[Payments] Dedupe subsets in contact detail suggestions.

chrome/test/data/android/payments/email_and_phone.js

Index: chrome/test/data/android/payments/email_and_phone.js
diff --git a/chrome/test/data/android/payments/email_and_phone.js b/chrome/test/data/android/payments/email_and_phone.js
new file mode 100644
index 0000000000000000000000000000000000000000..eafc356ac5db1b5abf1fa8a861fc07a3afb7ef12
--- /dev/null
+++ b/chrome/test/data/android/payments/email_and_phone.js
@@ -0,0 +1,37 @@
+/*
+ * 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.
+ */
+
+/* global PaymentRequest:false */
+
+/*
+ * Launches the PaymentRequest UI that requests email address and phone number.
+ */
+function buy() {  // eslint-disable-line no-unused-vars
+  try {
+    new PaymentRequest(
+        [{supportedMethods: ['visa']}],
+        {total: {label: 'Total', amount: {currency: 'USD', value: '5.00'}}},
+        {requestPayerEmail: true, requestPayerPhone: true})
+        .show()
+        .then(function(resp) {
+          resp.complete('success')
+              .then(function() {
+                print(

[please use gerrit instead, 2016/12/16 20:34:51]

By the way, you can do JSON.stringify(resp, undefined, 2) now instead of
manually reading things out of resp one by one. Pretty nifty!

[sebsg, 2016/12/19 20:56:30]

Done.

+                    resp.payerEmail + '<br>' + resp.payerPhone + '<br>' +
+                    resp.methodName + '<br>' +
+                    JSON.stringify(resp.details, undefined, 2));
+              })
+              .catch(function(error) {
+                print(error);
+              });
+        })
+        .catch(function(error) {
+          print(error);
+        });
+  } catch (error) {
+    print(error.message);
+  }
+}