Experiment to add bank name in autofill ui.

components/autofill/core/browser/autofill_manager.cc

Index: components/autofill/core/browser/autofill_manager.cc
diff --git a/components/autofill/core/browser/autofill_manager.cc b/components/autofill/core/browser/autofill_manager.cc
index ed9915a7532917eef08021661276d8d9f2dd7efc..e40f6ae40b5be5e3518235bf764aa5a8d7822bc3 100644
--- a/components/autofill/core/browser/autofill_manager.cc
+++ b/components/autofill/core/browser/autofill_manager.cc
@@ -1987,11 +1987,15 @@ std::vector<Suggestion> AutofillManager::GetCreditCardSuggestions(
     const AutofillType& type) const {
   credit_card_form_event_logger_->OnDidPollSuggestions(field);
 
+  bool isBankNameAvailable = false;
   // The field value is sanitized before attempting to match it to the user's
   // data.
   std::vector<Suggestion> suggestions =
       personal_data_->GetCreditCardSuggestions(
-          type, SanitizeCreditCardFieldValue(field.value));
+          type, SanitizeCreditCardFieldValue(field.value), isBankNameAvailable);

[sebsg, 2017/06/12 21:17:00]

I'm not a fan of setting a value in functions like this. It makes it more
complicated to figure out what the function does. 

Since the work is pretty simple, I propose simply iterating over the cards to
suggest here and checking if on has a bank name.

[Shanfeng, 2017/06/12 23:34:58]

Done.

+  if (isBankNameAvailable) {
+    credit_card_form_event_logger_->SetBankNameAvailable();
+  }
   for (size_t i = 0; i < suggestions.size(); i++) {
     suggestions[i].frontend_id =
         MakeFrontendID(suggestions[i].backend_id, std::string());