clang-format

include/grpc++/channel.h

include/grpc++/impl/codegen/async_unary_call.h

include/grpc++/impl/codegen/core_codegen.h

include/grpc++/server.h

src/compiler/cpp_generator.cc

src/cpp/client/cronet_credentials.cc

src/cpp/client/insecure_credentials.cc

src/cpp/common/secure_auth_context.h

src/cpp/server/insecure_server_credentials.cc

src/cpp/server/secure_server_credentials.h

test/cpp/end2end/async_end2end_test.cc

test/cpp/end2end/client_crash_test_server.cc

test/cpp/end2end/end2end_test.cc

test/cpp/end2end/hybrid_end2end_test.cc

test/cpp/end2end/mock_test.cc

test/cpp/end2end/server_builder_plugin_test.cc

test/cpp/end2end/server_crash_test.cc

test/cpp/end2end/streaming_throughput_test.cc

test/cpp/end2end/test_service_impl.h

test/cpp/end2end/thread_stress_test.cc