Revert 164090 - Moved Main class to a new file called run_install_tests.py and modified it by addin…

chrome/test/install_test/sample_updater.py

Index: chrome/test/install_test/sample_updater.py
===================================================================
--- chrome/test/install_test/sample_updater.py	(revision 164108)
+++ chrome/test/install_test/sample_updater.py	(working copy)
@@ -1,3 +1,4 @@
+#!/usr/bin/env python
 # Copyright (c) 2012 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.
@@ -2,4 +3,15 @@
 
-"""Tests that demonstrate use of install test framework."""
+"""Runs sample updater and install tests using one or more Chrome builds.
 
+Test requires two arguments: build url and chrome versions to be used, rest of
+the arguments are optional. Builds must be specified in ascending order, with
+the lower version first and the higher version last, each separated by commas.
+Separate arguments are required for install and update test scenarios. The
+setUp method creates a ChromeDriver instance, which can be used to run tests.
+ChromeDriver is shutdown upon completion of the testcase.
+
+Example:
+    $ python sample_updater.py --url=<URL> --builds=19.0.1069.0,19.0.1070.0
+"""
+
 import os
@@ -9,6 +21,7 @@
 import unittest
 
 from install_test import InstallTest
+from install_test import Main
 
 
 class SampleUpdater(InstallTest):
@@ -36,3 +49,7 @@
     self.Install(self.GetInstallBuild())
     self.StartChrome()
     self._driver.get('http://www.google.org/')
+
+
+if __name__ == '__main__':
+  Main()