[Autofill] Autofill fails to fill credit card number when split across fields.

components/autofill/core/browser/autofill_scanner.cc

Index: components/autofill/core/browser/autofill_scanner.cc
diff --git a/components/autofill/core/browser/autofill_scanner.cc b/components/autofill/core/browser/autofill_scanner.cc
index 418362e4c8cebca9563a8ace2f05fab7ac415a97..c233c1d3ef7c9395d533d6305945846041169c20 100644
--- a/components/autofill/core/browser/autofill_scanner.cc
+++ b/components/autofill/core/browser/autofill_scanner.cc
@@ -9,8 +9,7 @@
 
 namespace autofill {
 
-AutofillScanner::AutofillScanner(
-    const std::vector<const AutofillField*>& fields)
+AutofillScanner::AutofillScanner(std::vector<AutofillField*>& fields)
     : cursor_(fields.begin()),
       saved_cursor_(fields.begin()),
       begin_(fields.begin()),
@@ -25,7 +24,7 @@ void AutofillScanner::Advance() {
   ++cursor_;
 }
 
-const AutofillField* AutofillScanner::Cursor() const {
+AutofillField* AutofillScanner::Cursor() const {
   if (IsEnd()) {
     NOTREACHED();
     return NULL;