[Autofill] Add credit card first and last name heuristics predictions.

components/autofill/core/browser/autofill_regex_constants.cc

Index: components/autofill/core/browser/autofill_regex_constants.cc
diff --git a/components/autofill/core/browser/autofill_regex_constants.cc b/components/autofill/core/browser/autofill_regex_constants.cc
index 4ece638e64ed86221b6fba32ad8b5c22d5f3de33..12132460ad8aea212a5a0bf9969fd15d6890279c 100644
--- a/components/autofill/core/browser/autofill_regex_constants.cc
+++ b/components/autofill/core/browser/autofill_regex_constants.cc
@@ -136,6 +136,9 @@ const char kNameOnCardRe[] =
     "|持卡人姓名";  // zh-TW
 const char kNameOnCardContextualRe[] =
     "name";
+const char kLastNameOnCardContextualRe[] =

[Mathieu, 2016/02/23 15:23:03]

I wonder if kLastNameRe would do?

[sebsg, 2016/02/24 18:49:44]

Done.

+    "last.*name"
+    "|name.*last";
 const char kCardNumberRe[] =
     "(?:card|cc|acct).?(?:number|#|no|num)"
     "|nummer"  // de-DE