Implement the UI logic behind the Sign In promo in the password bubble

chrome/browser/ui/passwords/passwords_model_delegate.h

 // Copyright 2015 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 CHROME_BROWSER_UI_PASSWORDS_PASSWORDS_MODEL_DELEGATE_H_
 #define CHROME_BROWSER_UI_PASSWORDS_PASSWORDS_MODEL_DELEGATE_H_
 
 #include <vector>
 
 #include "components/password_manager/core/common/credential_manager_types.h"
@@ skipping 70 matching lines @@
   virtual void ChooseCredential(
       autofill::PasswordForm form,
       password_manager::CredentialType credential_type) = 0;
 
   // Open a new tab pointing to passwords.google.com.
   virtual void NavigateToExternalPasswordManager() = 0;
   // Open a new tab, pointing to the Smart Lock help article.
   virtual void NavigateToSmartLockHelpPage() = 0;
   // Open a new tab, pointing to the password manager settings page.
   virtual void NavigateToPasswordManagerSettingsPage() = 0;
+  // Starts the Chrome Sign in flow.
+  virtual void NavigateToChromeSignIn() = 0;
 
   // Called from the dialog controller when the dialog is hidden.
   virtual void OnDialogHidden() = 0;
 
  protected:
   virtual ~PasswordsModelDelegate() = default;
 };
 
 // Returns ManagePasswordsUIController instance for |contents|
 PasswordsModelDelegate* PasswordsModelDelegateFromWebContents(
     content::WebContents* web_contents);
 
 #endif  // CHROME_BROWSER_UI_PASSWORDS_PASSWORDS_MODEL_DELEGATE_H_