tree ad464e94d01033d9d4fbbded9a944c870bc755cb
parent bc3f2649adee9ace37960370626b0273bfb15e11
author Dmitry Lomov <dslomov@google.com> 1479823491 +0000
committer Dmitry Lomov <dslomov@google.com> 1479824150 +0000

Rollback of commit 7f8e0456efe58711aae98c95c6a9dfb57824b9c2.

*** Reason for rollback ***

Breaks Bazel tests: http://ci.bazel.io/job/bazel-tests/331/#showFailuresLink

*** Original change description ***

Improve reliability/performance of Bazel downloads

1. We now retry on connection failures.
  a. With exponential backoff.
  b. While recovering quickly from ephemeral failures.
  c. While still working if internet or web server is slow.
2. We now request gzip responses from web server.

Fixed #1760
Fixed #1910

RELNOTES: External downloads now retry with exponential backoff and support gzip content-encoding.

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MOS_MIGRATED_REVID=139899835