[Payments] Add information requested by merchant metrics to PR.

chrome/android/javatests/src/org/chromium/chrome/browser/payments/PaymentRequestContactDetailsTest.java

 // 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.
 
 package org.chromium.chrome.browser.payments;
 
 import android.content.DialogInterface;
 import android.test.suitebuilder.annotation.MediumTest;
 
 import org.chromium.base.ThreadUtils;
+import org.chromium.base.metrics.RecordHistogram;
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.autofill.AutofillTestHelper;
 import org.chromium.chrome.browser.autofill.PersonalDataManager.AutofillProfile;
 import org.chromium.chrome.browser.autofill.PersonalDataManager.CreditCard;
 
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.TimeoutException;
 
 /**
  * A payment integration test for a merchant that requests contact details.
@@ skipping 141 matching lines @@
             public void run() {
                 mUI.getDialogForTest().findViewById(R.id.button_secondary).performClick();
                 mUI.getContactDetailsSectionForTest().findViewById(
                         R.id.payments_add_option_button).performClick();
             }
         });
         mDismissed.waitForCallback(callCount);
 
         expectResultContains(new String[] {"Request cancelled"});
     }
+
+    /**
+     * Test that starting a payment request that requires the user's email address and phone number
+     * results in the appropriate metric being logged in the PaymentRequest.RequestedInformation
+     * histogram.
+     */
+    @MediumTest
+    public void testRequestedInformationMetric() throws InterruptedException, ExecutionException,
+            TimeoutException {
+        // Start the Payment Request.
+        triggerUIAndWait(mReadyToPay);
+
+        // Make sure that only the appropriate enum value was logged.
+        for (int i = 0; i < PaymentRequestMetrics.REQUESTED_INFORMATION_MAX; ++i) {
+            assertEquals((i == (PaymentRequestMetrics.REQUESTED_INFORMATION_EMAIL
+                    | PaymentRequestMetrics.REQUESTED_INFORMATION_PHONE) ? 1 : 0),
+                    RecordHistogram.getHistogramValueCountForTesting(
+                            "PaymentRequest.RequestedInformation", i));
+        }
+    }
 }