Merge DOMSettableTokensList into DOMTokensList

third_party/WebKit/Source/core/html/RelList.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef RelList_h
 #define RelList_h
 
 #include "core/HTMLNames.h"
 #include "core/dom/DOMTokenList.h"
 #include "core/dom/Element.h"
 #include "core/dom/SpaceSplitString.h"
-#include "wtf/PassOwnPtr.h"
 
 namespace blink {
 
 class RelList final : public DOMTokenList {
 public:
-    static PassOwnPtrWillBeRawPtr<RelList> create(Element* element)
+    static PassRefPtrWillBeRawPtr<RelList> create(Element* element)
     {
-        return adoptPtrWillBeNoop(new RelList(element));
+        return adoptRefWillBeNoop(new RelList(element));
     }
 
-#if !ENABLE(OILPAN)
-    void ref() override;
-    void deref() override;
-#endif
-
     unsigned length() const override;
     const AtomicString item(unsigned index) const override;
 
     Element* element() override { return m_element; }
     void setRelValues(const AtomicString&);
 
     DECLARE_VIRTUAL_TRACE();
 
     using SupportedTokens = HashSet<AtomicString>;
 
 private:
     explicit RelList(Element*);
 
     bool containsInternal(const AtomicString&) const override;
 
     const AtomicString& value() const override { return m_element->getAttribute(HTMLNames::relAttr); }
     void setValue(const AtomicString& value) override { m_element->setAttribute(HTMLNames::relAttr, value); }
 
     bool validateTokenValue(const AtomicString&, ExceptionState&) const override;
 
     RawPtrWillBeMember<Element> m_element;
     SpaceSplitString m_relValues;
 };
 
 } // namespace blink
 
 #endif // RelList_h