How to inject $rootScope into a service?
<p>how to inject a <code>$rootScope</code> into the factory definition for the following code (so the file can be minified):</p>

<pre><code>(function() {
    var signalRService = function($rootScope) {
       // ... 
    };

    var app = angular.module("App");
    app.factory("signalRService", signalRService);
}());
</code></pre>