Add WalletCardClass to WalletMaskedCreditCard

components/sync/protocol/autofill_specifics.proto

 // 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.
 //
 // Sync protocol datatype extension for autofill.
 
 // Update proto_value_conversions{.h,.cc,_unittest.cc} if you change
 // any fields in this file.
 
 syntax = "proto2";
@@ skipping 74 matching lines @@
     AMEX = 1;
     DISCOVER = 2;
     JCB = 3;
     MAESTRO = 4;
     MASTER_CARD = 5;
     SOLO = 6;
     SWITCH = 7;
     VISA = 8;
   }
 
+  enum WalletCardClass {
+    UNKNOWN_CARD_CLASS = 0;
+    CREDIT = 1;
+    DEBIT = 2;
+    PREPAID = 3;
+  }
+
   // Server-generated unique ID string. This is opaque to the client.
   optional string id = 1;
 
   // What the server thinks of this card.
   optional WalletCardStatus status = 2;
 
   optional string name_on_card = 3;
 
   optional WalletCardType type = 4;
 
   // Last 4 digits of the credit card number.
   optional string last_four = 5;
 
   // Month number 1-12.
   optional int32 exp_month = 6;
 
   // Four-digit year (e.g. 2017).
   optional int32 exp_year = 7;
 
   // The WalletPostalAddress.id of the billing address.
   optional string billing_address_id = 8;
+
+  // Card class: credit, debit, or prepaid.
+  optional WalletCardClass card_class = 9;
 }
 
 // Different than an AutofillProfile because this represents some known address
 // on the server that is pulled down rather than synced between Chromes.
 message WalletPostalAddress {
   optional string id = 1;
 
   optional string recipient_name = 12;
   optional string company_name = 2;
 
@@ skipping 77 matching lines @@
   // - Language code
   optional string id = 2;
 
   // The number of times that this Wallet card or address was used.
   optional int64 use_count = 3;
 
   // The last use date of this Wallet card or address. Measured in microseconds
   // since the Windows epoch (1601).
   optional int64 use_date = 4;
 }