Merge-60 Select saved region when loaded async in ship addr editor.

chrome/browser/ui/views/payments/shipping_address_editor_view_controller.cc

Index: chrome/browser/ui/views/payments/shipping_address_editor_view_controller.cc
diff --git a/chrome/browser/ui/views/payments/shipping_address_editor_view_controller.cc b/chrome/browser/ui/views/payments/shipping_address_editor_view_controller.cc
index 444ac2e594aaac9aed1b2c4354ec94b782d2a55b..9ccfde4a16d46e809bee98fe5c958f00e66bfb4a 100644
--- a/chrome/browser/ui/views/payments/shipping_address_editor_view_controller.cc
+++ b/chrome/browser/ui/views/payments/shipping_address_editor_view_controller.cc
@@ -435,6 +435,13 @@ void ShippingAddressEditorViewController::OnComboboxModelChanged(
     // It is safe to update synchronously since the change comes from the model
     // and not from the UI.
     OnDataChanged(/*synchronous=*/true);
+  } else {
+    base::string16 state_value =
+        GetInitialValueForType(autofill::ADDRESS_HOME_STATE);
+    if (!state_value.empty()) {
+      combobox->SelectValue(state_value);
+      OnPerformAction(combobox);
+    }
   }
 }