RecreateSKPs: Fix another .join() issue

tools/skp/webpages_playback.py

 #!/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.
 
 """Archives or replays webpages and creates SKPs in a Google Storage location.
 
 To archive webpages and store SKP files (archives should be rarely updated):
 
 cd skia
@@ skipping 475 matching lines @@
 
   def delete_path(self, path):
     subprocess.check_call(['gsutil', 'rm', '-r', '/'.join((self._url, path))])
 
   def download_file(self, name, local_path):
     subprocess.check_call([
         'gsutil', 'cp', '/'.join((self._url, name)), local_path])
 
   def upload_dir_contents(self, source_dir, dest_dir):
     subprocess.check_call([
-        'gsutil', 'cp', '-r', source_dir, '/'.join(self._url, dest_dir)])
+        'gsutil', 'cp', '-r', source_dir, '/'.join((self._url, dest_dir))])
 
 
 class LocalFileSystemDataStore(DataStore):
   def __init__(self, data_store_location):
     self._base_dir = data_store_location
   def target_name(self):
     return self._base_dir
   def target_type(self):
     return self._base_dir
   def does_storage_object_exist(self, name):
@@ skipping 78 matching lines @@
            '--skia_tools is specified then the debugger is not run.',
       default=False)
   option_parser.add_option(
       '', '--skp_prefix',
       help='Prefix to add to the names of generated SKPs.',
       default=None)
   options, unused_args = option_parser.parse_args()
 
   playback = SkPicturePlayback(options)
   sys.exit(playback.Run())