[WIP] do something :-)

Source/core/layout/LayoutTableCell.cpp

 /*
  * Copyright (C) 1997 Martin Jones (mjones@kde.org)
  *           (C) 1997 Torben Weis (weis@kde.org)
  *           (C) 1998 Waldo Bastian (bastian@kde.org)
  *           (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * 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
@@ skipping 18 matching lines @@
 #include "core/css/StylePropertySet.h"
 #include "core/html/HTMLTableCellElement.h"
 #include "core/layout/LayoutAnalyzer.h"
 #include "core/layout/LayoutTableCol.h"
 #include "core/layout/LayoutView.h"
 #include "core/layout/SubtreeLayoutScope.h"
 #include "core/paint/TableCellPainter.h"
 #include "core/style/CollapsedBorderValue.h"
 #include "platform/geometry/FloatQuad.h"
 #include "platform/geometry/TransformState.h"
+#include "wtf/SizeAssertions.h"
 
 namespace blink {
 
 using namespace HTMLNames;
 
-struct SameSizeAsLayoutTableCell : public LayoutBlockFlow {
-    unsigned bitfields;
-    int paddings[2];
-};
-
-static_assert(sizeof(LayoutTableCell) == sizeof(SameSizeAsLayoutTableCell), "LayoutTableCell should stay small");
-static_assert(sizeof(CollapsedBorderValue) == 8, "CollapsedBorderValue should stay small");
+ASSERT_SIZE(LayoutTableCell, sizeof(LayoutBlockFlow) + 12, sizeof(LayoutBlockFlow) + 16);
+ASSERT_SIZE(CollapsedBorderValue, 8, 8);
 
 LayoutTableCell::LayoutTableCell(Element* element)
     : LayoutBlockFlow(element)
     , m_column(unsetColumnIndex)
     , m_cellWidthChanged(false)
     , m_intrinsicPaddingBefore(0)
     , m_intrinsicPaddingAfter(0)
 {
     // We only update the flags when notified of DOM changes in colSpanOrRowSpanChanged()
     // so we need to set their initial values here in case something asks for colSpan()/rowSpan() before then.
@@ skipping 970 matching lines @@
 
 LayoutTableCell* LayoutTableCell::createAnonymousWithParent(const LayoutObject* parent)
 {
     LayoutTableCell* newCell = LayoutTableCell::createAnonymous(&parent->document());
     RefPtr<ComputedStyle> newStyle = ComputedStyle::createAnonymousStyleWithDisplay(parent->styleRef(), TABLE_CELL);
     newCell->setStyle(newStyle.release());
     return newCell;
 }
 
 } // namespace blink