Converted Android Chromedriver buildbot scripts to recipes.

scripts/slave/recipe_modules/gsutil/example.py

 # Copyright 2013 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.
 
 DEPS = [
   'depot_tools/infra_paths',
   'gsutil',
   'recipe_engine/path',
 ]
 
@@ skipping 40 matching lines @@
 
   private_key_file = 'path/to/key'
   signed_url = api.gsutil.signurl(private_key_file, bucket, cloud_file,
                                   name='signed url')
   api.gsutil.remove_url('gs://%s/%s' % (bucket, new_cloud_file))
 
   api.gsutil.download_with_polling('gs://chromium-recipe-test/foo/bar',
                                    'local/path/for/download',
                                    15,
                                    600)
+  api.gsutil.download_latest_file('gs://chromium-recipe-test/foo',
+                                  'gs://chromium-recipe-test/foo/b',
+                                  'local/path/for/download')
+  api.gsutil.list('gs://chromium-recipe-test/foo')
 
 
 def GenTests(api):
   yield api.test('basic')