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

components/autofill/content/renderer/password_generation_agent.h

 // Copyright 2013 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 COMPONENTS_AUTOFILL_CONTENT_RENDERER_PASSWORD_GENERATION_AGENT_H_
 #define COMPONENTS_AUTOFILL_CONTENT_RENDERER_PASSWORD_GENERATION_AGENT_H_
 
 #include <stddef.h>
 
 #include <map>
@@ skipping 89 matching lines @@
   // Show UI for editing a generated password at |generation_element_|.
   void ShowEditingPopup();
 
   // Hides a password generation popup if one exists.
   void HidePopup();
 
   // Sets |generation_element_| to the focused password field and shows a
   // generation popup at this field.
   void OnUserTriggeredGeneratePassword();
 
+  // Creates a password form to presave a generated password. It copies behavior
+  // of CreatePasswordFormFromWebForm/FromUnownedInputElements, but takes
+  // |password_value| from |generation_element_| and empties |username_value|.
+  // If a form creating is failed, returns an empty unique_ptr.
+  std::unique_ptr<PasswordForm> CreatePasswordFormToPresave();
+
   // Stores forms that are candidates for account creation.
   AccountCreationFormDataList possible_account_creation_forms_;
 
   // Stores the origins of the password forms confirmed not to be blacklisted
   // by the browser. A form can be blacklisted if a user chooses "never save
   // passwords for this site".
   std::vector<GURL> not_blacklisted_password_form_origins_;
 
   // Stores each password form for which the Autofill server classifies one of
   // the form's fields as an ACCOUNT_CREATION_PASSWORD or NEW_PASSWORD. These
@@ skipping 38 matching lines @@
   // Unowned pointer. Used to notify PassowrdAutofillAgent when values
   // in password fields are updated.
   PasswordAutofillAgent* password_agent_;
 
   DISALLOW_COPY_AND_ASSIGN(PasswordGenerationAgent);
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CONTENT_RENDERER_PASSWORD_GENERATION_AGENT_H_