### 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 BUILDFLAG(ENABLE_PLUGINS)
        && program != plugin_child_path
#endif
    ) {
      child_path = content::ChildProcessHost::GetChildPath(
          content::ChildProcessHost::CHILD_NORMAL);
      CHECK_EQ(program, child_path)
          << "Aborted from launching unexpected helper executable";
    }
#else
    if (!base::PathService::Get(content::CHILD_PROCESS_EXE, &child_path)) {
      CHECK(false) << "Unable to get child process binary name.";
    }
    SCOPED_CRASH_KEY_STRING256("ChildProcess", "child_process_exe",
                               child_path.AsUTF8Unsafe());
    SCOPED_CRASH_KEY_STRING256("ChildProcess", "program",
                               program.AsUTF8Unsafe());
    CHECK_EQ(program, child_path);
#endif
  }
  std::string process_type =
      command_line->GetSwitchValueASCII(::switches::kProcessType);
#if BUILDFLAG(IS_LINUX)
  bool enable_crash_reporter = false;
  if (crash_reporter::IsCrashpadEnabled()) {
    command_line->AppendSwitch(::switches::kEnableCrashpad);
    enable_crash_reporter = true;
    int fd;
    pid_t pid;
    if (crash_reporter::GetHandlerSocket(&fd, &pid)) {