Ask libaddressinput for address components to use in requestAutocomplete().

chrome/browser/ui/views/autofill/autofill_dialog_views.cc

Index: chrome/browser/ui/views/autofill/autofill_dialog_views.cc
diff --git a/chrome/browser/ui/views/autofill/autofill_dialog_views.cc b/chrome/browser/ui/views/autofill/autofill_dialog_views.cc
index 36c2fc69113dff6ebf2bfe31846e28a063611d3a..8cd65ec2bcae58c760e47c335ec581433eb7f875 100644
--- a/chrome/browser/ui/views/autofill/autofill_dialog_views.cc
+++ b/chrome/browser/ui/views/autofill/autofill_dialog_views.cc
@@ -1731,6 +1731,8 @@ void AutofillDialogViews::OnDidChangeFocus(
 
 void AutofillDialogViews::OnSelectedIndexChanged(views::Combobox* combobox) {
   DetailsGroup* group = GroupForView(combobox);
+  int index = combobox->selected_index();
+  delegate_->ComboboxItemSelected(combobox->model(), group->section, index);
   ValidateGroup(*group, VALIDATE_EDIT);
   SetEditabilityForSection(group->section);
 }