Move StyleMultiColData::RuleWidth to ComputedStyle.

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

Index: third_party/WebKit/Source/core/style/StyleMultiColData.h
diff --git a/third_party/WebKit/Source/core/style/StyleMultiColData.h b/third_party/WebKit/Source/core/style/StyleMultiColData.h
index bc9d257a5b0a2fc790ed52329f50e0c7482078bf..122465cd3143099d3d886e9978d6bfd43292c8ea 100644
--- a/third_party/WebKit/Source/core/style/StyleMultiColData.h
+++ b/third_party/WebKit/Source/core/style/StyleMultiColData.h
@@ -47,13 +47,6 @@ class CORE_EXPORT StyleMultiColData : public RefCounted<StyleMultiColData> {
   bool operator==(const StyleMultiColData&) const;
   bool operator!=(const StyleMultiColData& o) const { return !(*this == o); }
 
-  unsigned short RuleWidth() const {
-    if (rule_.Style() == EBorderStyle::kNone ||
-        rule_.Style() == EBorderStyle::kHidden)
-      return 0;
-    return rule_.Width();
-  }
-
   float width_;
   unsigned short count_;
   float gap_;