Split StyleSurroundData::offset into separate members.

third_party/WebKit/Source/platform/LengthBox.h

 /*
     Copyright (C) 1999 Lars Knoll (knoll@kde.org)
     Copyright (C) 2006, 2008 Apple Inc. All rights reserved.
     Copyright (c) 2012, Google 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 35 matching lines @@
 
   LengthBox(const Length& t, const Length& r, const Length& b, const Length& l)
       : m_left(l), m_right(r), m_top(t), m_bottom(b) {}
 
   LengthBox(int t, int r, int b, int l)
       : m_left(Length(l, Fixed)),
         m_right(Length(r, Fixed)),
         m_top(Length(t, Fixed)),
         m_bottom(Length(b, Fixed)) {}
 
+  // For use in ComputedStyle.h
+  static const Length& logicalLeft(WritingMode,
+                                   const Length& left,
+                                   const Length& top);
+  static const Length& logicalRight(WritingMode,
+                                    const Length& right,
+                                    const Length& bottom);
+  static const Length& before(WritingMode,
+                              const Length& top,
+                              const Length& left,
+                              const Length& right);
+  static const Length& after(WritingMode,
+                             const Length& bottom,
+                             const Length& left,
+                             const Length& right);
+
   const Length& left() const { return m_left; }
   const Length& right() const { return m_right; }
   const Length& top() const { return m_top; }
   const Length& bottom() const { return m_bottom; }
 
   const Length& logicalLeft(WritingMode) const;
   const Length& logicalRight(WritingMode) const;
 
   const Length& before(WritingMode) const;
   const Length& after(WritingMode) const;
@@ skipping 17 matching lines @@
   // Must be public for SET_VAR in ComputedStyle.h
   Length m_left;
   Length m_right;
   Length m_top;
   Length m_bottom;
 };
 
 }  // namespace blink
 
 #endif  // LengthBox_h