[Autofill] Enable heuristic detection of credit card issuer fields.

chrome/browser/autofill/form_field.h

Index: chrome/browser/autofill/form_field.h
diff --git a/chrome/browser/autofill/form_field.h b/chrome/browser/autofill/form_field.h
index 1b4da6a05085e3bd5bc57468646432c2bbc796db..f9143427f4b1f4e59462d63b40931326280b5d60 100644
--- a/chrome/browser/autofill/form_field.h
+++ b/chrome/browser/autofill/form_field.h
@@ -88,8 +88,7 @@ class FormField {
 
   // Function pointer type for the parsing function that should be passed to the
   // ParseFormFieldsPass() helper function.
-  typedef FormField* ParseFunction(AutofillScanner* scanner,
-                                   bool parse_new_field_types);
+  typedef FormField* ParseFunction(AutofillScanner* scanner);
 
   // Matches |pattern| to the contents of the field at the head of the
   // |scanner|.
@@ -112,7 +111,6 @@ class FormField {
   // holds any remaining unclassified fields for further processing.
   // Classification results of the processed fields are stored in |map|.
   static void ParseFormFieldsPass(ParseFunction parse,
-                                  bool parse_new_field_types,
                                   std::vector<const AutofillField*>* fields,
                                   FieldTypeMap* map);