Introduce BorderImageLength and BorderImageLengthBox

Source/core/rendering/style/NinePieceImage.cpp

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2005, 2006, 2007, 2008, 2013 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.
@@ skipping 21 matching lines @@
     if (!data->get())
         data->init();
     return *data;
 }
 
 NinePieceImage::NinePieceImage()
     : m_data(defaultData())
 {
 }
 
-NinePieceImage::NinePieceImage(PassRefPtr<StyleImage> image, LengthBox imageSlices, bool fill, LengthBox borderSlices, LengthBox outset, ENinePieceImageRule horizontalRule, ENinePieceImageRule verticalRule)
+NinePieceImage::NinePieceImage(PassRefPtr<StyleImage> image, LengthBox imageSlices, bool fill, const BorderImageLengthBox& borderSlices, const BorderImageLengthBox& outset, ENinePieceImageRule horizontalRule, ENinePieceImageRule verticalRule)
 {
     m_data.init();
     m_data.access()->image = image;
     m_data.access()->imageSlices = imageSlices;
     m_data.access()->borderSlices = borderSlices;
     m_data.access()->outset = outset;
     m_data.access()->fill = fill;
     m_data.access()->horizontalRule = horizontalRule;
     m_data.access()->verticalRule = verticalRule;
 }
@@ skipping 26 matching lines @@
     return StyleImage::imagesEquivalent(image.get(), other.image.get())
         && imageSlices == other.imageSlices
         && fill == other.fill
         && borderSlices == other.borderSlices
         && outset == other.outset
         && horizontalRule == other.horizontalRule
         && verticalRule == other.verticalRule;
 }
 
 }