[Payments] Normalize Shipping Address Change on Android.

chrome/test/data/payments/shipping_address_change.js

+/*
+ * Copyright 2017 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.
+ */
+
+/**
+ * Launches the PaymentRequest UI that prints the shipping address received
+ * on shippingAddressChange events at the end of the transaction.
+ */
+function buy() {  // eslint-disable-line no-unused-vars
+  try {
+    var details = {
+      total: {label: 'Total', amount: {currency: 'USD', value: '5.00'}},
+      displayItems: [
+        {
+          label: 'Pending shipping price',
+          amount: {currency: 'USD', value: '0.00'},
+          pending: true
+        },
+        {
+          label: 'Subtotal',
+          amount: {currency: 'USD', value: '5.00'}
+        }
+      ]
+    };
+
+    var request = new PaymentRequest(
+        [{supportedMethods: ['visa']}], details, {requestShipping: true});
+
+    var shippingAddressChange;
+
+    request.addEventListener('shippingaddresschange', function(evt) {
+      evt.updateWith(new Promise(function(resolve) {
+        print(JSON.stringify(request.shippingAddress, undefined, 2));
+        resolve(details);
+      }));
+    });
+
+    request.show();
+  } catch (error) {
+    print(error.message);
+  }
+}