Revert the password manager refactoring -- it failed reliability tests.

chrome/browser/password_manager/password_store_gnome.h

-// Copyright (c) 2006-2009 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_GNOME
-#define CHROME_BROWSER_PASSWORD_MANAGER_PASSWORD_STORE_GNOME
-
-extern "C" {
-#include <gnome-keyring.h>
-}
-
-#include "base/lock.h"
-#include "chrome/browser/password_manager/password_store.h"
-
-class Profile;
-class Task;
-
-// PasswordStore implementation using Gnome Keyring.
-class PasswordStoreGnome : public PasswordStore {
- public:
-  PasswordStoreGnome();
-  virtual ~PasswordStoreGnome();
-
-  virtual bool Init();
-
- private:
-  void AddLoginImpl(const PasswordForm& form);
-  void UpdateLoginImpl(const PasswordForm& form);
-  void RemoveLoginImpl(const PasswordForm& form);
-  void GetLoginsImpl(GetLoginsRequest* request);
-
-  static const GnomeKeyringPasswordSchema kGnomeSchema;
-
-  // Mutex for all interactions with Gnome Keyring.
-  Lock gnome_keyring_lock_;
-
-  DISALLOW_COPY_AND_ASSIGN(PasswordStoreGnome);
-};
-
-#endif  // CHROME_BROWSER_PASSWORD_MANAGER_PASSWORD_STORE_GNOME