepth = 0;
   HeapVector<Member<StyleSharingList>, styleSharingMaxDepth>
       m_styleSharingLists;
 };
 
 }  // namespace blink
 
 #endif  // StyleResolver_h