Move MediaQuery classes off BlinkGC heap

third_party/WebKit/Source/core/css/StyleRuleImport.h

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * (C) 2002-2003 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2002, 2006, 2008, 2012 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 18 matching lines @@
 namespace blink {
 
 class CSSStyleSheetResource;
 class MediaQuerySet;
 class StyleSheetContents;
 
 class StyleRuleImport : public StyleRuleBase {
   USING_PRE_FINALIZER(StyleRuleImport, dispose);
 
  public:
-  static StyleRuleImport* create(const String& href, MediaQuerySet*);
+  static StyleRuleImport* create(const String& href, RefPtr<MediaQuerySet>);
 
   ~StyleRuleImport();
 
   StyleSheetContents* parentStyleSheet() const { return m_parentStyleSheet; }
   void setParentStyleSheet(StyleSheetContents* sheet) {
     ASSERT(sheet);
     m_parentStyleSheet = sheet;
   }
   void clearParentStyleSheet() { m_parentStyleSheet = nullptr; }
 
@@ skipping 36 matching lines @@
 
    private:
     Member<StyleRuleImport> m_ownerRule;
   };
 
   void setCSSStyleSheet(const String& href,
                         const KURL& baseURL,
                         const String& charset,
                         const CSSStyleSheetResource*);
 
-  StyleRuleImport(const String& href, MediaQuerySet*);
+  StyleRuleImport(const String& href, RefPtr<MediaQuerySet>);
 
   void dispose();
 
   Member<StyleSheetContents> m_parentStyleSheet;
 
   Member<ImportedStyleSheetClient> m_styleSheetClient;
   String m_strHref;
-  Member<MediaQuerySet> m_mediaQueries;
+  RefPtr<MediaQuerySet> m_mediaQueries;
   Member<StyleSheetContents> m_styleSheet;
   Member<CSSStyleSheetResource> m_resource;
   bool m_loading;
 };
 
 DEFINE_STYLE_RULE_TYPE_CASTS(Import);
 
 }  // namespace blink
 
 #endif