Make Safari tests more robust.

tools/safari_factory_reset.py

+#!/usr/bin/env python
+# Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
+# for details. All rights reserved. Use of this source code is governed by a
+# BSD-style license that can be found in the LICENSE file.
+
+import os
+import string
+import subprocess
+import sys
+
+import utils
+
+
+def Main():
+  args = sys.argv[1:]
+  tools_dir = os.path.dirname(os.path.realpath(__file__))
+  dart_script_name = os.path.join(
+    tools_dir, 'testing', 'dart', 'reset_safari.dart');
+  command = [utils.CheckedInSdkExecutable(),
+             '--checked', dart_script_name] + args
+  exit_code = subprocess.call(command)
+  utils.DiagnoseExitCode(exit_code, command)
+  return exit_code
+
+
+if __name__ == '__main__':
+  sys.exit(Main())