Add a notification about auto-granted access to file systems.

chrome/browser/extensions/api/file_system/request_file_system_notification.h

+// Copyright 2015 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_EXTENSIONS_API_FILE_SYSTEM_REQUEST_FILE_SYSTEM_NOTIFICATION_H_
+#define CHROME_BROWSER_EXTENSIONS_API_FILE_SYSTEM_REQUEST_FILE_SYSTEM_NOTIFICATION_H_
+
+#include <string>
+
+#include "base/callback.h"
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/weak_ptr.h"
+#include "chrome/browser/extensions/app_icon_loader.h"
+#include "ui/message_center/notification_delegate.h"
+
+class Profile;
+
+namespace extensions {
+class Extension;
+}  // namespace extensions
+
+namespace file_manager {
+class Volume;
+}  // namespace file_manager
+
+namespace gfx {
+class Image;
+class ImageSkia;
+}  // namespace gfx
+
+namespace message_center {
+class Notification;
+}  // namespace message_center
+
+// Shows notifications for the chrome.fileSystem.requestFileSystem() API.
+class RequestFileSystemNotification
+    : public message_center::NotificationDelegate,
+      public extensions::AppIconLoader::Delegate {
+ public:
+  // Shows a notification about automatically granted access to a file system.
+  static void ShowAutoGrantedNotification(
+      Profile* profile,
+      const extensions::Extension& extension,
+      const base::WeakPtr<file_manager::Volume>& volume,
+      bool writable);
+
+  // extensions::AppIconLoader::Delegate overrides:
+  void SetAppImage(const std::string& id, const gfx::ImageSkia& image) override;

[benwells, 2015/04/07 08:31:33]

Nit: this can be private

[mtomasz, 2015/04/08 00:30:46]

Done.

+
+ private:
+  RequestFileSystemNotification(Profile* profile,
+                                const extensions::Extension& extension);
+  ~RequestFileSystemNotification() override;
+
+  // Shows the notification. Can be called only once.
+  void Show(scoped_ptr<message_center::Notification> notification);
+
+  scoped_ptr<extensions::AppIconLoader> icon_loader_;
+  scoped_ptr<gfx::Image> extension_icon_;
+  scoped_ptr<message_center::Notification> pending_notification_;
+
+  DISALLOW_COPY_AND_ASSIGN(RequestFileSystemNotification);
+};
+
+#endif  // CHROME_BROWSER_EXTENSIONS_API_FILE_SYSTEM_REQUEST_FILE_SYSTEM_NOTIFICATION_H_