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

chrome/browser/ui/passwords/manage_passwords_state.cc

Index: chrome/browser/ui/passwords/manage_passwords_state.cc
diff --git a/chrome/browser/ui/passwords/manage_passwords_state.cc b/chrome/browser/ui/passwords/manage_passwords_state.cc
index 81e1421f27ccc984aa752523a517f41d2aab6a8c..b99c9fcad0a4088d05f1406d7a26b8b53d95fb08 100644
--- a/chrome/browser/ui/passwords/manage_passwords_state.cc
+++ b/chrome/browser/ui/passwords/manage_passwords_state.cc
@@ -80,7 +80,7 @@
 ManagePasswordsState::~ManagePasswordsState() {}
 
 void ManagePasswordsState::OnPendingPassword(
-    scoped_refptr<password_manager::PasswordFormManager> form_manager) {
+    std::unique_ptr<password_manager::PasswordFormManager> form_manager) {
   ClearData();
   form_manager_ = std::move(form_manager);
   local_credentials_forms_ =
@@ -92,7 +92,7 @@
 }
 
 void ManagePasswordsState::OnUpdatePassword(
-    scoped_refptr<password_manager::PasswordFormManager> form_manager) {
+    std::unique_ptr<password_manager::PasswordFormManager> form_manager) {
   ClearData();
   form_manager_ = std::move(form_manager);
   local_credentials_forms_ =
@@ -123,7 +123,7 @@
 }
 
 void ManagePasswordsState::OnAutomaticPasswordSave(
-    scoped_refptr<PasswordFormManager> form_manager) {
+    std::unique_ptr<PasswordFormManager> form_manager) {
   ClearData();
   form_manager_ = std::move(form_manager);
   local_credentials_forms_.reserve(form_manager_->best_matches().size());
@@ -222,7 +222,7 @@
 }
 
 void ManagePasswordsState::ClearData() {
-  form_manager_ = nullptr;
+  form_manager_.reset();
   local_credentials_forms_.clear();
   credentials_callback_.Reset();
 }