Oilpan: Remove most WillBe types from the code base

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

 /*
  * Copyright (c) 2010 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 20 matching lines @@
 #ifndef HTMLOutputElement_h
 #define HTMLOutputElement_h
 
 #include "core/dom/DOMSettableTokenList.h"
 #include "core/html/HTMLFormControlElement.h"
 
 namespace blink {
 
 class CORE_EXPORT HTMLOutputElement final : public HTMLFormControlElement, private DOMSettableTokenListObserver {
     DEFINE_WRAPPERTYPEINFO();
-    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(HTMLOutputElement);
+    USING_GARBAGE_COLLECTED_MIXIN(HTMLOutputElement);
 public:
-    static PassRefPtrWillBeRawPtr<HTMLOutputElement> create(Document&, HTMLFormElement*);
+    static RawPtr<HTMLOutputElement> create(Document&, HTMLFormElement*);
     ~HTMLOutputElement() override;
 
     bool willValidate() const override { return false; }
 
     String value() const;
     void setValue(const String&);
     String defaultValue() const;
     void setDefaultValue(const String&);
     void setFor(const AtomicString&);
     DOMSettableTokenList* htmlFor() const;
@@ skipping 10 matching lines @@
     bool isEnumeratable() const override { return true; }
     bool supportLabels() const override { return true; }
     bool supportsFocus() const override;
     void childrenChanged(const ChildrenChange&) override;
     void resetImpl() override;
 
     void valueWasSet() final;
 
     bool m_isDefaultValueMode;
     String m_defaultValue;
-    RefPtrWillBeMember<DOMSettableTokenList> m_tokens;
+    Member<DOMSettableTokenList> m_tokens;
 };
 
 } // namespace blink
 
 #endif // HTMLOutputElement_h