* **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
v8::Locker locker(isolate());
  v8::HandleScope handle_scope(isolate());
  devtools_web_contents_.Reset();
  Emit("devtools-closed");
}
void WebContents::ShowAutofillPopup(content::RenderFrameHost* frame_host,
                                    const gfx::RectF& bounds,
                                    const std::vector<base::string16>& values,
                                    const std::vector<base::string16>& labels) {
  bool offscreen = IsOffScreen() || (embedder_ && embedder_->IsOffScreen());
  gfx::RectF popup_bounds(bounds);
  content::RenderFrameHost* embedder_frame_host = nullptr;
  if (embedder_) {
    auto* embedder_view = embedder_->web_contents()->GetMainFrame()->GetView();
    auto* view = web_contents()->GetMainFrame()->GetView();
    auto offset = view->GetViewBounds().origin() -
                  embedder_view->GetViewBounds().origin();
    popup_bounds.Offset(offset.x(), offset.y());
    embedder_frame_host = embedder_->web_contents()->GetMainFrame();
  }
  CommonWebContentsDelegate::ShowAutofillPopup(
      frame_host, embedder_frame_host, offscreen, popup_bounds, values, labels);
}
bool WebContents::OnMessageReceived(const IPC::Message& message) {