Add ShouldDisplayOverFullscreen support to web notifications.

chrome/browser/notifications/persistent_notification_delegate.cc

 // Copyright 2014 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/persistent_notification_delegate.h"
 
 #include "chrome/browser/notifications/platform_notification_service_impl.h"
+#include "url/gurl.h"
 
 PersistentNotificationDelegate::PersistentNotificationDelegate(
     content::BrowserContext* browser_context,
     const std::string& notification_id,
     const GURL& origin,
     int notification_settings_index)
-    : browser_context_(browser_context),
-      notification_id_(notification_id),
-      origin_(origin),
+    : WebNotificationDelegate(browser_context, notification_id, origin),
       notification_settings_index_(notification_settings_index) {}
 
 PersistentNotificationDelegate::~PersistentNotificationDelegate() {}
 
 void PersistentNotificationDelegate::Display() {}
 
 void PersistentNotificationDelegate::Close(bool by_user) {
   PlatformNotificationServiceImpl::GetInstance()->OnPersistentNotificationClose(
-      browser_context_, notification_id_, origin_, by_user);
+      browser_context(), id(), origin(), by_user);
 }
 
 void PersistentNotificationDelegate::Click() {
   PlatformNotificationServiceImpl::GetInstance()->OnPersistentNotificationClick(
-      browser_context_, notification_id_, origin_, -1 /* action_index */);
+      browser_context(), id(), origin(), -1 /* action_index */);
 }
 
 void PersistentNotificationDelegate::ButtonClick(int button_index) {
   DCHECK_GE(button_index, 0);
   if (button_index == notification_settings_index_) {
-    NotificationCommon::OpenNotificationSettings(browser_context_);
+    NotificationCommon::OpenNotificationSettings(browser_context());
     return;
   }
 
   PlatformNotificationServiceImpl::GetInstance()->OnPersistentNotificationClick(
-      browser_context_, notification_id_, origin_, button_index);
+      browser_context(), id(), origin(), button_index);
 }
-
-void PersistentNotificationDelegate::SettingsClick() {
-  NotificationCommon::OpenNotificationSettings(browser_context_);
-}
-
-bool PersistentNotificationDelegate::ShouldDisplaySettingsButton() {
-  return true;
-}
-
-std::string PersistentNotificationDelegate::id() const {
-  return notification_id_;
-}