Generate subgroup StyleSurroundData in ComputedStyle.

third_party/WebKit/Source/core/style/ComputedStyle.h

Index: third_party/WebKit/Source/core/style/ComputedStyle.h
diff --git a/third_party/WebKit/Source/core/style/ComputedStyle.h b/third_party/WebKit/Source/core/style/ComputedStyle.h
index 0b147d6ef6e0220dd2e0d17720f31245bc398219..bd3fea5a90992b5a8bee0e59a911f7c1e7aaadfa 100644
--- a/third_party/WebKit/Source/core/style/ComputedStyle.h
+++ b/third_party/WebKit/Source/core/style/ComputedStyle.h
@@ -52,7 +52,6 @@
 #include "core/style/StyleRareNonInheritedData.h"
 #include "core/style/StyleReflection.h"
 #include "core/style/StyleSelfAlignmentData.h"
-#include "core/style/StyleSurroundData.h"
 #include "core/style/StyleTransformData.h"
 #include "core/style/StyleVisualData.h"
 #include "core/style/StyleWillChangeData.h"
@@ -118,7 +117,6 @@ using std::max;
 class FilterOperations;
 
 class AppliedTextDecoration;
-class BorderData;
 struct BorderEdge;
 class CSSAnimationData;
 class CSSTransitionData;
@@ -188,7 +186,6 @@ class CORE_EXPORT ComputedStyle : public ComputedStyleBase,
   DataRef<StyleBoxData> m_box;
   DataRef<StyleVisualData> m_visual;
   DataRef<StyleBackgroundData> m_background;
-  DataRef<StyleSurroundData> m_surround;
   DataRef<StyleRareNonInheritedData> m_rareNonInheritedData;
 
   // inherited attributes
@@ -643,22 +640,6 @@ class CORE_EXPORT ComputedStyle : public ComputedStyleBase,
   // Offset properties.
   static Length initialOffset() { return Length(); }
 
-  // left
-  const Length& left() const { return m_surround->m_left; }
-  void setLeft(const Length& v) { SET_VAR(m_surround, m_left, v); }
-
-  // right
-  const Length& right() const { return m_surround->m_right; }
-  void setRight(const Length& v) { SET_VAR(m_surround, m_right, v); }
-
-  // top
-  const Length& top() const { return m_surround->m_top; }
-  void setTop(const Length& v) { SET_VAR(m_surround, m_top, v); }
-
-  // bottom
-  const Length& bottom() const { return m_surround->m_bottom; }
-  void setBottom(const Length& v) { SET_VAR(m_surround, m_bottom, v); }
-
   // box-shadow (aka -webkit-box-shadow)
   static ShadowList* initialBoxShadow() { return 0; }
   ShadowList* boxShadow() const {