[Autofill] Add cvc regexes for the heuristics.

components/autofill/core/browser/autofill_regex_constants.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.
 
 // This file contains UTF8 strings that we want as char arrays.  To avoid
 // different compilers, we use a script to convert the UTF8 strings into
 // numeric literals (\x##).
 
 #include "components/autofill/core/browser/autofill_regex_constants.h"
 
@@ skipping 130 matching lines @@
     "|nummer"  // de-DE
     "|credito|numero|número"  // es
     "|numéro"  // fr-FR
     "|カード番号"  // ja-JP
     "|Номер.*карты"  // ru
     "|信用卡号|信用卡号码"  // zh-CN
     "|信用卡卡號"  // zh-TW
     "|카드";  // ko-KR
 const char kCardCvcRe[] =
     "verification|card.?identification|security.?code|card.?code"
+    "|security.?number|card.?pin|c-v-v"
     "|(cvn|cvv|cvc|csc|cvd|cid|ccv)(field)?"
     "|\\bcid\\b";
 
 // "Expiration date" is the most common label here, but some pages have
 // "Expires", "exp. date" or "exp. month" and "exp. year".  We also look
 // for the field names ccmonth and ccyear, which appear on at least 4 of
 // our test pages.
 
 // On at least one page (The China Shop2.html) we find only the labels
 // "month" and "year".  So for now we match these words directly; we'll
@@ skipping 130 matching lines @@
     "prefix|exchange"
     "|preselection"  // fr-FR
     "|ddd";  // pt-BR, pt-PT
 const char kPhoneSuffixRe[] =
     "suffix";
 const char kPhoneExtensionRe[] =
     "\\bext|ext\\b|extension"
     "|ramal";  // pt-BR, pt-PT
 
 }  // namespace autofill