Improve script display in the observatory.

runtime/bin/vmservice/client/lib/src/app/application.dart

Index: runtime/bin/vmservice/client/lib/src/app/application.dart
diff --git a/runtime/bin/vmservice/client/lib/src/app/application.dart b/runtime/bin/vmservice/client/lib/src/app/application.dart
index 6eae10b67797fa92478c08444a616632100e213b..0bf208767a6b562945856c23aafb2050c0ff40f1 100644
--- a/runtime/bin/vmservice/client/lib/src/app/application.dart
+++ b/runtime/bin/vmservice/client/lib/src/app/application.dart
@@ -117,12 +117,17 @@ class ObservatoryApplication extends Observable {
   }
 
   void _visit(String url, String args) {
-    // TODO(johnmccutchan): Pass [args] to pane.
+    var argsMap;
+    if (args == null) {
+      argsMap = {};
+    } else {
+      argsMap = Uri.splitQueryString(args);
+    }
     for (var i = 0; i < _paneRegistry.length; i++) {
       var pane = _paneRegistry[i];
       if (pane.canVisit(url)) {
         _installPane(pane);
-        pane.visit(url);
+        pane.visit(url, argsMap);
         return;
       }
     }