Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/core/css/CSSImportRule.h

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * (C) 2002-2003 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2002, 2006, 2008, 2012 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 15 matching lines @@
 #include "platform/heap/Handle.h"
 
 namespace blink {
 
 class MediaList;
 class StyleRuleImport;
 
 class CSSImportRule final : public CSSRule {
     DEFINE_WRAPPERTYPEINFO();
 public:
-    static PassRefPtrWillBeRawPtr<CSSImportRule> create(StyleRuleImport* rule, CSSStyleSheet* sheet)
+    static RawPtr<CSSImportRule> create(StyleRuleImport* rule, CSSStyleSheet* sheet)
     {
-        return adoptRefWillBeNoop(new CSSImportRule(rule, sheet));
+        return (new CSSImportRule(rule, sheet));
     }
 
     ~CSSImportRule() override;
 
     String cssText() const override;
     void reattach(StyleRuleBase*) override;
 
     String href() const;
     MediaList* media() const;
     CSSStyleSheet* styleSheet() const;
 
     DECLARE_VIRTUAL_TRACE();
 
 private:
     CSSImportRule(StyleRuleImport*, CSSStyleSheet*);
 
     CSSRule::Type type() const override { return IMPORT_RULE; }
 
-    RefPtrWillBeMember<StyleRuleImport> m_importRule;
-    mutable RefPtrWillBeMember<MediaList> m_mediaCSSOMWrapper;
-    mutable RefPtrWillBeMember<CSSStyleSheet> m_styleSheetCSSOMWrapper;
+    Member<StyleRuleImport> m_importRule;
+    mutable Member<MediaList> m_mediaCSSOMWrapper;
+    mutable Member<CSSStyleSheet> m_styleSheetCSSOMWrapper;
 };
 
 DEFINE_CSS_RULE_TYPE_CASTS(CSSImportRule, IMPORT_RULE);
 
 } // namespace blink
 
 #endif // CSSImportRule_h