[Payments] Field trial and flag to abort payment request if no card.

chrome/android/java/src/org/chromium/chrome/browser/payments/PaymentRequestImpl.java

Index: chrome/android/java/src/org/chromium/chrome/browser/payments/PaymentRequestImpl.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/payments/PaymentRequestImpl.java b/chrome/android/java/src/org/chromium/chrome/browser/payments/PaymentRequestImpl.java
index 44bc75d4b1ef2bfa34541677372ae808c686100a..b6b81abdf1bf752b47e4398ecad2e7857d53364a 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/payments/PaymentRequestImpl.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/payments/PaymentRequestImpl.java
@@ -18,6 +18,7 @@ import org.chromium.base.VisibleForTesting;
 import org.chromium.base.metrics.RecordHistogram;
 import org.chromium.chrome.R;
 import org.chromium.chrome.browser.ChromeActivity;
+import org.chromium.chrome.browser.ChromeFeatureList;
 import org.chromium.chrome.browser.autofill.PersonalDataManager;
 import org.chromium.chrome.browser.autofill.PersonalDataManager.AutofillProfile;
 import org.chromium.chrome.browser.autofill.PersonalDataManager.NormalizedAddressRequestDelegate;
@@ -1029,6 +1030,22 @@ public class PaymentRequestImpl implements PaymentRequest, PaymentRequestUI.Clie
             return true;
         }
 
+        if (ChromeFeatureList.isEnabled(ChromeFeatureList.NO_CREDIT_CARD_ABORT)
+                && PersonalDataManager.getInstance().getCreditCardsToSuggest().size() == 0
+                && (!mArePaymentMethodsSupported
+                        || (mIsShowing && !waitingForPaymentApps && !foundPaymentMethods))) {
+            // The experiment to abort if the user has no credit card is enabled, the user has no
+            // credit card, and there is no intersection between the other payment apps that the
+            // merchant supports and the ones the user has with instruments. The payment request
+            // must be rejected.
+            disconnectFromClientWithDebugMessage(
+                    "User has no credit card", PaymentErrorReason.NOT_SUPPORTED);
+            recordAbortReasonHistogram(
+                    PaymentRequestMetrics.ABORT_REASON_NO_MATCHING_PAYMENT_METHOD);
+            if (sObserverForTest != null) sObserverForTest.onPaymentRequestServiceShowFailed();
+            return true;
+        }
+
         return false;
     }