Add totalAmount to PaymentResponse.

third_party/WebKit/public/platform/modules/payments/payment_request.mojom

 // 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.
 
 [JavaPackage="org.chromium.mojom.payments"]
 module blink.mojom;
 
 // The shipping address that the browser process provides to the renderer
 // process. Built either by the browser or a payment app.
 struct PaymentAddress {
@@ skipping 14 matching lines @@
   // Optional ISO 15924 script code. Four ASCII letters. The first letter is
   // upper case; the rest are lower case.
   string script_code;
 
   string organization;
   string recipient;
   string careOf;
   string phone;
 };
 
+// The currency amount that the renderer provides to the browser process. The
+// browser shows the amount in UI and forwards it on to the payment app, if it
+// requires the amount.
+struct CurrencyAmount {
+  // ISO 4217 currency code. Three upper case ASCII letters.
+  string currency;
+
+  // ISO 20022 CurrencyAnd30Amount. Up to 30 total digits. Up to 10 fraction
+  // digits. Separated by a dot.
+  string value;
+};
+
 struct PaymentResponse {
   string method_name;
+  CurrencyAmount total_amount;
 
   // Payment method specific JSON string that is built either by the browser or
   // a payment app, for example Android Pay. Browser ensures that the string can
   // be successfully parsed into base::JSONParser. Renderer parses this string
   // via v8::JSON::Parse() and hands off the result to the merchant website.
   // There's no one format for this object, so richer types cannot be used. A
   // simple example:
   //
   // {"nameOnCard": "Jon Doe", "pan": "4111 1111 1111 1111"}
   string stringified_details;
 
   PaymentAddress? shipping_address;
   string? shipping_option_id;
 };
 
 interface PaymentRequestClient {
   OnShippingAddressChange(PaymentAddress address);
   OnShippingOptionChange(string shipping_option_id);
   OnPaymentResponse(PaymentResponse response);
   OnError();
   OnComplete();
 };
 
-// The currency amount that the renderer provides to the browser process. The
-// browser shows the amount in UI and forwards it on to the payment app, if it
-// requires the amount.
-struct CurrencyAmount {
-  // ISO 4217 currency code. Three upper case ASCII letters.
-  string currency;
-
-  // ISO 20022 CurrencyAnd30Amount. Up to 30 total digits. Up to 10 fraction
-  // digits. Separated by a dot.
-  string value;
-};
-
 struct PaymentItem {
   string label;
   CurrencyAmount amount;
 };
 
 struct ShippingOption {
   string id;
   string label;
   CurrencyAmount amount;
   bool selected;
@@ skipping 25 matching lines @@
 
 interface PaymentRequest {
   SetClient(PaymentRequestClient client);
   Show(array<PaymentMethodData> methodData,
        PaymentDetails details,
        PaymentOptions options);
   UpdateWith(PaymentDetails details);
   Abort();
   Complete(bool success);
 };