Oilpan: Change references to MutableStylePropertySet to transition types.

Source/core/css/resolver/ViewportStyleResolver.h

Index: Source/core/css/resolver/ViewportStyleResolver.h
diff --git a/Source/core/css/resolver/ViewportStyleResolver.h b/Source/core/css/resolver/ViewportStyleResolver.h
index 30b663f2b18c11945f5dd2da2523a9e6c184e740..a6c4e010ad7e13e65c5659f67cb6b162cb8f7185 100644
--- a/Source/core/css/resolver/ViewportStyleResolver.h
+++ b/Source/core/css/resolver/ViewportStyleResolver.h
@@ -42,15 +42,14 @@ 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);
@@ -58,6 +57,8 @@ public:
     void clearDocument();
     void resolve();
 
+    void trace(Visitor*);
+
 private:
     explicit ViewportStyleResolver(Document*);
 
@@ -67,7 +68,7 @@ private:
     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;
 };