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

chrome/browser/password_manager/password_store_win.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_STORE_WIN_H_
 #define CHROME_BROWSER_PASSWORD_MANAGER_PASSWORD_STORE_WIN_H_
 #pragma once
 
 #include "base/memory/scoped_ptr.h"
 #include "chrome/browser/password_manager/password_store_default.h"
 
 class LoginDatabase;
 class Profile;
 class WebDataService;
 
 namespace webkit {
 namespace forms {
 struct PasswordForm;
 }
 }
 
 // Windows PasswordStore implementation that uses the default implementation,
 // but also uses IE7 passwords if no others found.
 class PasswordStoreWin : public PasswordStoreDefault {
  public:
-  // FilePath specifies path to WebDatabase.
+  // WebDataService is only used for IE7 password fetching.
   PasswordStoreWin(LoginDatabase* login_database,
                    Profile* profile,
                    WebDataService* web_data_service);
 
   // RefcountedProfileKeyedService:
   virtual void ShutdownOnUIThread() OVERRIDE;
 
  private:
   class DBHandler;
 
@@ skipping 11 matching lines @@
   // Overridden so that we can save the form for later use.
   virtual void GetLoginsImpl(GetLoginsRequest* request,
                              const webkit::forms::PasswordForm& form) OVERRIDE;
 
   scoped_ptr<DBHandler> db_handler_;
 
   DISALLOW_COPY_AND_ASSIGN(PasswordStoreWin);
 };
 
 #endif  // CHROME_BROWSER_PASSWORD_MANAGER_PASSWORD_STORE_WIN_H_