Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/core/svg/SVGAnimatedHref.h

 // Copyright 2016 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 SVGAnimatedHref_h
 #define SVGAnimatedHref_h
 
 #include "core/svg/SVGAnimatedString.h"
 
 namespace blink {
 
 // This is an "access wrapper" for the 'href' attribute. The object
 // itself holds the value for 'href' in the null/default NS and wraps
 // one for 'href' in the XLink NS. Both objects are added to an
 // SVGElement's property map and hence any updates/synchronization/etc
 // via the "attribute DOM" (setAttribute and friends) will operate on
 // the independent objects, while users of an 'href' value will be
 // using this interface (which essentially just selects either itself
 // or the wrapped object and forwards the operation to it.)
 class SVGAnimatedHref final : public SVGAnimatedString {
 public:
-    static PassRefPtrWillBeRawPtr<SVGAnimatedHref> create(SVGElement* contextElement);
+    static RawPtr<SVGAnimatedHref> create(SVGElement* contextElement);
 
     SVGString* currentValue();
     const SVGString* currentValue() const;
 
     String baseVal() override;
     void setBaseVal(const String&, ExceptionState&) override;
     String animVal() override;
 
     bool isSpecified() const { return SVGAnimatedString::isSpecified() || m_xlinkHref->isSpecified(); }
 
     static bool isKnownAttribute(const QualifiedName&);
     void addToPropertyMap(SVGElement*);
 
     DECLARE_VIRTUAL_TRACE();
 
 private:
     explicit SVGAnimatedHref(SVGElement* contextElement);
 
     SVGAnimatedString* backingString();
     const SVGAnimatedString* backingString() const;
     bool useXLink() const;
 
-    RefPtrWillBeMember<SVGAnimatedString> m_xlinkHref;
+    Member<SVGAnimatedString> m_xlinkHref;
 };
 
 } // namespace blink
 
 #endif // SVGAnimatedHref_h