Move implementation of auto-updater on OS X to another file

atom/browser/api/lib/auto-updater/auto-updater-mac.coffee

@@ -0,0 +1,20 @@
+{EventEmitter} = require 'events'
+{autoUpdater} = process.atomBinding 'auto_updater'
+
+autoUpdater.__proto__ = EventEmitter.prototype
+
+autoUpdater.quitAndInstall = ->
+  # If we don't have any window then quitAndInstall immediately.
+  BrowserWindow = require 'browser-window'
+  windows = BrowserWindow.getAllWindows()
+  if windows.length is 0
+    @_quitAndInstall()
+    return
+
+  # Do the restart after all windows have been closed.
+  app = require 'app'
+  app.removeAllListeners 'window-all-closed'
+  app.once 'window-all-closed', @_quitAndInstall.bind(this)
+  win.close() for win in windows
+
+module.exports = autoUpdater