Fix safari browser to use Future.value

tools/test.dart

Index: tools/test.dart
===================================================================
--- tools/test.dart	(revision 24517)
+++ tools/test.dart	(working copy)
@@ -238,9 +238,9 @@
       var printFailureSummary = progressIndicator != 'buildbot';
       eventListener.add(new TestFailurePrinter(printFailureSummary, formatter));
     }
-    eventListener.add(new ProgressIndicator.fromName(progressIndicator,
-                                                     startTime,
-                                                     formatter));
+    eventListener.add(progressIndicatorFromName(progressIndicator,
+                                                startTime,
+                                                formatter));
     if (printTiming) {
       eventListener.add(new TimingPrinter(startTime));
     }
@@ -302,7 +302,7 @@
           }
         }
       }
-    }, onDone: completer.complete());
+    }, onDone: completer.complete);
   } else {
     completer.complete();
   }