Move cloud_storage to catapult_base.

tools/telemetry/catapult_base/cloud_storage_unittest.py

 # Copyright 2014 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
 
+from catapult_base import cloud_storage
 from telemetry.unittest_util import system_stub
-from telemetry.util import cloud_storage
 
 
 def _FakeFindGsutil():
   return 'fake gsutil path'
 
 def _FakeReadHash(_):
   return 'hashthis!'
 
 def _FakeCalulateHashMatchesRead(_):
   return 'hashthis!'
@@ skipping 136 matching lines @@
     orig_run_command = cloud_storage._RunCommand
     def AssertCorrectRunCommandArgs(args):
       self.assertEqual(expected_args, args)
     cloud_storage._RunCommand = AssertCorrectRunCommandArgs
     expected_args = ['cp', 'gs://bucket1/remote_path1',
                      'gs://bucket2/remote_path2']
     try:
       cloud_storage.Copy('bucket1', 'bucket2', 'remote_path1', 'remote_path2')
     finally:
       cloud_storage._RunCommand = orig_run_command