Split StyleSurroundData::offset into separate members.

third_party/WebKit/Source/platform/LengthBox.h

Index: third_party/WebKit/Source/platform/LengthBox.h
diff --git a/third_party/WebKit/Source/platform/LengthBox.h b/third_party/WebKit/Source/platform/LengthBox.h
index a57d28719391f314e763e540cf51b9c755d727c0..e79f9a0ee19e1e969df5c184e70b02cbbaabd306 100644
--- a/third_party/WebKit/Source/platform/LengthBox.h
+++ b/third_party/WebKit/Source/platform/LengthBox.h
@@ -68,6 +68,24 @@ class PLATFORM_EXPORT LengthBox {
   const Length& over(WritingMode) const;
   const Length& under(WritingMode) const;
 
+  // For use in ComputedStyle.h
+  // TODO(shend): these are independent of LengthBox, make them nonmember

[nainar, 2017/02/21 02:28:37]

could that be done in this patch? Having these functions here seems a bit off to
me

+  // functions.
+  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);
+
   bool operator==(const LengthBox& o) const {
     return m_left == o.m_left && m_right == o.m_right && m_top == o.m_top &&
            m_bottom == o.m_bottom;