Added gsutil to depot tools

third_party/gsutil/README.chromium

Index: third_party/gsutil/README.chromium
diff --git a/third_party/gsutil/README.chromium b/third_party/gsutil/README.chromium
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index 0000000000000000000000000000000000000000..40293fdfb5c21ca1fe585d3cfa281539c5d0c961
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+Name: gsutil
+URL: https://github.com/GoogleCloudPlatform/gsutil
+Version: 3.25
+License: Apache 2.0
+
+Description:
+Set of tools to allow querying, uploading, and downloading objects from
+Google Storage.
+
+Modifications:
+* Removed gsutil/gslib/commands/test.py
+* Removed gsutil/boto/docs/
+* Removed gsutil/boto/tests/
+* Removed gsutil/pkg_gen.sh
+* Removed gsutil/gslib/tests/
+* Removed gsutil/boto/boto/setup.py
+* Removed gsutil/boto/boto/pylintrc
+* Removed gsutil/boto/boto/ec2
+* Removed gsutil/boto/boto/beanstalk
+* Removed gsutil/boto/boto/cloudsearch
+* Removed gsutil/boto/boto/dynamodb
+* Removed gsutil/boto/boto/swf
+* Removed gsutil/boto/boto/rds
+* Removed gsutil/boto/boto/sdb
+* Removed gsutil/boto/boto/vpc
+* Removed gsutil/boto/boto/route53
+* Removed gsutil/boto/boto/iam
+* Removed gsutil/boto/boto/sns
+* Removed gsutil/boto/boto/cloudformations
+* Removed gsutil/boto/boto/elasticache
+* Removed gsutil/boto/boto/elastictranscoder
+* Removed gsutil/boto/boto/mturk
+* Removed gsutil/boto/boto/cloudfront
+* Removed gsutil/boto/boto/sqs
+* Removed gsutil/boto/boto/mws
+* Removed gsutil/boto/boto/emr
+* Removed gsutil/boto/boto/pyami/installers
+* Moved gsutil/third_party into our own third_party directory
+* Append sys.path in gsutil/gsutil to find the moved third_party modules
+* Updated checksum ce71ac982f1148315e7fa65cff2f83e8 -> b84313fa6623cf65ba02664128e5d59f
+
+Full license is in the COPYING file.