* Electron version: 1.6.1
* Operating system: All

### Expected behavior

It should be possible, when using net.request, to set redirection options. The `ClientRequest` constructor options should contain a "redirect" attribute, with possible values "follow", "error" or "manual" (like window.fetch), and defaulting to "follow".

Also, when a redirection did happen, it should be possible to know it did, and at least get the URL to which we were redirect (for example as an attribute of IncomingMessage).

### Actual behavior

It is not possible to stop redirections from happening, or even to know that it happened and get the new URL.

### How to reproduce

Use net.request on any URL that does a redirect.

atom/browser/net/atom_url_request.cc
scoped_refptr<net::URLRequestContextGetter> request_context_getter,
    const std::string& method,
    const std::string& url) {
  DCHECK_CURRENTLY_ON(content::BrowserThread::IO);
  DCHECK(request_context_getter);
  request_context_getter_ = request_context_getter;
  request_context_getter_->AddObserver(this);
  auto context = request_context_getter_->GetURLRequestContext();
  if (!context) {
    
    DoCancelWithError("Cannot start a request after shutdown.", true);
    return;
  }
  DCHECK(context);
  request_ = context->CreateRequest(
      GURL(url), net::RequestPriority::DEFAULT_PRIORITY, this);
  if (!request_) {
    DoCancelWithError("Failed to create a net::URLRequest.", true);
    return;
  }
  request_->set_method(method);
  
  DoSetLoadFlags(net::LOAD_DO_NOT_SEND_COOKIES);
}
void AtomURLRequest::DoTerminate() {