Remove webkit-margin-collapse

sky/engine/core/rendering/style/RenderStyle.cpp

 /*
  * Copyright (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2011 Adobe Systems Incorporated. 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.
  *
@@ skipping 301 matching lines @@
     if (surround.get() != other.surround.get()) {
         // If our border widths change, then we need to layout. Other changes to borders only necessitate a paint invalidation.
         if (borderLeftWidth() != other.borderLeftWidth()
             || borderTopWidth() != other.borderTopWidth()
             || borderBottomWidth() != other.borderBottomWidth()
             || borderRightWidth() != other.borderRightWidth())
             return true;
     }
 
     if (rareNonInheritedData.get() != other.rareNonInheritedData.get()) {
-        if (rareNonInheritedData->marginBeforeCollapse != other.rareNonInheritedData->marginBeforeCollapse
-            || rareNonInheritedData->marginAfterCollapse != other.rareNonInheritedData->marginAfterCollapse
-            || rareNonInheritedData->textOverflow != other.rareNonInheritedData->textOverflow
+        if (rareNonInheritedData->textOverflow != other.rareNonInheritedData->textOverflow
             || rareNonInheritedData->m_wrapFlow != other.rareNonInheritedData->m_wrapFlow
             || rareNonInheritedData->m_wrapThrough != other.rareNonInheritedData->m_wrapThrough
             || rareNonInheritedData->m_order != other.rareNonInheritedData->m_order
             || rareNonInheritedData->m_alignContent != other.rareNonInheritedData->m_alignContent
             || rareNonInheritedData->m_alignItems != other.rareNonInheritedData->m_alignItems
             || rareNonInheritedData->m_alignSelf != other.rareNonInheritedData->m_alignSelf
             || rareNonInheritedData->m_justifyContent != other.rareNonInheritedData->m_justifyContent
             || rareNonInheritedData->hasFilters() != other.rareNonInheritedData->hasFilters())
             return true;
 
@@ skipping 932 matching lines @@
     // right
     radiiSum = radii.topRight().height() + radii.bottomRight().height();
     if (radiiSum > rect.height())
         factor = std::min(rect.height() / radiiSum, factor);
 
     ASSERT(factor <= 1);
     return factor;
 }
 
 } // namespace blink