Selected shipping option in payment summary view + shipping option selection view

ios/chrome/browser/payments/payment_request_utils.mm

Index: ios/chrome/browser/payments/payment_request_utils.mm
diff --git a/ios/chrome/browser/payments/payment_request_utils.mm b/ios/chrome/browser/payments/payment_request_utils.mm
index bfe81e7ff4354f70dfcb5efeec824fdd4bb5ab82..85d6cb7ec0c64fe82f06f574ee07f083ddf87169 100644
--- a/ios/chrome/browser/payments/payment_request_utils.mm
+++ b/ios/chrome/browser/payments/payment_request_utils.mm
@@ -26,4 +26,13 @@ NSString* AddressLabelFromAutofillProfile(autofill::AutofillProfile* profile) {
       GetApplicationContext()->GetApplicationLocale()));
 }
 
+NSString* FormattedCurrencyString(NSDecimalNumber* value,
+                                  NSString* currencyCode) {
+  NSNumberFormatter* currencyFormatter =
+      [[[NSNumberFormatter alloc] init] autorelease];
+  [currencyFormatter setNumberStyle:NSNumberFormatterCurrencyStyle];
+  [currencyFormatter setCurrencyCode:currencyCode];
+  return [currencyFormatter stringFromNumber:value];
+}
+
 }  // namespace payment_request_utils