PasswordStore: Clean up expectations about rewriting vectors of forms

components/password_manager/core/browser/test_password_store.cc

Index: components/password_manager/core/browser/test_password_store.cc
diff --git a/components/password_manager/core/browser/test_password_store.cc b/components/password_manager/core/browser/test_password_store.cc
index f38f8ed3ad188d34df61ad37fd047cf23f9d7089..6de51f03ae76366e0a218988a89dbfe4ba50dea1 100644
--- a/components/password_manager/core/browser/test_password_store.cc
+++ b/components/password_manager/core/browser/test_password_store.cc
@@ -131,11 +131,13 @@ void TestPasswordStore::GetBlacklistLoginsImpl(
 
 bool TestPasswordStore::FillAutofillableLogins(
     ScopedVector<autofill::PasswordForm>* forms) {
+  forms->clear();
   return true;
 }
 
 bool TestPasswordStore::FillBlacklistLogins(
     ScopedVector<autofill::PasswordForm>* forms) {
+  forms->clear();
   return true;
 }