Refactor MessageCenterSettingsController.

chrome/browser/notifications/web_page_notifier_source.h

+// Copyright (c) 2016 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_WEB_PAGE_NOTIFIER_SOURCE_H_
+#define CHROME_BROWSER_NOTIFICATIONS_WEB_PAGE_NOTIFIER_SOURCE_H_
+
+#include "chrome/browser/notifications/notifier_source.h"
+#include "components/content_settings/core/common/content_settings_pattern.h"
+
+namespace base {
+class CancelableTaskTracker;
+}
+
+namespace favicon_base {
+struct FaviconImageResult;
+}
+
+class WebPageNotifiereSource : public NotifierSource {
+ public:
+  explicit WebPageNotifiereSource(Observer* observer);
+  ~WebPageNotifiereSource() override;
+
+  std::vector<std::unique_ptr<message_center::Notifier>> GetNotifierList(
+      Profile* profile) override;
+
+  void SetNotifierEnabled(Profile* profile,
+                          const message_center::Notifier& notifier,
+                          bool enabled) override;
+
+  void OnNotifierSettingsClosing() override;
+
+  message_center::NotifierId::NotifierType GetNotifierType() override;
+
+ private:
+  void OnFaviconLoaded(const GURL& url,
+                       const favicon_base::FaviconImageResult& favicon_result);
+
+  std::map<base::string16, ContentSettingsPattern> patterns_;
+
+  // The task tracker for loading favicons.
+  std::unique_ptr<base::CancelableTaskTracker> favicon_tracker_;
+
+  // Lifetime of parent must be longer than the source.
+  Observer* observer_;
+};
+
+#endif  // CHROME_BROWSER_NOTIFICATIONS_WEB_PAGE_NOTIFIER_SOURCE_H_