Simplify, properly format source code

modules/RTC/RTCUtils.js

         var audioVideo = streams.audioVideo;
         if (audioVideo) {
             var audioTracks = audioVideo.getAudioTracks();
-            if(audioTracks.length) {
+            if (audioTracks.length) {
                 audioStream = new webkitMediaStream();
                 for (var i = 0; i < audioTracks.length; i++) {
                     audioStream.addTrack(audioTracks[i]);
             }
 
             var videoTracks = audioVideo.getVideoTracks();
-            if(videoTracks.length) {
+            if (videoTracks.length) {
                 videoStream = new webkitMediaStream();
                 for (var j = 0; j < videoTracks.length; j++) {
                     videoStream.addTrack(videoTracks[j]);
             }
         }
 
-        if (streams && streams.desktopStream)
+        // FIXME Checking streams here is unnecessary because there's
+        // streams.audioVideo above.
+        if (streams)
             desktopStream = streams.desktopStream;
 
     }
     else if (RTCBrowserType.isFirefox() || RTCBrowserType.isTemasysPluginUsed()) {   // Firefox and Temasys plugin
-        if (streams && streams.audio)
+        if (streams) {
             audioStream = streams.audio;
-
-        if (streams && streams.video)
             videoStream = streams.video;
-
-        if(streams && streams.desktop)
             desktopStream = streams.desktop;
+        }
     }
 
     if (desktopStream)
                                     new Error("Unable to get the audio and " +
                                         "video tracks."),
                                     options.devices));
-                                    return;
+                                return;
                             }
                             if(hasDesktop) {
                                 screenObtainer.obtainStream(