Merge-60[Payments] Make state combobox def. value work with state abbrv.

components/autofill/core/browser/region_combobox_model.h

Index: components/autofill/core/browser/region_combobox_model.h
diff --git a/components/autofill/core/browser/region_combobox_model.h b/components/autofill/core/browser/region_combobox_model.h
index d148e53737e031b4b89fe2affdc15e12ad2d4a54..e6a89b29fe31c451fbc54d299dbaa274e9a5f5cf 100644
--- a/components/autofill/core/browser/region_combobox_model.h
+++ b/components/autofill/core/browser/region_combobox_model.h
@@ -43,6 +43,10 @@ class RegionComboboxModel : public ui::ComboboxModel {
 
   bool failed_to_load_data() const { return failed_to_load_data_; }
 
+  const std::vector<std::pair<std::string, std::string>>& GetRegions() const {
+    return regions_;
+  }
+
   // ui::ComboboxModel implementation:
   int GetItemCount() const override;
   base::string16 GetItemAt(int index) override;