Use OnceCallback on Mojo interfaces in //components/autofill

components/password_manager/content/browser/content_password_manager_driver_unittest.cc

Index: components/password_manager/content/browser/content_password_manager_driver_unittest.cc
diff --git a/components/password_manager/content/browser/content_password_manager_driver_unittest.cc b/components/password_manager/content/browser/content_password_manager_driver_unittest.cc
index 95c0809d2ebfacd6afa36f2a51999f80c2bb7491..ad3549360668c6a99d528bc48428939dc2114e34 100644
--- a/components/password_manager/content/browser/content_password_manager_driver_unittest.cc
+++ b/components/password_manager/content/browser/content_password_manager_driver_unittest.cc
@@ -89,7 +89,7 @@ class FakePasswordAutofillAgent
       const autofill::FormsPredictionsMap& predictions) override {}
 
   void FindFocusedPasswordForm(
-      const FindFocusedPasswordFormCallback& callback) override {}
+      FindFocusedPasswordFormCallback callback) override {}
 
   // Records whether SetLoggingState() gets called.
   bool called_set_logging_state_;