Port client side code to GDBus

This continues the series of patches for GDBus porting, affecting
all code that accesses remote DBus objects. This includes modemManager,
automount, autorun (for the hotplug sniffer), calendar, network (for
nm-applet only), power, scripting (for perf monitor interface)

https://bugzilla.gnome.org/show_bug.cgi?id=648651

js/ui/autorunManager.js

@@ -1,7 +1,6 @@
 // -*- mode: js; js-indent-level: 4; indent-tabs-mode: nil -*-
 
 const Lang = imports.lang;
-const DBus = imports.dbus;
 const Gio = imports.gi.Gio;
 const St = imports.gi.St;
 
@@ -62,25 +61,19 @@ function startAppForMount(app, mount) {
 
 /******************************************/
 
-const HotplugSnifferIface = {
-    name: 'org.gnome.Shell.HotplugSniffer',
-    methods: [{ name: 'SniffURI',
-                inSignature: 's',
-                outSignature: 'as' }]
-};
+const HotplugSnifferIface = <interface name="org.gnome.Shell.HotplugSniffer">
+<method name="SniffURI">
+    <arg type="s" direction="in" />
+    <arg type="as" direction="out" />
+</method>
+</interface>;
 
-const HotplugSniffer = function() {
-    this._init();
-};
-
-HotplugSniffer.prototype = {
-    _init: function() {
-        DBus.session.proxifyObject(this,
+const HotplugSnifferProxy = Gio.DBusProxy.makeProxyWrapper(HotplugSnifferIface);
+function HotplugSniffer() {
+    return new HotplugSnifferProxy(Gio.DBus.session,
                                    'org.gnome.Shell.HotplugSniffer',
                                    '/org/gnome/Shell/HotplugSniffer');
-    },
-};
-DBus.proxifyPrototype(HotplugSniffer.prototype, HotplugSnifferIface);
+}
 
 function ContentTypeDiscoverer(callback) {
     this._init(callback);
@@ -114,9 +107,8 @@ ContentTypeDiscoverer.prototype = {
             let root = mount.get_root();
 
             let hotplugSniffer = new HotplugSniffer();
-            hotplugSniffer.SniffURIRemote
-                (root.get_uri(), DBus.CALL_FLAG_START,
-                 Lang.bind(this, function(contentTypes) {
+            hotplugSniffer.SniffURIRemote(root.get_uri(),
+                 Lang.bind(this, function([contentTypes]) {
                      this._emitCallback(mount, contentTypes);
                  }));
         }