test:

chrome/android/javatests/src/org/chromium/chrome/browser/payments/PaymentRequestEmailTest.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;
@@ skipping 38 matching lines @@
         clickCardUnmaskButtonAndWait(DialogInterface.BUTTON_POSITIVE, mDismissed);
         expectResultContains(new String[] {"jon.doe@google.com"});
     }
 
     /** Attempt to add an invalid email address and cancel the transaction. */
     @MediumTest
     @Feature({"Payments"})
     public void testAddInvalidEmailAndCancel()
             throws InterruptedException, ExecutionException, TimeoutException {
         triggerUIAndWait(mReadyToPay);
-        clickInContactInfoAndWait(R.id.payments_section, mReadyForInput);
-        clickInContactInfoAndWait(R.id.payments_add_option_button, mReadyToEdit);
+        clickInPayerInfoAndWait(R.id.payments_section, mReadyForInput);
+        clickInPayerInfoAndWait(R.id.payments_add_option_button, mReadyToEdit);
         setTextInEditorAndWait(new String[] {"jane.jones"}, mEditorTextUpdate);
         clickInEditorAndWait(R.id.payments_edit_done_button, mEditorValidationError);
         clickInEditorAndWait(R.id.payments_edit_cancel_button, mReadyForInput);
         clickAndWait(R.id.close_button, mDismissed);
         expectResultContains(new String[] {"Request cancelled"});
     }
 
     /** Add a new email address and provide that to the merchant. */
     @MediumTest
     @Feature({"Payments"})
     public void testAddEmailAndPay()
             throws InterruptedException, ExecutionException, TimeoutException {
         triggerUIAndWait(mReadyToPay);
-        clickInContactInfoAndWait(R.id.payments_section, mReadyForInput);
-        clickInContactInfoAndWait(R.id.payments_add_option_button, mReadyToEdit);
+        clickInPayerInfoAndWait(R.id.payments_section, mReadyForInput);
+        clickInPayerInfoAndWait(R.id.payments_add_option_button, mReadyToEdit);
         setTextInEditorAndWait(new String[] {"jane.jones@google.com"}, 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[] {"jane.jones@google.com"});
     }
 
     /**
      * Test that starting a payment request that requires only the user's email address results in
      * the appropriate metric being logged in the PaymentRequest.RequestedInformation histogram.
      */
     @MediumTest
     @Feature({"Payments"})
     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 ? 1 : 0),
                     RecordHistogram.getHistogramValueCountForTesting(
                             "PaymentRequest.RequestedInformation", i));
         }
     }
 }