Merge remote-tracking branch 'upstream/master' into handshaker_early_exit

.gitmodules

Makefile

build.yaml

src/benchmark/gen_build_yaml.py

src/core/ext/transport/chttp2/transport/chttp2_transport.c

src/core/ext/transport/chttp2/transport/internal.h

src/core/ext/transport/chttp2/transport/stream_lists.c

src/core/ext/transport/cronet/transport/cronet_transport.c

src/core/lib/iomgr/tcp_posix.c

src/core/lib/surface/completion_queue.c

src/node/performance/worker_service_impl.js

...e-c/tests/CoreCronetEnd2EndTests/CoreCronetEnd2EndTests.m

src/objective-c/tests/GRPCClientTests.m

src/objective-c/tests/InteropTests.m

test/cpp/microbenchmarks/bm_fullstack.cc

test/cpp/microbenchmarks/noop-benchmark.cc

test/cpp/qps/driver.cc

third_party/benchmark

third_party/google_benchmark

tools/buildgen/generate_build_additions.sh