Remove test-only constructor from CreditCard.

chrome/browser/browsing_data/autofill_counter_browsertest.cc

Index: chrome/browser/browsing_data/autofill_counter_browsertest.cc
diff --git a/chrome/browser/browsing_data/autofill_counter_browsertest.cc b/chrome/browser/browsing_data/autofill_counter_browsertest.cc
index 5b123e2160fb4fcde2c7561ae2bb5824a61e1ec9..fb4e9759aeae56c1b3f4a35793c8042fa8f04582 100644
--- a/chrome/browser/browsing_data/autofill_counter_browsertest.cc
+++ b/chrome/browser/browsing_data/autofill_counter_browsertest.cc
@@ -69,11 +69,11 @@ class AutofillCounterTest : public InProcessBrowserTest {
   void AddCreditCard(const std::string& card_number,
                      int exp_month,
                      int exp_year) {
-    autofill::CreditCard card(
-        base::ASCIIToUTF16(card_number), exp_month, exp_year);
-    std::string id = base::GenerateGUID();
-    credit_card_ids_.push_back(id);
-    card.set_guid(id);
+    autofill::CreditCard card(base::GenerateGUID(), std::string());
+    card.SetNumber(base::ASCIIToUTF16(card_number));
+    card.SetExpirationMonth(exp_month);
+    card.SetExpirationYear(exp_year);
+    credit_card_ids_.push_back(card.guid());
     web_data_service_->AddCreditCard(card);
   }