* **Electron Version** (output of `node_modules/.bin/electron --version`):
  * v4.0.5
* **Operating System** (Platform and Version):
  *  Windows 10 

### Expected Behavior
using  webContents api to print an html file oriention  set to landscape in default printer settings and page size set to A5, 

mainWindow.webContents.print({ silent: true, printBackground: false, deviceName: 'HP LaserJet 1020' })

My issue is : it is not printing as defined in the default printer settings

but it currently printing is deviceName not set

and need to send mainWindow.webContents.print() api to silently and printer name 

### To Reproduce
If you provide a URL, please list the commands required to clone/setup/run your repo e.g.
```sh
$ git clone git@github.com:shabeer-mdy/electron-quick-start.git
$ npm install
$ npm start || electron .
```
and set any printer name to  mainWindow.webContents.print({ silent: true, printBackground: false, deviceName: 'HP LaserJet 1020' })

set any installed printer name 



shell/browser/api/atom_api_web_contents.cc
content::RenderFrameHost* frame,
    const content::BluetoothChooser::EventHandler& event_handler) {
  return std::make_unique<BluetoothChooser>(this, event_handler);
}
content::JavaScriptDialogManager* WebContents::GetJavaScriptDialogManager(
    content::WebContents* source) {
  if (!dialog_manager_)
    dialog_manager_.reset(new AtomJavaScriptDialogManager(this));
  return dialog_manager_.get();
}
void WebContents::OnAudioStateChanged(bool audible) {
  Emit("-audio-state-changed", audible);
}
void WebContents::BeforeUnloadFired(bool proceed,
                                    const base::TimeTicks& proceed_time) {
  
  
}
void WebContents::RenderViewCreated(content::RenderViewHost* render_view_host) {
  auto* const impl = content::RenderWidgetHostImpl::FromID(
      render_view_host->GetProcess()->GetID(),
      render_view_host->GetRoutingID());
  if (impl)
    impl->disable_hidden_ = !background_throttling_;
}
void WebContents::RenderViewHostChanged(content::RenderViewHost* old_host,
                                        content::RenderViewHost* new_host) {
  currently_committed_process_id_ = new_host->GetProcess()->GetID();
}
void WebContents::RenderViewDeleted(content::RenderViewHost* render_view_host) {