[Password Manager] Modified to support saving passwords on forms without username fields.

components/password_manager/core/browser/password_form_manager.h

 // Copyright (c) 2012 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_PASSWORD_MANAGER_CORE_BROWSER_PASSWORD_FORM_MANAGER_H_
 #define COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_PASSWORD_FORM_MANAGER_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 82 matching lines @@
   // Used by PasswordManager to determine whether or not to display
   // a SavePasswordBar when given the green light to save the PasswordForm
   // managed by this.
   bool IsNewLogin();
 
   // Returns true if the current pending credentials were found using
   // origin matching of the public suffix, instead of the signon realm of the
   // form.
   bool IsPendingCredentialsPublicSuffixMatch();
 
-  // Checks if the form is a valid password form. Forms which lack either
-  // login or password field are not considered valid.
+  // Checks if the form is a valid password form. Forms which lack password
+  // field are not considered valid.
   bool HasValidPasswordForm();
 
   // These functions are used to determine if this form has had it's password
   // auto generated by the browser.
   bool HasGeneratedPassword();
   void SetHasGeneratedPassword();
 
   // Determines if we need to autofill given the results of the query.
   // Takes ownership of the elements in |result|.
   void OnRequestDone(const std::vector<autofill::PasswordForm*>& result);
@@ skipping 219 matching lines @@
   ManagerAction manager_action_;
   UserAction user_action_;
   SubmitResult submit_result_;
 
   DISALLOW_COPY_AND_ASSIGN(PasswordFormManager);
 };
 
 }  // namespace password_manager
 
 #endif  // COMPONENTS_PASSWORD_MANAGER_CORE_BROWSER_PASSWORD_FORM_MANAGER_H_