Add type definition for autoUpdater.quitAndInstall() to github-electron

github-electron/github-electron-main-tests.ts

@@ -227,6 +227,10 @@ app.commandLine.appendSwitch('vmodule', 'console=0');
 
 autoUpdater.setFeedURL('http://mycompany.com/myapp/latest?version=' + app.getVersion());
 
+autoUpdater.checkForUpdates();
+
+autoUpdater.quitAndInstall();
+
 // browser-window
 // https://github.com/atom/electron/blob/master/docs/api/browser-window.md
 

github-electron/github-electron.d.ts

@@ -1186,6 +1186,11 @@ declare module Electron {
 		 * before using this API
 		 */
 		checkForUpdates(): any;
+    /**
+     * Restarts the app and installs the update after it has been downloaded.
+     * It should only be called after update-downloaded has been emitted.
+     */
+    quitAndInstall(): any;
 	}
 
 	module Dialog {