[Autofill] Change MasterCard to Mastercard in UI and related tests

components/autofill/core/browser/credit_card.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/credit_card.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <algorithm>
@@ skipping 166 matching lines @@
   // The last site is currently unavailable, but a cached version remains at
   // http://web.archive.org/web/20120923111349/http://www.beachnet.com/~hstiles/cardtype.html
   //
   // Card Type              Prefix(es)                      Length
   // ---------------------------------------------------------------
   // Visa                   4                               13,16
   // American Express       34,37                           15
   // Diners Club            300-305,3095,36,38-39           14
   // Discover Card          6011,644-649,65                 16
   // JCB                    3528-3589                       16
-  // MasterCard             51-55                           16
+  // Mastercard             51-55                           16
   // UnionPay               62                              16-19
 
   // Check for prefixes of length 1.
   if (number.empty())
     return kGenericCard;
 
   if (number[0] == '4')
     return kVisaCard;
 
   // Check for prefixes of length 2.
@@ skipping 731 matching lines @@
 const char kDinersCard[] = "dinersCC";
 const char kDiscoverCard[] = "discoverCC";
 const char kGenericCard[] = "genericCC";
 const char kJCBCard[] = "jcbCC";
 const char kMasterCard[] = "masterCardCC";
 const char kMirCard[] = "mirCC";
 const char kUnionPay[] = "unionPayCC";
 const char kVisaCard[] = "visaCC";
 
 }  // namespace autofill