Implement the statistics table for the passwords.

components/password_manager/core/browser/password_store_default.h

Index: components/password_manager/core/browser/password_store_default.h
diff --git a/components/password_manager/core/browser/password_store_default.h b/components/password_manager/core/browser/password_store_default.h
index ecfd38ffab2b8c6ee34c50d6b257f5daf3866ce7..ab020048141f60b49426c7b87dc356115d641109 100644
--- a/components/password_manager/core/browser/password_store_default.h
+++ b/components/password_manager/core/browser/password_store_default.h
@@ -59,8 +59,11 @@ class PasswordStoreDefault : public PasswordStore {
       ScopedVector<autofill::PasswordForm>* forms) override;
   bool FillBlacklistLogins(
       ScopedVector<autofill::PasswordForm>* forms) override;
+  void AddSiteStatsImpl(const InteractionsStats& stats) override;
+  void RemoveSiteStatsImpl(const GURL& origin_domain) override;
+  scoped_ptr<InteractionsStats> GetSiteStatsImpl(
+      const GURL& origin_domain) override;
 
- protected:
   inline bool DeleteAndRecreateDatabaseFile() {
     return login_db_->DeleteAndRecreateDatabaseFile();
   }