Merge RenderWidget into single subclass, RenderPart

Source/core/rendering/RenderWidget.h

Index: Source/core/rendering/RenderWidget.h
diff --git a/Source/core/rendering/RenderWidget.h b/Source/core/rendering/RenderWidget.h
deleted file mode 100644
index 0f43af6f1e846b07fcc73d4367070277b670e932..0000000000000000000000000000000000000000
--- a/Source/core/rendering/RenderWidget.h
+++ /dev/null
@@ -1,72 +0,0 @@
-/*
- * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
- * Copyright (C) 2004, 2005, 2006, 2009, 2010 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 RenderWidget_h
-#define RenderWidget_h
-
-#include "core/rendering/RenderReplaced.h"
-#include "platform/Widget.h"
-
-namespace blink {
-
-class RenderWidget : public RenderReplaced {
-public:
-    virtual ~RenderWidget();
-
-    Widget* widget() const;
-
-    void updateOnWidgetChange();
-    void updateWidgetPosition();
-    void widgetPositionsUpdated();
-
-#if !ENABLE(OILPAN)
-    void ref() { ++m_refCount; }
-    void deref();
-#endif
-    virtual bool isWidget() const override final { return true; }
-    bool updateWidgetGeometry();
-
-protected:
-    explicit RenderWidget(Element*);
-
-    virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle) override final;
-    virtual void layout() override;
-    virtual void paint(PaintInfo&, const LayoutPoint&) override;
-    virtual CursorDirective getCursor(const LayoutPoint&, Cursor&) const override final;
-    virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, const HitTestLocation& locationInContainer, const LayoutPoint& accumulatedOffset, HitTestAction) override;
-
-    virtual void paintContents(PaintInfo&, const LayoutPoint&);
-
-private:
-    virtual void willBeDestroyed() override final;
-    virtual void destroy() override final;
-
-    bool setWidgetGeometry(const LayoutRect&);
-#if !ENABLE(OILPAN)
-    int m_refCount;
-#endif
-};
-
-DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderWidget, isWidget());
-
-} // namespace blink
-
-#endif // RenderWidget_h