Fix the build breakages caused by r19742.

pkg/scheduled_test/lib/src/schedule.dart

Index: pkg/scheduled_test/lib/src/schedule.dart
diff --git a/pkg/scheduled_test/lib/src/schedule.dart b/pkg/scheduled_test/lib/src/schedule.dart
index 270d0261518976053feabaeb06e27cbe0b15a42e..e0ce6fc2cf23684df619d1ed5ece4657d3446dd5 100644
--- a/pkg/scheduled_test/lib/src/schedule.dart
+++ b/pkg/scheduled_test/lib/src/schedule.dart
@@ -95,7 +95,7 @@ class Schedule {
   /// If a task times out and then later completes with an error, that error
   /// cannot be handled. The user will still be notified of it.
   Duration get timeout => _timeout;
-  Duration _timeout = new Duration(seconds: 2);
+  Duration _timeout = new Duration(seconds: 30);
   set timeout(Duration duration) {
     _timeout = duration;
     heartbeat();