Generate StyleBoxData in ComputedStyleBase.

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 77a3e506ed808ccb2e383dff2070fb6667c8ba65..e81d8705174f165d651d260be4a120351d78e466 100644
--- a/third_party/WebKit/Source/core/style/ComputedStyle.h
+++ b/third_party/WebKit/Source/core/style/ComputedStyle.h
@@ -180,61 +180,8 @@ class CORE_EXPORT ComputedStyle : public ComputedStyleBase,
   friend class StyleResolverState;
   friend class StyleResolver;
 
- private:
-  class StyleBoxData : public RefCountedCopyable<StyleBoxData> {
-   public:
-    static PassRefPtr<StyleBoxData> Create() {
-      return AdoptRef(new StyleBoxData);
-    }
-    PassRefPtr<StyleBoxData> Copy() const {
-      return AdoptRef(new StyleBoxData(*this));
-    }
-
-    bool operator==(const StyleBoxData& other) const {
-      return width_ == other.width_ && height_ == other.height_ &&
-             min_width_ == other.min_width_ && max_width_ == other.max_width_ &&
-             min_height_ == other.min_height_ &&
-             max_height_ == other.max_height_ &&
-             vertical_align_length_ == other.vertical_align_length_ &&
-             z_index_ == other.z_index_ &&
-             has_auto_z_index_ == other.has_auto_z_index_ &&
-             box_sizing_ == other.box_sizing_ &&
-             box_decoration_break_ == other.box_decoration_break_;
-    }
-    bool operator!=(const StyleBoxData& o) const { return !(*this == o); }
-
-    Length width_;
-    Length height_;
-    Length min_width_;
-    Length max_width_;
-    Length min_height_;
-    Length max_height_;
-    Length vertical_align_length_;
-    int z_index_;
-    unsigned has_auto_z_index_ : 1;
-    unsigned box_sizing_ : 1;            // EBoxSizing
-    unsigned box_decoration_break_ : 1;  // EBoxDecorationBreak
-
-   private:
-    StyleBoxData()
-        : width_(Length()),
-          height_(Length()),
-          min_width_(Length()),
-          max_width_(Length(kMaxSizeNone)),
-          min_height_(Length()),
-          max_height_(Length(kMaxSizeNone)),
-          z_index_(0),
-          has_auto_z_index_(static_cast<unsigned>(true)),
-          box_sizing_(static_cast<unsigned>(EBoxSizing::kContentBox)),
-          box_decoration_break_(
-              static_cast<unsigned>(EBoxDecorationBreak::kSlice)) {}
-
-    StyleBoxData(const StyleBoxData&) = default;
-  };
-
  protected:
   // non-inherited attributes
-  DataRef<StyleBoxData> box_data_;
   DataRef<StyleRareNonInheritedData> rare_non_inherited_data_;
 
   // inherited attributes