Highlight fields we know to be invalid but have no way of locally checking.

components/autofill/browser/wallet/wallet_items.cc

 // Copyright (c) 2012 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/browser/wallet/wallet_items.h"
 
 #include "base/logging.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
@@ skipping 308 matching lines @@
   if (AutofillType(type).group() != AutofillType::CREDIT_CARD)
     return address().GetInfo(type, app_locale);
 
   switch (type) {
     case CREDIT_CARD_NAME:
       return address().recipient_name();
 
     case CREDIT_CARD_NUMBER:
       return DisplayName();
 
+    case CREDIT_CARD_EXP_MONTH:
+      return base::IntToString16(expiration_month());
+
     case CREDIT_CARD_EXP_4_DIGIT_YEAR:
       return base::IntToString16(expiration_year());
 
     case CREDIT_CARD_VERIFICATION_CODE:
       break;
 
     default:
       NOTREACHED();
   }
 
@@ skipping 182 matching lines @@
          VectorsAreEqual<LegalDocument>(legal_documents(),
                                         other.legal_documents());
 }
 
 bool WalletItems::operator!=(const WalletItems& other) const {
   return !(*this == other);
 }
 
 }  // namespace wallet
 }  // namespace autofill