[Password Manager] Presave the form with generated password till successful login

components/password_manager/core/browser/password_manager.cc

Index: components/password_manager/core/browser/password_manager.cc
diff --git a/components/password_manager/core/browser/password_manager.cc b/components/password_manager/core/browser/password_manager.cc
index f734ef0010b49b527f7f87b5d5222a4e5044c519..d09d2f54c663beba50cd39a05d725c1b7db45072 100644
--- a/components/password_manager/core/browser/password_manager.cc
+++ b/components/password_manager/core/browser/password_manager.cc
@@ -178,6 +178,26 @@ void PasswordManager::GenerationAvailableForForm(const PasswordForm& form) {
   }
 }
 
+void PasswordManager::OnPresaveGeneratedPassword(
+    const autofill::PasswordForm& form) {
+  DCHECK(client_->IsSavingAndFillingEnabledForCurrentPage());
+  PasswordFormManager* form_manager = GetMatchingPendingManager(form);
+  if (form_manager) {
+    form_manager->PresaveGeneratedPassword(form);
+    return;
+  }
+}
+
+void PasswordManager::OnUpdatePresavedPassword(
+    const autofill::PasswordForm& form) {
+  DCHECK(client_->IsSavingAndFillingEnabledForCurrentPage());
+  PasswordFormManager* form_manager = GetMatchingPendingManager(form);
+  if (form_manager) {
+    form_manager->UpdatePresavedPassword(form);
+    return;
+  }
+}
+
 void PasswordManager::SetHasGeneratedPasswordForForm(
     password_manager::PasswordManagerDriver* driver,
     const PasswordForm& form,
@@ -186,6 +206,8 @@ void PasswordManager::SetHasGeneratedPasswordForForm(
 
   PasswordFormManager* form_manager = GetMatchingPendingManager(form);
   if (form_manager) {
+    if (!password_is_generated)
+      form_manager->RemovePresavedPassword();
     form_manager->set_has_generated_password(password_is_generated);
     return;
   }