Move url_open with dependencies to utils.net module.

tests/isolateserver_archive_test.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.
 
 import binascii
 import random
 import hashlib
 import logging
 import os
 import StringIO
 import sys
 import threading
 import unittest
 import zlib
 
 BASE_PATH = os.path.dirname(os.path.abspath(__file__))
 ROOT_DIR = os.path.dirname(BASE_PATH)
 sys.path.insert(0, ROOT_DIR)
 
 import auto_stub
 import isolateserver_archive
 
 
 class IsolateServerTest(auto_stub.TestCase):
   def setUp(self):
     super(IsolateServerTest, self).setUp()
-    self.mock(isolateserver_archive.run_isolated, 'url_open', self._url_open)
+    self.mock(isolateserver_archive.net, 'url_open', self._url_open)
     self.mock(isolateserver_archive, 'randomness', lambda: 'not_really_random')
     self._lock = threading.Lock()
     self._requests = []
 
   def tearDown(self):
     try:
       self.assertEqual([], self._requests)
     finally:
       super(IsolateServerTest, self).tearDown()
 
@@ skipping 214 matching lines @@
     ]
     result = isolateserver_archive.upload_hash_content_to_blobstore(
         path + 'gen_url?foo#bar', data[:], s, content)
     self.assertEqual('ok42', result)
 
 
 if __name__ == '__main__':
   logging.basicConfig(
       level=(logging.DEBUG if '-v' in sys.argv else logging.ERROR))
   unittest.main()