Reland: Test dismissing CVC prompt for PaymentRequest

chrome/android/javatests/src/org/chromium/chrome/browser/payments/PaymentRequestNoShippingTest.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.test.suitebuilder.annotation.MediumTest;
 
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.autofill.AutofillTestHelper;
@@ skipping 35 matching lines @@
     }
 
     @MediumTest
     public void testEditAndCancelDialog() throws InterruptedException, ExecutionException,
             TimeoutException {
         triggerUIAndWait(mReadyForInput);
         clickAndWait(R.id.button_secondary, mReadyForInput);
         clickAndWait(R.id.button_secondary, mDismissed);
         expectResultContains(new String[] {"Request cancelled"});
     }
+
+    @MediumTest
+    public void testPayAndCancelDialog() throws InterruptedException, ExecutionException,
+            TimeoutException {
+        triggerUIAndWait(mReadyToPay);
+        clickAndWait(R.id.button_primary, mReadyToUnmask);
+        cancelCardUnmaskDialogAndWait(mReadyToUnmask.getTarget(), mResultReady);
+        clickAndWait(R.id.ok_button, mDismissed);
+        expectResultContains(new String[] {"Request cancelled"});
+    }
 }