moved commonly used private functions to it's own utility file.

chrome/test/functional/test_utils.py

Index: chrome/test/functional/test_utils.py
===================================================================
--- chrome/test/functional/test_utils.py	(revision 0)
+++ chrome/test/functional/test_utils.py	(revision 0)
@@ -0,0 +1,37 @@
+#!/usr/bin/python
+
+# Copyright (c) 2010 The Chromium Authors. 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 unittest
+
+import pyauto_functional  # Must be imported before pyauto
+import pyauto
+
+
+"""Commonly used functions for PyAuto tests."""
+
+def DownloadTestFile(test, file_name):
+  """Download a zip file."""
+  download_dir = os.path.join(os.path.abspath(test.DataDir()), 'downloads')
+  file_path = os.path.join(download_dir, file_name)
+  file_url = test.GetFileURLForPath(file_path)
+  downloaded_pkg = os.path.join(test.GetDownloadDirectory().value(),
+                                  file_name)
+  # Check if zip file already exists. If so then delete it.
+  if os.path.exists(downloaded_pkg):
+    self.RemoveTestFile(test, file_name)
+  test.DownloadAndWaitForStart(file_url)
+  # Wait for the download to finish
+  test.WaitForAllDownloadsToComplete()
+
+def RemoveTestFile(test, file_name):
+  """Delete a file from the downloads directory."""
+  downloaded_pkg = os.path.join(test.GetDownloadDirectory().value(),
+                                file_name)
+  os.remove(downloaded_pkg)
+
+if __name__ == '__main__':
+  Main()