Add Mir credit card support to autofill.

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 72 matching lines @@
   enum WalletCardType {
     UNKNOWN = 0;
     AMEX = 1;
     DISCOVER = 2;
     JCB = 3;
     MAESTRO = 4;
     MASTER_CARD = 5;
     SOLO = 6;
     SWITCH = 7;
     VISA = 8;
+    MIR = 9;

[please use gerrit instead, 2016/11/18 10:34:21]

No need to modify anything sync server related.

   }
 
   // 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;
 
@@ skipping 100 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;
 }