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

components/payments/content/payment_request.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/payments/content/payment_request.h"
 
 #include <algorithm>
 #include <unordered_map>
 #include <utility>
 
@@ skipping 117 matching lines @@
     const std::string& currency_code,
     const std::string& currency_system,
     const std::string& locale_name) {
   if (!currency_formatter_) {
     currency_formatter_.reset(
         new CurrencyFormatter(currency_code, currency_system, locale_name));
   }
   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);
+}
+
 void PaymentRequest::SetSelectedShippingProfile(
     autofill::AutofillProfile* profile) {
   selected_shipping_profile_ = profile;
   UpdateIsReadyToPayAndNotifyObservers();
 }
 
 void PaymentRequest::SetSelectedContactProfile(
     autofill::AutofillProfile* profile) {
   selected_contact_profile_ = profile;
   UpdateIsReadyToPayAndNotifyObservers();
@@ skipping 176 matching lines @@
            ->GetInfo(autofill::AutofillType(autofill::PHONE_HOME_WHOLE_NUMBER),
                      app_locale)
            .empty())) {
     return false;
   }
 
   return true;
 }
 
 }  // namespace payments