Oilpan: move custom element objects to the heap.

Source/core/dom/custom/CustomElementRegistrationContext.h

 /*
  * Copyright (C) 2013 Google Inc. 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.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 31 matching lines @@
 #include "wtf/text/AtomicString.h"
 
 namespace WebCore {
 
 class CustomElementConstructorBuilder;
 class CustomElementDefinition;
 class Document;
 class Element;
 class ExceptionState;
 
-class CustomElementRegistrationContext : public RefCounted<CustomElementRegistrationContext> {
+class CustomElementRegistrationContext FINAL : public RefCountedWillBeGarbageCollectedFinalized<CustomElementRegistrationContext> {
 public:
-    static PassRefPtr<CustomElementRegistrationContext> create();
+    static PassRefPtrWillBeRawPtr<CustomElementRegistrationContext> create();
 
     ~CustomElementRegistrationContext() { }
 
     // Definitions
     void registerElement(Document*, CustomElementConstructorBuilder*, const AtomicString& type, CustomElement::NameSet validNames, ExceptionState&);
 
     PassRefPtrWillBeRawPtr<Element> createCustomTagElement(Document&, const QualifiedName&);
     static void setIsAttributeAndTypeExtension(Element*, const AtomicString& type);
     static void setTypeExtension(Element*, const AtomicString& type);
 
     void resolve(Element*, const CustomElementDescriptor&);
 
+    void trace(Visitor*);
+
 protected:
     CustomElementRegistrationContext() { }
 
     // Instance creation
     void didGiveTypeExtension(Element*, const AtomicString& type);
 
 private:
     void resolveOrScheduleResolution(Element*, const AtomicString& typeExtension);
 
     CustomElementRegistry m_registry;
 
     // Element creation
-    CustomElementUpgradeCandidateMap m_candidates;
+    OwnPtrWillBeMember<CustomElementUpgradeCandidateMap> m_candidates;
 };
 
 }
 
 #endif // CustomElementRegistrationContext_h