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

ios/chrome/browser/passwords/ios_chrome_update_password_infobar_delegate.h

 // Copyright 2016 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.
 
 #ifndef IOS_CHROME_BROWSER_PASSWORDS_IOS_CHROME_UPDATE_PASSWORD_INFOBAR_DELEGATE_H_
 #define IOS_CHROME_BROWSER_PASSWORDS_IOS_CHROME_UPDATE_PASSWORD_INFOBAR_DELEGATE_H_
 
 #include <memory>
 
 #include "base/macros.h"
 #include "ios/chrome/browser/passwords/ios_chrome_password_manager_infobar_delegate.h"
 
 namespace password_manager {
 class PasswordFormManager;
 }
 
 namespace infobars {
 class InfoBarManager;
 }
 @class NSArray;
 
 class IOSChromeUpdatePasswordInfoBarDelegate
     : public IOSChromePasswordManagerInfoBarDelegate {
  public:
   // Creates the infobar for |form_to_save| and adds it to |infobar_manager|.
   // |is_smart_lock_enabled| controls the branding string.
   static void Create(
       bool is_smart_lock_branding_enabled,
       infobars::InfoBarManager* infobar_manager,
-      std::unique_ptr<password_manager::PasswordFormManager> form_to_save);
+      scoped_refptr<password_manager::PasswordFormManager> form_to_save);
 
   ~IOSChromeUpdatePasswordInfoBarDelegate() override;
 
   // Returns whether the user has multiple saved credentials, of which the
   // infobar affects just one. If so, the infobar should clarify which
   // credential is being affected.
   bool ShowMultipleAccounts() const;
 
   // Returns an array of credentials. Applicable if the user has multiple
   // saved credentials for the site |form_to_save| is applied to.
   NSArray* GetAccounts() const;
 
   base::string16 selected_account() const { return selected_account_; }
 
   void set_selected_account(base::string16 account) {
     selected_account_ = account;
   };
 
  private:
   IOSChromeUpdatePasswordInfoBarDelegate(
       bool is_smart_lock_branding_enabled,
-      std::unique_ptr<password_manager::PasswordFormManager> form_to_save);
+      scoped_refptr<password_manager::PasswordFormManager> form_to_save);
 
   // Returns the string with the branded title of the password manager (e.g.
   // "Google Smart Lock for Passwords").
   base::string16 GetBranding() const;
 
   // ConfirmInfoBarDelegate implementation.
   infobars::InfoBarDelegate::InfoBarIdentifier GetIdentifier() const override;
   base::string16 GetMessageText() const override;
   int GetButtons() const override;
   base::string16 GetButtonLabel(InfoBarButton button) const override;
   bool Accept() override;
 
   // The credential that should be displayed in the infobar, and for which the
   // password will be updated.
   base::string16 selected_account_;
 };
 
 #endif  // IOS_CHROME_BROWSER_PASSWORDS_IOS_CHROME_UPDATE_PASSWORD_INFOBAR_DELEGATE_H_