Remove the very old code that migrated password data from the WebDataService to PasswordStore.

chrome/browser/password_manager/password_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 CHROME_BROWSER_PASSWORD_MANAGER_PASSWORD_MANAGER_H_
 #define CHROME_BROWSER_PASSWORD_MANAGER_PASSWORD_MANAGER_H_
 #pragma once
 
 #include <vector>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "base/stl_util.h"
 #include "chrome/browser/password_manager/password_form_manager.h"
 #include "chrome/browser/prefs/pref_member.h"
 #include "chrome/browser/ui/login/login_model.h"
 #include "content/public/browser/web_contents_observer.h"
 #include "webkit/forms/password_form.h"
 #include "webkit/forms/password_form_dom_manager.h"
 
 class PasswordManagerDelegate;
 class PasswordManagerTest;
 class PasswordFormManager;
 class PrefService;
 
 // Per-tab password manager. Handles creation and management of UI elements,
 // receiving password form data from the renderer and managing the password
-// database through the WebDataService. The PasswordManager is a LoginModel
+// database through the PasswordStore. The PasswordManager is a LoginModel
 // for purposes of supporting HTTP authentication dialogs.
 class PasswordManager : public LoginModel,
                         public content::WebContentsObserver {
  public:
   static void RegisterUserPrefs(PrefService* prefs);
 
   // The delegate passed in is required to outlive the PasswordManager.
   PasswordManager(content::WebContents* web_contents,
                   PasswordManagerDelegate* delegate);
 
@@ skipping 65 matching lines @@
   LoginModelObserver* observer_;
 
   // Set to false to disable the password manager (will no longer fill
   // passwords or ask you if you want to save passwords).
   BooleanPrefMember password_manager_enabled_;
 
   DISALLOW_COPY_AND_ASSIGN(PasswordManager);
 };
 
 #endif  // CHROME_BROWSER_PASSWORD_MANAGER_PASSWORD_MANAGER_H_