Replace custom blob gRPC API with ByteStream

client/third_party/google/auth/compute_engine/__init__.py

Index: client/third_party/google/auth/compute_engine/__init__.py
diff --git a/client/third_party/googleapiclient/__init__.py b/client/third_party/google/auth/compute_engine/__init__.py
similarity index 76%
copy from client/third_party/googleapiclient/__init__.py
copy to client/third_party/google/auth/compute_engine/__init__.py
index ceeae8d19d45eb117305a399e144749649fdb216..3794be2f7d1ff33604bfae204edf00f517a289b9 100644
--- a/client/third_party/googleapiclient/__init__.py
+++ b/client/third_party/google/auth/compute_engine/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2014 Google Inc. All Rights Reserved.
+# Copyright 2016 Google Inc.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -12,4 +12,11 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-__version__ = "1.4.2"
+"""Google Compute Engine authentication."""
+
+from google.auth.compute_engine.credentials import Credentials
+
+
+__all__ = [
+    'Credentials'
+]