### Preflight Checklist

- [X] I have read the [Contributing Guidelines](https://github.com/electron/electron/blob/master/CONTRIBUTING.md) for this project.
- [X] I agree to follow the [Code of Conduct](https://github.com/electron/electron/blob/master/CODE_OF_CONDUCT.md) that this project adheres to.
- [X] I have searched the [issue tracker](https://www.github.com/electron/electron/issues) for a feature request that matches the one I want to file, without success.

### Electron Version

12.0.7

### What operating system are you using?

Ubuntu

### Operating System Version

5.4.0-73-generic #82~18.04.1-Ubuntu

### What arch are you using?

x64

### Last Known Working Electron version

_No response_

### Expected Behavior

`const existingPermissions = await navigator.serial.getPorts();` should return a list of serial ports for which permission has already been granted, even when a device has been unplugged and plugged back in again.

### Actual Behavior

The list is empty, even when the same code works in the browser (Chromium v90.0.4430.93).

### Testcase Gist URL

https://gist.github.com/gniezen/34950a5fa84dcf000e2b55a8d599ecd6

### Additional Information

To reproduce using gist:

- Replace `usbVendorId` and `usbProductId` with that of your test device.
- Click the `Connect` button. It should show up in the port list on the main console.
- Click the `Get Ports` button. It should show the existing permission in the developer console.
- Unplug and re-plug the device.
- Click the `Get Ports` button. It should show the existing permissions, but returns an empty list.
shell/browser/electron_browser_context.h
std::unique_ptr<content::ResourceContext> resource_context_;
  std::unique_ptr<CookieChangeNotifier> cookie_change_notifier_;
  std::unique_ptr<PrefService> prefs_;
  std::unique_ptr<ElectronDownloadManagerDelegate> download_manager_delegate_;
  std::unique_ptr<WebViewManager> guest_manager_;
  std::unique_ptr<ElectronPermissionManager> permission_manager_;
  std::unique_ptr<MediaDeviceIDSalt> media_device_id_salt_;
  scoped_refptr<ResolveProxyHelper> resolve_proxy_helper_;
  scoped_refptr<storage::SpecialStoragePolicy> storage_policy_;
  std::unique_ptr<predictors::PreconnectManager> preconnect_manager_;
  std::unique_ptr<ProtocolRegistry> protocol_registry_;
  std::string user_agent_;
  base::FilePath path_;
  bool in_memory_ = false;
  bool use_cache_ = true;
  int max_cache_size_ = 0;
#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
  
  extensions::ElectronExtensionSystem* extension_system_;
#endif
  
  scoped_refptr<network::SharedURLLoaderFactory> url_loader_factory_;
  network::mojom::SSLConfigPtr ssl_config_;
  mojo::Remote<network::mojom::SSLConfigClient> ssl_config_client_;
  base::WeakPtrFactory<ElectronBrowserContext> weak_factory_{this};
  DISALLOW_COPY_AND_ASSIGN(ElectronBrowserContext);
};
}  
#endif