Move border-*-width out of BorderValue and store on SurroundData in ComputedStyle instead

third_party/WebKit/Source/build/scripts/templates/ComputedStyleBase.h.tmpl

 {% from 'macros.tmpl' import license, print_if %}
 {% from 'fields/field.tmpl' import encode, getter_expression, declare_storage, fieldwise_compare %}
 {% from 'fields/group.tmpl' import define_field_group_class %}
 {{license()}}
 
 #ifndef ComputedStyleBase_h
 #define ComputedStyleBase_h
 
 #include "core/style/ComputedStyleConstants.h"
 #include "core/CoreExport.h"
@@ skipping 120 matching lines @@
   {% endif %}
   {% endfor %}
 
   ~ComputedStyleBase() = default;
 
   // Storage.
   {% for subgroup in computed_style.subgroups %}
   DataRef<{{subgroup.type_name}}> {{subgroup.member_name}};
   {% endfor %}
 
+  static unsigned WidthToFixedPoint(float width) {
+    DCHECK_GE(width, 0);
+    return static_cast<unsigned>(std::min<float>(width, kMaxForBorderWidth) *
+                                 kBorderWidthDenominator);
+  }
+
  private:
   {% for field in computed_style.fields %}
   {{declare_storage(field)}}
   {% endfor %}
 };
 
 } // namespace blink
 
 #endif // ComputedStyleBase_h