Will be nice to clear auth credentials. For example, I'm using a proxy that accepts options via username:

```
proxy.com:8080
user: wiliam_country_US
```

So, if I want to change the peer node, I change my username:

```
proxy.com:8080
user: wiliam_country_GB
```

But, I'm not changing the proxy, so electron has valid credentials and is not going to trigger `login` event.

I'm searching the way to clean auth settings so electron asks them again.
atom/browser/api/atom_api_url_request.h
#ifndef ATOM_BROWSER_API_ATOM_API_URL_REQUEST_H_
#define ATOM_BROWSER_API_ATOM_API_URL_REQUEST_H_
#include <array>
#include <string>
#include "atom/browser/api/event_emitter.h"
#include "atom/browser/api/trackable_object.h"
#include "base/memory/weak_ptr.h"
#include "native_mate/dictionary.h"
#include "native_mate/handle.h"
#include "native_mate/wrappable_base.h"
#include "net/base/auth.h"
#include "net/base/io_buffer.h"
#include "net/http/http_response_headers.h"
#include "net/url_request/url_request_context.h"
namespace atom {
class AtomURLRequest;