Add gsutil 4.13 to telemetry/third_party

tools/telemetry/third_party/gsutil/gslib/devshell_auth_plugin.py

Index: tools/telemetry/third_party/gsutil/gslib/devshell_auth_plugin.py
diff --git a/tools/telemetry/third_party/gsutil/gslib/devshell_auth_plugin.py b/tools/telemetry/third_party/gsutil/gslib/devshell_auth_plugin.py
new file mode 100644
index 0000000000000000000000000000000000000000..540b037ec672a7ced61b45d5aad1273229e4c6ee
--- /dev/null
+++ b/tools/telemetry/third_party/gsutil/gslib/devshell_auth_plugin.py
@@ -0,0 +1,40 @@
+# -*- coding: utf-8 -*-
+# Copyright 2015 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.
+"""Developer Shell auth bridge.
+
+This enables Boto API auth in Developer Shell environment.
+"""
+
+from __future__ import absolute_import
+
+import oauth2client.devshell as devshell
+from boto.auth_handler import AuthHandler
+from boto.auth_handler import NotReadyToAuthenticate
+
+
+class DevshellAuth(AuthHandler):
+  """Developer Shell authorization plugin class."""
+
+  capability = ['s3']
+
+  def __init__(self, path, config, provider):
+    try:
+      self.creds = devshell.DevshellCredentials()
+    except:
+      raise NotReadyToAuthenticate()
+
+  def add_auth(self, http_request):
+    http_request.headers['Authorization'] = 'Bearer %s' % self.creds.access_token
+