Do not try to pop up the account chooser if there is no browser window.

chrome/browser/ui/passwords/manage_passwords_ui_controller.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/passwords/manage_passwords_ui_controller.h"
 
 #include <utility>
 
 #include "base/auto_reset.h"
 #include "chrome/app/chrome_command_ids.h"
@@ skipping 82 matching lines @@
   bubble_status_ = SHOULD_POP_UP;
   UpdateBubbleAndIconVisibility();
 }
 
 bool ManagePasswordsUIController::OnChooseCredentials(
     std::vector<std::unique_ptr<autofill::PasswordForm>> local_credentials,
     std::vector<std::unique_ptr<autofill::PasswordForm>> federated_credentials,
     const GURL& origin,
     const ManagePasswordsState::CredentialsCallback& callback) {
   DCHECK(!local_credentials.empty() || !federated_credentials.empty());
+  if (!HasBrowserWindow())
+    return false;
   PasswordDialogController::FormsVector locals =
       CopyFormVector(local_credentials);
   PasswordDialogController::FormsVector federations =
       CopyFormVector(federated_credentials);
   passwords_data_.OnRequestCredentials(
       std::move(local_credentials), std::move(federated_credentials), origin);
   passwords_data_.set_credentials_callback(callback);
   dialog_controller_.reset(new PasswordDialogControllerImpl(
       Profile::FromBrowserContext(web_contents()->GetBrowserContext()),
       this));
@@ skipping 293 matching lines @@
 AccountChooserPrompt* ManagePasswordsUIController::CreateAccountChooser(
     PasswordDialogController* controller) {
   return CreateAccountChooserPromptView(controller, web_contents());
 }
 
 AutoSigninFirstRunPrompt* ManagePasswordsUIController::CreateAutoSigninPrompt(
     PasswordDialogController* controller) {
   return CreateAutoSigninPromptView(controller, web_contents());
 }
 
+bool ManagePasswordsUIController::HasBrowserWindow() const {
+  return chrome::FindBrowserWithWebContents(web_contents()) != nullptr;
+}
+
 void ManagePasswordsUIController::DidNavigateMainFrame(
     const content::LoadCommittedDetails& details,
     const content::FrameNavigateParams& params) {
   // Don't react to in-page (fragment) navigations.
   if (details.is_in_page)
     return;
 
   // It is possible that the user was not able to interact with the password
   // bubble.
   if (bubble_status_ == SHOWN || bubble_status_ == SHOWN_PENDING_ICON_UPDATE)
@@ skipping 25 matching lines @@
     passwords_data_.TransitionToState(password_manager::ui::MANAGE_STATE);
   }
 }
 
 void ManagePasswordsUIController::WebContentsDestroyed() {
   password_manager::PasswordStore* password_store =
       GetPasswordStore(web_contents());
   if (password_store)
     password_store->RemoveObserver(this);
 }