Update Android Card Unmask prompt to rely on the controller a bit more.

components/autofill/core/browser/autofill_external_delegate.cc

 // Copyright 2013 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.
 
 #include "components/autofill/core/browser/autofill_external_delegate.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/message_loop/message_loop.h"
 #include "base/metrics/histogram.h"
@@ skipping 86 matching lines @@
     return;
 
   std::vector<Suggestion> suggestions(input_suggestions);
 
   // Add or hide warnings as appropriate.
   ApplyAutofillWarnings(&suggestions);
 
   if (base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kEnableWalletCardImport)) {
     // For now, add a fake masked card.
-    suggestions.push_back(Suggestion(
-        "Visa - 1111", "[tap to unlock]", "",
-        POPUP_ITEM_ID_FAKE_MASKED_INSTRUMENT));
+    suggestions.push_back(Suggestion("Amex - 8431", "[tap to unlock]", "",
+                                     POPUP_ITEM_ID_FAKE_MASKED_INSTRUMENT));
   }
 
   // Add a separator to go between the values and menu items.
   suggestions.push_back(Suggestion());
   suggestions.back().frontend_id = POPUP_ITEM_ID_SEPARATOR;
 
   if (should_show_scan_credit_card_) {
     Suggestion scan_credit_card(
         l10n_util::GetStringUTF16(IDS_AUTOFILL_SCAN_CREDIT_CARD));
     scan_credit_card.frontend_id = POPUP_ITEM_ID_SCAN_CREDIT_CARD;
@@ skipping 322 matching lines @@
 void AutofillExternalDelegate::OnUnmaskVerificationResult(bool success) {
   if (success) {
     CreditCard fake_card(base::ASCIIToUTF16("371449635398431"), 5, 2016);
     manager_->FillCreditCardForm(query_id_, query_form_, query_field_,
                                  fake_card);
   }
   manager_->client()->OnUnmaskVerificationResult(success);
 }
 
 }  // namespace autofill