Update checked in version of gsutil to version 4.6

gslib/no_op_credentials.py

+# -*- coding: utf-8 -*-
+# Copyright 2014 Google Inc. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+"""No-op implementation of credentials for JSON HTTP requests."""
+
+from __future__ import absolute_import
+
+
+class NoOpCredentials(object):
+
+  def __init__(self):
+    pass
+
+  def authorize(self, http_obj):  # pylint: disable=invalid-name
+    return http_obj
+
+  def set_store(self, store):  # pylint: disable=invalid-name
+    pass
+