[WIP] do something :-)

Source/core/layout/line/InlineFlowBox.cpp

 /*
  * 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
  * 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
@@ skipping 21 matching lines @@
 #include "core/layout/LayoutRubyText.h"
 #include "core/layout/LayoutView.h"
 #include "core/layout/api/LineLayoutBox.h"
 #include "core/layout/line/GlyphOverflow.h"
 #include "core/layout/line/InlineTextBox.h"
 #include "core/layout/line/RootInlineBox.h"
 #include "core/paint/BoxPainter.h"
 #include "core/paint/InlineFlowBoxPainter.h"
 #include "core/style/ShadowList.h"
 #include "platform/fonts/Font.h"
+#include "wtf/SizeAssertions.h"
 
 #include <math.h>
 
 namespace blink {
 
-struct SameSizeAsInlineFlowBox : public InlineBox {
-    void* pointers[5];
-    uint32_t bitfields : 23;
-};
-
-static_assert(sizeof(InlineFlowBox) == sizeof(SameSizeAsInlineFlowBox), "InlineFlowBox should stay small");
+ASSERT_SIZE(InlineFlowBox, sizeof(InlineBox) + 24, sizeof(InlineBox) + 48);
 
 #if ENABLE(ASSERT)
 
 InlineFlowBox::~InlineFlowBox()
 {
     if (!m_hasBadChildList)
         for (InlineBox* child = firstChild(); child; child = child->nextOnLine())
             child->setHasBadParent();
 }
 
@@ skipping 1246 matching lines @@
         ASSERT(child->prevOnLine() == prev);
         prev = child;
     }
     ASSERT(prev == m_lastChild);
 #endif
 }
 
 #endif
 
 } // namespace blink