Generate subgroup StyleSurroundData in ComputedStyle.

third_party/WebKit/Source/build/scripts/templates/fields/base.tmpl

Index: third_party/WebKit/Source/build/scripts/templates/fields/base.tmpl
diff --git a/third_party/WebKit/Source/build/scripts/templates/fields/base.tmpl b/third_party/WebKit/Source/build/scripts/templates/fields/base.tmpl
index b3c23ae658e05511ec7a416b0f2bf12e297ef63e..40e44247a222977a28cea2e2b153b428341e4663 100644
--- a/third_party/WebKit/Source/build/scripts/templates/fields/base.tmpl
+++ b/third_party/WebKit/Source/build/scripts/templates/fields/base.tmpl
@@ -1,16 +1,16 @@
-{% from 'fields/field.tmpl' import encode, decode, return_type %}
+{% from 'fields/field.tmpl' import encode, decode, getter_expression, setter_expression, return_type %}
 {% macro decl_methods(field) -%}
 inline static {{field.type_name}} {{field.initial_method_name}}() {
   return {{field.default_value}};
 }
 {{return_type(field)}} {{field.getter_method_name}}() const {
-  return {{decode(field, field.name)}};
+  return {{decode(field, getter_expression(field))}};
 }
-void {{field.setter_method_name}}({{field.type_name}} v) {
-  {{field.name}} = {{encode(field, "v")}};
+void {{field.setter_method_name}}(const {{field.type_name}}& v) {
+  {{setter_expression(field)}} = {{encode(field, "v")}};
 }
 inline void {{field.resetter_method_name}}() {
-  {{field.name}} = {{encode(field, field.default_value)}};
+  {{setter_expression(field)}} = {{encode(field, field.default_value)}};
 }
 {%- endmacro %}