Move and rename RenderPart to LayoutPart.

Source/core/rendering/RenderFrame.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Simon Hausmann <hausmann@kde.org>
  * Copyright (C) 2006, 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
  * 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
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  *
  */
 
 #ifndef RenderFrame_h
 #define RenderFrame_h
 
+#include "core/layout/LayoutPart.h"
 #include "core/rendering/RenderFrameSet.h"
-#include "core/rendering/RenderPart.h"
 
 namespace blink {
 
 class HTMLFrameElement;
 
-class RenderFrame final : public RenderPart {
+class RenderFrame final : public LayoutPart {
 public:
     explicit RenderFrame(HTMLFrameElement*);
 
     FrameEdgeInfo edgeInfo() const;
 
 private:
     virtual const char* renderName() const override { return "RenderFrame"; }
-    virtual bool isOfType(LayoutObjectType type) const override { return type == LayoutObjectFrame || RenderPart::isOfType(type); }
+    virtual bool isOfType(LayoutObjectType type) const override { return type == LayoutObjectFrame || LayoutPart::isOfType(type); }
 
     virtual void updateFromElement() override;
 };
 
 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(RenderFrame, isFrame());
 
 } // namespace blink
 
 #endif // RenderFrame_h