Deprecate per notification type delegates.

chrome/browser/notifications/notification_object_proxy.cc

-// 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.
-
-#include "chrome/browser/notifications/notification_object_proxy.h"
-
-#include <utility>
-
-#include "base/logging.h"
-#include "chrome/browser/notifications/platform_notification_service_impl.h"
-#include "content/public/browser/desktop_notification_delegate.h"
-#include "url/gurl.h"
-
-NotificationObjectProxy::NotificationObjectProxy(
-    content::BrowserContext* browser_context,
-    const std::string& notification_id,
-    const GURL& origin,
-    std::unique_ptr<content::DesktopNotificationDelegate> delegate)
-    : WebNotificationDelegate(browser_context, notification_id, origin),
-      delegate_(std::move(delegate)),
-      displayed_(false) {}
-
-NotificationObjectProxy::~NotificationObjectProxy() {}
-
-void NotificationObjectProxy::Display() {
-  // This method is called each time the notification is shown to the user
-  // but we only want to fire the event the first time.
-  if (displayed_)
-    return;
-
-  displayed_ = true;
-
-  delegate_->NotificationDisplayed();
-}
-
-void NotificationObjectProxy::Close(bool by_user) {
-  delegate_->NotificationClosed();
-}
-
-void NotificationObjectProxy::Click() {
-  delegate_->NotificationClick();
-}
-
-void NotificationObjectProxy::ButtonClick(int button_index) {
-  // Notification buttons not are supported for non persistent notifications.
-  DCHECK_EQ(button_index, 0);
-
-  NotificationCommon::OpenNotificationSettings(browser_context());
-}