### 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
DCHECK_CURRENTLY_ON(BrowserThread::IO);
  g_io_thread_application_locale.Get() = locale;
}
void BindNetworkHintsHandler(
    content::RenderFrameHost* frame_host,
    mojo::PendingReceiver<network_hints::mojom::NetworkHintsHandler> receiver) {
  NetworkHintsHandlerImpl::Create(frame_host, std::move(receiver));
}
#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
enum class RenderProcessHostPrivilege {
  kNormal,
  kHosted,
  kIsolated,
  kExtension,
};
bool AllowFileAccess(const std::string& extension_id,
                     content::BrowserContext* context) {
  return base::CommandLine::ForCurrentProcess()->HasSwitch(
             ::switches::kDisableExtensionsFileAccessCheck) ||
         extensions::ExtensionPrefs::Get(context)->AllowFileAccess(
             extension_id);
}
RenderProcessHostPrivilege GetPrivilegeRequiredByUrl(