Remove unnecessary extern Cs

21 files changed, 4 insertions, 42 deletions

diff --git a/test/cpp/common/auth_property_iterator_test.cc b/test/cpp/common/auth_property_iterator_test.cc
index e25d2a7597..4a097e8739 100644
--- a/test/cpp/common/auth_property_iterator_test.cc
+++ b/test/cpp/common/auth_property_iterator_test.cc
@@ -22,9 +22,7 @@
 #include "src/cpp/common/secure_auth_context.h"
 #include "test/cpp/util/string_ref_helper.h"
 
-extern "C" {
 #include "src/core/lib/security/context/security_context.h"
-}
 
 using ::grpc::testing::ToString;
 
diff --git a/test/cpp/common/channel_arguments_test.cc b/test/cpp/common/channel_arguments_test.cc
index cfe64f11b1..6f27ddd1e0 100644
--- a/test/cpp/common/channel_arguments_test.cc
+++ b/test/cpp/common/channel_arguments_test.cc
@@ -23,10 +23,8 @@
 #include <grpc/support/useful.h>
 #include <gtest/gtest.h>
 
-extern "C" {
 #include "src/core/lib/iomgr/exec_ctx.h"
 #include "src/core/lib/iomgr/socket_mutator.h"
-}
 
 namespace grpc {
 namespace testing {
diff --git a/test/cpp/common/secure_auth_context_test.cc b/test/cpp/common/secure_auth_context_test.cc
index 91c7a3b5df..0cc32c1853 100644
--- a/test/cpp/common/secure_auth_context_test.cc
+++ b/test/cpp/common/secure_auth_context_test.cc
@@ -22,9 +22,7 @@
 #include <gtest/gtest.h>
 #include "test/cpp/util/string_ref_helper.h"
 
-extern "C" {
 #include "src/core/lib/security/context/security_context.h"
-}
 
 using grpc::testing::ToString;
 
diff --git a/test/cpp/end2end/client_lb_end2end_test.cc b/test/cpp/end2end/client_lb_end2end_test.cc
index c236f76e89..83bbe45523 100644
--- a/test/cpp/end2end/client_lb_end2end_test.cc
+++ b/test/cpp/end2end/client_lb_end2end_test.cc
@@ -33,10 +33,8 @@
 #include <grpc/support/thd.h>
 #include <grpc/support/time.h>
 
-extern "C" {
 #include "src/core/ext/filters/client_channel/resolver/fake/fake_resolver.h"
 #include "src/core/ext/filters/client_channel/subchannel_index.h"
-}
 
 #include "src/proto/grpc/testing/echo.grpc.pb.h"
 #include "test/core/util/port.h"
diff --git a/test/cpp/end2end/grpclb_end2end_test.cc b/test/cpp/end2end/grpclb_end2end_test.cc
index c370302c49..fd84f1e8b3 100644
--- a/test/cpp/end2end/grpclb_end2end_test.cc
+++ b/test/cpp/end2end/grpclb_end2end_test.cc
@@ -33,10 +33,8 @@
 #include <grpc/support/thd.h>
 #include <grpc/support/time.h>
 
-extern "C" {
 #include "src/core/ext/filters/client_channel/resolver/fake/fake_resolver.h"
 #include "src/core/lib/iomgr/sockaddr.h"
-}
 
 #include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
diff --git a/test/cpp/grpclb/grpclb_test.cc b/test/cpp/grpclb/grpclb_test.cc
index e740ea513a..0fadc256ec 100644
--- a/test/cpp/grpclb/grpclb_test.cc
+++ b/test/cpp/grpclb/grpclb_test.cc
@@ -35,7 +35,7 @@
 #include <grpc/support/time.h>
 
 #include <grpc++/impl/codegen/config.h>
-extern "C" {
+
 #include "src/core/ext/filters/client_channel/client_channel.h"
 #include "src/core/ext/filters/client_channel/resolver/fake/fake_resolver.h"
 #include "src/core/lib/channel/channel_args.h"
@@ -49,7 +49,6 @@ extern "C" {
 #include "test/core/end2end/cq_verifier.h"
 #include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
-}
 
 #include "src/proto/grpc/lb/v1/load_balancer.pb.h"
 
diff --git a/test/cpp/interop/interop_test.cc b/test/cpp/interop/interop_test.cc
index c18fe1ec1f..1bf0d8d10f 100644
--- a/test/cpp/interop/interop_test.cc
+++ b/test/cpp/interop/interop_test.cc
@@ -37,10 +37,8 @@
 #include "test/core/util/port.h"
 #include "test/cpp/util/test_config.h"
 
-extern "C" {
 #include "src/core/lib/iomgr/socket_utils_posix.h"
 #include "src/core/lib/support/string.h"
-}
 
 DEFINE_string(extra_server_flags, "", "Extra flags to pass to server.");
 
diff --git a/test/cpp/microbenchmarks/bm_arena.cc b/test/cpp/microbenchmarks/bm_arena.cc
index 165b74670d..5b7c611919 100644
--- a/test/cpp/microbenchmarks/bm_arena.cc
+++ b/test/cpp/microbenchmarks/bm_arena.cc
@@ -18,9 +18,7 @@
 
 /* Benchmark arenas */
 
-extern "C" {
 #include "src/core/lib/support/arena.h"
-}
 #include "test/cpp/microbenchmarks/helpers.h"
 #include "third_party/benchmark/include/benchmark/benchmark.h"
 
diff --git a/test/cpp/microbenchmarks/bm_call_create.cc b/test/cpp/microbenchmarks/bm_call_create.cc
index cf9a42e8c6..a53565bb09 100644
--- a/test/cpp/microbenchmarks/bm_call_create.cc
+++ b/test/cpp/microbenchmarks/bm_call_create.cc
@@ -29,7 +29,6 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/string_util.h>
 
-extern "C" {
 #include "src/core/ext/filters/client_channel/client_channel.h"
 #include "src/core/ext/filters/deadline/deadline_filter.h"
 #include "src/core/ext/filters/http/client/http_client_filter.h"
@@ -43,7 +42,6 @@ extern "C" {
 #include "src/core/lib/profiling/timers.h"
 #include "src/core/lib/surface/channel.h"
 #include "src/core/lib/transport/transport_impl.h"
-}
 
 #include "src/cpp/client/create_channel_internal.h"
 #include "src/proto/grpc/testing/echo.grpc.pb.h"
diff --git a/test/cpp/microbenchmarks/bm_chttp2_hpack.cc b/test/cpp/microbenchmarks/bm_chttp2_hpack.cc
index bc2157b9f1..930081341b 100644
--- a/test/cpp/microbenchmarks/bm_chttp2_hpack.cc
+++ b/test/cpp/microbenchmarks/bm_chttp2_hpack.cc
@@ -22,14 +22,14 @@
 #include <grpc/support/log.h>
 #include <string.h>
 #include <sstream>
-extern "C" {
+
 #include "src/core/ext/transport/chttp2/transport/hpack_encoder.h"
 #include "src/core/ext/transport/chttp2/transport/hpack_parser.h"
 #include "src/core/lib/slice/slice_internal.h"
 #include "src/core/lib/slice/slice_string_helpers.h"
 #include "src/core/lib/transport/static_metadata.h"
 #include "src/core/lib/transport/timeout_encoding.h"
-}
+
 #include "test/cpp/microbenchmarks/helpers.h"
 #include "third_party/benchmark/include/benchmark/benchmark.h"
 
diff --git a/test/cpp/microbenchmarks/bm_closure.cc b/test/cpp/microbenchmarks/bm_closure.cc
index 41649b8a73..3b9e261a22 100644
--- a/test/cpp/microbenchmarks/bm_closure.cc
+++ b/test/cpp/microbenchmarks/bm_closure.cc
@@ -22,12 +22,10 @@
 #include <grpc/grpc.h>
 #include <sstream>
 
-extern "C" {
 #include "src/core/lib/iomgr/closure.h"
 #include "src/core/lib/iomgr/combiner.h"
 #include "src/core/lib/iomgr/exec_ctx.h"
 #include "src/core/lib/support/spinlock.h"
-}
 
 #include "test/cpp/microbenchmarks/helpers.h"
 
diff --git a/test/cpp/microbenchmarks/bm_cq.cc b/test/cpp/microbenchmarks/bm_cq.cc
index a0c0414f2f..68252d8bc3 100644
--- a/test/cpp/microbenchmarks/bm_cq.cc
+++ b/test/cpp/microbenchmarks/bm_cq.cc
@@ -26,9 +26,7 @@
 #include <grpc/support/log.h>
 #include "test/cpp/microbenchmarks/helpers.h"
 
-extern "C" {
 #include "src/core/lib/surface/completion_queue.h"
-}
 
 namespace grpc {
 namespace testing {
diff --git a/test/cpp/microbenchmarks/bm_cq_multiple_threads.cc b/test/cpp/microbenchmarks/bm_cq_multiple_threads.cc
index 57a69acf01..8d4349a297 100644
--- a/test/cpp/microbenchmarks/bm_cq_multiple_threads.cc
+++ b/test/cpp/microbenchmarks/bm_cq_multiple_threads.cc
@@ -25,11 +25,9 @@
 #include <grpc/support/log.h>
 #include "test/cpp/microbenchmarks/helpers.h"
 
-extern "C" {
 #include "src/core/lib/iomgr/ev_posix.h"
 #include "src/core/lib/iomgr/port.h"
 #include "src/core/lib/surface/completion_queue.h"
-}
 
 struct grpc_pollset {
   gpr_mu mu;
diff --git a/test/cpp/microbenchmarks/bm_error.cc b/test/cpp/microbenchmarks/bm_error.cc
index 56b80dfcf6..aa7822653f 100644
--- a/test/cpp/microbenchmarks/bm_error.cc
+++ b/test/cpp/microbenchmarks/bm_error.cc
@@ -21,10 +21,8 @@
 #include <benchmark/benchmark.h>
 #include <memory>
 
-extern "C" {
 #include "src/core/lib/iomgr/error.h"
 #include "src/core/lib/transport/error_utils.h"
-}
 
 #include "test/cpp/microbenchmarks/helpers.h"
 
diff --git a/test/cpp/microbenchmarks/bm_metadata.cc b/test/cpp/microbenchmarks/bm_metadata.cc
index 360bbabe13..1ed05f7466 100644
--- a/test/cpp/microbenchmarks/bm_metadata.cc
+++ b/test/cpp/microbenchmarks/bm_metadata.cc
@@ -21,10 +21,8 @@
 #include <benchmark/benchmark.h>
 #include <grpc/grpc.h>
 
-extern "C" {
 #include "src/core/lib/transport/metadata.h"
 #include "src/core/lib/transport/static_metadata.h"
-}
 
 #include "test/cpp/microbenchmarks/helpers.h"
 
diff --git a/test/cpp/microbenchmarks/bm_pollset.cc b/test/cpp/microbenchmarks/bm_pollset.cc
index eab1e89480..92d76f307e 100644
--- a/test/cpp/microbenchmarks/bm_pollset.cc
+++ b/test/cpp/microbenchmarks/bm_pollset.cc
@@ -23,12 +23,10 @@
 #include <grpc/support/log.h>
 #include <grpc/support/useful.h>
 
-extern "C" {
 #include "src/core/lib/iomgr/ev_posix.h"
 #include "src/core/lib/iomgr/pollset.h"
 #include "src/core/lib/iomgr/port.h"
 #include "src/core/lib/iomgr/wakeup_fd_posix.h"
-}
 
 #include "test/cpp/microbenchmarks/helpers.h"
 #include "third_party/benchmark/include/benchmark/benchmark.h"
diff --git a/test/cpp/microbenchmarks/fullstack_fixtures.h b/test/cpp/microbenchmarks/fullstack_fixtures.h
index a7f8504505..ba0935719c 100644
--- a/test/cpp/microbenchmarks/fullstack_fixtures.h
+++ b/test/cpp/microbenchmarks/fullstack_fixtures.h
@@ -27,7 +27,6 @@
 #include <grpc++/server_builder.h>
 #include <grpc/support/log.h>
 
-extern "C" {
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/iomgr/endpoint.h"
@@ -39,7 +38,6 @@ extern "C" {
 #include "src/core/lib/surface/server.h"
 #include "test/core/util/passthru_endpoint.h"
 #include "test/core/util/port.h"
-}
 
 #include "src/cpp/client/create_channel_internal.h"
 #include "test/cpp/microbenchmarks/helpers.h"
diff --git a/test/cpp/microbenchmarks/helpers.h b/test/cpp/microbenchmarks/helpers.h
index b6cea7c317..07be589df6 100644
--- a/test/cpp/microbenchmarks/helpers.h
+++ b/test/cpp/microbenchmarks/helpers.h
@@ -22,11 +22,9 @@
 #include <sstream>
 #include <vector>
 
-extern "C" {
 #include <grpc/support/port_platform.h>
 #include "src/core/lib/debug/stats.h"
 #include "test/core/util/memory_counters.h"
-}
 
 #include <benchmark/benchmark.h>
 #include <grpc++/impl/grpc_library.h>
diff --git a/test/cpp/naming/resolver_component_test.cc b/test/cpp/naming/resolver_component_test.cc
index 7d0371bea4..a0ac4c501a 100644
--- a/test/cpp/naming/resolver_component_test.cc
+++ b/test/cpp/naming/resolver_component_test.cc
@@ -32,7 +32,6 @@
 #include "test/cpp/util/subprocess.h"
 #include "test/cpp/util/test_config.h"
 
-extern "C" {
 #include "src/core/ext/filters/client_channel/client_channel.h"
 #include "src/core/ext/filters/client_channel/resolver.h"
 #include "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h"
@@ -47,7 +46,6 @@ extern "C" {
 #include "src/core/lib/support/string.h"
 #include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
-}
 
 using std::vector;
 using grpc::SubProcess;
diff --git a/test/cpp/naming/resolver_component_tests_runner_invoker.cc b/test/cpp/naming/resolver_component_tests_runner_invoker.cc
index b14391284d..96f2e5abb5 100644
--- a/test/cpp/naming/resolver_component_tests_runner_invoker.cc
+++ b/test/cpp/naming/resolver_component_tests_runner_invoker.cc
@@ -32,10 +32,8 @@
 #include "test/cpp/util/subprocess.h"
 #include "test/cpp/util/test_config.h"
 
-extern "C" {
 #include "src/core/lib/support/env.h"
 #include "test/core/util/port.h"
-}
 
 DEFINE_bool(
     running_under_bazel, false,
diff --git a/test/cpp/performance/writes_per_rpc_test.cc b/test/cpp/performance/writes_per_rpc_test.cc
index f4f794cb88..6c23245021 100644
--- a/test/cpp/performance/writes_per_rpc_test.cc
+++ b/test/cpp/performance/writes_per_rpc_test.cc
@@ -26,7 +26,6 @@
 #include <grpc/support/log.h>
 #include <gtest/gtest.h>
 
-extern "C" {
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/iomgr/endpoint.h"
@@ -38,7 +37,7 @@ extern "C" {
 #include "src/core/lib/surface/server.h"
 #include "test/core/util/passthru_endpoint.h"
 #include "test/core/util/port.h"
-}
+
 #include "src/cpp/client/create_channel_internal.h"
 #include "src/proto/grpc/testing/echo.grpc.pb.h"
 #include "test/core/util/test_config.h"