Bump wait time for watcher test.

This is to see if it makes the test less flaky on the bots,
in particular the ARM ones.

BUG=https://code.google.com/p/dart/issues/detail?id=13705
R=nweiz@google.com

Review URL: https://codereview.chromium.org//26398002

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart/pkg/watcher@28341 260f80e4-7a28-3924-810f-c04153c831b5

pkgs/watcher/test/no_subscription_test.dart

diff --git a/pkgs/watcher/test/no_subscription_test.dart b/pkgs/watcher/test/no_subscription_test.dart
index d0a396a..2e7b6d3 100644
--- a/pkgs/watcher/test/no_subscription_test.dart
+++ b/pkgs/watcher/test/no_subscription_test.dart
@@ -57,7 +57,10 @@
     // its pause between polling loops. That means the second scan to skip
     // what changed while we were unsubscribed won't happen until after that
     // delay is done. Wait long enough for that to happen.
-    schedule(() => new Future.delayed(watcher.pollingDelay * 2));
+    //
+    // We're doing * 4 here because that seems to give the slower bots enough
+    // time for this to complete.
+    schedule(() => new Future.delayed(watcher.pollingDelay * 4));
 
     // And add a third file.
     writeFile("added.txt");