[Password Manager] Convert |pending_login_managers_| to an array of scoped_refptr

chrome/browser/password_manager/chrome_password_manager_client.h

Index: chrome/browser/password_manager/chrome_password_manager_client.h
diff --git a/chrome/browser/password_manager/chrome_password_manager_client.h b/chrome/browser/password_manager/chrome_password_manager_client.h
index 9ec30cfa1399514c64aaa48ce93351bf595799ff..15ae86a9c64f27485d74308a4d9bf129d4dd0a95 100644
--- a/chrome/browser/password_manager/chrome_password_manager_client.h
+++ b/chrome/browser/password_manager/chrome_password_manager_client.h
@@ -53,7 +53,7 @@ class ChromePasswordManagerClient
                             const HSTSCallback& callback) const override;
   bool OnCredentialManagerUsed() override;
   bool PromptUserToSaveOrUpdatePassword(
-      std::unique_ptr<password_manager::PasswordFormManager> form_to_save,
+      scoped_refptr<password_manager::PasswordFormManager> form_to_save,
       bool update_password) override;
   bool PromptUserToChooseCredentials(
       std::vector<std::unique_ptr<autofill::PasswordForm>> local_forms,
@@ -70,7 +70,7 @@ class ChromePasswordManagerClient
       const autofill::PasswordForm& form) override;
   void NotifyStorePasswordCalled() override;
   void AutomaticPasswordSave(
-      std::unique_ptr<password_manager::PasswordFormManager> saved_form_manager)
+      scoped_refptr<password_manager::PasswordFormManager> saved_form_manager)
       override;
   void PasswordWasAutofilled(
       const std::map<base::string16, const autofill::PasswordForm*>&