notifications: Remove NotificationExceptionsTableModel as it's no longer used.

chrome/browser/notifications/notification_exceptions_table_model.h

-// Copyright (c) 2011 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_NOTIFICATIONS_NOTIFICATION_EXCEPTIONS_TABLE_MODEL_H_
-#define CHROME_BROWSER_NOTIFICATIONS_NOTIFICATION_EXCEPTIONS_TABLE_MODEL_H_
-#pragma once
-
-#include <vector>
-
-#include "base/compiler_specific.h"
-#include "chrome/browser/notifications/desktop_notification_service.h"
-#include "chrome/browser/remove_rows_table_model.h"
-#include "content/common/notification_observer.h"
-
-class NotificationExceptionsTableModel : public RemoveRowsTableModel,
-                                         public NotificationObserver {
- public:
-  explicit NotificationExceptionsTableModel(
-      DesktopNotificationService* service);
-  virtual ~NotificationExceptionsTableModel();
-
-  // Overridden from RemoveRowsTableModel:
-  virtual bool CanRemoveRows(const Rows& rows) const;
-  virtual void RemoveRows(const Rows& rows);
-  virtual void RemoveAll();
-
-  // Overridden from TableModel:
-  virtual int RowCount() OVERRIDE;
-  virtual string16 GetText(int row, int column_id) OVERRIDE;
-  virtual void SetObserver(ui::TableModelObserver* observer) OVERRIDE;
-
-  // Overridden from NotificationObserver:
-  virtual void Observe(int type,
-                       const NotificationSource& source,
-                       const NotificationDetails& details);
- private:
-  struct Entry;
-
-  void LoadEntries();
-
-  DesktopNotificationService* service_;
-
-  typedef std::vector<Entry> EntriesVector;
-  EntriesVector entries_;
-
-  // We use this variable to prevent ourselves from handling further changes
-  // that we ourselves caused.
-  bool updates_disabled_;
-  NotificationRegistrar registrar_;
-  ui::TableModelObserver* observer_;
-
-  DISALLOW_COPY_AND_ASSIGN(NotificationExceptionsTableModel);
-};
-
-#endif  // CHROME_BROWSER_NOTIFICATIONS_NOTIFICATION_EXCEPTIONS_TABLE_MODEL_H_