* **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
#include "shell/browser/browser.h"
#include "shell/browser/child_web_contents_tracker.h"
#include "shell/browser/lib/bluetooth_chooser.h"
#include "shell/browser/native_window.h"
#include "shell/browser/net/atom_network_delegate.h"
#include "shell/browser/session_preferences.h"
#include "shell/browser/ui/drag_util.h"
#include "shell/browser/ui/inspectable_web_contents.h"
#include "shell/browser/ui/inspectable_web_contents_view.h"
#include "shell/browser/web_contents_permission_helper.h"
#include "shell/browser/web_contents_preferences.h"
#include "shell/browser/web_contents_zoom_controller.h"
#include "shell/browser/web_view_guest_delegate.h"
#include "shell/common/api/atom_api_native_image.h"
#include "shell/common/api/event_emitter_caller.h"
#include "shell/common/color_util.h"
#include "shell/common/mouse_util.h"
#include "shell/common/native_mate_converters/blink_converter.h"
#include "shell/common/native_mate_converters/content_converter.h"
#include "shell/common/native_mate_converters/file_path_converter.h"
#include "shell/common/native_mate_converters/gfx_converter.h"
#include "shell/common/native_mate_converters/gurl_converter.h"
#include "shell/common/native_mate_converters/image_converter.h"
#include "shell/common/native_mate_converters/map_converter.h"
#include "shell/common/native_mate_converters/net_converter.h"
#include "shell/common/native_mate_converters/network_converter.h"
#include "shell/common/native_mate_converters/once_callback.h"
#include "shell/common/native_mate_converters/string16_converter.h"
#include "shell/common/native_mate_converters/value_converter.h"
#include "shell/common/node_includes.h"