*** DO NOT LAND *** Attempt to understand Regions complexity

Source/core/rendering/RenderNamedFlowFragment.h

Index: Source/core/rendering/RenderNamedFlowFragment.h
diff --git a/Source/core/rendering/RenderNamedFlowFragment.h b/Source/core/rendering/RenderNamedFlowFragment.h
deleted file mode 100644
index 79e4d7ceb63841d62e88555375b4c39b4d093e8c..0000000000000000000000000000000000000000
--- a/Source/core/rendering/RenderNamedFlowFragment.h
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@@ -1,74 +0,0 @@
-/*
- * Copyright (C) 2013 Adobe Systems Incorporated. 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 THE COPYRIGHT HOLDER "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 THE COPYRIGHT HOLDER 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 RenderNamedFlowFragment_h
-#define RenderNamedFlowFragment_h
-
-#include "core/rendering/RenderRegion.h"
-
-namespace WebCore {
-
-class Element;
-class RenderStyle;
-
-// RenderNamedFlowFragment represents a region that is responsible for the fragmentation of
-// the RenderNamedFlowThread content.
-//
-// A RenderNamedFlowFragment object is created as an anonymous child for a RenderBlockFlow object
-// that has a valid -webkit-flow-from property.
-//
-// This allows a non-replaced block to behave like a region if needed, following the CSSRegions specification:
-// http://dev.w3.org/csswg/css-regions/#the-flow-from-property.
-// list-item, table-caption, table-cell can become regions in addition to block | inline-block.
-
-class RenderNamedFlowFragment FINAL : public RenderRegion {
-public:
-    virtual ~RenderNamedFlowFragment();
-    static RenderNamedFlowFragment* createAnonymous(Document*);
-
-    void setStyleForNamedFlowFragment(const RenderStyle*);
-
-    virtual bool isRenderNamedFlowFragment() const OVERRIDE { return true; }
-    virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle) OVERRIDE;
-
-    virtual LayoutUnit maxPageLogicalHeight() const OVERRIDE;
-
-protected:
-    RenderNamedFlowFragment();
-
-private:
-    virtual bool shouldHaveAutoLogicalHeight() const OVERRIDE;
-    virtual const char* renderName() const OVERRIDE { return "RenderNamedFlowFragment"; }
-};
-
-DEFINE_RENDER_OBJECT_TYPE_CASTS(RenderNamedFlowFragment, isRenderNamedFlowFragment());
-
-}
-
-#endif // RenderNamedFlowFragment_h