Remove more oilpan.

sky/engine/core/rendering/RenderSelectionInfo.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 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
@@ skipping 12 matching lines @@
  */
 
 #ifndef RenderSelectionInfo_h
 #define RenderSelectionInfo_h
 
 #include "core/rendering/RenderBox.h"
 #include "platform/geometry/IntRect.h"
 
 namespace blink {
 
-class RenderSelectionInfoBase : public DummyBase<RenderSelectionInfoBase> {
-    WTF_MAKE_NONCOPYABLE(RenderSelectionInfoBase); WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
+class RenderSelectionInfoBase {
+    WTF_MAKE_NONCOPYABLE(RenderSelectionInfoBase); WTF_MAKE_FAST_ALLOCATED;
 public:
     RenderSelectionInfoBase()
         : m_object(nullptr)
         , m_paintInvalidationContainer(nullptr)
         , m_state(RenderObject::SelectionNone)
     {
     }
 
     RenderSelectionInfoBase(RenderObject* o)
         : m_object(o)
@@ skipping 72 matching lines @@
     GapRects rects() const { return m_rects; }
 
 private:
     GapRects m_rects; // relative to paint invalidation container
 };
 
 } // namespace blink
 
 
 #endif // RenderSelectionInfo_h