### 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

13.1.7

### What operating system are you using?

Windows

### Operating System Version

Windows 10 version 20H2

### What arch are you using?

x64

### Last Known Working Electron version

12.0.15

### Expected Behavior

Checking `navigator.userAgentData` in Chrome 91 returns an array of brands appropriately. Electron 13/14 do not return anything.

This appears to then become a problem for my situation. I am posting a form with hidden variables to a third-party vendor I work with. This form post ultimately loads an iframe.

Expected: As it does in Chrome 91, load the iframe from this third-party vendor.

### Actual Behavior

A header of "sec-ch-ua" is included in the request to the third-party vendor and it is blank. They are rejecting the post because of an invalid header. I suspect this is because Chrome 13/14 does not make this hint data made available correctly.

I tried loading various sites in Chrome 91 that do load brand names in Electron 13/14 and they are empty if you review `navigator.userAgentData`.

### Testcase Gist URL

_No response_

### Additional Information

_No response_
shell/browser/electron_browser_client.cc
if (!web_observer)
    return;
  const extensions::Extension* extension =
      web_observer->GetExtensionFromFrame(frame_host, false);
  if (!extension)
    return;
  
  if (extension->is_extension() &&
      extensions::Manifest::IsComponentLocation(extension->location())) {
    
    
    factories->emplace(content::kChromeUIScheme,
                       content::CreateWebUIURLLoaderFactory(
                           frame_host, content::kChromeUIScheme,
                           {content::kChromeUIResourcesHost}));
  }
  
  
  
  extensions::Manifest::Type type = extension->GetType();
  if (type == extensions::Manifest::TYPE_EXTENSION &&
      AllowFileAccess(extension->id(), web_contents->GetBrowserContext())) {
    factories->emplace(url::kFileScheme,
                       FileURLLoaderFactory::Create(render_process_id));
  }
#endif
}
void ElectronBrowserClient::