[Autofill] Log the number of stored local credit cards

components/autofill/core/browser/personal_data_manager.cc

Index: components/autofill/core/browser/personal_data_manager.cc
diff --git a/components/autofill/core/browser/personal_data_manager.cc b/components/autofill/core/browser/personal_data_manager.cc
index 3ef8d1d04b8ed0a411362676001f72a0d629f319..841f45469f7588627bc57a90aaf8b5ec42282aaa 100644
--- a/components/autofill/core/browser/personal_data_manager.cc
+++ b/components/autofill/core/browser/personal_data_manager.cc
@@ -212,7 +212,8 @@ PersonalDataManager::PersonalDataManager(const std::string& app_locale)
       pref_service_(NULL),
       account_tracker_(NULL),
       is_off_the_record_(false),
-      has_logged_profile_count_(false) {}
+      has_logged_profile_count_(false),
+      has_logged_credit_card_count_(false) {}
 
 void PersonalDataManager::Init(scoped_refptr<AutofillWebDataService> database,
                                PrefService* pref_service,
@@ -296,6 +297,7 @@ void PersonalDataManager::OnWebDataServiceRequestDone(
       if (h == pending_creditcards_query_) {
         ReceiveLoadedDbValues(h, result, &pending_creditcards_query_,
                               &local_credit_cards_);
+        LogLocalCreditCardCount();
       } else {
         ReceiveLoadedDbValues(h, result, &pending_server_creditcards_query_,
                               &server_credit_cards_);
@@ -1191,6 +1193,13 @@ void PersonalDataManager::LogProfileCount() const {
   }
 }
 
+void PersonalDataManager::LogLocalCreditCardCount() const {
+  if (!has_logged_credit_card_count_) {
+    AutofillMetrics::LogStoredLocalCreditCardCount(local_credit_cards_.size());
+    has_logged_credit_card_count_ = true;
+  }
+}
+
 std::string PersonalDataManager::MostCommonCountryCodeFromProfiles() const {
   if (!IsAutofillEnabled())
     return std::string();