Split StyleSurroundData::offset into separate members.

third_party/WebKit/Source/core/style/StyleSurroundData.cpp

 /*
  * Copyright (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008 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
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  *
  */
 
 #include "core/style/StyleSurroundData.h"
 
 namespace blink {
 
 StyleSurroundData::StyleSurroundData() : margin(Fixed), padding(Fixed) {}
 
 StyleSurroundData::StyleSurroundData(const StyleSurroundData& o)
     : RefCounted<StyleSurroundData>(),
-      offset(o.offset),
+      m_left(o.m_left),
+      m_right(o.m_right),
+      m_top(o.m_top),
+      m_bottom(o.m_bottom),
       margin(o.margin),
       padding(o.padding),
       border(o.border) {}
 
 bool StyleSurroundData::operator==(const StyleSurroundData& o) const {
-  return offset == o.offset && margin == o.margin && padding == o.padding &&
+  return m_left == o.m_left && m_right == o.m_right && m_top == o.m_top &&
+         m_bottom == o.m_bottom && margin == o.margin && padding == o.padding &&
          border == o.border;
 }
 
 }  // namespace blink