Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/core/svg/SVGPatternElement.cpp

 /*
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 Nikolas Zimmermann <zimmermann@kde.org>
  * Copyright (C) 2004, 2005, 2006, 2007 Rob Buis <buis@kde.org>
  * Copyright (C) Research In Motion Limited 2010. 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 132 matching lines @@
         element->patternTransform()->currentValue()->concatenate(transform);
         attributes.setPatternTransform(transform);
     }
 
     if (!attributes.hasPatternContentElement() && ElementTraversal::firstWithin(*element))
         attributes.setPatternContentElement(element);
 }
 
 void SVGPatternElement::collectPatternAttributes(PatternAttributes& attributes) const
 {
-    WillBeHeapHashSet<RawPtrWillBeMember<const SVGPatternElement>> processedPatterns;
+    HeapHashSet<Member<const SVGPatternElement>> processedPatterns;
     const SVGPatternElement* current = this;
 
     while (true) {
         setPatternAttributes(current, attributes);
         processedPatterns.add(current);
 
         // Respect xlink:href, take attributes from referenced element
         Node* refNode = SVGURIReference::targetElementFromIRIString(current->hrefString(), treeScope());
 
         // Only consider attached SVG pattern elements.
@@ skipping 17 matching lines @@
 
 bool SVGPatternElement::selfHasRelativeLengths() const
 {
     return m_x->currentValue()->isRelative()
         || m_y->currentValue()->isRelative()
         || m_width->currentValue()->isRelative()
         || m_height->currentValue()->isRelative();
 }
 
 } // namespace blink