Bump Grpc from 1.19.0 to 1.21.0 in /GrpcHost

[dependabot-preview]

Bumps Grpc from 1.19.0 to 1.21.0.

Release notes

Sourced from Grpc's releases.

Release v1.21.0

Note: gRPC Python pkgs for this release are not available due to the issue https://github-redirect.dependabot.com/grpc/grpc/pull/19105. We will soon be releasing 1.21.1 patch to address this issue.

This is the 1.21.0 release (gandalf) of gRPC Core.

Please see the notes for the previous releases here: https://github.com/grpc/grpc/releases. Please consult https://grpc.io/ for all information regarding this product.

This release contains refinements, improvements, and bug fixes, with highlights listed below.

Note: gRPC Python packages are now marked as deprecated for Python 2.7. See the previous announcement here. Python 2.7 support will be removed on January 1, 2020.

Core

• Service Config Changes to set channel in transient failure on invalid service config. (#18946)
• Add a backup poller to c-ares resolver to take better advantage of c-ares query timeout/retry logic. (#17688)
• Pass WSA_FLAG_NO_HANDLE_INHERIT flag to the WSASocketA() to avoid handle leaking on the Windows in case of using CreateProcess() on the server. (#18060)
• Add fallback-at-startup into xds. (#18665)
• Retire the GRPC_ARENA_INIT_STRATEGY env variable. (#18797)
• Fix gevent segfault with C-Ares as DNS resolver. (#18547)
• Explicitly call getsockname after accept for unix sockets to get the sun_path. (#18556)
• RBE Windows c-core build. (#18546)
• Loosen the dependency on the googleapis-common-protos-types gem. (#18635)
• pick_first: don't go into TRANSIENT_FAILURE upon empty update when in IDLE. (#18598)
• Add guard to the tv_nsec field of gpr_now return value. (#18601)
• Re-enable ALPN check in gRPC C core SSL stack. (#18563)

C++

• Global config variables migration. (#18931)
• Make cc_grpc_library compatible with native proto_library and cc_proto_library rules. (#18955)
• Add alarm in callback streaming test. (#18858)
• Make C++ Channel Interceptors work for lame channels. (#18630)

C#

• Support slice-by-slice deserialization (allow accessing payload as ReadOnlySequence when on netstandard2.0). (#18865)
• Add VS integration for design time build of C# projects. (#18678)
• Migrate interceptor types for server-side interceptors to Grpc.Core.Api. (#18914)
• Add info about C# nightly nuget feed. (#18876)
• Upload C# nightly nugets to Artifactory dev nuget feed. (#18871)
• Migrate client API types to Grpc.Core.Api. (#18532)
• Make CallCredentials implementation agnostic (prepare for move to Grpc.Core.Api). (#18652)
• Add BindServiceAttribute. (#18484)
• Provide access to verify_peer_callback from C# (take two). (#18591)

Node

... (truncated)

Changelog

Sourced from Grpc's changelog.

v1.19.0 |Feb 12, 2019 |Feb 26, 2019
v1.20.0 |Mar 26, 2019 |Apr 9, 2019
v1.21.0 |May 7, 2019 |May 21, 2019
v1.22.0 |Jun 18, 2019 |Jul 2, 2019
v1.23.0 |Jul 30, 2019 |Aug 13, 2019
v1.24.0 |Sept 10, 2019 |Sept 24, 2019
v1.25.0 |Oct 22, 2019 |Nov 5, 2019
v1.26.0 |Dec 3, 2019 |Dec 17, 2019

Commits

• 7569ba7 Merge pull request #19095 from muxi/v1.21.x
• 5b3e073 Revert "Bump up version to 1.21.1"
• 8ab582e Bump up version to 1.21.1
• 118623d Rename root certificate bundle in gRPC-C++ pod
• afb2242 Merge pull request #19087 from srini100/v1.21.x
• 535d0b1 Regenerate projects
• de94662 version bump to v1.21.0
• 2b06075 Merge pull request #19081 from gnossen/v1.21.x
• 2628983 Actually include README.rst in all packages
• f6601e1 Add python deprecation notices.
• Additional commits viewable in compare view

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[dependabot-preview]

Superseded by #13.