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

chrome/android/javatests/src/org/chromium/chrome/browser/payments/PaymentRequestPhoneTest.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.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 phone number.
@@ skipping 48 matching lines @@
         triggerUIAndWait(mReadyToPay);
         clickInContactInfoAndWait(R.id.payments_section, mReadyForInput);
         clickInContactInfoAndWait(R.id.payments_add_option_button, mReadyToEdit);
         setTextInEditorAndWait(new String[] {"999-999-9999"}, mEditorTextUpdate);
         clickInEditorAndWait(R.id.payments_edit_done_button, mReadyToPay);
         clickAndWait(R.id.button_primary, mReadyForUnmaskInput);
         setTextInCardUnmaskDialogAndWait(R.id.card_unmask_input, "123", mReadyToUnmask);
         clickCardUnmaskButtonAndWait(DialogInterface.BUTTON_POSITIVE, mDismissed);
         expectResultContains(new String[] {"999-999-9999"});
     }
+
+    /**
+     * Test that starting a payment request that requires only the user's 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_PHONE ? 1 : 0),
+                    RecordHistogram.getHistogramValueCountForTesting(
+                            "PaymentRequest.RequestedInformation", i));
+        }
+    }
 }