mmv: Use mediawiki.router instead of underlying oojs-router module

This is in preparation for merging the two modules in core and not
exposing oojs-router directly. mediawiki.router is merely 1 line
of code to hold a singleton, and indeed it appears there is no need
for multiple instances to exist given it communicates exclusively to
and from the 'window' object, which is also a global singleton.

Change-Id: Ice09b523dfbefd67493175554eeb525771e8f29d

extension.json

@@ -96,11 +96,11 @@
 				"mediawiki.Title",
 				"mediawiki.Uri",
 				"mediawiki.jqueryMsg",
+				"mediawiki.router",
 				"mediawiki.storage",
 				"mediawiki.user",
 				"mediawiki.util",
 				"oojs",
-				"oojs-router",
 				"jquery.fullscreen",
 				"jquery.color",
 				"jquery.tipsy",
@@ -332,14 +332,14 @@
 			],
 			"dependencies": [
 				"mediawiki.api",
+				"mediawiki.router",
 				"mediawiki.ui.button",
 				"mediawiki.ui.icon",
 				"mediawiki.Title",
 				"mediawiki.user",
 				"mediawiki.storage",
 				"mmv.head",
-				"oojs",
-				"oojs-router"
+				"oojs"
 			],
 			"messages": [
 				"multimediaviewer-view-expanded",

resources/mmv/mmv.js

@@ -16,8 +16,9 @@
  */
 
 ( function () {
-	var MMVP,
-		comingFromHashChange = false;
+	var router = require( 'mediawiki.router' );
+	var comingFromHashChange = false;
+	var MMVP;
 
 	/**
 	 * Analyses the page, looks for image content and sets up the hooks
@@ -83,7 +84,7 @@
 		/**
 		 * @property {OO.Router} router
 		 */
-		this.router = new OO.Router();
+		this.router = router;
 		this.setupRouter();
 		comingFromHashChange = false;