Oilpan: Remove most WillBe types from the code base

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

 /*
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  *
  * 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.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 14 matching lines @@
 #include "core/html/LabelableElement.h"
 
 namespace blink {
 
 class MeterValueElement;
 class LayoutMeter;
 
 class CORE_EXPORT HTMLMeterElement final : public LabelableElement {
     DEFINE_WRAPPERTYPEINFO();
 public:
-    static PassRefPtrWillBeRawPtr<HTMLMeterElement> create(Document&);
+    static RawPtr<HTMLMeterElement> create(Document&);
 
     enum GaugeRegion {
         GaugeRegionOptimum,
         GaugeRegionSuboptimal,
         GaugeRegionEvenLessGood
     };
 
     double value() const;
     void setValue(double);
 
@@ skipping 28 matching lines @@
     LayoutMeter* layoutMeter() const;
 
     bool supportLabels() const override { return true; }
 
     LayoutObject* createLayoutObject(const ComputedStyle&) override;
     void parseAttribute(const QualifiedName&, const AtomicString&, const AtomicString&) override;
 
     void didElementStateChange();
     void didAddUserAgentShadowRoot(ShadowRoot&) override;
 
-    RefPtrWillBeMember<MeterValueElement> m_value;
+    Member<MeterValueElement> m_value;
 };
 
 } // namespace blink
 
 #endif // HTMLMeterElement_h