Oilpan: Change references to MutableStylePropertySet to transition types.

Source/core/css/resolver/ViewportStyleResolver.h

 /*
  * Copyright (C) 2012 Intel Corporation. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1. Redistributions of source code must retain the above
  *    copyright notice, this list of conditions and the following
  *    disclaimer.
@@ skipping 24 matching lines @@
 #include "platform/Length.h"
 #include "wtf/RefCounted.h"
 #include "wtf/RefPtr.h"
 
 namespace WebCore {
 
 class Document;
 class MutableStylePropertySet;
 class StyleRuleViewport;
 
-class ViewportStyleResolver : public RefCounted<ViewportStyleResolver> {
+class ViewportStyleResolver : public RefCountedWillBeGarbageCollected<ViewportStyleResolver> {
+    DECLARE_EMPTY_DESTRUCTOR_WILL_BE_REMOVED(ViewportStyleResolver);
 public:
-    static PassRefPtr<ViewportStyleResolver> create(Document* document)
+    static PassRefPtrWillBeRawPtr<ViewportStyleResolver> create(Document* document)
     {
-        return adoptRef(new ViewportStyleResolver(document));
+        return adoptRefWillBeNoop(new ViewportStyleResolver(document));
     }
 
-    ~ViewportStyleResolver();
-
     enum Origin { UserAgentOrigin, AuthorOrigin };
 
     void collectViewportRules(RuleSet*, Origin);
 
     void clearDocument();
     void resolve();
 
+    void trace(Visitor*);
+
 private:
     explicit ViewportStyleResolver(Document*);
 
     void addViewportRule(StyleRuleViewport*, Origin);
 
     float viewportArgumentValue(CSSPropertyID) const;
     Length viewportLengthValue(CSSPropertyID) const;
 
     Document* m_document;

[haraken, 2014/03/19 10:26:23]

This raw pointer is safe since it's cleared in clearDocument().

[wibling-chromium, 2014/03/19 10:33:19]

Yes, that was my assessment as well.

-    RefPtr<MutableStylePropertySet> m_propertySet;
+    RefPtrWillBeMember<MutableStylePropertySet> m_propertySet;
     bool m_hasAuthorStyle;
 };
 
 } // namespace WebCore
 
 #endif // ViewportStyleResolver_h