[Web Payments] Add inline items to the Order Summary section.

components/payments/content/payment_request.cc

Index: components/payments/content/payment_request.cc
diff --git a/components/payments/content/payment_request.cc b/components/payments/content/payment_request.cc
index e55e68b272a5ec75112dfe572c94fadd4b8f4389..613bff17b6c79a3c6d14b32facd805f16cac8557 100644
--- a/components/payments/content/payment_request.cc
+++ b/components/payments/content/payment_request.cc
@@ -135,6 +135,24 @@ CurrencyFormatter* PaymentRequest::GetOrCreateCurrencyFormatter(
   return currency_formatter_.get();
 }
 
+base::string16 PaymentRequest::GetFormattedCurrencyAmount(
+    const std::string& amount) {
+  CurrencyFormatter* formatter =
+      GetOrCreateCurrencyFormatter(details()->total->amount->currency,
+                                   details()->total->amount->currency_system,
+                                   delegate_->GetApplicationLocale());
+  return formatter->Format(amount);
+}
+
+std::string PaymentRequest::GetFormattedCurrencyCode() {
+  CurrencyFormatter* formatter =
+      GetOrCreateCurrencyFormatter(details()->total->amount->currency,
+                                   details()->total->amount->currency_system,
+                                   delegate_->GetApplicationLocale());
+
+  return formatter->formatted_currency_code();
+}
+
 void PaymentRequest::SetSelectedShippingProfile(
     autofill::AutofillProfile* profile) {
   selected_shipping_profile_ = profile;