Rename rendering/RenderScrollbar* to layout/LayoutScrollbar*

Source/core/rendering/RenderScrollbarPart.h

-/*
- * Copyright (C) 2008 Apple Inc. All Rights Reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
- * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
- * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
- * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#ifndef RenderScrollbarPart_h
-#define RenderScrollbarPart_h
-
-#include "core/rendering/RenderBlock.h"
-#include "platform/scroll/ScrollTypes.h"
-
-namespace blink {
-
-class RenderScrollbar;
-
-class RenderScrollbarPart final : public RenderBlock {
-public:
-    static RenderScrollbarPart* createAnonymous(Document*, RenderScrollbar* = 0, ScrollbarPart = NoPart);
-
-    virtual ~RenderScrollbarPart();
-
-    virtual const char* renderName() const override { return "RenderScrollbarPart"; }
-
-    virtual LayerType layerTypeRequired() const override { return NoLayer; }
-
-    virtual void layout() override;
-
-    // Scrollbar parts needs to be rendered at device pixel boundaries.
-    virtual LayoutRectOutsets marginBoxOutsets() const override
-    {
-        ASSERT(isIntegerValue(RenderBlock::marginBoxOutsets().top()));
-        return RenderBlock::marginBoxOutsets();
-    }
-    virtual LayoutUnit marginTop() const override
-    {
-        ASSERT(isIntegerValue(RenderBlock::marginTop()));
-        return RenderBlock::marginTop();
-    }
-    virtual LayoutUnit marginBottom() const override
-    {
-        ASSERT(isIntegerValue(RenderBlock::marginBottom()));
-        return RenderBlock::marginBottom();
-    }
-    virtual LayoutUnit marginLeft() const override
-    {
-        ASSERT(isIntegerValue(RenderBlock::marginLeft()));
-        return RenderBlock::marginLeft();
-    }
-    virtual LayoutUnit marginRight() const override
-    {
-        ASSERT(isIntegerValue(RenderBlock::marginRight()));
-        return RenderBlock::marginRight();
-    }
-
-    virtual bool isOfType(LayoutObjectType type) const override { return type == LayoutObjectRenderScrollbarPart || RenderBlock::isOfType(type); }
-    LayoutObject* rendererOwningScrollbar() const;
-
-protected:
-    virtual void styleWillChange(StyleDifference, const LayoutStyle& newStyle) override;
-    virtual void styleDidChange(StyleDifference, const LayoutStyle* oldStyle) override;
-    virtual void imageChanged(WrappedImagePtr, const IntRect* = 0) override;
-
-private:
-    RenderScrollbarPart(RenderScrollbar*, ScrollbarPart);
-
-    virtual void computePreferredLogicalWidths() override;
-
-    // Have all padding getters return 0. The important point here is to avoid resolving percents
-    // against the containing block, since scroll bar corners don't always have one (so it would
-    // crash). Scroll bar corners are not actually laid out, and they don't have child content, so
-    // what we return here doesn't really matter.
-    virtual LayoutUnit paddingTop() const override { return LayoutUnit(); }
-    virtual LayoutUnit paddingBottom() const override { return LayoutUnit(); }
-    virtual LayoutUnit paddingLeft() const override { return LayoutUnit(); }
-    virtual LayoutUnit paddingRight() const override { return LayoutUnit(); }
-    virtual LayoutUnit paddingBefore() const override { return LayoutUnit(); }
-    virtual LayoutUnit paddingAfter() const override { return LayoutUnit(); }
-    virtual LayoutUnit paddingStart() const override { return LayoutUnit(); }
-    virtual LayoutUnit paddingEnd() const override { return LayoutUnit(); }
-
-    void layoutHorizontalPart();
-    void layoutVerticalPart();
-
-    void computeScrollbarWidth();
-    void computeScrollbarHeight();
-
-    RenderScrollbar* m_scrollbar;
-    ScrollbarPart m_part;
-};
-
-DEFINE_LAYOUT_OBJECT_TYPE_CASTS(RenderScrollbarPart, isRenderScrollbarPart());
-
-} // namespace blink
-
-#endif // RenderScrollbarPart_h