diff --git a/.clang_complete b/.clang_complete
new file mode 100644
index 0000000..79d0946
--- /dev/null
+++ b/.clang_complete
@@ -0,0 +1,8 @@
+-Ithird_party/googletest/include
+-Ithird_party/googletest
+-Iinclude
+-Igens
+-I.
+-Ithird_party/boringssl/include
+-Ithird_party/zlib
+-Ithird_party/protobuf/src
diff --git a/.gitmodules b/.gitmodules
index c37d0ab..c85a539 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -13,7 +13,7 @@
 	url = https://github.com/google/googletest.git
 [submodule "third_party/boringssl"]
 	path = third_party/boringssl
-	url = https://boringssl.googlesource.com/boringssl
+	url = https://github.com/google/boringssl.git
 [submodule "third_party/nanopb"]
 	path = third_party/nanopb
 	url = https://github.com/nanopb/nanopb.git
diff --git a/BUILD b/BUILD
index c92a69b..04afa61 100644
--- a/BUILD
+++ b/BUILD
@@ -44,62 +44,62 @@
 cc_library(
   name = "gpr",
   srcs = [
-    "src/core/profiling/timers.h",
-    "src/core/support/backoff.h",
-    "src/core/support/block_annotate.h",
-    "src/core/support/env.h",
-    "src/core/support/load_file.h",
-    "src/core/support/murmur_hash.h",
-    "src/core/support/stack_lockfree.h",
-    "src/core/support/string.h",
-    "src/core/support/string_win32.h",
-    "src/core/support/thd_internal.h",
-    "src/core/support/time_precise.h",
-    "src/core/support/tmpfile.h",
-    "src/core/profiling/basic_timers.c",
-    "src/core/profiling/stap_timers.c",
-    "src/core/support/alloc.c",
-    "src/core/support/avl.c",
-    "src/core/support/backoff.c",
-    "src/core/support/cmdline.c",
-    "src/core/support/cpu_iphone.c",
-    "src/core/support/cpu_linux.c",
-    "src/core/support/cpu_posix.c",
-    "src/core/support/cpu_windows.c",
-    "src/core/support/env_linux.c",
-    "src/core/support/env_posix.c",
-    "src/core/support/env_win32.c",
-    "src/core/support/histogram.c",
-    "src/core/support/host_port.c",
-    "src/core/support/load_file.c",
-    "src/core/support/log.c",
-    "src/core/support/log_android.c",
-    "src/core/support/log_linux.c",
-    "src/core/support/log_posix.c",
-    "src/core/support/log_win32.c",
-    "src/core/support/murmur_hash.c",
-    "src/core/support/slice.c",
-    "src/core/support/slice_buffer.c",
-    "src/core/support/stack_lockfree.c",
-    "src/core/support/string.c",
-    "src/core/support/string_posix.c",
-    "src/core/support/string_win32.c",
-    "src/core/support/subprocess_posix.c",
-    "src/core/support/subprocess_windows.c",
-    "src/core/support/sync.c",
-    "src/core/support/sync_posix.c",
-    "src/core/support/sync_win32.c",
-    "src/core/support/thd.c",
-    "src/core/support/thd_posix.c",
-    "src/core/support/thd_win32.c",
-    "src/core/support/time.c",
-    "src/core/support/time_posix.c",
-    "src/core/support/time_precise.c",
-    "src/core/support/time_win32.c",
-    "src/core/support/tls_pthread.c",
-    "src/core/support/tmpfile_posix.c",
-    "src/core/support/tmpfile_win32.c",
-    "src/core/support/wrap_memcpy.c",
+    "src/core/lib/profiling/timers.h",
+    "src/core/lib/support/backoff.h",
+    "src/core/lib/support/block_annotate.h",
+    "src/core/lib/support/env.h",
+    "src/core/lib/support/load_file.h",
+    "src/core/lib/support/murmur_hash.h",
+    "src/core/lib/support/stack_lockfree.h",
+    "src/core/lib/support/string.h",
+    "src/core/lib/support/string_win32.h",
+    "src/core/lib/support/thd_internal.h",
+    "src/core/lib/support/time_precise.h",
+    "src/core/lib/support/tmpfile.h",
+    "src/core/lib/profiling/basic_timers.c",
+    "src/core/lib/profiling/stap_timers.c",
+    "src/core/lib/support/alloc.c",
+    "src/core/lib/support/avl.c",
+    "src/core/lib/support/backoff.c",
+    "src/core/lib/support/cmdline.c",
+    "src/core/lib/support/cpu_iphone.c",
+    "src/core/lib/support/cpu_linux.c",
+    "src/core/lib/support/cpu_posix.c",
+    "src/core/lib/support/cpu_windows.c",
+    "src/core/lib/support/env_linux.c",
+    "src/core/lib/support/env_posix.c",
+    "src/core/lib/support/env_win32.c",
+    "src/core/lib/support/histogram.c",
+    "src/core/lib/support/host_port.c",
+    "src/core/lib/support/load_file.c",
+    "src/core/lib/support/log.c",
+    "src/core/lib/support/log_android.c",
+    "src/core/lib/support/log_linux.c",
+    "src/core/lib/support/log_posix.c",
+    "src/core/lib/support/log_win32.c",
+    "src/core/lib/support/murmur_hash.c",
+    "src/core/lib/support/slice.c",
+    "src/core/lib/support/slice_buffer.c",
+    "src/core/lib/support/stack_lockfree.c",
+    "src/core/lib/support/string.c",
+    "src/core/lib/support/string_posix.c",
+    "src/core/lib/support/string_win32.c",
+    "src/core/lib/support/subprocess_posix.c",
+    "src/core/lib/support/subprocess_windows.c",
+    "src/core/lib/support/sync.c",
+    "src/core/lib/support/sync_posix.c",
+    "src/core/lib/support/sync_win32.c",
+    "src/core/lib/support/thd.c",
+    "src/core/lib/support/thd_posix.c",
+    "src/core/lib/support/thd_win32.c",
+    "src/core/lib/support/time.c",
+    "src/core/lib/support/time_posix.c",
+    "src/core/lib/support/time_precise.c",
+    "src/core/lib/support/time_win32.c",
+    "src/core/lib/support/tls_pthread.c",
+    "src/core/lib/support/tmpfile_posix.c",
+    "src/core/lib/support/tmpfile_win32.c",
+    "src/core/lib/support/wrap_memcpy.c",
   ],
   hdrs = [
     "include/grpc/support/alloc.h",
@@ -157,303 +157,306 @@
 cc_library(
   name = "grpc",
   srcs = [
-    "src/core/census/grpc_filter.h",
-    "src/core/census/grpc_plugin.h",
-    "src/core/channel/channel_args.h",
-    "src/core/channel/channel_stack.h",
-    "src/core/channel/channel_stack_builder.h",
-    "src/core/channel/client_channel.h",
-    "src/core/channel/client_uchannel.h",
-    "src/core/channel/compress_filter.h",
-    "src/core/channel/connected_channel.h",
-    "src/core/channel/context.h",
-    "src/core/channel/http_client_filter.h",
-    "src/core/channel/http_server_filter.h",
-    "src/core/channel/subchannel_call_holder.h",
-    "src/core/client_config/client_config.h",
-    "src/core/client_config/connector.h",
-    "src/core/client_config/initial_connect_string.h",
-    "src/core/client_config/lb_policies/load_balancer_api.h",
-    "src/core/client_config/lb_policies/pick_first.h",
-    "src/core/client_config/lb_policies/round_robin.h",
-    "src/core/client_config/lb_policy.h",
-    "src/core/client_config/lb_policy_factory.h",
-    "src/core/client_config/lb_policy_registry.h",
-    "src/core/client_config/resolver.h",
-    "src/core/client_config/resolver_factory.h",
-    "src/core/client_config/resolver_registry.h",
-    "src/core/client_config/resolvers/dns_resolver.h",
-    "src/core/client_config/resolvers/sockaddr_resolver.h",
-    "src/core/client_config/subchannel.h",
-    "src/core/client_config/subchannel_factory.h",
-    "src/core/client_config/subchannel_index.h",
-    "src/core/client_config/uri_parser.h",
-    "src/core/compression/algorithm_metadata.h",
-    "src/core/compression/message_compress.h",
-    "src/core/debug/trace.h",
-    "src/core/httpcli/format_request.h",
-    "src/core/httpcli/httpcli.h",
-    "src/core/httpcli/parser.h",
-    "src/core/iomgr/closure.h",
-    "src/core/iomgr/endpoint.h",
-    "src/core/iomgr/endpoint_pair.h",
-    "src/core/iomgr/ev_poll_and_epoll_posix.h",
-    "src/core/iomgr/ev_posix.h",
-    "src/core/iomgr/exec_ctx.h",
-    "src/core/iomgr/executor.h",
-    "src/core/iomgr/iocp_windows.h",
-    "src/core/iomgr/iomgr.h",
-    "src/core/iomgr/iomgr_internal.h",
-    "src/core/iomgr/iomgr_posix.h",
-    "src/core/iomgr/pollset.h",
-    "src/core/iomgr/pollset_set.h",
-    "src/core/iomgr/pollset_set_windows.h",
-    "src/core/iomgr/pollset_windows.h",
-    "src/core/iomgr/resolve_address.h",
-    "src/core/iomgr/sockaddr.h",
-    "src/core/iomgr/sockaddr_posix.h",
-    "src/core/iomgr/sockaddr_utils.h",
-    "src/core/iomgr/sockaddr_win32.h",
-    "src/core/iomgr/socket_utils_posix.h",
-    "src/core/iomgr/socket_windows.h",
-    "src/core/iomgr/tcp_client.h",
-    "src/core/iomgr/tcp_posix.h",
-    "src/core/iomgr/tcp_server.h",
-    "src/core/iomgr/tcp_windows.h",
-    "src/core/iomgr/time_averaged_stats.h",
-    "src/core/iomgr/timer.h",
-    "src/core/iomgr/timer_heap.h",
-    "src/core/iomgr/udp_server.h",
-    "src/core/iomgr/wakeup_fd_pipe.h",
-    "src/core/iomgr/wakeup_fd_posix.h",
-    "src/core/iomgr/workqueue.h",
-    "src/core/iomgr/workqueue_posix.h",
-    "src/core/iomgr/workqueue_windows.h",
-    "src/core/json/json.h",
-    "src/core/json/json_common.h",
-    "src/core/json/json_reader.h",
-    "src/core/json/json_writer.h",
-    "src/core/proto/grpc/lb/v0/load_balancer.pb.h",
-    "src/core/statistics/census_interface.h",
-    "src/core/statistics/census_rpc_stats.h",
-    "src/core/surface/api_trace.h",
-    "src/core/surface/call.h",
-    "src/core/surface/call_test_only.h",
-    "src/core/surface/channel.h",
-    "src/core/surface/channel_init.h",
-    "src/core/surface/channel_stack_type.h",
-    "src/core/surface/completion_queue.h",
-    "src/core/surface/event_string.h",
-    "src/core/surface/init.h",
-    "src/core/surface/lame_client.h",
-    "src/core/surface/server.h",
-    "src/core/surface/surface_trace.h",
-    "src/core/transport/byte_stream.h",
-    "src/core/transport/chttp2/alpn.h",
-    "src/core/transport/chttp2/bin_encoder.h",
-    "src/core/transport/chttp2/frame.h",
-    "src/core/transport/chttp2/frame_data.h",
-    "src/core/transport/chttp2/frame_goaway.h",
-    "src/core/transport/chttp2/frame_ping.h",
-    "src/core/transport/chttp2/frame_rst_stream.h",
-    "src/core/transport/chttp2/frame_settings.h",
-    "src/core/transport/chttp2/frame_window_update.h",
-    "src/core/transport/chttp2/hpack_encoder.h",
-    "src/core/transport/chttp2/hpack_parser.h",
-    "src/core/transport/chttp2/hpack_table.h",
-    "src/core/transport/chttp2/http2_errors.h",
-    "src/core/transport/chttp2/huffsyms.h",
-    "src/core/transport/chttp2/incoming_metadata.h",
-    "src/core/transport/chttp2/internal.h",
-    "src/core/transport/chttp2/status_conversion.h",
-    "src/core/transport/chttp2/stream_map.h",
-    "src/core/transport/chttp2/timeout_encoding.h",
-    "src/core/transport/chttp2/varint.h",
-    "src/core/transport/chttp2_transport.h",
-    "src/core/transport/connectivity_state.h",
-    "src/core/transport/metadata.h",
-    "src/core/transport/metadata_batch.h",
-    "src/core/transport/static_metadata.h",
-    "src/core/transport/transport.h",
-    "src/core/transport/transport_impl.h",
-    "src/core/security/auth_filters.h",
-    "src/core/security/b64.h",
-    "src/core/security/credentials.h",
-    "src/core/security/handshake.h",
-    "src/core/security/json_token.h",
-    "src/core/security/jwt_verifier.h",
-    "src/core/security/secure_endpoint.h",
-    "src/core/security/security_connector.h",
-    "src/core/security/security_context.h",
-    "src/core/tsi/fake_transport_security.h",
-    "src/core/tsi/ssl_transport_security.h",
-    "src/core/tsi/ssl_types.h",
-    "src/core/tsi/transport_security.h",
-    "src/core/tsi/transport_security_interface.h",
-    "src/core/census/aggregation.h",
-    "src/core/census/mlog.h",
-    "src/core/census/rpc_metric_id.h",
+    "src/core/lib/census/grpc_filter.h",
+    "src/core/lib/census/grpc_plugin.h",
+    "src/core/lib/channel/channel_args.h",
+    "src/core/lib/channel/channel_stack.h",
+    "src/core/lib/channel/channel_stack_builder.h",
+    "src/core/lib/channel/client_channel.h",
+    "src/core/lib/channel/compress_filter.h",
+    "src/core/lib/channel/connected_channel.h",
+    "src/core/lib/channel/context.h",
+    "src/core/lib/channel/http_client_filter.h",
+    "src/core/lib/channel/http_server_filter.h",
+    "src/core/lib/channel/subchannel_call_holder.h",
+    "src/core/lib/client_config/client_config.h",
+    "src/core/lib/client_config/connector.h",
+    "src/core/lib/client_config/initial_connect_string.h",
+    "src/core/lib/client_config/lb_policies/load_balancer_api.h",
+    "src/core/lib/client_config/lb_policies/pick_first.h",
+    "src/core/lib/client_config/lb_policies/round_robin.h",
+    "src/core/lib/client_config/lb_policy.h",
+    "src/core/lib/client_config/lb_policy_factory.h",
+    "src/core/lib/client_config/lb_policy_registry.h",
+    "src/core/lib/client_config/resolver.h",
+    "src/core/lib/client_config/resolver_factory.h",
+    "src/core/lib/client_config/resolver_registry.h",
+    "src/core/lib/client_config/resolvers/dns_resolver.h",
+    "src/core/lib/client_config/resolvers/sockaddr_resolver.h",
+    "src/core/lib/client_config/subchannel.h",
+    "src/core/lib/client_config/subchannel_factory.h",
+    "src/core/lib/client_config/subchannel_index.h",
+    "src/core/lib/client_config/uri_parser.h",
+    "src/core/lib/compression/algorithm_metadata.h",
+    "src/core/lib/compression/message_compress.h",
+    "src/core/lib/debug/trace.h",
+    "src/core/lib/http/format_request.h",
+    "src/core/lib/http/httpcli.h",
+    "src/core/lib/http/parser.h",
+    "src/core/lib/iomgr/closure.h",
+    "src/core/lib/iomgr/endpoint.h",
+    "src/core/lib/iomgr/endpoint_pair.h",
+    "src/core/lib/iomgr/ev_poll_and_epoll_posix.h",
+    "src/core/lib/iomgr/ev_posix.h",
+    "src/core/lib/iomgr/exec_ctx.h",
+    "src/core/lib/iomgr/executor.h",
+    "src/core/lib/iomgr/iocp_windows.h",
+    "src/core/lib/iomgr/iomgr.h",
+    "src/core/lib/iomgr/iomgr_internal.h",
+    "src/core/lib/iomgr/iomgr_posix.h",
+    "src/core/lib/iomgr/pollset.h",
+    "src/core/lib/iomgr/pollset_posix.h",
+    "src/core/lib/iomgr/pollset_set.h",
+    "src/core/lib/iomgr/pollset_set_posix.h",
+    "src/core/lib/iomgr/pollset_set_windows.h",
+    "src/core/lib/iomgr/pollset_windows.h",
+    "src/core/lib/iomgr/resolve_address.h",
+    "src/core/lib/iomgr/sockaddr.h",
+    "src/core/lib/iomgr/sockaddr_posix.h",
+    "src/core/lib/iomgr/sockaddr_utils.h",
+    "src/core/lib/iomgr/sockaddr_win32.h",
+    "src/core/lib/iomgr/socket_utils_posix.h",
+    "src/core/lib/iomgr/socket_windows.h",
+    "src/core/lib/iomgr/tcp_client.h",
+    "src/core/lib/iomgr/tcp_posix.h",
+    "src/core/lib/iomgr/tcp_server.h",
+    "src/core/lib/iomgr/tcp_windows.h",
+    "src/core/lib/iomgr/time_averaged_stats.h",
+    "src/core/lib/iomgr/timer.h",
+    "src/core/lib/iomgr/timer_heap.h",
+    "src/core/lib/iomgr/udp_server.h",
+    "src/core/lib/iomgr/unix_sockets_posix.h",
+    "src/core/lib/iomgr/wakeup_fd_pipe.h",
+    "src/core/lib/iomgr/wakeup_fd_posix.h",
+    "src/core/lib/iomgr/workqueue.h",
+    "src/core/lib/iomgr/workqueue_posix.h",
+    "src/core/lib/iomgr/workqueue_windows.h",
+    "src/core/lib/json/json.h",
+    "src/core/lib/json/json_common.h",
+    "src/core/lib/json/json_reader.h",
+    "src/core/lib/json/json_writer.h",
+    "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h",
+    "src/core/lib/statistics/census_interface.h",
+    "src/core/lib/statistics/census_rpc_stats.h",
+    "src/core/lib/surface/api_trace.h",
+    "src/core/lib/surface/call.h",
+    "src/core/lib/surface/call_test_only.h",
+    "src/core/lib/surface/channel.h",
+    "src/core/lib/surface/channel_init.h",
+    "src/core/lib/surface/channel_stack_type.h",
+    "src/core/lib/surface/completion_queue.h",
+    "src/core/lib/surface/event_string.h",
+    "src/core/lib/surface/init.h",
+    "src/core/lib/surface/lame_client.h",
+    "src/core/lib/surface/server.h",
+    "src/core/lib/surface/surface_trace.h",
+    "src/core/lib/transport/byte_stream.h",
+    "src/core/lib/transport/chttp2/alpn.h",
+    "src/core/lib/transport/chttp2/bin_encoder.h",
+    "src/core/lib/transport/chttp2/frame.h",
+    "src/core/lib/transport/chttp2/frame_data.h",
+    "src/core/lib/transport/chttp2/frame_goaway.h",
+    "src/core/lib/transport/chttp2/frame_ping.h",
+    "src/core/lib/transport/chttp2/frame_rst_stream.h",
+    "src/core/lib/transport/chttp2/frame_settings.h",
+    "src/core/lib/transport/chttp2/frame_window_update.h",
+    "src/core/lib/transport/chttp2/hpack_encoder.h",
+    "src/core/lib/transport/chttp2/hpack_parser.h",
+    "src/core/lib/transport/chttp2/hpack_table.h",
+    "src/core/lib/transport/chttp2/http2_errors.h",
+    "src/core/lib/transport/chttp2/huffsyms.h",
+    "src/core/lib/transport/chttp2/incoming_metadata.h",
+    "src/core/lib/transport/chttp2/internal.h",
+    "src/core/lib/transport/chttp2/status_conversion.h",
+    "src/core/lib/transport/chttp2/stream_map.h",
+    "src/core/lib/transport/chttp2/timeout_encoding.h",
+    "src/core/lib/transport/chttp2/varint.h",
+    "src/core/lib/transport/chttp2_transport.h",
+    "src/core/lib/transport/connectivity_state.h",
+    "src/core/lib/transport/metadata.h",
+    "src/core/lib/transport/metadata_batch.h",
+    "src/core/lib/transport/static_metadata.h",
+    "src/core/lib/transport/transport.h",
+    "src/core/lib/transport/transport_impl.h",
+    "src/core/lib/security/auth_filters.h",
+    "src/core/lib/security/b64.h",
+    "src/core/lib/security/credentials.h",
+    "src/core/lib/security/handshake.h",
+    "src/core/lib/security/json_token.h",
+    "src/core/lib/security/jwt_verifier.h",
+    "src/core/lib/security/secure_endpoint.h",
+    "src/core/lib/security/security_connector.h",
+    "src/core/lib/security/security_context.h",
+    "src/core/lib/tsi/fake_transport_security.h",
+    "src/core/lib/tsi/ssl_transport_security.h",
+    "src/core/lib/tsi/ssl_types.h",
+    "src/core/lib/tsi/transport_security.h",
+    "src/core/lib/tsi/transport_security_interface.h",
+    "src/core/lib/census/aggregation.h",
+    "src/core/lib/census/mlog.h",
+    "src/core/lib/census/rpc_metric_id.h",
     "third_party/nanopb/pb.h",
     "third_party/nanopb/pb_common.h",
     "third_party/nanopb/pb_decode.h",
     "third_party/nanopb/pb_encode.h",
-    "src/core/census/grpc_context.c",
-    "src/core/census/grpc_filter.c",
-    "src/core/census/grpc_plugin.c",
-    "src/core/channel/channel_args.c",
-    "src/core/channel/channel_stack.c",
-    "src/core/channel/channel_stack_builder.c",
-    "src/core/channel/client_channel.c",
-    "src/core/channel/client_uchannel.c",
-    "src/core/channel/compress_filter.c",
-    "src/core/channel/connected_channel.c",
-    "src/core/channel/http_client_filter.c",
-    "src/core/channel/http_server_filter.c",
-    "src/core/channel/subchannel_call_holder.c",
-    "src/core/client_config/client_config.c",
-    "src/core/client_config/connector.c",
-    "src/core/client_config/default_initial_connect_string.c",
-    "src/core/client_config/initial_connect_string.c",
-    "src/core/client_config/lb_policies/load_balancer_api.c",
-    "src/core/client_config/lb_policies/pick_first.c",
-    "src/core/client_config/lb_policies/round_robin.c",
-    "src/core/client_config/lb_policy.c",
-    "src/core/client_config/lb_policy_factory.c",
-    "src/core/client_config/lb_policy_registry.c",
-    "src/core/client_config/resolver.c",
-    "src/core/client_config/resolver_factory.c",
-    "src/core/client_config/resolver_registry.c",
-    "src/core/client_config/resolvers/dns_resolver.c",
-    "src/core/client_config/resolvers/sockaddr_resolver.c",
-    "src/core/client_config/subchannel.c",
-    "src/core/client_config/subchannel_factory.c",
-    "src/core/client_config/subchannel_index.c",
-    "src/core/client_config/uri_parser.c",
-    "src/core/compression/compression_algorithm.c",
-    "src/core/compression/message_compress.c",
-    "src/core/debug/trace.c",
-    "src/core/httpcli/format_request.c",
-    "src/core/httpcli/httpcli.c",
-    "src/core/httpcli/parser.c",
-    "src/core/iomgr/closure.c",
-    "src/core/iomgr/endpoint.c",
-    "src/core/iomgr/endpoint_pair_posix.c",
-    "src/core/iomgr/endpoint_pair_windows.c",
-    "src/core/iomgr/ev_poll_and_epoll_posix.c",
-    "src/core/iomgr/ev_posix.c",
-    "src/core/iomgr/exec_ctx.c",
-    "src/core/iomgr/executor.c",
-    "src/core/iomgr/iocp_windows.c",
-    "src/core/iomgr/iomgr.c",
-    "src/core/iomgr/iomgr_posix.c",
-    "src/core/iomgr/iomgr_windows.c",
-    "src/core/iomgr/pollset_set_windows.c",
-    "src/core/iomgr/pollset_windows.c",
-    "src/core/iomgr/resolve_address_posix.c",
-    "src/core/iomgr/resolve_address_windows.c",
-    "src/core/iomgr/sockaddr_utils.c",
-    "src/core/iomgr/socket_utils_common_posix.c",
-    "src/core/iomgr/socket_utils_linux.c",
-    "src/core/iomgr/socket_utils_posix.c",
-    "src/core/iomgr/socket_windows.c",
-    "src/core/iomgr/tcp_client_posix.c",
-    "src/core/iomgr/tcp_client_windows.c",
-    "src/core/iomgr/tcp_posix.c",
-    "src/core/iomgr/tcp_server_posix.c",
-    "src/core/iomgr/tcp_server_windows.c",
-    "src/core/iomgr/tcp_windows.c",
-    "src/core/iomgr/time_averaged_stats.c",
-    "src/core/iomgr/timer.c",
-    "src/core/iomgr/timer_heap.c",
-    "src/core/iomgr/udp_server.c",
-    "src/core/iomgr/wakeup_fd_eventfd.c",
-    "src/core/iomgr/wakeup_fd_nospecial.c",
-    "src/core/iomgr/wakeup_fd_pipe.c",
-    "src/core/iomgr/wakeup_fd_posix.c",
-    "src/core/iomgr/workqueue_posix.c",
-    "src/core/iomgr/workqueue_windows.c",
-    "src/core/json/json.c",
-    "src/core/json/json_reader.c",
-    "src/core/json/json_string.c",
-    "src/core/json/json_writer.c",
-    "src/core/proto/grpc/lb/v0/load_balancer.pb.c",
-    "src/core/surface/alarm.c",
-    "src/core/surface/api_trace.c",
-    "src/core/surface/byte_buffer.c",
-    "src/core/surface/byte_buffer_reader.c",
-    "src/core/surface/call.c",
-    "src/core/surface/call_details.c",
-    "src/core/surface/call_log_batch.c",
-    "src/core/surface/channel.c",
-    "src/core/surface/channel_connectivity.c",
-    "src/core/surface/channel_create.c",
-    "src/core/surface/channel_init.c",
-    "src/core/surface/channel_ping.c",
-    "src/core/surface/channel_stack_type.c",
-    "src/core/surface/completion_queue.c",
-    "src/core/surface/event_string.c",
-    "src/core/surface/init.c",
-    "src/core/surface/lame_client.c",
-    "src/core/surface/metadata_array.c",
-    "src/core/surface/server.c",
-    "src/core/surface/server_chttp2.c",
-    "src/core/surface/validate_metadata.c",
-    "src/core/surface/version.c",
-    "src/core/transport/byte_stream.c",
-    "src/core/transport/chttp2/alpn.c",
-    "src/core/transport/chttp2/bin_encoder.c",
-    "src/core/transport/chttp2/frame_data.c",
-    "src/core/transport/chttp2/frame_goaway.c",
-    "src/core/transport/chttp2/frame_ping.c",
-    "src/core/transport/chttp2/frame_rst_stream.c",
-    "src/core/transport/chttp2/frame_settings.c",
-    "src/core/transport/chttp2/frame_window_update.c",
-    "src/core/transport/chttp2/hpack_encoder.c",
-    "src/core/transport/chttp2/hpack_parser.c",
-    "src/core/transport/chttp2/hpack_table.c",
-    "src/core/transport/chttp2/huffsyms.c",
-    "src/core/transport/chttp2/incoming_metadata.c",
-    "src/core/transport/chttp2/parsing.c",
-    "src/core/transport/chttp2/status_conversion.c",
-    "src/core/transport/chttp2/stream_lists.c",
-    "src/core/transport/chttp2/stream_map.c",
-    "src/core/transport/chttp2/timeout_encoding.c",
-    "src/core/transport/chttp2/varint.c",
-    "src/core/transport/chttp2/writing.c",
-    "src/core/transport/chttp2_transport.c",
-    "src/core/transport/connectivity_state.c",
-    "src/core/transport/metadata.c",
-    "src/core/transport/metadata_batch.c",
-    "src/core/transport/static_metadata.c",
-    "src/core/transport/transport.c",
-    "src/core/transport/transport_op_string.c",
-    "src/core/httpcli/httpcli_security_connector.c",
-    "src/core/security/b64.c",
-    "src/core/security/client_auth_filter.c",
-    "src/core/security/credentials.c",
-    "src/core/security/credentials_metadata.c",
-    "src/core/security/credentials_posix.c",
-    "src/core/security/credentials_win32.c",
-    "src/core/security/google_default_credentials.c",
-    "src/core/security/handshake.c",
-    "src/core/security/json_token.c",
-    "src/core/security/jwt_verifier.c",
-    "src/core/security/secure_endpoint.c",
-    "src/core/security/security_connector.c",
-    "src/core/security/security_context.c",
-    "src/core/security/server_auth_filter.c",
-    "src/core/security/server_secure_chttp2.c",
-    "src/core/surface/init_secure.c",
-    "src/core/surface/secure_channel_create.c",
-    "src/core/tsi/fake_transport_security.c",
-    "src/core/tsi/ssl_transport_security.c",
-    "src/core/tsi/transport_security.c",
-    "src/core/census/context.c",
-    "src/core/census/initialize.c",
-    "src/core/census/mlog.c",
-    "src/core/census/operation.c",
-    "src/core/census/placeholders.c",
-    "src/core/census/tracing.c",
+    "src/core/lib/census/grpc_context.c",
+    "src/core/lib/census/grpc_filter.c",
+    "src/core/lib/census/grpc_plugin.c",
+    "src/core/lib/channel/channel_args.c",
+    "src/core/lib/channel/channel_stack.c",
+    "src/core/lib/channel/channel_stack_builder.c",
+    "src/core/lib/channel/client_channel.c",
+    "src/core/lib/channel/compress_filter.c",
+    "src/core/lib/channel/connected_channel.c",
+    "src/core/lib/channel/http_client_filter.c",
+    "src/core/lib/channel/http_server_filter.c",
+    "src/core/lib/channel/subchannel_call_holder.c",
+    "src/core/lib/client_config/client_config.c",
+    "src/core/lib/client_config/connector.c",
+    "src/core/lib/client_config/default_initial_connect_string.c",
+    "src/core/lib/client_config/initial_connect_string.c",
+    "src/core/lib/client_config/lb_policies/load_balancer_api.c",
+    "src/core/lib/client_config/lb_policies/pick_first.c",
+    "src/core/lib/client_config/lb_policies/round_robin.c",
+    "src/core/lib/client_config/lb_policy.c",
+    "src/core/lib/client_config/lb_policy_factory.c",
+    "src/core/lib/client_config/lb_policy_registry.c",
+    "src/core/lib/client_config/resolver.c",
+    "src/core/lib/client_config/resolver_factory.c",
+    "src/core/lib/client_config/resolver_registry.c",
+    "src/core/lib/client_config/resolvers/dns_resolver.c",
+    "src/core/lib/client_config/resolvers/sockaddr_resolver.c",
+    "src/core/lib/client_config/subchannel.c",
+    "src/core/lib/client_config/subchannel_factory.c",
+    "src/core/lib/client_config/subchannel_index.c",
+    "src/core/lib/client_config/uri_parser.c",
+    "src/core/lib/compression/compression_algorithm.c",
+    "src/core/lib/compression/message_compress.c",
+    "src/core/lib/debug/trace.c",
+    "src/core/lib/http/format_request.c",
+    "src/core/lib/http/httpcli.c",
+    "src/core/lib/http/parser.c",
+    "src/core/lib/iomgr/closure.c",
+    "src/core/lib/iomgr/endpoint.c",
+    "src/core/lib/iomgr/endpoint_pair_posix.c",
+    "src/core/lib/iomgr/endpoint_pair_windows.c",
+    "src/core/lib/iomgr/ev_poll_and_epoll_posix.c",
+    "src/core/lib/iomgr/ev_posix.c",
+    "src/core/lib/iomgr/exec_ctx.c",
+    "src/core/lib/iomgr/executor.c",
+    "src/core/lib/iomgr/iocp_windows.c",
+    "src/core/lib/iomgr/iomgr.c",
+    "src/core/lib/iomgr/iomgr_posix.c",
+    "src/core/lib/iomgr/iomgr_windows.c",
+    "src/core/lib/iomgr/pollset_set_windows.c",
+    "src/core/lib/iomgr/pollset_windows.c",
+    "src/core/lib/iomgr/resolve_address_posix.c",
+    "src/core/lib/iomgr/resolve_address_windows.c",
+    "src/core/lib/iomgr/sockaddr_utils.c",
+    "src/core/lib/iomgr/socket_utils_common_posix.c",
+    "src/core/lib/iomgr/socket_utils_linux.c",
+    "src/core/lib/iomgr/socket_utils_posix.c",
+    "src/core/lib/iomgr/socket_windows.c",
+    "src/core/lib/iomgr/tcp_client_posix.c",
+    "src/core/lib/iomgr/tcp_client_windows.c",
+    "src/core/lib/iomgr/tcp_posix.c",
+    "src/core/lib/iomgr/tcp_server_posix.c",
+    "src/core/lib/iomgr/tcp_server_windows.c",
+    "src/core/lib/iomgr/tcp_windows.c",
+    "src/core/lib/iomgr/time_averaged_stats.c",
+    "src/core/lib/iomgr/timer.c",
+    "src/core/lib/iomgr/timer_heap.c",
+    "src/core/lib/iomgr/udp_server.c",
+    "src/core/lib/iomgr/unix_sockets_posix.c",
+    "src/core/lib/iomgr/unix_sockets_posix_noop.c",
+    "src/core/lib/iomgr/wakeup_fd_eventfd.c",
+    "src/core/lib/iomgr/wakeup_fd_nospecial.c",
+    "src/core/lib/iomgr/wakeup_fd_pipe.c",
+    "src/core/lib/iomgr/wakeup_fd_posix.c",
+    "src/core/lib/iomgr/workqueue_posix.c",
+    "src/core/lib/iomgr/workqueue_windows.c",
+    "src/core/lib/json/json.c",
+    "src/core/lib/json/json_reader.c",
+    "src/core/lib/json/json_string.c",
+    "src/core/lib/json/json_writer.c",
+    "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c",
+    "src/core/lib/surface/alarm.c",
+    "src/core/lib/surface/api_trace.c",
+    "src/core/lib/surface/byte_buffer.c",
+    "src/core/lib/surface/byte_buffer_reader.c",
+    "src/core/lib/surface/call.c",
+    "src/core/lib/surface/call_details.c",
+    "src/core/lib/surface/call_log_batch.c",
+    "src/core/lib/surface/channel.c",
+    "src/core/lib/surface/channel_connectivity.c",
+    "src/core/lib/surface/channel_create.c",
+    "src/core/lib/surface/channel_init.c",
+    "src/core/lib/surface/channel_ping.c",
+    "src/core/lib/surface/channel_stack_type.c",
+    "src/core/lib/surface/completion_queue.c",
+    "src/core/lib/surface/event_string.c",
+    "src/core/lib/surface/init.c",
+    "src/core/lib/surface/lame_client.c",
+    "src/core/lib/surface/metadata_array.c",
+    "src/core/lib/surface/server.c",
+    "src/core/lib/surface/server_chttp2.c",
+    "src/core/lib/surface/validate_metadata.c",
+    "src/core/lib/surface/version.c",
+    "src/core/lib/transport/byte_stream.c",
+    "src/core/lib/transport/chttp2/alpn.c",
+    "src/core/lib/transport/chttp2/bin_encoder.c",
+    "src/core/lib/transport/chttp2/frame_data.c",
+    "src/core/lib/transport/chttp2/frame_goaway.c",
+    "src/core/lib/transport/chttp2/frame_ping.c",
+    "src/core/lib/transport/chttp2/frame_rst_stream.c",
+    "src/core/lib/transport/chttp2/frame_settings.c",
+    "src/core/lib/transport/chttp2/frame_window_update.c",
+    "src/core/lib/transport/chttp2/hpack_encoder.c",
+    "src/core/lib/transport/chttp2/hpack_parser.c",
+    "src/core/lib/transport/chttp2/hpack_table.c",
+    "src/core/lib/transport/chttp2/huffsyms.c",
+    "src/core/lib/transport/chttp2/incoming_metadata.c",
+    "src/core/lib/transport/chttp2/parsing.c",
+    "src/core/lib/transport/chttp2/status_conversion.c",
+    "src/core/lib/transport/chttp2/stream_lists.c",
+    "src/core/lib/transport/chttp2/stream_map.c",
+    "src/core/lib/transport/chttp2/timeout_encoding.c",
+    "src/core/lib/transport/chttp2/varint.c",
+    "src/core/lib/transport/chttp2/writing.c",
+    "src/core/lib/transport/chttp2_transport.c",
+    "src/core/lib/transport/connectivity_state.c",
+    "src/core/lib/transport/metadata.c",
+    "src/core/lib/transport/metadata_batch.c",
+    "src/core/lib/transport/static_metadata.c",
+    "src/core/lib/transport/transport.c",
+    "src/core/lib/transport/transport_op_string.c",
+    "src/core/lib/http/httpcli_security_connector.c",
+    "src/core/lib/security/b64.c",
+    "src/core/lib/security/client_auth_filter.c",
+    "src/core/lib/security/credentials.c",
+    "src/core/lib/security/credentials_metadata.c",
+    "src/core/lib/security/credentials_posix.c",
+    "src/core/lib/security/credentials_win32.c",
+    "src/core/lib/security/google_default_credentials.c",
+    "src/core/lib/security/handshake.c",
+    "src/core/lib/security/json_token.c",
+    "src/core/lib/security/jwt_verifier.c",
+    "src/core/lib/security/secure_endpoint.c",
+    "src/core/lib/security/security_connector.c",
+    "src/core/lib/security/security_context.c",
+    "src/core/lib/security/server_auth_filter.c",
+    "src/core/lib/security/server_secure_chttp2.c",
+    "src/core/lib/surface/init_secure.c",
+    "src/core/lib/surface/secure_channel_create.c",
+    "src/core/lib/tsi/fake_transport_security.c",
+    "src/core/lib/tsi/ssl_transport_security.c",
+    "src/core/lib/tsi/transport_security.c",
+    "src/core/lib/census/context.c",
+    "src/core/lib/census/initialize.c",
+    "src/core/lib/census/mlog.c",
+    "src/core/lib/census/operation.c",
+    "src/core/lib/census/placeholders.c",
+    "src/core/lib/census/tracing.c",
     "third_party/nanopb/pb_common.c",
     "third_party/nanopb/pb_decode.c",
     "third_party/nanopb/pb_encode.c",
@@ -527,269 +530,272 @@
 cc_library(
   name = "grpc_unsecure",
   srcs = [
-    "src/core/census/grpc_filter.h",
-    "src/core/census/grpc_plugin.h",
-    "src/core/channel/channel_args.h",
-    "src/core/channel/channel_stack.h",
-    "src/core/channel/channel_stack_builder.h",
-    "src/core/channel/client_channel.h",
-    "src/core/channel/client_uchannel.h",
-    "src/core/channel/compress_filter.h",
-    "src/core/channel/connected_channel.h",
-    "src/core/channel/context.h",
-    "src/core/channel/http_client_filter.h",
-    "src/core/channel/http_server_filter.h",
-    "src/core/channel/subchannel_call_holder.h",
-    "src/core/client_config/client_config.h",
-    "src/core/client_config/connector.h",
-    "src/core/client_config/initial_connect_string.h",
-    "src/core/client_config/lb_policies/load_balancer_api.h",
-    "src/core/client_config/lb_policies/pick_first.h",
-    "src/core/client_config/lb_policies/round_robin.h",
-    "src/core/client_config/lb_policy.h",
-    "src/core/client_config/lb_policy_factory.h",
-    "src/core/client_config/lb_policy_registry.h",
-    "src/core/client_config/resolver.h",
-    "src/core/client_config/resolver_factory.h",
-    "src/core/client_config/resolver_registry.h",
-    "src/core/client_config/resolvers/dns_resolver.h",
-    "src/core/client_config/resolvers/sockaddr_resolver.h",
-    "src/core/client_config/subchannel.h",
-    "src/core/client_config/subchannel_factory.h",
-    "src/core/client_config/subchannel_index.h",
-    "src/core/client_config/uri_parser.h",
-    "src/core/compression/algorithm_metadata.h",
-    "src/core/compression/message_compress.h",
-    "src/core/debug/trace.h",
-    "src/core/httpcli/format_request.h",
-    "src/core/httpcli/httpcli.h",
-    "src/core/httpcli/parser.h",
-    "src/core/iomgr/closure.h",
-    "src/core/iomgr/endpoint.h",
-    "src/core/iomgr/endpoint_pair.h",
-    "src/core/iomgr/ev_poll_and_epoll_posix.h",
-    "src/core/iomgr/ev_posix.h",
-    "src/core/iomgr/exec_ctx.h",
-    "src/core/iomgr/executor.h",
-    "src/core/iomgr/iocp_windows.h",
-    "src/core/iomgr/iomgr.h",
-    "src/core/iomgr/iomgr_internal.h",
-    "src/core/iomgr/iomgr_posix.h",
-    "src/core/iomgr/pollset.h",
-    "src/core/iomgr/pollset_set.h",
-    "src/core/iomgr/pollset_set_windows.h",
-    "src/core/iomgr/pollset_windows.h",
-    "src/core/iomgr/resolve_address.h",
-    "src/core/iomgr/sockaddr.h",
-    "src/core/iomgr/sockaddr_posix.h",
-    "src/core/iomgr/sockaddr_utils.h",
-    "src/core/iomgr/sockaddr_win32.h",
-    "src/core/iomgr/socket_utils_posix.h",
-    "src/core/iomgr/socket_windows.h",
-    "src/core/iomgr/tcp_client.h",
-    "src/core/iomgr/tcp_posix.h",
-    "src/core/iomgr/tcp_server.h",
-    "src/core/iomgr/tcp_windows.h",
-    "src/core/iomgr/time_averaged_stats.h",
-    "src/core/iomgr/timer.h",
-    "src/core/iomgr/timer_heap.h",
-    "src/core/iomgr/udp_server.h",
-    "src/core/iomgr/wakeup_fd_pipe.h",
-    "src/core/iomgr/wakeup_fd_posix.h",
-    "src/core/iomgr/workqueue.h",
-    "src/core/iomgr/workqueue_posix.h",
-    "src/core/iomgr/workqueue_windows.h",
-    "src/core/json/json.h",
-    "src/core/json/json_common.h",
-    "src/core/json/json_reader.h",
-    "src/core/json/json_writer.h",
-    "src/core/proto/grpc/lb/v0/load_balancer.pb.h",
-    "src/core/statistics/census_interface.h",
-    "src/core/statistics/census_rpc_stats.h",
-    "src/core/surface/api_trace.h",
-    "src/core/surface/call.h",
-    "src/core/surface/call_test_only.h",
-    "src/core/surface/channel.h",
-    "src/core/surface/channel_init.h",
-    "src/core/surface/channel_stack_type.h",
-    "src/core/surface/completion_queue.h",
-    "src/core/surface/event_string.h",
-    "src/core/surface/init.h",
-    "src/core/surface/lame_client.h",
-    "src/core/surface/server.h",
-    "src/core/surface/surface_trace.h",
-    "src/core/transport/byte_stream.h",
-    "src/core/transport/chttp2/alpn.h",
-    "src/core/transport/chttp2/bin_encoder.h",
-    "src/core/transport/chttp2/frame.h",
-    "src/core/transport/chttp2/frame_data.h",
-    "src/core/transport/chttp2/frame_goaway.h",
-    "src/core/transport/chttp2/frame_ping.h",
-    "src/core/transport/chttp2/frame_rst_stream.h",
-    "src/core/transport/chttp2/frame_settings.h",
-    "src/core/transport/chttp2/frame_window_update.h",
-    "src/core/transport/chttp2/hpack_encoder.h",
-    "src/core/transport/chttp2/hpack_parser.h",
-    "src/core/transport/chttp2/hpack_table.h",
-    "src/core/transport/chttp2/http2_errors.h",
-    "src/core/transport/chttp2/huffsyms.h",
-    "src/core/transport/chttp2/incoming_metadata.h",
-    "src/core/transport/chttp2/internal.h",
-    "src/core/transport/chttp2/status_conversion.h",
-    "src/core/transport/chttp2/stream_map.h",
-    "src/core/transport/chttp2/timeout_encoding.h",
-    "src/core/transport/chttp2/varint.h",
-    "src/core/transport/chttp2_transport.h",
-    "src/core/transport/connectivity_state.h",
-    "src/core/transport/metadata.h",
-    "src/core/transport/metadata_batch.h",
-    "src/core/transport/static_metadata.h",
-    "src/core/transport/transport.h",
-    "src/core/transport/transport_impl.h",
-    "src/core/census/aggregation.h",
-    "src/core/census/mlog.h",
-    "src/core/census/rpc_metric_id.h",
+    "src/core/lib/census/grpc_filter.h",
+    "src/core/lib/census/grpc_plugin.h",
+    "src/core/lib/channel/channel_args.h",
+    "src/core/lib/channel/channel_stack.h",
+    "src/core/lib/channel/channel_stack_builder.h",
+    "src/core/lib/channel/client_channel.h",
+    "src/core/lib/channel/compress_filter.h",
+    "src/core/lib/channel/connected_channel.h",
+    "src/core/lib/channel/context.h",
+    "src/core/lib/channel/http_client_filter.h",
+    "src/core/lib/channel/http_server_filter.h",
+    "src/core/lib/channel/subchannel_call_holder.h",
+    "src/core/lib/client_config/client_config.h",
+    "src/core/lib/client_config/connector.h",
+    "src/core/lib/client_config/initial_connect_string.h",
+    "src/core/lib/client_config/lb_policies/load_balancer_api.h",
+    "src/core/lib/client_config/lb_policies/pick_first.h",
+    "src/core/lib/client_config/lb_policies/round_robin.h",
+    "src/core/lib/client_config/lb_policy.h",
+    "src/core/lib/client_config/lb_policy_factory.h",
+    "src/core/lib/client_config/lb_policy_registry.h",
+    "src/core/lib/client_config/resolver.h",
+    "src/core/lib/client_config/resolver_factory.h",
+    "src/core/lib/client_config/resolver_registry.h",
+    "src/core/lib/client_config/resolvers/dns_resolver.h",
+    "src/core/lib/client_config/resolvers/sockaddr_resolver.h",
+    "src/core/lib/client_config/subchannel.h",
+    "src/core/lib/client_config/subchannel_factory.h",
+    "src/core/lib/client_config/subchannel_index.h",
+    "src/core/lib/client_config/uri_parser.h",
+    "src/core/lib/compression/algorithm_metadata.h",
+    "src/core/lib/compression/message_compress.h",
+    "src/core/lib/debug/trace.h",
+    "src/core/lib/http/format_request.h",
+    "src/core/lib/http/httpcli.h",
+    "src/core/lib/http/parser.h",
+    "src/core/lib/iomgr/closure.h",
+    "src/core/lib/iomgr/endpoint.h",
+    "src/core/lib/iomgr/endpoint_pair.h",
+    "src/core/lib/iomgr/ev_poll_and_epoll_posix.h",
+    "src/core/lib/iomgr/ev_posix.h",
+    "src/core/lib/iomgr/exec_ctx.h",
+    "src/core/lib/iomgr/executor.h",
+    "src/core/lib/iomgr/iocp_windows.h",
+    "src/core/lib/iomgr/iomgr.h",
+    "src/core/lib/iomgr/iomgr_internal.h",
+    "src/core/lib/iomgr/iomgr_posix.h",
+    "src/core/lib/iomgr/pollset.h",
+    "src/core/lib/iomgr/pollset_posix.h",
+    "src/core/lib/iomgr/pollset_set.h",
+    "src/core/lib/iomgr/pollset_set_posix.h",
+    "src/core/lib/iomgr/pollset_set_windows.h",
+    "src/core/lib/iomgr/pollset_windows.h",
+    "src/core/lib/iomgr/resolve_address.h",
+    "src/core/lib/iomgr/sockaddr.h",
+    "src/core/lib/iomgr/sockaddr_posix.h",
+    "src/core/lib/iomgr/sockaddr_utils.h",
+    "src/core/lib/iomgr/sockaddr_win32.h",
+    "src/core/lib/iomgr/socket_utils_posix.h",
+    "src/core/lib/iomgr/socket_windows.h",
+    "src/core/lib/iomgr/tcp_client.h",
+    "src/core/lib/iomgr/tcp_posix.h",
+    "src/core/lib/iomgr/tcp_server.h",
+    "src/core/lib/iomgr/tcp_windows.h",
+    "src/core/lib/iomgr/time_averaged_stats.h",
+    "src/core/lib/iomgr/timer.h",
+    "src/core/lib/iomgr/timer_heap.h",
+    "src/core/lib/iomgr/udp_server.h",
+    "src/core/lib/iomgr/unix_sockets_posix.h",
+    "src/core/lib/iomgr/wakeup_fd_pipe.h",
+    "src/core/lib/iomgr/wakeup_fd_posix.h",
+    "src/core/lib/iomgr/workqueue.h",
+    "src/core/lib/iomgr/workqueue_posix.h",
+    "src/core/lib/iomgr/workqueue_windows.h",
+    "src/core/lib/json/json.h",
+    "src/core/lib/json/json_common.h",
+    "src/core/lib/json/json_reader.h",
+    "src/core/lib/json/json_writer.h",
+    "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h",
+    "src/core/lib/statistics/census_interface.h",
+    "src/core/lib/statistics/census_rpc_stats.h",
+    "src/core/lib/surface/api_trace.h",
+    "src/core/lib/surface/call.h",
+    "src/core/lib/surface/call_test_only.h",
+    "src/core/lib/surface/channel.h",
+    "src/core/lib/surface/channel_init.h",
+    "src/core/lib/surface/channel_stack_type.h",
+    "src/core/lib/surface/completion_queue.h",
+    "src/core/lib/surface/event_string.h",
+    "src/core/lib/surface/init.h",
+    "src/core/lib/surface/lame_client.h",
+    "src/core/lib/surface/server.h",
+    "src/core/lib/surface/surface_trace.h",
+    "src/core/lib/transport/byte_stream.h",
+    "src/core/lib/transport/chttp2/alpn.h",
+    "src/core/lib/transport/chttp2/bin_encoder.h",
+    "src/core/lib/transport/chttp2/frame.h",
+    "src/core/lib/transport/chttp2/frame_data.h",
+    "src/core/lib/transport/chttp2/frame_goaway.h",
+    "src/core/lib/transport/chttp2/frame_ping.h",
+    "src/core/lib/transport/chttp2/frame_rst_stream.h",
+    "src/core/lib/transport/chttp2/frame_settings.h",
+    "src/core/lib/transport/chttp2/frame_window_update.h",
+    "src/core/lib/transport/chttp2/hpack_encoder.h",
+    "src/core/lib/transport/chttp2/hpack_parser.h",
+    "src/core/lib/transport/chttp2/hpack_table.h",
+    "src/core/lib/transport/chttp2/http2_errors.h",
+    "src/core/lib/transport/chttp2/huffsyms.h",
+    "src/core/lib/transport/chttp2/incoming_metadata.h",
+    "src/core/lib/transport/chttp2/internal.h",
+    "src/core/lib/transport/chttp2/status_conversion.h",
+    "src/core/lib/transport/chttp2/stream_map.h",
+    "src/core/lib/transport/chttp2/timeout_encoding.h",
+    "src/core/lib/transport/chttp2/varint.h",
+    "src/core/lib/transport/chttp2_transport.h",
+    "src/core/lib/transport/connectivity_state.h",
+    "src/core/lib/transport/metadata.h",
+    "src/core/lib/transport/metadata_batch.h",
+    "src/core/lib/transport/static_metadata.h",
+    "src/core/lib/transport/transport.h",
+    "src/core/lib/transport/transport_impl.h",
+    "src/core/lib/census/aggregation.h",
+    "src/core/lib/census/mlog.h",
+    "src/core/lib/census/rpc_metric_id.h",
     "third_party/nanopb/pb.h",
     "third_party/nanopb/pb_common.h",
     "third_party/nanopb/pb_decode.h",
     "third_party/nanopb/pb_encode.h",
-    "src/core/surface/init_unsecure.c",
-    "src/core/census/grpc_context.c",
-    "src/core/census/grpc_filter.c",
-    "src/core/census/grpc_plugin.c",
-    "src/core/channel/channel_args.c",
-    "src/core/channel/channel_stack.c",
-    "src/core/channel/channel_stack_builder.c",
-    "src/core/channel/client_channel.c",
-    "src/core/channel/client_uchannel.c",
-    "src/core/channel/compress_filter.c",
-    "src/core/channel/connected_channel.c",
-    "src/core/channel/http_client_filter.c",
-    "src/core/channel/http_server_filter.c",
-    "src/core/channel/subchannel_call_holder.c",
-    "src/core/client_config/client_config.c",
-    "src/core/client_config/connector.c",
-    "src/core/client_config/default_initial_connect_string.c",
-    "src/core/client_config/initial_connect_string.c",
-    "src/core/client_config/lb_policies/load_balancer_api.c",
-    "src/core/client_config/lb_policies/pick_first.c",
-    "src/core/client_config/lb_policies/round_robin.c",
-    "src/core/client_config/lb_policy.c",
-    "src/core/client_config/lb_policy_factory.c",
-    "src/core/client_config/lb_policy_registry.c",
-    "src/core/client_config/resolver.c",
-    "src/core/client_config/resolver_factory.c",
-    "src/core/client_config/resolver_registry.c",
-    "src/core/client_config/resolvers/dns_resolver.c",
-    "src/core/client_config/resolvers/sockaddr_resolver.c",
-    "src/core/client_config/subchannel.c",
-    "src/core/client_config/subchannel_factory.c",
-    "src/core/client_config/subchannel_index.c",
-    "src/core/client_config/uri_parser.c",
-    "src/core/compression/compression_algorithm.c",
-    "src/core/compression/message_compress.c",
-    "src/core/debug/trace.c",
-    "src/core/httpcli/format_request.c",
-    "src/core/httpcli/httpcli.c",
-    "src/core/httpcli/parser.c",
-    "src/core/iomgr/closure.c",
-    "src/core/iomgr/endpoint.c",
-    "src/core/iomgr/endpoint_pair_posix.c",
-    "src/core/iomgr/endpoint_pair_windows.c",
-    "src/core/iomgr/ev_poll_and_epoll_posix.c",
-    "src/core/iomgr/ev_posix.c",
-    "src/core/iomgr/exec_ctx.c",
-    "src/core/iomgr/executor.c",
-    "src/core/iomgr/iocp_windows.c",
-    "src/core/iomgr/iomgr.c",
-    "src/core/iomgr/iomgr_posix.c",
-    "src/core/iomgr/iomgr_windows.c",
-    "src/core/iomgr/pollset_set_windows.c",
-    "src/core/iomgr/pollset_windows.c",
-    "src/core/iomgr/resolve_address_posix.c",
-    "src/core/iomgr/resolve_address_windows.c",
-    "src/core/iomgr/sockaddr_utils.c",
-    "src/core/iomgr/socket_utils_common_posix.c",
-    "src/core/iomgr/socket_utils_linux.c",
-    "src/core/iomgr/socket_utils_posix.c",
-    "src/core/iomgr/socket_windows.c",
-    "src/core/iomgr/tcp_client_posix.c",
-    "src/core/iomgr/tcp_client_windows.c",
-    "src/core/iomgr/tcp_posix.c",
-    "src/core/iomgr/tcp_server_posix.c",
-    "src/core/iomgr/tcp_server_windows.c",
-    "src/core/iomgr/tcp_windows.c",
-    "src/core/iomgr/time_averaged_stats.c",
-    "src/core/iomgr/timer.c",
-    "src/core/iomgr/timer_heap.c",
-    "src/core/iomgr/udp_server.c",
-    "src/core/iomgr/wakeup_fd_eventfd.c",
-    "src/core/iomgr/wakeup_fd_nospecial.c",
-    "src/core/iomgr/wakeup_fd_pipe.c",
-    "src/core/iomgr/wakeup_fd_posix.c",
-    "src/core/iomgr/workqueue_posix.c",
-    "src/core/iomgr/workqueue_windows.c",
-    "src/core/json/json.c",
-    "src/core/json/json_reader.c",
-    "src/core/json/json_string.c",
-    "src/core/json/json_writer.c",
-    "src/core/proto/grpc/lb/v0/load_balancer.pb.c",
-    "src/core/surface/alarm.c",
-    "src/core/surface/api_trace.c",
-    "src/core/surface/byte_buffer.c",
-    "src/core/surface/byte_buffer_reader.c",
-    "src/core/surface/call.c",
-    "src/core/surface/call_details.c",
-    "src/core/surface/call_log_batch.c",
-    "src/core/surface/channel.c",
-    "src/core/surface/channel_connectivity.c",
-    "src/core/surface/channel_create.c",
-    "src/core/surface/channel_init.c",
-    "src/core/surface/channel_ping.c",
-    "src/core/surface/channel_stack_type.c",
-    "src/core/surface/completion_queue.c",
-    "src/core/surface/event_string.c",
-    "src/core/surface/init.c",
-    "src/core/surface/lame_client.c",
-    "src/core/surface/metadata_array.c",
-    "src/core/surface/server.c",
-    "src/core/surface/server_chttp2.c",
-    "src/core/surface/validate_metadata.c",
-    "src/core/surface/version.c",
-    "src/core/transport/byte_stream.c",
-    "src/core/transport/chttp2/alpn.c",
-    "src/core/transport/chttp2/bin_encoder.c",
-    "src/core/transport/chttp2/frame_data.c",
-    "src/core/transport/chttp2/frame_goaway.c",
-    "src/core/transport/chttp2/frame_ping.c",
-    "src/core/transport/chttp2/frame_rst_stream.c",
-    "src/core/transport/chttp2/frame_settings.c",
-    "src/core/transport/chttp2/frame_window_update.c",
-    "src/core/transport/chttp2/hpack_encoder.c",
-    "src/core/transport/chttp2/hpack_parser.c",
-    "src/core/transport/chttp2/hpack_table.c",
-    "src/core/transport/chttp2/huffsyms.c",
-    "src/core/transport/chttp2/incoming_metadata.c",
-    "src/core/transport/chttp2/parsing.c",
-    "src/core/transport/chttp2/status_conversion.c",
-    "src/core/transport/chttp2/stream_lists.c",
-    "src/core/transport/chttp2/stream_map.c",
-    "src/core/transport/chttp2/timeout_encoding.c",
-    "src/core/transport/chttp2/varint.c",
-    "src/core/transport/chttp2/writing.c",
-    "src/core/transport/chttp2_transport.c",
-    "src/core/transport/connectivity_state.c",
-    "src/core/transport/metadata.c",
-    "src/core/transport/metadata_batch.c",
-    "src/core/transport/static_metadata.c",
-    "src/core/transport/transport.c",
-    "src/core/transport/transport_op_string.c",
-    "src/core/census/context.c",
-    "src/core/census/initialize.c",
-    "src/core/census/mlog.c",
-    "src/core/census/operation.c",
-    "src/core/census/placeholders.c",
-    "src/core/census/tracing.c",
+    "src/core/lib/surface/init_unsecure.c",
+    "src/core/lib/census/grpc_context.c",
+    "src/core/lib/census/grpc_filter.c",
+    "src/core/lib/census/grpc_plugin.c",
+    "src/core/lib/channel/channel_args.c",
+    "src/core/lib/channel/channel_stack.c",
+    "src/core/lib/channel/channel_stack_builder.c",
+    "src/core/lib/channel/client_channel.c",
+    "src/core/lib/channel/compress_filter.c",
+    "src/core/lib/channel/connected_channel.c",
+    "src/core/lib/channel/http_client_filter.c",
+    "src/core/lib/channel/http_server_filter.c",
+    "src/core/lib/channel/subchannel_call_holder.c",
+    "src/core/lib/client_config/client_config.c",
+    "src/core/lib/client_config/connector.c",
+    "src/core/lib/client_config/default_initial_connect_string.c",
+    "src/core/lib/client_config/initial_connect_string.c",
+    "src/core/lib/client_config/lb_policies/load_balancer_api.c",
+    "src/core/lib/client_config/lb_policies/pick_first.c",
+    "src/core/lib/client_config/lb_policies/round_robin.c",
+    "src/core/lib/client_config/lb_policy.c",
+    "src/core/lib/client_config/lb_policy_factory.c",
+    "src/core/lib/client_config/lb_policy_registry.c",
+    "src/core/lib/client_config/resolver.c",
+    "src/core/lib/client_config/resolver_factory.c",
+    "src/core/lib/client_config/resolver_registry.c",
+    "src/core/lib/client_config/resolvers/dns_resolver.c",
+    "src/core/lib/client_config/resolvers/sockaddr_resolver.c",
+    "src/core/lib/client_config/subchannel.c",
+    "src/core/lib/client_config/subchannel_factory.c",
+    "src/core/lib/client_config/subchannel_index.c",
+    "src/core/lib/client_config/uri_parser.c",
+    "src/core/lib/compression/compression_algorithm.c",
+    "src/core/lib/compression/message_compress.c",
+    "src/core/lib/debug/trace.c",
+    "src/core/lib/http/format_request.c",
+    "src/core/lib/http/httpcli.c",
+    "src/core/lib/http/parser.c",
+    "src/core/lib/iomgr/closure.c",
+    "src/core/lib/iomgr/endpoint.c",
+    "src/core/lib/iomgr/endpoint_pair_posix.c",
+    "src/core/lib/iomgr/endpoint_pair_windows.c",
+    "src/core/lib/iomgr/ev_poll_and_epoll_posix.c",
+    "src/core/lib/iomgr/ev_posix.c",
+    "src/core/lib/iomgr/exec_ctx.c",
+    "src/core/lib/iomgr/executor.c",
+    "src/core/lib/iomgr/iocp_windows.c",
+    "src/core/lib/iomgr/iomgr.c",
+    "src/core/lib/iomgr/iomgr_posix.c",
+    "src/core/lib/iomgr/iomgr_windows.c",
+    "src/core/lib/iomgr/pollset_set_windows.c",
+    "src/core/lib/iomgr/pollset_windows.c",
+    "src/core/lib/iomgr/resolve_address_posix.c",
+    "src/core/lib/iomgr/resolve_address_windows.c",
+    "src/core/lib/iomgr/sockaddr_utils.c",
+    "src/core/lib/iomgr/socket_utils_common_posix.c",
+    "src/core/lib/iomgr/socket_utils_linux.c",
+    "src/core/lib/iomgr/socket_utils_posix.c",
+    "src/core/lib/iomgr/socket_windows.c",
+    "src/core/lib/iomgr/tcp_client_posix.c",
+    "src/core/lib/iomgr/tcp_client_windows.c",
+    "src/core/lib/iomgr/tcp_posix.c",
+    "src/core/lib/iomgr/tcp_server_posix.c",
+    "src/core/lib/iomgr/tcp_server_windows.c",
+    "src/core/lib/iomgr/tcp_windows.c",
+    "src/core/lib/iomgr/time_averaged_stats.c",
+    "src/core/lib/iomgr/timer.c",
+    "src/core/lib/iomgr/timer_heap.c",
+    "src/core/lib/iomgr/udp_server.c",
+    "src/core/lib/iomgr/unix_sockets_posix.c",
+    "src/core/lib/iomgr/unix_sockets_posix_noop.c",
+    "src/core/lib/iomgr/wakeup_fd_eventfd.c",
+    "src/core/lib/iomgr/wakeup_fd_nospecial.c",
+    "src/core/lib/iomgr/wakeup_fd_pipe.c",
+    "src/core/lib/iomgr/wakeup_fd_posix.c",
+    "src/core/lib/iomgr/workqueue_posix.c",
+    "src/core/lib/iomgr/workqueue_windows.c",
+    "src/core/lib/json/json.c",
+    "src/core/lib/json/json_reader.c",
+    "src/core/lib/json/json_string.c",
+    "src/core/lib/json/json_writer.c",
+    "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c",
+    "src/core/lib/surface/alarm.c",
+    "src/core/lib/surface/api_trace.c",
+    "src/core/lib/surface/byte_buffer.c",
+    "src/core/lib/surface/byte_buffer_reader.c",
+    "src/core/lib/surface/call.c",
+    "src/core/lib/surface/call_details.c",
+    "src/core/lib/surface/call_log_batch.c",
+    "src/core/lib/surface/channel.c",
+    "src/core/lib/surface/channel_connectivity.c",
+    "src/core/lib/surface/channel_create.c",
+    "src/core/lib/surface/channel_init.c",
+    "src/core/lib/surface/channel_ping.c",
+    "src/core/lib/surface/channel_stack_type.c",
+    "src/core/lib/surface/completion_queue.c",
+    "src/core/lib/surface/event_string.c",
+    "src/core/lib/surface/init.c",
+    "src/core/lib/surface/lame_client.c",
+    "src/core/lib/surface/metadata_array.c",
+    "src/core/lib/surface/server.c",
+    "src/core/lib/surface/server_chttp2.c",
+    "src/core/lib/surface/validate_metadata.c",
+    "src/core/lib/surface/version.c",
+    "src/core/lib/transport/byte_stream.c",
+    "src/core/lib/transport/chttp2/alpn.c",
+    "src/core/lib/transport/chttp2/bin_encoder.c",
+    "src/core/lib/transport/chttp2/frame_data.c",
+    "src/core/lib/transport/chttp2/frame_goaway.c",
+    "src/core/lib/transport/chttp2/frame_ping.c",
+    "src/core/lib/transport/chttp2/frame_rst_stream.c",
+    "src/core/lib/transport/chttp2/frame_settings.c",
+    "src/core/lib/transport/chttp2/frame_window_update.c",
+    "src/core/lib/transport/chttp2/hpack_encoder.c",
+    "src/core/lib/transport/chttp2/hpack_parser.c",
+    "src/core/lib/transport/chttp2/hpack_table.c",
+    "src/core/lib/transport/chttp2/huffsyms.c",
+    "src/core/lib/transport/chttp2/incoming_metadata.c",
+    "src/core/lib/transport/chttp2/parsing.c",
+    "src/core/lib/transport/chttp2/status_conversion.c",
+    "src/core/lib/transport/chttp2/stream_lists.c",
+    "src/core/lib/transport/chttp2/stream_map.c",
+    "src/core/lib/transport/chttp2/timeout_encoding.c",
+    "src/core/lib/transport/chttp2/varint.c",
+    "src/core/lib/transport/chttp2/writing.c",
+    "src/core/lib/transport/chttp2_transport.c",
+    "src/core/lib/transport/connectivity_state.c",
+    "src/core/lib/transport/metadata.c",
+    "src/core/lib/transport/metadata_batch.c",
+    "src/core/lib/transport/static_metadata.c",
+    "src/core/lib/transport/transport.c",
+    "src/core/lib/transport/transport_op_string.c",
+    "src/core/lib/census/context.c",
+    "src/core/lib/census/initialize.c",
+    "src/core/lib/census/mlog.c",
+    "src/core/lib/census/operation.c",
+    "src/core/lib/census/placeholders.c",
+    "src/core/lib/census/tracing.c",
     "third_party/nanopb/pb_common.c",
     "third_party/nanopb/pb_decode.c",
     "third_party/nanopb/pb_encode.c",
@@ -824,8 +830,8 @@
 cc_library(
   name = "grpc_zookeeper",
   srcs = [
-    "src/core/client_config/resolvers/zookeeper_resolver.h",
-    "src/core/client_config/resolvers/zookeeper_resolver.c",
+    "src/core/lib/client_config/resolvers/zookeeper_resolver.h",
+    "src/core/lib/client_config/resolvers/zookeeper_resolver.c",
   ],
   hdrs = [
     "include/grpc/grpc_zookeeper.h",
@@ -1037,7 +1043,6 @@
     ".",
   ],
   deps = [
-    "//external:protobuf_compiler",
   ],
 )
 
@@ -1239,50 +1244,50 @@
 objc_library(
   name = "gpr_objc",
   srcs = [
-    "src/core/profiling/basic_timers.c",
-    "src/core/profiling/stap_timers.c",
-    "src/core/support/alloc.c",
-    "src/core/support/avl.c",
-    "src/core/support/backoff.c",
-    "src/core/support/cmdline.c",
-    "src/core/support/cpu_iphone.c",
-    "src/core/support/cpu_linux.c",
-    "src/core/support/cpu_posix.c",
-    "src/core/support/cpu_windows.c",
-    "src/core/support/env_linux.c",
-    "src/core/support/env_posix.c",
-    "src/core/support/env_win32.c",
-    "src/core/support/histogram.c",
-    "src/core/support/host_port.c",
-    "src/core/support/load_file.c",
-    "src/core/support/log.c",
-    "src/core/support/log_android.c",
-    "src/core/support/log_linux.c",
-    "src/core/support/log_posix.c",
-    "src/core/support/log_win32.c",
-    "src/core/support/murmur_hash.c",
-    "src/core/support/slice.c",
-    "src/core/support/slice_buffer.c",
-    "src/core/support/stack_lockfree.c",
-    "src/core/support/string.c",
-    "src/core/support/string_posix.c",
-    "src/core/support/string_win32.c",
-    "src/core/support/subprocess_posix.c",
-    "src/core/support/subprocess_windows.c",
-    "src/core/support/sync.c",
-    "src/core/support/sync_posix.c",
-    "src/core/support/sync_win32.c",
-    "src/core/support/thd.c",
-    "src/core/support/thd_posix.c",
-    "src/core/support/thd_win32.c",
-    "src/core/support/time.c",
-    "src/core/support/time_posix.c",
-    "src/core/support/time_precise.c",
-    "src/core/support/time_win32.c",
-    "src/core/support/tls_pthread.c",
-    "src/core/support/tmpfile_posix.c",
-    "src/core/support/tmpfile_win32.c",
-    "src/core/support/wrap_memcpy.c",
+    "src/core/lib/profiling/basic_timers.c",
+    "src/core/lib/profiling/stap_timers.c",
+    "src/core/lib/support/alloc.c",
+    "src/core/lib/support/avl.c",
+    "src/core/lib/support/backoff.c",
+    "src/core/lib/support/cmdline.c",
+    "src/core/lib/support/cpu_iphone.c",
+    "src/core/lib/support/cpu_linux.c",
+    "src/core/lib/support/cpu_posix.c",
+    "src/core/lib/support/cpu_windows.c",
+    "src/core/lib/support/env_linux.c",
+    "src/core/lib/support/env_posix.c",
+    "src/core/lib/support/env_win32.c",
+    "src/core/lib/support/histogram.c",
+    "src/core/lib/support/host_port.c",
+    "src/core/lib/support/load_file.c",
+    "src/core/lib/support/log.c",
+    "src/core/lib/support/log_android.c",
+    "src/core/lib/support/log_linux.c",
+    "src/core/lib/support/log_posix.c",
+    "src/core/lib/support/log_win32.c",
+    "src/core/lib/support/murmur_hash.c",
+    "src/core/lib/support/slice.c",
+    "src/core/lib/support/slice_buffer.c",
+    "src/core/lib/support/stack_lockfree.c",
+    "src/core/lib/support/string.c",
+    "src/core/lib/support/string_posix.c",
+    "src/core/lib/support/string_win32.c",
+    "src/core/lib/support/subprocess_posix.c",
+    "src/core/lib/support/subprocess_windows.c",
+    "src/core/lib/support/sync.c",
+    "src/core/lib/support/sync_posix.c",
+    "src/core/lib/support/sync_win32.c",
+    "src/core/lib/support/thd.c",
+    "src/core/lib/support/thd_posix.c",
+    "src/core/lib/support/thd_win32.c",
+    "src/core/lib/support/time.c",
+    "src/core/lib/support/time_posix.c",
+    "src/core/lib/support/time_precise.c",
+    "src/core/lib/support/time_win32.c",
+    "src/core/lib/support/tls_pthread.c",
+    "src/core/lib/support/tmpfile_posix.c",
+    "src/core/lib/support/tmpfile_win32.c",
+    "src/core/lib/support/wrap_memcpy.c",
   ],
   hdrs = [
     "include/grpc/support/alloc.h",
@@ -1327,18 +1332,18 @@
     "include/grpc/impl/codegen/sync_posix.h",
     "include/grpc/impl/codegen/sync_win32.h",
     "include/grpc/impl/codegen/time.h",
-    "src/core/profiling/timers.h",
-    "src/core/support/backoff.h",
-    "src/core/support/block_annotate.h",
-    "src/core/support/env.h",
-    "src/core/support/load_file.h",
-    "src/core/support/murmur_hash.h",
-    "src/core/support/stack_lockfree.h",
-    "src/core/support/string.h",
-    "src/core/support/string_win32.h",
-    "src/core/support/thd_internal.h",
-    "src/core/support/time_precise.h",
-    "src/core/support/tmpfile.h",
+    "src/core/lib/profiling/timers.h",
+    "src/core/lib/support/backoff.h",
+    "src/core/lib/support/block_annotate.h",
+    "src/core/lib/support/env.h",
+    "src/core/lib/support/load_file.h",
+    "src/core/lib/support/murmur_hash.h",
+    "src/core/lib/support/stack_lockfree.h",
+    "src/core/lib/support/string.h",
+    "src/core/lib/support/string_win32.h",
+    "src/core/lib/support/thd_internal.h",
+    "src/core/lib/support/time_precise.h",
+    "src/core/lib/support/tmpfile.h",
   ],
   includes = [
     "include",
@@ -1352,163 +1357,164 @@
 objc_library(
   name = "grpc_objc",
   srcs = [
-    "src/core/census/grpc_context.c",
-    "src/core/census/grpc_filter.c",
-    "src/core/census/grpc_plugin.c",
-    "src/core/channel/channel_args.c",
-    "src/core/channel/channel_stack.c",
-    "src/core/channel/channel_stack_builder.c",
-    "src/core/channel/client_channel.c",
-    "src/core/channel/client_uchannel.c",
-    "src/core/channel/compress_filter.c",
-    "src/core/channel/connected_channel.c",
-    "src/core/channel/http_client_filter.c",
-    "src/core/channel/http_server_filter.c",
-    "src/core/channel/subchannel_call_holder.c",
-    "src/core/client_config/client_config.c",
-    "src/core/client_config/connector.c",
-    "src/core/client_config/default_initial_connect_string.c",
-    "src/core/client_config/initial_connect_string.c",
-    "src/core/client_config/lb_policies/load_balancer_api.c",
-    "src/core/client_config/lb_policies/pick_first.c",
-    "src/core/client_config/lb_policies/round_robin.c",
-    "src/core/client_config/lb_policy.c",
-    "src/core/client_config/lb_policy_factory.c",
-    "src/core/client_config/lb_policy_registry.c",
-    "src/core/client_config/resolver.c",
-    "src/core/client_config/resolver_factory.c",
-    "src/core/client_config/resolver_registry.c",
-    "src/core/client_config/resolvers/dns_resolver.c",
-    "src/core/client_config/resolvers/sockaddr_resolver.c",
-    "src/core/client_config/subchannel.c",
-    "src/core/client_config/subchannel_factory.c",
-    "src/core/client_config/subchannel_index.c",
-    "src/core/client_config/uri_parser.c",
-    "src/core/compression/compression_algorithm.c",
-    "src/core/compression/message_compress.c",
-    "src/core/debug/trace.c",
-    "src/core/httpcli/format_request.c",
-    "src/core/httpcli/httpcli.c",
-    "src/core/httpcli/parser.c",
-    "src/core/iomgr/closure.c",
-    "src/core/iomgr/endpoint.c",
-    "src/core/iomgr/endpoint_pair_posix.c",
-    "src/core/iomgr/endpoint_pair_windows.c",
-    "src/core/iomgr/ev_poll_and_epoll_posix.c",
-    "src/core/iomgr/ev_posix.c",
-    "src/core/iomgr/exec_ctx.c",
-    "src/core/iomgr/executor.c",
-    "src/core/iomgr/iocp_windows.c",
-    "src/core/iomgr/iomgr.c",
-    "src/core/iomgr/iomgr_posix.c",
-    "src/core/iomgr/iomgr_windows.c",
-    "src/core/iomgr/pollset_set_windows.c",
-    "src/core/iomgr/pollset_windows.c",
-    "src/core/iomgr/resolve_address_posix.c",
-    "src/core/iomgr/resolve_address_windows.c",
-    "src/core/iomgr/sockaddr_utils.c",
-    "src/core/iomgr/socket_utils_common_posix.c",
-    "src/core/iomgr/socket_utils_linux.c",
-    "src/core/iomgr/socket_utils_posix.c",
-    "src/core/iomgr/socket_windows.c",
-    "src/core/iomgr/tcp_client_posix.c",
-    "src/core/iomgr/tcp_client_windows.c",
-    "src/core/iomgr/tcp_posix.c",
-    "src/core/iomgr/tcp_server_posix.c",
-    "src/core/iomgr/tcp_server_windows.c",
-    "src/core/iomgr/tcp_windows.c",
-    "src/core/iomgr/time_averaged_stats.c",
-    "src/core/iomgr/timer.c",
-    "src/core/iomgr/timer_heap.c",
-    "src/core/iomgr/udp_server.c",
-    "src/core/iomgr/wakeup_fd_eventfd.c",
-    "src/core/iomgr/wakeup_fd_nospecial.c",
-    "src/core/iomgr/wakeup_fd_pipe.c",
-    "src/core/iomgr/wakeup_fd_posix.c",
-    "src/core/iomgr/workqueue_posix.c",
-    "src/core/iomgr/workqueue_windows.c",
-    "src/core/json/json.c",
-    "src/core/json/json_reader.c",
-    "src/core/json/json_string.c",
-    "src/core/json/json_writer.c",
-    "src/core/proto/grpc/lb/v0/load_balancer.pb.c",
-    "src/core/surface/alarm.c",
-    "src/core/surface/api_trace.c",
-    "src/core/surface/byte_buffer.c",
-    "src/core/surface/byte_buffer_reader.c",
-    "src/core/surface/call.c",
-    "src/core/surface/call_details.c",
-    "src/core/surface/call_log_batch.c",
-    "src/core/surface/channel.c",
-    "src/core/surface/channel_connectivity.c",
-    "src/core/surface/channel_create.c",
-    "src/core/surface/channel_init.c",
-    "src/core/surface/channel_ping.c",
-    "src/core/surface/channel_stack_type.c",
-    "src/core/surface/completion_queue.c",
-    "src/core/surface/event_string.c",
-    "src/core/surface/init.c",
-    "src/core/surface/lame_client.c",
-    "src/core/surface/metadata_array.c",
-    "src/core/surface/server.c",
-    "src/core/surface/server_chttp2.c",
-    "src/core/surface/validate_metadata.c",
-    "src/core/surface/version.c",
-    "src/core/transport/byte_stream.c",
-    "src/core/transport/chttp2/alpn.c",
-    "src/core/transport/chttp2/bin_encoder.c",
-    "src/core/transport/chttp2/frame_data.c",
-    "src/core/transport/chttp2/frame_goaway.c",
-    "src/core/transport/chttp2/frame_ping.c",
-    "src/core/transport/chttp2/frame_rst_stream.c",
-    "src/core/transport/chttp2/frame_settings.c",
-    "src/core/transport/chttp2/frame_window_update.c",
-    "src/core/transport/chttp2/hpack_encoder.c",
-    "src/core/transport/chttp2/hpack_parser.c",
-    "src/core/transport/chttp2/hpack_table.c",
-    "src/core/transport/chttp2/huffsyms.c",
-    "src/core/transport/chttp2/incoming_metadata.c",
-    "src/core/transport/chttp2/parsing.c",
-    "src/core/transport/chttp2/status_conversion.c",
-    "src/core/transport/chttp2/stream_lists.c",
-    "src/core/transport/chttp2/stream_map.c",
-    "src/core/transport/chttp2/timeout_encoding.c",
-    "src/core/transport/chttp2/varint.c",
-    "src/core/transport/chttp2/writing.c",
-    "src/core/transport/chttp2_transport.c",
-    "src/core/transport/connectivity_state.c",
-    "src/core/transport/metadata.c",
-    "src/core/transport/metadata_batch.c",
-    "src/core/transport/static_metadata.c",
-    "src/core/transport/transport.c",
-    "src/core/transport/transport_op_string.c",
-    "src/core/httpcli/httpcli_security_connector.c",
-    "src/core/security/b64.c",
-    "src/core/security/client_auth_filter.c",
-    "src/core/security/credentials.c",
-    "src/core/security/credentials_metadata.c",
-    "src/core/security/credentials_posix.c",
-    "src/core/security/credentials_win32.c",
-    "src/core/security/google_default_credentials.c",
-    "src/core/security/handshake.c",
-    "src/core/security/json_token.c",
-    "src/core/security/jwt_verifier.c",
-    "src/core/security/secure_endpoint.c",
-    "src/core/security/security_connector.c",
-    "src/core/security/security_context.c",
-    "src/core/security/server_auth_filter.c",
-    "src/core/security/server_secure_chttp2.c",
-    "src/core/surface/init_secure.c",
-    "src/core/surface/secure_channel_create.c",
-    "src/core/tsi/fake_transport_security.c",
-    "src/core/tsi/ssl_transport_security.c",
-    "src/core/tsi/transport_security.c",
-    "src/core/census/context.c",
-    "src/core/census/initialize.c",
-    "src/core/census/mlog.c",
-    "src/core/census/operation.c",
-    "src/core/census/placeholders.c",
-    "src/core/census/tracing.c",
+    "src/core/lib/census/grpc_context.c",
+    "src/core/lib/census/grpc_filter.c",
+    "src/core/lib/census/grpc_plugin.c",
+    "src/core/lib/channel/channel_args.c",
+    "src/core/lib/channel/channel_stack.c",
+    "src/core/lib/channel/channel_stack_builder.c",
+    "src/core/lib/channel/client_channel.c",
+    "src/core/lib/channel/compress_filter.c",
+    "src/core/lib/channel/connected_channel.c",
+    "src/core/lib/channel/http_client_filter.c",
+    "src/core/lib/channel/http_server_filter.c",
+    "src/core/lib/channel/subchannel_call_holder.c",
+    "src/core/lib/client_config/client_config.c",
+    "src/core/lib/client_config/connector.c",
+    "src/core/lib/client_config/default_initial_connect_string.c",
+    "src/core/lib/client_config/initial_connect_string.c",
+    "src/core/lib/client_config/lb_policies/load_balancer_api.c",
+    "src/core/lib/client_config/lb_policies/pick_first.c",
+    "src/core/lib/client_config/lb_policies/round_robin.c",
+    "src/core/lib/client_config/lb_policy.c",
+    "src/core/lib/client_config/lb_policy_factory.c",
+    "src/core/lib/client_config/lb_policy_registry.c",
+    "src/core/lib/client_config/resolver.c",
+    "src/core/lib/client_config/resolver_factory.c",
+    "src/core/lib/client_config/resolver_registry.c",
+    "src/core/lib/client_config/resolvers/dns_resolver.c",
+    "src/core/lib/client_config/resolvers/sockaddr_resolver.c",
+    "src/core/lib/client_config/subchannel.c",
+    "src/core/lib/client_config/subchannel_factory.c",
+    "src/core/lib/client_config/subchannel_index.c",
+    "src/core/lib/client_config/uri_parser.c",
+    "src/core/lib/compression/compression_algorithm.c",
+    "src/core/lib/compression/message_compress.c",
+    "src/core/lib/debug/trace.c",
+    "src/core/lib/http/format_request.c",
+    "src/core/lib/http/httpcli.c",
+    "src/core/lib/http/parser.c",
+    "src/core/lib/iomgr/closure.c",
+    "src/core/lib/iomgr/endpoint.c",
+    "src/core/lib/iomgr/endpoint_pair_posix.c",
+    "src/core/lib/iomgr/endpoint_pair_windows.c",
+    "src/core/lib/iomgr/ev_poll_and_epoll_posix.c",
+    "src/core/lib/iomgr/ev_posix.c",
+    "src/core/lib/iomgr/exec_ctx.c",
+    "src/core/lib/iomgr/executor.c",
+    "src/core/lib/iomgr/iocp_windows.c",
+    "src/core/lib/iomgr/iomgr.c",
+    "src/core/lib/iomgr/iomgr_posix.c",
+    "src/core/lib/iomgr/iomgr_windows.c",
+    "src/core/lib/iomgr/pollset_set_windows.c",
+    "src/core/lib/iomgr/pollset_windows.c",
+    "src/core/lib/iomgr/resolve_address_posix.c",
+    "src/core/lib/iomgr/resolve_address_windows.c",
+    "src/core/lib/iomgr/sockaddr_utils.c",
+    "src/core/lib/iomgr/socket_utils_common_posix.c",
+    "src/core/lib/iomgr/socket_utils_linux.c",
+    "src/core/lib/iomgr/socket_utils_posix.c",
+    "src/core/lib/iomgr/socket_windows.c",
+    "src/core/lib/iomgr/tcp_client_posix.c",
+    "src/core/lib/iomgr/tcp_client_windows.c",
+    "src/core/lib/iomgr/tcp_posix.c",
+    "src/core/lib/iomgr/tcp_server_posix.c",
+    "src/core/lib/iomgr/tcp_server_windows.c",
+    "src/core/lib/iomgr/tcp_windows.c",
+    "src/core/lib/iomgr/time_averaged_stats.c",
+    "src/core/lib/iomgr/timer.c",
+    "src/core/lib/iomgr/timer_heap.c",
+    "src/core/lib/iomgr/udp_server.c",
+    "src/core/lib/iomgr/unix_sockets_posix.c",
+    "src/core/lib/iomgr/unix_sockets_posix_noop.c",
+    "src/core/lib/iomgr/wakeup_fd_eventfd.c",
+    "src/core/lib/iomgr/wakeup_fd_nospecial.c",
+    "src/core/lib/iomgr/wakeup_fd_pipe.c",
+    "src/core/lib/iomgr/wakeup_fd_posix.c",
+    "src/core/lib/iomgr/workqueue_posix.c",
+    "src/core/lib/iomgr/workqueue_windows.c",
+    "src/core/lib/json/json.c",
+    "src/core/lib/json/json_reader.c",
+    "src/core/lib/json/json_string.c",
+    "src/core/lib/json/json_writer.c",
+    "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c",
+    "src/core/lib/surface/alarm.c",
+    "src/core/lib/surface/api_trace.c",
+    "src/core/lib/surface/byte_buffer.c",
+    "src/core/lib/surface/byte_buffer_reader.c",
+    "src/core/lib/surface/call.c",
+    "src/core/lib/surface/call_details.c",
+    "src/core/lib/surface/call_log_batch.c",
+    "src/core/lib/surface/channel.c",
+    "src/core/lib/surface/channel_connectivity.c",
+    "src/core/lib/surface/channel_create.c",
+    "src/core/lib/surface/channel_init.c",
+    "src/core/lib/surface/channel_ping.c",
+    "src/core/lib/surface/channel_stack_type.c",
+    "src/core/lib/surface/completion_queue.c",
+    "src/core/lib/surface/event_string.c",
+    "src/core/lib/surface/init.c",
+    "src/core/lib/surface/lame_client.c",
+    "src/core/lib/surface/metadata_array.c",
+    "src/core/lib/surface/server.c",
+    "src/core/lib/surface/server_chttp2.c",
+    "src/core/lib/surface/validate_metadata.c",
+    "src/core/lib/surface/version.c",
+    "src/core/lib/transport/byte_stream.c",
+    "src/core/lib/transport/chttp2/alpn.c",
+    "src/core/lib/transport/chttp2/bin_encoder.c",
+    "src/core/lib/transport/chttp2/frame_data.c",
+    "src/core/lib/transport/chttp2/frame_goaway.c",
+    "src/core/lib/transport/chttp2/frame_ping.c",
+    "src/core/lib/transport/chttp2/frame_rst_stream.c",
+    "src/core/lib/transport/chttp2/frame_settings.c",
+    "src/core/lib/transport/chttp2/frame_window_update.c",
+    "src/core/lib/transport/chttp2/hpack_encoder.c",
+    "src/core/lib/transport/chttp2/hpack_parser.c",
+    "src/core/lib/transport/chttp2/hpack_table.c",
+    "src/core/lib/transport/chttp2/huffsyms.c",
+    "src/core/lib/transport/chttp2/incoming_metadata.c",
+    "src/core/lib/transport/chttp2/parsing.c",
+    "src/core/lib/transport/chttp2/status_conversion.c",
+    "src/core/lib/transport/chttp2/stream_lists.c",
+    "src/core/lib/transport/chttp2/stream_map.c",
+    "src/core/lib/transport/chttp2/timeout_encoding.c",
+    "src/core/lib/transport/chttp2/varint.c",
+    "src/core/lib/transport/chttp2/writing.c",
+    "src/core/lib/transport/chttp2_transport.c",
+    "src/core/lib/transport/connectivity_state.c",
+    "src/core/lib/transport/metadata.c",
+    "src/core/lib/transport/metadata_batch.c",
+    "src/core/lib/transport/static_metadata.c",
+    "src/core/lib/transport/transport.c",
+    "src/core/lib/transport/transport_op_string.c",
+    "src/core/lib/http/httpcli_security_connector.c",
+    "src/core/lib/security/b64.c",
+    "src/core/lib/security/client_auth_filter.c",
+    "src/core/lib/security/credentials.c",
+    "src/core/lib/security/credentials_metadata.c",
+    "src/core/lib/security/credentials_posix.c",
+    "src/core/lib/security/credentials_win32.c",
+    "src/core/lib/security/google_default_credentials.c",
+    "src/core/lib/security/handshake.c",
+    "src/core/lib/security/json_token.c",
+    "src/core/lib/security/jwt_verifier.c",
+    "src/core/lib/security/secure_endpoint.c",
+    "src/core/lib/security/security_connector.c",
+    "src/core/lib/security/security_context.c",
+    "src/core/lib/security/server_auth_filter.c",
+    "src/core/lib/security/server_secure_chttp2.c",
+    "src/core/lib/surface/init_secure.c",
+    "src/core/lib/surface/secure_channel_create.c",
+    "src/core/lib/tsi/fake_transport_security.c",
+    "src/core/lib/tsi/ssl_transport_security.c",
+    "src/core/lib/tsi/transport_security.c",
+    "src/core/lib/census/context.c",
+    "src/core/lib/census/initialize.c",
+    "src/core/lib/census/mlog.c",
+    "src/core/lib/census/operation.c",
+    "src/core/lib/census/placeholders.c",
+    "src/core/lib/census/tracing.c",
     "third_party/nanopb/pb_common.c",
     "third_party/nanopb/pb_decode.c",
     "third_party/nanopb/pb_encode.c",
@@ -1527,142 +1533,144 @@
     "include/grpc/impl/codegen/propagation_bits.h",
     "include/grpc/impl/codegen/status.h",
     "include/grpc/census.h",
-    "src/core/census/grpc_filter.h",
-    "src/core/census/grpc_plugin.h",
-    "src/core/channel/channel_args.h",
-    "src/core/channel/channel_stack.h",
-    "src/core/channel/channel_stack_builder.h",
-    "src/core/channel/client_channel.h",
-    "src/core/channel/client_uchannel.h",
-    "src/core/channel/compress_filter.h",
-    "src/core/channel/connected_channel.h",
-    "src/core/channel/context.h",
-    "src/core/channel/http_client_filter.h",
-    "src/core/channel/http_server_filter.h",
-    "src/core/channel/subchannel_call_holder.h",
-    "src/core/client_config/client_config.h",
-    "src/core/client_config/connector.h",
-    "src/core/client_config/initial_connect_string.h",
-    "src/core/client_config/lb_policies/load_balancer_api.h",
-    "src/core/client_config/lb_policies/pick_first.h",
-    "src/core/client_config/lb_policies/round_robin.h",
-    "src/core/client_config/lb_policy.h",
-    "src/core/client_config/lb_policy_factory.h",
-    "src/core/client_config/lb_policy_registry.h",
-    "src/core/client_config/resolver.h",
-    "src/core/client_config/resolver_factory.h",
-    "src/core/client_config/resolver_registry.h",
-    "src/core/client_config/resolvers/dns_resolver.h",
-    "src/core/client_config/resolvers/sockaddr_resolver.h",
-    "src/core/client_config/subchannel.h",
-    "src/core/client_config/subchannel_factory.h",
-    "src/core/client_config/subchannel_index.h",
-    "src/core/client_config/uri_parser.h",
-    "src/core/compression/algorithm_metadata.h",
-    "src/core/compression/message_compress.h",
-    "src/core/debug/trace.h",
-    "src/core/httpcli/format_request.h",
-    "src/core/httpcli/httpcli.h",
-    "src/core/httpcli/parser.h",
-    "src/core/iomgr/closure.h",
-    "src/core/iomgr/endpoint.h",
-    "src/core/iomgr/endpoint_pair.h",
-    "src/core/iomgr/ev_poll_and_epoll_posix.h",
-    "src/core/iomgr/ev_posix.h",
-    "src/core/iomgr/exec_ctx.h",
-    "src/core/iomgr/executor.h",
-    "src/core/iomgr/iocp_windows.h",
-    "src/core/iomgr/iomgr.h",
-    "src/core/iomgr/iomgr_internal.h",
-    "src/core/iomgr/iomgr_posix.h",
-    "src/core/iomgr/pollset.h",
-    "src/core/iomgr/pollset_set.h",
-    "src/core/iomgr/pollset_set_windows.h",
-    "src/core/iomgr/pollset_windows.h",
-    "src/core/iomgr/resolve_address.h",
-    "src/core/iomgr/sockaddr.h",
-    "src/core/iomgr/sockaddr_posix.h",
-    "src/core/iomgr/sockaddr_utils.h",
-    "src/core/iomgr/sockaddr_win32.h",
-    "src/core/iomgr/socket_utils_posix.h",
-    "src/core/iomgr/socket_windows.h",
-    "src/core/iomgr/tcp_client.h",
-    "src/core/iomgr/tcp_posix.h",
-    "src/core/iomgr/tcp_server.h",
-    "src/core/iomgr/tcp_windows.h",
-    "src/core/iomgr/time_averaged_stats.h",
-    "src/core/iomgr/timer.h",
-    "src/core/iomgr/timer_heap.h",
-    "src/core/iomgr/udp_server.h",
-    "src/core/iomgr/wakeup_fd_pipe.h",
-    "src/core/iomgr/wakeup_fd_posix.h",
-    "src/core/iomgr/workqueue.h",
-    "src/core/iomgr/workqueue_posix.h",
-    "src/core/iomgr/workqueue_windows.h",
-    "src/core/json/json.h",
-    "src/core/json/json_common.h",
-    "src/core/json/json_reader.h",
-    "src/core/json/json_writer.h",
-    "src/core/proto/grpc/lb/v0/load_balancer.pb.h",
-    "src/core/statistics/census_interface.h",
-    "src/core/statistics/census_rpc_stats.h",
-    "src/core/surface/api_trace.h",
-    "src/core/surface/call.h",
-    "src/core/surface/call_test_only.h",
-    "src/core/surface/channel.h",
-    "src/core/surface/channel_init.h",
-    "src/core/surface/channel_stack_type.h",
-    "src/core/surface/completion_queue.h",
-    "src/core/surface/event_string.h",
-    "src/core/surface/init.h",
-    "src/core/surface/lame_client.h",
-    "src/core/surface/server.h",
-    "src/core/surface/surface_trace.h",
-    "src/core/transport/byte_stream.h",
-    "src/core/transport/chttp2/alpn.h",
-    "src/core/transport/chttp2/bin_encoder.h",
-    "src/core/transport/chttp2/frame.h",
-    "src/core/transport/chttp2/frame_data.h",
-    "src/core/transport/chttp2/frame_goaway.h",
-    "src/core/transport/chttp2/frame_ping.h",
-    "src/core/transport/chttp2/frame_rst_stream.h",
-    "src/core/transport/chttp2/frame_settings.h",
-    "src/core/transport/chttp2/frame_window_update.h",
-    "src/core/transport/chttp2/hpack_encoder.h",
-    "src/core/transport/chttp2/hpack_parser.h",
-    "src/core/transport/chttp2/hpack_table.h",
-    "src/core/transport/chttp2/http2_errors.h",
-    "src/core/transport/chttp2/huffsyms.h",
-    "src/core/transport/chttp2/incoming_metadata.h",
-    "src/core/transport/chttp2/internal.h",
-    "src/core/transport/chttp2/status_conversion.h",
-    "src/core/transport/chttp2/stream_map.h",
-    "src/core/transport/chttp2/timeout_encoding.h",
-    "src/core/transport/chttp2/varint.h",
-    "src/core/transport/chttp2_transport.h",
-    "src/core/transport/connectivity_state.h",
-    "src/core/transport/metadata.h",
-    "src/core/transport/metadata_batch.h",
-    "src/core/transport/static_metadata.h",
-    "src/core/transport/transport.h",
-    "src/core/transport/transport_impl.h",
-    "src/core/security/auth_filters.h",
-    "src/core/security/b64.h",
-    "src/core/security/credentials.h",
-    "src/core/security/handshake.h",
-    "src/core/security/json_token.h",
-    "src/core/security/jwt_verifier.h",
-    "src/core/security/secure_endpoint.h",
-    "src/core/security/security_connector.h",
-    "src/core/security/security_context.h",
-    "src/core/tsi/fake_transport_security.h",
-    "src/core/tsi/ssl_transport_security.h",
-    "src/core/tsi/ssl_types.h",
-    "src/core/tsi/transport_security.h",
-    "src/core/tsi/transport_security_interface.h",
-    "src/core/census/aggregation.h",
-    "src/core/census/mlog.h",
-    "src/core/census/rpc_metric_id.h",
+    "src/core/lib/census/grpc_filter.h",
+    "src/core/lib/census/grpc_plugin.h",
+    "src/core/lib/channel/channel_args.h",
+    "src/core/lib/channel/channel_stack.h",
+    "src/core/lib/channel/channel_stack_builder.h",
+    "src/core/lib/channel/client_channel.h",
+    "src/core/lib/channel/compress_filter.h",
+    "src/core/lib/channel/connected_channel.h",
+    "src/core/lib/channel/context.h",
+    "src/core/lib/channel/http_client_filter.h",
+    "src/core/lib/channel/http_server_filter.h",
+    "src/core/lib/channel/subchannel_call_holder.h",
+    "src/core/lib/client_config/client_config.h",
+    "src/core/lib/client_config/connector.h",
+    "src/core/lib/client_config/initial_connect_string.h",
+    "src/core/lib/client_config/lb_policies/load_balancer_api.h",
+    "src/core/lib/client_config/lb_policies/pick_first.h",
+    "src/core/lib/client_config/lb_policies/round_robin.h",
+    "src/core/lib/client_config/lb_policy.h",
+    "src/core/lib/client_config/lb_policy_factory.h",
+    "src/core/lib/client_config/lb_policy_registry.h",
+    "src/core/lib/client_config/resolver.h",
+    "src/core/lib/client_config/resolver_factory.h",
+    "src/core/lib/client_config/resolver_registry.h",
+    "src/core/lib/client_config/resolvers/dns_resolver.h",
+    "src/core/lib/client_config/resolvers/sockaddr_resolver.h",
+    "src/core/lib/client_config/subchannel.h",
+    "src/core/lib/client_config/subchannel_factory.h",
+    "src/core/lib/client_config/subchannel_index.h",
+    "src/core/lib/client_config/uri_parser.h",
+    "src/core/lib/compression/algorithm_metadata.h",
+    "src/core/lib/compression/message_compress.h",
+    "src/core/lib/debug/trace.h",
+    "src/core/lib/http/format_request.h",
+    "src/core/lib/http/httpcli.h",
+    "src/core/lib/http/parser.h",
+    "src/core/lib/iomgr/closure.h",
+    "src/core/lib/iomgr/endpoint.h",
+    "src/core/lib/iomgr/endpoint_pair.h",
+    "src/core/lib/iomgr/ev_poll_and_epoll_posix.h",
+    "src/core/lib/iomgr/ev_posix.h",
+    "src/core/lib/iomgr/exec_ctx.h",
+    "src/core/lib/iomgr/executor.h",
+    "src/core/lib/iomgr/iocp_windows.h",
+    "src/core/lib/iomgr/iomgr.h",
+    "src/core/lib/iomgr/iomgr_internal.h",
+    "src/core/lib/iomgr/iomgr_posix.h",
+    "src/core/lib/iomgr/pollset.h",
+    "src/core/lib/iomgr/pollset_posix.h",
+    "src/core/lib/iomgr/pollset_set.h",
+    "src/core/lib/iomgr/pollset_set_posix.h",
+    "src/core/lib/iomgr/pollset_set_windows.h",
+    "src/core/lib/iomgr/pollset_windows.h",
+    "src/core/lib/iomgr/resolve_address.h",
+    "src/core/lib/iomgr/sockaddr.h",
+    "src/core/lib/iomgr/sockaddr_posix.h",
+    "src/core/lib/iomgr/sockaddr_utils.h",
+    "src/core/lib/iomgr/sockaddr_win32.h",
+    "src/core/lib/iomgr/socket_utils_posix.h",
+    "src/core/lib/iomgr/socket_windows.h",
+    "src/core/lib/iomgr/tcp_client.h",
+    "src/core/lib/iomgr/tcp_posix.h",
+    "src/core/lib/iomgr/tcp_server.h",
+    "src/core/lib/iomgr/tcp_windows.h",
+    "src/core/lib/iomgr/time_averaged_stats.h",
+    "src/core/lib/iomgr/timer.h",
+    "src/core/lib/iomgr/timer_heap.h",
+    "src/core/lib/iomgr/udp_server.h",
+    "src/core/lib/iomgr/unix_sockets_posix.h",
+    "src/core/lib/iomgr/wakeup_fd_pipe.h",
+    "src/core/lib/iomgr/wakeup_fd_posix.h",
+    "src/core/lib/iomgr/workqueue.h",
+    "src/core/lib/iomgr/workqueue_posix.h",
+    "src/core/lib/iomgr/workqueue_windows.h",
+    "src/core/lib/json/json.h",
+    "src/core/lib/json/json_common.h",
+    "src/core/lib/json/json_reader.h",
+    "src/core/lib/json/json_writer.h",
+    "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h",
+    "src/core/lib/statistics/census_interface.h",
+    "src/core/lib/statistics/census_rpc_stats.h",
+    "src/core/lib/surface/api_trace.h",
+    "src/core/lib/surface/call.h",
+    "src/core/lib/surface/call_test_only.h",
+    "src/core/lib/surface/channel.h",
+    "src/core/lib/surface/channel_init.h",
+    "src/core/lib/surface/channel_stack_type.h",
+    "src/core/lib/surface/completion_queue.h",
+    "src/core/lib/surface/event_string.h",
+    "src/core/lib/surface/init.h",
+    "src/core/lib/surface/lame_client.h",
+    "src/core/lib/surface/server.h",
+    "src/core/lib/surface/surface_trace.h",
+    "src/core/lib/transport/byte_stream.h",
+    "src/core/lib/transport/chttp2/alpn.h",
+    "src/core/lib/transport/chttp2/bin_encoder.h",
+    "src/core/lib/transport/chttp2/frame.h",
+    "src/core/lib/transport/chttp2/frame_data.h",
+    "src/core/lib/transport/chttp2/frame_goaway.h",
+    "src/core/lib/transport/chttp2/frame_ping.h",
+    "src/core/lib/transport/chttp2/frame_rst_stream.h",
+    "src/core/lib/transport/chttp2/frame_settings.h",
+    "src/core/lib/transport/chttp2/frame_window_update.h",
+    "src/core/lib/transport/chttp2/hpack_encoder.h",
+    "src/core/lib/transport/chttp2/hpack_parser.h",
+    "src/core/lib/transport/chttp2/hpack_table.h",
+    "src/core/lib/transport/chttp2/http2_errors.h",
+    "src/core/lib/transport/chttp2/huffsyms.h",
+    "src/core/lib/transport/chttp2/incoming_metadata.h",
+    "src/core/lib/transport/chttp2/internal.h",
+    "src/core/lib/transport/chttp2/status_conversion.h",
+    "src/core/lib/transport/chttp2/stream_map.h",
+    "src/core/lib/transport/chttp2/timeout_encoding.h",
+    "src/core/lib/transport/chttp2/varint.h",
+    "src/core/lib/transport/chttp2_transport.h",
+    "src/core/lib/transport/connectivity_state.h",
+    "src/core/lib/transport/metadata.h",
+    "src/core/lib/transport/metadata_batch.h",
+    "src/core/lib/transport/static_metadata.h",
+    "src/core/lib/transport/transport.h",
+    "src/core/lib/transport/transport_impl.h",
+    "src/core/lib/security/auth_filters.h",
+    "src/core/lib/security/b64.h",
+    "src/core/lib/security/credentials.h",
+    "src/core/lib/security/handshake.h",
+    "src/core/lib/security/json_token.h",
+    "src/core/lib/security/jwt_verifier.h",
+    "src/core/lib/security/secure_endpoint.h",
+    "src/core/lib/security/security_connector.h",
+    "src/core/lib/security/security_context.h",
+    "src/core/lib/tsi/fake_transport_security.h",
+    "src/core/lib/tsi/ssl_transport_security.h",
+    "src/core/lib/tsi/ssl_types.h",
+    "src/core/lib/tsi/transport_security.h",
+    "src/core/lib/tsi/transport_security_interface.h",
+    "src/core/lib/census/aggregation.h",
+    "src/core/lib/census/mlog.h",
+    "src/core/lib/census/rpc_metric_id.h",
     "third_party/nanopb/pb.h",
     "third_party/nanopb/pb_common.h",
     "third_party/nanopb/pb_decode.h",
diff --git a/MANIFEST.md b/MANIFEST.md
index b523f8f..77e0140 100644
--- a/MANIFEST.md
+++ b/MANIFEST.md
@@ -1,14 +1,28 @@
 # Top-level Items by language
 
+## Bazel
+* [grpc.bzl](grpc.bzl)
+
 ## Node
 * [binding.gyp](binding.gyp)
+* [package.json](package.json)
 
 ## Objective-C
 * [gRPC.podspec](gRPC.podspec)
 
+## PHP
+* [composer.json](composer.json)
+* [config.m4](config.m4)
+* [package.xml](package.xml)
+
 ## Python
 * [requirements.txt](requirements.txt)
 * [setup.cfg](setup.cfg)
 * [setup.py](setup.py)
 * [tox.ini](tox.ini)
 * [PYTHON-MANIFEST.in](PYTHON-MANIFEST.in)
+
+## Ruby
+* [Gemfile](Gemfile)
+* [grpc.gemspec](grpc.gemspec)
+* [Rakefile](Rakefile)
diff --git a/Makefile b/Makefile
index 1385b87..68e1e48 100644
--- a/Makefile
+++ b/Makefile
@@ -188,8 +188,8 @@
 CXX_tsan = clang++
 LD_tsan = clang
 LDXX_tsan = clang++
-CPPFLAGS_tsan = -O0 -fsanitize=thread -fno-omit-frame-pointer -Wno-unused-command-line-argument -fPIE -pie -DGPR_NO_DIRECT_SYSCALLS
-LDFLAGS_tsan = -fsanitize=thread -fPIE -pie $(if $(JENKINS_BUILD),-Wl$(comma)-Ttext-segment=0x7e0000000000,)
+CPPFLAGS_tsan = -O0 -fsanitize=thread -fno-omit-frame-pointer -Wno-unused-command-line-argument -DGPR_NO_DIRECT_SYSCALLS
+LDFLAGS_tsan = -fsanitize=thread
 DEFINES_tsan += GRPC_TEST_SLOWDOWN_BUILD_FACTOR=5
 
 VALID_CONFIG_stapprof = 1
@@ -225,8 +225,8 @@
 CXX_etsan = clang++
 LD_etsan = clang
 LDXX_etsan = clang++
-CPPFLAGS_etsan = -O0 -fsanitize=thread -fno-omit-frame-pointer -Wno-unused-command-line-argument -fPIE -pie -DGPR_NO_DIRECT_SYSCALLS
-LDFLAGS_etsan = -fsanitize=thread -fPIE -pie $(if $(JENKINS_BUILD),-Wl$(comma)-Ttext-segment=0x7e0000000000,)
+CPPFLAGS_etsan = -O0 -fsanitize=thread -fno-omit-frame-pointer -Wno-unused-command-line-argument -DGPR_NO_DIRECT_SYSCALLS
+LDFLAGS_etsan = -fsanitize=thread
 DEFINES_etsan = _DEBUG DEBUG GRPC_EXECUTION_CONTEXT_SANITIZER
 DEFINES_etsan += GRPC_TEST_SLOWDOWN_BUILD_FACTOR=5
 
@@ -927,8 +927,8 @@
 grpc_verify_jwt: $(BINDIR)/$(CONFIG)/grpc_verify_jwt
 hpack_parser_test: $(BINDIR)/$(CONFIG)/hpack_parser_test
 hpack_table_test: $(BINDIR)/$(CONFIG)/hpack_table_test
+http_parser_test: $(BINDIR)/$(CONFIG)/http_parser_test
 httpcli_format_request_test: $(BINDIR)/$(CONFIG)/httpcli_format_request_test
-httpcli_parser_test: $(BINDIR)/$(CONFIG)/httpcli_parser_test
 httpcli_test: $(BINDIR)/$(CONFIG)/httpcli_test
 httpscli_test: $(BINDIR)/$(CONFIG)/httpscli_test
 init_test: $(BINDIR)/$(CONFIG)/init_test
@@ -1020,6 +1020,7 @@
 zookeeper_test: $(BINDIR)/$(CONFIG)/zookeeper_test
 public_headers_must_be_c89: $(BINDIR)/$(CONFIG)/public_headers_must_be_c89
 boringssl_aes_test: $(BINDIR)/$(CONFIG)/boringssl_aes_test
+boringssl_asn1_test: $(BINDIR)/$(CONFIG)/boringssl_asn1_test
 boringssl_base64_test: $(BINDIR)/$(CONFIG)/boringssl_base64_test
 boringssl_bio_test: $(BINDIR)/$(CONFIG)/boringssl_bio_test
 boringssl_bn_test: $(BINDIR)/$(CONFIG)/boringssl_bn_test
@@ -1080,7 +1081,6 @@
 h2_sockpair_1byte_test: $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_test
 h2_ssl_test: $(BINDIR)/$(CONFIG)/h2_ssl_test
 h2_ssl_proxy_test: $(BINDIR)/$(CONFIG)/h2_ssl_proxy_test
-h2_uchannel_test: $(BINDIR)/$(CONFIG)/h2_uchannel_test
 h2_uds_test: $(BINDIR)/$(CONFIG)/h2_uds_test
 h2_census_nosec_test: $(BINDIR)/$(CONFIG)/h2_census_nosec_test
 h2_compress_nosec_test: $(BINDIR)/$(CONFIG)/h2_compress_nosec_test
@@ -1091,7 +1091,6 @@
 h2_sockpair_nosec_test: $(BINDIR)/$(CONFIG)/h2_sockpair_nosec_test
 h2_sockpair+trace_nosec_test: $(BINDIR)/$(CONFIG)/h2_sockpair+trace_nosec_test
 h2_sockpair_1byte_nosec_test: $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_nosec_test
-h2_uchannel_nosec_test: $(BINDIR)/$(CONFIG)/h2_uchannel_nosec_test
 h2_uds_nosec_test: $(BINDIR)/$(CONFIG)/h2_uds_nosec_test
 
 run_dep_checks:
@@ -1123,13 +1122,13 @@
 static_c: pc_c pc_c_unsecure cache.mk pc_c_zookeeper $(LIBDIR)/$(CONFIG)/libgpr.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a static_zookeeper_libs
 
 
-static_cxx: pc_cxx pc_cxx_unsecure cache.mk  $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc++_unsecure.a
+static_cxx: pc_cxx pc_cxx_unsecure cache.mk  $(LIBDIR)/$(CONFIG)/libgrpc++.a $(LIBDIR)/$(CONFIG)/libgrpc++_codegen_lib.a $(LIBDIR)/$(CONFIG)/libgrpc++_unsecure.a
 
 shared: shared_c shared_cxx
 
 shared_c: pc_c pc_c_unsecure cache.mk pc_c_zookeeper $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)gpr$(SHARED_VERSION).$(SHARED_EXT) $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)grpc$(SHARED_VERSION).$(SHARED_EXT) $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)grpc_unsecure$(SHARED_VERSION).$(SHARED_EXT) shared_zookeeper_libs
 
-shared_cxx: pc_cxx pc_cxx_unsecure cache.mk $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)grpc++$(SHARED_VERSION).$(SHARED_EXT) $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)grpc++_unsecure$(SHARED_VERSION).$(SHARED_EXT)
+shared_cxx: pc_cxx pc_cxx_unsecure cache.mk $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)grpc++$(SHARED_VERSION).$(SHARED_EXT) $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)grpc++_codegen_lib$(SHARED_VERSION).$(SHARED_EXT) $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)grpc++_unsecure$(SHARED_VERSION).$(SHARED_EXT)
 
 shared_csharp: shared_c  $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)grpc_csharp_ext$(SHARED_VERSION).$(SHARED_EXT)
 ifeq ($(HAS_ZOOKEEPER),true)
@@ -1164,7 +1163,7 @@
 
 pc_cxx_unsecure: $(LIBDIR)/$(CONFIG)/pkgconfig/grpc++_unsecure.pc
 
-privatelibs_cxx:  $(LIBDIR)/$(CONFIG)/libgrpc++_test_config.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libinterop_client_helper.a $(LIBDIR)/$(CONFIG)/libinterop_client_main.a $(LIBDIR)/$(CONFIG)/libinterop_server_helper.a $(LIBDIR)/$(CONFIG)/libinterop_server_main.a $(LIBDIR)/$(CONFIG)/libqps.a $(LIBDIR)/$(CONFIG)/libboringssl_test_util.a $(LIBDIR)/$(CONFIG)/libboringssl_aes_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_base64_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_bio_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_bn_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_bytestring_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_aead_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_cipher_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_cmac_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_ed25519_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_x25519_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_dh_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_digest_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_ec_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_ecdsa_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_err_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_evp_extra_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_evp_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_pbkdf_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_hmac_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_pkcs12_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_pkcs8_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_poly1305_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_rsa_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_ssl_test_lib.a
+privatelibs_cxx:  $(LIBDIR)/$(CONFIG)/libgrpc++_test_config.a $(LIBDIR)/$(CONFIG)/libgrpc++_test_util.a $(LIBDIR)/$(CONFIG)/libinterop_client_helper.a $(LIBDIR)/$(CONFIG)/libinterop_client_main.a $(LIBDIR)/$(CONFIG)/libinterop_server_helper.a $(LIBDIR)/$(CONFIG)/libinterop_server_main.a $(LIBDIR)/$(CONFIG)/libqps.a $(LIBDIR)/$(CONFIG)/libboringssl_test_util.a $(LIBDIR)/$(CONFIG)/libboringssl_aes_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_asn1_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_base64_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_bio_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_bn_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_bytestring_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_aead_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_cipher_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_cmac_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_ed25519_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_x25519_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_dh_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_digest_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_ec_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_ecdsa_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_err_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_evp_extra_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_evp_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_pbkdf_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_hmac_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_pkcs12_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_pkcs8_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_poly1305_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_rsa_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_ssl_test_lib.a
 
 ifeq ($(HAS_ZOOKEEPER),true)
 privatelibs_zookeeper: 
@@ -1230,8 +1229,8 @@
   $(BINDIR)/$(CONFIG)/grpc_security_connector_test \
   $(BINDIR)/$(CONFIG)/hpack_parser_test \
   $(BINDIR)/$(CONFIG)/hpack_table_test \
+  $(BINDIR)/$(CONFIG)/http_parser_test \
   $(BINDIR)/$(CONFIG)/httpcli_format_request_test \
-  $(BINDIR)/$(CONFIG)/httpcli_parser_test \
   $(BINDIR)/$(CONFIG)/httpcli_test \
   $(BINDIR)/$(CONFIG)/httpscli_test \
   $(BINDIR)/$(CONFIG)/init_test \
@@ -1296,7 +1295,6 @@
   $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_test \
   $(BINDIR)/$(CONFIG)/h2_ssl_test \
   $(BINDIR)/$(CONFIG)/h2_ssl_proxy_test \
-  $(BINDIR)/$(CONFIG)/h2_uchannel_test \
   $(BINDIR)/$(CONFIG)/h2_uds_test \
   $(BINDIR)/$(CONFIG)/h2_census_nosec_test \
   $(BINDIR)/$(CONFIG)/h2_compress_nosec_test \
@@ -1307,7 +1305,6 @@
   $(BINDIR)/$(CONFIG)/h2_sockpair_nosec_test \
   $(BINDIR)/$(CONFIG)/h2_sockpair+trace_nosec_test \
   $(BINDIR)/$(CONFIG)/h2_sockpair_1byte_nosec_test \
-  $(BINDIR)/$(CONFIG)/h2_uchannel_nosec_test \
   $(BINDIR)/$(CONFIG)/h2_uds_nosec_test \
 
 
@@ -1355,6 +1352,7 @@
   $(BINDIR)/$(CONFIG)/sync_unary_ping_pong_test \
   $(BINDIR)/$(CONFIG)/thread_stress_test \
   $(BINDIR)/$(CONFIG)/boringssl_aes_test \
+  $(BINDIR)/$(CONFIG)/boringssl_asn1_test \
   $(BINDIR)/$(CONFIG)/boringssl_base64_test \
   $(BINDIR)/$(CONFIG)/boringssl_bio_test \
   $(BINDIR)/$(CONFIG)/boringssl_bn_test \
@@ -1510,10 +1508,10 @@
 	$(Q) $(BINDIR)/$(CONFIG)/hpack_parser_test || ( echo test hpack_parser_test failed ; exit 1 )
 	$(E) "[RUN]     Testing hpack_table_test"
 	$(Q) $(BINDIR)/$(CONFIG)/hpack_table_test || ( echo test hpack_table_test failed ; exit 1 )
+	$(E) "[RUN]     Testing http_parser_test"
+	$(Q) $(BINDIR)/$(CONFIG)/http_parser_test || ( echo test http_parser_test failed ; exit 1 )
 	$(E) "[RUN]     Testing httpcli_format_request_test"
 	$(Q) $(BINDIR)/$(CONFIG)/httpcli_format_request_test || ( echo test httpcli_format_request_test failed ; exit 1 )
-	$(E) "[RUN]     Testing httpcli_parser_test"
-	$(Q) $(BINDIR)/$(CONFIG)/httpcli_parser_test || ( echo test httpcli_parser_test failed ; exit 1 )
 	$(E) "[RUN]     Testing httpcli_test"
 	$(Q) $(BINDIR)/$(CONFIG)/httpcli_test || ( echo test httpcli_test failed ; exit 1 )
 	$(E) "[RUN]     Testing httpscli_test"
@@ -1532,8 +1530,6 @@
 	$(Q) $(BINDIR)/$(CONFIG)/lame_client_test || ( echo test lame_client_test failed ; exit 1 )
 	$(E) "[RUN]     Testing message_compress_test"
 	$(Q) $(BINDIR)/$(CONFIG)/message_compress_test || ( echo test message_compress_test failed ; exit 1 )
-	$(E) "[RUN]     Testing mlog_test"
-	$(Q) $(BINDIR)/$(CONFIG)/mlog_test || ( echo test mlog_test failed ; exit 1 )
 	$(E) "[RUN]     Testing multiple_server_queues_test"
 	$(Q) $(BINDIR)/$(CONFIG)/multiple_server_queues_test || ( echo test multiple_server_queues_test failed ; exit 1 )
 	$(E) "[RUN]     Testing murmur_hash_test"
@@ -1613,6 +1609,8 @@
 flaky_test_c: buildtests_c
 	$(E) "[RUN]     Testing lb_policies_test"
 	$(Q) $(BINDIR)/$(CONFIG)/lb_policies_test || ( echo test lb_policies_test failed ; exit 1 )
+	$(E) "[RUN]     Testing mlog_test"
+	$(Q) $(BINDIR)/$(CONFIG)/mlog_test || ( echo test mlog_test failed ; exit 1 )
 
 
 test_cxx: test_zookeeper buildtests_cxx
@@ -1742,6 +1740,8 @@
 ifeq ($(CONFIG),opt)
 	$(E) "[STRIP]   Stripping libgrpc++.a"
 	$(Q) $(STRIP) $(LIBDIR)/$(CONFIG)/libgrpc++.a
+	$(E) "[STRIP]   Stripping libgrpc++_codegen_lib.a"
+	$(Q) $(STRIP) $(LIBDIR)/$(CONFIG)/libgrpc++_codegen_lib.a
 	$(E) "[STRIP]   Stripping libgrpc++_unsecure.a"
 	$(Q) $(STRIP) $(LIBDIR)/$(CONFIG)/libgrpc++_unsecure.a
 endif
@@ -1764,6 +1764,8 @@
 ifeq ($(CONFIG),opt)
 	$(E) "[STRIP]   Stripping $(SHARED_PREFIX)grpc++$(SHARED_VERSION).$(SHARED_EXT)"
 	$(Q) $(STRIP) $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)grpc++$(SHARED_VERSION).$(SHARED_EXT)
+	$(E) "[STRIP]   Stripping $(SHARED_PREFIX)grpc++_codegen_lib$(SHARED_VERSION).$(SHARED_EXT)"
+	$(Q) $(STRIP) $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)grpc++_codegen_lib$(SHARED_VERSION).$(SHARED_EXT)
 	$(E) "[STRIP]   Stripping $(SHARED_PREFIX)grpc++_unsecure$(SHARED_VERSION).$(SHARED_EXT)"
 	$(Q) $(STRIP) $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)grpc++_unsecure$(SHARED_VERSION).$(SHARED_EXT)
 endif
@@ -2075,6 +2077,9 @@
 	$(E) "[INSTALL] Installing libgrpc++.a"
 	$(Q) $(INSTALL) -d $(prefix)/lib
 	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc++.a $(prefix)/lib/libgrpc++.a
+	$(E) "[INSTALL] Installing libgrpc++_codegen_lib.a"
+	$(Q) $(INSTALL) -d $(prefix)/lib
+	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc++_codegen_lib.a $(prefix)/lib/libgrpc++_codegen_lib.a
 	$(E) "[INSTALL] Installing libgrpc++_unsecure.a"
 	$(Q) $(INSTALL) -d $(prefix)/lib
 	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc++_unsecure.a $(prefix)/lib/libgrpc++_unsecure.a
@@ -2137,6 +2142,15 @@
 	$(Q) ln -sf $(SHARED_PREFIX)grpc++$(SHARED_VERSION).$(SHARED_EXT) $(prefix)/lib/libgrpc++.so.0
 	$(Q) ln -sf $(SHARED_PREFIX)grpc++$(SHARED_VERSION).$(SHARED_EXT) $(prefix)/lib/libgrpc++.so
 endif
+	$(E) "[INSTALL] Installing $(SHARED_PREFIX)grpc++_codegen_lib$(SHARED_VERSION).$(SHARED_EXT)"
+	$(Q) $(INSTALL) -d $(prefix)/lib
+	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)grpc++_codegen_lib$(SHARED_VERSION).$(SHARED_EXT) $(prefix)/lib/$(SHARED_PREFIX)grpc++_codegen_lib$(SHARED_VERSION).$(SHARED_EXT)
+ifeq ($(SYSTEM),MINGW32)
+	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/libgrpc++_codegen_lib-imp.a $(prefix)/lib/libgrpc++_codegen_lib-imp.a
+else ifneq ($(SYSTEM),Darwin)
+	$(Q) ln -sf $(SHARED_PREFIX)grpc++_codegen_lib$(SHARED_VERSION).$(SHARED_EXT) $(prefix)/lib/libgrpc++_codegen_lib.so.0
+	$(Q) ln -sf $(SHARED_PREFIX)grpc++_codegen_lib$(SHARED_VERSION).$(SHARED_EXT) $(prefix)/lib/libgrpc++_codegen_lib.so
+endif
 	$(E) "[INSTALL] Installing $(SHARED_PREFIX)grpc++_unsecure$(SHARED_VERSION).$(SHARED_EXT)"
 	$(Q) $(INSTALL) -d $(prefix)/lib
 	$(Q) $(INSTALL) $(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)grpc++_unsecure$(SHARED_VERSION).$(SHARED_EXT) $(prefix)/lib/$(SHARED_PREFIX)grpc++_unsecure$(SHARED_VERSION).$(SHARED_EXT)
@@ -2240,50 +2254,50 @@
 
 
 LIBGPR_SRC = \
-    src/core/profiling/basic_timers.c \
-    src/core/profiling/stap_timers.c \
-    src/core/support/alloc.c \
-    src/core/support/avl.c \
-    src/core/support/backoff.c \
-    src/core/support/cmdline.c \
-    src/core/support/cpu_iphone.c \
-    src/core/support/cpu_linux.c \
-    src/core/support/cpu_posix.c \
-    src/core/support/cpu_windows.c \
-    src/core/support/env_linux.c \
-    src/core/support/env_posix.c \
-    src/core/support/env_win32.c \
-    src/core/support/histogram.c \
-    src/core/support/host_port.c \
-    src/core/support/load_file.c \
-    src/core/support/log.c \
-    src/core/support/log_android.c \
-    src/core/support/log_linux.c \
-    src/core/support/log_posix.c \
-    src/core/support/log_win32.c \
-    src/core/support/murmur_hash.c \
-    src/core/support/slice.c \
-    src/core/support/slice_buffer.c \
-    src/core/support/stack_lockfree.c \
-    src/core/support/string.c \
-    src/core/support/string_posix.c \
-    src/core/support/string_win32.c \
-    src/core/support/subprocess_posix.c \
-    src/core/support/subprocess_windows.c \
-    src/core/support/sync.c \
-    src/core/support/sync_posix.c \
-    src/core/support/sync_win32.c \
-    src/core/support/thd.c \
-    src/core/support/thd_posix.c \
-    src/core/support/thd_win32.c \
-    src/core/support/time.c \
-    src/core/support/time_posix.c \
-    src/core/support/time_precise.c \
-    src/core/support/time_win32.c \
-    src/core/support/tls_pthread.c \
-    src/core/support/tmpfile_posix.c \
-    src/core/support/tmpfile_win32.c \
-    src/core/support/wrap_memcpy.c \
+    src/core/lib/profiling/basic_timers.c \
+    src/core/lib/profiling/stap_timers.c \
+    src/core/lib/support/alloc.c \
+    src/core/lib/support/avl.c \
+    src/core/lib/support/backoff.c \
+    src/core/lib/support/cmdline.c \
+    src/core/lib/support/cpu_iphone.c \
+    src/core/lib/support/cpu_linux.c \
+    src/core/lib/support/cpu_posix.c \
+    src/core/lib/support/cpu_windows.c \
+    src/core/lib/support/env_linux.c \
+    src/core/lib/support/env_posix.c \
+    src/core/lib/support/env_win32.c \
+    src/core/lib/support/histogram.c \
+    src/core/lib/support/host_port.c \
+    src/core/lib/support/load_file.c \
+    src/core/lib/support/log.c \
+    src/core/lib/support/log_android.c \
+    src/core/lib/support/log_linux.c \
+    src/core/lib/support/log_posix.c \
+    src/core/lib/support/log_win32.c \
+    src/core/lib/support/murmur_hash.c \
+    src/core/lib/support/slice.c \
+    src/core/lib/support/slice_buffer.c \
+    src/core/lib/support/stack_lockfree.c \
+    src/core/lib/support/string.c \
+    src/core/lib/support/string_posix.c \
+    src/core/lib/support/string_win32.c \
+    src/core/lib/support/subprocess_posix.c \
+    src/core/lib/support/subprocess_windows.c \
+    src/core/lib/support/sync.c \
+    src/core/lib/support/sync_posix.c \
+    src/core/lib/support/sync_win32.c \
+    src/core/lib/support/thd.c \
+    src/core/lib/support/thd_posix.c \
+    src/core/lib/support/thd_win32.c \
+    src/core/lib/support/time.c \
+    src/core/lib/support/time_posix.c \
+    src/core/lib/support/time_precise.c \
+    src/core/lib/support/time_win32.c \
+    src/core/lib/support/tls_pthread.c \
+    src/core/lib/support/tmpfile_posix.c \
+    src/core/lib/support/tmpfile_win32.c \
+    src/core/lib/support/wrap_memcpy.c \
 
 PUBLIC_HEADERS_C += \
     include/grpc/support/alloc.h \
@@ -2391,163 +2405,164 @@
 
 
 LIBGRPC_SRC = \
-    src/core/census/grpc_context.c \
-    src/core/census/grpc_filter.c \
-    src/core/census/grpc_plugin.c \
-    src/core/channel/channel_args.c \
-    src/core/channel/channel_stack.c \
-    src/core/channel/channel_stack_builder.c \
-    src/core/channel/client_channel.c \
-    src/core/channel/client_uchannel.c \
-    src/core/channel/compress_filter.c \
-    src/core/channel/connected_channel.c \
-    src/core/channel/http_client_filter.c \
-    src/core/channel/http_server_filter.c \
-    src/core/channel/subchannel_call_holder.c \
-    src/core/client_config/client_config.c \
-    src/core/client_config/connector.c \
-    src/core/client_config/default_initial_connect_string.c \
-    src/core/client_config/initial_connect_string.c \
-    src/core/client_config/lb_policies/load_balancer_api.c \
-    src/core/client_config/lb_policies/pick_first.c \
-    src/core/client_config/lb_policies/round_robin.c \
-    src/core/client_config/lb_policy.c \
-    src/core/client_config/lb_policy_factory.c \
-    src/core/client_config/lb_policy_registry.c \
-    src/core/client_config/resolver.c \
-    src/core/client_config/resolver_factory.c \
-    src/core/client_config/resolver_registry.c \
-    src/core/client_config/resolvers/dns_resolver.c \
-    src/core/client_config/resolvers/sockaddr_resolver.c \
-    src/core/client_config/subchannel.c \
-    src/core/client_config/subchannel_factory.c \
-    src/core/client_config/subchannel_index.c \
-    src/core/client_config/uri_parser.c \
-    src/core/compression/compression_algorithm.c \
-    src/core/compression/message_compress.c \
-    src/core/debug/trace.c \
-    src/core/httpcli/format_request.c \
-    src/core/httpcli/httpcli.c \
-    src/core/httpcli/parser.c \
-    src/core/iomgr/closure.c \
-    src/core/iomgr/endpoint.c \
-    src/core/iomgr/endpoint_pair_posix.c \
-    src/core/iomgr/endpoint_pair_windows.c \
-    src/core/iomgr/ev_poll_and_epoll_posix.c \
-    src/core/iomgr/ev_posix.c \
-    src/core/iomgr/exec_ctx.c \
-    src/core/iomgr/executor.c \
-    src/core/iomgr/iocp_windows.c \
-    src/core/iomgr/iomgr.c \
-    src/core/iomgr/iomgr_posix.c \
-    src/core/iomgr/iomgr_windows.c \
-    src/core/iomgr/pollset_set_windows.c \
-    src/core/iomgr/pollset_windows.c \
-    src/core/iomgr/resolve_address_posix.c \
-    src/core/iomgr/resolve_address_windows.c \
-    src/core/iomgr/sockaddr_utils.c \
-    src/core/iomgr/socket_utils_common_posix.c \
-    src/core/iomgr/socket_utils_linux.c \
-    src/core/iomgr/socket_utils_posix.c \
-    src/core/iomgr/socket_windows.c \
-    src/core/iomgr/tcp_client_posix.c \
-    src/core/iomgr/tcp_client_windows.c \
-    src/core/iomgr/tcp_posix.c \
-    src/core/iomgr/tcp_server_posix.c \
-    src/core/iomgr/tcp_server_windows.c \
-    src/core/iomgr/tcp_windows.c \
-    src/core/iomgr/time_averaged_stats.c \
-    src/core/iomgr/timer.c \
-    src/core/iomgr/timer_heap.c \
-    src/core/iomgr/udp_server.c \
-    src/core/iomgr/wakeup_fd_eventfd.c \
-    src/core/iomgr/wakeup_fd_nospecial.c \
-    src/core/iomgr/wakeup_fd_pipe.c \
-    src/core/iomgr/wakeup_fd_posix.c \
-    src/core/iomgr/workqueue_posix.c \
-    src/core/iomgr/workqueue_windows.c \
-    src/core/json/json.c \
-    src/core/json/json_reader.c \
-    src/core/json/json_string.c \
-    src/core/json/json_writer.c \
-    src/core/proto/grpc/lb/v0/load_balancer.pb.c \
-    src/core/surface/alarm.c \
-    src/core/surface/api_trace.c \
-    src/core/surface/byte_buffer.c \
-    src/core/surface/byte_buffer_reader.c \
-    src/core/surface/call.c \
-    src/core/surface/call_details.c \
-    src/core/surface/call_log_batch.c \
-    src/core/surface/channel.c \
-    src/core/surface/channel_connectivity.c \
-    src/core/surface/channel_create.c \
-    src/core/surface/channel_init.c \
-    src/core/surface/channel_ping.c \
-    src/core/surface/channel_stack_type.c \
-    src/core/surface/completion_queue.c \
-    src/core/surface/event_string.c \
-    src/core/surface/init.c \
-    src/core/surface/lame_client.c \
-    src/core/surface/metadata_array.c \
-    src/core/surface/server.c \
-    src/core/surface/server_chttp2.c \
-    src/core/surface/validate_metadata.c \
-    src/core/surface/version.c \
-    src/core/transport/byte_stream.c \
-    src/core/transport/chttp2/alpn.c \
-    src/core/transport/chttp2/bin_encoder.c \
-    src/core/transport/chttp2/frame_data.c \
-    src/core/transport/chttp2/frame_goaway.c \
-    src/core/transport/chttp2/frame_ping.c \
-    src/core/transport/chttp2/frame_rst_stream.c \
-    src/core/transport/chttp2/frame_settings.c \
-    src/core/transport/chttp2/frame_window_update.c \
-    src/core/transport/chttp2/hpack_encoder.c \
-    src/core/transport/chttp2/hpack_parser.c \
-    src/core/transport/chttp2/hpack_table.c \
-    src/core/transport/chttp2/huffsyms.c \
-    src/core/transport/chttp2/incoming_metadata.c \
-    src/core/transport/chttp2/parsing.c \
-    src/core/transport/chttp2/status_conversion.c \
-    src/core/transport/chttp2/stream_lists.c \
-    src/core/transport/chttp2/stream_map.c \
-    src/core/transport/chttp2/timeout_encoding.c \
-    src/core/transport/chttp2/varint.c \
-    src/core/transport/chttp2/writing.c \
-    src/core/transport/chttp2_transport.c \
-    src/core/transport/connectivity_state.c \
-    src/core/transport/metadata.c \
-    src/core/transport/metadata_batch.c \
-    src/core/transport/static_metadata.c \
-    src/core/transport/transport.c \
-    src/core/transport/transport_op_string.c \
-    src/core/httpcli/httpcli_security_connector.c \
-    src/core/security/b64.c \
-    src/core/security/client_auth_filter.c \
-    src/core/security/credentials.c \
-    src/core/security/credentials_metadata.c \
-    src/core/security/credentials_posix.c \
-    src/core/security/credentials_win32.c \
-    src/core/security/google_default_credentials.c \
-    src/core/security/handshake.c \
-    src/core/security/json_token.c \
-    src/core/security/jwt_verifier.c \
-    src/core/security/secure_endpoint.c \
-    src/core/security/security_connector.c \
-    src/core/security/security_context.c \
-    src/core/security/server_auth_filter.c \
-    src/core/security/server_secure_chttp2.c \
-    src/core/surface/init_secure.c \
-    src/core/surface/secure_channel_create.c \
-    src/core/tsi/fake_transport_security.c \
-    src/core/tsi/ssl_transport_security.c \
-    src/core/tsi/transport_security.c \
-    src/core/census/context.c \
-    src/core/census/initialize.c \
-    src/core/census/mlog.c \
-    src/core/census/operation.c \
-    src/core/census/placeholders.c \
-    src/core/census/tracing.c \
+    src/core/lib/census/grpc_context.c \
+    src/core/lib/census/grpc_filter.c \
+    src/core/lib/census/grpc_plugin.c \
+    src/core/lib/channel/channel_args.c \
+    src/core/lib/channel/channel_stack.c \
+    src/core/lib/channel/channel_stack_builder.c \
+    src/core/lib/channel/client_channel.c \
+    src/core/lib/channel/compress_filter.c \
+    src/core/lib/channel/connected_channel.c \
+    src/core/lib/channel/http_client_filter.c \
+    src/core/lib/channel/http_server_filter.c \
+    src/core/lib/channel/subchannel_call_holder.c \
+    src/core/lib/client_config/client_config.c \
+    src/core/lib/client_config/connector.c \
+    src/core/lib/client_config/default_initial_connect_string.c \
+    src/core/lib/client_config/initial_connect_string.c \
+    src/core/lib/client_config/lb_policies/load_balancer_api.c \
+    src/core/lib/client_config/lb_policies/pick_first.c \
+    src/core/lib/client_config/lb_policies/round_robin.c \
+    src/core/lib/client_config/lb_policy.c \
+    src/core/lib/client_config/lb_policy_factory.c \
+    src/core/lib/client_config/lb_policy_registry.c \
+    src/core/lib/client_config/resolver.c \
+    src/core/lib/client_config/resolver_factory.c \
+    src/core/lib/client_config/resolver_registry.c \
+    src/core/lib/client_config/resolvers/dns_resolver.c \
+    src/core/lib/client_config/resolvers/sockaddr_resolver.c \
+    src/core/lib/client_config/subchannel.c \
+    src/core/lib/client_config/subchannel_factory.c \
+    src/core/lib/client_config/subchannel_index.c \
+    src/core/lib/client_config/uri_parser.c \
+    src/core/lib/compression/compression_algorithm.c \
+    src/core/lib/compression/message_compress.c \
+    src/core/lib/debug/trace.c \
+    src/core/lib/http/format_request.c \
+    src/core/lib/http/httpcli.c \
+    src/core/lib/http/parser.c \
+    src/core/lib/iomgr/closure.c \
+    src/core/lib/iomgr/endpoint.c \
+    src/core/lib/iomgr/endpoint_pair_posix.c \
+    src/core/lib/iomgr/endpoint_pair_windows.c \
+    src/core/lib/iomgr/ev_poll_and_epoll_posix.c \
+    src/core/lib/iomgr/ev_posix.c \
+    src/core/lib/iomgr/exec_ctx.c \
+    src/core/lib/iomgr/executor.c \
+    src/core/lib/iomgr/iocp_windows.c \
+    src/core/lib/iomgr/iomgr.c \
+    src/core/lib/iomgr/iomgr_posix.c \
+    src/core/lib/iomgr/iomgr_windows.c \
+    src/core/lib/iomgr/pollset_set_windows.c \
+    src/core/lib/iomgr/pollset_windows.c \
+    src/core/lib/iomgr/resolve_address_posix.c \
+    src/core/lib/iomgr/resolve_address_windows.c \
+    src/core/lib/iomgr/sockaddr_utils.c \
+    src/core/lib/iomgr/socket_utils_common_posix.c \
+    src/core/lib/iomgr/socket_utils_linux.c \
+    src/core/lib/iomgr/socket_utils_posix.c \
+    src/core/lib/iomgr/socket_windows.c \
+    src/core/lib/iomgr/tcp_client_posix.c \
+    src/core/lib/iomgr/tcp_client_windows.c \
+    src/core/lib/iomgr/tcp_posix.c \
+    src/core/lib/iomgr/tcp_server_posix.c \
+    src/core/lib/iomgr/tcp_server_windows.c \
+    src/core/lib/iomgr/tcp_windows.c \
+    src/core/lib/iomgr/time_averaged_stats.c \
+    src/core/lib/iomgr/timer.c \
+    src/core/lib/iomgr/timer_heap.c \
+    src/core/lib/iomgr/udp_server.c \
+    src/core/lib/iomgr/unix_sockets_posix.c \
+    src/core/lib/iomgr/unix_sockets_posix_noop.c \
+    src/core/lib/iomgr/wakeup_fd_eventfd.c \
+    src/core/lib/iomgr/wakeup_fd_nospecial.c \
+    src/core/lib/iomgr/wakeup_fd_pipe.c \
+    src/core/lib/iomgr/wakeup_fd_posix.c \
+    src/core/lib/iomgr/workqueue_posix.c \
+    src/core/lib/iomgr/workqueue_windows.c \
+    src/core/lib/json/json.c \
+    src/core/lib/json/json_reader.c \
+    src/core/lib/json/json_string.c \
+    src/core/lib/json/json_writer.c \
+    src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c \
+    src/core/lib/surface/alarm.c \
+    src/core/lib/surface/api_trace.c \
+    src/core/lib/surface/byte_buffer.c \
+    src/core/lib/surface/byte_buffer_reader.c \
+    src/core/lib/surface/call.c \
+    src/core/lib/surface/call_details.c \
+    src/core/lib/surface/call_log_batch.c \
+    src/core/lib/surface/channel.c \
+    src/core/lib/surface/channel_connectivity.c \
+    src/core/lib/surface/channel_create.c \
+    src/core/lib/surface/channel_init.c \
+    src/core/lib/surface/channel_ping.c \
+    src/core/lib/surface/channel_stack_type.c \
+    src/core/lib/surface/completion_queue.c \
+    src/core/lib/surface/event_string.c \
+    src/core/lib/surface/init.c \
+    src/core/lib/surface/lame_client.c \
+    src/core/lib/surface/metadata_array.c \
+    src/core/lib/surface/server.c \
+    src/core/lib/surface/server_chttp2.c \
+    src/core/lib/surface/validate_metadata.c \
+    src/core/lib/surface/version.c \
+    src/core/lib/transport/byte_stream.c \
+    src/core/lib/transport/chttp2/alpn.c \
+    src/core/lib/transport/chttp2/bin_encoder.c \
+    src/core/lib/transport/chttp2/frame_data.c \
+    src/core/lib/transport/chttp2/frame_goaway.c \
+    src/core/lib/transport/chttp2/frame_ping.c \
+    src/core/lib/transport/chttp2/frame_rst_stream.c \
+    src/core/lib/transport/chttp2/frame_settings.c \
+    src/core/lib/transport/chttp2/frame_window_update.c \
+    src/core/lib/transport/chttp2/hpack_encoder.c \
+    src/core/lib/transport/chttp2/hpack_parser.c \
+    src/core/lib/transport/chttp2/hpack_table.c \
+    src/core/lib/transport/chttp2/huffsyms.c \
+    src/core/lib/transport/chttp2/incoming_metadata.c \
+    src/core/lib/transport/chttp2/parsing.c \
+    src/core/lib/transport/chttp2/status_conversion.c \
+    src/core/lib/transport/chttp2/stream_lists.c \
+    src/core/lib/transport/chttp2/stream_map.c \
+    src/core/lib/transport/chttp2/timeout_encoding.c \
+    src/core/lib/transport/chttp2/varint.c \
+    src/core/lib/transport/chttp2/writing.c \
+    src/core/lib/transport/chttp2_transport.c \
+    src/core/lib/transport/connectivity_state.c \
+    src/core/lib/transport/metadata.c \
+    src/core/lib/transport/metadata_batch.c \
+    src/core/lib/transport/static_metadata.c \
+    src/core/lib/transport/transport.c \
+    src/core/lib/transport/transport_op_string.c \
+    src/core/lib/http/httpcli_security_connector.c \
+    src/core/lib/security/b64.c \
+    src/core/lib/security/client_auth_filter.c \
+    src/core/lib/security/credentials.c \
+    src/core/lib/security/credentials_metadata.c \
+    src/core/lib/security/credentials_posix.c \
+    src/core/lib/security/credentials_win32.c \
+    src/core/lib/security/google_default_credentials.c \
+    src/core/lib/security/handshake.c \
+    src/core/lib/security/json_token.c \
+    src/core/lib/security/jwt_verifier.c \
+    src/core/lib/security/secure_endpoint.c \
+    src/core/lib/security/security_connector.c \
+    src/core/lib/security/security_context.c \
+    src/core/lib/security/server_auth_filter.c \
+    src/core/lib/security/server_secure_chttp2.c \
+    src/core/lib/surface/init_secure.c \
+    src/core/lib/surface/secure_channel_create.c \
+    src/core/lib/tsi/fake_transport_security.c \
+    src/core/lib/tsi/ssl_transport_security.c \
+    src/core/lib/tsi/transport_security.c \
+    src/core/lib/census/context.c \
+    src/core/lib/census/initialize.c \
+    src/core/lib/census/mlog.c \
+    src/core/lib/census/operation.c \
+    src/core/lib/census/placeholders.c \
+    src/core/lib/census/tracing.c \
     third_party/nanopb/pb_common.c \
     third_party/nanopb/pb_decode.c \
     third_party/nanopb/pb_encode.c \
@@ -2748,143 +2763,144 @@
 
 
 LIBGRPC_UNSECURE_SRC = \
-    src/core/surface/init_unsecure.c \
-    src/core/census/grpc_context.c \
-    src/core/census/grpc_filter.c \
-    src/core/census/grpc_plugin.c \
-    src/core/channel/channel_args.c \
-    src/core/channel/channel_stack.c \
-    src/core/channel/channel_stack_builder.c \
-    src/core/channel/client_channel.c \
-    src/core/channel/client_uchannel.c \
-    src/core/channel/compress_filter.c \
-    src/core/channel/connected_channel.c \
-    src/core/channel/http_client_filter.c \
-    src/core/channel/http_server_filter.c \
-    src/core/channel/subchannel_call_holder.c \
-    src/core/client_config/client_config.c \
-    src/core/client_config/connector.c \
-    src/core/client_config/default_initial_connect_string.c \
-    src/core/client_config/initial_connect_string.c \
-    src/core/client_config/lb_policies/load_balancer_api.c \
-    src/core/client_config/lb_policies/pick_first.c \
-    src/core/client_config/lb_policies/round_robin.c \
-    src/core/client_config/lb_policy.c \
-    src/core/client_config/lb_policy_factory.c \
-    src/core/client_config/lb_policy_registry.c \
-    src/core/client_config/resolver.c \
-    src/core/client_config/resolver_factory.c \
-    src/core/client_config/resolver_registry.c \
-    src/core/client_config/resolvers/dns_resolver.c \
-    src/core/client_config/resolvers/sockaddr_resolver.c \
-    src/core/client_config/subchannel.c \
-    src/core/client_config/subchannel_factory.c \
-    src/core/client_config/subchannel_index.c \
-    src/core/client_config/uri_parser.c \
-    src/core/compression/compression_algorithm.c \
-    src/core/compression/message_compress.c \
-    src/core/debug/trace.c \
-    src/core/httpcli/format_request.c \
-    src/core/httpcli/httpcli.c \
-    src/core/httpcli/parser.c \
-    src/core/iomgr/closure.c \
-    src/core/iomgr/endpoint.c \
-    src/core/iomgr/endpoint_pair_posix.c \
-    src/core/iomgr/endpoint_pair_windows.c \
-    src/core/iomgr/ev_poll_and_epoll_posix.c \
-    src/core/iomgr/ev_posix.c \
-    src/core/iomgr/exec_ctx.c \
-    src/core/iomgr/executor.c \
-    src/core/iomgr/iocp_windows.c \
-    src/core/iomgr/iomgr.c \
-    src/core/iomgr/iomgr_posix.c \
-    src/core/iomgr/iomgr_windows.c \
-    src/core/iomgr/pollset_set_windows.c \
-    src/core/iomgr/pollset_windows.c \
-    src/core/iomgr/resolve_address_posix.c \
-    src/core/iomgr/resolve_address_windows.c \
-    src/core/iomgr/sockaddr_utils.c \
-    src/core/iomgr/socket_utils_common_posix.c \
-    src/core/iomgr/socket_utils_linux.c \
-    src/core/iomgr/socket_utils_posix.c \
-    src/core/iomgr/socket_windows.c \
-    src/core/iomgr/tcp_client_posix.c \
-    src/core/iomgr/tcp_client_windows.c \
-    src/core/iomgr/tcp_posix.c \
-    src/core/iomgr/tcp_server_posix.c \
-    src/core/iomgr/tcp_server_windows.c \
-    src/core/iomgr/tcp_windows.c \
-    src/core/iomgr/time_averaged_stats.c \
-    src/core/iomgr/timer.c \
-    src/core/iomgr/timer_heap.c \
-    src/core/iomgr/udp_server.c \
-    src/core/iomgr/wakeup_fd_eventfd.c \
-    src/core/iomgr/wakeup_fd_nospecial.c \
-    src/core/iomgr/wakeup_fd_pipe.c \
-    src/core/iomgr/wakeup_fd_posix.c \
-    src/core/iomgr/workqueue_posix.c \
-    src/core/iomgr/workqueue_windows.c \
-    src/core/json/json.c \
-    src/core/json/json_reader.c \
-    src/core/json/json_string.c \
-    src/core/json/json_writer.c \
-    src/core/proto/grpc/lb/v0/load_balancer.pb.c \
-    src/core/surface/alarm.c \
-    src/core/surface/api_trace.c \
-    src/core/surface/byte_buffer.c \
-    src/core/surface/byte_buffer_reader.c \
-    src/core/surface/call.c \
-    src/core/surface/call_details.c \
-    src/core/surface/call_log_batch.c \
-    src/core/surface/channel.c \
-    src/core/surface/channel_connectivity.c \
-    src/core/surface/channel_create.c \
-    src/core/surface/channel_init.c \
-    src/core/surface/channel_ping.c \
-    src/core/surface/channel_stack_type.c \
-    src/core/surface/completion_queue.c \
-    src/core/surface/event_string.c \
-    src/core/surface/init.c \
-    src/core/surface/lame_client.c \
-    src/core/surface/metadata_array.c \
-    src/core/surface/server.c \
-    src/core/surface/server_chttp2.c \
-    src/core/surface/validate_metadata.c \
-    src/core/surface/version.c \
-    src/core/transport/byte_stream.c \
-    src/core/transport/chttp2/alpn.c \
-    src/core/transport/chttp2/bin_encoder.c \
-    src/core/transport/chttp2/frame_data.c \
-    src/core/transport/chttp2/frame_goaway.c \
-    src/core/transport/chttp2/frame_ping.c \
-    src/core/transport/chttp2/frame_rst_stream.c \
-    src/core/transport/chttp2/frame_settings.c \
-    src/core/transport/chttp2/frame_window_update.c \
-    src/core/transport/chttp2/hpack_encoder.c \
-    src/core/transport/chttp2/hpack_parser.c \
-    src/core/transport/chttp2/hpack_table.c \
-    src/core/transport/chttp2/huffsyms.c \
-    src/core/transport/chttp2/incoming_metadata.c \
-    src/core/transport/chttp2/parsing.c \
-    src/core/transport/chttp2/status_conversion.c \
-    src/core/transport/chttp2/stream_lists.c \
-    src/core/transport/chttp2/stream_map.c \
-    src/core/transport/chttp2/timeout_encoding.c \
-    src/core/transport/chttp2/varint.c \
-    src/core/transport/chttp2/writing.c \
-    src/core/transport/chttp2_transport.c \
-    src/core/transport/connectivity_state.c \
-    src/core/transport/metadata.c \
-    src/core/transport/metadata_batch.c \
-    src/core/transport/static_metadata.c \
-    src/core/transport/transport.c \
-    src/core/transport/transport_op_string.c \
-    src/core/census/context.c \
-    src/core/census/initialize.c \
-    src/core/census/mlog.c \
-    src/core/census/operation.c \
-    src/core/census/placeholders.c \
-    src/core/census/tracing.c \
+    src/core/lib/surface/init_unsecure.c \
+    src/core/lib/census/grpc_context.c \
+    src/core/lib/census/grpc_filter.c \
+    src/core/lib/census/grpc_plugin.c \
+    src/core/lib/channel/channel_args.c \
+    src/core/lib/channel/channel_stack.c \
+    src/core/lib/channel/channel_stack_builder.c \
+    src/core/lib/channel/client_channel.c \
+    src/core/lib/channel/compress_filter.c \
+    src/core/lib/channel/connected_channel.c \
+    src/core/lib/channel/http_client_filter.c \
+    src/core/lib/channel/http_server_filter.c \
+    src/core/lib/channel/subchannel_call_holder.c \
+    src/core/lib/client_config/client_config.c \
+    src/core/lib/client_config/connector.c \
+    src/core/lib/client_config/default_initial_connect_string.c \
+    src/core/lib/client_config/initial_connect_string.c \
+    src/core/lib/client_config/lb_policies/load_balancer_api.c \
+    src/core/lib/client_config/lb_policies/pick_first.c \
+    src/core/lib/client_config/lb_policies/round_robin.c \
+    src/core/lib/client_config/lb_policy.c \
+    src/core/lib/client_config/lb_policy_factory.c \
+    src/core/lib/client_config/lb_policy_registry.c \
+    src/core/lib/client_config/resolver.c \
+    src/core/lib/client_config/resolver_factory.c \
+    src/core/lib/client_config/resolver_registry.c \
+    src/core/lib/client_config/resolvers/dns_resolver.c \
+    src/core/lib/client_config/resolvers/sockaddr_resolver.c \
+    src/core/lib/client_config/subchannel.c \
+    src/core/lib/client_config/subchannel_factory.c \
+    src/core/lib/client_config/subchannel_index.c \
+    src/core/lib/client_config/uri_parser.c \
+    src/core/lib/compression/compression_algorithm.c \
+    src/core/lib/compression/message_compress.c \
+    src/core/lib/debug/trace.c \
+    src/core/lib/http/format_request.c \
+    src/core/lib/http/httpcli.c \
+    src/core/lib/http/parser.c \
+    src/core/lib/iomgr/closure.c \
+    src/core/lib/iomgr/endpoint.c \
+    src/core/lib/iomgr/endpoint_pair_posix.c \
+    src/core/lib/iomgr/endpoint_pair_windows.c \
+    src/core/lib/iomgr/ev_poll_and_epoll_posix.c \
+    src/core/lib/iomgr/ev_posix.c \
+    src/core/lib/iomgr/exec_ctx.c \
+    src/core/lib/iomgr/executor.c \
+    src/core/lib/iomgr/iocp_windows.c \
+    src/core/lib/iomgr/iomgr.c \
+    src/core/lib/iomgr/iomgr_posix.c \
+    src/core/lib/iomgr/iomgr_windows.c \
+    src/core/lib/iomgr/pollset_set_windows.c \
+    src/core/lib/iomgr/pollset_windows.c \
+    src/core/lib/iomgr/resolve_address_posix.c \
+    src/core/lib/iomgr/resolve_address_windows.c \
+    src/core/lib/iomgr/sockaddr_utils.c \
+    src/core/lib/iomgr/socket_utils_common_posix.c \
+    src/core/lib/iomgr/socket_utils_linux.c \
+    src/core/lib/iomgr/socket_utils_posix.c \
+    src/core/lib/iomgr/socket_windows.c \
+    src/core/lib/iomgr/tcp_client_posix.c \
+    src/core/lib/iomgr/tcp_client_windows.c \
+    src/core/lib/iomgr/tcp_posix.c \
+    src/core/lib/iomgr/tcp_server_posix.c \
+    src/core/lib/iomgr/tcp_server_windows.c \
+    src/core/lib/iomgr/tcp_windows.c \
+    src/core/lib/iomgr/time_averaged_stats.c \
+    src/core/lib/iomgr/timer.c \
+    src/core/lib/iomgr/timer_heap.c \
+    src/core/lib/iomgr/udp_server.c \
+    src/core/lib/iomgr/unix_sockets_posix.c \
+    src/core/lib/iomgr/unix_sockets_posix_noop.c \
+    src/core/lib/iomgr/wakeup_fd_eventfd.c \
+    src/core/lib/iomgr/wakeup_fd_nospecial.c \
+    src/core/lib/iomgr/wakeup_fd_pipe.c \
+    src/core/lib/iomgr/wakeup_fd_posix.c \
+    src/core/lib/iomgr/workqueue_posix.c \
+    src/core/lib/iomgr/workqueue_windows.c \
+    src/core/lib/json/json.c \
+    src/core/lib/json/json_reader.c \
+    src/core/lib/json/json_string.c \
+    src/core/lib/json/json_writer.c \
+    src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c \
+    src/core/lib/surface/alarm.c \
+    src/core/lib/surface/api_trace.c \
+    src/core/lib/surface/byte_buffer.c \
+    src/core/lib/surface/byte_buffer_reader.c \
+    src/core/lib/surface/call.c \
+    src/core/lib/surface/call_details.c \
+    src/core/lib/surface/call_log_batch.c \
+    src/core/lib/surface/channel.c \
+    src/core/lib/surface/channel_connectivity.c \
+    src/core/lib/surface/channel_create.c \
+    src/core/lib/surface/channel_init.c \
+    src/core/lib/surface/channel_ping.c \
+    src/core/lib/surface/channel_stack_type.c \
+    src/core/lib/surface/completion_queue.c \
+    src/core/lib/surface/event_string.c \
+    src/core/lib/surface/init.c \
+    src/core/lib/surface/lame_client.c \
+    src/core/lib/surface/metadata_array.c \
+    src/core/lib/surface/server.c \
+    src/core/lib/surface/server_chttp2.c \
+    src/core/lib/surface/validate_metadata.c \
+    src/core/lib/surface/version.c \
+    src/core/lib/transport/byte_stream.c \
+    src/core/lib/transport/chttp2/alpn.c \
+    src/core/lib/transport/chttp2/bin_encoder.c \
+    src/core/lib/transport/chttp2/frame_data.c \
+    src/core/lib/transport/chttp2/frame_goaway.c \
+    src/core/lib/transport/chttp2/frame_ping.c \
+    src/core/lib/transport/chttp2/frame_rst_stream.c \
+    src/core/lib/transport/chttp2/frame_settings.c \
+    src/core/lib/transport/chttp2/frame_window_update.c \
+    src/core/lib/transport/chttp2/hpack_encoder.c \
+    src/core/lib/transport/chttp2/hpack_parser.c \
+    src/core/lib/transport/chttp2/hpack_table.c \
+    src/core/lib/transport/chttp2/huffsyms.c \
+    src/core/lib/transport/chttp2/incoming_metadata.c \
+    src/core/lib/transport/chttp2/parsing.c \
+    src/core/lib/transport/chttp2/status_conversion.c \
+    src/core/lib/transport/chttp2/stream_lists.c \
+    src/core/lib/transport/chttp2/stream_map.c \
+    src/core/lib/transport/chttp2/timeout_encoding.c \
+    src/core/lib/transport/chttp2/varint.c \
+    src/core/lib/transport/chttp2/writing.c \
+    src/core/lib/transport/chttp2_transport.c \
+    src/core/lib/transport/connectivity_state.c \
+    src/core/lib/transport/metadata.c \
+    src/core/lib/transport/metadata_batch.c \
+    src/core/lib/transport/static_metadata.c \
+    src/core/lib/transport/transport.c \
+    src/core/lib/transport/transport_op_string.c \
+    src/core/lib/census/context.c \
+    src/core/lib/census/initialize.c \
+    src/core/lib/census/mlog.c \
+    src/core/lib/census/operation.c \
+    src/core/lib/census/placeholders.c \
+    src/core/lib/census/tracing.c \
     third_party/nanopb/pb_common.c \
     third_party/nanopb/pb_decode.c \
     third_party/nanopb/pb_encode.c \
@@ -2941,7 +2957,7 @@
 
 
 LIBGRPC_ZOOKEEPER_SRC = \
-    src/core/client_config/resolvers/zookeeper_resolver.c \
+    src/core/lib/client_config/resolvers/zookeeper_resolver.c \
 
 PUBLIC_HEADERS_C += \
     include/grpc/grpc_zookeeper.h \
@@ -3297,6 +3313,7 @@
 
 $(LIBDIR)/$(CONFIG)/libgrpc++_codegen_lib.a: protobuf_dep_error
 
+$(LIBDIR)/$(CONFIG)/$(SHARED_PREFIX)grpc++_codegen_lib$(SHARED_VERSION).$(SHARED_EXT): protobuf_dep_error
 
 else
 
@@ -3311,6 +3328,23 @@
 
 
 
+ifeq ($(SYSTEM),MINGW32)
+$(LIBDIR)/$(CONFIG)/grpc++_codegen_lib$(SHARED_VERSION).$(SHARED_EXT): $(LIBGRPC++_CODEGEN_LIB_OBJS)  $(ZLIB_DEP) $(PROTOBUF_DEP)
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LDXX) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -shared grpc++_codegen_lib.def -Wl,--output-def=$(LIBDIR)/$(CONFIG)/grpc++_codegen_lib$(SHARED_VERSION).def -Wl,--out-implib=$(LIBDIR)/$(CONFIG)/libgrpc++_codegen_lib$(SHARED_VERSION)-dll.a -o $(LIBDIR)/$(CONFIG)/grpc++_codegen_lib$(SHARED_VERSION).$(SHARED_EXT) $(LIBGRPC++_CODEGEN_LIB_OBJS) $(LDLIBS) $(ZLIB_MERGE_LIBS) $(LDLIBSXX) $(LDLIBS_PROTOBUF)
+else
+$(LIBDIR)/$(CONFIG)/libgrpc++_codegen_lib$(SHARED_VERSION).$(SHARED_EXT): $(LIBGRPC++_CODEGEN_LIB_OBJS)  $(ZLIB_DEP) $(PROTOBUF_DEP)
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+ifeq ($(SYSTEM),Darwin)
+	$(Q) $(LDXX) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -install_name $(SHARED_PREFIX)grpc++_codegen_lib$(SHARED_VERSION).$(SHARED_EXT) -dynamiclib -o $(LIBDIR)/$(CONFIG)/libgrpc++_codegen_lib$(SHARED_VERSION).$(SHARED_EXT) $(LIBGRPC++_CODEGEN_LIB_OBJS) $(LDLIBS) $(ZLIB_MERGE_LIBS) $(LDLIBSXX) $(LDLIBS_PROTOBUF)
+else
+	$(Q) $(LDXX) $(LDFLAGS) -L$(LIBDIR)/$(CONFIG) -shared -Wl,-soname,libgrpc++_codegen_lib.so.0 -o $(LIBDIR)/$(CONFIG)/libgrpc++_codegen_lib$(SHARED_VERSION).$(SHARED_EXT) $(LIBGRPC++_CODEGEN_LIB_OBJS) $(LDLIBS) $(ZLIB_MERGE_LIBS) $(LDLIBSXX) $(LDLIBS_PROTOBUF)
+	$(Q) ln -sf $(SHARED_PREFIX)grpc++_codegen_lib$(SHARED_VERSION).$(SHARED_EXT) $(LIBDIR)/$(CONFIG)/libgrpc++_codegen_lib$(SHARED_VERSION).so.0
+	$(Q) ln -sf $(SHARED_PREFIX)grpc++_codegen_lib$(SHARED_VERSION).$(SHARED_EXT) $(LIBDIR)/$(CONFIG)/libgrpc++_codegen_lib$(SHARED_VERSION).so
+endif
+endif
 
 endif
 
@@ -4369,6 +4403,43 @@
 endif
 
 
+LIBBORINGSSL_ASN1_TEST_LIB_SRC = \
+    third_party/boringssl/crypto/asn1/asn1_test.cc \
+
+
+LIBBORINGSSL_ASN1_TEST_LIB_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(LIBBORINGSSL_ASN1_TEST_LIB_SRC))))
+
+$(LIBBORINGSSL_ASN1_TEST_LIB_OBJS): CPPFLAGS += -Ithird_party/boringssl/include -fvisibility=hidden -DOPENSSL_NO_ASM -D_GNU_SOURCE -DWIN32_LEAN_AND_MEAN -D_HAS_EXCEPTIONS=0 -DNOMINMAX
+$(LIBBORINGSSL_ASN1_TEST_LIB_OBJS): CFLAGS += -Wno-sign-conversion -Wno-conversion -Wno-unused-value -Wno-unknown-pragmas -Wno-implicit-function-declaration -Wno-unused-variable -Wno-sign-compare
+
+ifeq ($(NO_PROTOBUF),true)
+
+# You can't build a C++ library if you don't have protobuf - a bit overreached, but still okay.
+
+$(LIBDIR)/$(CONFIG)/libboringssl_asn1_test_lib.a: protobuf_dep_error
+
+
+else
+
+$(LIBDIR)/$(CONFIG)/libboringssl_asn1_test_lib.a: $(ZLIB_DEP)  $(PROTOBUF_DEP) $(LIBBORINGSSL_ASN1_TEST_LIB_OBJS) 
+	$(E) "[AR]      Creating $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) rm -f $(LIBDIR)/$(CONFIG)/libboringssl_asn1_test_lib.a
+	$(Q) $(AR) $(LIBDIR)/$(CONFIG)/libboringssl_asn1_test_lib.a $(LIBBORINGSSL_ASN1_TEST_LIB_OBJS) 
+ifeq ($(SYSTEM),Darwin)
+	$(Q) ranlib -no_warning_for_no_symbols $(LIBDIR)/$(CONFIG)/libboringssl_asn1_test_lib.a
+endif
+
+
+
+
+endif
+
+ifneq ($(NO_DEPS),true)
+-include $(LIBBORINGSSL_ASN1_TEST_LIB_OBJS:.o=.dep)
+endif
+
+
 LIBBORINGSSL_BASE64_TEST_LIB_SRC = \
     third_party/boringssl/crypto/base64/base64_test.cc \
 
@@ -7704,8 +7775,40 @@
 endif
 
 
+HTTP_PARSER_TEST_SRC = \
+    test/core/http/parser_test.c \
+
+HTTP_PARSER_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(HTTP_PARSER_TEST_SRC))))
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL.
+
+$(BINDIR)/$(CONFIG)/http_parser_test: openssl_dep_error
+
+else
+
+
+
+$(BINDIR)/$(CONFIG)/http_parser_test: $(HTTP_PARSER_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(HTTP_PARSER_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/http_parser_test
+
+endif
+
+$(OBJDIR)/$(CONFIG)/test/core/http/parser_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_http_parser_test: $(HTTP_PARSER_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(HTTP_PARSER_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
 HTTPCLI_FORMAT_REQUEST_TEST_SRC = \
-    test/core/httpcli/format_request_test.c \
+    test/core/http/format_request_test.c \
 
 HTTPCLI_FORMAT_REQUEST_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(HTTPCLI_FORMAT_REQUEST_TEST_SRC))))
 ifeq ($(NO_SECURE),true)
@@ -7725,7 +7828,7 @@
 
 endif
 
-$(OBJDIR)/$(CONFIG)/test/core/httpcli/format_request_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+$(OBJDIR)/$(CONFIG)/test/core/http/format_request_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
 
 deps_httpcli_format_request_test: $(HTTPCLI_FORMAT_REQUEST_TEST_OBJS:.o=.dep)
 
@@ -7736,40 +7839,8 @@
 endif
 
 
-HTTPCLI_PARSER_TEST_SRC = \
-    test/core/httpcli/parser_test.c \
-
-HTTPCLI_PARSER_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(HTTPCLI_PARSER_TEST_SRC))))
-ifeq ($(NO_SECURE),true)
-
-# You can't build secure targets if you don't have OpenSSL.
-
-$(BINDIR)/$(CONFIG)/httpcli_parser_test: openssl_dep_error
-
-else
-
-
-
-$(BINDIR)/$(CONFIG)/httpcli_parser_test: $(HTTPCLI_PARSER_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-	$(E) "[LD]      Linking $@"
-	$(Q) mkdir -p `dirname $@`
-	$(Q) $(LD) $(LDFLAGS) $(HTTPCLI_PARSER_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/httpcli_parser_test
-
-endif
-
-$(OBJDIR)/$(CONFIG)/test/core/httpcli/parser_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-
-deps_httpcli_parser_test: $(HTTPCLI_PARSER_TEST_OBJS:.o=.dep)
-
-ifneq ($(NO_SECURE),true)
-ifneq ($(NO_DEPS),true)
--include $(HTTPCLI_PARSER_TEST_OBJS:.o=.dep)
-endif
-endif
-
-
 HTTPCLI_TEST_SRC = \
-    test/core/httpcli/httpcli_test.c \
+    test/core/http/httpcli_test.c \
 
 HTTPCLI_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(HTTPCLI_TEST_SRC))))
 ifeq ($(NO_SECURE),true)
@@ -7789,7 +7860,7 @@
 
 endif
 
-$(OBJDIR)/$(CONFIG)/test/core/httpcli/httpcli_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+$(OBJDIR)/$(CONFIG)/test/core/http/httpcli_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
 
 deps_httpcli_test: $(HTTPCLI_TEST_OBJS:.o=.dep)
 
@@ -7801,7 +7872,7 @@
 
 
 HTTPSCLI_TEST_SRC = \
-    test/core/httpcli/httpscli_test.c \
+    test/core/http/httpscli_test.c \
 
 HTTPSCLI_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(HTTPSCLI_TEST_SRC))))
 ifeq ($(NO_SECURE),true)
@@ -7821,7 +7892,7 @@
 
 endif
 
-$(OBJDIR)/$(CONFIG)/test/core/httpcli/httpscli_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+$(OBJDIR)/$(CONFIG)/test/core/http/httpscli_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
 
 deps_httpscli_test: $(HTTPSCLI_TEST_OBJS:.o=.dep)
 
@@ -11225,6 +11296,33 @@
 # boringssl needs an override to ensure that it does not include
 # system openssl headers regardless of other configuration
 # we do so here with a target specific variable assignment
+$(BORINGSSL_ASN1_TEST_OBJS): CFLAGS := -Ithird_party/boringssl/include $(CFLAGS) -Wno-sign-conversion -Wno-conversion -Wno-unused-value
+$(BORINGSSL_ASN1_TEST_OBJS): CXXFLAGS := -Ithird_party/boringssl/include $(CXXFLAGS)
+$(BORINGSSL_ASN1_TEST_OBJS): CPPFLAGS += -DOPENSSL_NO_ASM -D_GNU_SOURCE
+
+
+ifeq ($(NO_PROTOBUF),true)
+
+# You can't build the protoc plugins or protobuf-enabled targets if you don't have protobuf 3.0.0+.
+
+$(BINDIR)/$(CONFIG)/boringssl_asn1_test: protobuf_dep_error
+
+else
+
+$(BINDIR)/$(CONFIG)/boringssl_asn1_test:  $(LIBDIR)/$(CONFIG)/libboringssl_asn1_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_test_util.a $(LIBDIR)/$(CONFIG)/libboringssl.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LDXX) $(LDFLAGS)  $(LIBDIR)/$(CONFIG)/libboringssl_asn1_test_lib.a $(LIBDIR)/$(CONFIG)/libboringssl_test_util.a $(LIBDIR)/$(CONFIG)/libboringssl.a $(LDLIBSXX) $(LDLIBS_PROTOBUF) $(LDLIBS) $(GTEST_LIB) -o $(BINDIR)/$(CONFIG)/boringssl_asn1_test
+
+endif
+
+
+
+
+
+# boringssl needs an override to ensure that it does not include
+# system openssl headers regardless of other configuration
+# we do so here with a target specific variable assignment
 $(BORINGSSL_BASE64_TEST_OBJS): CFLAGS := -Ithird_party/boringssl/include $(CFLAGS) -Wno-sign-conversion -Wno-conversion -Wno-unused-value
 $(BORINGSSL_BASE64_TEST_OBJS): CXXFLAGS := -Ithird_party/boringssl/include $(CXXFLAGS)
 $(BORINGSSL_BASE64_TEST_OBJS): CPPFLAGS += -DOPENSSL_NO_ASM -D_GNU_SOURCE
@@ -12870,38 +12968,6 @@
 endif
 
 
-H2_UCHANNEL_TEST_SRC = \
-    test/core/end2end/fixtures/h2_uchannel.c \
-
-H2_UCHANNEL_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(H2_UCHANNEL_TEST_SRC))))
-ifeq ($(NO_SECURE),true)
-
-# You can't build secure targets if you don't have OpenSSL.
-
-$(BINDIR)/$(CONFIG)/h2_uchannel_test: openssl_dep_error
-
-else
-
-
-
-$(BINDIR)/$(CONFIG)/h2_uchannel_test: $(H2_UCHANNEL_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libend2end_tests.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-	$(E) "[LD]      Linking $@"
-	$(Q) mkdir -p `dirname $@`
-	$(Q) $(LD) $(LDFLAGS) $(H2_UCHANNEL_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libend2end_tests.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/h2_uchannel_test
-
-endif
-
-$(OBJDIR)/$(CONFIG)/test/core/end2end/fixtures/h2_uchannel.o:  $(LIBDIR)/$(CONFIG)/libend2end_tests.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-
-deps_h2_uchannel_test: $(H2_UCHANNEL_TEST_OBJS:.o=.dep)
-
-ifneq ($(NO_SECURE),true)
-ifneq ($(NO_DEPS),true)
--include $(H2_UCHANNEL_TEST_OBJS:.o=.dep)
-endif
-endif
-
-
 H2_UDS_TEST_SRC = \
     test/core/end2end/fixtures/h2_uds.c \
 
@@ -13114,26 +13180,6 @@
 endif
 
 
-H2_UCHANNEL_NOSEC_TEST_SRC = \
-    test/core/end2end/fixtures/h2_uchannel.c \
-
-H2_UCHANNEL_NOSEC_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(H2_UCHANNEL_NOSEC_TEST_SRC))))
-
-
-$(BINDIR)/$(CONFIG)/h2_uchannel_nosec_test: $(H2_UCHANNEL_NOSEC_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libend2end_nosec_tests.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-	$(E) "[LD]      Linking $@"
-	$(Q) mkdir -p `dirname $@`
-	$(Q) $(LD) $(LDFLAGS) $(H2_UCHANNEL_NOSEC_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libend2end_nosec_tests.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) -o $(BINDIR)/$(CONFIG)/h2_uchannel_nosec_test
-
-$(OBJDIR)/$(CONFIG)/test/core/end2end/fixtures/h2_uchannel.o:  $(LIBDIR)/$(CONFIG)/libend2end_nosec_tests.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-
-deps_h2_uchannel_nosec_test: $(H2_UCHANNEL_NOSEC_TEST_OBJS:.o=.dep)
-
-ifneq ($(NO_DEPS),true)
--include $(H2_UCHANNEL_NOSEC_TEST_OBJS:.o=.dep)
-endif
-
-
 H2_UDS_NOSEC_TEST_SRC = \
     test/core/end2end/fixtures/h2_uds.c \
 
@@ -13162,27 +13208,27 @@
 # This is to ensure the embedded OpenSSL is built beforehand, properly
 # installing headers to their final destination on the drive. We need this
 # otherwise parallel compilation will fail if a source is compiled first.
-src/core/httpcli/httpcli_security_connector.c: $(OPENSSL_DEP)
-src/core/security/b64.c: $(OPENSSL_DEP)
-src/core/security/client_auth_filter.c: $(OPENSSL_DEP)
-src/core/security/credentials.c: $(OPENSSL_DEP)
-src/core/security/credentials_metadata.c: $(OPENSSL_DEP)
-src/core/security/credentials_posix.c: $(OPENSSL_DEP)
-src/core/security/credentials_win32.c: $(OPENSSL_DEP)
-src/core/security/google_default_credentials.c: $(OPENSSL_DEP)
-src/core/security/handshake.c: $(OPENSSL_DEP)
-src/core/security/json_token.c: $(OPENSSL_DEP)
-src/core/security/jwt_verifier.c: $(OPENSSL_DEP)
-src/core/security/secure_endpoint.c: $(OPENSSL_DEP)
-src/core/security/security_connector.c: $(OPENSSL_DEP)
-src/core/security/security_context.c: $(OPENSSL_DEP)
-src/core/security/server_auth_filter.c: $(OPENSSL_DEP)
-src/core/security/server_secure_chttp2.c: $(OPENSSL_DEP)
-src/core/surface/init_secure.c: $(OPENSSL_DEP)
-src/core/surface/secure_channel_create.c: $(OPENSSL_DEP)
-src/core/tsi/fake_transport_security.c: $(OPENSSL_DEP)
-src/core/tsi/ssl_transport_security.c: $(OPENSSL_DEP)
-src/core/tsi/transport_security.c: $(OPENSSL_DEP)
+src/core/lib/http/httpcli_security_connector.c: $(OPENSSL_DEP)
+src/core/lib/security/b64.c: $(OPENSSL_DEP)
+src/core/lib/security/client_auth_filter.c: $(OPENSSL_DEP)
+src/core/lib/security/credentials.c: $(OPENSSL_DEP)
+src/core/lib/security/credentials_metadata.c: $(OPENSSL_DEP)
+src/core/lib/security/credentials_posix.c: $(OPENSSL_DEP)
+src/core/lib/security/credentials_win32.c: $(OPENSSL_DEP)
+src/core/lib/security/google_default_credentials.c: $(OPENSSL_DEP)
+src/core/lib/security/handshake.c: $(OPENSSL_DEP)
+src/core/lib/security/json_token.c: $(OPENSSL_DEP)
+src/core/lib/security/jwt_verifier.c: $(OPENSSL_DEP)
+src/core/lib/security/secure_endpoint.c: $(OPENSSL_DEP)
+src/core/lib/security/security_connector.c: $(OPENSSL_DEP)
+src/core/lib/security/security_context.c: $(OPENSSL_DEP)
+src/core/lib/security/server_auth_filter.c: $(OPENSSL_DEP)
+src/core/lib/security/server_secure_chttp2.c: $(OPENSSL_DEP)
+src/core/lib/surface/init_secure.c: $(OPENSSL_DEP)
+src/core/lib/surface/secure_channel_create.c: $(OPENSSL_DEP)
+src/core/lib/tsi/fake_transport_security.c: $(OPENSSL_DEP)
+src/core/lib/tsi/ssl_transport_security.c: $(OPENSSL_DEP)
+src/core/lib/tsi/transport_security.c: $(OPENSSL_DEP)
 src/cpp/client/secure_credentials.cc: $(OPENSSL_DEP)
 src/cpp/common/auth_property_iterator.cc: $(OPENSSL_DEP)
 src/cpp/common/secure_auth_context.cc: $(OPENSSL_DEP)
diff --git a/binding.gyp b/binding.gyp
index ac29ad7..15a9714 100644
--- a/binding.gyp
+++ b/binding.gyp
@@ -492,50 +492,50 @@
       'dependencies': [
       ],
       'sources': [
-        'src/core/profiling/basic_timers.c',
-        'src/core/profiling/stap_timers.c',
-        'src/core/support/alloc.c',
-        'src/core/support/avl.c',
-        'src/core/support/backoff.c',
-        'src/core/support/cmdline.c',
-        'src/core/support/cpu_iphone.c',
-        'src/core/support/cpu_linux.c',
-        'src/core/support/cpu_posix.c',
-        'src/core/support/cpu_windows.c',
-        'src/core/support/env_linux.c',
-        'src/core/support/env_posix.c',
-        'src/core/support/env_win32.c',
-        'src/core/support/histogram.c',
-        'src/core/support/host_port.c',
-        'src/core/support/load_file.c',
-        'src/core/support/log.c',
-        'src/core/support/log_android.c',
-        'src/core/support/log_linux.c',
-        'src/core/support/log_posix.c',
-        'src/core/support/log_win32.c',
-        'src/core/support/murmur_hash.c',
-        'src/core/support/slice.c',
-        'src/core/support/slice_buffer.c',
-        'src/core/support/stack_lockfree.c',
-        'src/core/support/string.c',
-        'src/core/support/string_posix.c',
-        'src/core/support/string_win32.c',
-        'src/core/support/subprocess_posix.c',
-        'src/core/support/subprocess_windows.c',
-        'src/core/support/sync.c',
-        'src/core/support/sync_posix.c',
-        'src/core/support/sync_win32.c',
-        'src/core/support/thd.c',
-        'src/core/support/thd_posix.c',
-        'src/core/support/thd_win32.c',
-        'src/core/support/time.c',
-        'src/core/support/time_posix.c',
-        'src/core/support/time_precise.c',
-        'src/core/support/time_win32.c',
-        'src/core/support/tls_pthread.c',
-        'src/core/support/tmpfile_posix.c',
-        'src/core/support/tmpfile_win32.c',
-        'src/core/support/wrap_memcpy.c',
+        'src/core/lib/profiling/basic_timers.c',
+        'src/core/lib/profiling/stap_timers.c',
+        'src/core/lib/support/alloc.c',
+        'src/core/lib/support/avl.c',
+        'src/core/lib/support/backoff.c',
+        'src/core/lib/support/cmdline.c',
+        'src/core/lib/support/cpu_iphone.c',
+        'src/core/lib/support/cpu_linux.c',
+        'src/core/lib/support/cpu_posix.c',
+        'src/core/lib/support/cpu_windows.c',
+        'src/core/lib/support/env_linux.c',
+        'src/core/lib/support/env_posix.c',
+        'src/core/lib/support/env_win32.c',
+        'src/core/lib/support/histogram.c',
+        'src/core/lib/support/host_port.c',
+        'src/core/lib/support/load_file.c',
+        'src/core/lib/support/log.c',
+        'src/core/lib/support/log_android.c',
+        'src/core/lib/support/log_linux.c',
+        'src/core/lib/support/log_posix.c',
+        'src/core/lib/support/log_win32.c',
+        'src/core/lib/support/murmur_hash.c',
+        'src/core/lib/support/slice.c',
+        'src/core/lib/support/slice_buffer.c',
+        'src/core/lib/support/stack_lockfree.c',
+        'src/core/lib/support/string.c',
+        'src/core/lib/support/string_posix.c',
+        'src/core/lib/support/string_win32.c',
+        'src/core/lib/support/subprocess_posix.c',
+        'src/core/lib/support/subprocess_windows.c',
+        'src/core/lib/support/sync.c',
+        'src/core/lib/support/sync_posix.c',
+        'src/core/lib/support/sync_win32.c',
+        'src/core/lib/support/thd.c',
+        'src/core/lib/support/thd_posix.c',
+        'src/core/lib/support/thd_win32.c',
+        'src/core/lib/support/time.c',
+        'src/core/lib/support/time_posix.c',
+        'src/core/lib/support/time_precise.c',
+        'src/core/lib/support/time_win32.c',
+        'src/core/lib/support/tls_pthread.c',
+        'src/core/lib/support/tmpfile_posix.c',
+        'src/core/lib/support/tmpfile_win32.c',
+        'src/core/lib/support/wrap_memcpy.c',
       ],
       "conditions": [
         ['OS == "mac"', {
@@ -558,163 +558,164 @@
         'gpr',
       ],
       'sources': [
-        'src/core/census/grpc_context.c',
-        'src/core/census/grpc_filter.c',
-        'src/core/census/grpc_plugin.c',
-        'src/core/channel/channel_args.c',
-        'src/core/channel/channel_stack.c',
-        'src/core/channel/channel_stack_builder.c',
-        'src/core/channel/client_channel.c',
-        'src/core/channel/client_uchannel.c',
-        'src/core/channel/compress_filter.c',
-        'src/core/channel/connected_channel.c',
-        'src/core/channel/http_client_filter.c',
-        'src/core/channel/http_server_filter.c',
-        'src/core/channel/subchannel_call_holder.c',
-        'src/core/client_config/client_config.c',
-        'src/core/client_config/connector.c',
-        'src/core/client_config/default_initial_connect_string.c',
-        'src/core/client_config/initial_connect_string.c',
-        'src/core/client_config/lb_policies/load_balancer_api.c',
-        'src/core/client_config/lb_policies/pick_first.c',
-        'src/core/client_config/lb_policies/round_robin.c',
-        'src/core/client_config/lb_policy.c',
-        'src/core/client_config/lb_policy_factory.c',
-        'src/core/client_config/lb_policy_registry.c',
-        'src/core/client_config/resolver.c',
-        'src/core/client_config/resolver_factory.c',
-        'src/core/client_config/resolver_registry.c',
-        'src/core/client_config/resolvers/dns_resolver.c',
-        'src/core/client_config/resolvers/sockaddr_resolver.c',
-        'src/core/client_config/subchannel.c',
-        'src/core/client_config/subchannel_factory.c',
-        'src/core/client_config/subchannel_index.c',
-        'src/core/client_config/uri_parser.c',
-        'src/core/compression/compression_algorithm.c',
-        'src/core/compression/message_compress.c',
-        'src/core/debug/trace.c',
-        'src/core/httpcli/format_request.c',
-        'src/core/httpcli/httpcli.c',
-        'src/core/httpcli/parser.c',
-        'src/core/iomgr/closure.c',
-        'src/core/iomgr/endpoint.c',
-        'src/core/iomgr/endpoint_pair_posix.c',
-        'src/core/iomgr/endpoint_pair_windows.c',
-        'src/core/iomgr/ev_poll_and_epoll_posix.c',
-        'src/core/iomgr/ev_posix.c',
-        'src/core/iomgr/exec_ctx.c',
-        'src/core/iomgr/executor.c',
-        'src/core/iomgr/iocp_windows.c',
-        'src/core/iomgr/iomgr.c',
-        'src/core/iomgr/iomgr_posix.c',
-        'src/core/iomgr/iomgr_windows.c',
-        'src/core/iomgr/pollset_set_windows.c',
-        'src/core/iomgr/pollset_windows.c',
-        'src/core/iomgr/resolve_address_posix.c',
-        'src/core/iomgr/resolve_address_windows.c',
-        'src/core/iomgr/sockaddr_utils.c',
-        'src/core/iomgr/socket_utils_common_posix.c',
-        'src/core/iomgr/socket_utils_linux.c',
-        'src/core/iomgr/socket_utils_posix.c',
-        'src/core/iomgr/socket_windows.c',
-        'src/core/iomgr/tcp_client_posix.c',
-        'src/core/iomgr/tcp_client_windows.c',
-        'src/core/iomgr/tcp_posix.c',
-        'src/core/iomgr/tcp_server_posix.c',
-        'src/core/iomgr/tcp_server_windows.c',
-        'src/core/iomgr/tcp_windows.c',
-        'src/core/iomgr/time_averaged_stats.c',
-        'src/core/iomgr/timer.c',
-        'src/core/iomgr/timer_heap.c',
-        'src/core/iomgr/udp_server.c',
-        'src/core/iomgr/wakeup_fd_eventfd.c',
-        'src/core/iomgr/wakeup_fd_nospecial.c',
-        'src/core/iomgr/wakeup_fd_pipe.c',
-        'src/core/iomgr/wakeup_fd_posix.c',
-        'src/core/iomgr/workqueue_posix.c',
-        'src/core/iomgr/workqueue_windows.c',
-        'src/core/json/json.c',
-        'src/core/json/json_reader.c',
-        'src/core/json/json_string.c',
-        'src/core/json/json_writer.c',
-        'src/core/proto/grpc/lb/v0/load_balancer.pb.c',
-        'src/core/surface/alarm.c',
-        'src/core/surface/api_trace.c',
-        'src/core/surface/byte_buffer.c',
-        'src/core/surface/byte_buffer_reader.c',
-        'src/core/surface/call.c',
-        'src/core/surface/call_details.c',
-        'src/core/surface/call_log_batch.c',
-        'src/core/surface/channel.c',
-        'src/core/surface/channel_connectivity.c',
-        'src/core/surface/channel_create.c',
-        'src/core/surface/channel_init.c',
-        'src/core/surface/channel_ping.c',
-        'src/core/surface/channel_stack_type.c',
-        'src/core/surface/completion_queue.c',
-        'src/core/surface/event_string.c',
-        'src/core/surface/init.c',
-        'src/core/surface/lame_client.c',
-        'src/core/surface/metadata_array.c',
-        'src/core/surface/server.c',
-        'src/core/surface/server_chttp2.c',
-        'src/core/surface/validate_metadata.c',
-        'src/core/surface/version.c',
-        'src/core/transport/byte_stream.c',
-        'src/core/transport/chttp2/alpn.c',
-        'src/core/transport/chttp2/bin_encoder.c',
-        'src/core/transport/chttp2/frame_data.c',
-        'src/core/transport/chttp2/frame_goaway.c',
-        'src/core/transport/chttp2/frame_ping.c',
-        'src/core/transport/chttp2/frame_rst_stream.c',
-        'src/core/transport/chttp2/frame_settings.c',
-        'src/core/transport/chttp2/frame_window_update.c',
-        'src/core/transport/chttp2/hpack_encoder.c',
-        'src/core/transport/chttp2/hpack_parser.c',
-        'src/core/transport/chttp2/hpack_table.c',
-        'src/core/transport/chttp2/huffsyms.c',
-        'src/core/transport/chttp2/incoming_metadata.c',
-        'src/core/transport/chttp2/parsing.c',
-        'src/core/transport/chttp2/status_conversion.c',
-        'src/core/transport/chttp2/stream_lists.c',
-        'src/core/transport/chttp2/stream_map.c',
-        'src/core/transport/chttp2/timeout_encoding.c',
-        'src/core/transport/chttp2/varint.c',
-        'src/core/transport/chttp2/writing.c',
-        'src/core/transport/chttp2_transport.c',
-        'src/core/transport/connectivity_state.c',
-        'src/core/transport/metadata.c',
-        'src/core/transport/metadata_batch.c',
-        'src/core/transport/static_metadata.c',
-        'src/core/transport/transport.c',
-        'src/core/transport/transport_op_string.c',
-        'src/core/httpcli/httpcli_security_connector.c',
-        'src/core/security/b64.c',
-        'src/core/security/client_auth_filter.c',
-        'src/core/security/credentials.c',
-        'src/core/security/credentials_metadata.c',
-        'src/core/security/credentials_posix.c',
-        'src/core/security/credentials_win32.c',
-        'src/core/security/google_default_credentials.c',
-        'src/core/security/handshake.c',
-        'src/core/security/json_token.c',
-        'src/core/security/jwt_verifier.c',
-        'src/core/security/secure_endpoint.c',
-        'src/core/security/security_connector.c',
-        'src/core/security/security_context.c',
-        'src/core/security/server_auth_filter.c',
-        'src/core/security/server_secure_chttp2.c',
-        'src/core/surface/init_secure.c',
-        'src/core/surface/secure_channel_create.c',
-        'src/core/tsi/fake_transport_security.c',
-        'src/core/tsi/ssl_transport_security.c',
-        'src/core/tsi/transport_security.c',
-        'src/core/census/context.c',
-        'src/core/census/initialize.c',
-        'src/core/census/mlog.c',
-        'src/core/census/operation.c',
-        'src/core/census/placeholders.c',
-        'src/core/census/tracing.c',
+        'src/core/lib/census/grpc_context.c',
+        'src/core/lib/census/grpc_filter.c',
+        'src/core/lib/census/grpc_plugin.c',
+        'src/core/lib/channel/channel_args.c',
+        'src/core/lib/channel/channel_stack.c',
+        'src/core/lib/channel/channel_stack_builder.c',
+        'src/core/lib/channel/client_channel.c',
+        'src/core/lib/channel/compress_filter.c',
+        'src/core/lib/channel/connected_channel.c',
+        'src/core/lib/channel/http_client_filter.c',
+        'src/core/lib/channel/http_server_filter.c',
+        'src/core/lib/channel/subchannel_call_holder.c',
+        'src/core/lib/client_config/client_config.c',
+        'src/core/lib/client_config/connector.c',
+        'src/core/lib/client_config/default_initial_connect_string.c',
+        'src/core/lib/client_config/initial_connect_string.c',
+        'src/core/lib/client_config/lb_policies/load_balancer_api.c',
+        'src/core/lib/client_config/lb_policies/pick_first.c',
+        'src/core/lib/client_config/lb_policies/round_robin.c',
+        'src/core/lib/client_config/lb_policy.c',
+        'src/core/lib/client_config/lb_policy_factory.c',
+        'src/core/lib/client_config/lb_policy_registry.c',
+        'src/core/lib/client_config/resolver.c',
+        'src/core/lib/client_config/resolver_factory.c',
+        'src/core/lib/client_config/resolver_registry.c',
+        'src/core/lib/client_config/resolvers/dns_resolver.c',
+        'src/core/lib/client_config/resolvers/sockaddr_resolver.c',
+        'src/core/lib/client_config/subchannel.c',
+        'src/core/lib/client_config/subchannel_factory.c',
+        'src/core/lib/client_config/subchannel_index.c',
+        'src/core/lib/client_config/uri_parser.c',
+        'src/core/lib/compression/compression_algorithm.c',
+        'src/core/lib/compression/message_compress.c',
+        'src/core/lib/debug/trace.c',
+        'src/core/lib/http/format_request.c',
+        'src/core/lib/http/httpcli.c',
+        'src/core/lib/http/parser.c',
+        'src/core/lib/iomgr/closure.c',
+        'src/core/lib/iomgr/endpoint.c',
+        'src/core/lib/iomgr/endpoint_pair_posix.c',
+        'src/core/lib/iomgr/endpoint_pair_windows.c',
+        'src/core/lib/iomgr/ev_poll_and_epoll_posix.c',
+        'src/core/lib/iomgr/ev_posix.c',
+        'src/core/lib/iomgr/exec_ctx.c',
+        'src/core/lib/iomgr/executor.c',
+        'src/core/lib/iomgr/iocp_windows.c',
+        'src/core/lib/iomgr/iomgr.c',
+        'src/core/lib/iomgr/iomgr_posix.c',
+        'src/core/lib/iomgr/iomgr_windows.c',
+        'src/core/lib/iomgr/pollset_set_windows.c',
+        'src/core/lib/iomgr/pollset_windows.c',
+        'src/core/lib/iomgr/resolve_address_posix.c',
+        'src/core/lib/iomgr/resolve_address_windows.c',
+        'src/core/lib/iomgr/sockaddr_utils.c',
+        'src/core/lib/iomgr/socket_utils_common_posix.c',
+        'src/core/lib/iomgr/socket_utils_linux.c',
+        'src/core/lib/iomgr/socket_utils_posix.c',
+        'src/core/lib/iomgr/socket_windows.c',
+        'src/core/lib/iomgr/tcp_client_posix.c',
+        'src/core/lib/iomgr/tcp_client_windows.c',
+        'src/core/lib/iomgr/tcp_posix.c',
+        'src/core/lib/iomgr/tcp_server_posix.c',
+        'src/core/lib/iomgr/tcp_server_windows.c',
+        'src/core/lib/iomgr/tcp_windows.c',
+        'src/core/lib/iomgr/time_averaged_stats.c',
+        'src/core/lib/iomgr/timer.c',
+        'src/core/lib/iomgr/timer_heap.c',
+        'src/core/lib/iomgr/udp_server.c',
+        'src/core/lib/iomgr/unix_sockets_posix.c',
+        'src/core/lib/iomgr/unix_sockets_posix_noop.c',
+        'src/core/lib/iomgr/wakeup_fd_eventfd.c',
+        'src/core/lib/iomgr/wakeup_fd_nospecial.c',
+        'src/core/lib/iomgr/wakeup_fd_pipe.c',
+        'src/core/lib/iomgr/wakeup_fd_posix.c',
+        'src/core/lib/iomgr/workqueue_posix.c',
+        'src/core/lib/iomgr/workqueue_windows.c',
+        'src/core/lib/json/json.c',
+        'src/core/lib/json/json_reader.c',
+        'src/core/lib/json/json_string.c',
+        'src/core/lib/json/json_writer.c',
+        'src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c',
+        'src/core/lib/surface/alarm.c',
+        'src/core/lib/surface/api_trace.c',
+        'src/core/lib/surface/byte_buffer.c',
+        'src/core/lib/surface/byte_buffer_reader.c',
+        'src/core/lib/surface/call.c',
+        'src/core/lib/surface/call_details.c',
+        'src/core/lib/surface/call_log_batch.c',
+        'src/core/lib/surface/channel.c',
+        'src/core/lib/surface/channel_connectivity.c',
+        'src/core/lib/surface/channel_create.c',
+        'src/core/lib/surface/channel_init.c',
+        'src/core/lib/surface/channel_ping.c',
+        'src/core/lib/surface/channel_stack_type.c',
+        'src/core/lib/surface/completion_queue.c',
+        'src/core/lib/surface/event_string.c',
+        'src/core/lib/surface/init.c',
+        'src/core/lib/surface/lame_client.c',
+        'src/core/lib/surface/metadata_array.c',
+        'src/core/lib/surface/server.c',
+        'src/core/lib/surface/server_chttp2.c',
+        'src/core/lib/surface/validate_metadata.c',
+        'src/core/lib/surface/version.c',
+        'src/core/lib/transport/byte_stream.c',
+        'src/core/lib/transport/chttp2/alpn.c',
+        'src/core/lib/transport/chttp2/bin_encoder.c',
+        'src/core/lib/transport/chttp2/frame_data.c',
+        'src/core/lib/transport/chttp2/frame_goaway.c',
+        'src/core/lib/transport/chttp2/frame_ping.c',
+        'src/core/lib/transport/chttp2/frame_rst_stream.c',
+        'src/core/lib/transport/chttp2/frame_settings.c',
+        'src/core/lib/transport/chttp2/frame_window_update.c',
+        'src/core/lib/transport/chttp2/hpack_encoder.c',
+        'src/core/lib/transport/chttp2/hpack_parser.c',
+        'src/core/lib/transport/chttp2/hpack_table.c',
+        'src/core/lib/transport/chttp2/huffsyms.c',
+        'src/core/lib/transport/chttp2/incoming_metadata.c',
+        'src/core/lib/transport/chttp2/parsing.c',
+        'src/core/lib/transport/chttp2/status_conversion.c',
+        'src/core/lib/transport/chttp2/stream_lists.c',
+        'src/core/lib/transport/chttp2/stream_map.c',
+        'src/core/lib/transport/chttp2/timeout_encoding.c',
+        'src/core/lib/transport/chttp2/varint.c',
+        'src/core/lib/transport/chttp2/writing.c',
+        'src/core/lib/transport/chttp2_transport.c',
+        'src/core/lib/transport/connectivity_state.c',
+        'src/core/lib/transport/metadata.c',
+        'src/core/lib/transport/metadata_batch.c',
+        'src/core/lib/transport/static_metadata.c',
+        'src/core/lib/transport/transport.c',
+        'src/core/lib/transport/transport_op_string.c',
+        'src/core/lib/http/httpcli_security_connector.c',
+        'src/core/lib/security/b64.c',
+        'src/core/lib/security/client_auth_filter.c',
+        'src/core/lib/security/credentials.c',
+        'src/core/lib/security/credentials_metadata.c',
+        'src/core/lib/security/credentials_posix.c',
+        'src/core/lib/security/credentials_win32.c',
+        'src/core/lib/security/google_default_credentials.c',
+        'src/core/lib/security/handshake.c',
+        'src/core/lib/security/json_token.c',
+        'src/core/lib/security/jwt_verifier.c',
+        'src/core/lib/security/secure_endpoint.c',
+        'src/core/lib/security/security_connector.c',
+        'src/core/lib/security/security_context.c',
+        'src/core/lib/security/server_auth_filter.c',
+        'src/core/lib/security/server_secure_chttp2.c',
+        'src/core/lib/surface/init_secure.c',
+        'src/core/lib/surface/secure_channel_create.c',
+        'src/core/lib/tsi/fake_transport_security.c',
+        'src/core/lib/tsi/ssl_transport_security.c',
+        'src/core/lib/tsi/transport_security.c',
+        'src/core/lib/census/context.c',
+        'src/core/lib/census/initialize.c',
+        'src/core/lib/census/mlog.c',
+        'src/core/lib/census/operation.c',
+        'src/core/lib/census/placeholders.c',
+        'src/core/lib/census/tracing.c',
         'third_party/nanopb/pb_common.c',
         'third_party/nanopb/pb_decode.c',
         'third_party/nanopb/pb_encode.c',
diff --git a/build.yaml b/build.yaml
index de65ddb..a90a2a4 100644
--- a/build.yaml
+++ b/build.yaml
@@ -13,16 +13,16 @@
   public_headers:
   - include/grpc/census.h
   headers:
-  - src/core/census/aggregation.h
-  - src/core/census/mlog.h
-  - src/core/census/rpc_metric_id.h
+  - src/core/lib/census/aggregation.h
+  - src/core/lib/census/mlog.h
+  - src/core/lib/census/rpc_metric_id.h
   src:
-  - src/core/census/context.c
-  - src/core/census/initialize.c
-  - src/core/census/mlog.c
-  - src/core/census/operation.c
-  - src/core/census/placeholders.c
-  - src/core/census/tracing.c
+  - src/core/lib/census/context.c
+  - src/core/lib/census/initialize.c
+  - src/core/lib/census/mlog.c
+  - src/core/lib/census/operation.c
+  - src/core/lib/census/placeholders.c
+  - src/core/lib/census/tracing.c
 - name: gpr
   public_headers:
   - include/grpc/support/alloc.h
@@ -54,63 +54,63 @@
   - include/grpc/support/tls_pthread.h
   - include/grpc/support/useful.h
   headers:
-  - src/core/profiling/timers.h
-  - src/core/support/backoff.h
-  - src/core/support/block_annotate.h
-  - src/core/support/env.h
-  - src/core/support/load_file.h
-  - src/core/support/murmur_hash.h
-  - src/core/support/stack_lockfree.h
-  - src/core/support/string.h
-  - src/core/support/string_win32.h
-  - src/core/support/thd_internal.h
-  - src/core/support/time_precise.h
-  - src/core/support/tmpfile.h
+  - src/core/lib/profiling/timers.h
+  - src/core/lib/support/backoff.h
+  - src/core/lib/support/block_annotate.h
+  - src/core/lib/support/env.h
+  - src/core/lib/support/load_file.h
+  - src/core/lib/support/murmur_hash.h
+  - src/core/lib/support/stack_lockfree.h
+  - src/core/lib/support/string.h
+  - src/core/lib/support/string_win32.h
+  - src/core/lib/support/thd_internal.h
+  - src/core/lib/support/time_precise.h
+  - src/core/lib/support/tmpfile.h
   src:
-  - src/core/profiling/basic_timers.c
-  - src/core/profiling/stap_timers.c
-  - src/core/support/alloc.c
-  - src/core/support/avl.c
-  - src/core/support/backoff.c
-  - src/core/support/cmdline.c
-  - src/core/support/cpu_iphone.c
-  - src/core/support/cpu_linux.c
-  - src/core/support/cpu_posix.c
-  - src/core/support/cpu_windows.c
-  - src/core/support/env_linux.c
-  - src/core/support/env_posix.c
-  - src/core/support/env_win32.c
-  - src/core/support/histogram.c
-  - src/core/support/host_port.c
-  - src/core/support/load_file.c
-  - src/core/support/log.c
-  - src/core/support/log_android.c
-  - src/core/support/log_linux.c
-  - src/core/support/log_posix.c
-  - src/core/support/log_win32.c
-  - src/core/support/murmur_hash.c
-  - src/core/support/slice.c
-  - src/core/support/slice_buffer.c
-  - src/core/support/stack_lockfree.c
-  - src/core/support/string.c
-  - src/core/support/string_posix.c
-  - src/core/support/string_win32.c
-  - src/core/support/subprocess_posix.c
-  - src/core/support/subprocess_windows.c
-  - src/core/support/sync.c
-  - src/core/support/sync_posix.c
-  - src/core/support/sync_win32.c
-  - src/core/support/thd.c
-  - src/core/support/thd_posix.c
-  - src/core/support/thd_win32.c
-  - src/core/support/time.c
-  - src/core/support/time_posix.c
-  - src/core/support/time_precise.c
-  - src/core/support/time_win32.c
-  - src/core/support/tls_pthread.c
-  - src/core/support/tmpfile_posix.c
-  - src/core/support/tmpfile_win32.c
-  - src/core/support/wrap_memcpy.c
+  - src/core/lib/profiling/basic_timers.c
+  - src/core/lib/profiling/stap_timers.c
+  - src/core/lib/support/alloc.c
+  - src/core/lib/support/avl.c
+  - src/core/lib/support/backoff.c
+  - src/core/lib/support/cmdline.c
+  - src/core/lib/support/cpu_iphone.c
+  - src/core/lib/support/cpu_linux.c
+  - src/core/lib/support/cpu_posix.c
+  - src/core/lib/support/cpu_windows.c
+  - src/core/lib/support/env_linux.c
+  - src/core/lib/support/env_posix.c
+  - src/core/lib/support/env_win32.c
+  - src/core/lib/support/histogram.c
+  - src/core/lib/support/host_port.c
+  - src/core/lib/support/load_file.c
+  - src/core/lib/support/log.c
+  - src/core/lib/support/log_android.c
+  - src/core/lib/support/log_linux.c
+  - src/core/lib/support/log_posix.c
+  - src/core/lib/support/log_win32.c
+  - src/core/lib/support/murmur_hash.c
+  - src/core/lib/support/slice.c
+  - src/core/lib/support/slice_buffer.c
+  - src/core/lib/support/stack_lockfree.c
+  - src/core/lib/support/string.c
+  - src/core/lib/support/string_posix.c
+  - src/core/lib/support/string_win32.c
+  - src/core/lib/support/subprocess_posix.c
+  - src/core/lib/support/subprocess_windows.c
+  - src/core/lib/support/sync.c
+  - src/core/lib/support/sync_posix.c
+  - src/core/lib/support/sync_win32.c
+  - src/core/lib/support/thd.c
+  - src/core/lib/support/thd_posix.c
+  - src/core/lib/support/thd_win32.c
+  - src/core/lib/support/time.c
+  - src/core/lib/support/time_posix.c
+  - src/core/lib/support/time_precise.c
+  - src/core/lib/support/time_win32.c
+  - src/core/lib/support/tls_pthread.c
+  - src/core/lib/support/tmpfile_posix.c
+  - src/core/lib/support/tmpfile_win32.c
+  - src/core/lib/support/wrap_memcpy.c
 - name: gpr_codegen
   public_headers:
   - include/grpc/impl/codegen/alloc.h
@@ -247,256 +247,259 @@
   - include/grpc/grpc.h
   - include/grpc/status.h
   headers:
-  - src/core/census/grpc_filter.h
-  - src/core/census/grpc_plugin.h
-  - src/core/channel/channel_args.h
-  - src/core/channel/channel_stack.h
-  - src/core/channel/channel_stack_builder.h
-  - src/core/channel/client_channel.h
-  - src/core/channel/client_uchannel.h
-  - src/core/channel/compress_filter.h
-  - src/core/channel/connected_channel.h
-  - src/core/channel/context.h
-  - src/core/channel/http_client_filter.h
-  - src/core/channel/http_server_filter.h
-  - src/core/channel/subchannel_call_holder.h
-  - src/core/client_config/client_config.h
-  - src/core/client_config/connector.h
-  - src/core/client_config/initial_connect_string.h
-  - src/core/client_config/lb_policies/load_balancer_api.h
-  - src/core/client_config/lb_policies/pick_first.h
-  - src/core/client_config/lb_policies/round_robin.h
-  - src/core/client_config/lb_policy.h
-  - src/core/client_config/lb_policy_factory.h
-  - src/core/client_config/lb_policy_registry.h
-  - src/core/client_config/resolver.h
-  - src/core/client_config/resolver_factory.h
-  - src/core/client_config/resolver_registry.h
-  - src/core/client_config/resolvers/dns_resolver.h
-  - src/core/client_config/resolvers/sockaddr_resolver.h
-  - src/core/client_config/subchannel.h
-  - src/core/client_config/subchannel_factory.h
-  - src/core/client_config/subchannel_index.h
-  - src/core/client_config/uri_parser.h
-  - src/core/compression/algorithm_metadata.h
-  - src/core/compression/message_compress.h
-  - src/core/debug/trace.h
-  - src/core/httpcli/format_request.h
-  - src/core/httpcli/httpcli.h
-  - src/core/httpcli/parser.h
-  - src/core/iomgr/closure.h
-  - src/core/iomgr/endpoint.h
-  - src/core/iomgr/endpoint_pair.h
-  - src/core/iomgr/ev_poll_and_epoll_posix.h
-  - src/core/iomgr/ev_posix.h
-  - src/core/iomgr/exec_ctx.h
-  - src/core/iomgr/executor.h
-  - src/core/iomgr/iocp_windows.h
-  - src/core/iomgr/iomgr.h
-  - src/core/iomgr/iomgr_internal.h
-  - src/core/iomgr/iomgr_posix.h
-  - src/core/iomgr/pollset.h
-  - src/core/iomgr/pollset_set.h
-  - src/core/iomgr/pollset_set_windows.h
-  - src/core/iomgr/pollset_windows.h
-  - src/core/iomgr/resolve_address.h
-  - src/core/iomgr/sockaddr.h
-  - src/core/iomgr/sockaddr_posix.h
-  - src/core/iomgr/sockaddr_utils.h
-  - src/core/iomgr/sockaddr_win32.h
-  - src/core/iomgr/socket_utils_posix.h
-  - src/core/iomgr/socket_windows.h
-  - src/core/iomgr/tcp_client.h
-  - src/core/iomgr/tcp_posix.h
-  - src/core/iomgr/tcp_server.h
-  - src/core/iomgr/tcp_windows.h
-  - src/core/iomgr/time_averaged_stats.h
-  - src/core/iomgr/timer.h
-  - src/core/iomgr/timer_heap.h
-  - src/core/iomgr/udp_server.h
-  - src/core/iomgr/wakeup_fd_pipe.h
-  - src/core/iomgr/wakeup_fd_posix.h
-  - src/core/iomgr/workqueue.h
-  - src/core/iomgr/workqueue_posix.h
-  - src/core/iomgr/workqueue_windows.h
-  - src/core/json/json.h
-  - src/core/json/json_common.h
-  - src/core/json/json_reader.h
-  - src/core/json/json_writer.h
-  - src/core/proto/grpc/lb/v0/load_balancer.pb.h
-  - src/core/statistics/census_interface.h
-  - src/core/statistics/census_rpc_stats.h
-  - src/core/surface/api_trace.h
-  - src/core/surface/call.h
-  - src/core/surface/call_test_only.h
-  - src/core/surface/channel.h
-  - src/core/surface/channel_init.h
-  - src/core/surface/channel_stack_type.h
-  - src/core/surface/completion_queue.h
-  - src/core/surface/event_string.h
-  - src/core/surface/init.h
-  - src/core/surface/lame_client.h
-  - src/core/surface/server.h
-  - src/core/surface/surface_trace.h
-  - src/core/transport/byte_stream.h
-  - src/core/transport/chttp2/alpn.h
-  - src/core/transport/chttp2/bin_encoder.h
-  - src/core/transport/chttp2/frame.h
-  - src/core/transport/chttp2/frame_data.h
-  - src/core/transport/chttp2/frame_goaway.h
-  - src/core/transport/chttp2/frame_ping.h
-  - src/core/transport/chttp2/frame_rst_stream.h
-  - src/core/transport/chttp2/frame_settings.h
-  - src/core/transport/chttp2/frame_window_update.h
-  - src/core/transport/chttp2/hpack_encoder.h
-  - src/core/transport/chttp2/hpack_parser.h
-  - src/core/transport/chttp2/hpack_table.h
-  - src/core/transport/chttp2/http2_errors.h
-  - src/core/transport/chttp2/huffsyms.h
-  - src/core/transport/chttp2/incoming_metadata.h
-  - src/core/transport/chttp2/internal.h
-  - src/core/transport/chttp2/status_conversion.h
-  - src/core/transport/chttp2/stream_map.h
-  - src/core/transport/chttp2/timeout_encoding.h
-  - src/core/transport/chttp2/varint.h
-  - src/core/transport/chttp2_transport.h
-  - src/core/transport/connectivity_state.h
-  - src/core/transport/metadata.h
-  - src/core/transport/metadata_batch.h
-  - src/core/transport/static_metadata.h
-  - src/core/transport/transport.h
-  - src/core/transport/transport_impl.h
+  - src/core/lib/census/grpc_filter.h
+  - src/core/lib/census/grpc_plugin.h
+  - src/core/lib/channel/channel_args.h
+  - src/core/lib/channel/channel_stack.h
+  - src/core/lib/channel/channel_stack_builder.h
+  - src/core/lib/channel/client_channel.h
+  - src/core/lib/channel/compress_filter.h
+  - src/core/lib/channel/connected_channel.h
+  - src/core/lib/channel/context.h
+  - src/core/lib/channel/http_client_filter.h
+  - src/core/lib/channel/http_server_filter.h
+  - src/core/lib/channel/subchannel_call_holder.h
+  - src/core/lib/client_config/client_config.h
+  - src/core/lib/client_config/connector.h
+  - src/core/lib/client_config/initial_connect_string.h
+  - src/core/lib/client_config/lb_policies/load_balancer_api.h
+  - src/core/lib/client_config/lb_policies/pick_first.h
+  - src/core/lib/client_config/lb_policies/round_robin.h
+  - src/core/lib/client_config/lb_policy.h
+  - src/core/lib/client_config/lb_policy_factory.h
+  - src/core/lib/client_config/lb_policy_registry.h
+  - src/core/lib/client_config/resolver.h
+  - src/core/lib/client_config/resolver_factory.h
+  - src/core/lib/client_config/resolver_registry.h
+  - src/core/lib/client_config/resolvers/dns_resolver.h
+  - src/core/lib/client_config/resolvers/sockaddr_resolver.h
+  - src/core/lib/client_config/subchannel.h
+  - src/core/lib/client_config/subchannel_factory.h
+  - src/core/lib/client_config/subchannel_index.h
+  - src/core/lib/client_config/uri_parser.h
+  - src/core/lib/compression/algorithm_metadata.h
+  - src/core/lib/compression/message_compress.h
+  - src/core/lib/debug/trace.h
+  - src/core/lib/http/format_request.h
+  - src/core/lib/http/httpcli.h
+  - src/core/lib/http/parser.h
+  - src/core/lib/iomgr/closure.h
+  - src/core/lib/iomgr/endpoint.h
+  - src/core/lib/iomgr/endpoint_pair.h
+  - src/core/lib/iomgr/ev_poll_and_epoll_posix.h
+  - src/core/lib/iomgr/ev_posix.h
+  - src/core/lib/iomgr/exec_ctx.h
+  - src/core/lib/iomgr/executor.h
+  - src/core/lib/iomgr/iocp_windows.h
+  - src/core/lib/iomgr/iomgr.h
+  - src/core/lib/iomgr/iomgr_internal.h
+  - src/core/lib/iomgr/iomgr_posix.h
+  - src/core/lib/iomgr/pollset.h
+  - src/core/lib/iomgr/pollset_posix.h
+  - src/core/lib/iomgr/pollset_set.h
+  - src/core/lib/iomgr/pollset_set_posix.h
+  - src/core/lib/iomgr/pollset_set_windows.h
+  - src/core/lib/iomgr/pollset_windows.h
+  - src/core/lib/iomgr/resolve_address.h
+  - src/core/lib/iomgr/sockaddr.h
+  - src/core/lib/iomgr/sockaddr_posix.h
+  - src/core/lib/iomgr/sockaddr_utils.h
+  - src/core/lib/iomgr/sockaddr_win32.h
+  - src/core/lib/iomgr/socket_utils_posix.h
+  - src/core/lib/iomgr/socket_windows.h
+  - src/core/lib/iomgr/tcp_client.h
+  - src/core/lib/iomgr/tcp_posix.h
+  - src/core/lib/iomgr/tcp_server.h
+  - src/core/lib/iomgr/tcp_windows.h
+  - src/core/lib/iomgr/time_averaged_stats.h
+  - src/core/lib/iomgr/timer.h
+  - src/core/lib/iomgr/timer_heap.h
+  - src/core/lib/iomgr/udp_server.h
+  - src/core/lib/iomgr/unix_sockets_posix.h
+  - src/core/lib/iomgr/wakeup_fd_pipe.h
+  - src/core/lib/iomgr/wakeup_fd_posix.h
+  - src/core/lib/iomgr/workqueue.h
+  - src/core/lib/iomgr/workqueue_posix.h
+  - src/core/lib/iomgr/workqueue_windows.h
+  - src/core/lib/json/json.h
+  - src/core/lib/json/json_common.h
+  - src/core/lib/json/json_reader.h
+  - src/core/lib/json/json_writer.h
+  - src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h
+  - src/core/lib/statistics/census_interface.h
+  - src/core/lib/statistics/census_rpc_stats.h
+  - src/core/lib/surface/api_trace.h
+  - src/core/lib/surface/call.h
+  - src/core/lib/surface/call_test_only.h
+  - src/core/lib/surface/channel.h
+  - src/core/lib/surface/channel_init.h
+  - src/core/lib/surface/channel_stack_type.h
+  - src/core/lib/surface/completion_queue.h
+  - src/core/lib/surface/event_string.h
+  - src/core/lib/surface/init.h
+  - src/core/lib/surface/lame_client.h
+  - src/core/lib/surface/server.h
+  - src/core/lib/surface/surface_trace.h
+  - src/core/lib/transport/byte_stream.h
+  - src/core/lib/transport/chttp2/alpn.h
+  - src/core/lib/transport/chttp2/bin_encoder.h
+  - src/core/lib/transport/chttp2/frame.h
+  - src/core/lib/transport/chttp2/frame_data.h
+  - src/core/lib/transport/chttp2/frame_goaway.h
+  - src/core/lib/transport/chttp2/frame_ping.h
+  - src/core/lib/transport/chttp2/frame_rst_stream.h
+  - src/core/lib/transport/chttp2/frame_settings.h
+  - src/core/lib/transport/chttp2/frame_window_update.h
+  - src/core/lib/transport/chttp2/hpack_encoder.h
+  - src/core/lib/transport/chttp2/hpack_parser.h
+  - src/core/lib/transport/chttp2/hpack_table.h
+  - src/core/lib/transport/chttp2/http2_errors.h
+  - src/core/lib/transport/chttp2/huffsyms.h
+  - src/core/lib/transport/chttp2/incoming_metadata.h
+  - src/core/lib/transport/chttp2/internal.h
+  - src/core/lib/transport/chttp2/status_conversion.h
+  - src/core/lib/transport/chttp2/stream_map.h
+  - src/core/lib/transport/chttp2/timeout_encoding.h
+  - src/core/lib/transport/chttp2/varint.h
+  - src/core/lib/transport/chttp2_transport.h
+  - src/core/lib/transport/connectivity_state.h
+  - src/core/lib/transport/metadata.h
+  - src/core/lib/transport/metadata_batch.h
+  - src/core/lib/transport/static_metadata.h
+  - src/core/lib/transport/transport.h
+  - src/core/lib/transport/transport_impl.h
   src:
-  - src/core/census/grpc_context.c
-  - src/core/census/grpc_filter.c
-  - src/core/census/grpc_plugin.c
-  - src/core/channel/channel_args.c
-  - src/core/channel/channel_stack.c
-  - src/core/channel/channel_stack_builder.c
-  - src/core/channel/client_channel.c
-  - src/core/channel/client_uchannel.c
-  - src/core/channel/compress_filter.c
-  - src/core/channel/connected_channel.c
-  - src/core/channel/http_client_filter.c
-  - src/core/channel/http_server_filter.c
-  - src/core/channel/subchannel_call_holder.c
-  - src/core/client_config/client_config.c
-  - src/core/client_config/connector.c
-  - src/core/client_config/default_initial_connect_string.c
-  - src/core/client_config/initial_connect_string.c
-  - src/core/client_config/lb_policies/load_balancer_api.c
-  - src/core/client_config/lb_policies/pick_first.c
-  - src/core/client_config/lb_policies/round_robin.c
-  - src/core/client_config/lb_policy.c
-  - src/core/client_config/lb_policy_factory.c
-  - src/core/client_config/lb_policy_registry.c
-  - src/core/client_config/resolver.c
-  - src/core/client_config/resolver_factory.c
-  - src/core/client_config/resolver_registry.c
-  - src/core/client_config/resolvers/dns_resolver.c
-  - src/core/client_config/resolvers/sockaddr_resolver.c
-  - src/core/client_config/subchannel.c
-  - src/core/client_config/subchannel_factory.c
-  - src/core/client_config/subchannel_index.c
-  - src/core/client_config/uri_parser.c
-  - src/core/compression/compression_algorithm.c
-  - src/core/compression/message_compress.c
-  - src/core/debug/trace.c
-  - src/core/httpcli/format_request.c
-  - src/core/httpcli/httpcli.c
-  - src/core/httpcli/parser.c
-  - src/core/iomgr/closure.c
-  - src/core/iomgr/endpoint.c
-  - src/core/iomgr/endpoint_pair_posix.c
-  - src/core/iomgr/endpoint_pair_windows.c
-  - src/core/iomgr/ev_poll_and_epoll_posix.c
-  - src/core/iomgr/ev_posix.c
-  - src/core/iomgr/exec_ctx.c
-  - src/core/iomgr/executor.c
-  - src/core/iomgr/iocp_windows.c
-  - src/core/iomgr/iomgr.c
-  - src/core/iomgr/iomgr_posix.c
-  - src/core/iomgr/iomgr_windows.c
-  - src/core/iomgr/pollset_set_windows.c
-  - src/core/iomgr/pollset_windows.c
-  - src/core/iomgr/resolve_address_posix.c
-  - src/core/iomgr/resolve_address_windows.c
-  - src/core/iomgr/sockaddr_utils.c
-  - src/core/iomgr/socket_utils_common_posix.c
-  - src/core/iomgr/socket_utils_linux.c
-  - src/core/iomgr/socket_utils_posix.c
-  - src/core/iomgr/socket_windows.c
-  - src/core/iomgr/tcp_client_posix.c
-  - src/core/iomgr/tcp_client_windows.c
-  - src/core/iomgr/tcp_posix.c
-  - src/core/iomgr/tcp_server_posix.c
-  - src/core/iomgr/tcp_server_windows.c
-  - src/core/iomgr/tcp_windows.c
-  - src/core/iomgr/time_averaged_stats.c
-  - src/core/iomgr/timer.c
-  - src/core/iomgr/timer_heap.c
-  - src/core/iomgr/udp_server.c
-  - src/core/iomgr/wakeup_fd_eventfd.c
-  - src/core/iomgr/wakeup_fd_nospecial.c
-  - src/core/iomgr/wakeup_fd_pipe.c
-  - src/core/iomgr/wakeup_fd_posix.c
-  - src/core/iomgr/workqueue_posix.c
-  - src/core/iomgr/workqueue_windows.c
-  - src/core/json/json.c
-  - src/core/json/json_reader.c
-  - src/core/json/json_string.c
-  - src/core/json/json_writer.c
-  - src/core/proto/grpc/lb/v0/load_balancer.pb.c
-  - src/core/surface/alarm.c
-  - src/core/surface/api_trace.c
-  - src/core/surface/byte_buffer.c
-  - src/core/surface/byte_buffer_reader.c
-  - src/core/surface/call.c
-  - src/core/surface/call_details.c
-  - src/core/surface/call_log_batch.c
-  - src/core/surface/channel.c
-  - src/core/surface/channel_connectivity.c
-  - src/core/surface/channel_create.c
-  - src/core/surface/channel_init.c
-  - src/core/surface/channel_ping.c
-  - src/core/surface/channel_stack_type.c
-  - src/core/surface/completion_queue.c
-  - src/core/surface/event_string.c
-  - src/core/surface/init.c
-  - src/core/surface/lame_client.c
-  - src/core/surface/metadata_array.c
-  - src/core/surface/server.c
-  - src/core/surface/server_chttp2.c
-  - src/core/surface/validate_metadata.c
-  - src/core/surface/version.c
-  - src/core/transport/byte_stream.c
-  - src/core/transport/chttp2/alpn.c
-  - src/core/transport/chttp2/bin_encoder.c
-  - src/core/transport/chttp2/frame_data.c
-  - src/core/transport/chttp2/frame_goaway.c
-  - src/core/transport/chttp2/frame_ping.c
-  - src/core/transport/chttp2/frame_rst_stream.c
-  - src/core/transport/chttp2/frame_settings.c
-  - src/core/transport/chttp2/frame_window_update.c
-  - src/core/transport/chttp2/hpack_encoder.c
-  - src/core/transport/chttp2/hpack_parser.c
-  - src/core/transport/chttp2/hpack_table.c
-  - src/core/transport/chttp2/huffsyms.c
-  - src/core/transport/chttp2/incoming_metadata.c
-  - src/core/transport/chttp2/parsing.c
-  - src/core/transport/chttp2/status_conversion.c
-  - src/core/transport/chttp2/stream_lists.c
-  - src/core/transport/chttp2/stream_map.c
-  - src/core/transport/chttp2/timeout_encoding.c
-  - src/core/transport/chttp2/varint.c
-  - src/core/transport/chttp2/writing.c
-  - src/core/transport/chttp2_transport.c
-  - src/core/transport/connectivity_state.c
-  - src/core/transport/metadata.c
-  - src/core/transport/metadata_batch.c
-  - src/core/transport/static_metadata.c
-  - src/core/transport/transport.c
-  - src/core/transport/transport_op_string.c
+  - src/core/lib/census/grpc_context.c
+  - src/core/lib/census/grpc_filter.c
+  - src/core/lib/census/grpc_plugin.c
+  - src/core/lib/channel/channel_args.c
+  - src/core/lib/channel/channel_stack.c
+  - src/core/lib/channel/channel_stack_builder.c
+  - src/core/lib/channel/client_channel.c
+  - src/core/lib/channel/compress_filter.c
+  - src/core/lib/channel/connected_channel.c
+  - src/core/lib/channel/http_client_filter.c
+  - src/core/lib/channel/http_server_filter.c
+  - src/core/lib/channel/subchannel_call_holder.c
+  - src/core/lib/client_config/client_config.c
+  - src/core/lib/client_config/connector.c
+  - src/core/lib/client_config/default_initial_connect_string.c
+  - src/core/lib/client_config/initial_connect_string.c
+  - src/core/lib/client_config/lb_policies/load_balancer_api.c
+  - src/core/lib/client_config/lb_policies/pick_first.c
+  - src/core/lib/client_config/lb_policies/round_robin.c
+  - src/core/lib/client_config/lb_policy.c
+  - src/core/lib/client_config/lb_policy_factory.c
+  - src/core/lib/client_config/lb_policy_registry.c
+  - src/core/lib/client_config/resolver.c
+  - src/core/lib/client_config/resolver_factory.c
+  - src/core/lib/client_config/resolver_registry.c
+  - src/core/lib/client_config/resolvers/dns_resolver.c
+  - src/core/lib/client_config/resolvers/sockaddr_resolver.c
+  - src/core/lib/client_config/subchannel.c
+  - src/core/lib/client_config/subchannel_factory.c
+  - src/core/lib/client_config/subchannel_index.c
+  - src/core/lib/client_config/uri_parser.c
+  - src/core/lib/compression/compression_algorithm.c
+  - src/core/lib/compression/message_compress.c
+  - src/core/lib/debug/trace.c
+  - src/core/lib/http/format_request.c
+  - src/core/lib/http/httpcli.c
+  - src/core/lib/http/parser.c
+  - src/core/lib/iomgr/closure.c
+  - src/core/lib/iomgr/endpoint.c
+  - src/core/lib/iomgr/endpoint_pair_posix.c
+  - src/core/lib/iomgr/endpoint_pair_windows.c
+  - src/core/lib/iomgr/ev_poll_and_epoll_posix.c
+  - src/core/lib/iomgr/ev_posix.c
+  - src/core/lib/iomgr/exec_ctx.c
+  - src/core/lib/iomgr/executor.c
+  - src/core/lib/iomgr/iocp_windows.c
+  - src/core/lib/iomgr/iomgr.c
+  - src/core/lib/iomgr/iomgr_posix.c
+  - src/core/lib/iomgr/iomgr_windows.c
+  - src/core/lib/iomgr/pollset_set_windows.c
+  - src/core/lib/iomgr/pollset_windows.c
+  - src/core/lib/iomgr/resolve_address_posix.c
+  - src/core/lib/iomgr/resolve_address_windows.c
+  - src/core/lib/iomgr/sockaddr_utils.c
+  - src/core/lib/iomgr/socket_utils_common_posix.c
+  - src/core/lib/iomgr/socket_utils_linux.c
+  - src/core/lib/iomgr/socket_utils_posix.c
+  - src/core/lib/iomgr/socket_windows.c
+  - src/core/lib/iomgr/tcp_client_posix.c
+  - src/core/lib/iomgr/tcp_client_windows.c
+  - src/core/lib/iomgr/tcp_posix.c
+  - src/core/lib/iomgr/tcp_server_posix.c
+  - src/core/lib/iomgr/tcp_server_windows.c
+  - src/core/lib/iomgr/tcp_windows.c
+  - src/core/lib/iomgr/time_averaged_stats.c
+  - src/core/lib/iomgr/timer.c
+  - src/core/lib/iomgr/timer_heap.c
+  - src/core/lib/iomgr/udp_server.c
+  - src/core/lib/iomgr/unix_sockets_posix.c
+  - src/core/lib/iomgr/unix_sockets_posix_noop.c
+  - src/core/lib/iomgr/wakeup_fd_eventfd.c
+  - src/core/lib/iomgr/wakeup_fd_nospecial.c
+  - src/core/lib/iomgr/wakeup_fd_pipe.c
+  - src/core/lib/iomgr/wakeup_fd_posix.c
+  - src/core/lib/iomgr/workqueue_posix.c
+  - src/core/lib/iomgr/workqueue_windows.c
+  - src/core/lib/json/json.c
+  - src/core/lib/json/json_reader.c
+  - src/core/lib/json/json_string.c
+  - src/core/lib/json/json_writer.c
+  - src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c
+  - src/core/lib/surface/alarm.c
+  - src/core/lib/surface/api_trace.c
+  - src/core/lib/surface/byte_buffer.c
+  - src/core/lib/surface/byte_buffer_reader.c
+  - src/core/lib/surface/call.c
+  - src/core/lib/surface/call_details.c
+  - src/core/lib/surface/call_log_batch.c
+  - src/core/lib/surface/channel.c
+  - src/core/lib/surface/channel_connectivity.c
+  - src/core/lib/surface/channel_create.c
+  - src/core/lib/surface/channel_init.c
+  - src/core/lib/surface/channel_ping.c
+  - src/core/lib/surface/channel_stack_type.c
+  - src/core/lib/surface/completion_queue.c
+  - src/core/lib/surface/event_string.c
+  - src/core/lib/surface/init.c
+  - src/core/lib/surface/lame_client.c
+  - src/core/lib/surface/metadata_array.c
+  - src/core/lib/surface/server.c
+  - src/core/lib/surface/server_chttp2.c
+  - src/core/lib/surface/validate_metadata.c
+  - src/core/lib/surface/version.c
+  - src/core/lib/transport/byte_stream.c
+  - src/core/lib/transport/chttp2/alpn.c
+  - src/core/lib/transport/chttp2/bin_encoder.c
+  - src/core/lib/transport/chttp2/frame_data.c
+  - src/core/lib/transport/chttp2/frame_goaway.c
+  - src/core/lib/transport/chttp2/frame_ping.c
+  - src/core/lib/transport/chttp2/frame_rst_stream.c
+  - src/core/lib/transport/chttp2/frame_settings.c
+  - src/core/lib/transport/chttp2/frame_window_update.c
+  - src/core/lib/transport/chttp2/hpack_encoder.c
+  - src/core/lib/transport/chttp2/hpack_parser.c
+  - src/core/lib/transport/chttp2/hpack_table.c
+  - src/core/lib/transport/chttp2/huffsyms.c
+  - src/core/lib/transport/chttp2/incoming_metadata.c
+  - src/core/lib/transport/chttp2/parsing.c
+  - src/core/lib/transport/chttp2/status_conversion.c
+  - src/core/lib/transport/chttp2/stream_lists.c
+  - src/core/lib/transport/chttp2/stream_map.c
+  - src/core/lib/transport/chttp2/timeout_encoding.c
+  - src/core/lib/transport/chttp2/varint.c
+  - src/core/lib/transport/chttp2/writing.c
+  - src/core/lib/transport/chttp2_transport.c
+  - src/core/lib/transport/connectivity_state.c
+  - src/core/lib/transport/metadata.c
+  - src/core/lib/transport/metadata_batch.c
+  - src/core/lib/transport/static_metadata.c
+  - src/core/lib/transport/transport.c
+  - src/core/lib/transport/transport_op_string.c
 - name: grpc_codegen
   public_headers:
   - include/grpc/impl/codegen/byte_buffer.h
@@ -507,42 +510,42 @@
   - include/grpc/impl/codegen/status.h
 - name: grpc_secure
   headers:
-  - src/core/security/auth_filters.h
-  - src/core/security/b64.h
-  - src/core/security/credentials.h
-  - src/core/security/handshake.h
-  - src/core/security/json_token.h
-  - src/core/security/jwt_verifier.h
-  - src/core/security/secure_endpoint.h
-  - src/core/security/security_connector.h
-  - src/core/security/security_context.h
-  - src/core/tsi/fake_transport_security.h
-  - src/core/tsi/ssl_transport_security.h
-  - src/core/tsi/ssl_types.h
-  - src/core/tsi/transport_security.h
-  - src/core/tsi/transport_security_interface.h
+  - src/core/lib/security/auth_filters.h
+  - src/core/lib/security/b64.h
+  - src/core/lib/security/credentials.h
+  - src/core/lib/security/handshake.h
+  - src/core/lib/security/json_token.h
+  - src/core/lib/security/jwt_verifier.h
+  - src/core/lib/security/secure_endpoint.h
+  - src/core/lib/security/security_connector.h
+  - src/core/lib/security/security_context.h
+  - src/core/lib/tsi/fake_transport_security.h
+  - src/core/lib/tsi/ssl_transport_security.h
+  - src/core/lib/tsi/ssl_types.h
+  - src/core/lib/tsi/transport_security.h
+  - src/core/lib/tsi/transport_security_interface.h
   src:
-  - src/core/httpcli/httpcli_security_connector.c
-  - src/core/security/b64.c
-  - src/core/security/client_auth_filter.c
-  - src/core/security/credentials.c
-  - src/core/security/credentials_metadata.c
-  - src/core/security/credentials_posix.c
-  - src/core/security/credentials_win32.c
-  - src/core/security/google_default_credentials.c
-  - src/core/security/handshake.c
-  - src/core/security/json_token.c
-  - src/core/security/jwt_verifier.c
-  - src/core/security/secure_endpoint.c
-  - src/core/security/security_connector.c
-  - src/core/security/security_context.c
-  - src/core/security/server_auth_filter.c
-  - src/core/security/server_secure_chttp2.c
-  - src/core/surface/init_secure.c
-  - src/core/surface/secure_channel_create.c
-  - src/core/tsi/fake_transport_security.c
-  - src/core/tsi/ssl_transport_security.c
-  - src/core/tsi/transport_security.c
+  - src/core/lib/http/httpcli_security_connector.c
+  - src/core/lib/security/b64.c
+  - src/core/lib/security/client_auth_filter.c
+  - src/core/lib/security/credentials.c
+  - src/core/lib/security/credentials_metadata.c
+  - src/core/lib/security/credentials_posix.c
+  - src/core/lib/security/credentials_win32.c
+  - src/core/lib/security/google_default_credentials.c
+  - src/core/lib/security/handshake.c
+  - src/core/lib/security/json_token.c
+  - src/core/lib/security/jwt_verifier.c
+  - src/core/lib/security/secure_endpoint.c
+  - src/core/lib/security/security_connector.c
+  - src/core/lib/security/security_context.c
+  - src/core/lib/security/server_auth_filter.c
+  - src/core/lib/security/server_secure_chttp2.c
+  - src/core/lib/surface/init_secure.c
+  - src/core/lib/surface/secure_channel_create.c
+  - src/core/lib/tsi/fake_transport_security.c
+  - src/core/lib/tsi/ssl_transport_security.c
+  - src/core/lib/tsi/transport_security.c
 - name: grpc_test_util_base
   headers:
   - test/core/end2end/cq_verifier.h
@@ -678,7 +681,7 @@
   build: all
   language: c
   src:
-  - src/core/surface/init_unsecure.c
+  - src/core/lib/surface/init_unsecure.c
   deps:
   - gpr
   baselib: true
@@ -697,9 +700,9 @@
   public_headers:
   - include/grpc/grpc_zookeeper.h
   headers:
-  - src/core/client_config/resolvers/zookeeper_resolver.h
+  - src/core/lib/client_config/resolvers/zookeeper_resolver.h
   src:
-  - src/core/client_config/resolvers/zookeeper_resolver.c
+  - src/core/lib/client_config/resolvers/zookeeper_resolver.c
   deps:
   - gpr
   - grpc
@@ -758,7 +761,7 @@
   secure: check
   vs_project_guid: '{C187A093-A0FE-489D-A40A-6E33DE0F9FEB}'
 - name: grpc++_codegen_lib
-  build: protoc
+  build: all
   language: c++
   headers: []
   src: []
@@ -1558,21 +1561,21 @@
   - grpc
   - gpr_test_util
   - gpr
-- name: httpcli_format_request_test
+- name: http_parser_test
   build: test
   language: c
   src:
-  - test/core/httpcli/format_request_test.c
+  - test/core/http/parser_test.c
   deps:
   - grpc_test_util
   - grpc
   - gpr_test_util
   - gpr
-- name: httpcli_parser_test
+- name: httpcli_format_request_test
   build: test
   language: c
   src:
-  - test/core/httpcli/parser_test.c
+  - test/core/http/format_request_test.c
   deps:
   - grpc_test_util
   - grpc
@@ -1583,7 +1586,7 @@
   build: test
   language: c
   src:
-  - test/core/httpcli/httpcli_test.c
+  - test/core/http/httpcli_test.c
   deps:
   - grpc_test_util
   - grpc
@@ -1598,7 +1601,7 @@
   build: test
   language: c
   src:
-  - test/core/httpcli/httpscli_test.c
+  - test/core/http/httpscli_test.c
   deps:
   - grpc_test_util
   - grpc
@@ -1712,6 +1715,7 @@
   - gpr_test_util
   - gpr
 - name: mlog_test
+  flaky: true
   build: test
   language: c
   src:
@@ -2467,8 +2471,6 @@
   - gpr_test_util
   - gpr
   - grpc++_test_config
-  exclude_configs:
-  - tsan
   platforms:
   - mac
   - linux
@@ -2488,8 +2490,6 @@
   - gpr_test_util
   - gpr
   - grpc++_test_config
-  exclude_configs:
-  - tsan
   platforms:
   - mac
   - linux
@@ -2822,11 +2822,11 @@
   etsan:
     CC: clang
     CPPFLAGS: -O0 -fsanitize=thread -fno-omit-frame-pointer -Wno-unused-command-line-argument
-      -fPIE -pie -DGPR_NO_DIRECT_SYSCALLS
+      -DGPR_NO_DIRECT_SYSCALLS
     CXX: clang++
     DEFINES: _DEBUG DEBUG GRPC_EXECUTION_CONTEXT_SANITIZER
     LD: clang
-    LDFLAGS: -fsanitize=thread -fPIE -pie $(if $(JENKINS_BUILD),-Wl$(comma)-Ttext-segment=0x7e0000000000,)
+    LDFLAGS: -fsanitize=thread
     LDXX: clang++
     compile_the_world: true
     test_environ:
@@ -2878,10 +2878,10 @@
   tsan:
     CC: clang
     CPPFLAGS: -O0 -fsanitize=thread -fno-omit-frame-pointer -Wno-unused-command-line-argument
-      -fPIE -pie -DGPR_NO_DIRECT_SYSCALLS
+      -DGPR_NO_DIRECT_SYSCALLS
     CXX: clang++
     LD: clang
-    LDFLAGS: -fsanitize=thread -fPIE -pie $(if $(JENKINS_BUILD),-Wl$(comma)-Ttext-segment=0x7e0000000000,)
+    LDFLAGS: -fsanitize=thread
     LDXX: clang++
     compile_the_world: true
     test_environ:
diff --git a/config.m4 b/config.m4
index 6d638f1..4f848f1 100644
--- a/config.m4
+++ b/config.m4
@@ -36,207 +36,208 @@
     src/php/ext/grpc/server.c \
     src/php/ext/grpc/server_credentials.c \
     src/php/ext/grpc/timeval.c \
-    src/core/profiling/basic_timers.c \
-    src/core/profiling/stap_timers.c \
-    src/core/support/alloc.c \
-    src/core/support/avl.c \
-    src/core/support/backoff.c \
-    src/core/support/cmdline.c \
-    src/core/support/cpu_iphone.c \
-    src/core/support/cpu_linux.c \
-    src/core/support/cpu_posix.c \
-    src/core/support/cpu_windows.c \
-    src/core/support/env_linux.c \
-    src/core/support/env_posix.c \
-    src/core/support/env_win32.c \
-    src/core/support/histogram.c \
-    src/core/support/host_port.c \
-    src/core/support/load_file.c \
-    src/core/support/log.c \
-    src/core/support/log_android.c \
-    src/core/support/log_linux.c \
-    src/core/support/log_posix.c \
-    src/core/support/log_win32.c \
-    src/core/support/murmur_hash.c \
-    src/core/support/slice.c \
-    src/core/support/slice_buffer.c \
-    src/core/support/stack_lockfree.c \
-    src/core/support/string.c \
-    src/core/support/string_posix.c \
-    src/core/support/string_win32.c \
-    src/core/support/subprocess_posix.c \
-    src/core/support/subprocess_windows.c \
-    src/core/support/sync.c \
-    src/core/support/sync_posix.c \
-    src/core/support/sync_win32.c \
-    src/core/support/thd.c \
-    src/core/support/thd_posix.c \
-    src/core/support/thd_win32.c \
-    src/core/support/time.c \
-    src/core/support/time_posix.c \
-    src/core/support/time_precise.c \
-    src/core/support/time_win32.c \
-    src/core/support/tls_pthread.c \
-    src/core/support/tmpfile_posix.c \
-    src/core/support/tmpfile_win32.c \
-    src/core/support/wrap_memcpy.c \
-    src/core/census/grpc_context.c \
-    src/core/census/grpc_filter.c \
-    src/core/census/grpc_plugin.c \
-    src/core/channel/channel_args.c \
-    src/core/channel/channel_stack.c \
-    src/core/channel/channel_stack_builder.c \
-    src/core/channel/client_channel.c \
-    src/core/channel/client_uchannel.c \
-    src/core/channel/compress_filter.c \
-    src/core/channel/connected_channel.c \
-    src/core/channel/http_client_filter.c \
-    src/core/channel/http_server_filter.c \
-    src/core/channel/subchannel_call_holder.c \
-    src/core/client_config/client_config.c \
-    src/core/client_config/connector.c \
-    src/core/client_config/default_initial_connect_string.c \
-    src/core/client_config/initial_connect_string.c \
-    src/core/client_config/lb_policies/load_balancer_api.c \
-    src/core/client_config/lb_policies/pick_first.c \
-    src/core/client_config/lb_policies/round_robin.c \
-    src/core/client_config/lb_policy.c \
-    src/core/client_config/lb_policy_factory.c \
-    src/core/client_config/lb_policy_registry.c \
-    src/core/client_config/resolver.c \
-    src/core/client_config/resolver_factory.c \
-    src/core/client_config/resolver_registry.c \
-    src/core/client_config/resolvers/dns_resolver.c \
-    src/core/client_config/resolvers/sockaddr_resolver.c \
-    src/core/client_config/subchannel.c \
-    src/core/client_config/subchannel_factory.c \
-    src/core/client_config/subchannel_index.c \
-    src/core/client_config/uri_parser.c \
-    src/core/compression/compression_algorithm.c \
-    src/core/compression/message_compress.c \
-    src/core/debug/trace.c \
-    src/core/httpcli/format_request.c \
-    src/core/httpcli/httpcli.c \
-    src/core/httpcli/parser.c \
-    src/core/iomgr/closure.c \
-    src/core/iomgr/endpoint.c \
-    src/core/iomgr/endpoint_pair_posix.c \
-    src/core/iomgr/endpoint_pair_windows.c \
-    src/core/iomgr/ev_poll_and_epoll_posix.c \
-    src/core/iomgr/ev_posix.c \
-    src/core/iomgr/exec_ctx.c \
-    src/core/iomgr/executor.c \
-    src/core/iomgr/iocp_windows.c \
-    src/core/iomgr/iomgr.c \
-    src/core/iomgr/iomgr_posix.c \
-    src/core/iomgr/iomgr_windows.c \
-    src/core/iomgr/pollset_set_windows.c \
-    src/core/iomgr/pollset_windows.c \
-    src/core/iomgr/resolve_address_posix.c \
-    src/core/iomgr/resolve_address_windows.c \
-    src/core/iomgr/sockaddr_utils.c \
-    src/core/iomgr/socket_utils_common_posix.c \
-    src/core/iomgr/socket_utils_linux.c \
-    src/core/iomgr/socket_utils_posix.c \
-    src/core/iomgr/socket_windows.c \
-    src/core/iomgr/tcp_client_posix.c \
-    src/core/iomgr/tcp_client_windows.c \
-    src/core/iomgr/tcp_posix.c \
-    src/core/iomgr/tcp_server_posix.c \
-    src/core/iomgr/tcp_server_windows.c \
-    src/core/iomgr/tcp_windows.c \
-    src/core/iomgr/time_averaged_stats.c \
-    src/core/iomgr/timer.c \
-    src/core/iomgr/timer_heap.c \
-    src/core/iomgr/udp_server.c \
-    src/core/iomgr/wakeup_fd_eventfd.c \
-    src/core/iomgr/wakeup_fd_nospecial.c \
-    src/core/iomgr/wakeup_fd_pipe.c \
-    src/core/iomgr/wakeup_fd_posix.c \
-    src/core/iomgr/workqueue_posix.c \
-    src/core/iomgr/workqueue_windows.c \
-    src/core/json/json.c \
-    src/core/json/json_reader.c \
-    src/core/json/json_string.c \
-    src/core/json/json_writer.c \
-    src/core/proto/grpc/lb/v0/load_balancer.pb.c \
-    src/core/surface/alarm.c \
-    src/core/surface/api_trace.c \
-    src/core/surface/byte_buffer.c \
-    src/core/surface/byte_buffer_reader.c \
-    src/core/surface/call.c \
-    src/core/surface/call_details.c \
-    src/core/surface/call_log_batch.c \
-    src/core/surface/channel.c \
-    src/core/surface/channel_connectivity.c \
-    src/core/surface/channel_create.c \
-    src/core/surface/channel_init.c \
-    src/core/surface/channel_ping.c \
-    src/core/surface/channel_stack_type.c \
-    src/core/surface/completion_queue.c \
-    src/core/surface/event_string.c \
-    src/core/surface/init.c \
-    src/core/surface/lame_client.c \
-    src/core/surface/metadata_array.c \
-    src/core/surface/server.c \
-    src/core/surface/server_chttp2.c \
-    src/core/surface/validate_metadata.c \
-    src/core/surface/version.c \
-    src/core/transport/byte_stream.c \
-    src/core/transport/chttp2/alpn.c \
-    src/core/transport/chttp2/bin_encoder.c \
-    src/core/transport/chttp2/frame_data.c \
-    src/core/transport/chttp2/frame_goaway.c \
-    src/core/transport/chttp2/frame_ping.c \
-    src/core/transport/chttp2/frame_rst_stream.c \
-    src/core/transport/chttp2/frame_settings.c \
-    src/core/transport/chttp2/frame_window_update.c \
-    src/core/transport/chttp2/hpack_encoder.c \
-    src/core/transport/chttp2/hpack_parser.c \
-    src/core/transport/chttp2/hpack_table.c \
-    src/core/transport/chttp2/huffsyms.c \
-    src/core/transport/chttp2/incoming_metadata.c \
-    src/core/transport/chttp2/parsing.c \
-    src/core/transport/chttp2/status_conversion.c \
-    src/core/transport/chttp2/stream_lists.c \
-    src/core/transport/chttp2/stream_map.c \
-    src/core/transport/chttp2/timeout_encoding.c \
-    src/core/transport/chttp2/varint.c \
-    src/core/transport/chttp2/writing.c \
-    src/core/transport/chttp2_transport.c \
-    src/core/transport/connectivity_state.c \
-    src/core/transport/metadata.c \
-    src/core/transport/metadata_batch.c \
-    src/core/transport/static_metadata.c \
-    src/core/transport/transport.c \
-    src/core/transport/transport_op_string.c \
-    src/core/httpcli/httpcli_security_connector.c \
-    src/core/security/b64.c \
-    src/core/security/client_auth_filter.c \
-    src/core/security/credentials.c \
-    src/core/security/credentials_metadata.c \
-    src/core/security/credentials_posix.c \
-    src/core/security/credentials_win32.c \
-    src/core/security/google_default_credentials.c \
-    src/core/security/handshake.c \
-    src/core/security/json_token.c \
-    src/core/security/jwt_verifier.c \
-    src/core/security/secure_endpoint.c \
-    src/core/security/security_connector.c \
-    src/core/security/security_context.c \
-    src/core/security/server_auth_filter.c \
-    src/core/security/server_secure_chttp2.c \
-    src/core/surface/init_secure.c \
-    src/core/surface/secure_channel_create.c \
-    src/core/tsi/fake_transport_security.c \
-    src/core/tsi/ssl_transport_security.c \
-    src/core/tsi/transport_security.c \
-    src/core/census/context.c \
-    src/core/census/initialize.c \
-    src/core/census/mlog.c \
-    src/core/census/operation.c \
-    src/core/census/placeholders.c \
-    src/core/census/tracing.c \
+    src/core/lib/profiling/basic_timers.c \
+    src/core/lib/profiling/stap_timers.c \
+    src/core/lib/support/alloc.c \
+    src/core/lib/support/avl.c \
+    src/core/lib/support/backoff.c \
+    src/core/lib/support/cmdline.c \
+    src/core/lib/support/cpu_iphone.c \
+    src/core/lib/support/cpu_linux.c \
+    src/core/lib/support/cpu_posix.c \
+    src/core/lib/support/cpu_windows.c \
+    src/core/lib/support/env_linux.c \
+    src/core/lib/support/env_posix.c \
+    src/core/lib/support/env_win32.c \
+    src/core/lib/support/histogram.c \
+    src/core/lib/support/host_port.c \
+    src/core/lib/support/load_file.c \
+    src/core/lib/support/log.c \
+    src/core/lib/support/log_android.c \
+    src/core/lib/support/log_linux.c \
+    src/core/lib/support/log_posix.c \
+    src/core/lib/support/log_win32.c \
+    src/core/lib/support/murmur_hash.c \
+    src/core/lib/support/slice.c \
+    src/core/lib/support/slice_buffer.c \
+    src/core/lib/support/stack_lockfree.c \
+    src/core/lib/support/string.c \
+    src/core/lib/support/string_posix.c \
+    src/core/lib/support/string_win32.c \
+    src/core/lib/support/subprocess_posix.c \
+    src/core/lib/support/subprocess_windows.c \
+    src/core/lib/support/sync.c \
+    src/core/lib/support/sync_posix.c \
+    src/core/lib/support/sync_win32.c \
+    src/core/lib/support/thd.c \
+    src/core/lib/support/thd_posix.c \
+    src/core/lib/support/thd_win32.c \
+    src/core/lib/support/time.c \
+    src/core/lib/support/time_posix.c \
+    src/core/lib/support/time_precise.c \
+    src/core/lib/support/time_win32.c \
+    src/core/lib/support/tls_pthread.c \
+    src/core/lib/support/tmpfile_posix.c \
+    src/core/lib/support/tmpfile_win32.c \
+    src/core/lib/support/wrap_memcpy.c \
+    src/core/lib/census/grpc_context.c \
+    src/core/lib/census/grpc_filter.c \
+    src/core/lib/census/grpc_plugin.c \
+    src/core/lib/channel/channel_args.c \
+    src/core/lib/channel/channel_stack.c \
+    src/core/lib/channel/channel_stack_builder.c \
+    src/core/lib/channel/client_channel.c \
+    src/core/lib/channel/compress_filter.c \
+    src/core/lib/channel/connected_channel.c \
+    src/core/lib/channel/http_client_filter.c \
+    src/core/lib/channel/http_server_filter.c \
+    src/core/lib/channel/subchannel_call_holder.c \
+    src/core/lib/client_config/client_config.c \
+    src/core/lib/client_config/connector.c \
+    src/core/lib/client_config/default_initial_connect_string.c \
+    src/core/lib/client_config/initial_connect_string.c \
+    src/core/lib/client_config/lb_policies/load_balancer_api.c \
+    src/core/lib/client_config/lb_policies/pick_first.c \
+    src/core/lib/client_config/lb_policies/round_robin.c \
+    src/core/lib/client_config/lb_policy.c \
+    src/core/lib/client_config/lb_policy_factory.c \
+    src/core/lib/client_config/lb_policy_registry.c \
+    src/core/lib/client_config/resolver.c \
+    src/core/lib/client_config/resolver_factory.c \
+    src/core/lib/client_config/resolver_registry.c \
+    src/core/lib/client_config/resolvers/dns_resolver.c \
+    src/core/lib/client_config/resolvers/sockaddr_resolver.c \
+    src/core/lib/client_config/subchannel.c \
+    src/core/lib/client_config/subchannel_factory.c \
+    src/core/lib/client_config/subchannel_index.c \
+    src/core/lib/client_config/uri_parser.c \
+    src/core/lib/compression/compression_algorithm.c \
+    src/core/lib/compression/message_compress.c \
+    src/core/lib/debug/trace.c \
+    src/core/lib/http/format_request.c \
+    src/core/lib/http/httpcli.c \
+    src/core/lib/http/parser.c \
+    src/core/lib/iomgr/closure.c \
+    src/core/lib/iomgr/endpoint.c \
+    src/core/lib/iomgr/endpoint_pair_posix.c \
+    src/core/lib/iomgr/endpoint_pair_windows.c \
+    src/core/lib/iomgr/ev_poll_and_epoll_posix.c \
+    src/core/lib/iomgr/ev_posix.c \
+    src/core/lib/iomgr/exec_ctx.c \
+    src/core/lib/iomgr/executor.c \
+    src/core/lib/iomgr/iocp_windows.c \
+    src/core/lib/iomgr/iomgr.c \
+    src/core/lib/iomgr/iomgr_posix.c \
+    src/core/lib/iomgr/iomgr_windows.c \
+    src/core/lib/iomgr/pollset_set_windows.c \
+    src/core/lib/iomgr/pollset_windows.c \
+    src/core/lib/iomgr/resolve_address_posix.c \
+    src/core/lib/iomgr/resolve_address_windows.c \
+    src/core/lib/iomgr/sockaddr_utils.c \
+    src/core/lib/iomgr/socket_utils_common_posix.c \
+    src/core/lib/iomgr/socket_utils_linux.c \
+    src/core/lib/iomgr/socket_utils_posix.c \
+    src/core/lib/iomgr/socket_windows.c \
+    src/core/lib/iomgr/tcp_client_posix.c \
+    src/core/lib/iomgr/tcp_client_windows.c \
+    src/core/lib/iomgr/tcp_posix.c \
+    src/core/lib/iomgr/tcp_server_posix.c \
+    src/core/lib/iomgr/tcp_server_windows.c \
+    src/core/lib/iomgr/tcp_windows.c \
+    src/core/lib/iomgr/time_averaged_stats.c \
+    src/core/lib/iomgr/timer.c \
+    src/core/lib/iomgr/timer_heap.c \
+    src/core/lib/iomgr/udp_server.c \
+    src/core/lib/iomgr/unix_sockets_posix.c \
+    src/core/lib/iomgr/unix_sockets_posix_noop.c \
+    src/core/lib/iomgr/wakeup_fd_eventfd.c \
+    src/core/lib/iomgr/wakeup_fd_nospecial.c \
+    src/core/lib/iomgr/wakeup_fd_pipe.c \
+    src/core/lib/iomgr/wakeup_fd_posix.c \
+    src/core/lib/iomgr/workqueue_posix.c \
+    src/core/lib/iomgr/workqueue_windows.c \
+    src/core/lib/json/json.c \
+    src/core/lib/json/json_reader.c \
+    src/core/lib/json/json_string.c \
+    src/core/lib/json/json_writer.c \
+    src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c \
+    src/core/lib/surface/alarm.c \
+    src/core/lib/surface/api_trace.c \
+    src/core/lib/surface/byte_buffer.c \
+    src/core/lib/surface/byte_buffer_reader.c \
+    src/core/lib/surface/call.c \
+    src/core/lib/surface/call_details.c \
+    src/core/lib/surface/call_log_batch.c \
+    src/core/lib/surface/channel.c \
+    src/core/lib/surface/channel_connectivity.c \
+    src/core/lib/surface/channel_create.c \
+    src/core/lib/surface/channel_init.c \
+    src/core/lib/surface/channel_ping.c \
+    src/core/lib/surface/channel_stack_type.c \
+    src/core/lib/surface/completion_queue.c \
+    src/core/lib/surface/event_string.c \
+    src/core/lib/surface/init.c \
+    src/core/lib/surface/lame_client.c \
+    src/core/lib/surface/metadata_array.c \
+    src/core/lib/surface/server.c \
+    src/core/lib/surface/server_chttp2.c \
+    src/core/lib/surface/validate_metadata.c \
+    src/core/lib/surface/version.c \
+    src/core/lib/transport/byte_stream.c \
+    src/core/lib/transport/chttp2/alpn.c \
+    src/core/lib/transport/chttp2/bin_encoder.c \
+    src/core/lib/transport/chttp2/frame_data.c \
+    src/core/lib/transport/chttp2/frame_goaway.c \
+    src/core/lib/transport/chttp2/frame_ping.c \
+    src/core/lib/transport/chttp2/frame_rst_stream.c \
+    src/core/lib/transport/chttp2/frame_settings.c \
+    src/core/lib/transport/chttp2/frame_window_update.c \
+    src/core/lib/transport/chttp2/hpack_encoder.c \
+    src/core/lib/transport/chttp2/hpack_parser.c \
+    src/core/lib/transport/chttp2/hpack_table.c \
+    src/core/lib/transport/chttp2/huffsyms.c \
+    src/core/lib/transport/chttp2/incoming_metadata.c \
+    src/core/lib/transport/chttp2/parsing.c \
+    src/core/lib/transport/chttp2/status_conversion.c \
+    src/core/lib/transport/chttp2/stream_lists.c \
+    src/core/lib/transport/chttp2/stream_map.c \
+    src/core/lib/transport/chttp2/timeout_encoding.c \
+    src/core/lib/transport/chttp2/varint.c \
+    src/core/lib/transport/chttp2/writing.c \
+    src/core/lib/transport/chttp2_transport.c \
+    src/core/lib/transport/connectivity_state.c \
+    src/core/lib/transport/metadata.c \
+    src/core/lib/transport/metadata_batch.c \
+    src/core/lib/transport/static_metadata.c \
+    src/core/lib/transport/transport.c \
+    src/core/lib/transport/transport_op_string.c \
+    src/core/lib/http/httpcli_security_connector.c \
+    src/core/lib/security/b64.c \
+    src/core/lib/security/client_auth_filter.c \
+    src/core/lib/security/credentials.c \
+    src/core/lib/security/credentials_metadata.c \
+    src/core/lib/security/credentials_posix.c \
+    src/core/lib/security/credentials_win32.c \
+    src/core/lib/security/google_default_credentials.c \
+    src/core/lib/security/handshake.c \
+    src/core/lib/security/json_token.c \
+    src/core/lib/security/jwt_verifier.c \
+    src/core/lib/security/secure_endpoint.c \
+    src/core/lib/security/security_connector.c \
+    src/core/lib/security/security_context.c \
+    src/core/lib/security/server_auth_filter.c \
+    src/core/lib/security/server_secure_chttp2.c \
+    src/core/lib/surface/init_secure.c \
+    src/core/lib/surface/secure_channel_create.c \
+    src/core/lib/tsi/fake_transport_security.c \
+    src/core/lib/tsi/ssl_transport_security.c \
+    src/core/lib/tsi/transport_security.c \
+    src/core/lib/census/context.c \
+    src/core/lib/census/initialize.c \
+    src/core/lib/census/mlog.c \
+    src/core/lib/census/operation.c \
+    src/core/lib/census/placeholders.c \
+    src/core/lib/census/tracing.c \
     third_party/nanopb/pb_common.c \
     third_party/nanopb/pb_decode.c \
     third_party/nanopb/pb_encode.c \
@@ -542,24 +543,24 @@
   PHP_ADD_BUILD_DIR($ext_builddir/src/php/ext/grpc)
 
   PHP_ADD_BUILD_DIR($ext_builddir/src/boringssl)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/census)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/channel)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/client_config)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/client_config/lb_policies)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/client_config/resolvers)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/compression)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/debug)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/httpcli)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/iomgr)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/json)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/profiling)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/proto/grpc/lb/v0)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/security)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/support)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/surface)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/transport)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/transport/chttp2)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/tsi)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/census)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/channel)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/client_config)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/client_config/lb_policies)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/client_config/resolvers)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/compression)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/debug)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/http)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/iomgr)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/json)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/profiling)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/proto/grpc/lb/v0)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/security)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/support)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/surface)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/transport)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/transport/chttp2)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/tsi)
   PHP_ADD_BUILD_DIR($ext_builddir/third_party/boringssl/crypto)
   PHP_ADD_BUILD_DIR($ext_builddir/third_party/boringssl/crypto/aes)
   PHP_ADD_BUILD_DIR($ext_builddir/third_party/boringssl/crypto/asn1)
diff --git a/doc/interop-test-descriptions.md b/doc/interop-test-descriptions.md
index 3beb1d1..6297b5c 100644
--- a/doc/interop-test-descriptions.md
+++ b/doc/interop-test-descriptions.md
@@ -27,7 +27,7 @@
     * Whether to use a plaintext or encrypted connection
 * --use_test_ca=BOOLEAN
     * Whether to replace platform root CAs with
-      [ca.pem](https://github.com/grpc/grpc/blob/master/src/core/tsi/test_creds/ca.pem)
+      [ca.pem](https://github.com/grpc/grpc/blob/master/src/core/lib/tsi/test_creds/ca.pem)
       as the CA root
 * --default_service_account=ACCOUNT_EMAIL
     * Email of the GCE default service account. Only applicable
@@ -920,7 +920,7 @@
     * Whether to use a plaintext or encrypted connection
 
 Servers must support TLS with ALPN. They should use
-[server1.pem](https://github.com/grpc/grpc/blob/master/src/core/tsi/test_creds/server1.pem)
+[server1.pem](https://github.com/grpc/grpc/blob/master/src/core/lib/tsi/test_creds/server1.pem)
 for their certificate.
 
 ### EmptyCall
diff --git a/examples/node/README.md b/examples/node/README.md
index c1ef6b0..2887883 100644
--- a/examples/node/README.md
+++ b/examples/node/README.md
@@ -10,6 +10,11 @@
 -------
 
    ```sh
+   $ # Get the gRPC repository
+   $ export REPO_ROOT=grpc # REPO root can be any directory of your choice
+   $ git clone https://github.com/grpc/grpc.git $REPO_ROOT
+   $ cd $REPO_ROOT
+
    $ cd examples/node
    $ npm install
    ```
diff --git a/examples/python/helloworld/greeter_client.py b/examples/python/helloworld/greeter_client.py
index 561b25b..9c18b41 100644
--- a/examples/python/helloworld/greeter_client.py
+++ b/examples/python/helloworld/greeter_client.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -29,6 +29,8 @@
 
 """The Python implementation of the GRPC helloworld.Greeter client."""
 
+from __future__ import print_function
+
 from grpc.beta import implementations
 
 import helloworld_pb2
@@ -40,7 +42,7 @@
   channel = implementations.insecure_channel('localhost', 50051)
   stub = helloworld_pb2.beta_create_Greeter_stub(channel)
   response = stub.SayHello(helloworld_pb2.HelloRequest(name='you'), _TIMEOUT_SECONDS)
-  print "Greeter client received: " + response.message
+  print("Greeter client received: " + response.message)
 
 
 if __name__ == '__main__':
diff --git a/examples/python/route_guide/route_guide_client.py b/examples/python/route_guide/route_guide_client.py
index b1dfad5..9d6f865 100644
--- a/examples/python/route_guide/route_guide_client.py
+++ b/examples/python/route_guide/route_guide_client.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -29,6 +29,8 @@
 
 """The Python implementation of the gRPC route guide client."""
 
+from __future__ import print_function
+
 import random
 import time
 
@@ -49,13 +51,13 @@
 def guide_get_one_feature(stub, point):
   feature = stub.GetFeature(point, _TIMEOUT_SECONDS)
   if not feature.location:
-    print "Server returned incomplete feature"
+    print("Server returned incomplete feature")
     return
 
   if feature.name:
-    print "Feature called %s at %s" % (feature.name, feature.location)
+    print("Feature called %s at %s" % (feature.name, feature.location))
   else:
-    print "Found no feature at %s" % feature.location
+    print("Found no feature at %s" % feature.location)
 
 
 def guide_get_feature(stub):
@@ -69,18 +71,18 @@
           latitude=400000000, longitude = -750000000),
       hi=route_guide_pb2.Point(
           latitude = 420000000, longitude = -730000000))
-  print "Looking for features between 40, -75 and 42, -73"
+  print("Looking for features between 40, -75 and 42, -73")
 
   features = stub.ListFeatures(rect, _TIMEOUT_SECONDS)
 
   for feature in features:
-    print "Feature called %s at %s" % (feature.name, feature.location)
+    print("Feature called %s at %s" % (feature.name, feature.location))
 
 
 def generate_route(feature_list):
   for _ in range(0, 10):
     random_feature = feature_list[random.randint(0, len(feature_list) - 1)]
-    print "Visiting point %s" % random_feature.location
+    print("Visiting point %s" % random_feature.location)
     yield random_feature.location
     time.sleep(random.uniform(0.5, 1.5))
 
@@ -90,10 +92,10 @@
 
   route_iter = generate_route(feature_list)
   route_summary = stub.RecordRoute(route_iter, _TIMEOUT_SECONDS)
-  print "Finished trip with %s points " % route_summary.point_count
-  print "Passed %s features " % route_summary.feature_count
-  print "Travelled %s meters " % route_summary.distance
-  print "It took %s seconds " % route_summary.elapsed_time
+  print("Finished trip with %s points " % route_summary.point_count)
+  print("Passed %s features " % route_summary.feature_count)
+  print("Travelled %s meters " % route_summary.distance)
+  print("It took %s seconds " % route_summary.elapsed_time)
 
 
 def generate_messages():
@@ -105,7 +107,7 @@
       make_route_note("Fifth message", 1, 0),
   ]
   for msg in messages:
-    print "Sending %s at %s" % (msg.message, msg.location)
+    print("Sending %s at %s" % (msg.message, msg.location))
     yield msg
     time.sleep(random.uniform(0.5, 1.0))
 
@@ -113,19 +115,19 @@
 def guide_route_chat(stub):
   responses = stub.RouteChat(generate_messages(), _TIMEOUT_SECONDS)
   for response in responses:
-    print "Received message %s at %s" % (response.message, response.location)
+    print("Received message %s at %s" % (response.message, response.location))
 
 
 def run():
   channel = implementations.insecure_channel('localhost', 50051)
   stub = route_guide_pb2.beta_create_RouteGuide_stub(channel)
-  print "-------------- GetFeature --------------"
+  print("-------------- GetFeature --------------")
   guide_get_feature(stub)
-  print "-------------- ListFeatures --------------"
+  print("-------------- ListFeatures --------------")
   guide_list_features(stub)
-  print "-------------- RecordRoute --------------"
+  print("-------------- RecordRoute --------------")
   guide_record_route(stub)
-  print "-------------- RouteChat --------------"
+  print("-------------- RouteChat --------------")
   guide_route_chat(stub)
 
 
diff --git a/gRPC.podspec b/gRPC.podspec
index eb27442..c4578ef 100644
--- a/gRPC.podspec
+++ b/gRPC.podspec
@@ -63,18 +63,18 @@
 
   # Core cross-platform gRPC library, written in C.
   s.subspec 'C-Core' do |ss|
-    ss.source_files = 'src/core/profiling/timers.h',
-                      'src/core/support/backoff.h',
-                      'src/core/support/block_annotate.h',
-                      'src/core/support/env.h',
-                      'src/core/support/load_file.h',
-                      'src/core/support/murmur_hash.h',
-                      'src/core/support/stack_lockfree.h',
-                      'src/core/support/string.h',
-                      'src/core/support/string_win32.h',
-                      'src/core/support/thd_internal.h',
-                      'src/core/support/time_precise.h',
-                      'src/core/support/tmpfile.h',
+    ss.source_files = 'src/core/lib/profiling/timers.h',
+                      'src/core/lib/support/backoff.h',
+                      'src/core/lib/support/block_annotate.h',
+                      'src/core/lib/support/env.h',
+                      'src/core/lib/support/load_file.h',
+                      'src/core/lib/support/murmur_hash.h',
+                      'src/core/lib/support/stack_lockfree.h',
+                      'src/core/lib/support/string.h',
+                      'src/core/lib/support/string_win32.h',
+                      'src/core/lib/support/thd_internal.h',
+                      'src/core/lib/support/time_precise.h',
+                      'src/core/lib/support/tmpfile.h',
                       'include/grpc/support/alloc.h',
                       'include/grpc/support/atm.h',
                       'include/grpc/support/atm_gcc_atomic.h',
@@ -117,186 +117,188 @@
                       'include/grpc/impl/codegen/sync_posix.h',
                       'include/grpc/impl/codegen/sync_win32.h',
                       'include/grpc/impl/codegen/time.h',
-                      'src/core/profiling/basic_timers.c',
-                      'src/core/profiling/stap_timers.c',
-                      'src/core/support/alloc.c',
-                      'src/core/support/avl.c',
-                      'src/core/support/backoff.c',
-                      'src/core/support/cmdline.c',
-                      'src/core/support/cpu_iphone.c',
-                      'src/core/support/cpu_linux.c',
-                      'src/core/support/cpu_posix.c',
-                      'src/core/support/cpu_windows.c',
-                      'src/core/support/env_linux.c',
-                      'src/core/support/env_posix.c',
-                      'src/core/support/env_win32.c',
-                      'src/core/support/histogram.c',
-                      'src/core/support/host_port.c',
-                      'src/core/support/load_file.c',
-                      'src/core/support/log.c',
-                      'src/core/support/log_android.c',
-                      'src/core/support/log_linux.c',
-                      'src/core/support/log_posix.c',
-                      'src/core/support/log_win32.c',
-                      'src/core/support/murmur_hash.c',
-                      'src/core/support/slice.c',
-                      'src/core/support/slice_buffer.c',
-                      'src/core/support/stack_lockfree.c',
-                      'src/core/support/string.c',
-                      'src/core/support/string_posix.c',
-                      'src/core/support/string_win32.c',
-                      'src/core/support/subprocess_posix.c',
-                      'src/core/support/subprocess_windows.c',
-                      'src/core/support/sync.c',
-                      'src/core/support/sync_posix.c',
-                      'src/core/support/sync_win32.c',
-                      'src/core/support/thd.c',
-                      'src/core/support/thd_posix.c',
-                      'src/core/support/thd_win32.c',
-                      'src/core/support/time.c',
-                      'src/core/support/time_posix.c',
-                      'src/core/support/time_precise.c',
-                      'src/core/support/time_win32.c',
-                      'src/core/support/tls_pthread.c',
-                      'src/core/support/tmpfile_posix.c',
-                      'src/core/support/tmpfile_win32.c',
-                      'src/core/support/wrap_memcpy.c',
-                      'src/core/census/grpc_filter.h',
-                      'src/core/census/grpc_plugin.h',
-                      'src/core/channel/channel_args.h',
-                      'src/core/channel/channel_stack.h',
-                      'src/core/channel/channel_stack_builder.h',
-                      'src/core/channel/client_channel.h',
-                      'src/core/channel/client_uchannel.h',
-                      'src/core/channel/compress_filter.h',
-                      'src/core/channel/connected_channel.h',
-                      'src/core/channel/context.h',
-                      'src/core/channel/http_client_filter.h',
-                      'src/core/channel/http_server_filter.h',
-                      'src/core/channel/subchannel_call_holder.h',
-                      'src/core/client_config/client_config.h',
-                      'src/core/client_config/connector.h',
-                      'src/core/client_config/initial_connect_string.h',
-                      'src/core/client_config/lb_policies/load_balancer_api.h',
-                      'src/core/client_config/lb_policies/pick_first.h',
-                      'src/core/client_config/lb_policies/round_robin.h',
-                      'src/core/client_config/lb_policy.h',
-                      'src/core/client_config/lb_policy_factory.h',
-                      'src/core/client_config/lb_policy_registry.h',
-                      'src/core/client_config/resolver.h',
-                      'src/core/client_config/resolver_factory.h',
-                      'src/core/client_config/resolver_registry.h',
-                      'src/core/client_config/resolvers/dns_resolver.h',
-                      'src/core/client_config/resolvers/sockaddr_resolver.h',
-                      'src/core/client_config/subchannel.h',
-                      'src/core/client_config/subchannel_factory.h',
-                      'src/core/client_config/subchannel_index.h',
-                      'src/core/client_config/uri_parser.h',
-                      'src/core/compression/algorithm_metadata.h',
-                      'src/core/compression/message_compress.h',
-                      'src/core/debug/trace.h',
-                      'src/core/httpcli/format_request.h',
-                      'src/core/httpcli/httpcli.h',
-                      'src/core/httpcli/parser.h',
-                      'src/core/iomgr/closure.h',
-                      'src/core/iomgr/endpoint.h',
-                      'src/core/iomgr/endpoint_pair.h',
-                      'src/core/iomgr/ev_poll_and_epoll_posix.h',
-                      'src/core/iomgr/ev_posix.h',
-                      'src/core/iomgr/exec_ctx.h',
-                      'src/core/iomgr/executor.h',
-                      'src/core/iomgr/iocp_windows.h',
-                      'src/core/iomgr/iomgr.h',
-                      'src/core/iomgr/iomgr_internal.h',
-                      'src/core/iomgr/iomgr_posix.h',
-                      'src/core/iomgr/pollset.h',
-                      'src/core/iomgr/pollset_set.h',
-                      'src/core/iomgr/pollset_set_windows.h',
-                      'src/core/iomgr/pollset_windows.h',
-                      'src/core/iomgr/resolve_address.h',
-                      'src/core/iomgr/sockaddr.h',
-                      'src/core/iomgr/sockaddr_posix.h',
-                      'src/core/iomgr/sockaddr_utils.h',
-                      'src/core/iomgr/sockaddr_win32.h',
-                      'src/core/iomgr/socket_utils_posix.h',
-                      'src/core/iomgr/socket_windows.h',
-                      'src/core/iomgr/tcp_client.h',
-                      'src/core/iomgr/tcp_posix.h',
-                      'src/core/iomgr/tcp_server.h',
-                      'src/core/iomgr/tcp_windows.h',
-                      'src/core/iomgr/time_averaged_stats.h',
-                      'src/core/iomgr/timer.h',
-                      'src/core/iomgr/timer_heap.h',
-                      'src/core/iomgr/udp_server.h',
-                      'src/core/iomgr/wakeup_fd_pipe.h',
-                      'src/core/iomgr/wakeup_fd_posix.h',
-                      'src/core/iomgr/workqueue.h',
-                      'src/core/iomgr/workqueue_posix.h',
-                      'src/core/iomgr/workqueue_windows.h',
-                      'src/core/json/json.h',
-                      'src/core/json/json_common.h',
-                      'src/core/json/json_reader.h',
-                      'src/core/json/json_writer.h',
-                      'src/core/proto/grpc/lb/v0/load_balancer.pb.h',
-                      'src/core/statistics/census_interface.h',
-                      'src/core/statistics/census_rpc_stats.h',
-                      'src/core/surface/api_trace.h',
-                      'src/core/surface/call.h',
-                      'src/core/surface/call_test_only.h',
-                      'src/core/surface/channel.h',
-                      'src/core/surface/channel_init.h',
-                      'src/core/surface/channel_stack_type.h',
-                      'src/core/surface/completion_queue.h',
-                      'src/core/surface/event_string.h',
-                      'src/core/surface/init.h',
-                      'src/core/surface/lame_client.h',
-                      'src/core/surface/server.h',
-                      'src/core/surface/surface_trace.h',
-                      'src/core/transport/byte_stream.h',
-                      'src/core/transport/chttp2/alpn.h',
-                      'src/core/transport/chttp2/bin_encoder.h',
-                      'src/core/transport/chttp2/frame.h',
-                      'src/core/transport/chttp2/frame_data.h',
-                      'src/core/transport/chttp2/frame_goaway.h',
-                      'src/core/transport/chttp2/frame_ping.h',
-                      'src/core/transport/chttp2/frame_rst_stream.h',
-                      'src/core/transport/chttp2/frame_settings.h',
-                      'src/core/transport/chttp2/frame_window_update.h',
-                      'src/core/transport/chttp2/hpack_encoder.h',
-                      'src/core/transport/chttp2/hpack_parser.h',
-                      'src/core/transport/chttp2/hpack_table.h',
-                      'src/core/transport/chttp2/http2_errors.h',
-                      'src/core/transport/chttp2/huffsyms.h',
-                      'src/core/transport/chttp2/incoming_metadata.h',
-                      'src/core/transport/chttp2/internal.h',
-                      'src/core/transport/chttp2/status_conversion.h',
-                      'src/core/transport/chttp2/stream_map.h',
-                      'src/core/transport/chttp2/timeout_encoding.h',
-                      'src/core/transport/chttp2/varint.h',
-                      'src/core/transport/chttp2_transport.h',
-                      'src/core/transport/connectivity_state.h',
-                      'src/core/transport/metadata.h',
-                      'src/core/transport/metadata_batch.h',
-                      'src/core/transport/static_metadata.h',
-                      'src/core/transport/transport.h',
-                      'src/core/transport/transport_impl.h',
-                      'src/core/security/auth_filters.h',
-                      'src/core/security/b64.h',
-                      'src/core/security/credentials.h',
-                      'src/core/security/handshake.h',
-                      'src/core/security/json_token.h',
-                      'src/core/security/jwt_verifier.h',
-                      'src/core/security/secure_endpoint.h',
-                      'src/core/security/security_connector.h',
-                      'src/core/security/security_context.h',
-                      'src/core/tsi/fake_transport_security.h',
-                      'src/core/tsi/ssl_transport_security.h',
-                      'src/core/tsi/ssl_types.h',
-                      'src/core/tsi/transport_security.h',
-                      'src/core/tsi/transport_security_interface.h',
-                      'src/core/census/aggregation.h',
-                      'src/core/census/mlog.h',
-                      'src/core/census/rpc_metric_id.h',
+                      'src/core/lib/profiling/basic_timers.c',
+                      'src/core/lib/profiling/stap_timers.c',
+                      'src/core/lib/support/alloc.c',
+                      'src/core/lib/support/avl.c',
+                      'src/core/lib/support/backoff.c',
+                      'src/core/lib/support/cmdline.c',
+                      'src/core/lib/support/cpu_iphone.c',
+                      'src/core/lib/support/cpu_linux.c',
+                      'src/core/lib/support/cpu_posix.c',
+                      'src/core/lib/support/cpu_windows.c',
+                      'src/core/lib/support/env_linux.c',
+                      'src/core/lib/support/env_posix.c',
+                      'src/core/lib/support/env_win32.c',
+                      'src/core/lib/support/histogram.c',
+                      'src/core/lib/support/host_port.c',
+                      'src/core/lib/support/load_file.c',
+                      'src/core/lib/support/log.c',
+                      'src/core/lib/support/log_android.c',
+                      'src/core/lib/support/log_linux.c',
+                      'src/core/lib/support/log_posix.c',
+                      'src/core/lib/support/log_win32.c',
+                      'src/core/lib/support/murmur_hash.c',
+                      'src/core/lib/support/slice.c',
+                      'src/core/lib/support/slice_buffer.c',
+                      'src/core/lib/support/stack_lockfree.c',
+                      'src/core/lib/support/string.c',
+                      'src/core/lib/support/string_posix.c',
+                      'src/core/lib/support/string_win32.c',
+                      'src/core/lib/support/subprocess_posix.c',
+                      'src/core/lib/support/subprocess_windows.c',
+                      'src/core/lib/support/sync.c',
+                      'src/core/lib/support/sync_posix.c',
+                      'src/core/lib/support/sync_win32.c',
+                      'src/core/lib/support/thd.c',
+                      'src/core/lib/support/thd_posix.c',
+                      'src/core/lib/support/thd_win32.c',
+                      'src/core/lib/support/time.c',
+                      'src/core/lib/support/time_posix.c',
+                      'src/core/lib/support/time_precise.c',
+                      'src/core/lib/support/time_win32.c',
+                      'src/core/lib/support/tls_pthread.c',
+                      'src/core/lib/support/tmpfile_posix.c',
+                      'src/core/lib/support/tmpfile_win32.c',
+                      'src/core/lib/support/wrap_memcpy.c',
+                      'src/core/lib/census/grpc_filter.h',
+                      'src/core/lib/census/grpc_plugin.h',
+                      'src/core/lib/channel/channel_args.h',
+                      'src/core/lib/channel/channel_stack.h',
+                      'src/core/lib/channel/channel_stack_builder.h',
+                      'src/core/lib/channel/client_channel.h',
+                      'src/core/lib/channel/compress_filter.h',
+                      'src/core/lib/channel/connected_channel.h',
+                      'src/core/lib/channel/context.h',
+                      'src/core/lib/channel/http_client_filter.h',
+                      'src/core/lib/channel/http_server_filter.h',
+                      'src/core/lib/channel/subchannel_call_holder.h',
+                      'src/core/lib/client_config/client_config.h',
+                      'src/core/lib/client_config/connector.h',
+                      'src/core/lib/client_config/initial_connect_string.h',
+                      'src/core/lib/client_config/lb_policies/load_balancer_api.h',
+                      'src/core/lib/client_config/lb_policies/pick_first.h',
+                      'src/core/lib/client_config/lb_policies/round_robin.h',
+                      'src/core/lib/client_config/lb_policy.h',
+                      'src/core/lib/client_config/lb_policy_factory.h',
+                      'src/core/lib/client_config/lb_policy_registry.h',
+                      'src/core/lib/client_config/resolver.h',
+                      'src/core/lib/client_config/resolver_factory.h',
+                      'src/core/lib/client_config/resolver_registry.h',
+                      'src/core/lib/client_config/resolvers/dns_resolver.h',
+                      'src/core/lib/client_config/resolvers/sockaddr_resolver.h',
+                      'src/core/lib/client_config/subchannel.h',
+                      'src/core/lib/client_config/subchannel_factory.h',
+                      'src/core/lib/client_config/subchannel_index.h',
+                      'src/core/lib/client_config/uri_parser.h',
+                      'src/core/lib/compression/algorithm_metadata.h',
+                      'src/core/lib/compression/message_compress.h',
+                      'src/core/lib/debug/trace.h',
+                      'src/core/lib/http/format_request.h',
+                      'src/core/lib/http/httpcli.h',
+                      'src/core/lib/http/parser.h',
+                      'src/core/lib/iomgr/closure.h',
+                      'src/core/lib/iomgr/endpoint.h',
+                      'src/core/lib/iomgr/endpoint_pair.h',
+                      'src/core/lib/iomgr/ev_poll_and_epoll_posix.h',
+                      'src/core/lib/iomgr/ev_posix.h',
+                      'src/core/lib/iomgr/exec_ctx.h',
+                      'src/core/lib/iomgr/executor.h',
+                      'src/core/lib/iomgr/iocp_windows.h',
+                      'src/core/lib/iomgr/iomgr.h',
+                      'src/core/lib/iomgr/iomgr_internal.h',
+                      'src/core/lib/iomgr/iomgr_posix.h',
+                      'src/core/lib/iomgr/pollset.h',
+                      'src/core/lib/iomgr/pollset_posix.h',
+                      'src/core/lib/iomgr/pollset_set.h',
+                      'src/core/lib/iomgr/pollset_set_posix.h',
+                      'src/core/lib/iomgr/pollset_set_windows.h',
+                      'src/core/lib/iomgr/pollset_windows.h',
+                      'src/core/lib/iomgr/resolve_address.h',
+                      'src/core/lib/iomgr/sockaddr.h',
+                      'src/core/lib/iomgr/sockaddr_posix.h',
+                      'src/core/lib/iomgr/sockaddr_utils.h',
+                      'src/core/lib/iomgr/sockaddr_win32.h',
+                      'src/core/lib/iomgr/socket_utils_posix.h',
+                      'src/core/lib/iomgr/socket_windows.h',
+                      'src/core/lib/iomgr/tcp_client.h',
+                      'src/core/lib/iomgr/tcp_posix.h',
+                      'src/core/lib/iomgr/tcp_server.h',
+                      'src/core/lib/iomgr/tcp_windows.h',
+                      'src/core/lib/iomgr/time_averaged_stats.h',
+                      'src/core/lib/iomgr/timer.h',
+                      'src/core/lib/iomgr/timer_heap.h',
+                      'src/core/lib/iomgr/udp_server.h',
+                      'src/core/lib/iomgr/unix_sockets_posix.h',
+                      'src/core/lib/iomgr/wakeup_fd_pipe.h',
+                      'src/core/lib/iomgr/wakeup_fd_posix.h',
+                      'src/core/lib/iomgr/workqueue.h',
+                      'src/core/lib/iomgr/workqueue_posix.h',
+                      'src/core/lib/iomgr/workqueue_windows.h',
+                      'src/core/lib/json/json.h',
+                      'src/core/lib/json/json_common.h',
+                      'src/core/lib/json/json_reader.h',
+                      'src/core/lib/json/json_writer.h',
+                      'src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h',
+                      'src/core/lib/statistics/census_interface.h',
+                      'src/core/lib/statistics/census_rpc_stats.h',
+                      'src/core/lib/surface/api_trace.h',
+                      'src/core/lib/surface/call.h',
+                      'src/core/lib/surface/call_test_only.h',
+                      'src/core/lib/surface/channel.h',
+                      'src/core/lib/surface/channel_init.h',
+                      'src/core/lib/surface/channel_stack_type.h',
+                      'src/core/lib/surface/completion_queue.h',
+                      'src/core/lib/surface/event_string.h',
+                      'src/core/lib/surface/init.h',
+                      'src/core/lib/surface/lame_client.h',
+                      'src/core/lib/surface/server.h',
+                      'src/core/lib/surface/surface_trace.h',
+                      'src/core/lib/transport/byte_stream.h',
+                      'src/core/lib/transport/chttp2/alpn.h',
+                      'src/core/lib/transport/chttp2/bin_encoder.h',
+                      'src/core/lib/transport/chttp2/frame.h',
+                      'src/core/lib/transport/chttp2/frame_data.h',
+                      'src/core/lib/transport/chttp2/frame_goaway.h',
+                      'src/core/lib/transport/chttp2/frame_ping.h',
+                      'src/core/lib/transport/chttp2/frame_rst_stream.h',
+                      'src/core/lib/transport/chttp2/frame_settings.h',
+                      'src/core/lib/transport/chttp2/frame_window_update.h',
+                      'src/core/lib/transport/chttp2/hpack_encoder.h',
+                      'src/core/lib/transport/chttp2/hpack_parser.h',
+                      'src/core/lib/transport/chttp2/hpack_table.h',
+                      'src/core/lib/transport/chttp2/http2_errors.h',
+                      'src/core/lib/transport/chttp2/huffsyms.h',
+                      'src/core/lib/transport/chttp2/incoming_metadata.h',
+                      'src/core/lib/transport/chttp2/internal.h',
+                      'src/core/lib/transport/chttp2/status_conversion.h',
+                      'src/core/lib/transport/chttp2/stream_map.h',
+                      'src/core/lib/transport/chttp2/timeout_encoding.h',
+                      'src/core/lib/transport/chttp2/varint.h',
+                      'src/core/lib/transport/chttp2_transport.h',
+                      'src/core/lib/transport/connectivity_state.h',
+                      'src/core/lib/transport/metadata.h',
+                      'src/core/lib/transport/metadata_batch.h',
+                      'src/core/lib/transport/static_metadata.h',
+                      'src/core/lib/transport/transport.h',
+                      'src/core/lib/transport/transport_impl.h',
+                      'src/core/lib/security/auth_filters.h',
+                      'src/core/lib/security/b64.h',
+                      'src/core/lib/security/credentials.h',
+                      'src/core/lib/security/handshake.h',
+                      'src/core/lib/security/json_token.h',
+                      'src/core/lib/security/jwt_verifier.h',
+                      'src/core/lib/security/secure_endpoint.h',
+                      'src/core/lib/security/security_connector.h',
+                      'src/core/lib/security/security_context.h',
+                      'src/core/lib/tsi/fake_transport_security.h',
+                      'src/core/lib/tsi/ssl_transport_security.h',
+                      'src/core/lib/tsi/ssl_types.h',
+                      'src/core/lib/tsi/transport_security.h',
+                      'src/core/lib/tsi/transport_security_interface.h',
+                      'src/core/lib/census/aggregation.h',
+                      'src/core/lib/census/mlog.h',
+                      'src/core/lib/census/rpc_metric_id.h',
                       'third_party/nanopb/pb.h',
                       'third_party/nanopb/pb_common.h',
                       'third_party/nanopb/pb_decode.h',
@@ -314,315 +316,318 @@
                       'include/grpc/impl/codegen/propagation_bits.h',
                       'include/grpc/impl/codegen/status.h',
                       'include/grpc/census.h',
-                      'src/core/census/grpc_context.c',
-                      'src/core/census/grpc_filter.c',
-                      'src/core/census/grpc_plugin.c',
-                      'src/core/channel/channel_args.c',
-                      'src/core/channel/channel_stack.c',
-                      'src/core/channel/channel_stack_builder.c',
-                      'src/core/channel/client_channel.c',
-                      'src/core/channel/client_uchannel.c',
-                      'src/core/channel/compress_filter.c',
-                      'src/core/channel/connected_channel.c',
-                      'src/core/channel/http_client_filter.c',
-                      'src/core/channel/http_server_filter.c',
-                      'src/core/channel/subchannel_call_holder.c',
-                      'src/core/client_config/client_config.c',
-                      'src/core/client_config/connector.c',
-                      'src/core/client_config/default_initial_connect_string.c',
-                      'src/core/client_config/initial_connect_string.c',
-                      'src/core/client_config/lb_policies/load_balancer_api.c',
-                      'src/core/client_config/lb_policies/pick_first.c',
-                      'src/core/client_config/lb_policies/round_robin.c',
-                      'src/core/client_config/lb_policy.c',
-                      'src/core/client_config/lb_policy_factory.c',
-                      'src/core/client_config/lb_policy_registry.c',
-                      'src/core/client_config/resolver.c',
-                      'src/core/client_config/resolver_factory.c',
-                      'src/core/client_config/resolver_registry.c',
-                      'src/core/client_config/resolvers/dns_resolver.c',
-                      'src/core/client_config/resolvers/sockaddr_resolver.c',
-                      'src/core/client_config/subchannel.c',
-                      'src/core/client_config/subchannel_factory.c',
-                      'src/core/client_config/subchannel_index.c',
-                      'src/core/client_config/uri_parser.c',
-                      'src/core/compression/compression_algorithm.c',
-                      'src/core/compression/message_compress.c',
-                      'src/core/debug/trace.c',
-                      'src/core/httpcli/format_request.c',
-                      'src/core/httpcli/httpcli.c',
-                      'src/core/httpcli/parser.c',
-                      'src/core/iomgr/closure.c',
-                      'src/core/iomgr/endpoint.c',
-                      'src/core/iomgr/endpoint_pair_posix.c',
-                      'src/core/iomgr/endpoint_pair_windows.c',
-                      'src/core/iomgr/ev_poll_and_epoll_posix.c',
-                      'src/core/iomgr/ev_posix.c',
-                      'src/core/iomgr/exec_ctx.c',
-                      'src/core/iomgr/executor.c',
-                      'src/core/iomgr/iocp_windows.c',
-                      'src/core/iomgr/iomgr.c',
-                      'src/core/iomgr/iomgr_posix.c',
-                      'src/core/iomgr/iomgr_windows.c',
-                      'src/core/iomgr/pollset_set_windows.c',
-                      'src/core/iomgr/pollset_windows.c',
-                      'src/core/iomgr/resolve_address_posix.c',
-                      'src/core/iomgr/resolve_address_windows.c',
-                      'src/core/iomgr/sockaddr_utils.c',
-                      'src/core/iomgr/socket_utils_common_posix.c',
-                      'src/core/iomgr/socket_utils_linux.c',
-                      'src/core/iomgr/socket_utils_posix.c',
-                      'src/core/iomgr/socket_windows.c',
-                      'src/core/iomgr/tcp_client_posix.c',
-                      'src/core/iomgr/tcp_client_windows.c',
-                      'src/core/iomgr/tcp_posix.c',
-                      'src/core/iomgr/tcp_server_posix.c',
-                      'src/core/iomgr/tcp_server_windows.c',
-                      'src/core/iomgr/tcp_windows.c',
-                      'src/core/iomgr/time_averaged_stats.c',
-                      'src/core/iomgr/timer.c',
-                      'src/core/iomgr/timer_heap.c',
-                      'src/core/iomgr/udp_server.c',
-                      'src/core/iomgr/wakeup_fd_eventfd.c',
-                      'src/core/iomgr/wakeup_fd_nospecial.c',
-                      'src/core/iomgr/wakeup_fd_pipe.c',
-                      'src/core/iomgr/wakeup_fd_posix.c',
-                      'src/core/iomgr/workqueue_posix.c',
-                      'src/core/iomgr/workqueue_windows.c',
-                      'src/core/json/json.c',
-                      'src/core/json/json_reader.c',
-                      'src/core/json/json_string.c',
-                      'src/core/json/json_writer.c',
-                      'src/core/proto/grpc/lb/v0/load_balancer.pb.c',
-                      'src/core/surface/alarm.c',
-                      'src/core/surface/api_trace.c',
-                      'src/core/surface/byte_buffer.c',
-                      'src/core/surface/byte_buffer_reader.c',
-                      'src/core/surface/call.c',
-                      'src/core/surface/call_details.c',
-                      'src/core/surface/call_log_batch.c',
-                      'src/core/surface/channel.c',
-                      'src/core/surface/channel_connectivity.c',
-                      'src/core/surface/channel_create.c',
-                      'src/core/surface/channel_init.c',
-                      'src/core/surface/channel_ping.c',
-                      'src/core/surface/channel_stack_type.c',
-                      'src/core/surface/completion_queue.c',
-                      'src/core/surface/event_string.c',
-                      'src/core/surface/init.c',
-                      'src/core/surface/lame_client.c',
-                      'src/core/surface/metadata_array.c',
-                      'src/core/surface/server.c',
-                      'src/core/surface/server_chttp2.c',
-                      'src/core/surface/validate_metadata.c',
-                      'src/core/surface/version.c',
-                      'src/core/transport/byte_stream.c',
-                      'src/core/transport/chttp2/alpn.c',
-                      'src/core/transport/chttp2/bin_encoder.c',
-                      'src/core/transport/chttp2/frame_data.c',
-                      'src/core/transport/chttp2/frame_goaway.c',
-                      'src/core/transport/chttp2/frame_ping.c',
-                      'src/core/transport/chttp2/frame_rst_stream.c',
-                      'src/core/transport/chttp2/frame_settings.c',
-                      'src/core/transport/chttp2/frame_window_update.c',
-                      'src/core/transport/chttp2/hpack_encoder.c',
-                      'src/core/transport/chttp2/hpack_parser.c',
-                      'src/core/transport/chttp2/hpack_table.c',
-                      'src/core/transport/chttp2/huffsyms.c',
-                      'src/core/transport/chttp2/incoming_metadata.c',
-                      'src/core/transport/chttp2/parsing.c',
-                      'src/core/transport/chttp2/status_conversion.c',
-                      'src/core/transport/chttp2/stream_lists.c',
-                      'src/core/transport/chttp2/stream_map.c',
-                      'src/core/transport/chttp2/timeout_encoding.c',
-                      'src/core/transport/chttp2/varint.c',
-                      'src/core/transport/chttp2/writing.c',
-                      'src/core/transport/chttp2_transport.c',
-                      'src/core/transport/connectivity_state.c',
-                      'src/core/transport/metadata.c',
-                      'src/core/transport/metadata_batch.c',
-                      'src/core/transport/static_metadata.c',
-                      'src/core/transport/transport.c',
-                      'src/core/transport/transport_op_string.c',
-                      'src/core/httpcli/httpcli_security_connector.c',
-                      'src/core/security/b64.c',
-                      'src/core/security/client_auth_filter.c',
-                      'src/core/security/credentials.c',
-                      'src/core/security/credentials_metadata.c',
-                      'src/core/security/credentials_posix.c',
-                      'src/core/security/credentials_win32.c',
-                      'src/core/security/google_default_credentials.c',
-                      'src/core/security/handshake.c',
-                      'src/core/security/json_token.c',
-                      'src/core/security/jwt_verifier.c',
-                      'src/core/security/secure_endpoint.c',
-                      'src/core/security/security_connector.c',
-                      'src/core/security/security_context.c',
-                      'src/core/security/server_auth_filter.c',
-                      'src/core/security/server_secure_chttp2.c',
-                      'src/core/surface/init_secure.c',
-                      'src/core/surface/secure_channel_create.c',
-                      'src/core/tsi/fake_transport_security.c',
-                      'src/core/tsi/ssl_transport_security.c',
-                      'src/core/tsi/transport_security.c',
-                      'src/core/census/context.c',
-                      'src/core/census/initialize.c',
-                      'src/core/census/mlog.c',
-                      'src/core/census/operation.c',
-                      'src/core/census/placeholders.c',
-                      'src/core/census/tracing.c',
+                      'src/core/lib/census/grpc_context.c',
+                      'src/core/lib/census/grpc_filter.c',
+                      'src/core/lib/census/grpc_plugin.c',
+                      'src/core/lib/channel/channel_args.c',
+                      'src/core/lib/channel/channel_stack.c',
+                      'src/core/lib/channel/channel_stack_builder.c',
+                      'src/core/lib/channel/client_channel.c',
+                      'src/core/lib/channel/compress_filter.c',
+                      'src/core/lib/channel/connected_channel.c',
+                      'src/core/lib/channel/http_client_filter.c',
+                      'src/core/lib/channel/http_server_filter.c',
+                      'src/core/lib/channel/subchannel_call_holder.c',
+                      'src/core/lib/client_config/client_config.c',
+                      'src/core/lib/client_config/connector.c',
+                      'src/core/lib/client_config/default_initial_connect_string.c',
+                      'src/core/lib/client_config/initial_connect_string.c',
+                      'src/core/lib/client_config/lb_policies/load_balancer_api.c',
+                      'src/core/lib/client_config/lb_policies/pick_first.c',
+                      'src/core/lib/client_config/lb_policies/round_robin.c',
+                      'src/core/lib/client_config/lb_policy.c',
+                      'src/core/lib/client_config/lb_policy_factory.c',
+                      'src/core/lib/client_config/lb_policy_registry.c',
+                      'src/core/lib/client_config/resolver.c',
+                      'src/core/lib/client_config/resolver_factory.c',
+                      'src/core/lib/client_config/resolver_registry.c',
+                      'src/core/lib/client_config/resolvers/dns_resolver.c',
+                      'src/core/lib/client_config/resolvers/sockaddr_resolver.c',
+                      'src/core/lib/client_config/subchannel.c',
+                      'src/core/lib/client_config/subchannel_factory.c',
+                      'src/core/lib/client_config/subchannel_index.c',
+                      'src/core/lib/client_config/uri_parser.c',
+                      'src/core/lib/compression/compression_algorithm.c',
+                      'src/core/lib/compression/message_compress.c',
+                      'src/core/lib/debug/trace.c',
+                      'src/core/lib/http/format_request.c',
+                      'src/core/lib/http/httpcli.c',
+                      'src/core/lib/http/parser.c',
+                      'src/core/lib/iomgr/closure.c',
+                      'src/core/lib/iomgr/endpoint.c',
+                      'src/core/lib/iomgr/endpoint_pair_posix.c',
+                      'src/core/lib/iomgr/endpoint_pair_windows.c',
+                      'src/core/lib/iomgr/ev_poll_and_epoll_posix.c',
+                      'src/core/lib/iomgr/ev_posix.c',
+                      'src/core/lib/iomgr/exec_ctx.c',
+                      'src/core/lib/iomgr/executor.c',
+                      'src/core/lib/iomgr/iocp_windows.c',
+                      'src/core/lib/iomgr/iomgr.c',
+                      'src/core/lib/iomgr/iomgr_posix.c',
+                      'src/core/lib/iomgr/iomgr_windows.c',
+                      'src/core/lib/iomgr/pollset_set_windows.c',
+                      'src/core/lib/iomgr/pollset_windows.c',
+                      'src/core/lib/iomgr/resolve_address_posix.c',
+                      'src/core/lib/iomgr/resolve_address_windows.c',
+                      'src/core/lib/iomgr/sockaddr_utils.c',
+                      'src/core/lib/iomgr/socket_utils_common_posix.c',
+                      'src/core/lib/iomgr/socket_utils_linux.c',
+                      'src/core/lib/iomgr/socket_utils_posix.c',
+                      'src/core/lib/iomgr/socket_windows.c',
+                      'src/core/lib/iomgr/tcp_client_posix.c',
+                      'src/core/lib/iomgr/tcp_client_windows.c',
+                      'src/core/lib/iomgr/tcp_posix.c',
+                      'src/core/lib/iomgr/tcp_server_posix.c',
+                      'src/core/lib/iomgr/tcp_server_windows.c',
+                      'src/core/lib/iomgr/tcp_windows.c',
+                      'src/core/lib/iomgr/time_averaged_stats.c',
+                      'src/core/lib/iomgr/timer.c',
+                      'src/core/lib/iomgr/timer_heap.c',
+                      'src/core/lib/iomgr/udp_server.c',
+                      'src/core/lib/iomgr/unix_sockets_posix.c',
+                      'src/core/lib/iomgr/unix_sockets_posix_noop.c',
+                      'src/core/lib/iomgr/wakeup_fd_eventfd.c',
+                      'src/core/lib/iomgr/wakeup_fd_nospecial.c',
+                      'src/core/lib/iomgr/wakeup_fd_pipe.c',
+                      'src/core/lib/iomgr/wakeup_fd_posix.c',
+                      'src/core/lib/iomgr/workqueue_posix.c',
+                      'src/core/lib/iomgr/workqueue_windows.c',
+                      'src/core/lib/json/json.c',
+                      'src/core/lib/json/json_reader.c',
+                      'src/core/lib/json/json_string.c',
+                      'src/core/lib/json/json_writer.c',
+                      'src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c',
+                      'src/core/lib/surface/alarm.c',
+                      'src/core/lib/surface/api_trace.c',
+                      'src/core/lib/surface/byte_buffer.c',
+                      'src/core/lib/surface/byte_buffer_reader.c',
+                      'src/core/lib/surface/call.c',
+                      'src/core/lib/surface/call_details.c',
+                      'src/core/lib/surface/call_log_batch.c',
+                      'src/core/lib/surface/channel.c',
+                      'src/core/lib/surface/channel_connectivity.c',
+                      'src/core/lib/surface/channel_create.c',
+                      'src/core/lib/surface/channel_init.c',
+                      'src/core/lib/surface/channel_ping.c',
+                      'src/core/lib/surface/channel_stack_type.c',
+                      'src/core/lib/surface/completion_queue.c',
+                      'src/core/lib/surface/event_string.c',
+                      'src/core/lib/surface/init.c',
+                      'src/core/lib/surface/lame_client.c',
+                      'src/core/lib/surface/metadata_array.c',
+                      'src/core/lib/surface/server.c',
+                      'src/core/lib/surface/server_chttp2.c',
+                      'src/core/lib/surface/validate_metadata.c',
+                      'src/core/lib/surface/version.c',
+                      'src/core/lib/transport/byte_stream.c',
+                      'src/core/lib/transport/chttp2/alpn.c',
+                      'src/core/lib/transport/chttp2/bin_encoder.c',
+                      'src/core/lib/transport/chttp2/frame_data.c',
+                      'src/core/lib/transport/chttp2/frame_goaway.c',
+                      'src/core/lib/transport/chttp2/frame_ping.c',
+                      'src/core/lib/transport/chttp2/frame_rst_stream.c',
+                      'src/core/lib/transport/chttp2/frame_settings.c',
+                      'src/core/lib/transport/chttp2/frame_window_update.c',
+                      'src/core/lib/transport/chttp2/hpack_encoder.c',
+                      'src/core/lib/transport/chttp2/hpack_parser.c',
+                      'src/core/lib/transport/chttp2/hpack_table.c',
+                      'src/core/lib/transport/chttp2/huffsyms.c',
+                      'src/core/lib/transport/chttp2/incoming_metadata.c',
+                      'src/core/lib/transport/chttp2/parsing.c',
+                      'src/core/lib/transport/chttp2/status_conversion.c',
+                      'src/core/lib/transport/chttp2/stream_lists.c',
+                      'src/core/lib/transport/chttp2/stream_map.c',
+                      'src/core/lib/transport/chttp2/timeout_encoding.c',
+                      'src/core/lib/transport/chttp2/varint.c',
+                      'src/core/lib/transport/chttp2/writing.c',
+                      'src/core/lib/transport/chttp2_transport.c',
+                      'src/core/lib/transport/connectivity_state.c',
+                      'src/core/lib/transport/metadata.c',
+                      'src/core/lib/transport/metadata_batch.c',
+                      'src/core/lib/transport/static_metadata.c',
+                      'src/core/lib/transport/transport.c',
+                      'src/core/lib/transport/transport_op_string.c',
+                      'src/core/lib/http/httpcli_security_connector.c',
+                      'src/core/lib/security/b64.c',
+                      'src/core/lib/security/client_auth_filter.c',
+                      'src/core/lib/security/credentials.c',
+                      'src/core/lib/security/credentials_metadata.c',
+                      'src/core/lib/security/credentials_posix.c',
+                      'src/core/lib/security/credentials_win32.c',
+                      'src/core/lib/security/google_default_credentials.c',
+                      'src/core/lib/security/handshake.c',
+                      'src/core/lib/security/json_token.c',
+                      'src/core/lib/security/jwt_verifier.c',
+                      'src/core/lib/security/secure_endpoint.c',
+                      'src/core/lib/security/security_connector.c',
+                      'src/core/lib/security/security_context.c',
+                      'src/core/lib/security/server_auth_filter.c',
+                      'src/core/lib/security/server_secure_chttp2.c',
+                      'src/core/lib/surface/init_secure.c',
+                      'src/core/lib/surface/secure_channel_create.c',
+                      'src/core/lib/tsi/fake_transport_security.c',
+                      'src/core/lib/tsi/ssl_transport_security.c',
+                      'src/core/lib/tsi/transport_security.c',
+                      'src/core/lib/census/context.c',
+                      'src/core/lib/census/initialize.c',
+                      'src/core/lib/census/mlog.c',
+                      'src/core/lib/census/operation.c',
+                      'src/core/lib/census/placeholders.c',
+                      'src/core/lib/census/tracing.c',
                       'third_party/nanopb/pb_common.c',
                       'third_party/nanopb/pb_decode.c',
                       'third_party/nanopb/pb_encode.c'
 
-    ss.private_header_files = 'src/core/profiling/timers.h',
-                              'src/core/support/backoff.h',
-                              'src/core/support/block_annotate.h',
-                              'src/core/support/env.h',
-                              'src/core/support/load_file.h',
-                              'src/core/support/murmur_hash.h',
-                              'src/core/support/stack_lockfree.h',
-                              'src/core/support/string.h',
-                              'src/core/support/string_win32.h',
-                              'src/core/support/thd_internal.h',
-                              'src/core/support/time_precise.h',
-                              'src/core/support/tmpfile.h',
-                              'src/core/census/grpc_filter.h',
-                              'src/core/census/grpc_plugin.h',
-                              'src/core/channel/channel_args.h',
-                              'src/core/channel/channel_stack.h',
-                              'src/core/channel/channel_stack_builder.h',
-                              'src/core/channel/client_channel.h',
-                              'src/core/channel/client_uchannel.h',
-                              'src/core/channel/compress_filter.h',
-                              'src/core/channel/connected_channel.h',
-                              'src/core/channel/context.h',
-                              'src/core/channel/http_client_filter.h',
-                              'src/core/channel/http_server_filter.h',
-                              'src/core/channel/subchannel_call_holder.h',
-                              'src/core/client_config/client_config.h',
-                              'src/core/client_config/connector.h',
-                              'src/core/client_config/initial_connect_string.h',
-                              'src/core/client_config/lb_policies/load_balancer_api.h',
-                              'src/core/client_config/lb_policies/pick_first.h',
-                              'src/core/client_config/lb_policies/round_robin.h',
-                              'src/core/client_config/lb_policy.h',
-                              'src/core/client_config/lb_policy_factory.h',
-                              'src/core/client_config/lb_policy_registry.h',
-                              'src/core/client_config/resolver.h',
-                              'src/core/client_config/resolver_factory.h',
-                              'src/core/client_config/resolver_registry.h',
-                              'src/core/client_config/resolvers/dns_resolver.h',
-                              'src/core/client_config/resolvers/sockaddr_resolver.h',
-                              'src/core/client_config/subchannel.h',
-                              'src/core/client_config/subchannel_factory.h',
-                              'src/core/client_config/subchannel_index.h',
-                              'src/core/client_config/uri_parser.h',
-                              'src/core/compression/algorithm_metadata.h',
-                              'src/core/compression/message_compress.h',
-                              'src/core/debug/trace.h',
-                              'src/core/httpcli/format_request.h',
-                              'src/core/httpcli/httpcli.h',
-                              'src/core/httpcli/parser.h',
-                              'src/core/iomgr/closure.h',
-                              'src/core/iomgr/endpoint.h',
-                              'src/core/iomgr/endpoint_pair.h',
-                              'src/core/iomgr/ev_poll_and_epoll_posix.h',
-                              'src/core/iomgr/ev_posix.h',
-                              'src/core/iomgr/exec_ctx.h',
-                              'src/core/iomgr/executor.h',
-                              'src/core/iomgr/iocp_windows.h',
-                              'src/core/iomgr/iomgr.h',
-                              'src/core/iomgr/iomgr_internal.h',
-                              'src/core/iomgr/iomgr_posix.h',
-                              'src/core/iomgr/pollset.h',
-                              'src/core/iomgr/pollset_set.h',
-                              'src/core/iomgr/pollset_set_windows.h',
-                              'src/core/iomgr/pollset_windows.h',
-                              'src/core/iomgr/resolve_address.h',
-                              'src/core/iomgr/sockaddr.h',
-                              'src/core/iomgr/sockaddr_posix.h',
-                              'src/core/iomgr/sockaddr_utils.h',
-                              'src/core/iomgr/sockaddr_win32.h',
-                              'src/core/iomgr/socket_utils_posix.h',
-                              'src/core/iomgr/socket_windows.h',
-                              'src/core/iomgr/tcp_client.h',
-                              'src/core/iomgr/tcp_posix.h',
-                              'src/core/iomgr/tcp_server.h',
-                              'src/core/iomgr/tcp_windows.h',
-                              'src/core/iomgr/time_averaged_stats.h',
-                              'src/core/iomgr/timer.h',
-                              'src/core/iomgr/timer_heap.h',
-                              'src/core/iomgr/udp_server.h',
-                              'src/core/iomgr/wakeup_fd_pipe.h',
-                              'src/core/iomgr/wakeup_fd_posix.h',
-                              'src/core/iomgr/workqueue.h',
-                              'src/core/iomgr/workqueue_posix.h',
-                              'src/core/iomgr/workqueue_windows.h',
-                              'src/core/json/json.h',
-                              'src/core/json/json_common.h',
-                              'src/core/json/json_reader.h',
-                              'src/core/json/json_writer.h',
-                              'src/core/proto/grpc/lb/v0/load_balancer.pb.h',
-                              'src/core/statistics/census_interface.h',
-                              'src/core/statistics/census_rpc_stats.h',
-                              'src/core/surface/api_trace.h',
-                              'src/core/surface/call.h',
-                              'src/core/surface/call_test_only.h',
-                              'src/core/surface/channel.h',
-                              'src/core/surface/channel_init.h',
-                              'src/core/surface/channel_stack_type.h',
-                              'src/core/surface/completion_queue.h',
-                              'src/core/surface/event_string.h',
-                              'src/core/surface/init.h',
-                              'src/core/surface/lame_client.h',
-                              'src/core/surface/server.h',
-                              'src/core/surface/surface_trace.h',
-                              'src/core/transport/byte_stream.h',
-                              'src/core/transport/chttp2/alpn.h',
-                              'src/core/transport/chttp2/bin_encoder.h',
-                              'src/core/transport/chttp2/frame.h',
-                              'src/core/transport/chttp2/frame_data.h',
-                              'src/core/transport/chttp2/frame_goaway.h',
-                              'src/core/transport/chttp2/frame_ping.h',
-                              'src/core/transport/chttp2/frame_rst_stream.h',
-                              'src/core/transport/chttp2/frame_settings.h',
-                              'src/core/transport/chttp2/frame_window_update.h',
-                              'src/core/transport/chttp2/hpack_encoder.h',
-                              'src/core/transport/chttp2/hpack_parser.h',
-                              'src/core/transport/chttp2/hpack_table.h',
-                              'src/core/transport/chttp2/http2_errors.h',
-                              'src/core/transport/chttp2/huffsyms.h',
-                              'src/core/transport/chttp2/incoming_metadata.h',
-                              'src/core/transport/chttp2/internal.h',
-                              'src/core/transport/chttp2/status_conversion.h',
-                              'src/core/transport/chttp2/stream_map.h',
-                              'src/core/transport/chttp2/timeout_encoding.h',
-                              'src/core/transport/chttp2/varint.h',
-                              'src/core/transport/chttp2_transport.h',
-                              'src/core/transport/connectivity_state.h',
-                              'src/core/transport/metadata.h',
-                              'src/core/transport/metadata_batch.h',
-                              'src/core/transport/static_metadata.h',
-                              'src/core/transport/transport.h',
-                              'src/core/transport/transport_impl.h',
-                              'src/core/security/auth_filters.h',
-                              'src/core/security/b64.h',
-                              'src/core/security/credentials.h',
-                              'src/core/security/handshake.h',
-                              'src/core/security/json_token.h',
-                              'src/core/security/jwt_verifier.h',
-                              'src/core/security/secure_endpoint.h',
-                              'src/core/security/security_connector.h',
-                              'src/core/security/security_context.h',
-                              'src/core/tsi/fake_transport_security.h',
-                              'src/core/tsi/ssl_transport_security.h',
-                              'src/core/tsi/ssl_types.h',
-                              'src/core/tsi/transport_security.h',
-                              'src/core/tsi/transport_security_interface.h',
-                              'src/core/census/aggregation.h',
-                              'src/core/census/mlog.h',
-                              'src/core/census/rpc_metric_id.h',
+    ss.private_header_files = 'src/core/lib/profiling/timers.h',
+                              'src/core/lib/support/backoff.h',
+                              'src/core/lib/support/block_annotate.h',
+                              'src/core/lib/support/env.h',
+                              'src/core/lib/support/load_file.h',
+                              'src/core/lib/support/murmur_hash.h',
+                              'src/core/lib/support/stack_lockfree.h',
+                              'src/core/lib/support/string.h',
+                              'src/core/lib/support/string_win32.h',
+                              'src/core/lib/support/thd_internal.h',
+                              'src/core/lib/support/time_precise.h',
+                              'src/core/lib/support/tmpfile.h',
+                              'src/core/lib/census/grpc_filter.h',
+                              'src/core/lib/census/grpc_plugin.h',
+                              'src/core/lib/channel/channel_args.h',
+                              'src/core/lib/channel/channel_stack.h',
+                              'src/core/lib/channel/channel_stack_builder.h',
+                              'src/core/lib/channel/client_channel.h',
+                              'src/core/lib/channel/compress_filter.h',
+                              'src/core/lib/channel/connected_channel.h',
+                              'src/core/lib/channel/context.h',
+                              'src/core/lib/channel/http_client_filter.h',
+                              'src/core/lib/channel/http_server_filter.h',
+                              'src/core/lib/channel/subchannel_call_holder.h',
+                              'src/core/lib/client_config/client_config.h',
+                              'src/core/lib/client_config/connector.h',
+                              'src/core/lib/client_config/initial_connect_string.h',
+                              'src/core/lib/client_config/lb_policies/load_balancer_api.h',
+                              'src/core/lib/client_config/lb_policies/pick_first.h',
+                              'src/core/lib/client_config/lb_policies/round_robin.h',
+                              'src/core/lib/client_config/lb_policy.h',
+                              'src/core/lib/client_config/lb_policy_factory.h',
+                              'src/core/lib/client_config/lb_policy_registry.h',
+                              'src/core/lib/client_config/resolver.h',
+                              'src/core/lib/client_config/resolver_factory.h',
+                              'src/core/lib/client_config/resolver_registry.h',
+                              'src/core/lib/client_config/resolvers/dns_resolver.h',
+                              'src/core/lib/client_config/resolvers/sockaddr_resolver.h',
+                              'src/core/lib/client_config/subchannel.h',
+                              'src/core/lib/client_config/subchannel_factory.h',
+                              'src/core/lib/client_config/subchannel_index.h',
+                              'src/core/lib/client_config/uri_parser.h',
+                              'src/core/lib/compression/algorithm_metadata.h',
+                              'src/core/lib/compression/message_compress.h',
+                              'src/core/lib/debug/trace.h',
+                              'src/core/lib/http/format_request.h',
+                              'src/core/lib/http/httpcli.h',
+                              'src/core/lib/http/parser.h',
+                              'src/core/lib/iomgr/closure.h',
+                              'src/core/lib/iomgr/endpoint.h',
+                              'src/core/lib/iomgr/endpoint_pair.h',
+                              'src/core/lib/iomgr/ev_poll_and_epoll_posix.h',
+                              'src/core/lib/iomgr/ev_posix.h',
+                              'src/core/lib/iomgr/exec_ctx.h',
+                              'src/core/lib/iomgr/executor.h',
+                              'src/core/lib/iomgr/iocp_windows.h',
+                              'src/core/lib/iomgr/iomgr.h',
+                              'src/core/lib/iomgr/iomgr_internal.h',
+                              'src/core/lib/iomgr/iomgr_posix.h',
+                              'src/core/lib/iomgr/pollset.h',
+                              'src/core/lib/iomgr/pollset_posix.h',
+                              'src/core/lib/iomgr/pollset_set.h',
+                              'src/core/lib/iomgr/pollset_set_posix.h',
+                              'src/core/lib/iomgr/pollset_set_windows.h',
+                              'src/core/lib/iomgr/pollset_windows.h',
+                              'src/core/lib/iomgr/resolve_address.h',
+                              'src/core/lib/iomgr/sockaddr.h',
+                              'src/core/lib/iomgr/sockaddr_posix.h',
+                              'src/core/lib/iomgr/sockaddr_utils.h',
+                              'src/core/lib/iomgr/sockaddr_win32.h',
+                              'src/core/lib/iomgr/socket_utils_posix.h',
+                              'src/core/lib/iomgr/socket_windows.h',
+                              'src/core/lib/iomgr/tcp_client.h',
+                              'src/core/lib/iomgr/tcp_posix.h',
+                              'src/core/lib/iomgr/tcp_server.h',
+                              'src/core/lib/iomgr/tcp_windows.h',
+                              'src/core/lib/iomgr/time_averaged_stats.h',
+                              'src/core/lib/iomgr/timer.h',
+                              'src/core/lib/iomgr/timer_heap.h',
+                              'src/core/lib/iomgr/udp_server.h',
+                              'src/core/lib/iomgr/unix_sockets_posix.h',
+                              'src/core/lib/iomgr/wakeup_fd_pipe.h',
+                              'src/core/lib/iomgr/wakeup_fd_posix.h',
+                              'src/core/lib/iomgr/workqueue.h',
+                              'src/core/lib/iomgr/workqueue_posix.h',
+                              'src/core/lib/iomgr/workqueue_windows.h',
+                              'src/core/lib/json/json.h',
+                              'src/core/lib/json/json_common.h',
+                              'src/core/lib/json/json_reader.h',
+                              'src/core/lib/json/json_writer.h',
+                              'src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h',
+                              'src/core/lib/statistics/census_interface.h',
+                              'src/core/lib/statistics/census_rpc_stats.h',
+                              'src/core/lib/surface/api_trace.h',
+                              'src/core/lib/surface/call.h',
+                              'src/core/lib/surface/call_test_only.h',
+                              'src/core/lib/surface/channel.h',
+                              'src/core/lib/surface/channel_init.h',
+                              'src/core/lib/surface/channel_stack_type.h',
+                              'src/core/lib/surface/completion_queue.h',
+                              'src/core/lib/surface/event_string.h',
+                              'src/core/lib/surface/init.h',
+                              'src/core/lib/surface/lame_client.h',
+                              'src/core/lib/surface/server.h',
+                              'src/core/lib/surface/surface_trace.h',
+                              'src/core/lib/transport/byte_stream.h',
+                              'src/core/lib/transport/chttp2/alpn.h',
+                              'src/core/lib/transport/chttp2/bin_encoder.h',
+                              'src/core/lib/transport/chttp2/frame.h',
+                              'src/core/lib/transport/chttp2/frame_data.h',
+                              'src/core/lib/transport/chttp2/frame_goaway.h',
+                              'src/core/lib/transport/chttp2/frame_ping.h',
+                              'src/core/lib/transport/chttp2/frame_rst_stream.h',
+                              'src/core/lib/transport/chttp2/frame_settings.h',
+                              'src/core/lib/transport/chttp2/frame_window_update.h',
+                              'src/core/lib/transport/chttp2/hpack_encoder.h',
+                              'src/core/lib/transport/chttp2/hpack_parser.h',
+                              'src/core/lib/transport/chttp2/hpack_table.h',
+                              'src/core/lib/transport/chttp2/http2_errors.h',
+                              'src/core/lib/transport/chttp2/huffsyms.h',
+                              'src/core/lib/transport/chttp2/incoming_metadata.h',
+                              'src/core/lib/transport/chttp2/internal.h',
+                              'src/core/lib/transport/chttp2/status_conversion.h',
+                              'src/core/lib/transport/chttp2/stream_map.h',
+                              'src/core/lib/transport/chttp2/timeout_encoding.h',
+                              'src/core/lib/transport/chttp2/varint.h',
+                              'src/core/lib/transport/chttp2_transport.h',
+                              'src/core/lib/transport/connectivity_state.h',
+                              'src/core/lib/transport/metadata.h',
+                              'src/core/lib/transport/metadata_batch.h',
+                              'src/core/lib/transport/static_metadata.h',
+                              'src/core/lib/transport/transport.h',
+                              'src/core/lib/transport/transport_impl.h',
+                              'src/core/lib/security/auth_filters.h',
+                              'src/core/lib/security/b64.h',
+                              'src/core/lib/security/credentials.h',
+                              'src/core/lib/security/handshake.h',
+                              'src/core/lib/security/json_token.h',
+                              'src/core/lib/security/jwt_verifier.h',
+                              'src/core/lib/security/secure_endpoint.h',
+                              'src/core/lib/security/security_connector.h',
+                              'src/core/lib/security/security_context.h',
+                              'src/core/lib/tsi/fake_transport_security.h',
+                              'src/core/lib/tsi/ssl_transport_security.h',
+                              'src/core/lib/tsi/ssl_types.h',
+                              'src/core/lib/tsi/transport_security.h',
+                              'src/core/lib/tsi/transport_security_interface.h',
+                              'src/core/lib/census/aggregation.h',
+                              'src/core/lib/census/mlog.h',
+                              'src/core/lib/census/rpc_metric_id.h',
                               'third_party/nanopb/pb.h',
                               'third_party/nanopb/pb_common.h',
                               'third_party/nanopb/pb_decode.h',
diff --git a/grpc.gemspec b/grpc.gemspec
index 7742be1..c918149 100755
--- a/grpc.gemspec
+++ b/grpc.gemspec
@@ -88,62 +88,62 @@
   s.files += %w( include/grpc/impl/codegen/sync_posix.h )
   s.files += %w( include/grpc/impl/codegen/sync_win32.h )
   s.files += %w( include/grpc/impl/codegen/time.h )
-  s.files += %w( src/core/profiling/timers.h )
-  s.files += %w( src/core/support/backoff.h )
-  s.files += %w( src/core/support/block_annotate.h )
-  s.files += %w( src/core/support/env.h )
-  s.files += %w( src/core/support/load_file.h )
-  s.files += %w( src/core/support/murmur_hash.h )
-  s.files += %w( src/core/support/stack_lockfree.h )
-  s.files += %w( src/core/support/string.h )
-  s.files += %w( src/core/support/string_win32.h )
-  s.files += %w( src/core/support/thd_internal.h )
-  s.files += %w( src/core/support/time_precise.h )
-  s.files += %w( src/core/support/tmpfile.h )
-  s.files += %w( src/core/profiling/basic_timers.c )
-  s.files += %w( src/core/profiling/stap_timers.c )
-  s.files += %w( src/core/support/alloc.c )
-  s.files += %w( src/core/support/avl.c )
-  s.files += %w( src/core/support/backoff.c )
-  s.files += %w( src/core/support/cmdline.c )
-  s.files += %w( src/core/support/cpu_iphone.c )
-  s.files += %w( src/core/support/cpu_linux.c )
-  s.files += %w( src/core/support/cpu_posix.c )
-  s.files += %w( src/core/support/cpu_windows.c )
-  s.files += %w( src/core/support/env_linux.c )
-  s.files += %w( src/core/support/env_posix.c )
-  s.files += %w( src/core/support/env_win32.c )
-  s.files += %w( src/core/support/histogram.c )
-  s.files += %w( src/core/support/host_port.c )
-  s.files += %w( src/core/support/load_file.c )
-  s.files += %w( src/core/support/log.c )
-  s.files += %w( src/core/support/log_android.c )
-  s.files += %w( src/core/support/log_linux.c )
-  s.files += %w( src/core/support/log_posix.c )
-  s.files += %w( src/core/support/log_win32.c )
-  s.files += %w( src/core/support/murmur_hash.c )
-  s.files += %w( src/core/support/slice.c )
-  s.files += %w( src/core/support/slice_buffer.c )
-  s.files += %w( src/core/support/stack_lockfree.c )
-  s.files += %w( src/core/support/string.c )
-  s.files += %w( src/core/support/string_posix.c )
-  s.files += %w( src/core/support/string_win32.c )
-  s.files += %w( src/core/support/subprocess_posix.c )
-  s.files += %w( src/core/support/subprocess_windows.c )
-  s.files += %w( src/core/support/sync.c )
-  s.files += %w( src/core/support/sync_posix.c )
-  s.files += %w( src/core/support/sync_win32.c )
-  s.files += %w( src/core/support/thd.c )
-  s.files += %w( src/core/support/thd_posix.c )
-  s.files += %w( src/core/support/thd_win32.c )
-  s.files += %w( src/core/support/time.c )
-  s.files += %w( src/core/support/time_posix.c )
-  s.files += %w( src/core/support/time_precise.c )
-  s.files += %w( src/core/support/time_win32.c )
-  s.files += %w( src/core/support/tls_pthread.c )
-  s.files += %w( src/core/support/tmpfile_posix.c )
-  s.files += %w( src/core/support/tmpfile_win32.c )
-  s.files += %w( src/core/support/wrap_memcpy.c )
+  s.files += %w( src/core/lib/profiling/timers.h )
+  s.files += %w( src/core/lib/support/backoff.h )
+  s.files += %w( src/core/lib/support/block_annotate.h )
+  s.files += %w( src/core/lib/support/env.h )
+  s.files += %w( src/core/lib/support/load_file.h )
+  s.files += %w( src/core/lib/support/murmur_hash.h )
+  s.files += %w( src/core/lib/support/stack_lockfree.h )
+  s.files += %w( src/core/lib/support/string.h )
+  s.files += %w( src/core/lib/support/string_win32.h )
+  s.files += %w( src/core/lib/support/thd_internal.h )
+  s.files += %w( src/core/lib/support/time_precise.h )
+  s.files += %w( src/core/lib/support/tmpfile.h )
+  s.files += %w( src/core/lib/profiling/basic_timers.c )
+  s.files += %w( src/core/lib/profiling/stap_timers.c )
+  s.files += %w( src/core/lib/support/alloc.c )
+  s.files += %w( src/core/lib/support/avl.c )
+  s.files += %w( src/core/lib/support/backoff.c )
+  s.files += %w( src/core/lib/support/cmdline.c )
+  s.files += %w( src/core/lib/support/cpu_iphone.c )
+  s.files += %w( src/core/lib/support/cpu_linux.c )
+  s.files += %w( src/core/lib/support/cpu_posix.c )
+  s.files += %w( src/core/lib/support/cpu_windows.c )
+  s.files += %w( src/core/lib/support/env_linux.c )
+  s.files += %w( src/core/lib/support/env_posix.c )
+  s.files += %w( src/core/lib/support/env_win32.c )
+  s.files += %w( src/core/lib/support/histogram.c )
+  s.files += %w( src/core/lib/support/host_port.c )
+  s.files += %w( src/core/lib/support/load_file.c )
+  s.files += %w( src/core/lib/support/log.c )
+  s.files += %w( src/core/lib/support/log_android.c )
+  s.files += %w( src/core/lib/support/log_linux.c )
+  s.files += %w( src/core/lib/support/log_posix.c )
+  s.files += %w( src/core/lib/support/log_win32.c )
+  s.files += %w( src/core/lib/support/murmur_hash.c )
+  s.files += %w( src/core/lib/support/slice.c )
+  s.files += %w( src/core/lib/support/slice_buffer.c )
+  s.files += %w( src/core/lib/support/stack_lockfree.c )
+  s.files += %w( src/core/lib/support/string.c )
+  s.files += %w( src/core/lib/support/string_posix.c )
+  s.files += %w( src/core/lib/support/string_win32.c )
+  s.files += %w( src/core/lib/support/subprocess_posix.c )
+  s.files += %w( src/core/lib/support/subprocess_windows.c )
+  s.files += %w( src/core/lib/support/sync.c )
+  s.files += %w( src/core/lib/support/sync_posix.c )
+  s.files += %w( src/core/lib/support/sync_win32.c )
+  s.files += %w( src/core/lib/support/thd.c )
+  s.files += %w( src/core/lib/support/thd_posix.c )
+  s.files += %w( src/core/lib/support/thd_win32.c )
+  s.files += %w( src/core/lib/support/time.c )
+  s.files += %w( src/core/lib/support/time_posix.c )
+  s.files += %w( src/core/lib/support/time_precise.c )
+  s.files += %w( src/core/lib/support/time_win32.c )
+  s.files += %w( src/core/lib/support/tls_pthread.c )
+  s.files += %w( src/core/lib/support/tmpfile_posix.c )
+  s.files += %w( src/core/lib/support/tmpfile_win32.c )
+  s.files += %w( src/core/lib/support/wrap_memcpy.c )
   s.files += %w( include/grpc/grpc_security.h )
   s.files += %w( include/grpc/byte_buffer.h )
   s.files += %w( include/grpc/byte_buffer_reader.h )
@@ -157,303 +157,306 @@
   s.files += %w( include/grpc/impl/codegen/propagation_bits.h )
   s.files += %w( include/grpc/impl/codegen/status.h )
   s.files += %w( include/grpc/census.h )
-  s.files += %w( src/core/census/grpc_filter.h )
-  s.files += %w( src/core/census/grpc_plugin.h )
-  s.files += %w( src/core/channel/channel_args.h )
-  s.files += %w( src/core/channel/channel_stack.h )
-  s.files += %w( src/core/channel/channel_stack_builder.h )
-  s.files += %w( src/core/channel/client_channel.h )
-  s.files += %w( src/core/channel/client_uchannel.h )
-  s.files += %w( src/core/channel/compress_filter.h )
-  s.files += %w( src/core/channel/connected_channel.h )
-  s.files += %w( src/core/channel/context.h )
-  s.files += %w( src/core/channel/http_client_filter.h )
-  s.files += %w( src/core/channel/http_server_filter.h )
-  s.files += %w( src/core/channel/subchannel_call_holder.h )
-  s.files += %w( src/core/client_config/client_config.h )
-  s.files += %w( src/core/client_config/connector.h )
-  s.files += %w( src/core/client_config/initial_connect_string.h )
-  s.files += %w( src/core/client_config/lb_policies/load_balancer_api.h )
-  s.files += %w( src/core/client_config/lb_policies/pick_first.h )
-  s.files += %w( src/core/client_config/lb_policies/round_robin.h )
-  s.files += %w( src/core/client_config/lb_policy.h )
-  s.files += %w( src/core/client_config/lb_policy_factory.h )
-  s.files += %w( src/core/client_config/lb_policy_registry.h )
-  s.files += %w( src/core/client_config/resolver.h )
-  s.files += %w( src/core/client_config/resolver_factory.h )
-  s.files += %w( src/core/client_config/resolver_registry.h )
-  s.files += %w( src/core/client_config/resolvers/dns_resolver.h )
-  s.files += %w( src/core/client_config/resolvers/sockaddr_resolver.h )
-  s.files += %w( src/core/client_config/subchannel.h )
-  s.files += %w( src/core/client_config/subchannel_factory.h )
-  s.files += %w( src/core/client_config/subchannel_index.h )
-  s.files += %w( src/core/client_config/uri_parser.h )
-  s.files += %w( src/core/compression/algorithm_metadata.h )
-  s.files += %w( src/core/compression/message_compress.h )
-  s.files += %w( src/core/debug/trace.h )
-  s.files += %w( src/core/httpcli/format_request.h )
-  s.files += %w( src/core/httpcli/httpcli.h )
-  s.files += %w( src/core/httpcli/parser.h )
-  s.files += %w( src/core/iomgr/closure.h )
-  s.files += %w( src/core/iomgr/endpoint.h )
-  s.files += %w( src/core/iomgr/endpoint_pair.h )
-  s.files += %w( src/core/iomgr/ev_poll_and_epoll_posix.h )
-  s.files += %w( src/core/iomgr/ev_posix.h )
-  s.files += %w( src/core/iomgr/exec_ctx.h )
-  s.files += %w( src/core/iomgr/executor.h )
-  s.files += %w( src/core/iomgr/iocp_windows.h )
-  s.files += %w( src/core/iomgr/iomgr.h )
-  s.files += %w( src/core/iomgr/iomgr_internal.h )
-  s.files += %w( src/core/iomgr/iomgr_posix.h )
-  s.files += %w( src/core/iomgr/pollset.h )
-  s.files += %w( src/core/iomgr/pollset_set.h )
-  s.files += %w( src/core/iomgr/pollset_set_windows.h )
-  s.files += %w( src/core/iomgr/pollset_windows.h )
-  s.files += %w( src/core/iomgr/resolve_address.h )
-  s.files += %w( src/core/iomgr/sockaddr.h )
-  s.files += %w( src/core/iomgr/sockaddr_posix.h )
-  s.files += %w( src/core/iomgr/sockaddr_utils.h )
-  s.files += %w( src/core/iomgr/sockaddr_win32.h )
-  s.files += %w( src/core/iomgr/socket_utils_posix.h )
-  s.files += %w( src/core/iomgr/socket_windows.h )
-  s.files += %w( src/core/iomgr/tcp_client.h )
-  s.files += %w( src/core/iomgr/tcp_posix.h )
-  s.files += %w( src/core/iomgr/tcp_server.h )
-  s.files += %w( src/core/iomgr/tcp_windows.h )
-  s.files += %w( src/core/iomgr/time_averaged_stats.h )
-  s.files += %w( src/core/iomgr/timer.h )
-  s.files += %w( src/core/iomgr/timer_heap.h )
-  s.files += %w( src/core/iomgr/udp_server.h )
-  s.files += %w( src/core/iomgr/wakeup_fd_pipe.h )
-  s.files += %w( src/core/iomgr/wakeup_fd_posix.h )
-  s.files += %w( src/core/iomgr/workqueue.h )
-  s.files += %w( src/core/iomgr/workqueue_posix.h )
-  s.files += %w( src/core/iomgr/workqueue_windows.h )
-  s.files += %w( src/core/json/json.h )
-  s.files += %w( src/core/json/json_common.h )
-  s.files += %w( src/core/json/json_reader.h )
-  s.files += %w( src/core/json/json_writer.h )
-  s.files += %w( src/core/proto/grpc/lb/v0/load_balancer.pb.h )
-  s.files += %w( src/core/statistics/census_interface.h )
-  s.files += %w( src/core/statistics/census_rpc_stats.h )
-  s.files += %w( src/core/surface/api_trace.h )
-  s.files += %w( src/core/surface/call.h )
-  s.files += %w( src/core/surface/call_test_only.h )
-  s.files += %w( src/core/surface/channel.h )
-  s.files += %w( src/core/surface/channel_init.h )
-  s.files += %w( src/core/surface/channel_stack_type.h )
-  s.files += %w( src/core/surface/completion_queue.h )
-  s.files += %w( src/core/surface/event_string.h )
-  s.files += %w( src/core/surface/init.h )
-  s.files += %w( src/core/surface/lame_client.h )
-  s.files += %w( src/core/surface/server.h )
-  s.files += %w( src/core/surface/surface_trace.h )
-  s.files += %w( src/core/transport/byte_stream.h )
-  s.files += %w( src/core/transport/chttp2/alpn.h )
-  s.files += %w( src/core/transport/chttp2/bin_encoder.h )
-  s.files += %w( src/core/transport/chttp2/frame.h )
-  s.files += %w( src/core/transport/chttp2/frame_data.h )
-  s.files += %w( src/core/transport/chttp2/frame_goaway.h )
-  s.files += %w( src/core/transport/chttp2/frame_ping.h )
-  s.files += %w( src/core/transport/chttp2/frame_rst_stream.h )
-  s.files += %w( src/core/transport/chttp2/frame_settings.h )
-  s.files += %w( src/core/transport/chttp2/frame_window_update.h )
-  s.files += %w( src/core/transport/chttp2/hpack_encoder.h )
-  s.files += %w( src/core/transport/chttp2/hpack_parser.h )
-  s.files += %w( src/core/transport/chttp2/hpack_table.h )
-  s.files += %w( src/core/transport/chttp2/http2_errors.h )
-  s.files += %w( src/core/transport/chttp2/huffsyms.h )
-  s.files += %w( src/core/transport/chttp2/incoming_metadata.h )
-  s.files += %w( src/core/transport/chttp2/internal.h )
-  s.files += %w( src/core/transport/chttp2/status_conversion.h )
-  s.files += %w( src/core/transport/chttp2/stream_map.h )
-  s.files += %w( src/core/transport/chttp2/timeout_encoding.h )
-  s.files += %w( src/core/transport/chttp2/varint.h )
-  s.files += %w( src/core/transport/chttp2_transport.h )
-  s.files += %w( src/core/transport/connectivity_state.h )
-  s.files += %w( src/core/transport/metadata.h )
-  s.files += %w( src/core/transport/metadata_batch.h )
-  s.files += %w( src/core/transport/static_metadata.h )
-  s.files += %w( src/core/transport/transport.h )
-  s.files += %w( src/core/transport/transport_impl.h )
-  s.files += %w( src/core/security/auth_filters.h )
-  s.files += %w( src/core/security/b64.h )
-  s.files += %w( src/core/security/credentials.h )
-  s.files += %w( src/core/security/handshake.h )
-  s.files += %w( src/core/security/json_token.h )
-  s.files += %w( src/core/security/jwt_verifier.h )
-  s.files += %w( src/core/security/secure_endpoint.h )
-  s.files += %w( src/core/security/security_connector.h )
-  s.files += %w( src/core/security/security_context.h )
-  s.files += %w( src/core/tsi/fake_transport_security.h )
-  s.files += %w( src/core/tsi/ssl_transport_security.h )
-  s.files += %w( src/core/tsi/ssl_types.h )
-  s.files += %w( src/core/tsi/transport_security.h )
-  s.files += %w( src/core/tsi/transport_security_interface.h )
-  s.files += %w( src/core/census/aggregation.h )
-  s.files += %w( src/core/census/mlog.h )
-  s.files += %w( src/core/census/rpc_metric_id.h )
+  s.files += %w( src/core/lib/census/grpc_filter.h )
+  s.files += %w( src/core/lib/census/grpc_plugin.h )
+  s.files += %w( src/core/lib/channel/channel_args.h )
+  s.files += %w( src/core/lib/channel/channel_stack.h )
+  s.files += %w( src/core/lib/channel/channel_stack_builder.h )
+  s.files += %w( src/core/lib/channel/client_channel.h )
+  s.files += %w( src/core/lib/channel/compress_filter.h )
+  s.files += %w( src/core/lib/channel/connected_channel.h )
+  s.files += %w( src/core/lib/channel/context.h )
+  s.files += %w( src/core/lib/channel/http_client_filter.h )
+  s.files += %w( src/core/lib/channel/http_server_filter.h )
+  s.files += %w( src/core/lib/channel/subchannel_call_holder.h )
+  s.files += %w( src/core/lib/client_config/client_config.h )
+  s.files += %w( src/core/lib/client_config/connector.h )
+  s.files += %w( src/core/lib/client_config/initial_connect_string.h )
+  s.files += %w( src/core/lib/client_config/lb_policies/load_balancer_api.h )
+  s.files += %w( src/core/lib/client_config/lb_policies/pick_first.h )
+  s.files += %w( src/core/lib/client_config/lb_policies/round_robin.h )
+  s.files += %w( src/core/lib/client_config/lb_policy.h )
+  s.files += %w( src/core/lib/client_config/lb_policy_factory.h )
+  s.files += %w( src/core/lib/client_config/lb_policy_registry.h )
+  s.files += %w( src/core/lib/client_config/resolver.h )
+  s.files += %w( src/core/lib/client_config/resolver_factory.h )
+  s.files += %w( src/core/lib/client_config/resolver_registry.h )
+  s.files += %w( src/core/lib/client_config/resolvers/dns_resolver.h )
+  s.files += %w( src/core/lib/client_config/resolvers/sockaddr_resolver.h )
+  s.files += %w( src/core/lib/client_config/subchannel.h )
+  s.files += %w( src/core/lib/client_config/subchannel_factory.h )
+  s.files += %w( src/core/lib/client_config/subchannel_index.h )
+  s.files += %w( src/core/lib/client_config/uri_parser.h )
+  s.files += %w( src/core/lib/compression/algorithm_metadata.h )
+  s.files += %w( src/core/lib/compression/message_compress.h )
+  s.files += %w( src/core/lib/debug/trace.h )
+  s.files += %w( src/core/lib/http/format_request.h )
+  s.files += %w( src/core/lib/http/httpcli.h )
+  s.files += %w( src/core/lib/http/parser.h )
+  s.files += %w( src/core/lib/iomgr/closure.h )
+  s.files += %w( src/core/lib/iomgr/endpoint.h )
+  s.files += %w( src/core/lib/iomgr/endpoint_pair.h )
+  s.files += %w( src/core/lib/iomgr/ev_poll_and_epoll_posix.h )
+  s.files += %w( src/core/lib/iomgr/ev_posix.h )
+  s.files += %w( src/core/lib/iomgr/exec_ctx.h )
+  s.files += %w( src/core/lib/iomgr/executor.h )
+  s.files += %w( src/core/lib/iomgr/iocp_windows.h )
+  s.files += %w( src/core/lib/iomgr/iomgr.h )
+  s.files += %w( src/core/lib/iomgr/iomgr_internal.h )
+  s.files += %w( src/core/lib/iomgr/iomgr_posix.h )
+  s.files += %w( src/core/lib/iomgr/pollset.h )
+  s.files += %w( src/core/lib/iomgr/pollset_posix.h )
+  s.files += %w( src/core/lib/iomgr/pollset_set.h )
+  s.files += %w( src/core/lib/iomgr/pollset_set_posix.h )
+  s.files += %w( src/core/lib/iomgr/pollset_set_windows.h )
+  s.files += %w( src/core/lib/iomgr/pollset_windows.h )
+  s.files += %w( src/core/lib/iomgr/resolve_address.h )
+  s.files += %w( src/core/lib/iomgr/sockaddr.h )
+  s.files += %w( src/core/lib/iomgr/sockaddr_posix.h )
+  s.files += %w( src/core/lib/iomgr/sockaddr_utils.h )
+  s.files += %w( src/core/lib/iomgr/sockaddr_win32.h )
+  s.files += %w( src/core/lib/iomgr/socket_utils_posix.h )
+  s.files += %w( src/core/lib/iomgr/socket_windows.h )
+  s.files += %w( src/core/lib/iomgr/tcp_client.h )
+  s.files += %w( src/core/lib/iomgr/tcp_posix.h )
+  s.files += %w( src/core/lib/iomgr/tcp_server.h )
+  s.files += %w( src/core/lib/iomgr/tcp_windows.h )
+  s.files += %w( src/core/lib/iomgr/time_averaged_stats.h )
+  s.files += %w( src/core/lib/iomgr/timer.h )
+  s.files += %w( src/core/lib/iomgr/timer_heap.h )
+  s.files += %w( src/core/lib/iomgr/udp_server.h )
+  s.files += %w( src/core/lib/iomgr/unix_sockets_posix.h )
+  s.files += %w( src/core/lib/iomgr/wakeup_fd_pipe.h )
+  s.files += %w( src/core/lib/iomgr/wakeup_fd_posix.h )
+  s.files += %w( src/core/lib/iomgr/workqueue.h )
+  s.files += %w( src/core/lib/iomgr/workqueue_posix.h )
+  s.files += %w( src/core/lib/iomgr/workqueue_windows.h )
+  s.files += %w( src/core/lib/json/json.h )
+  s.files += %w( src/core/lib/json/json_common.h )
+  s.files += %w( src/core/lib/json/json_reader.h )
+  s.files += %w( src/core/lib/json/json_writer.h )
+  s.files += %w( src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h )
+  s.files += %w( src/core/lib/statistics/census_interface.h )
+  s.files += %w( src/core/lib/statistics/census_rpc_stats.h )
+  s.files += %w( src/core/lib/surface/api_trace.h )
+  s.files += %w( src/core/lib/surface/call.h )
+  s.files += %w( src/core/lib/surface/call_test_only.h )
+  s.files += %w( src/core/lib/surface/channel.h )
+  s.files += %w( src/core/lib/surface/channel_init.h )
+  s.files += %w( src/core/lib/surface/channel_stack_type.h )
+  s.files += %w( src/core/lib/surface/completion_queue.h )
+  s.files += %w( src/core/lib/surface/event_string.h )
+  s.files += %w( src/core/lib/surface/init.h )
+  s.files += %w( src/core/lib/surface/lame_client.h )
+  s.files += %w( src/core/lib/surface/server.h )
+  s.files += %w( src/core/lib/surface/surface_trace.h )
+  s.files += %w( src/core/lib/transport/byte_stream.h )
+  s.files += %w( src/core/lib/transport/chttp2/alpn.h )
+  s.files += %w( src/core/lib/transport/chttp2/bin_encoder.h )
+  s.files += %w( src/core/lib/transport/chttp2/frame.h )
+  s.files += %w( src/core/lib/transport/chttp2/frame_data.h )
+  s.files += %w( src/core/lib/transport/chttp2/frame_goaway.h )
+  s.files += %w( src/core/lib/transport/chttp2/frame_ping.h )
+  s.files += %w( src/core/lib/transport/chttp2/frame_rst_stream.h )
+  s.files += %w( src/core/lib/transport/chttp2/frame_settings.h )
+  s.files += %w( src/core/lib/transport/chttp2/frame_window_update.h )
+  s.files += %w( src/core/lib/transport/chttp2/hpack_encoder.h )
+  s.files += %w( src/core/lib/transport/chttp2/hpack_parser.h )
+  s.files += %w( src/core/lib/transport/chttp2/hpack_table.h )
+  s.files += %w( src/core/lib/transport/chttp2/http2_errors.h )
+  s.files += %w( src/core/lib/transport/chttp2/huffsyms.h )
+  s.files += %w( src/core/lib/transport/chttp2/incoming_metadata.h )
+  s.files += %w( src/core/lib/transport/chttp2/internal.h )
+  s.files += %w( src/core/lib/transport/chttp2/status_conversion.h )
+  s.files += %w( src/core/lib/transport/chttp2/stream_map.h )
+  s.files += %w( src/core/lib/transport/chttp2/timeout_encoding.h )
+  s.files += %w( src/core/lib/transport/chttp2/varint.h )
+  s.files += %w( src/core/lib/transport/chttp2_transport.h )
+  s.files += %w( src/core/lib/transport/connectivity_state.h )
+  s.files += %w( src/core/lib/transport/metadata.h )
+  s.files += %w( src/core/lib/transport/metadata_batch.h )
+  s.files += %w( src/core/lib/transport/static_metadata.h )
+  s.files += %w( src/core/lib/transport/transport.h )
+  s.files += %w( src/core/lib/transport/transport_impl.h )
+  s.files += %w( src/core/lib/security/auth_filters.h )
+  s.files += %w( src/core/lib/security/b64.h )
+  s.files += %w( src/core/lib/security/credentials.h )
+  s.files += %w( src/core/lib/security/handshake.h )
+  s.files += %w( src/core/lib/security/json_token.h )
+  s.files += %w( src/core/lib/security/jwt_verifier.h )
+  s.files += %w( src/core/lib/security/secure_endpoint.h )
+  s.files += %w( src/core/lib/security/security_connector.h )
+  s.files += %w( src/core/lib/security/security_context.h )
+  s.files += %w( src/core/lib/tsi/fake_transport_security.h )
+  s.files += %w( src/core/lib/tsi/ssl_transport_security.h )
+  s.files += %w( src/core/lib/tsi/ssl_types.h )
+  s.files += %w( src/core/lib/tsi/transport_security.h )
+  s.files += %w( src/core/lib/tsi/transport_security_interface.h )
+  s.files += %w( src/core/lib/census/aggregation.h )
+  s.files += %w( src/core/lib/census/mlog.h )
+  s.files += %w( src/core/lib/census/rpc_metric_id.h )
   s.files += %w( third_party/nanopb/pb.h )
   s.files += %w( third_party/nanopb/pb_common.h )
   s.files += %w( third_party/nanopb/pb_decode.h )
   s.files += %w( third_party/nanopb/pb_encode.h )
-  s.files += %w( src/core/census/grpc_context.c )
-  s.files += %w( src/core/census/grpc_filter.c )
-  s.files += %w( src/core/census/grpc_plugin.c )
-  s.files += %w( src/core/channel/channel_args.c )
-  s.files += %w( src/core/channel/channel_stack.c )
-  s.files += %w( src/core/channel/channel_stack_builder.c )
-  s.files += %w( src/core/channel/client_channel.c )
-  s.files += %w( src/core/channel/client_uchannel.c )
-  s.files += %w( src/core/channel/compress_filter.c )
-  s.files += %w( src/core/channel/connected_channel.c )
-  s.files += %w( src/core/channel/http_client_filter.c )
-  s.files += %w( src/core/channel/http_server_filter.c )
-  s.files += %w( src/core/channel/subchannel_call_holder.c )
-  s.files += %w( src/core/client_config/client_config.c )
-  s.files += %w( src/core/client_config/connector.c )
-  s.files += %w( src/core/client_config/default_initial_connect_string.c )
-  s.files += %w( src/core/client_config/initial_connect_string.c )
-  s.files += %w( src/core/client_config/lb_policies/load_balancer_api.c )
-  s.files += %w( src/core/client_config/lb_policies/pick_first.c )
-  s.files += %w( src/core/client_config/lb_policies/round_robin.c )
-  s.files += %w( src/core/client_config/lb_policy.c )
-  s.files += %w( src/core/client_config/lb_policy_factory.c )
-  s.files += %w( src/core/client_config/lb_policy_registry.c )
-  s.files += %w( src/core/client_config/resolver.c )
-  s.files += %w( src/core/client_config/resolver_factory.c )
-  s.files += %w( src/core/client_config/resolver_registry.c )
-  s.files += %w( src/core/client_config/resolvers/dns_resolver.c )
-  s.files += %w( src/core/client_config/resolvers/sockaddr_resolver.c )
-  s.files += %w( src/core/client_config/subchannel.c )
-  s.files += %w( src/core/client_config/subchannel_factory.c )
-  s.files += %w( src/core/client_config/subchannel_index.c )
-  s.files += %w( src/core/client_config/uri_parser.c )
-  s.files += %w( src/core/compression/compression_algorithm.c )
-  s.files += %w( src/core/compression/message_compress.c )
-  s.files += %w( src/core/debug/trace.c )
-  s.files += %w( src/core/httpcli/format_request.c )
-  s.files += %w( src/core/httpcli/httpcli.c )
-  s.files += %w( src/core/httpcli/parser.c )
-  s.files += %w( src/core/iomgr/closure.c )
-  s.files += %w( src/core/iomgr/endpoint.c )
-  s.files += %w( src/core/iomgr/endpoint_pair_posix.c )
-  s.files += %w( src/core/iomgr/endpoint_pair_windows.c )
-  s.files += %w( src/core/iomgr/ev_poll_and_epoll_posix.c )
-  s.files += %w( src/core/iomgr/ev_posix.c )
-  s.files += %w( src/core/iomgr/exec_ctx.c )
-  s.files += %w( src/core/iomgr/executor.c )
-  s.files += %w( src/core/iomgr/iocp_windows.c )
-  s.files += %w( src/core/iomgr/iomgr.c )
-  s.files += %w( src/core/iomgr/iomgr_posix.c )
-  s.files += %w( src/core/iomgr/iomgr_windows.c )
-  s.files += %w( src/core/iomgr/pollset_set_windows.c )
-  s.files += %w( src/core/iomgr/pollset_windows.c )
-  s.files += %w( src/core/iomgr/resolve_address_posix.c )
-  s.files += %w( src/core/iomgr/resolve_address_windows.c )
-  s.files += %w( src/core/iomgr/sockaddr_utils.c )
-  s.files += %w( src/core/iomgr/socket_utils_common_posix.c )
-  s.files += %w( src/core/iomgr/socket_utils_linux.c )
-  s.files += %w( src/core/iomgr/socket_utils_posix.c )
-  s.files += %w( src/core/iomgr/socket_windows.c )
-  s.files += %w( src/core/iomgr/tcp_client_posix.c )
-  s.files += %w( src/core/iomgr/tcp_client_windows.c )
-  s.files += %w( src/core/iomgr/tcp_posix.c )
-  s.files += %w( src/core/iomgr/tcp_server_posix.c )
-  s.files += %w( src/core/iomgr/tcp_server_windows.c )
-  s.files += %w( src/core/iomgr/tcp_windows.c )
-  s.files += %w( src/core/iomgr/time_averaged_stats.c )
-  s.files += %w( src/core/iomgr/timer.c )
-  s.files += %w( src/core/iomgr/timer_heap.c )
-  s.files += %w( src/core/iomgr/udp_server.c )
-  s.files += %w( src/core/iomgr/wakeup_fd_eventfd.c )
-  s.files += %w( src/core/iomgr/wakeup_fd_nospecial.c )
-  s.files += %w( src/core/iomgr/wakeup_fd_pipe.c )
-  s.files += %w( src/core/iomgr/wakeup_fd_posix.c )
-  s.files += %w( src/core/iomgr/workqueue_posix.c )
-  s.files += %w( src/core/iomgr/workqueue_windows.c )
-  s.files += %w( src/core/json/json.c )
-  s.files += %w( src/core/json/json_reader.c )
-  s.files += %w( src/core/json/json_string.c )
-  s.files += %w( src/core/json/json_writer.c )
-  s.files += %w( src/core/proto/grpc/lb/v0/load_balancer.pb.c )
-  s.files += %w( src/core/surface/alarm.c )
-  s.files += %w( src/core/surface/api_trace.c )
-  s.files += %w( src/core/surface/byte_buffer.c )
-  s.files += %w( src/core/surface/byte_buffer_reader.c )
-  s.files += %w( src/core/surface/call.c )
-  s.files += %w( src/core/surface/call_details.c )
-  s.files += %w( src/core/surface/call_log_batch.c )
-  s.files += %w( src/core/surface/channel.c )
-  s.files += %w( src/core/surface/channel_connectivity.c )
-  s.files += %w( src/core/surface/channel_create.c )
-  s.files += %w( src/core/surface/channel_init.c )
-  s.files += %w( src/core/surface/channel_ping.c )
-  s.files += %w( src/core/surface/channel_stack_type.c )
-  s.files += %w( src/core/surface/completion_queue.c )
-  s.files += %w( src/core/surface/event_string.c )
-  s.files += %w( src/core/surface/init.c )
-  s.files += %w( src/core/surface/lame_client.c )
-  s.files += %w( src/core/surface/metadata_array.c )
-  s.files += %w( src/core/surface/server.c )
-  s.files += %w( src/core/surface/server_chttp2.c )
-  s.files += %w( src/core/surface/validate_metadata.c )
-  s.files += %w( src/core/surface/version.c )
-  s.files += %w( src/core/transport/byte_stream.c )
-  s.files += %w( src/core/transport/chttp2/alpn.c )
-  s.files += %w( src/core/transport/chttp2/bin_encoder.c )
-  s.files += %w( src/core/transport/chttp2/frame_data.c )
-  s.files += %w( src/core/transport/chttp2/frame_goaway.c )
-  s.files += %w( src/core/transport/chttp2/frame_ping.c )
-  s.files += %w( src/core/transport/chttp2/frame_rst_stream.c )
-  s.files += %w( src/core/transport/chttp2/frame_settings.c )
-  s.files += %w( src/core/transport/chttp2/frame_window_update.c )
-  s.files += %w( src/core/transport/chttp2/hpack_encoder.c )
-  s.files += %w( src/core/transport/chttp2/hpack_parser.c )
-  s.files += %w( src/core/transport/chttp2/hpack_table.c )
-  s.files += %w( src/core/transport/chttp2/huffsyms.c )
-  s.files += %w( src/core/transport/chttp2/incoming_metadata.c )
-  s.files += %w( src/core/transport/chttp2/parsing.c )
-  s.files += %w( src/core/transport/chttp2/status_conversion.c )
-  s.files += %w( src/core/transport/chttp2/stream_lists.c )
-  s.files += %w( src/core/transport/chttp2/stream_map.c )
-  s.files += %w( src/core/transport/chttp2/timeout_encoding.c )
-  s.files += %w( src/core/transport/chttp2/varint.c )
-  s.files += %w( src/core/transport/chttp2/writing.c )
-  s.files += %w( src/core/transport/chttp2_transport.c )
-  s.files += %w( src/core/transport/connectivity_state.c )
-  s.files += %w( src/core/transport/metadata.c )
-  s.files += %w( src/core/transport/metadata_batch.c )
-  s.files += %w( src/core/transport/static_metadata.c )
-  s.files += %w( src/core/transport/transport.c )
-  s.files += %w( src/core/transport/transport_op_string.c )
-  s.files += %w( src/core/httpcli/httpcli_security_connector.c )
-  s.files += %w( src/core/security/b64.c )
-  s.files += %w( src/core/security/client_auth_filter.c )
-  s.files += %w( src/core/security/credentials.c )
-  s.files += %w( src/core/security/credentials_metadata.c )
-  s.files += %w( src/core/security/credentials_posix.c )
-  s.files += %w( src/core/security/credentials_win32.c )
-  s.files += %w( src/core/security/google_default_credentials.c )
-  s.files += %w( src/core/security/handshake.c )
-  s.files += %w( src/core/security/json_token.c )
-  s.files += %w( src/core/security/jwt_verifier.c )
-  s.files += %w( src/core/security/secure_endpoint.c )
-  s.files += %w( src/core/security/security_connector.c )
-  s.files += %w( src/core/security/security_context.c )
-  s.files += %w( src/core/security/server_auth_filter.c )
-  s.files += %w( src/core/security/server_secure_chttp2.c )
-  s.files += %w( src/core/surface/init_secure.c )
-  s.files += %w( src/core/surface/secure_channel_create.c )
-  s.files += %w( src/core/tsi/fake_transport_security.c )
-  s.files += %w( src/core/tsi/ssl_transport_security.c )
-  s.files += %w( src/core/tsi/transport_security.c )
-  s.files += %w( src/core/census/context.c )
-  s.files += %w( src/core/census/initialize.c )
-  s.files += %w( src/core/census/mlog.c )
-  s.files += %w( src/core/census/operation.c )
-  s.files += %w( src/core/census/placeholders.c )
-  s.files += %w( src/core/census/tracing.c )
+  s.files += %w( src/core/lib/census/grpc_context.c )
+  s.files += %w( src/core/lib/census/grpc_filter.c )
+  s.files += %w( src/core/lib/census/grpc_plugin.c )
+  s.files += %w( src/core/lib/channel/channel_args.c )
+  s.files += %w( src/core/lib/channel/channel_stack.c )
+  s.files += %w( src/core/lib/channel/channel_stack_builder.c )
+  s.files += %w( src/core/lib/channel/client_channel.c )
+  s.files += %w( src/core/lib/channel/compress_filter.c )
+  s.files += %w( src/core/lib/channel/connected_channel.c )
+  s.files += %w( src/core/lib/channel/http_client_filter.c )
+  s.files += %w( src/core/lib/channel/http_server_filter.c )
+  s.files += %w( src/core/lib/channel/subchannel_call_holder.c )
+  s.files += %w( src/core/lib/client_config/client_config.c )
+  s.files += %w( src/core/lib/client_config/connector.c )
+  s.files += %w( src/core/lib/client_config/default_initial_connect_string.c )
+  s.files += %w( src/core/lib/client_config/initial_connect_string.c )
+  s.files += %w( src/core/lib/client_config/lb_policies/load_balancer_api.c )
+  s.files += %w( src/core/lib/client_config/lb_policies/pick_first.c )
+  s.files += %w( src/core/lib/client_config/lb_policies/round_robin.c )
+  s.files += %w( src/core/lib/client_config/lb_policy.c )
+  s.files += %w( src/core/lib/client_config/lb_policy_factory.c )
+  s.files += %w( src/core/lib/client_config/lb_policy_registry.c )
+  s.files += %w( src/core/lib/client_config/resolver.c )
+  s.files += %w( src/core/lib/client_config/resolver_factory.c )
+  s.files += %w( src/core/lib/client_config/resolver_registry.c )
+  s.files += %w( src/core/lib/client_config/resolvers/dns_resolver.c )
+  s.files += %w( src/core/lib/client_config/resolvers/sockaddr_resolver.c )
+  s.files += %w( src/core/lib/client_config/subchannel.c )
+  s.files += %w( src/core/lib/client_config/subchannel_factory.c )
+  s.files += %w( src/core/lib/client_config/subchannel_index.c )
+  s.files += %w( src/core/lib/client_config/uri_parser.c )
+  s.files += %w( src/core/lib/compression/compression_algorithm.c )
+  s.files += %w( src/core/lib/compression/message_compress.c )
+  s.files += %w( src/core/lib/debug/trace.c )
+  s.files += %w( src/core/lib/http/format_request.c )
+  s.files += %w( src/core/lib/http/httpcli.c )
+  s.files += %w( src/core/lib/http/parser.c )
+  s.files += %w( src/core/lib/iomgr/closure.c )
+  s.files += %w( src/core/lib/iomgr/endpoint.c )
+  s.files += %w( src/core/lib/iomgr/endpoint_pair_posix.c )
+  s.files += %w( src/core/lib/iomgr/endpoint_pair_windows.c )
+  s.files += %w( src/core/lib/iomgr/ev_poll_and_epoll_posix.c )
+  s.files += %w( src/core/lib/iomgr/ev_posix.c )
+  s.files += %w( src/core/lib/iomgr/exec_ctx.c )
+  s.files += %w( src/core/lib/iomgr/executor.c )
+  s.files += %w( src/core/lib/iomgr/iocp_windows.c )
+  s.files += %w( src/core/lib/iomgr/iomgr.c )
+  s.files += %w( src/core/lib/iomgr/iomgr_posix.c )
+  s.files += %w( src/core/lib/iomgr/iomgr_windows.c )
+  s.files += %w( src/core/lib/iomgr/pollset_set_windows.c )
+  s.files += %w( src/core/lib/iomgr/pollset_windows.c )
+  s.files += %w( src/core/lib/iomgr/resolve_address_posix.c )
+  s.files += %w( src/core/lib/iomgr/resolve_address_windows.c )
+  s.files += %w( src/core/lib/iomgr/sockaddr_utils.c )
+  s.files += %w( src/core/lib/iomgr/socket_utils_common_posix.c )
+  s.files += %w( src/core/lib/iomgr/socket_utils_linux.c )
+  s.files += %w( src/core/lib/iomgr/socket_utils_posix.c )
+  s.files += %w( src/core/lib/iomgr/socket_windows.c )
+  s.files += %w( src/core/lib/iomgr/tcp_client_posix.c )
+  s.files += %w( src/core/lib/iomgr/tcp_client_windows.c )
+  s.files += %w( src/core/lib/iomgr/tcp_posix.c )
+  s.files += %w( src/core/lib/iomgr/tcp_server_posix.c )
+  s.files += %w( src/core/lib/iomgr/tcp_server_windows.c )
+  s.files += %w( src/core/lib/iomgr/tcp_windows.c )
+  s.files += %w( src/core/lib/iomgr/time_averaged_stats.c )
+  s.files += %w( src/core/lib/iomgr/timer.c )
+  s.files += %w( src/core/lib/iomgr/timer_heap.c )
+  s.files += %w( src/core/lib/iomgr/udp_server.c )
+  s.files += %w( src/core/lib/iomgr/unix_sockets_posix.c )
+  s.files += %w( src/core/lib/iomgr/unix_sockets_posix_noop.c )
+  s.files += %w( src/core/lib/iomgr/wakeup_fd_eventfd.c )
+  s.files += %w( src/core/lib/iomgr/wakeup_fd_nospecial.c )
+  s.files += %w( src/core/lib/iomgr/wakeup_fd_pipe.c )
+  s.files += %w( src/core/lib/iomgr/wakeup_fd_posix.c )
+  s.files += %w( src/core/lib/iomgr/workqueue_posix.c )
+  s.files += %w( src/core/lib/iomgr/workqueue_windows.c )
+  s.files += %w( src/core/lib/json/json.c )
+  s.files += %w( src/core/lib/json/json_reader.c )
+  s.files += %w( src/core/lib/json/json_string.c )
+  s.files += %w( src/core/lib/json/json_writer.c )
+  s.files += %w( src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c )
+  s.files += %w( src/core/lib/surface/alarm.c )
+  s.files += %w( src/core/lib/surface/api_trace.c )
+  s.files += %w( src/core/lib/surface/byte_buffer.c )
+  s.files += %w( src/core/lib/surface/byte_buffer_reader.c )
+  s.files += %w( src/core/lib/surface/call.c )
+  s.files += %w( src/core/lib/surface/call_details.c )
+  s.files += %w( src/core/lib/surface/call_log_batch.c )
+  s.files += %w( src/core/lib/surface/channel.c )
+  s.files += %w( src/core/lib/surface/channel_connectivity.c )
+  s.files += %w( src/core/lib/surface/channel_create.c )
+  s.files += %w( src/core/lib/surface/channel_init.c )
+  s.files += %w( src/core/lib/surface/channel_ping.c )
+  s.files += %w( src/core/lib/surface/channel_stack_type.c )
+  s.files += %w( src/core/lib/surface/completion_queue.c )
+  s.files += %w( src/core/lib/surface/event_string.c )
+  s.files += %w( src/core/lib/surface/init.c )
+  s.files += %w( src/core/lib/surface/lame_client.c )
+  s.files += %w( src/core/lib/surface/metadata_array.c )
+  s.files += %w( src/core/lib/surface/server.c )
+  s.files += %w( src/core/lib/surface/server_chttp2.c )
+  s.files += %w( src/core/lib/surface/validate_metadata.c )
+  s.files += %w( src/core/lib/surface/version.c )
+  s.files += %w( src/core/lib/transport/byte_stream.c )
+  s.files += %w( src/core/lib/transport/chttp2/alpn.c )
+  s.files += %w( src/core/lib/transport/chttp2/bin_encoder.c )
+  s.files += %w( src/core/lib/transport/chttp2/frame_data.c )
+  s.files += %w( src/core/lib/transport/chttp2/frame_goaway.c )
+  s.files += %w( src/core/lib/transport/chttp2/frame_ping.c )
+  s.files += %w( src/core/lib/transport/chttp2/frame_rst_stream.c )
+  s.files += %w( src/core/lib/transport/chttp2/frame_settings.c )
+  s.files += %w( src/core/lib/transport/chttp2/frame_window_update.c )
+  s.files += %w( src/core/lib/transport/chttp2/hpack_encoder.c )
+  s.files += %w( src/core/lib/transport/chttp2/hpack_parser.c )
+  s.files += %w( src/core/lib/transport/chttp2/hpack_table.c )
+  s.files += %w( src/core/lib/transport/chttp2/huffsyms.c )
+  s.files += %w( src/core/lib/transport/chttp2/incoming_metadata.c )
+  s.files += %w( src/core/lib/transport/chttp2/parsing.c )
+  s.files += %w( src/core/lib/transport/chttp2/status_conversion.c )
+  s.files += %w( src/core/lib/transport/chttp2/stream_lists.c )
+  s.files += %w( src/core/lib/transport/chttp2/stream_map.c )
+  s.files += %w( src/core/lib/transport/chttp2/timeout_encoding.c )
+  s.files += %w( src/core/lib/transport/chttp2/varint.c )
+  s.files += %w( src/core/lib/transport/chttp2/writing.c )
+  s.files += %w( src/core/lib/transport/chttp2_transport.c )
+  s.files += %w( src/core/lib/transport/connectivity_state.c )
+  s.files += %w( src/core/lib/transport/metadata.c )
+  s.files += %w( src/core/lib/transport/metadata_batch.c )
+  s.files += %w( src/core/lib/transport/static_metadata.c )
+  s.files += %w( src/core/lib/transport/transport.c )
+  s.files += %w( src/core/lib/transport/transport_op_string.c )
+  s.files += %w( src/core/lib/http/httpcli_security_connector.c )
+  s.files += %w( src/core/lib/security/b64.c )
+  s.files += %w( src/core/lib/security/client_auth_filter.c )
+  s.files += %w( src/core/lib/security/credentials.c )
+  s.files += %w( src/core/lib/security/credentials_metadata.c )
+  s.files += %w( src/core/lib/security/credentials_posix.c )
+  s.files += %w( src/core/lib/security/credentials_win32.c )
+  s.files += %w( src/core/lib/security/google_default_credentials.c )
+  s.files += %w( src/core/lib/security/handshake.c )
+  s.files += %w( src/core/lib/security/json_token.c )
+  s.files += %w( src/core/lib/security/jwt_verifier.c )
+  s.files += %w( src/core/lib/security/secure_endpoint.c )
+  s.files += %w( src/core/lib/security/security_connector.c )
+  s.files += %w( src/core/lib/security/security_context.c )
+  s.files += %w( src/core/lib/security/server_auth_filter.c )
+  s.files += %w( src/core/lib/security/server_secure_chttp2.c )
+  s.files += %w( src/core/lib/surface/init_secure.c )
+  s.files += %w( src/core/lib/surface/secure_channel_create.c )
+  s.files += %w( src/core/lib/tsi/fake_transport_security.c )
+  s.files += %w( src/core/lib/tsi/ssl_transport_security.c )
+  s.files += %w( src/core/lib/tsi/transport_security.c )
+  s.files += %w( src/core/lib/census/context.c )
+  s.files += %w( src/core/lib/census/initialize.c )
+  s.files += %w( src/core/lib/census/mlog.c )
+  s.files += %w( src/core/lib/census/operation.c )
+  s.files += %w( src/core/lib/census/placeholders.c )
+  s.files += %w( src/core/lib/census/tracing.c )
   s.files += %w( third_party/nanopb/pb_common.c )
   s.files += %w( third_party/nanopb/pb_decode.c )
   s.files += %w( third_party/nanopb/pb_encode.c )
diff --git a/include/grpc++/generic/async_generic_service.h b/include/grpc++/generic/async_generic_service.h
index 9ae8391..b87b17e 100644
--- a/include/grpc++/generic/async_generic_service.h
+++ b/include/grpc++/generic/async_generic_service.h
@@ -34,8 +34,8 @@
 #ifndef GRPCXX_GENERIC_ASYNC_GENERIC_SERVICE_H
 #define GRPCXX_GENERIC_ASYNC_GENERIC_SERVICE_H
 
-#include <grpc++/support/byte_buffer.h>
 #include <grpc++/support/async_stream.h>
+#include <grpc++/support/byte_buffer.h>
 
 struct grpc_server;
 
diff --git a/include/grpc++/impl/codegen/async_stream.h b/include/grpc++/impl/codegen/async_stream.h
index 8f9afe8..cac345e 100644
--- a/include/grpc++/impl/codegen/async_stream.h
+++ b/include/grpc++/impl/codegen/async_stream.h
@@ -215,7 +215,8 @@
   CallOpSet<CallOpSendMessage> write_ops_;
   CallOpSet<CallOpClientSendClose> writes_done_ops_;
   CallOpSet<CallOpRecvInitialMetadata, CallOpGenericRecvMessage,
-            CallOpClientRecvStatus> finish_ops_;
+            CallOpClientRecvStatus>
+      finish_ops_;
 };
 
 /// Client-side interface for asynchronous bi-directional streaming.
@@ -350,7 +351,8 @@
   CallOpSet<CallOpSendInitialMetadata> meta_ops_;
   CallOpSet<CallOpRecvMessage<R>> read_ops_;
   CallOpSet<CallOpSendInitialMetadata, CallOpSendMessage,
-            CallOpServerSendStatus> finish_ops_;
+            CallOpServerSendStatus>
+      finish_ops_;
 };
 
 template <class W>
diff --git a/include/grpc++/impl/codegen/async_unary_call.h b/include/grpc++/impl/codegen/async_unary_call.h
index 9c6dbd5..1526deb 100644
--- a/include/grpc++/impl/codegen/async_unary_call.h
+++ b/include/grpc++/impl/codegen/async_unary_call.h
@@ -101,10 +101,12 @@
   class CallOpSetCollection : public CallOpSetCollectionInterface {
    public:
     SneakyCallOpSet<CallOpSendInitialMetadata, CallOpSendMessage,
-                    CallOpClientSendClose> init_buf_;
+                    CallOpClientSendClose>
+        init_buf_;
     CallOpSet<CallOpRecvInitialMetadata> meta_buf_;
     CallOpSet<CallOpRecvInitialMetadata, CallOpRecvMessage<R>,
-              CallOpClientRecvStatus> finish_buf_;
+              CallOpClientRecvStatus>
+        finish_buf_;
   };
   std::shared_ptr<CallOpSetCollection> collection_;
 };
@@ -159,7 +161,8 @@
   ServerContext* ctx_;
   CallOpSet<CallOpSendInitialMetadata> meta_buf_;
   CallOpSet<CallOpSendInitialMetadata, CallOpSendMessage,
-            CallOpServerSendStatus> finish_buf_;
+            CallOpServerSendStatus>
+      finish_buf_;
 };
 
 }  // namespace grpc
diff --git a/include/grpc++/impl/codegen/call.h b/include/grpc++/impl/codegen/call.h
index 03affc2..50f5a75 100644
--- a/include/grpc++/impl/codegen/call.h
+++ b/include/grpc++/impl/codegen/call.h
@@ -280,7 +280,8 @@
       if (*status) {
         got_message = true;
         *status = SerializationTraits<R>::Deserialize(recv_buf_, message_,
-                                                      max_message_size).ok();
+                                                      max_message_size)
+                      .ok();
       } else {
         got_message = false;
         g_core_codegen_interface->grpc_byte_buffer_destroy(recv_buf_);
diff --git a/include/grpc++/impl/codegen/client_unary_call.h b/include/grpc++/impl/codegen/client_unary_call.h
index a2b7d92..6c35a95 100644
--- a/include/grpc++/impl/codegen/client_unary_call.h
+++ b/include/grpc++/impl/codegen/client_unary_call.h
@@ -56,7 +56,8 @@
   Call call(channel->CreateCall(method, context, &cq));
   CallOpSet<CallOpSendInitialMetadata, CallOpSendMessage,
             CallOpRecvInitialMetadata, CallOpRecvMessage<OutputMessage>,
-            CallOpClientSendClose, CallOpClientRecvStatus> ops;
+            CallOpClientSendClose, CallOpClientRecvStatus>
+      ops;
   Status status = ops.SendMessage(request);
   if (!status.ok()) {
     return status;
diff --git a/include/grpc++/impl/codegen/impl/async_stream.h b/include/grpc++/impl/codegen/impl/async_stream.h
index 413eab7..95c8447 100644
--- a/include/grpc++/impl/codegen/impl/async_stream.h
+++ b/include/grpc++/impl/codegen/impl/async_stream.h
@@ -215,7 +215,8 @@
   CallOpSet<CallOpSendMessage> write_ops_;
   CallOpSet<CallOpClientSendClose> writes_done_ops_;
   CallOpSet<CallOpRecvInitialMetadata, CallOpGenericRecvMessage,
-            CallOpClientRecvStatus> finish_ops_;
+            CallOpClientRecvStatus>
+      finish_ops_;
 };
 
 /// Client-side interface for asynchronous bi-directional streaming.
@@ -350,7 +351,8 @@
   CallOpSet<CallOpSendInitialMetadata> meta_ops_;
   CallOpSet<CallOpRecvMessage<R>> read_ops_;
   CallOpSet<CallOpSendInitialMetadata, CallOpSendMessage,
-            CallOpServerSendStatus> finish_ops_;
+            CallOpServerSendStatus>
+      finish_ops_;
 };
 
 template <class W>
diff --git a/include/grpc++/impl/codegen/method_handler_impl.h b/include/grpc++/impl/codegen/method_handler_impl.h
index 3ecca0a..0ab2ae4 100644
--- a/include/grpc++/impl/codegen/method_handler_impl.h
+++ b/include/grpc++/impl/codegen/method_handler_impl.h
@@ -61,7 +61,8 @@
 
     GPR_CODEGEN_ASSERT(!param.server_context->sent_initial_metadata_);
     CallOpSet<CallOpSendInitialMetadata, CallOpSendMessage,
-              CallOpServerSendStatus> ops;
+              CallOpServerSendStatus>
+        ops;
     ops.SendInitialMetadata(param.server_context->initial_metadata_);
     if (status.ok()) {
       status = ops.SendMessage(rsp);
@@ -74,7 +75,8 @@
  private:
   // Application provided rpc handler function.
   std::function<Status(ServiceType*, ServerContext*, const RequestType*,
-                       ResponseType*)> func_;
+                       ResponseType*)>
+      func_;
   // The class the above handler function lives in.
   ServiceType* service_;
 };
@@ -96,7 +98,8 @@
 
     GPR_CODEGEN_ASSERT(!param.server_context->sent_initial_metadata_);
     CallOpSet<CallOpSendInitialMetadata, CallOpSendMessage,
-              CallOpServerSendStatus> ops;
+              CallOpServerSendStatus>
+        ops;
     ops.SendInitialMetadata(param.server_context->initial_metadata_);
     if (status.ok()) {
       status = ops.SendMessage(rsp);
@@ -108,7 +111,8 @@
 
  private:
   std::function<Status(ServiceType*, ServerContext*, ServerReader<RequestType>*,
-                       ResponseType*)> func_;
+                       ResponseType*)>
+      func_;
   ServiceType* service_;
 };
 
@@ -143,7 +147,8 @@
 
  private:
   std::function<Status(ServiceType*, ServerContext*, const RequestType*,
-                       ServerWriter<ResponseType>*)> func_;
+                       ServerWriter<ResponseType>*)>
+      func_;
   ServiceType* service_;
 };
 
@@ -174,7 +179,8 @@
 
  private:
   std::function<Status(ServiceType*, ServerContext*,
-                       ServerReaderWriter<ResponseType, RequestType>*)> func_;
+                       ServerReaderWriter<ResponseType, RequestType>*)>
+      func_;
   ServiceType* service_;
 };
 
diff --git a/include/grpc++/impl/codegen/rpc_service_method.h b/include/grpc++/impl/codegen/rpc_service_method.h
index 6256301..8b1f026 100644
--- a/include/grpc++/impl/codegen/rpc_service_method.h
+++ b/include/grpc++/impl/codegen/rpc_service_method.h
@@ -40,10 +40,10 @@
 #include <memory>
 #include <vector>
 
-#include <grpc/impl/codegen/byte_buffer.h>
 #include <grpc++/impl/codegen/config.h>
 #include <grpc++/impl/codegen/rpc_method.h>
 #include <grpc++/impl/codegen/status.h>
+#include <grpc/impl/codegen/byte_buffer.h>
 
 namespace grpc {
 class ServerContext;
diff --git a/include/grpc++/impl/codegen/server_context.h b/include/grpc++/impl/codegen/server_context.h
index 91ebe57..f8326bc 100644
--- a/include/grpc++/impl/codegen/server_context.h
+++ b/include/grpc++/impl/codegen/server_context.h
@@ -37,12 +37,12 @@
 #include <map>
 #include <memory>
 
-#include <grpc/impl/codegen/compression_types.h>
-#include <grpc/impl/codegen/time.h>
-#include <grpc++/impl/codegen/security/auth_context.h>
 #include <grpc++/impl/codegen/config.h>
+#include <grpc++/impl/codegen/security/auth_context.h>
 #include <grpc++/impl/codegen/string_ref.h>
 #include <grpc++/impl/codegen/time.h>
+#include <grpc/impl/codegen/compression_types.h>
+#include <grpc/impl/codegen/time.h>
 
 struct gpr_timespec;
 struct grpc_metadata;
diff --git a/include/grpc++/impl/codegen/server_interface.h b/include/grpc++/impl/codegen/server_interface.h
index 7d4ed27..908d124 100644
--- a/include/grpc++/impl/codegen/server_interface.h
+++ b/include/grpc++/impl/codegen/server_interface.h
@@ -192,10 +192,11 @@
     bool FinalizeResult(void** tag, bool* status) GRPC_OVERRIDE {
       bool serialization_status =
           *status && payload_ &&
-          SerializationTraits<Message>::Deserialize(
-              payload_, request_, server_->max_message_size()).ok();
+          SerializationTraits<Message>::Deserialize(payload_, request_,
+                                                    server_->max_message_size())
+              .ok();
       bool ret = RegisteredAsyncRequest::FinalizeResult(tag, status);
-      *status = serialization_status&&* status;
+      *status = serialization_status && *status;
       return ret;
     }
 
diff --git a/include/grpc++/impl/codegen/sync_stream.h b/include/grpc++/impl/codegen/sync_stream.h
index 5f87846..0eabc5f 100644
--- a/include/grpc++/impl/codegen/sync_stream.h
+++ b/include/grpc++/impl/codegen/sync_stream.h
@@ -123,7 +123,8 @@
                ClientContext* context, const W& request)
       : context_(context), call_(channel->CreateCall(method, context, &cq_)) {
     CallOpSet<CallOpSendInitialMetadata, CallOpSendMessage,
-              CallOpClientSendClose> ops;
+              CallOpClientSendClose>
+        ops;
     ops.SendInitialMetadata(context->send_initial_metadata_);
     // TODO(ctiller): don't assert
     GPR_CODEGEN_ASSERT(ops.SendMessage(request).ok());
@@ -235,7 +236,8 @@
  private:
   ClientContext* context_;
   CallOpSet<CallOpRecvInitialMetadata, CallOpGenericRecvMessage,
-            CallOpClientRecvStatus> finish_ops_;
+            CallOpClientRecvStatus>
+      finish_ops_;
   CompletionQueue cq_;
   Call call_;
 };
diff --git a/include/grpc++/support/byte_buffer.h b/include/grpc++/support/byte_buffer.h
index 82591a8..3825518 100644
--- a/include/grpc++/support/byte_buffer.h
+++ b/include/grpc++/support/byte_buffer.h
@@ -34,13 +34,13 @@
 #ifndef GRPCXX_SUPPORT_BYTE_BUFFER_H
 #define GRPCXX_SUPPORT_BYTE_BUFFER_H
 
-#include <grpc/grpc.h>
-#include <grpc/byte_buffer.h>
-#include <grpc/support/log.h>
 #include <grpc++/impl/serialization_traits.h>
 #include <grpc++/support/config.h>
 #include <grpc++/support/slice.h>
 #include <grpc++/support/status.h>
+#include <grpc/byte_buffer.h>
+#include <grpc/grpc.h>
+#include <grpc/support/log.h>
 
 #include <vector>
 
@@ -99,8 +99,8 @@
   }
   static Status Serialize(const ByteBuffer& source, grpc_byte_buffer** buffer,
                           bool* own_buffer) {
-    *buffer = source.buffer();
-    *own_buffer = false;
+    *buffer = grpc_byte_buffer_copy(source.buffer());
+    *own_buffer = true;
     return Status::OK;
   }
 };
diff --git a/include/grpc++/support/channel_arguments.h b/include/grpc++/support/channel_arguments.h
index a9ede35..8c2f7c7 100644
--- a/include/grpc++/support/channel_arguments.h
+++ b/include/grpc++/support/channel_arguments.h
@@ -34,12 +34,12 @@
 #ifndef GRPCXX_SUPPORT_CHANNEL_ARGUMENTS_H
 #define GRPCXX_SUPPORT_CHANNEL_ARGUMENTS_H
 
-#include <vector>
 #include <list>
+#include <vector>
 
+#include <grpc++/support/config.h>
 #include <grpc/compression.h>
 #include <grpc/grpc.h>
-#include <grpc++/support/config.h>
 
 namespace grpc {
 namespace testing {
diff --git a/include/grpc++/support/slice.h b/include/grpc++/support/slice.h
index 724691a..6251a8b 100644
--- a/include/grpc++/support/slice.h
+++ b/include/grpc++/support/slice.h
@@ -34,8 +34,8 @@
 #ifndef GRPCXX_SUPPORT_SLICE_H
 #define GRPCXX_SUPPORT_SLICE_H
 
-#include <grpc/support/slice.h>
 #include <grpc++/support/config.h>
+#include <grpc/support/slice.h>
 
 namespace grpc {
 
diff --git a/include/grpc/byte_buffer_reader.h b/include/grpc/byte_buffer_reader.h
index b0e63a6..600bd38 100644
--- a/include/grpc/byte_buffer_reader.h
+++ b/include/grpc/byte_buffer_reader.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -34,8 +34,8 @@
 #ifndef GRPC_BYTE_BUFFER_READER_H
 #define GRPC_BYTE_BUFFER_READER_H
 
-#include <grpc/grpc.h>
 #include <grpc/byte_buffer.h>
+#include <grpc/grpc.h>
 
 #ifdef __cplusplus
 extern "C" {
diff --git a/include/grpc/compression.h b/include/grpc/compression.h
index 70ba393..39023de 100644
--- a/include/grpc/compression.h
+++ b/include/grpc/compression.h
@@ -36,8 +36,8 @@
 
 #include <stdlib.h>
 
-#include <grpc/impl/codegen/port_platform.h>
 #include <grpc/impl/codegen/compression_types.h>
+#include <grpc/impl/codegen/port_platform.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -59,9 +59,8 @@
  * compression algorithms encoded in the \a accepted_encodings bitset.
  *
  * It abort()s for unknown levels . */
-GRPCAPI grpc_compression_algorithm
-grpc_compression_algorithm_for_level(grpc_compression_level level,
-                                     uint32_t accepted_encodings);
+GRPCAPI grpc_compression_algorithm grpc_compression_algorithm_for_level(
+    grpc_compression_level level, uint32_t accepted_encodings);
 
 GRPCAPI void grpc_compression_options_init(grpc_compression_options *opts);
 
diff --git a/include/grpc/grpc.h b/include/grpc/grpc.h
index 5113645..fe0cf28 100644
--- a/include/grpc/grpc.h
+++ b/include/grpc/grpc.h
@@ -36,13 +36,13 @@
 
 #include <grpc/status.h>
 
-#include <stddef.h>
 #include <grpc/byte_buffer.h>
+#include <grpc/impl/codegen/connectivity_state.h>
+#include <grpc/impl/codegen/grpc_types.h>
+#include <grpc/impl/codegen/propagation_bits.h>
 #include <grpc/support/slice.h>
 #include <grpc/support/time.h>
-#include <grpc/impl/codegen/connectivity_state.h>
-#include <grpc/impl/codegen/propagation_bits.h>
-#include <grpc/impl/codegen/grpc_types.h>
+#include <stddef.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -154,9 +154,8 @@
 GRPCAPI void grpc_alarm_destroy(grpc_alarm *alarm);
 
 /** Check the connectivity state of a channel. */
-GRPCAPI grpc_connectivity_state
-grpc_channel_check_connectivity_state(grpc_channel *channel,
-                                      int try_to_connect);
+GRPCAPI grpc_connectivity_state grpc_channel_check_connectivity_state(
+    grpc_channel *channel, int try_to_connect);
 
 /** Watch for a change in connectivity state.
     Once the channel connectivity state is different from last_observed_state,
@@ -267,9 +266,10 @@
     and description passed in.
     Importantly, this function does not send status nor description to the
     remote endpoint. */
-GRPCAPI grpc_call_error
-grpc_call_cancel_with_status(grpc_call *call, grpc_status_code status,
-                             const char *description, void *reserved);
+GRPCAPI grpc_call_error grpc_call_cancel_with_status(grpc_call *call,
+                                                     grpc_status_code status,
+                                                     const char *description,
+                                                     void *reserved);
 
 /** Destroy a call.
     THREAD SAFETY: grpc_call_destroy is thread-compatible */
@@ -283,13 +283,11 @@
     to \a cq_bound_to_call.
     Note that \a cq_for_notification must have been registered to the server via
     \a grpc_server_register_completion_queue. */
-GRPCAPI grpc_call_error
-grpc_server_request_call(grpc_server *server, grpc_call **call,
-                         grpc_call_details *details,
-                         grpc_metadata_array *request_metadata,
-                         grpc_completion_queue *cq_bound_to_call,
-                         grpc_completion_queue *cq_for_notification,
-                         void *tag_new);
+GRPCAPI grpc_call_error grpc_server_request_call(
+    grpc_server *server, grpc_call **call, grpc_call_details *details,
+    grpc_metadata_array *request_metadata,
+    grpc_completion_queue *cq_bound_to_call,
+    grpc_completion_queue *cq_for_notification, void *tag_new);
 
 /** Registers a method in the server.
     Methods to this (host, method) pair will not be reported by
diff --git a/include/grpc/grpc_security.h b/include/grpc/grpc_security.h
index 368d5dd..f2d04e5 100644
--- a/include/grpc/grpc_security.h
+++ b/include/grpc/grpc_security.h
@@ -80,9 +80,8 @@
 
 /* Finds a property in the context. May return an empty iterator (first _next
    will return NULL) if no property with this name was found in the context. */
-GRPCAPI grpc_auth_property_iterator
-grpc_auth_context_find_properties_by_name(const grpc_auth_context *ctx,
-                                          const char *name);
+GRPCAPI grpc_auth_property_iterator grpc_auth_context_find_properties_by_name(
+    const grpc_auth_context *ctx, const char *name);
 
 /* Gets the name of the property that indicates the peer identity. Will return
    NULL if the peer is not authenticated. */
@@ -363,8 +362,8 @@
 
 /* Sets a credentials to a call. Can only be called on the client side before
    grpc_call_start_batch. */
-GRPCAPI grpc_call_error
-grpc_call_set_credentials(grpc_call *call, grpc_call_credentials *creds);
+GRPCAPI grpc_call_error grpc_call_set_credentials(grpc_call *call,
+                                                  grpc_call_credentials *creds);
 
 /* --- Auth Metadata Processing --- */
 
diff --git a/include/grpc/impl/codegen/log.h b/include/grpc/impl/codegen/log.h
index d6e18e9..afd8c5d 100644
--- a/include/grpc/impl/codegen/log.h
+++ b/include/grpc/impl/codegen/log.h
@@ -34,8 +34,8 @@
 #ifndef GRPC_IMPL_CODEGEN_LOG_H
 #define GRPC_IMPL_CODEGEN_LOG_H
 
-#include <stdlib.h> /* for abort() */
 #include <stdarg.h>
+#include <stdlib.h> /* for abort() */
 
 #include <grpc/impl/codegen/port_platform.h>
 
diff --git a/include/grpc/impl/codegen/port_platform.h b/include/grpc/impl/codegen/port_platform.h
index fd55cb4..ed48411 100644
--- a/include/grpc/impl/codegen/port_platform.h
+++ b/include/grpc/impl/codegen/port_platform.h
@@ -133,6 +133,7 @@
 #define GPR_POSIX_TIME 1
 #define GPR_GETPID_IN_UNISTD_H 1
 #define GPR_HAVE_MSG_NOSIGNAL 1
+#define GPR_HAVE_UNIX_SOCKET 1
 #elif defined(__linux__)
 #define GPR_POSIX_CRASH_HANDLER 1
 #define GPR_PLATFORM_STRING "linux"
@@ -154,6 +155,7 @@
 #define GPR_POSIX_WAKEUP_FD 1
 #define GPR_POSIX_SOCKET 1
 #define GPR_POSIX_SOCKETADDR 1
+#define GPR_HAVE_UNIX_SOCKET 1
 #ifdef __GLIBC_PREREQ
 #if __GLIBC_PREREQ(2, 9)
 #define GPR_LINUX_EVENTFD 1
@@ -214,6 +216,7 @@
 #define GPR_POSIX_TIME 1
 #define GPR_GETPID_IN_UNISTD_H 1
 #define GPR_HAVE_SO_NOSIGPIPE 1
+#define GPR_HAVE_UNIX_SOCKET 1
 #ifdef _LP64
 #define GPR_ARCH_64 1
 #else /* _LP64 */
@@ -242,6 +245,7 @@
 #define GPR_POSIX_TIME 1
 #define GPR_GETPID_IN_UNISTD_H 1
 #define GPR_HAVE_SO_NOSIGPIPE 1
+#define GPR_HAVE_UNIX_SOCKET 1
 #ifdef _LP64
 #define GPR_ARCH_64 1
 #else /* _LP64 */
diff --git a/include/grpc/impl/codegen/slice.h b/include/grpc/impl/codegen/slice.h
index a62fdd0..03c59e7 100644
--- a/include/grpc/impl/codegen/slice.h
+++ b/include/grpc/impl/codegen/slice.h
@@ -122,8 +122,8 @@
 
 /* Equivalent to gpr_slice_new, but with a two argument destroy function that
    also takes the slice length. */
-GPRAPI gpr_slice
-gpr_slice_new_with_len(void *p, size_t len, void (*destroy)(void *, size_t));
+GPRAPI gpr_slice gpr_slice_new_with_len(void *p, size_t len,
+                                        void (*destroy)(void *, size_t));
 
 /* Equivalent to gpr_slice_new(malloc(len), len, free), but saves one malloc()
    call.
diff --git a/include/grpc/impl/codegen/slice_buffer.h b/include/grpc/impl/codegen/slice_buffer.h
index 4fe909e..7191878 100644
--- a/include/grpc/impl/codegen/slice_buffer.h
+++ b/include/grpc/impl/codegen/slice_buffer.h
@@ -73,8 +73,8 @@
    slice at the returned index in sb->slices)
    The implementation MAY decide to concatenate data at the end of a small
    slice added in this fashion. */
-GPRAPI size_t
-gpr_slice_buffer_add_indexed(gpr_slice_buffer *sb, gpr_slice slice);
+GPRAPI size_t gpr_slice_buffer_add_indexed(gpr_slice_buffer *sb,
+                                           gpr_slice slice);
 GPRAPI void gpr_slice_buffer_addn(gpr_slice_buffer *sb, gpr_slice *slices,
                                   size_t n);
 /* add a very small (less than 8 bytes) amount of data to the end of a slice
diff --git a/include/grpc/impl/codegen/time.h b/include/grpc/impl/codegen/time.h
index c22bedf..b4f4509 100644
--- a/include/grpc/impl/codegen/time.h
+++ b/include/grpc/impl/codegen/time.h
@@ -88,8 +88,8 @@
 GPRAPI gpr_timespec gpr_now(gpr_clock_type clock);
 
 /* Convert a timespec from one clock to another */
-GPRAPI gpr_timespec
-gpr_convert_clock_type(gpr_timespec t, gpr_clock_type target_clock);
+GPRAPI gpr_timespec gpr_convert_clock_type(gpr_timespec t,
+                                           gpr_clock_type target_clock);
 
 /* Return -ve, 0, or +ve according to whether a < b, a == b, or a > b
    respectively.  */
diff --git a/package.json b/package.json
index 8278549..78b5496 100644
--- a/package.json
+++ b/package.json
@@ -99,303 +99,306 @@
     "include/grpc/impl/codegen/propagation_bits.h",
     "include/grpc/impl/codegen/status.h",
     "include/grpc/census.h",
-    "src/core/census/grpc_filter.h",
-    "src/core/census/grpc_plugin.h",
-    "src/core/channel/channel_args.h",
-    "src/core/channel/channel_stack.h",
-    "src/core/channel/channel_stack_builder.h",
-    "src/core/channel/client_channel.h",
-    "src/core/channel/client_uchannel.h",
-    "src/core/channel/compress_filter.h",
-    "src/core/channel/connected_channel.h",
-    "src/core/channel/context.h",
-    "src/core/channel/http_client_filter.h",
-    "src/core/channel/http_server_filter.h",
-    "src/core/channel/subchannel_call_holder.h",
-    "src/core/client_config/client_config.h",
-    "src/core/client_config/connector.h",
-    "src/core/client_config/initial_connect_string.h",
-    "src/core/client_config/lb_policies/load_balancer_api.h",
-    "src/core/client_config/lb_policies/pick_first.h",
-    "src/core/client_config/lb_policies/round_robin.h",
-    "src/core/client_config/lb_policy.h",
-    "src/core/client_config/lb_policy_factory.h",
-    "src/core/client_config/lb_policy_registry.h",
-    "src/core/client_config/resolver.h",
-    "src/core/client_config/resolver_factory.h",
-    "src/core/client_config/resolver_registry.h",
-    "src/core/client_config/resolvers/dns_resolver.h",
-    "src/core/client_config/resolvers/sockaddr_resolver.h",
-    "src/core/client_config/subchannel.h",
-    "src/core/client_config/subchannel_factory.h",
-    "src/core/client_config/subchannel_index.h",
-    "src/core/client_config/uri_parser.h",
-    "src/core/compression/algorithm_metadata.h",
-    "src/core/compression/message_compress.h",
-    "src/core/debug/trace.h",
-    "src/core/httpcli/format_request.h",
-    "src/core/httpcli/httpcli.h",
-    "src/core/httpcli/parser.h",
-    "src/core/iomgr/closure.h",
-    "src/core/iomgr/endpoint.h",
-    "src/core/iomgr/endpoint_pair.h",
-    "src/core/iomgr/ev_poll_and_epoll_posix.h",
-    "src/core/iomgr/ev_posix.h",
-    "src/core/iomgr/exec_ctx.h",
-    "src/core/iomgr/executor.h",
-    "src/core/iomgr/iocp_windows.h",
-    "src/core/iomgr/iomgr.h",
-    "src/core/iomgr/iomgr_internal.h",
-    "src/core/iomgr/iomgr_posix.h",
-    "src/core/iomgr/pollset.h",
-    "src/core/iomgr/pollset_set.h",
-    "src/core/iomgr/pollset_set_windows.h",
-    "src/core/iomgr/pollset_windows.h",
-    "src/core/iomgr/resolve_address.h",
-    "src/core/iomgr/sockaddr.h",
-    "src/core/iomgr/sockaddr_posix.h",
-    "src/core/iomgr/sockaddr_utils.h",
-    "src/core/iomgr/sockaddr_win32.h",
-    "src/core/iomgr/socket_utils_posix.h",
-    "src/core/iomgr/socket_windows.h",
-    "src/core/iomgr/tcp_client.h",
-    "src/core/iomgr/tcp_posix.h",
-    "src/core/iomgr/tcp_server.h",
-    "src/core/iomgr/tcp_windows.h",
-    "src/core/iomgr/time_averaged_stats.h",
-    "src/core/iomgr/timer.h",
-    "src/core/iomgr/timer_heap.h",
-    "src/core/iomgr/udp_server.h",
-    "src/core/iomgr/wakeup_fd_pipe.h",
-    "src/core/iomgr/wakeup_fd_posix.h",
-    "src/core/iomgr/workqueue.h",
-    "src/core/iomgr/workqueue_posix.h",
-    "src/core/iomgr/workqueue_windows.h",
-    "src/core/json/json.h",
-    "src/core/json/json_common.h",
-    "src/core/json/json_reader.h",
-    "src/core/json/json_writer.h",
-    "src/core/proto/grpc/lb/v0/load_balancer.pb.h",
-    "src/core/statistics/census_interface.h",
-    "src/core/statistics/census_rpc_stats.h",
-    "src/core/surface/api_trace.h",
-    "src/core/surface/call.h",
-    "src/core/surface/call_test_only.h",
-    "src/core/surface/channel.h",
-    "src/core/surface/channel_init.h",
-    "src/core/surface/channel_stack_type.h",
-    "src/core/surface/completion_queue.h",
-    "src/core/surface/event_string.h",
-    "src/core/surface/init.h",
-    "src/core/surface/lame_client.h",
-    "src/core/surface/server.h",
-    "src/core/surface/surface_trace.h",
-    "src/core/transport/byte_stream.h",
-    "src/core/transport/chttp2/alpn.h",
-    "src/core/transport/chttp2/bin_encoder.h",
-    "src/core/transport/chttp2/frame.h",
-    "src/core/transport/chttp2/frame_data.h",
-    "src/core/transport/chttp2/frame_goaway.h",
-    "src/core/transport/chttp2/frame_ping.h",
-    "src/core/transport/chttp2/frame_rst_stream.h",
-    "src/core/transport/chttp2/frame_settings.h",
-    "src/core/transport/chttp2/frame_window_update.h",
-    "src/core/transport/chttp2/hpack_encoder.h",
-    "src/core/transport/chttp2/hpack_parser.h",
-    "src/core/transport/chttp2/hpack_table.h",
-    "src/core/transport/chttp2/http2_errors.h",
-    "src/core/transport/chttp2/huffsyms.h",
-    "src/core/transport/chttp2/incoming_metadata.h",
-    "src/core/transport/chttp2/internal.h",
-    "src/core/transport/chttp2/status_conversion.h",
-    "src/core/transport/chttp2/stream_map.h",
-    "src/core/transport/chttp2/timeout_encoding.h",
-    "src/core/transport/chttp2/varint.h",
-    "src/core/transport/chttp2_transport.h",
-    "src/core/transport/connectivity_state.h",
-    "src/core/transport/metadata.h",
-    "src/core/transport/metadata_batch.h",
-    "src/core/transport/static_metadata.h",
-    "src/core/transport/transport.h",
-    "src/core/transport/transport_impl.h",
-    "src/core/security/auth_filters.h",
-    "src/core/security/b64.h",
-    "src/core/security/credentials.h",
-    "src/core/security/handshake.h",
-    "src/core/security/json_token.h",
-    "src/core/security/jwt_verifier.h",
-    "src/core/security/secure_endpoint.h",
-    "src/core/security/security_connector.h",
-    "src/core/security/security_context.h",
-    "src/core/tsi/fake_transport_security.h",
-    "src/core/tsi/ssl_transport_security.h",
-    "src/core/tsi/ssl_types.h",
-    "src/core/tsi/transport_security.h",
-    "src/core/tsi/transport_security_interface.h",
-    "src/core/census/aggregation.h",
-    "src/core/census/mlog.h",
-    "src/core/census/rpc_metric_id.h",
+    "src/core/lib/census/grpc_filter.h",
+    "src/core/lib/census/grpc_plugin.h",
+    "src/core/lib/channel/channel_args.h",
+    "src/core/lib/channel/channel_stack.h",
+    "src/core/lib/channel/channel_stack_builder.h",
+    "src/core/lib/channel/client_channel.h",
+    "src/core/lib/channel/compress_filter.h",
+    "src/core/lib/channel/connected_channel.h",
+    "src/core/lib/channel/context.h",
+    "src/core/lib/channel/http_client_filter.h",
+    "src/core/lib/channel/http_server_filter.h",
+    "src/core/lib/channel/subchannel_call_holder.h",
+    "src/core/lib/client_config/client_config.h",
+    "src/core/lib/client_config/connector.h",
+    "src/core/lib/client_config/initial_connect_string.h",
+    "src/core/lib/client_config/lb_policies/load_balancer_api.h",
+    "src/core/lib/client_config/lb_policies/pick_first.h",
+    "src/core/lib/client_config/lb_policies/round_robin.h",
+    "src/core/lib/client_config/lb_policy.h",
+    "src/core/lib/client_config/lb_policy_factory.h",
+    "src/core/lib/client_config/lb_policy_registry.h",
+    "src/core/lib/client_config/resolver.h",
+    "src/core/lib/client_config/resolver_factory.h",
+    "src/core/lib/client_config/resolver_registry.h",
+    "src/core/lib/client_config/resolvers/dns_resolver.h",
+    "src/core/lib/client_config/resolvers/sockaddr_resolver.h",
+    "src/core/lib/client_config/subchannel.h",
+    "src/core/lib/client_config/subchannel_factory.h",
+    "src/core/lib/client_config/subchannel_index.h",
+    "src/core/lib/client_config/uri_parser.h",
+    "src/core/lib/compression/algorithm_metadata.h",
+    "src/core/lib/compression/message_compress.h",
+    "src/core/lib/debug/trace.h",
+    "src/core/lib/http/format_request.h",
+    "src/core/lib/http/httpcli.h",
+    "src/core/lib/http/parser.h",
+    "src/core/lib/iomgr/closure.h",
+    "src/core/lib/iomgr/endpoint.h",
+    "src/core/lib/iomgr/endpoint_pair.h",
+    "src/core/lib/iomgr/ev_poll_and_epoll_posix.h",
+    "src/core/lib/iomgr/ev_posix.h",
+    "src/core/lib/iomgr/exec_ctx.h",
+    "src/core/lib/iomgr/executor.h",
+    "src/core/lib/iomgr/iocp_windows.h",
+    "src/core/lib/iomgr/iomgr.h",
+    "src/core/lib/iomgr/iomgr_internal.h",
+    "src/core/lib/iomgr/iomgr_posix.h",
+    "src/core/lib/iomgr/pollset.h",
+    "src/core/lib/iomgr/pollset_posix.h",
+    "src/core/lib/iomgr/pollset_set.h",
+    "src/core/lib/iomgr/pollset_set_posix.h",
+    "src/core/lib/iomgr/pollset_set_windows.h",
+    "src/core/lib/iomgr/pollset_windows.h",
+    "src/core/lib/iomgr/resolve_address.h",
+    "src/core/lib/iomgr/sockaddr.h",
+    "src/core/lib/iomgr/sockaddr_posix.h",
+    "src/core/lib/iomgr/sockaddr_utils.h",
+    "src/core/lib/iomgr/sockaddr_win32.h",
+    "src/core/lib/iomgr/socket_utils_posix.h",
+    "src/core/lib/iomgr/socket_windows.h",
+    "src/core/lib/iomgr/tcp_client.h",
+    "src/core/lib/iomgr/tcp_posix.h",
+    "src/core/lib/iomgr/tcp_server.h",
+    "src/core/lib/iomgr/tcp_windows.h",
+    "src/core/lib/iomgr/time_averaged_stats.h",
+    "src/core/lib/iomgr/timer.h",
+    "src/core/lib/iomgr/timer_heap.h",
+    "src/core/lib/iomgr/udp_server.h",
+    "src/core/lib/iomgr/unix_sockets_posix.h",
+    "src/core/lib/iomgr/wakeup_fd_pipe.h",
+    "src/core/lib/iomgr/wakeup_fd_posix.h",
+    "src/core/lib/iomgr/workqueue.h",
+    "src/core/lib/iomgr/workqueue_posix.h",
+    "src/core/lib/iomgr/workqueue_windows.h",
+    "src/core/lib/json/json.h",
+    "src/core/lib/json/json_common.h",
+    "src/core/lib/json/json_reader.h",
+    "src/core/lib/json/json_writer.h",
+    "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h",
+    "src/core/lib/statistics/census_interface.h",
+    "src/core/lib/statistics/census_rpc_stats.h",
+    "src/core/lib/surface/api_trace.h",
+    "src/core/lib/surface/call.h",
+    "src/core/lib/surface/call_test_only.h",
+    "src/core/lib/surface/channel.h",
+    "src/core/lib/surface/channel_init.h",
+    "src/core/lib/surface/channel_stack_type.h",
+    "src/core/lib/surface/completion_queue.h",
+    "src/core/lib/surface/event_string.h",
+    "src/core/lib/surface/init.h",
+    "src/core/lib/surface/lame_client.h",
+    "src/core/lib/surface/server.h",
+    "src/core/lib/surface/surface_trace.h",
+    "src/core/lib/transport/byte_stream.h",
+    "src/core/lib/transport/chttp2/alpn.h",
+    "src/core/lib/transport/chttp2/bin_encoder.h",
+    "src/core/lib/transport/chttp2/frame.h",
+    "src/core/lib/transport/chttp2/frame_data.h",
+    "src/core/lib/transport/chttp2/frame_goaway.h",
+    "src/core/lib/transport/chttp2/frame_ping.h",
+    "src/core/lib/transport/chttp2/frame_rst_stream.h",
+    "src/core/lib/transport/chttp2/frame_settings.h",
+    "src/core/lib/transport/chttp2/frame_window_update.h",
+    "src/core/lib/transport/chttp2/hpack_encoder.h",
+    "src/core/lib/transport/chttp2/hpack_parser.h",
+    "src/core/lib/transport/chttp2/hpack_table.h",
+    "src/core/lib/transport/chttp2/http2_errors.h",
+    "src/core/lib/transport/chttp2/huffsyms.h",
+    "src/core/lib/transport/chttp2/incoming_metadata.h",
+    "src/core/lib/transport/chttp2/internal.h",
+    "src/core/lib/transport/chttp2/status_conversion.h",
+    "src/core/lib/transport/chttp2/stream_map.h",
+    "src/core/lib/transport/chttp2/timeout_encoding.h",
+    "src/core/lib/transport/chttp2/varint.h",
+    "src/core/lib/transport/chttp2_transport.h",
+    "src/core/lib/transport/connectivity_state.h",
+    "src/core/lib/transport/metadata.h",
+    "src/core/lib/transport/metadata_batch.h",
+    "src/core/lib/transport/static_metadata.h",
+    "src/core/lib/transport/transport.h",
+    "src/core/lib/transport/transport_impl.h",
+    "src/core/lib/security/auth_filters.h",
+    "src/core/lib/security/b64.h",
+    "src/core/lib/security/credentials.h",
+    "src/core/lib/security/handshake.h",
+    "src/core/lib/security/json_token.h",
+    "src/core/lib/security/jwt_verifier.h",
+    "src/core/lib/security/secure_endpoint.h",
+    "src/core/lib/security/security_connector.h",
+    "src/core/lib/security/security_context.h",
+    "src/core/lib/tsi/fake_transport_security.h",
+    "src/core/lib/tsi/ssl_transport_security.h",
+    "src/core/lib/tsi/ssl_types.h",
+    "src/core/lib/tsi/transport_security.h",
+    "src/core/lib/tsi/transport_security_interface.h",
+    "src/core/lib/census/aggregation.h",
+    "src/core/lib/census/mlog.h",
+    "src/core/lib/census/rpc_metric_id.h",
     "third_party/nanopb/pb.h",
     "third_party/nanopb/pb_common.h",
     "third_party/nanopb/pb_decode.h",
     "third_party/nanopb/pb_encode.h",
-    "src/core/census/grpc_context.c",
-    "src/core/census/grpc_filter.c",
-    "src/core/census/grpc_plugin.c",
-    "src/core/channel/channel_args.c",
-    "src/core/channel/channel_stack.c",
-    "src/core/channel/channel_stack_builder.c",
-    "src/core/channel/client_channel.c",
-    "src/core/channel/client_uchannel.c",
-    "src/core/channel/compress_filter.c",
-    "src/core/channel/connected_channel.c",
-    "src/core/channel/http_client_filter.c",
-    "src/core/channel/http_server_filter.c",
-    "src/core/channel/subchannel_call_holder.c",
-    "src/core/client_config/client_config.c",
-    "src/core/client_config/connector.c",
-    "src/core/client_config/default_initial_connect_string.c",
-    "src/core/client_config/initial_connect_string.c",
-    "src/core/client_config/lb_policies/load_balancer_api.c",
-    "src/core/client_config/lb_policies/pick_first.c",
-    "src/core/client_config/lb_policies/round_robin.c",
-    "src/core/client_config/lb_policy.c",
-    "src/core/client_config/lb_policy_factory.c",
-    "src/core/client_config/lb_policy_registry.c",
-    "src/core/client_config/resolver.c",
-    "src/core/client_config/resolver_factory.c",
-    "src/core/client_config/resolver_registry.c",
-    "src/core/client_config/resolvers/dns_resolver.c",
-    "src/core/client_config/resolvers/sockaddr_resolver.c",
-    "src/core/client_config/subchannel.c",
-    "src/core/client_config/subchannel_factory.c",
-    "src/core/client_config/subchannel_index.c",
-    "src/core/client_config/uri_parser.c",
-    "src/core/compression/compression_algorithm.c",
-    "src/core/compression/message_compress.c",
-    "src/core/debug/trace.c",
-    "src/core/httpcli/format_request.c",
-    "src/core/httpcli/httpcli.c",
-    "src/core/httpcli/parser.c",
-    "src/core/iomgr/closure.c",
-    "src/core/iomgr/endpoint.c",
-    "src/core/iomgr/endpoint_pair_posix.c",
-    "src/core/iomgr/endpoint_pair_windows.c",
-    "src/core/iomgr/ev_poll_and_epoll_posix.c",
-    "src/core/iomgr/ev_posix.c",
-    "src/core/iomgr/exec_ctx.c",
-    "src/core/iomgr/executor.c",
-    "src/core/iomgr/iocp_windows.c",
-    "src/core/iomgr/iomgr.c",
-    "src/core/iomgr/iomgr_posix.c",
-    "src/core/iomgr/iomgr_windows.c",
-    "src/core/iomgr/pollset_set_windows.c",
-    "src/core/iomgr/pollset_windows.c",
-    "src/core/iomgr/resolve_address_posix.c",
-    "src/core/iomgr/resolve_address_windows.c",
-    "src/core/iomgr/sockaddr_utils.c",
-    "src/core/iomgr/socket_utils_common_posix.c",
-    "src/core/iomgr/socket_utils_linux.c",
-    "src/core/iomgr/socket_utils_posix.c",
-    "src/core/iomgr/socket_windows.c",
-    "src/core/iomgr/tcp_client_posix.c",
-    "src/core/iomgr/tcp_client_windows.c",
-    "src/core/iomgr/tcp_posix.c",
-    "src/core/iomgr/tcp_server_posix.c",
-    "src/core/iomgr/tcp_server_windows.c",
-    "src/core/iomgr/tcp_windows.c",
-    "src/core/iomgr/time_averaged_stats.c",
-    "src/core/iomgr/timer.c",
-    "src/core/iomgr/timer_heap.c",
-    "src/core/iomgr/udp_server.c",
-    "src/core/iomgr/wakeup_fd_eventfd.c",
-    "src/core/iomgr/wakeup_fd_nospecial.c",
-    "src/core/iomgr/wakeup_fd_pipe.c",
-    "src/core/iomgr/wakeup_fd_posix.c",
-    "src/core/iomgr/workqueue_posix.c",
-    "src/core/iomgr/workqueue_windows.c",
-    "src/core/json/json.c",
-    "src/core/json/json_reader.c",
-    "src/core/json/json_string.c",
-    "src/core/json/json_writer.c",
-    "src/core/proto/grpc/lb/v0/load_balancer.pb.c",
-    "src/core/surface/alarm.c",
-    "src/core/surface/api_trace.c",
-    "src/core/surface/byte_buffer.c",
-    "src/core/surface/byte_buffer_reader.c",
-    "src/core/surface/call.c",
-    "src/core/surface/call_details.c",
-    "src/core/surface/call_log_batch.c",
-    "src/core/surface/channel.c",
-    "src/core/surface/channel_connectivity.c",
-    "src/core/surface/channel_create.c",
-    "src/core/surface/channel_init.c",
-    "src/core/surface/channel_ping.c",
-    "src/core/surface/channel_stack_type.c",
-    "src/core/surface/completion_queue.c",
-    "src/core/surface/event_string.c",
-    "src/core/surface/init.c",
-    "src/core/surface/lame_client.c",
-    "src/core/surface/metadata_array.c",
-    "src/core/surface/server.c",
-    "src/core/surface/server_chttp2.c",
-    "src/core/surface/validate_metadata.c",
-    "src/core/surface/version.c",
-    "src/core/transport/byte_stream.c",
-    "src/core/transport/chttp2/alpn.c",
-    "src/core/transport/chttp2/bin_encoder.c",
-    "src/core/transport/chttp2/frame_data.c",
-    "src/core/transport/chttp2/frame_goaway.c",
-    "src/core/transport/chttp2/frame_ping.c",
-    "src/core/transport/chttp2/frame_rst_stream.c",
-    "src/core/transport/chttp2/frame_settings.c",
-    "src/core/transport/chttp2/frame_window_update.c",
-    "src/core/transport/chttp2/hpack_encoder.c",
-    "src/core/transport/chttp2/hpack_parser.c",
-    "src/core/transport/chttp2/hpack_table.c",
-    "src/core/transport/chttp2/huffsyms.c",
-    "src/core/transport/chttp2/incoming_metadata.c",
-    "src/core/transport/chttp2/parsing.c",
-    "src/core/transport/chttp2/status_conversion.c",
-    "src/core/transport/chttp2/stream_lists.c",
-    "src/core/transport/chttp2/stream_map.c",
-    "src/core/transport/chttp2/timeout_encoding.c",
-    "src/core/transport/chttp2/varint.c",
-    "src/core/transport/chttp2/writing.c",
-    "src/core/transport/chttp2_transport.c",
-    "src/core/transport/connectivity_state.c",
-    "src/core/transport/metadata.c",
-    "src/core/transport/metadata_batch.c",
-    "src/core/transport/static_metadata.c",
-    "src/core/transport/transport.c",
-    "src/core/transport/transport_op_string.c",
-    "src/core/httpcli/httpcli_security_connector.c",
-    "src/core/security/b64.c",
-    "src/core/security/client_auth_filter.c",
-    "src/core/security/credentials.c",
-    "src/core/security/credentials_metadata.c",
-    "src/core/security/credentials_posix.c",
-    "src/core/security/credentials_win32.c",
-    "src/core/security/google_default_credentials.c",
-    "src/core/security/handshake.c",
-    "src/core/security/json_token.c",
-    "src/core/security/jwt_verifier.c",
-    "src/core/security/secure_endpoint.c",
-    "src/core/security/security_connector.c",
-    "src/core/security/security_context.c",
-    "src/core/security/server_auth_filter.c",
-    "src/core/security/server_secure_chttp2.c",
-    "src/core/surface/init_secure.c",
-    "src/core/surface/secure_channel_create.c",
-    "src/core/tsi/fake_transport_security.c",
-    "src/core/tsi/ssl_transport_security.c",
-    "src/core/tsi/transport_security.c",
-    "src/core/census/context.c",
-    "src/core/census/initialize.c",
-    "src/core/census/mlog.c",
-    "src/core/census/operation.c",
-    "src/core/census/placeholders.c",
-    "src/core/census/tracing.c",
+    "src/core/lib/census/grpc_context.c",
+    "src/core/lib/census/grpc_filter.c",
+    "src/core/lib/census/grpc_plugin.c",
+    "src/core/lib/channel/channel_args.c",
+    "src/core/lib/channel/channel_stack.c",
+    "src/core/lib/channel/channel_stack_builder.c",
+    "src/core/lib/channel/client_channel.c",
+    "src/core/lib/channel/compress_filter.c",
+    "src/core/lib/channel/connected_channel.c",
+    "src/core/lib/channel/http_client_filter.c",
+    "src/core/lib/channel/http_server_filter.c",
+    "src/core/lib/channel/subchannel_call_holder.c",
+    "src/core/lib/client_config/client_config.c",
+    "src/core/lib/client_config/connector.c",
+    "src/core/lib/client_config/default_initial_connect_string.c",
+    "src/core/lib/client_config/initial_connect_string.c",
+    "src/core/lib/client_config/lb_policies/load_balancer_api.c",
+    "src/core/lib/client_config/lb_policies/pick_first.c",
+    "src/core/lib/client_config/lb_policies/round_robin.c",
+    "src/core/lib/client_config/lb_policy.c",
+    "src/core/lib/client_config/lb_policy_factory.c",
+    "src/core/lib/client_config/lb_policy_registry.c",
+    "src/core/lib/client_config/resolver.c",
+    "src/core/lib/client_config/resolver_factory.c",
+    "src/core/lib/client_config/resolver_registry.c",
+    "src/core/lib/client_config/resolvers/dns_resolver.c",
+    "src/core/lib/client_config/resolvers/sockaddr_resolver.c",
+    "src/core/lib/client_config/subchannel.c",
+    "src/core/lib/client_config/subchannel_factory.c",
+    "src/core/lib/client_config/subchannel_index.c",
+    "src/core/lib/client_config/uri_parser.c",
+    "src/core/lib/compression/compression_algorithm.c",
+    "src/core/lib/compression/message_compress.c",
+    "src/core/lib/debug/trace.c",
+    "src/core/lib/http/format_request.c",
+    "src/core/lib/http/httpcli.c",
+    "src/core/lib/http/parser.c",
+    "src/core/lib/iomgr/closure.c",
+    "src/core/lib/iomgr/endpoint.c",
+    "src/core/lib/iomgr/endpoint_pair_posix.c",
+    "src/core/lib/iomgr/endpoint_pair_windows.c",
+    "src/core/lib/iomgr/ev_poll_and_epoll_posix.c",
+    "src/core/lib/iomgr/ev_posix.c",
+    "src/core/lib/iomgr/exec_ctx.c",
+    "src/core/lib/iomgr/executor.c",
+    "src/core/lib/iomgr/iocp_windows.c",
+    "src/core/lib/iomgr/iomgr.c",
+    "src/core/lib/iomgr/iomgr_posix.c",
+    "src/core/lib/iomgr/iomgr_windows.c",
+    "src/core/lib/iomgr/pollset_set_windows.c",
+    "src/core/lib/iomgr/pollset_windows.c",
+    "src/core/lib/iomgr/resolve_address_posix.c",
+    "src/core/lib/iomgr/resolve_address_windows.c",
+    "src/core/lib/iomgr/sockaddr_utils.c",
+    "src/core/lib/iomgr/socket_utils_common_posix.c",
+    "src/core/lib/iomgr/socket_utils_linux.c",
+    "src/core/lib/iomgr/socket_utils_posix.c",
+    "src/core/lib/iomgr/socket_windows.c",
+    "src/core/lib/iomgr/tcp_client_posix.c",
+    "src/core/lib/iomgr/tcp_client_windows.c",
+    "src/core/lib/iomgr/tcp_posix.c",
+    "src/core/lib/iomgr/tcp_server_posix.c",
+    "src/core/lib/iomgr/tcp_server_windows.c",
+    "src/core/lib/iomgr/tcp_windows.c",
+    "src/core/lib/iomgr/time_averaged_stats.c",
+    "src/core/lib/iomgr/timer.c",
+    "src/core/lib/iomgr/timer_heap.c",
+    "src/core/lib/iomgr/udp_server.c",
+    "src/core/lib/iomgr/unix_sockets_posix.c",
+    "src/core/lib/iomgr/unix_sockets_posix_noop.c",
+    "src/core/lib/iomgr/wakeup_fd_eventfd.c",
+    "src/core/lib/iomgr/wakeup_fd_nospecial.c",
+    "src/core/lib/iomgr/wakeup_fd_pipe.c",
+    "src/core/lib/iomgr/wakeup_fd_posix.c",
+    "src/core/lib/iomgr/workqueue_posix.c",
+    "src/core/lib/iomgr/workqueue_windows.c",
+    "src/core/lib/json/json.c",
+    "src/core/lib/json/json_reader.c",
+    "src/core/lib/json/json_string.c",
+    "src/core/lib/json/json_writer.c",
+    "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c",
+    "src/core/lib/surface/alarm.c",
+    "src/core/lib/surface/api_trace.c",
+    "src/core/lib/surface/byte_buffer.c",
+    "src/core/lib/surface/byte_buffer_reader.c",
+    "src/core/lib/surface/call.c",
+    "src/core/lib/surface/call_details.c",
+    "src/core/lib/surface/call_log_batch.c",
+    "src/core/lib/surface/channel.c",
+    "src/core/lib/surface/channel_connectivity.c",
+    "src/core/lib/surface/channel_create.c",
+    "src/core/lib/surface/channel_init.c",
+    "src/core/lib/surface/channel_ping.c",
+    "src/core/lib/surface/channel_stack_type.c",
+    "src/core/lib/surface/completion_queue.c",
+    "src/core/lib/surface/event_string.c",
+    "src/core/lib/surface/init.c",
+    "src/core/lib/surface/lame_client.c",
+    "src/core/lib/surface/metadata_array.c",
+    "src/core/lib/surface/server.c",
+    "src/core/lib/surface/server_chttp2.c",
+    "src/core/lib/surface/validate_metadata.c",
+    "src/core/lib/surface/version.c",
+    "src/core/lib/transport/byte_stream.c",
+    "src/core/lib/transport/chttp2/alpn.c",
+    "src/core/lib/transport/chttp2/bin_encoder.c",
+    "src/core/lib/transport/chttp2/frame_data.c",
+    "src/core/lib/transport/chttp2/frame_goaway.c",
+    "src/core/lib/transport/chttp2/frame_ping.c",
+    "src/core/lib/transport/chttp2/frame_rst_stream.c",
+    "src/core/lib/transport/chttp2/frame_settings.c",
+    "src/core/lib/transport/chttp2/frame_window_update.c",
+    "src/core/lib/transport/chttp2/hpack_encoder.c",
+    "src/core/lib/transport/chttp2/hpack_parser.c",
+    "src/core/lib/transport/chttp2/hpack_table.c",
+    "src/core/lib/transport/chttp2/huffsyms.c",
+    "src/core/lib/transport/chttp2/incoming_metadata.c",
+    "src/core/lib/transport/chttp2/parsing.c",
+    "src/core/lib/transport/chttp2/status_conversion.c",
+    "src/core/lib/transport/chttp2/stream_lists.c",
+    "src/core/lib/transport/chttp2/stream_map.c",
+    "src/core/lib/transport/chttp2/timeout_encoding.c",
+    "src/core/lib/transport/chttp2/varint.c",
+    "src/core/lib/transport/chttp2/writing.c",
+    "src/core/lib/transport/chttp2_transport.c",
+    "src/core/lib/transport/connectivity_state.c",
+    "src/core/lib/transport/metadata.c",
+    "src/core/lib/transport/metadata_batch.c",
+    "src/core/lib/transport/static_metadata.c",
+    "src/core/lib/transport/transport.c",
+    "src/core/lib/transport/transport_op_string.c",
+    "src/core/lib/http/httpcli_security_connector.c",
+    "src/core/lib/security/b64.c",
+    "src/core/lib/security/client_auth_filter.c",
+    "src/core/lib/security/credentials.c",
+    "src/core/lib/security/credentials_metadata.c",
+    "src/core/lib/security/credentials_posix.c",
+    "src/core/lib/security/credentials_win32.c",
+    "src/core/lib/security/google_default_credentials.c",
+    "src/core/lib/security/handshake.c",
+    "src/core/lib/security/json_token.c",
+    "src/core/lib/security/jwt_verifier.c",
+    "src/core/lib/security/secure_endpoint.c",
+    "src/core/lib/security/security_connector.c",
+    "src/core/lib/security/security_context.c",
+    "src/core/lib/security/server_auth_filter.c",
+    "src/core/lib/security/server_secure_chttp2.c",
+    "src/core/lib/surface/init_secure.c",
+    "src/core/lib/surface/secure_channel_create.c",
+    "src/core/lib/tsi/fake_transport_security.c",
+    "src/core/lib/tsi/ssl_transport_security.c",
+    "src/core/lib/tsi/transport_security.c",
+    "src/core/lib/census/context.c",
+    "src/core/lib/census/initialize.c",
+    "src/core/lib/census/mlog.c",
+    "src/core/lib/census/operation.c",
+    "src/core/lib/census/placeholders.c",
+    "src/core/lib/census/tracing.c",
     "third_party/nanopb/pb_common.c",
     "third_party/nanopb/pb_decode.c",
     "third_party/nanopb/pb_encode.c",
@@ -868,62 +871,62 @@
     "include/grpc/impl/codegen/sync_posix.h",
     "include/grpc/impl/codegen/sync_win32.h",
     "include/grpc/impl/codegen/time.h",
-    "src/core/profiling/timers.h",
-    "src/core/support/backoff.h",
-    "src/core/support/block_annotate.h",
-    "src/core/support/env.h",
-    "src/core/support/load_file.h",
-    "src/core/support/murmur_hash.h",
-    "src/core/support/stack_lockfree.h",
-    "src/core/support/string.h",
-    "src/core/support/string_win32.h",
-    "src/core/support/thd_internal.h",
-    "src/core/support/time_precise.h",
-    "src/core/support/tmpfile.h",
-    "src/core/profiling/basic_timers.c",
-    "src/core/profiling/stap_timers.c",
-    "src/core/support/alloc.c",
-    "src/core/support/avl.c",
-    "src/core/support/backoff.c",
-    "src/core/support/cmdline.c",
-    "src/core/support/cpu_iphone.c",
-    "src/core/support/cpu_linux.c",
-    "src/core/support/cpu_posix.c",
-    "src/core/support/cpu_windows.c",
-    "src/core/support/env_linux.c",
-    "src/core/support/env_posix.c",
-    "src/core/support/env_win32.c",
-    "src/core/support/histogram.c",
-    "src/core/support/host_port.c",
-    "src/core/support/load_file.c",
-    "src/core/support/log.c",
-    "src/core/support/log_android.c",
-    "src/core/support/log_linux.c",
-    "src/core/support/log_posix.c",
-    "src/core/support/log_win32.c",
-    "src/core/support/murmur_hash.c",
-    "src/core/support/slice.c",
-    "src/core/support/slice_buffer.c",
-    "src/core/support/stack_lockfree.c",
-    "src/core/support/string.c",
-    "src/core/support/string_posix.c",
-    "src/core/support/string_win32.c",
-    "src/core/support/subprocess_posix.c",
-    "src/core/support/subprocess_windows.c",
-    "src/core/support/sync.c",
-    "src/core/support/sync_posix.c",
-    "src/core/support/sync_win32.c",
-    "src/core/support/thd.c",
-    "src/core/support/thd_posix.c",
-    "src/core/support/thd_win32.c",
-    "src/core/support/time.c",
-    "src/core/support/time_posix.c",
-    "src/core/support/time_precise.c",
-    "src/core/support/time_win32.c",
-    "src/core/support/tls_pthread.c",
-    "src/core/support/tmpfile_posix.c",
-    "src/core/support/tmpfile_win32.c",
-    "src/core/support/wrap_memcpy.c",
+    "src/core/lib/profiling/timers.h",
+    "src/core/lib/support/backoff.h",
+    "src/core/lib/support/block_annotate.h",
+    "src/core/lib/support/env.h",
+    "src/core/lib/support/load_file.h",
+    "src/core/lib/support/murmur_hash.h",
+    "src/core/lib/support/stack_lockfree.h",
+    "src/core/lib/support/string.h",
+    "src/core/lib/support/string_win32.h",
+    "src/core/lib/support/thd_internal.h",
+    "src/core/lib/support/time_precise.h",
+    "src/core/lib/support/tmpfile.h",
+    "src/core/lib/profiling/basic_timers.c",
+    "src/core/lib/profiling/stap_timers.c",
+    "src/core/lib/support/alloc.c",
+    "src/core/lib/support/avl.c",
+    "src/core/lib/support/backoff.c",
+    "src/core/lib/support/cmdline.c",
+    "src/core/lib/support/cpu_iphone.c",
+    "src/core/lib/support/cpu_linux.c",
+    "src/core/lib/support/cpu_posix.c",
+    "src/core/lib/support/cpu_windows.c",
+    "src/core/lib/support/env_linux.c",
+    "src/core/lib/support/env_posix.c",
+    "src/core/lib/support/env_win32.c",
+    "src/core/lib/support/histogram.c",
+    "src/core/lib/support/host_port.c",
+    "src/core/lib/support/load_file.c",
+    "src/core/lib/support/log.c",
+    "src/core/lib/support/log_android.c",
+    "src/core/lib/support/log_linux.c",
+    "src/core/lib/support/log_posix.c",
+    "src/core/lib/support/log_win32.c",
+    "src/core/lib/support/murmur_hash.c",
+    "src/core/lib/support/slice.c",
+    "src/core/lib/support/slice_buffer.c",
+    "src/core/lib/support/stack_lockfree.c",
+    "src/core/lib/support/string.c",
+    "src/core/lib/support/string_posix.c",
+    "src/core/lib/support/string_win32.c",
+    "src/core/lib/support/subprocess_posix.c",
+    "src/core/lib/support/subprocess_windows.c",
+    "src/core/lib/support/sync.c",
+    "src/core/lib/support/sync_posix.c",
+    "src/core/lib/support/sync_win32.c",
+    "src/core/lib/support/thd.c",
+    "src/core/lib/support/thd_posix.c",
+    "src/core/lib/support/thd_win32.c",
+    "src/core/lib/support/time.c",
+    "src/core/lib/support/time_posix.c",
+    "src/core/lib/support/time_precise.c",
+    "src/core/lib/support/time_win32.c",
+    "src/core/lib/support/tls_pthread.c",
+    "src/core/lib/support/tmpfile_posix.c",
+    "src/core/lib/support/tmpfile_win32.c",
+    "src/core/lib/support/wrap_memcpy.c",
     "binding.gyp"
   ],
   "main": "src/node/index.js",
diff --git a/package.xml b/package.xml
index d5c5b84..07e7d25 100644
--- a/package.xml
+++ b/package.xml
@@ -92,62 +92,62 @@
     <file baseinstalldir="/" name="include/grpc/impl/codegen/sync_posix.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/sync_win32.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/time.h" role="src" />
-    <file baseinstalldir="/" name="src/core/profiling/timers.h" role="src" />
-    <file baseinstalldir="/" name="src/core/support/backoff.h" role="src" />
-    <file baseinstalldir="/" name="src/core/support/block_annotate.h" role="src" />
-    <file baseinstalldir="/" name="src/core/support/env.h" role="src" />
-    <file baseinstalldir="/" name="src/core/support/load_file.h" role="src" />
-    <file baseinstalldir="/" name="src/core/support/murmur_hash.h" role="src" />
-    <file baseinstalldir="/" name="src/core/support/stack_lockfree.h" role="src" />
-    <file baseinstalldir="/" name="src/core/support/string.h" role="src" />
-    <file baseinstalldir="/" name="src/core/support/string_win32.h" role="src" />
-    <file baseinstalldir="/" name="src/core/support/thd_internal.h" role="src" />
-    <file baseinstalldir="/" name="src/core/support/time_precise.h" role="src" />
-    <file baseinstalldir="/" name="src/core/support/tmpfile.h" role="src" />
-    <file baseinstalldir="/" name="src/core/profiling/basic_timers.c" role="src" />
-    <file baseinstalldir="/" name="src/core/profiling/stap_timers.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/alloc.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/avl.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/backoff.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/cmdline.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/cpu_iphone.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/cpu_linux.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/cpu_posix.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/cpu_windows.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/env_linux.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/env_posix.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/env_win32.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/histogram.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/host_port.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/load_file.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/log.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/log_android.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/log_linux.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/log_posix.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/log_win32.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/murmur_hash.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/slice.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/slice_buffer.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/stack_lockfree.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/string.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/string_posix.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/string_win32.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/subprocess_posix.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/subprocess_windows.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/sync.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/sync_posix.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/sync_win32.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/thd.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/thd_posix.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/thd_win32.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/time.c" role="src" />
-    <file baseinstalldir="/" name="src/core/support/time_posix.c" role="src" />
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-    <file baseinstalldir="/" name="src/core/support/time_win32.c" role="src" />
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-    <file baseinstalldir="/" name="src/core/transport/connectivity_state.c" role="src" />
-    <file baseinstalldir="/" name="src/core/transport/metadata.c" role="src" />
-    <file baseinstalldir="/" name="src/core/transport/metadata_batch.c" role="src" />
-    <file baseinstalldir="/" name="src/core/transport/static_metadata.c" role="src" />
-    <file baseinstalldir="/" name="src/core/transport/transport.c" role="src" />
-    <file baseinstalldir="/" name="src/core/transport/transport_op_string.c" role="src" />
-    <file baseinstalldir="/" name="src/core/httpcli/httpcli_security_connector.c" role="src" />
-    <file baseinstalldir="/" name="src/core/security/b64.c" role="src" />
-    <file baseinstalldir="/" name="src/core/security/client_auth_filter.c" role="src" />
-    <file baseinstalldir="/" name="src/core/security/credentials.c" role="src" />
-    <file baseinstalldir="/" name="src/core/security/credentials_metadata.c" role="src" />
-    <file baseinstalldir="/" name="src/core/security/credentials_posix.c" role="src" />
-    <file baseinstalldir="/" name="src/core/security/credentials_win32.c" role="src" />
-    <file baseinstalldir="/" name="src/core/security/google_default_credentials.c" role="src" />
-    <file baseinstalldir="/" name="src/core/security/handshake.c" role="src" />
-    <file baseinstalldir="/" name="src/core/security/json_token.c" role="src" />
-    <file baseinstalldir="/" name="src/core/security/jwt_verifier.c" role="src" />
-    <file baseinstalldir="/" name="src/core/security/secure_endpoint.c" role="src" />
-    <file baseinstalldir="/" name="src/core/security/security_connector.c" role="src" />
-    <file baseinstalldir="/" name="src/core/security/security_context.c" role="src" />
-    <file baseinstalldir="/" name="src/core/security/server_auth_filter.c" role="src" />
-    <file baseinstalldir="/" name="src/core/security/server_secure_chttp2.c" role="src" />
-    <file baseinstalldir="/" name="src/core/surface/init_secure.c" role="src" />
-    <file baseinstalldir="/" name="src/core/surface/secure_channel_create.c" role="src" />
-    <file baseinstalldir="/" name="src/core/tsi/fake_transport_security.c" role="src" />
-    <file baseinstalldir="/" name="src/core/tsi/ssl_transport_security.c" role="src" />
-    <file baseinstalldir="/" name="src/core/tsi/transport_security.c" role="src" />
-    <file baseinstalldir="/" name="src/core/census/context.c" role="src" />
-    <file baseinstalldir="/" name="src/core/census/initialize.c" role="src" />
-    <file baseinstalldir="/" name="src/core/census/mlog.c" role="src" />
-    <file baseinstalldir="/" name="src/core/census/operation.c" role="src" />
-    <file baseinstalldir="/" name="src/core/census/placeholders.c" role="src" />
-    <file baseinstalldir="/" name="src/core/census/tracing.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/census/grpc_context.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/census/grpc_filter.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/census/grpc_plugin.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/channel/channel_args.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/channel/channel_stack.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/channel/channel_stack_builder.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/channel/client_channel.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/channel/compress_filter.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/channel/connected_channel.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/channel/http_client_filter.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/channel/http_server_filter.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/channel/subchannel_call_holder.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/client_config/client_config.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/client_config/connector.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/client_config/default_initial_connect_string.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/client_config/initial_connect_string.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/client_config/lb_policies/load_balancer_api.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/client_config/lb_policies/pick_first.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/client_config/lb_policies/round_robin.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/client_config/lb_policy.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/client_config/lb_policy_factory.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/client_config/lb_policy_registry.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/client_config/resolver.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/client_config/resolver_factory.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/client_config/resolver_registry.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/client_config/resolvers/dns_resolver.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/client_config/resolvers/sockaddr_resolver.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/client_config/subchannel.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/client_config/subchannel_factory.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/client_config/subchannel_index.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/client_config/uri_parser.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/compression/compression_algorithm.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/compression/message_compress.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/debug/trace.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/http/format_request.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/http/httpcli.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/http/parser.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/closure.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/endpoint.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/endpoint_pair_posix.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/endpoint_pair_windows.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/ev_poll_and_epoll_posix.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/ev_posix.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/exec_ctx.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/executor.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/iocp_windows.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/iomgr.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/iomgr_posix.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/iomgr_windows.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/pollset_set_windows.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/pollset_windows.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/resolve_address_posix.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/resolve_address_windows.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/sockaddr_utils.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/socket_utils_common_posix.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/socket_utils_linux.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/socket_utils_posix.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/socket_windows.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/tcp_client_posix.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/tcp_client_windows.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/tcp_posix.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/tcp_server_posix.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/tcp_server_windows.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/tcp_windows.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/time_averaged_stats.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/timer.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/timer_heap.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/udp_server.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/unix_sockets_posix.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/unix_sockets_posix_noop.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/wakeup_fd_eventfd.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/wakeup_fd_nospecial.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/wakeup_fd_pipe.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/wakeup_fd_posix.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/workqueue_posix.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/iomgr/workqueue_windows.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/json/json.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/json/json_reader.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/json/json_string.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/json/json_writer.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/surface/alarm.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/surface/api_trace.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/surface/byte_buffer.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/surface/byte_buffer_reader.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/surface/call.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/surface/call_details.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/surface/call_log_batch.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/surface/channel.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/surface/channel_connectivity.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/surface/channel_create.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/surface/channel_init.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/surface/channel_ping.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/surface/channel_stack_type.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/surface/completion_queue.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/surface/event_string.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/surface/init.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/surface/lame_client.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/surface/metadata_array.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/surface/server.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/surface/server_chttp2.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/surface/validate_metadata.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/surface/version.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/transport/byte_stream.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/transport/chttp2/alpn.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/transport/chttp2/bin_encoder.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/transport/chttp2/frame_data.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/transport/chttp2/frame_goaway.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/transport/chttp2/frame_ping.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/transport/chttp2/frame_rst_stream.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/transport/chttp2/frame_settings.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/transport/chttp2/frame_window_update.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/transport/chttp2/hpack_encoder.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/transport/chttp2/hpack_parser.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/transport/chttp2/hpack_table.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/transport/chttp2/huffsyms.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/transport/chttp2/incoming_metadata.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/transport/chttp2/parsing.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/transport/chttp2/status_conversion.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/transport/chttp2/stream_lists.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/transport/chttp2/stream_map.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/transport/chttp2/timeout_encoding.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/transport/chttp2/varint.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/transport/chttp2/writing.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/transport/chttp2_transport.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/transport/connectivity_state.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/transport/metadata.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/transport/metadata_batch.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/transport/static_metadata.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/transport/transport.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/transport/transport_op_string.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/http/httpcli_security_connector.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/security/b64.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/security/client_auth_filter.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/security/credentials.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/security/credentials_metadata.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/security/credentials_posix.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/security/credentials_win32.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/security/google_default_credentials.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/security/handshake.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/security/json_token.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/security/jwt_verifier.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/security/secure_endpoint.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/security/security_connector.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/security/security_context.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/security/server_auth_filter.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/security/server_secure_chttp2.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/surface/init_secure.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/surface/secure_channel_create.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/tsi/fake_transport_security.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/tsi/ssl_transport_security.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/tsi/transport_security.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/census/context.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/census/initialize.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/census/mlog.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/census/operation.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/census/placeholders.c" role="src" />
+    <file baseinstalldir="/" name="src/core/lib/census/tracing.c" role="src" />
     <file baseinstalldir="/" name="third_party/nanopb/pb_common.c" role="src" />
     <file baseinstalldir="/" name="third_party/nanopb/pb_decode.c" role="src" />
     <file baseinstalldir="/" name="third_party/nanopb/pb_encode.c" role="src" />
diff --git a/setup.py b/setup.py
index afa9872..9634de0 100644
--- a/setup.py
+++ b/setup.py
@@ -111,7 +111,7 @@
   DEFINE_MACROS += (('PyMODINIT_FUNC', pymodinit),)
 
 
-def cython_extensions(package_names, module_names, extra_sources, include_dirs,
+def cython_extensions(module_names, extra_sources, include_dirs,
                       libraries, define_macros, build_with_cython=False):
   # Set compiler directives linetrace argument only if we care about tracing;
   # this is due to Cython having different behavior between linetrace being
@@ -144,7 +144,7 @@
     return extensions
 
 CYTHON_EXTENSION_MODULES = cython_extensions(
-    list(CYTHON_EXTENSION_PACKAGE_NAMES), list(CYTHON_EXTENSION_MODULE_NAMES),
+    list(CYTHON_EXTENSION_MODULE_NAMES),
     list(CYTHON_HELPER_C_FILES) + list(CORE_C_FILES),
     list(EXTENSION_INCLUDE_DIRECTORIES), list(EXTENSION_LIBRARIES),
     list(DEFINE_MACROS), bool(BUILD_WITH_CYTHON))
diff --git a/src/compiler/cpp_generator.cc b/src/compiler/cpp_generator.cc
index 97295be..206a6e1 100644
--- a/src/compiler/cpp_generator.cc
+++ b/src/compiler/cpp_generator.cc
@@ -83,6 +83,28 @@
 }
 }  // namespace
 
+template<class T, size_t N>
+T *array_end(T (&array)[N]) { return array + N; }
+
+void PrintIncludes(grpc::protobuf::io::Printer *printer, const std::vector<grpc::string>& headers, const Parameters &params) {
+  std::map<grpc::string, grpc::string> vars;
+
+  vars["l"] = params.use_system_headers ? '<' : '"';
+  vars["r"] = params.use_system_headers ? '>' : '"';
+
+  if (!params.grpc_search_path.empty()) {
+    vars["l"] += params.grpc_search_path;
+    if (params.grpc_search_path.back() != '/') {
+      vars["l"] += '/';
+    }
+  }
+
+  for (auto i = headers.begin(); i != headers.end(); i++) {
+    vars["h"] = *i;
+    printer->Print(vars, "#include $l$$h$$r$\n");
+  }
+}
+
 grpc::string GetHeaderPrologue(const grpc::protobuf::FileDescriptor *file,
                                const Parameters &params) {
   grpc::string output;
@@ -111,36 +133,46 @@
 
 grpc::string GetHeaderIncludes(const grpc::protobuf::FileDescriptor *file,
                                const Parameters &params) {
-  grpc::string temp =
-      "#include <grpc++/impl/codegen/async_stream.h>\n"
-      "#include <grpc++/impl/codegen/async_unary_call.h>\n"
-      "#include <grpc++/impl/codegen/proto_utils.h>\n"
-      "#include <grpc++/impl/codegen/rpc_method.h>\n"
-      "#include <grpc++/impl/codegen/service_type.h>\n"
-      "#include <grpc++/impl/codegen/status.h>\n"
-      "#include <grpc++/impl/codegen/stub_options.h>\n"
-      "#include <grpc++/impl/codegen/sync_stream.h>\n"
-      "\n"
-      "namespace grpc {\n"
-      "class CompletionQueue;\n"
-      "class RpcService;\n"
-      "class ServerCompletionQueue;\n"
-      "class ServerContext;\n"
-      "}  // namespace grpc\n\n";
+  grpc::string output;
+  {
+    // Scope the output stream so it closes and finalizes output to the string.
+    grpc::protobuf::io::StringOutputStream output_stream(&output);
+    grpc::protobuf::io::Printer printer(&output_stream, '$');
+    std::map<grpc::string, grpc::string> vars;
 
-  if (!file->package().empty()) {
-    std::vector<grpc::string> parts =
-        grpc_generator::tokenize(file->package(), ".");
+    static const char *headers_strs[] = {
+      "grpc++/impl/codegen/async_stream.h",
+      "grpc++/impl/codegen/async_unary_call.h",
+      "grpc++/impl/codegen/proto_utils.h",
+      "grpc++/impl/codegen/rpc_method.h",
+      "grpc++/impl/codegen/service_type.h",
+      "grpc++/impl/codegen/status.h",
+      "grpc++/impl/codegen/stub_options.h",
+      "grpc++/impl/codegen/sync_stream.h"
+    };
+    std::vector<grpc::string> headers(headers_strs, array_end(headers_strs));
+    PrintIncludes(&printer, headers, params);
+    printer.Print(vars, "\n");
+    printer.Print(vars, "namespace grpc {\n");
+    printer.Print(vars, "class CompletionQueue;\n");
+    printer.Print(vars, "class Channel;\n");
+    printer.Print(vars, "class RpcService;\n");
+    printer.Print(vars, "class ServerCompletionQueue;\n");
+    printer.Print(vars, "class ServerContext;\n");
+    printer.Print(vars, "}  // namespace grpc\n\n");
 
-    for (auto part = parts.begin(); part != parts.end(); part++) {
-      temp.append("namespace ");
-      temp.append(*part);
-      temp.append(" {\n");
+    if (!file->package().empty()) {
+      std::vector<grpc::string> parts =
+          grpc_generator::tokenize(file->package(), ".");
+
+      for (auto part = parts.begin(); part != parts.end(); part++) {
+        vars["part"] = *part;
+        printer.Print(vars, "namespace $part$ {\n");
+      }
+      printer.Print(vars, "\n");
     }
-    temp.append("\n");
   }
-
-  return temp;
+  return output;
 }
 
 void PrintHeaderClientMethodInterfaces(
@@ -852,7 +884,7 @@
 }
 
 grpc::string GetSourceIncludes(const grpc::protobuf::FileDescriptor *file,
-                               const Parameters &param) {
+                               const Parameters &params) {
   grpc::string output;
   {
     // Scope the output stream so it closes and finalizes output to the string.
@@ -860,16 +892,18 @@
     grpc::protobuf::io::Printer printer(&output_stream, '$');
     std::map<grpc::string, grpc::string> vars;
 
-    printer.Print(vars, "#include <grpc++/impl/codegen/async_stream.h>\n");
-    printer.Print(vars, "#include <grpc++/impl/codegen/async_unary_call.h>\n");
-    printer.Print(vars, "#include <grpc++/impl/codegen/channel_interface.h>\n");
-    printer.Print(vars, "#include <grpc++/impl/codegen/client_unary_call.h>\n");
-    printer.Print(vars,
-                  "#include <grpc++/impl/codegen/method_handler_impl.h>\n");
-    printer.Print(vars,
-                  "#include <grpc++/impl/codegen/rpc_service_method.h>\n");
-    printer.Print(vars, "#include <grpc++/impl/codegen/service_type.h>\n");
-    printer.Print(vars, "#include <grpc++/impl/codegen/sync_stream.h>\n");
+    static const char *headers_strs[] = {
+      "grpc++/impl/codegen/async_stream.h",
+      "grpc++/impl/codegen/async_unary_call.h",
+      "grpc++/impl/codegen/channel_interface.h",
+      "grpc++/impl/codegen/client_unary_call.h",
+      "grpc++/impl/codegen/method_handler_impl.h",
+      "grpc++/impl/codegen/rpc_service_method.h",
+      "grpc++/impl/codegen/service_type.h",
+      "grpc++/impl/codegen/sync_stream.h"
+    };
+    std::vector<grpc::string> headers(headers_strs, array_end(headers_strs));
+    PrintIncludes(&printer, headers, params);
 
     if (!file->package().empty()) {
       std::vector<grpc::string> parts =
diff --git a/src/compiler/cpp_generator.h b/src/compiler/cpp_generator.h
index 70c2e98..4f9de9d 100644
--- a/src/compiler/cpp_generator.h
+++ b/src/compiler/cpp_generator.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -42,6 +42,10 @@
 struct Parameters {
   // Puts the service into a namespace
   grpc::string services_namespace;
+  // Use system includes (<>) or local includes ("")
+  bool use_system_headers;
+  // Prefix to any grpc include
+  grpc::string grpc_search_path;
 };
 
 // Return the prologue of the generated header file.
diff --git a/src/compiler/cpp_plugin.cc b/src/compiler/cpp_plugin.cc
index 88c7049..d8ada48 100644
--- a/src/compiler/cpp_plugin.cc
+++ b/src/compiler/cpp_plugin.cc
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -59,6 +59,7 @@
     }
 
     grpc_cpp_generator::Parameters generator_parameters;
+    generator_parameters.use_system_headers = true;
 
     if (!parameter.empty()) {
       std::vector<grpc::string> parameters_list =
@@ -70,6 +71,17 @@
           grpc_generator::tokenize(*parameter_string, "=");
         if (param[0] == "services_namespace") {
           generator_parameters.services_namespace = param[1];
+        } else if (param[0] == "use_system_headers") {
+          if (param[1] == "true") {
+            generator_parameters.use_system_headers = true;
+          } else if (param[1] == "false") {
+            generator_parameters.use_system_headers = false;
+          } else {
+            *error = grpc::string("Invalid parameter: ") + *parameter_string;
+            return false;
+          }
+        } else if (param[0] == "grpc_search_path") {
+          generator_parameters.grpc_search_path = param[1];
         } else {
           *error = grpc::string("Unknown parameter: ") + *parameter_string;
           return false;
diff --git a/src/compiler/python_generator.cc b/src/compiler/python_generator.cc
index 4fd5dfb..5a2ecce 100644
--- a/src/compiler/python_generator.cc
+++ b/src/compiler/python_generator.cc
@@ -190,11 +190,10 @@
         "Documentation", doc,
       });
   out->Print("\n");
-  out->Print(dict, "class Beta$Service$Servicer(object):\n");
+  out->Print(dict, "class Beta$Service$Servicer(six.with_metaclass(abc.ABCMeta, object)):\n");
   {
     IndentScope raii_class_indent(out);
     out->Print(dict, "\"\"\"$Documentation$\"\"\"\n");
-    out->Print("__metaclass__ = abc.ABCMeta\n");
     for (int i = 0; i < service->method_count(); ++i) {
       auto meth = service->method(i);
       grpc::string arg_name = meth->client_streaming() ?
@@ -219,11 +218,10 @@
         "Documentation", doc,
       });
   out->Print("\n");
-  out->Print(dict, "class Beta$Service$Stub(object):\n");
+  out->Print(dict, "class Beta$Service$Stub(six.with_metaclass(abc.ABCMeta, object)):\n");
   {
     IndentScope raii_class_indent(out);
     out->Print(dict, "\"\"\"$Documentation$\"\"\"\n");
-    out->Print("__metaclass__ = abc.ABCMeta\n");
     for (int i = 0; i < service->method_count(); ++i) {
       const MethodDescriptor* meth = service->method(i);
       grpc::string arg_name = meth->client_streaming() ?
@@ -449,6 +447,7 @@
 bool PrintPreamble(const FileDescriptor* file,
                    const GeneratorConfiguration& config, Printer* out) {
   out->Print("import abc\n");
+  out->Print("import six\n");
   out->Print("from $Package$ import implementations as beta_implementations\n",
              "Package", config.beta_package_root);
   out->Print("from grpc.framework.common import cardinality\n");
diff --git a/src/core/channel/client_uchannel.c b/src/core/channel/client_uchannel.c
deleted file mode 100644
index d323272..0000000
--- a/src/core/channel/client_uchannel.c
+++ /dev/null
@@ -1,233 +0,0 @@
-/*
- *
- * Copyright 2015-2016, Google Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#include "src/core/channel/client_uchannel.h"
-
-#include <string.h>
-
-#include "src/core/census/grpc_filter.h"
-#include "src/core/channel/channel_args.h"
-#include "src/core/channel/client_channel.h"
-#include "src/core/channel/compress_filter.h"
-#include "src/core/channel/subchannel_call_holder.h"
-#include "src/core/iomgr/iomgr.h"
-#include "src/core/support/string.h"
-#include "src/core/surface/channel.h"
-#include "src/core/transport/connectivity_state.h"
-
-#include <grpc/support/alloc.h>
-#include <grpc/support/log.h>
-#include <grpc/support/sync.h>
-#include <grpc/support/useful.h>
-
-/** Microchannel (uchannel) implementation: a lightweight channel without any
- * load-balancing mechanisms meant for communication from within the core. */
-
-typedef struct client_uchannel_channel_data {
-  /** master channel - the grpc_channel instance that ultimately owns
-      this channel_data via its channel stack.
-      We occasionally use this to bump the refcount on the master channel
-      to keep ourselves alive through an asynchronous operation. */
-  grpc_channel_stack *owning_stack;
-
-  /** connectivity state being tracked */
-  grpc_connectivity_state_tracker state_tracker;
-
-  /** the subchannel wrapped by the microchannel */
-  grpc_connected_subchannel *connected_subchannel;
-
-  /** the callback used to stay subscribed to subchannel connectivity
-   * notifications */
-  grpc_closure connectivity_cb;
-
-  /** the current connectivity state of the wrapped subchannel */
-  grpc_connectivity_state subchannel_connectivity;
-
-  gpr_mu mu_state;
-} channel_data;
-
-typedef grpc_subchannel_call_holder call_data;
-
-static void monitor_subchannel(grpc_exec_ctx *exec_ctx, void *arg,
-                               bool iomgr_success) {
-  channel_data *chand = arg;
-  grpc_connectivity_state_set(exec_ctx, &chand->state_tracker,
-                              chand->subchannel_connectivity,
-                              "uchannel_monitor_subchannel");
-  grpc_connected_subchannel_notify_on_state_change(
-      exec_ctx, chand->connected_subchannel, NULL,
-      &chand->subchannel_connectivity, &chand->connectivity_cb);
-}
-
-static char *cuc_get_peer(grpc_exec_ctx *exec_ctx, grpc_call_element *elem) {
-  return grpc_subchannel_call_holder_get_peer(exec_ctx, elem->call_data);
-}
-
-static void cuc_start_transport_stream_op(grpc_exec_ctx *exec_ctx,
-                                          grpc_call_element *elem,
-                                          grpc_transport_stream_op *op) {
-  GRPC_CALL_LOG_OP(GPR_INFO, elem, op);
-  grpc_subchannel_call_holder_perform_op(exec_ctx, elem->call_data, op);
-}
-
-static void cuc_start_transport_op(grpc_exec_ctx *exec_ctx,
-                                   grpc_channel_element *elem,
-                                   grpc_transport_op *op) {
-  channel_data *chand = elem->channel_data;
-
-  grpc_exec_ctx_enqueue(exec_ctx, op->on_consumed, true, NULL);
-
-  GPR_ASSERT(op->set_accept_stream == false);
-  GPR_ASSERT(op->bind_pollset == NULL);
-
-  if (op->on_connectivity_state_change != NULL) {
-    grpc_connectivity_state_notify_on_state_change(
-        exec_ctx, &chand->state_tracker, op->connectivity_state,
-        op->on_connectivity_state_change);
-    op->on_connectivity_state_change = NULL;
-    op->connectivity_state = NULL;
-  }
-
-  if (op->disconnect) {
-    grpc_connectivity_state_set(exec_ctx, &chand->state_tracker,
-                                GRPC_CHANNEL_FATAL_FAILURE, "disconnect");
-  }
-}
-
-static int cuc_pick_subchannel(grpc_exec_ctx *exec_ctx, void *arg,
-                               grpc_metadata_batch *initial_metadata,
-                               grpc_connected_subchannel **connected_subchannel,
-                               grpc_closure *on_ready) {
-  channel_data *chand = arg;
-  GPR_ASSERT(initial_metadata != NULL);
-  *connected_subchannel = chand->connected_subchannel;
-  return 1;
-}
-
-/* Constructor for call_data */
-static void cuc_init_call_elem(grpc_exec_ctx *exec_ctx, grpc_call_element *elem,
-                               grpc_call_element_args *args) {
-  grpc_subchannel_call_holder_init(elem->call_data, cuc_pick_subchannel,
-                                   elem->channel_data, args->call_stack);
-}
-
-/* Destructor for call_data */
-static void cuc_destroy_call_elem(grpc_exec_ctx *exec_ctx,
-                                  grpc_call_element *elem) {
-  grpc_subchannel_call_holder_destroy(exec_ctx, elem->call_data);
-}
-
-/* Constructor for channel_data */
-static void cuc_init_channel_elem(grpc_exec_ctx *exec_ctx,
-                                  grpc_channel_element *elem,
-                                  grpc_channel_element_args *args) {
-  channel_data *chand = elem->channel_data;
-  memset(chand, 0, sizeof(*chand));
-  grpc_closure_init(&chand->connectivity_cb, monitor_subchannel, chand);
-  GPR_ASSERT(args->is_last);
-  GPR_ASSERT(elem->filter == &grpc_client_uchannel_filter);
-  chand->owning_stack = args->channel_stack;
-  grpc_connectivity_state_init(&chand->state_tracker, GRPC_CHANNEL_IDLE,
-                               "client_uchannel");
-  gpr_mu_init(&chand->mu_state);
-}
-
-/* Destructor for channel_data */
-static void cuc_destroy_channel_elem(grpc_exec_ctx *exec_ctx,
-                                     grpc_channel_element *elem) {
-  channel_data *chand = elem->channel_data;
-  /* cancel subscription */
-  grpc_connected_subchannel_notify_on_state_change(
-      exec_ctx, chand->connected_subchannel, NULL, NULL,
-      &chand->connectivity_cb);
-  grpc_connectivity_state_destroy(exec_ctx, &chand->state_tracker);
-  gpr_mu_destroy(&chand->mu_state);
-  GRPC_CONNECTED_SUBCHANNEL_UNREF(exec_ctx, chand->connected_subchannel,
-                                  "uchannel");
-}
-
-static void cuc_set_pollset(grpc_exec_ctx *exec_ctx, grpc_call_element *elem,
-                            grpc_pollset *pollset) {
-  call_data *calld = elem->call_data;
-  calld->pollset = pollset;
-}
-
-const grpc_channel_filter grpc_client_uchannel_filter = {
-    cuc_start_transport_stream_op, cuc_start_transport_op, sizeof(call_data),
-    cuc_init_call_elem, cuc_set_pollset, cuc_destroy_call_elem,
-    sizeof(channel_data), cuc_init_channel_elem, cuc_destroy_channel_elem,
-    cuc_get_peer, "client-uchannel",
-};
-
-grpc_connectivity_state grpc_client_uchannel_check_connectivity_state(
-    grpc_exec_ctx *exec_ctx, grpc_channel_element *elem, int try_to_connect) {
-  channel_data *chand = elem->channel_data;
-  grpc_connectivity_state out;
-  gpr_mu_lock(&chand->mu_state);
-  out = grpc_connectivity_state_check(&chand->state_tracker);
-  gpr_mu_unlock(&chand->mu_state);
-  return out;
-}
-
-void grpc_client_uchannel_watch_connectivity_state(
-    grpc_exec_ctx *exec_ctx, grpc_channel_element *elem, grpc_pollset *pollset,
-    grpc_connectivity_state *state, grpc_closure *on_complete) {
-  channel_data *chand = elem->channel_data;
-  gpr_mu_lock(&chand->mu_state);
-  grpc_connectivity_state_notify_on_state_change(
-      exec_ctx, &chand->state_tracker, state, on_complete);
-  gpr_mu_unlock(&chand->mu_state);
-}
-
-grpc_channel *grpc_client_uchannel_create(grpc_subchannel *subchannel,
-                                          grpc_channel_args *args) {
-  grpc_channel *channel = NULL;
-  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
-
-  channel =
-      grpc_channel_create(&exec_ctx, NULL, args, GRPC_CLIENT_UCHANNEL, NULL);
-
-  return channel;
-}
-
-void grpc_client_uchannel_set_connected_subchannel(
-    grpc_channel *uchannel, grpc_connected_subchannel *connected_subchannel) {
-  grpc_channel_element *elem =
-      grpc_channel_stack_last_element(grpc_channel_get_channel_stack(uchannel));
-  channel_data *chand = elem->channel_data;
-  GPR_ASSERT(elem->filter == &grpc_client_uchannel_filter);
-  gpr_mu_lock(&chand->mu_state);
-  chand->connected_subchannel = connected_subchannel;
-  GRPC_CONNECTED_SUBCHANNEL_REF(connected_subchannel, "uchannel");
-  gpr_mu_unlock(&chand->mu_state);
-}
diff --git a/src/core/channel/client_uchannel.h b/src/core/channel/client_uchannel.h
deleted file mode 100644
index 8bb288e..0000000
--- a/src/core/channel/client_uchannel.h
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- *
- * Copyright 2015-2016, Google Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#ifndef GRPC_CORE_CHANNEL_CLIENT_UCHANNEL_H
-#define GRPC_CORE_CHANNEL_CLIENT_UCHANNEL_H
-
-#include "src/core/channel/channel_stack.h"
-#include "src/core/client_config/resolver.h"
-
-#define GRPC_MICROCHANNEL_SUBCHANNEL_ARG "grpc.microchannel_subchannel_key"
-
-/* A client microchannel (aka uchannel) is a channel wrapping a subchannel, for
- * the purposes of lightweight RPC communications from within the core.*/
-
-extern const grpc_channel_filter grpc_client_uchannel_filter;
-
-grpc_connectivity_state grpc_client_uchannel_check_connectivity_state(
-    grpc_exec_ctx *exec_ctx, grpc_channel_element *elem, int try_to_connect);
-
-void grpc_client_uchannel_watch_connectivity_state(
-    grpc_exec_ctx *exec_ctx, grpc_channel_element *elem, grpc_pollset *pollset,
-    grpc_connectivity_state *state, grpc_closure *on_complete);
-
-grpc_channel *grpc_client_uchannel_create(grpc_subchannel *subchannel,
-                                          grpc_channel_args *args);
-
-void grpc_client_uchannel_set_connected_subchannel(
-    grpc_channel *uchannel, grpc_connected_subchannel *connected_subchannel);
-
-#endif /* GRPC_CORE_CHANNEL_CLIENT_UCHANNEL_H */
diff --git a/src/core/httpcli/parser.c b/src/core/httpcli/parser.c
deleted file mode 100644
index c314f02..0000000
--- a/src/core/httpcli/parser.c
+++ /dev/null
@@ -1,211 +0,0 @@
-/*
- *
- * Copyright 2015, Google Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#include "src/core/httpcli/parser.h"
-
-#include <string.h>
-
-#include <grpc/support/alloc.h>
-#include <grpc/support/log.h>
-#include <grpc/support/useful.h>
-
-static int handle_response_line(grpc_httpcli_parser *parser) {
-  uint8_t *beg = parser->cur_line;
-  uint8_t *cur = beg;
-  uint8_t *end = beg + parser->cur_line_length;
-
-  if (cur == end || *cur++ != 'H') goto error;
-  if (cur == end || *cur++ != 'T') goto error;
-  if (cur == end || *cur++ != 'T') goto error;
-  if (cur == end || *cur++ != 'P') goto error;
-  if (cur == end || *cur++ != '/') goto error;
-  if (cur == end || *cur++ != '1') goto error;
-  if (cur == end || *cur++ != '.') goto error;
-  if (cur == end || *cur < '0' || *cur++ > '1') goto error;
-  if (cur == end || *cur++ != ' ') goto error;
-  if (cur == end || *cur < '1' || *cur++ > '9') goto error;
-  if (cur == end || *cur < '0' || *cur++ > '9') goto error;
-  if (cur == end || *cur < '0' || *cur++ > '9') goto error;
-  parser->r.status =
-      (cur[-3] - '0') * 100 + (cur[-2] - '0') * 10 + (cur[-1] - '0');
-  if (cur == end || *cur++ != ' ') goto error;
-
-  /* we don't really care about the status code message */
-
-  return 1;
-
-error:
-  gpr_log(GPR_ERROR, "Failed parsing response line");
-  return 0;
-}
-
-static char *buf2str(void *buffer, size_t length) {
-  char *out = gpr_malloc(length + 1);
-  memcpy(out, buffer, length);
-  out[length] = 0;
-  return out;
-}
-
-static int add_header(grpc_httpcli_parser *parser) {
-  uint8_t *beg = parser->cur_line;
-  uint8_t *cur = beg;
-  uint8_t *end = beg + parser->cur_line_length;
-  grpc_httpcli_header hdr = {NULL, NULL};
-
-  GPR_ASSERT(cur != end);
-
-  if (*cur == ' ' || *cur == '\t') {
-    gpr_log(GPR_ERROR, "Continued header lines not supported yet");
-    goto error;
-  }
-
-  while (cur != end && *cur != ':') {
-    cur++;
-  }
-  if (cur == end) {
-    gpr_log(GPR_ERROR, "Didn't find ':' in header string");
-    goto error;
-  }
-  GPR_ASSERT(cur >= beg);
-  hdr.key = buf2str(beg, (size_t)(cur - beg));
-  cur++; /* skip : */
-
-  while (cur != end && (*cur == ' ' || *cur == '\t')) {
-    cur++;
-  }
-  GPR_ASSERT(end - cur >= 2);
-  hdr.value = buf2str(cur, (size_t)(end - cur) - 2);
-
-  if (parser->r.hdr_count == parser->hdr_capacity) {
-    parser->hdr_capacity =
-        GPR_MAX(parser->hdr_capacity + 1, parser->hdr_capacity * 3 / 2);
-    parser->r.hdrs = gpr_realloc(
-        parser->r.hdrs, parser->hdr_capacity * sizeof(*parser->r.hdrs));
-  }
-  parser->r.hdrs[parser->r.hdr_count++] = hdr;
-  return 1;
-
-error:
-  gpr_free(hdr.key);
-  gpr_free(hdr.value);
-  return 0;
-}
-
-static int finish_line(grpc_httpcli_parser *parser) {
-  switch (parser->state) {
-    case GRPC_HTTPCLI_INITIAL_RESPONSE:
-      if (!handle_response_line(parser)) {
-        return 0;
-      }
-      parser->state = GRPC_HTTPCLI_HEADERS;
-      break;
-    case GRPC_HTTPCLI_HEADERS:
-      if (parser->cur_line_length == 2) {
-        parser->state = GRPC_HTTPCLI_BODY;
-        break;
-      }
-      if (!add_header(parser)) {
-        return 0;
-      }
-      break;
-    case GRPC_HTTPCLI_BODY:
-      GPR_UNREACHABLE_CODE(return 0);
-  }
-
-  parser->cur_line_length = 0;
-  return 1;
-}
-
-static int addbyte(grpc_httpcli_parser *parser, uint8_t byte) {
-  switch (parser->state) {
-    case GRPC_HTTPCLI_INITIAL_RESPONSE:
-    case GRPC_HTTPCLI_HEADERS:
-      if (parser->cur_line_length >= GRPC_HTTPCLI_MAX_HEADER_LENGTH) {
-        gpr_log(GPR_ERROR, "HTTP client max line length (%d) exceeded",
-                GRPC_HTTPCLI_MAX_HEADER_LENGTH);
-        return 0;
-      }
-      parser->cur_line[parser->cur_line_length] = byte;
-      parser->cur_line_length++;
-      if (parser->cur_line_length >= 2 &&
-          parser->cur_line[parser->cur_line_length - 2] == '\r' &&
-          parser->cur_line[parser->cur_line_length - 1] == '\n') {
-        return finish_line(parser);
-      } else {
-        return 1;
-      }
-      GPR_UNREACHABLE_CODE(return 0);
-    case GRPC_HTTPCLI_BODY:
-      if (parser->r.body_length == parser->body_capacity) {
-        parser->body_capacity = GPR_MAX(8, parser->body_capacity * 3 / 2);
-        parser->r.body =
-            gpr_realloc((void *)parser->r.body, parser->body_capacity);
-      }
-      parser->r.body[parser->r.body_length] = (char)byte;
-      parser->r.body_length++;
-      return 1;
-  }
-  GPR_UNREACHABLE_CODE(return 0);
-}
-
-void grpc_httpcli_parser_init(grpc_httpcli_parser *parser) {
-  memset(parser, 0, sizeof(*parser));
-  parser->state = GRPC_HTTPCLI_INITIAL_RESPONSE;
-  parser->r.status = 500;
-}
-
-void grpc_httpcli_parser_destroy(grpc_httpcli_parser *parser) {
-  size_t i;
-  gpr_free(parser->r.body);
-  for (i = 0; i < parser->r.hdr_count; i++) {
-    gpr_free(parser->r.hdrs[i].key);
-    gpr_free(parser->r.hdrs[i].value);
-  }
-  gpr_free(parser->r.hdrs);
-}
-
-int grpc_httpcli_parser_parse(grpc_httpcli_parser *parser, gpr_slice slice) {
-  size_t i;
-
-  for (i = 0; i < GPR_SLICE_LENGTH(slice); i++) {
-    if (!addbyte(parser, GPR_SLICE_START_PTR(slice)[i])) {
-      return 0;
-    }
-  }
-
-  return 1;
-}
-
-int grpc_httpcli_parser_eof(grpc_httpcli_parser *parser) {
-  return parser->state == GRPC_HTTPCLI_BODY;
-}
diff --git a/src/core/httpcli/parser.h b/src/core/httpcli/parser.h
deleted file mode 100644
index cd4a737..0000000
--- a/src/core/httpcli/parser.h
+++ /dev/null
@@ -1,64 +0,0 @@
-/*
- *
- * Copyright 2015-2016, Google Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#ifndef GRPC_CORE_HTTPCLI_PARSER_H
-#define GRPC_CORE_HTTPCLI_PARSER_H
-
-#include "src/core/httpcli/httpcli.h"
-#include <grpc/support/port_platform.h>
-#include <grpc/support/slice.h>
-
-typedef enum {
-  GRPC_HTTPCLI_INITIAL_RESPONSE,
-  GRPC_HTTPCLI_HEADERS,
-  GRPC_HTTPCLI_BODY
-} grpc_httpcli_parser_state;
-
-typedef struct {
-  grpc_httpcli_parser_state state;
-
-  grpc_httpcli_response r;
-  size_t body_capacity;
-  size_t hdr_capacity;
-
-  uint8_t cur_line[GRPC_HTTPCLI_MAX_HEADER_LENGTH];
-  size_t cur_line_length;
-} grpc_httpcli_parser;
-
-void grpc_httpcli_parser_init(grpc_httpcli_parser* parser);
-void grpc_httpcli_parser_destroy(grpc_httpcli_parser* parser);
-
-int grpc_httpcli_parser_parse(grpc_httpcli_parser* parser, gpr_slice slice);
-int grpc_httpcli_parser_eof(grpc_httpcli_parser* parser);
-
-#endif /* GRPC_CORE_HTTPCLI_PARSER_H */
diff --git a/src/core/iomgr/iomgr_posix.h b/src/core/iomgr/iomgr_posix.h
deleted file mode 100644
index 698fb6a..0000000
--- a/src/core/iomgr/iomgr_posix.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- *
- * Copyright 2015-2016, Google Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#ifndef GRPC_CORE_IOMGR_IOMGR_POSIX_H
-#define GRPC_CORE_IOMGR_IOMGR_POSIX_H
-
-#include "src/core/iomgr/iomgr_internal.h"
-
-#endif /* GRPC_CORE_IOMGR_IOMGR_POSIX_H */
diff --git a/src/core/iomgr/pollset_set_windows.h b/src/core/iomgr/pollset_set_windows.h
deleted file mode 100644
index 0f040fe..0000000
--- a/src/core/iomgr/pollset_set_windows.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- *
- * Copyright 2015-2016, Google Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#ifndef GRPC_CORE_IOMGR_POLLSET_SET_WINDOWS_H
-#define GRPC_CORE_IOMGR_POLLSET_SET_WINDOWS_H
-
-#include "src/core/iomgr/pollset_set.h"
-
-#endif /* GRPC_CORE_IOMGR_POLLSET_SET_WINDOWS_H */
diff --git a/src/core/census/README.md b/src/core/lib/census/README.md
similarity index 100%
rename from src/core/census/README.md
rename to src/core/lib/census/README.md
diff --git a/src/core/census/aggregation.h b/src/core/lib/census/aggregation.h
similarity index 95%
rename from src/core/census/aggregation.h
rename to src/core/lib/census/aggregation.h
index e0ef963..f353368 100644
--- a/src/core/census/aggregation.h
+++ b/src/core/lib/census/aggregation.h
@@ -33,8 +33,8 @@
 
 #include <stddef.h>
 
-#ifndef GRPC_CORE_CENSUS_AGGREGATION_H
-#define GRPC_CORE_CENSUS_AGGREGATION_H
+#ifndef GRPC_CORE_LIB_CENSUS_AGGREGATION_H
+#define GRPC_CORE_LIB_CENSUS_AGGREGATION_H
 
 /** Structure used to describe an aggregation type. */
 struct census_aggregation_ops {
@@ -63,4 +63,4 @@
   size_t (*print)(const void *aggregation, char *buffer, size_t n);
 };
 
-#endif /* GRPC_CORE_CENSUS_AGGREGATION_H */
+#endif /* GRPC_CORE_LIB_CENSUS_AGGREGATION_H */
diff --git a/src/core/census/context.c b/src/core/lib/census/context.c
similarity index 99%
rename from src/core/census/context.c
rename to src/core/lib/census/context.c
index 89b8ee0..5a118f4 100644
--- a/src/core/census/context.c
+++ b/src/core/lib/census/context.c
@@ -38,7 +38,7 @@
 #include <grpc/support/useful.h>
 #include <stdbool.h>
 #include <string.h>
-#include "src/core/support/string.h"
+#include "src/core/lib/support/string.h"
 
 // Functions in this file support the public context API, including
 // encoding/decoding as part of context propagation across RPC's. The overall
diff --git a/src/core/census/grpc_context.c b/src/core/lib/census/grpc_context.c
similarity index 94%
rename from src/core/census/grpc_context.c
rename to src/core/lib/census/grpc_context.c
index 4b61382..457c176 100644
--- a/src/core/census/grpc_context.c
+++ b/src/core/lib/census/grpc_context.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -33,8 +33,8 @@
 
 #include <grpc/census.h>
 #include <grpc/grpc.h>
-#include "src/core/surface/api_trace.h"
-#include "src/core/surface/call.h"
+#include "src/core/lib/surface/api_trace.h"
+#include "src/core/lib/surface/call.h"
 
 void grpc_census_call_set_context(grpc_call *call, census_context *context) {
   GRPC_API_TRACE("grpc_census_call_set_context(call=%p, census_context=%p)", 2,
diff --git a/src/core/census/grpc_filter.c b/src/core/lib/census/grpc_filter.c
similarity index 87%
rename from src/core/census/grpc_filter.c
rename to src/core/lib/census/grpc_filter.c
index c8aaf31..d27d789 100644
--- a/src/core/census/grpc_filter.c
+++ b/src/core/lib/census/grpc_filter.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/census/grpc_filter.h"
+#include "src/core/lib/census/grpc_filter.h"
 
 #include <stdio.h>
 #include <string.h>
@@ -42,10 +42,10 @@
 #include <grpc/support/slice.h>
 #include <grpc/support/time.h>
 
-#include "src/core/channel/channel_stack.h"
-#include "src/core/statistics/census_interface.h"
-#include "src/core/statistics/census_rpc_stats.h"
-#include "src/core/transport/static_metadata.h"
+#include "src/core/lib/channel/channel_stack.h"
+#include "src/core/lib/statistics/census_interface.h"
+#include "src/core/lib/statistics/census_rpc_stats.h"
+#include "src/core/lib/transport/static_metadata.h"
 
 typedef struct call_data {
   census_op_id op_id;
@@ -172,13 +172,27 @@
 }
 
 const grpc_channel_filter grpc_client_census_filter = {
-    client_start_transport_op, grpc_channel_next_op, sizeof(call_data),
-    client_init_call_elem, grpc_call_stack_ignore_set_pollset,
-    client_destroy_call_elem, sizeof(channel_data), init_channel_elem,
-    destroy_channel_elem, grpc_call_next_get_peer, "census-client"};
+    client_start_transport_op,
+    grpc_channel_next_op,
+    sizeof(call_data),
+    client_init_call_elem,
+    grpc_call_stack_ignore_set_pollset,
+    client_destroy_call_elem,
+    sizeof(channel_data),
+    init_channel_elem,
+    destroy_channel_elem,
+    grpc_call_next_get_peer,
+    "census-client"};
 
 const grpc_channel_filter grpc_server_census_filter = {
-    server_start_transport_op, grpc_channel_next_op, sizeof(call_data),
-    server_init_call_elem, grpc_call_stack_ignore_set_pollset,
-    server_destroy_call_elem, sizeof(channel_data), init_channel_elem,
-    destroy_channel_elem, grpc_call_next_get_peer, "census-server"};
+    server_start_transport_op,
+    grpc_channel_next_op,
+    sizeof(call_data),
+    server_init_call_elem,
+    grpc_call_stack_ignore_set_pollset,
+    server_destroy_call_elem,
+    sizeof(channel_data),
+    init_channel_elem,
+    destroy_channel_elem,
+    grpc_call_next_get_peer,
+    "census-server"};
diff --git a/src/core/census/grpc_filter.h b/src/core/lib/census/grpc_filter.h
similarity index 90%
rename from src/core/census/grpc_filter.h
rename to src/core/lib/census/grpc_filter.h
index 4699e4d..7ceafe5 100644
--- a/src/core/census/grpc_filter.h
+++ b/src/core/lib/census/grpc_filter.h
@@ -31,14 +31,14 @@
  *
  */
 
-#ifndef GRPC_CORE_CENSUS_GRPC_FILTER_H
-#define GRPC_CORE_CENSUS_GRPC_FILTER_H
+#ifndef GRPC_CORE_LIB_CENSUS_GRPC_FILTER_H
+#define GRPC_CORE_LIB_CENSUS_GRPC_FILTER_H
 
-#include "src/core/channel/channel_stack.h"
+#include "src/core/lib/channel/channel_stack.h"
 
 /* Census filters: provides tracing and stats collection functionalities. It
    needs to reside right below the surface filter in the channel stack. */
 extern const grpc_channel_filter grpc_client_census_filter;
 extern const grpc_channel_filter grpc_server_census_filter;
 
-#endif /* GRPC_CORE_CENSUS_GRPC_FILTER_H */
+#endif /* GRPC_CORE_LIB_CENSUS_GRPC_FILTER_H */
diff --git a/src/core/census/grpc_plugin.c b/src/core/lib/census/grpc_plugin.c
similarity index 89%
rename from src/core/census/grpc_plugin.c
rename to src/core/lib/census/grpc_plugin.c
index 3be2a48..12aca76 100644
--- a/src/core/census/grpc_plugin.c
+++ b/src/core/lib/census/grpc_plugin.c
@@ -31,15 +31,15 @@
  *
  */
 
-#include "src/core/census/grpc_plugin.h"
+#include "src/core/lib/census/grpc_plugin.h"
 
 #include <limits.h>
 
 #include <grpc/census.h>
 
-#include "src/core/census/grpc_filter.h"
-#include "src/core/surface/channel_init.h"
-#include "src/core/channel/channel_stack_builder.h"
+#include "src/core/lib/census/grpc_filter.h"
+#include "src/core/lib/channel/channel_stack_builder.h"
+#include "src/core/lib/surface/channel_init.h"
 
 static bool maybe_add_census_filter(grpc_channel_stack_builder *builder,
                                     void *arg_must_be_null) {
@@ -63,8 +63,6 @@
   }
   grpc_channel_init_register_stage(GRPC_CLIENT_CHANNEL, INT_MAX,
                                    maybe_add_census_filter, NULL);
-  grpc_channel_init_register_stage(GRPC_CLIENT_UCHANNEL, INT_MAX,
-                                   maybe_add_census_filter, NULL);
   grpc_channel_init_register_stage(GRPC_SERVER_CHANNEL, INT_MAX,
                                    maybe_add_census_filter, NULL);
 }
diff --git a/src/core/census/grpc_plugin.h b/src/core/lib/census/grpc_plugin.h
similarity index 92%
rename from src/core/census/grpc_plugin.h
rename to src/core/lib/census/grpc_plugin.h
index 9321c2c..33e5f0b 100644
--- a/src/core/census/grpc_plugin.h
+++ b/src/core/lib/census/grpc_plugin.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_CENSUS_GRPC_PLUGIN_H
-#define GRPC_CORE_CENSUS_GRPC_PLUGIN_H
+#ifndef GRPC_CORE_LIB_CENSUS_GRPC_PLUGIN_H
+#define GRPC_CORE_LIB_CENSUS_GRPC_PLUGIN_H
 
 void census_grpc_plugin_init(void);
 void census_grpc_plugin_destroy(void);
 
-#endif /* GRPC_CORE_CENSUS_GRPC_PLUGIN_H */
+#endif /* GRPC_CORE_LIB_CENSUS_GRPC_PLUGIN_H */
diff --git a/src/core/census/initialize.c b/src/core/lib/census/initialize.c
similarity index 100%
rename from src/core/census/initialize.c
rename to src/core/lib/census/initialize.c
diff --git a/src/core/census/mlog.c b/src/core/lib/census/mlog.c
similarity index 99%
rename from src/core/census/mlog.c
rename to src/core/lib/census/mlog.c
index a2cc46d..9d47e80 100644
--- a/src/core/census/mlog.c
+++ b/src/core/lib/census/mlog.c
@@ -88,7 +88,7 @@
 // include the name of the structure, which will be passed as the first
 // argument. E.g. cl_block_initialize() will initialize a cl_block.
 
-#include "src/core/census/mlog.h"
+#include "src/core/lib/census/mlog.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/atm.h>
 #include <grpc/support/cpu.h>
diff --git a/src/core/census/mlog.h b/src/core/lib/census/mlog.h
similarity index 96%
rename from src/core/census/mlog.h
rename to src/core/lib/census/mlog.h
index bc6eaea..7fbdeda 100644
--- a/src/core/census/mlog.h
+++ b/src/core/lib/census/mlog.h
@@ -33,8 +33,8 @@
 
 /* A very fast in-memory log, optimized for multiple writers. */
 
-#ifndef GRPC_CORE_CENSUS_MLOG_H
-#define GRPC_CORE_CENSUS_MLOG_H
+#ifndef GRPC_CORE_LIB_CENSUS_MLOG_H
+#define GRPC_CORE_LIB_CENSUS_MLOG_H
 
 #include <grpc/support/port_platform.h>
 #include <stddef.h>
@@ -92,4 +92,4 @@
    out-of-space. */
 int64_t census_log_out_of_space_count(void);
 
-#endif /* GRPC_CORE_CENSUS_MLOG_H */
+#endif /* GRPC_CORE_LIB_CENSUS_MLOG_H */
diff --git a/src/core/census/operation.c b/src/core/lib/census/operation.c
similarity index 98%
rename from src/core/census/operation.c
rename to src/core/lib/census/operation.c
index 5c58704..315f9c3 100644
--- a/src/core/census/operation.c
+++ b/src/core/lib/census/operation.c
@@ -1,5 +1,5 @@
 /*
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/src/core/census/placeholders.c b/src/core/lib/census/placeholders.c
similarity index 100%
rename from src/core/census/placeholders.c
rename to src/core/lib/census/placeholders.c
diff --git a/src/core/census/rpc_metric_id.h b/src/core/lib/census/rpc_metric_id.h
similarity index 93%
rename from src/core/census/rpc_metric_id.h
rename to src/core/lib/census/rpc_metric_id.h
index f8d8dad..aad0588 100644
--- a/src/core/census/rpc_metric_id.h
+++ b/src/core/lib/census/rpc_metric_id.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_CENSUS_RPC_METRIC_ID_H
-#define GRPC_CORE_CENSUS_RPC_METRIC_ID_H
+#ifndef GRPC_CORE_LIB_CENSUS_RPC_METRIC_ID_H
+#define GRPC_CORE_LIB_CENSUS_RPC_METRIC_ID_H
 
 /* Metric ID's used for RPC measurements. */
 /* Count of client requests sent. */
@@ -48,4 +48,4 @@
 /* Server side request latency. */
 #define CENSUS_METRIC_RPC_SERVER_LATENCY ((uint32_t)5)
 
-#endif /* GRPC_CORE_CENSUS_RPC_METRIC_ID_H */
+#endif /* GRPC_CORE_LIB_CENSUS_RPC_METRIC_ID_H */
diff --git a/src/core/census/tracing.c b/src/core/lib/census/tracing.c
similarity index 97%
rename from src/core/census/tracing.c
rename to src/core/lib/census/tracing.c
index 3b5d6da..e508996 100644
--- a/src/core/census/tracing.c
+++ b/src/core/lib/census/tracing.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/src/core/channel/channel_args.c b/src/core/lib/channel/channel_args.c
similarity index 98%
rename from src/core/channel/channel_args.c
rename to src/core/lib/channel/channel_args.c
index bae7a90..1a02f1f 100644
--- a/src/core/channel/channel_args.c
+++ b/src/core/lib/channel/channel_args.c
@@ -31,9 +31,9 @@
  *
  */
 
+#include "src/core/lib/channel/channel_args.h"
 #include <grpc/grpc.h>
-#include "src/core/channel/channel_args.h"
-#include "src/core/support/string.h"
+#include "src/core/lib/support/string.h"
 
 #include <grpc/census.h>
 #include <grpc/support/alloc.h>
diff --git a/src/core/channel/channel_args.h b/src/core/lib/channel/channel_args.h
similarity index 96%
rename from src/core/channel/channel_args.h
rename to src/core/lib/channel/channel_args.h
index e19440f..67d287e 100644
--- a/src/core/channel/channel_args.h
+++ b/src/core/lib/channel/channel_args.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_CHANNEL_CHANNEL_ARGS_H
-#define GRPC_CORE_CHANNEL_CHANNEL_ARGS_H
+#ifndef GRPC_CORE_LIB_CHANNEL_CHANNEL_ARGS_H
+#define GRPC_CORE_LIB_CHANNEL_CHANNEL_ARGS_H
 
 #include <grpc/compression.h>
 #include <grpc/grpc.h>
@@ -91,4 +91,4 @@
 int grpc_channel_args_compare(const grpc_channel_args *a,
                               const grpc_channel_args *b);
 
-#endif /* GRPC_CORE_CHANNEL_CHANNEL_ARGS_H */
+#endif /* GRPC_CORE_LIB_CHANNEL_CHANNEL_ARGS_H */
diff --git a/src/core/channel/channel_stack.c b/src/core/lib/channel/channel_stack.c
similarity index 98%
rename from src/core/channel/channel_stack.c
rename to src/core/lib/channel/channel_stack.c
index 3e61688..52283e3 100644
--- a/src/core/channel/channel_stack.c
+++ b/src/core/lib/channel/channel_stack.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/channel/channel_stack.h"
+#include "src/core/lib/channel/channel_stack.h"
 #include <grpc/support/log.h>
 
 #include <stdlib.h>
diff --git a/src/core/channel/channel_stack.h b/src/core/lib/channel/channel_stack.h
similarity index 97%
rename from src/core/channel/channel_stack.h
rename to src/core/lib/channel/channel_stack.h
index 52362f0..b29bee4 100644
--- a/src/core/channel/channel_stack.h
+++ b/src/core/lib/channel/channel_stack.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_CHANNEL_CHANNEL_STACK_H
-#define GRPC_CORE_CHANNEL_CHANNEL_STACK_H
+#ifndef GRPC_CORE_LIB_CHANNEL_CHANNEL_STACK_H
+#define GRPC_CORE_LIB_CHANNEL_CHANNEL_STACK_H
 
 /* A channel filter defines how operations on a channel are implemented.
    Channel filters are chained together to create full channels, and if those
@@ -45,8 +45,8 @@
 
 #include <grpc/grpc.h>
 #include <grpc/support/log.h>
-#include "src/core/debug/trace.h"
-#include "src/core/transport/transport.h"
+#include "src/core/lib/debug/trace.h"
+#include "src/core/lib/transport/transport.h"
 
 typedef struct grpc_channel_element grpc_channel_element;
 typedef struct grpc_call_element grpc_call_element;
@@ -257,4 +257,4 @@
 #define GRPC_CALL_LOG_OP(sev, elem, op) \
   if (grpc_trace_channel) grpc_call_log_op(sev, elem, op)
 
-#endif /* GRPC_CORE_CHANNEL_CHANNEL_STACK_H */
+#endif /* GRPC_CORE_LIB_CHANNEL_CHANNEL_STACK_H */
diff --git a/src/core/channel/channel_stack_builder.c b/src/core/lib/channel/channel_stack_builder.c
similarity index 98%
rename from src/core/channel/channel_stack_builder.c
rename to src/core/lib/channel/channel_stack_builder.c
index 80e2e39..1ce0c4e 100644
--- a/src/core/channel/channel_stack_builder.c
+++ b/src/core/lib/channel/channel_stack_builder.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/channel/channel_stack_builder.h"
+#include "src/core/lib/channel/channel_stack_builder.h"
 
 #include <string.h>
 
@@ -216,7 +216,6 @@
   // count the number of filters
   size_t num_filters = 0;
   for (filter_node *p = builder->begin.next; p != &builder->end; p = p->next) {
-    gpr_log(GPR_DEBUG, "%d: %s", num_filters, p->filter->name);
     num_filters++;
   }
 
diff --git a/src/core/channel/channel_stack_builder.h b/src/core/lib/channel/channel_stack_builder.h
similarity index 95%
rename from src/core/channel/channel_stack_builder.h
rename to src/core/lib/channel/channel_stack_builder.h
index 15f395e..8532c44 100644
--- a/src/core/channel/channel_stack_builder.h
+++ b/src/core/lib/channel/channel_stack_builder.h
@@ -31,13 +31,13 @@
  *
  */
 
-#ifndef GRPC_CORE_CHANNEL_CHANNEL_STACK_BUILDER_H
-#define GRPC_CORE_CHANNEL_CHANNEL_STACK_BUILDER_H
+#ifndef GRPC_CORE_LIB_CHANNEL_CHANNEL_STACK_BUILDER_H
+#define GRPC_CORE_LIB_CHANNEL_CHANNEL_STACK_BUILDER_H
 
 #include <stdbool.h>
 
-#include "src/core/channel/channel_args.h"
-#include "src/core/channel/channel_stack.h"
+#include "src/core/lib/channel/channel_args.h"
+#include "src/core/lib/channel/channel_stack.h"
 
 /// grpc_channel_stack_builder offers a programmatic interface to selected
 /// and order channel filters
@@ -152,4 +152,4 @@
 
 extern int grpc_trace_channel_stack_builder;
 
-#endif /* GRPC_CORE_CHANNEL_CHANNEL_STACK_BUILDER_H */
+#endif /* GRPC_CORE_LIB_CHANNEL_CHANNEL_STACK_BUILDER_H */
diff --git a/src/core/channel/client_channel.c b/src/core/lib/channel/client_channel.c
similarity index 96%
rename from src/core/channel/client_channel.c
rename to src/core/lib/channel/client_channel.c
index f021a8a..9fdf803 100644
--- a/src/core/channel/client_channel.c
+++ b/src/core/lib/channel/client_channel.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/channel/client_channel.h"
+#include "src/core/lib/channel/client_channel.h"
 
 #include <stdio.h>
 #include <string.h>
@@ -41,14 +41,14 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/useful.h>
 
-#include "src/core/channel/channel_args.h"
-#include "src/core/channel/connected_channel.h"
-#include "src/core/channel/subchannel_call_holder.h"
-#include "src/core/iomgr/iomgr.h"
-#include "src/core/profiling/timers.h"
-#include "src/core/support/string.h"
-#include "src/core/surface/channel.h"
-#include "src/core/transport/connectivity_state.h"
+#include "src/core/lib/channel/channel_args.h"
+#include "src/core/lib/channel/connected_channel.h"
+#include "src/core/lib/channel/subchannel_call_holder.h"
+#include "src/core/lib/iomgr/iomgr.h"
+#include "src/core/lib/profiling/timers.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/surface/channel.h"
+#include "src/core/lib/transport/connectivity_state.h"
 
 /* Client channel implementation */
 
@@ -431,9 +431,17 @@
 }
 
 const grpc_channel_filter grpc_client_channel_filter = {
-    cc_start_transport_stream_op, cc_start_transport_op, sizeof(call_data),
-    init_call_elem, cc_set_pollset, destroy_call_elem, sizeof(channel_data),
-    init_channel_elem, destroy_channel_elem, cc_get_peer, "client-channel",
+    cc_start_transport_stream_op,
+    cc_start_transport_op,
+    sizeof(call_data),
+    init_call_elem,
+    cc_set_pollset,
+    destroy_call_elem,
+    sizeof(channel_data),
+    init_channel_elem,
+    destroy_channel_elem,
+    cc_get_peer,
+    "client-channel",
 };
 
 void grpc_client_channel_set_resolver(grpc_exec_ctx *exec_ctx,
diff --git a/src/core/channel/client_channel.h b/src/core/lib/channel/client_channel.h
similarity index 91%
rename from src/core/channel/client_channel.h
rename to src/core/lib/channel/client_channel.h
index 422f7f8..8777796 100644
--- a/src/core/channel/client_channel.h
+++ b/src/core/lib/channel/client_channel.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_CHANNEL_CLIENT_CHANNEL_H
-#define GRPC_CORE_CHANNEL_CLIENT_CHANNEL_H
+#ifndef GRPC_CORE_LIB_CHANNEL_CLIENT_CHANNEL_H
+#define GRPC_CORE_LIB_CHANNEL_CLIENT_CHANNEL_H
 
-#include "src/core/channel/channel_stack.h"
-#include "src/core/client_config/resolver.h"
+#include "src/core/lib/channel/channel_stack.h"
+#include "src/core/lib/client_config/resolver.h"
 
 /* A client channel is a channel that begins disconnected, and can connect
    to some endpoint on demand. If that endpoint disconnects, it will be
@@ -60,4 +60,4 @@
     grpc_exec_ctx *exec_ctx, grpc_channel_element *elem, grpc_pollset *pollset,
     grpc_connectivity_state *state, grpc_closure *on_complete);
 
-#endif /* GRPC_CORE_CHANNEL_CLIENT_CHANNEL_H */
+#endif /* GRPC_CORE_LIB_CHANNEL_CLIENT_CHANNEL_H */
diff --git a/src/core/channel/compress_filter.c b/src/core/lib/channel/compress_filter.c
similarity index 94%
rename from src/core/channel/compress_filter.c
rename to src/core/lib/channel/compress_filter.c
index 3e7ca08..04bb7cc 100644
--- a/src/core/channel/compress_filter.c
+++ b/src/core/lib/channel/compress_filter.c
@@ -39,13 +39,13 @@
 #include <grpc/support/log.h>
 #include <grpc/support/slice_buffer.h>
 
-#include "src/core/channel/channel_args.h"
-#include "src/core/channel/compress_filter.h"
-#include "src/core/compression/algorithm_metadata.h"
-#include "src/core/compression/message_compress.h"
-#include "src/core/profiling/timers.h"
-#include "src/core/support/string.h"
-#include "src/core/transport/static_metadata.h"
+#include "src/core/lib/channel/channel_args.h"
+#include "src/core/lib/channel/compress_filter.h"
+#include "src/core/lib/compression/algorithm_metadata.h"
+#include "src/core/lib/compression/message_compress.h"
+#include "src/core/lib/profiling/timers.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/transport/static_metadata.h"
 
 typedef struct call_data {
   gpr_slice_buffer slices; /**< Buffers up input slices to be compressed */
@@ -291,7 +291,14 @@
                                  grpc_channel_element *elem) {}
 
 const grpc_channel_filter grpc_compress_filter = {
-    compress_start_transport_stream_op, grpc_channel_next_op, sizeof(call_data),
-    init_call_elem, grpc_call_stack_ignore_set_pollset, destroy_call_elem,
-    sizeof(channel_data), init_channel_elem, destroy_channel_elem,
-    grpc_call_next_get_peer, "compress"};
+    compress_start_transport_stream_op,
+    grpc_channel_next_op,
+    sizeof(call_data),
+    init_call_elem,
+    grpc_call_stack_ignore_set_pollset,
+    destroy_call_elem,
+    sizeof(channel_data),
+    init_channel_elem,
+    destroy_channel_elem,
+    grpc_call_next_get_peer,
+    "compress"};
diff --git a/src/core/channel/compress_filter.h b/src/core/lib/channel/compress_filter.h
similarity index 92%
rename from src/core/channel/compress_filter.h
rename to src/core/lib/channel/compress_filter.h
index 8c208ac..9010074 100644
--- a/src/core/channel/compress_filter.h
+++ b/src/core/lib/channel/compress_filter.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_CHANNEL_COMPRESS_FILTER_H
-#define GRPC_CORE_CHANNEL_COMPRESS_FILTER_H
+#ifndef GRPC_CORE_LIB_CHANNEL_COMPRESS_FILTER_H
+#define GRPC_CORE_LIB_CHANNEL_COMPRESS_FILTER_H
 
-#include "src/core/channel/channel_stack.h"
+#include "src/core/lib/channel/channel_stack.h"
 
 #define GRPC_COMPRESS_REQUEST_ALGORITHM_KEY "grpc-internal-encoding-request"
 
@@ -62,4 +62,4 @@
 
 extern const grpc_channel_filter grpc_compress_filter;
 
-#endif /* GRPC_CORE_CHANNEL_COMPRESS_FILTER_H */
+#endif /* GRPC_CORE_LIB_CHANNEL_COMPRESS_FILTER_H */
diff --git a/src/core/channel/connected_channel.c b/src/core/lib/channel/connected_channel.c
similarity index 93%
rename from src/core/channel/connected_channel.c
rename to src/core/lib/channel/connected_channel.c
index e7ed3cc..5e3a897 100644
--- a/src/core/channel/connected_channel.c
+++ b/src/core/lib/channel/connected_channel.c
@@ -31,19 +31,19 @@
  *
  */
 
-#include "src/core/channel/connected_channel.h"
+#include "src/core/lib/channel/connected_channel.h"
 
 #include <stdarg.h>
 #include <stdio.h>
 #include <string.h>
 
-#include "src/core/support/string.h"
-#include "src/core/transport/transport.h"
-#include "src/core/profiling/timers.h"
 #include <grpc/byte_buffer.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/slice_buffer.h>
+#include "src/core/lib/profiling/timers.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/transport/transport.h"
 
 #define MAX_BUFFER_LENGTH 8192
 
@@ -132,9 +132,17 @@
 }
 
 static const grpc_channel_filter connected_channel_filter = {
-    con_start_transport_stream_op, con_start_transport_op, sizeof(call_data),
-    init_call_elem, set_pollset, destroy_call_elem, sizeof(channel_data),
-    init_channel_elem, destroy_channel_elem, con_get_peer, "connected",
+    con_start_transport_stream_op,
+    con_start_transport_op,
+    sizeof(call_data),
+    init_call_elem,
+    set_pollset,
+    destroy_call_elem,
+    sizeof(channel_data),
+    init_channel_elem,
+    destroy_channel_elem,
+    con_get_peer,
+    "connected",
 };
 
 static void bind_transport(grpc_channel_stack *channel_stack,
diff --git a/src/core/channel/connected_channel.h b/src/core/lib/channel/connected_channel.h
similarity index 88%
rename from src/core/channel/connected_channel.h
rename to src/core/lib/channel/connected_channel.h
index 7c0c835..4f20b75 100644
--- a/src/core/channel/connected_channel.h
+++ b/src/core/lib/channel/connected_channel.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_CHANNEL_CONNECTED_CHANNEL_H
-#define GRPC_CORE_CHANNEL_CONNECTED_CHANNEL_H
+#ifndef GRPC_CORE_LIB_CHANNEL_CONNECTED_CHANNEL_H
+#define GRPC_CORE_LIB_CHANNEL_CONNECTED_CHANNEL_H
 
-#include "src/core/channel/channel_stack_builder.h"
+#include "src/core/lib/channel/channel_stack_builder.h"
 
 bool grpc_add_connected_filter(grpc_channel_stack_builder *builder,
                                void *arg_must_be_null);
 
-#endif /* GRPC_CORE_CHANNEL_CONNECTED_CHANNEL_H */
+#endif /* GRPC_CORE_LIB_CHANNEL_CONNECTED_CHANNEL_H */
diff --git a/src/core/channel/context.h b/src/core/lib/channel/context.h
similarity index 93%
rename from src/core/channel/context.h
rename to src/core/lib/channel/context.h
index db217dc..bca102d 100644
--- a/src/core/channel/context.h
+++ b/src/core/lib/channel/context.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_CHANNEL_CONTEXT_H
-#define GRPC_CORE_CHANNEL_CONTEXT_H
+#ifndef GRPC_CORE_LIB_CHANNEL_CONTEXT_H
+#define GRPC_CORE_LIB_CHANNEL_CONTEXT_H
 
 /* Call object context pointers */
 typedef enum {
@@ -46,4 +46,4 @@
   void (*destroy)(void *);
 } grpc_call_context_element;
 
-#endif /* GRPC_CORE_CHANNEL_CONTEXT_H */
+#endif /* GRPC_CORE_LIB_CHANNEL_CONTEXT_H */
diff --git a/src/core/channel/http_client_filter.c b/src/core/lib/channel/http_client_filter.c
similarity index 94%
rename from src/core/channel/http_client_filter.c
rename to src/core/lib/channel/http_client_filter.c
index 1aa2720..7dbac38 100644
--- a/src/core/channel/http_client_filter.c
+++ b/src/core/lib/channel/http_client_filter.c
@@ -30,14 +30,14 @@
  *
  */
 
-#include "src/core/channel/http_client_filter.h"
+#include "src/core/lib/channel/http_client_filter.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 #include <string.h>
-#include "src/core/profiling/timers.h"
-#include "src/core/support/string.h"
-#include "src/core/transport/static_metadata.h"
+#include "src/core/lib/profiling/timers.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/transport/static_metadata.h"
 
 typedef struct call_data {
   grpc_linked_mdelem method;
@@ -242,7 +242,14 @@
 }
 
 const grpc_channel_filter grpc_http_client_filter = {
-    hc_start_transport_op, grpc_channel_next_op, sizeof(call_data),
-    init_call_elem, grpc_call_stack_ignore_set_pollset, destroy_call_elem,
-    sizeof(channel_data), init_channel_elem, destroy_channel_elem,
-    grpc_call_next_get_peer, "http-client"};
+    hc_start_transport_op,
+    grpc_channel_next_op,
+    sizeof(call_data),
+    init_call_elem,
+    grpc_call_stack_ignore_set_pollset,
+    destroy_call_elem,
+    sizeof(channel_data),
+    init_channel_elem,
+    destroy_channel_elem,
+    grpc_call_next_get_peer,
+    "http-client"};
diff --git a/src/core/channel/http_client_filter.h b/src/core/lib/channel/http_client_filter.h
similarity index 89%
rename from src/core/channel/http_client_filter.h
rename to src/core/lib/channel/http_client_filter.h
index 6f619bb..418426e 100644
--- a/src/core/channel/http_client_filter.h
+++ b/src/core/lib/channel/http_client_filter.h
@@ -31,14 +31,14 @@
  *
  */
 
-#ifndef GRPC_CORE_CHANNEL_HTTP_CLIENT_FILTER_H
-#define GRPC_CORE_CHANNEL_HTTP_CLIENT_FILTER_H
+#ifndef GRPC_CORE_LIB_CHANNEL_HTTP_CLIENT_FILTER_H
+#define GRPC_CORE_LIB_CHANNEL_HTTP_CLIENT_FILTER_H
 
-#include "src/core/channel/channel_stack.h"
+#include "src/core/lib/channel/channel_stack.h"
 
 /* Processes metadata on the client side for HTTP2 transports */
 extern const grpc_channel_filter grpc_http_client_filter;
 
 #define GRPC_ARG_HTTP2_SCHEME "grpc.http2_scheme"
 
-#endif /* GRPC_CORE_CHANNEL_HTTP_CLIENT_FILTER_H */
+#endif /* GRPC_CORE_LIB_CHANNEL_HTTP_CLIENT_FILTER_H */
diff --git a/src/core/channel/http_server_filter.c b/src/core/lib/channel/http_server_filter.c
similarity index 95%
rename from src/core/channel/http_server_filter.c
rename to src/core/lib/channel/http_server_filter.c
index 370f8db..df99b77 100644
--- a/src/core/channel/http_server_filter.c
+++ b/src/core/lib/channel/http_server_filter.c
@@ -31,13 +31,13 @@
  *
  */
 
-#include "src/core/channel/http_server_filter.h"
+#include "src/core/lib/channel/http_server_filter.h"
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <string.h>
-#include "src/core/profiling/timers.h"
-#include "src/core/transport/static_metadata.h"
+#include "src/core/lib/profiling/timers.h"
+#include "src/core/lib/transport/static_metadata.h"
 
 typedef struct call_data {
   uint8_t seen_path;
@@ -227,7 +227,14 @@
                                  grpc_channel_element *elem) {}
 
 const grpc_channel_filter grpc_http_server_filter = {
-    hs_start_transport_op, grpc_channel_next_op, sizeof(call_data),
-    init_call_elem, grpc_call_stack_ignore_set_pollset, destroy_call_elem,
-    sizeof(channel_data), init_channel_elem, destroy_channel_elem,
-    grpc_call_next_get_peer, "http-server"};
+    hs_start_transport_op,
+    grpc_channel_next_op,
+    sizeof(call_data),
+    init_call_elem,
+    grpc_call_stack_ignore_set_pollset,
+    destroy_call_elem,
+    sizeof(channel_data),
+    init_channel_elem,
+    destroy_channel_elem,
+    grpc_call_next_get_peer,
+    "http-server"};
diff --git a/src/core/channel/http_server_filter.h b/src/core/lib/channel/http_server_filter.h
similarity index 89%
rename from src/core/channel/http_server_filter.h
rename to src/core/lib/channel/http_server_filter.h
index 528c864..c8cf920 100644
--- a/src/core/channel/http_server_filter.h
+++ b/src/core/lib/channel/http_server_filter.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_CHANNEL_HTTP_SERVER_FILTER_H
-#define GRPC_CORE_CHANNEL_HTTP_SERVER_FILTER_H
+#ifndef GRPC_CORE_LIB_CHANNEL_HTTP_SERVER_FILTER_H
+#define GRPC_CORE_LIB_CHANNEL_HTTP_SERVER_FILTER_H
 
-#include "src/core/channel/channel_stack.h"
+#include "src/core/lib/channel/channel_stack.h"
 
 /* Processes metadata on the client side for HTTP2 transports */
 extern const grpc_channel_filter grpc_http_server_filter;
 
-#endif /* GRPC_CORE_CHANNEL_HTTP_SERVER_FILTER_H */
+#endif /* GRPC_CORE_LIB_CHANNEL_HTTP_SERVER_FILTER_H */
diff --git a/src/core/channel/subchannel_call_holder.c b/src/core/lib/channel/subchannel_call_holder.c
similarity index 98%
rename from src/core/channel/subchannel_call_holder.c
rename to src/core/lib/channel/subchannel_call_holder.c
index 9c087dc..6c6d42d 100644
--- a/src/core/channel/subchannel_call_holder.c
+++ b/src/core/lib/channel/subchannel_call_holder.c
@@ -31,11 +31,11 @@
  *
  */
 
-#include "src/core/channel/subchannel_call_holder.h"
+#include "src/core/lib/channel/subchannel_call_holder.h"
 
 #include <grpc/support/alloc.h>
 
-#include "src/core/profiling/timers.h"
+#include "src/core/lib/profiling/timers.h"
 
 #define GET_CALL(holder) \
   ((grpc_subchannel_call *)(gpr_atm_acq_load(&(holder)->subchannel_call)))
diff --git a/src/core/channel/subchannel_call_holder.h b/src/core/lib/channel/subchannel_call_holder.h
similarity index 91%
rename from src/core/channel/subchannel_call_holder.h
rename to src/core/lib/channel/subchannel_call_holder.h
index 9086cdc..882f366 100644
--- a/src/core/channel/subchannel_call_holder.h
+++ b/src/core/lib/channel/subchannel_call_holder.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_CHANNEL_SUBCHANNEL_CALL_HOLDER_H
-#define GRPC_CORE_CHANNEL_SUBCHANNEL_CALL_HOLDER_H
+#ifndef GRPC_CORE_LIB_CHANNEL_SUBCHANNEL_CALL_HOLDER_H
+#define GRPC_CORE_LIB_CHANNEL_SUBCHANNEL_CALL_HOLDER_H
 
-#include "src/core/client_config/subchannel.h"
+#include "src/core/lib/client_config/subchannel.h"
 
 /** Pick a subchannel for grpc_subchannel_call_holder;
     Return 1 if subchannel is available immediately (in which case on_ready
@@ -55,15 +55,14 @@
     for initial metadata before trying to create a call object,
     and handling cancellation gracefully.
 
-    Both the channel and uchannel filter use this as their call_data. */
+    The channel filter uses this as their call_data. */
 typedef struct grpc_subchannel_call_holder {
   /** either 0 for no call, 1 for cancelled, or a pointer to a
       grpc_subchannel_call */
   gpr_atm subchannel_call;
   /** Helper function to choose the subchannel on which to create
       the call object. Channel filter delegates to the load
-      balancing policy (once it's ready); uchannel returns
-      immediately */
+      balancing policy (once it's ready). */
   grpc_subchannel_call_holder_pick_subchannel pick_subchannel;
   void *pick_subchannel_arg;
 
@@ -95,4 +94,4 @@
 char *grpc_subchannel_call_holder_get_peer(grpc_exec_ctx *exec_ctx,
                                            grpc_subchannel_call_holder *holder);
 
-#endif /* GRPC_CORE_CHANNEL_SUBCHANNEL_CALL_HOLDER_H */
+#endif /* GRPC_CORE_LIB_CHANNEL_SUBCHANNEL_CALL_HOLDER_H */
diff --git a/src/core/client_config/README.md b/src/core/lib/client_config/README.md
similarity index 100%
rename from src/core/client_config/README.md
rename to src/core/lib/client_config/README.md
diff --git a/src/core/client_config/client_config.c b/src/core/lib/client_config/client_config.c
similarity index 97%
rename from src/core/client_config/client_config.c
rename to src/core/lib/client_config/client_config.c
index c500af2..82c8d68 100644
--- a/src/core/client_config/client_config.c
+++ b/src/core/lib/client_config/client_config.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/client_config/client_config.h"
+#include "src/core/lib/client_config/client_config.h"
 
 #include <string.h>
 
diff --git a/src/core/client_config/client_config.h b/src/core/lib/client_config/client_config.h
similarity index 90%
rename from src/core/client_config/client_config.h
rename to src/core/lib/client_config/client_config.h
index 9b37fdc..404ec0d 100644
--- a/src/core/client_config/client_config.h
+++ b/src/core/lib/client_config/client_config.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_CLIENT_CONFIG_CLIENT_CONFIG_H
-#define GRPC_CORE_CLIENT_CONFIG_CLIENT_CONFIG_H
+#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_CLIENT_CONFIG_H
+#define GRPC_CORE_LIB_CLIENT_CONFIG_CLIENT_CONFIG_H
 
-#include "src/core/client_config/lb_policy.h"
+#include "src/core/lib/client_config/lb_policy.h"
 
 /** Total configuration for a client. Provided, and updated, by
     grpc_resolver */
@@ -50,4 +50,4 @@
 grpc_lb_policy *grpc_client_config_get_lb_policy(
     grpc_client_config *client_config);
 
-#endif /* GRPC_CORE_CLIENT_CONFIG_CLIENT_CONFIG_H */
+#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_CLIENT_CONFIG_H */
diff --git a/src/core/client_config/connector.c b/src/core/lib/client_config/connector.c
similarity index 97%
rename from src/core/client_config/connector.c
rename to src/core/lib/client_config/connector.c
index aa34aa7..f51d862 100644
--- a/src/core/client_config/connector.c
+++ b/src/core/lib/client_config/connector.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/client_config/connector.h"
+#include "src/core/lib/client_config/connector.h"
 
 grpc_connector* grpc_connector_ref(grpc_connector* connector) {
   connector->vtable->ref(connector);
diff --git a/src/core/client_config/connector.h b/src/core/lib/client_config/connector.h
similarity index 92%
rename from src/core/client_config/connector.h
rename to src/core/lib/client_config/connector.h
index 93248fc..21b925a 100644
--- a/src/core/client_config/connector.h
+++ b/src/core/lib/client_config/connector.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_CLIENT_CONFIG_CONNECTOR_H
-#define GRPC_CORE_CLIENT_CONFIG_CONNECTOR_H
+#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_CONNECTOR_H
+#define GRPC_CORE_LIB_CLIENT_CONFIG_CONNECTOR_H
 
-#include "src/core/channel/channel_stack.h"
-#include "src/core/iomgr/sockaddr.h"
-#include "src/core/transport/transport.h"
+#include "src/core/lib/channel/channel_stack.h"
+#include "src/core/lib/iomgr/sockaddr.h"
+#include "src/core/lib/transport/transport.h"
 
 typedef struct grpc_connector grpc_connector;
 typedef struct grpc_connector_vtable grpc_connector_vtable;
@@ -89,4 +89,4 @@
 void grpc_connector_shutdown(grpc_exec_ctx *exec_ctx,
                              grpc_connector *connector);
 
-#endif /* GRPC_CORE_CLIENT_CONFIG_CONNECTOR_H */
+#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_CONNECTOR_H */
diff --git a/src/core/client_config/default_initial_connect_string.c b/src/core/lib/client_config/default_initial_connect_string.c
similarity index 95%
rename from src/core/client_config/default_initial_connect_string.c
rename to src/core/lib/client_config/default_initial_connect_string.c
index 6a4e23e..86eb37d 100644
--- a/src/core/client_config/default_initial_connect_string.c
+++ b/src/core/lib/client_config/default_initial_connect_string.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -32,7 +32,7 @@
  */
 
 #include <grpc/support/slice.h>
-#include "src/core/iomgr/sockaddr.h"
+#include "src/core/lib/iomgr/sockaddr.h"
 
 void grpc_set_default_initial_connect_string(struct sockaddr **addr,
                                              size_t *addr_len,
diff --git a/src/core/client_config/initial_connect_string.c b/src/core/lib/client_config/initial_connect_string.c
similarity index 95%
rename from src/core/client_config/initial_connect_string.c
rename to src/core/lib/client_config/initial_connect_string.c
index 19afa16..95ae728 100644
--- a/src/core/client_config/initial_connect_string.c
+++ b/src/core/lib/client_config/initial_connect_string.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/client_config/initial_connect_string.h"
+#include "src/core/lib/client_config/initial_connect_string.h"
 
 #include <stddef.h>
 
diff --git a/src/core/client_config/initial_connect_string.h b/src/core/lib/client_config/initial_connect_string.h
similarity index 90%
rename from src/core/client_config/initial_connect_string.h
rename to src/core/lib/client_config/initial_connect_string.h
index e6d2d8f..eec42fa 100644
--- a/src/core/client_config/initial_connect_string.h
+++ b/src/core/lib/client_config/initial_connect_string.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_CLIENT_CONFIG_INITIAL_CONNECT_STRING_H
-#define GRPC_CORE_CLIENT_CONFIG_INITIAL_CONNECT_STRING_H
+#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_INITIAL_CONNECT_STRING_H
+#define GRPC_CORE_LIB_CLIENT_CONFIG_INITIAL_CONNECT_STRING_H
 
 #include <grpc/support/slice.h>
-#include "src/core/iomgr/sockaddr.h"
+#include "src/core/lib/iomgr/sockaddr.h"
 
 typedef void (*grpc_set_initial_connect_string_func)(struct sockaddr **addr,
                                                      size_t *addr_len,
@@ -47,4 +47,4 @@
 void grpc_set_initial_connect_string(struct sockaddr **addr, size_t *addr_len,
                                      gpr_slice *connect_string);
 
-#endif /* GRPC_CORE_CLIENT_CONFIG_INITIAL_CONNECT_STRING_H */
+#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_INITIAL_CONNECT_STRING_H */
diff --git a/src/core/client_config/lb_policies/load_balancer_api.c b/src/core/lib/client_config/lb_policies/load_balancer_api.c
similarity index 98%
rename from src/core/client_config/lb_policies/load_balancer_api.c
rename to src/core/lib/client_config/lb_policies/load_balancer_api.c
index a6b5785..4cbed20 100644
--- a/src/core/client_config/lb_policies/load_balancer_api.c
+++ b/src/core/lib/client_config/lb_policies/load_balancer_api.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/client_config/lb_policies/load_balancer_api.h"
+#include "src/core/lib/client_config/lb_policies/load_balancer_api.h"
 #include "third_party/nanopb/pb_decode.h"
 #include "third_party/nanopb/pb_encode.h"
 
diff --git a/src/core/client_config/lb_policies/load_balancer_api.h b/src/core/lib/client_config/lb_policies/load_balancer_api.h
similarity index 90%
rename from src/core/client_config/lb_policies/load_balancer_api.h
rename to src/core/lib/client_config/lb_policies/load_balancer_api.h
index b7a4c9c..83299ad 100644
--- a/src/core/client_config/lb_policies/load_balancer_api.h
+++ b/src/core/lib/client_config/lb_policies/load_balancer_api.h
@@ -31,13 +31,13 @@
  *
  */
 
-#ifndef GRPC_CORE_CLIENT_CONFIG_LB_POLICIES_LOAD_BALANCER_API_H
-#define GRPC_CORE_CLIENT_CONFIG_LB_POLICIES_LOAD_BALANCER_API_H
+#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICIES_LOAD_BALANCER_API_H
+#define GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICIES_LOAD_BALANCER_API_H
 
 #include <grpc/support/slice_buffer.h>
 
-#include "src/core/client_config/lb_policy_factory.h"
-#include "src/core/proto/grpc/lb/v0/load_balancer.pb.h"
+#include "src/core/lib/client_config/lb_policy_factory.h"
+#include "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -82,4 +82,4 @@
 }
 #endif
 
-#endif /* GRPC_CORE_CLIENT_CONFIG_LB_POLICIES_LOAD_BALANCER_API_H */
+#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICIES_LOAD_BALANCER_API_H */
diff --git a/src/core/client_config/lb_policies/pick_first.c b/src/core/lib/client_config/lb_policies/pick_first.c
similarity index 97%
rename from src/core/client_config/lb_policies/pick_first.c
rename to src/core/lib/client_config/lb_policies/pick_first.c
index 8ed1223..2e399b7 100644
--- a/src/core/client_config/lb_policies/pick_first.c
+++ b/src/core/lib/client_config/lb_policies/pick_first.c
@@ -31,13 +31,13 @@
  *
  */
 
-#include "src/core/client_config/lb_policies/pick_first.h"
-#include "src/core/client_config/lb_policy_factory.h"
+#include "src/core/lib/client_config/lb_policies/pick_first.h"
+#include "src/core/lib/client_config/lb_policy_factory.h"
 
 #include <string.h>
 
 #include <grpc/support/alloc.h>
-#include "src/core/transport/connectivity_state.h"
+#include "src/core/lib/transport/connectivity_state.h"
 
 typedef struct pending_pick {
   struct pending_pick *next;
@@ -378,8 +378,14 @@
 }
 
 static const grpc_lb_policy_vtable pick_first_lb_policy_vtable = {
-    pf_destroy, pf_shutdown, pf_pick, pf_cancel_pick, pf_ping_one, pf_exit_idle,
-    pf_check_connectivity, pf_notify_on_state_change};
+    pf_destroy,
+    pf_shutdown,
+    pf_pick,
+    pf_cancel_pick,
+    pf_ping_one,
+    pf_exit_idle,
+    pf_check_connectivity,
+    pf_notify_on_state_change};
 
 static void pick_first_factory_ref(grpc_lb_policy_factory *factory) {}
 
diff --git a/src/core/client_config/lb_policies/pick_first.h b/src/core/lib/client_config/lb_policies/pick_first.h
similarity index 87%
rename from src/core/client_config/lb_policies/pick_first.h
rename to src/core/lib/client_config/lb_policies/pick_first.h
index 3a3f195..dba86ea 100644
--- a/src/core/client_config/lb_policies/pick_first.h
+++ b/src/core/lib/client_config/lb_policies/pick_first.h
@@ -31,13 +31,13 @@
  *
  */
 
-#ifndef GRPC_CORE_CLIENT_CONFIG_LB_POLICIES_PICK_FIRST_H
-#define GRPC_CORE_CLIENT_CONFIG_LB_POLICIES_PICK_FIRST_H
+#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICIES_PICK_FIRST_H
+#define GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICIES_PICK_FIRST_H
 
-#include "src/core/client_config/lb_policy_factory.h"
+#include "src/core/lib/client_config/lb_policy_factory.h"
 
 /** Returns a load balancing factory for the pick first policy, which picks up
  * the first subchannel from \a subchannels to succesfully connect */
 grpc_lb_policy_factory *grpc_pick_first_lb_factory_create();
 
-#endif /* GRPC_CORE_CLIENT_CONFIG_LB_POLICIES_PICK_FIRST_H */
+#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICIES_PICK_FIRST_H */
diff --git a/src/core/client_config/lb_policies/round_robin.c b/src/core/lib/client_config/lb_policies/round_robin.c
similarity index 98%
rename from src/core/client_config/lb_policies/round_robin.c
rename to src/core/lib/client_config/lb_policies/round_robin.c
index 98d9acc..c904c5f 100644
--- a/src/core/client_config/lb_policies/round_robin.c
+++ b/src/core/lib/client_config/lb_policies/round_robin.c
@@ -31,12 +31,12 @@
  *
  */
 
-#include "src/core/client_config/lb_policies/round_robin.h"
+#include "src/core/lib/client_config/lb_policies/round_robin.h"
 
 #include <string.h>
 
 #include <grpc/support/alloc.h>
-#include "src/core/transport/connectivity_state.h"
+#include "src/core/lib/transport/connectivity_state.h"
 
 typedef struct round_robin_lb_policy round_robin_lb_policy;
 
@@ -483,8 +483,14 @@
 }
 
 static const grpc_lb_policy_vtable round_robin_lb_policy_vtable = {
-    rr_destroy, rr_shutdown, rr_pick, rr_cancel_pick, rr_ping_one, rr_exit_idle,
-    rr_check_connectivity, rr_notify_on_state_change};
+    rr_destroy,
+    rr_shutdown,
+    rr_pick,
+    rr_cancel_pick,
+    rr_ping_one,
+    rr_exit_idle,
+    rr_check_connectivity,
+    rr_notify_on_state_change};
 
 static void round_robin_factory_ref(grpc_lb_policy_factory *factory) {}
 
diff --git a/src/core/client_config/lb_policies/round_robin.h b/src/core/lib/client_config/lb_policies/round_robin.h
similarity index 85%
rename from src/core/client_config/lb_policies/round_robin.h
rename to src/core/lib/client_config/lb_policies/round_robin.h
index 7e6f176..52db1ca 100644
--- a/src/core/client_config/lb_policies/round_robin.h
+++ b/src/core/lib/client_config/lb_policies/round_robin.h
@@ -31,16 +31,16 @@
  *
  */
 
-#ifndef GRPC_CORE_CLIENT_CONFIG_LB_POLICIES_ROUND_ROBIN_H
-#define GRPC_CORE_CLIENT_CONFIG_LB_POLICIES_ROUND_ROBIN_H
+#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICIES_ROUND_ROBIN_H
+#define GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICIES_ROUND_ROBIN_H
 
-#include "src/core/client_config/lb_policy.h"
+#include "src/core/lib/client_config/lb_policy.h"
 
 extern int grpc_lb_round_robin_trace;
 
-#include "src/core/client_config/lb_policy_factory.h"
+#include "src/core/lib/client_config/lb_policy_factory.h"
 
 /** Returns a load balancing factory for the round robin policy */
 grpc_lb_policy_factory *grpc_round_robin_lb_factory_create();
 
-#endif /* GRPC_CORE_CLIENT_CONFIG_LB_POLICIES_ROUND_ROBIN_H */
+#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICIES_ROUND_ROBIN_H */
diff --git a/src/core/client_config/lb_policy.c b/src/core/lib/client_config/lb_policy.c
similarity index 98%
rename from src/core/client_config/lb_policy.c
rename to src/core/lib/client_config/lb_policy.c
index 0d8b007..ee20ccd 100644
--- a/src/core/client_config/lb_policy.c
+++ b/src/core/lib/client_config/lb_policy.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/client_config/lb_policy.h"
+#include "src/core/lib/client_config/lb_policy.h"
 
 #define WEAK_REF_BITS 16
 
diff --git a/src/core/client_config/lb_policy.h b/src/core/lib/client_config/lb_policy.h
similarity index 96%
rename from src/core/client_config/lb_policy.h
rename to src/core/lib/client_config/lb_policy.h
index ffebc2a..58a0a04 100644
--- a/src/core/client_config/lb_policy.h
+++ b/src/core/lib/client_config/lb_policy.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_CLIENT_CONFIG_LB_POLICY_H
-#define GRPC_CORE_CLIENT_CONFIG_LB_POLICY_H
+#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_H
+#define GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_H
 
-#include "src/core/client_config/subchannel.h"
-#include "src/core/transport/connectivity_state.h"
+#include "src/core/lib/client_config/subchannel.h"
+#include "src/core/lib/transport/connectivity_state.h"
 
 /** A load balancing policy: specified by a vtable and a struct (which
     is expected to be extended to contain some parameters) */
@@ -141,4 +141,4 @@
 grpc_connectivity_state grpc_lb_policy_check_connectivity(
     grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy);
 
-#endif /* GRPC_CORE_CLIENT_CONFIG_LB_POLICY_H */
+#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_H */
diff --git a/src/core/client_config/lb_policy_factory.c b/src/core/lib/client_config/lb_policy_factory.c
similarity index 95%
rename from src/core/client_config/lb_policy_factory.c
rename to src/core/lib/client_config/lb_policy_factory.c
index e49de54..2ca6f42 100644
--- a/src/core/client_config/lb_policy_factory.c
+++ b/src/core/lib/client_config/lb_policy_factory.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/client_config/lb_policy_factory.h"
+#include "src/core/lib/client_config/lb_policy_factory.h"
 
 void grpc_lb_policy_factory_ref(grpc_lb_policy_factory* factory) {
   factory->vtable->ref(factory);
diff --git a/src/core/client_config/lb_policy_factory.h b/src/core/lib/client_config/lb_policy_factory.h
similarity index 90%
rename from src/core/client_config/lb_policy_factory.h
rename to src/core/lib/client_config/lb_policy_factory.h
index 842ba96..36eaf17 100644
--- a/src/core/client_config/lb_policy_factory.h
+++ b/src/core/lib/client_config/lb_policy_factory.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_CLIENT_CONFIG_LB_POLICY_FACTORY_H
-#define GRPC_CORE_CLIENT_CONFIG_LB_POLICY_FACTORY_H
+#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_FACTORY_H
+#define GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_FACTORY_H
 
-#include "src/core/client_config/lb_policy.h"
-#include "src/core/client_config/subchannel.h"
+#include "src/core/lib/client_config/lb_policy.h"
+#include "src/core/lib/client_config/subchannel.h"
 
 typedef struct grpc_lb_policy_factory grpc_lb_policy_factory;
 typedef struct grpc_lb_policy_factory_vtable grpc_lb_policy_factory_vtable;
@@ -70,4 +70,4 @@
 grpc_lb_policy *grpc_lb_policy_factory_create_lb_policy(
     grpc_lb_policy_factory *factory, grpc_lb_policy_args *args);
 
-#endif /* GRPC_CORE_CLIENT_CONFIG_LB_POLICY_FACTORY_H */
+#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_FACTORY_H */
diff --git a/src/core/client_config/lb_policy_registry.c b/src/core/lib/client_config/lb_policy_registry.c
similarity index 96%
rename from src/core/client_config/lb_policy_registry.c
rename to src/core/lib/client_config/lb_policy_registry.c
index fc302e8..13acfe7 100644
--- a/src/core/client_config/lb_policy_registry.c
+++ b/src/core/lib/client_config/lb_policy_registry.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/client_config/lb_policy_registry.h"
+#include "src/core/lib/client_config/lb_policy_registry.h"
 
 #include <string.h>
 
diff --git a/src/core/client_config/lb_policy_registry.h b/src/core/lib/client_config/lb_policy_registry.h
similarity index 90%
rename from src/core/client_config/lb_policy_registry.h
rename to src/core/lib/client_config/lb_policy_registry.h
index f3a08a3..c251fd9 100644
--- a/src/core/client_config/lb_policy_registry.h
+++ b/src/core/lib/client_config/lb_policy_registry.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_CLIENT_CONFIG_LB_POLICY_REGISTRY_H
-#define GRPC_CORE_CLIENT_CONFIG_LB_POLICY_REGISTRY_H
+#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_REGISTRY_H
+#define GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_REGISTRY_H
 
-#include "src/core/client_config/lb_policy_factory.h"
+#include "src/core/lib/client_config/lb_policy_factory.h"
 
 /** Initialize the registry and set \a default_factory as the factory to be
  * returned when no name is provided in a lookup */
@@ -51,4 +51,4 @@
 grpc_lb_policy *grpc_lb_policy_create(const char *name,
                                       grpc_lb_policy_args *args);
 
-#endif /* GRPC_CORE_CLIENT_CONFIG_LB_POLICY_REGISTRY_H */
+#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_LB_POLICY_REGISTRY_H */
diff --git a/src/core/client_config/resolver.c b/src/core/lib/client_config/resolver.c
similarity index 97%
rename from src/core/client_config/resolver.c
rename to src/core/lib/client_config/resolver.c
index eda01e7..32f0643 100644
--- a/src/core/client_config/resolver.c
+++ b/src/core/lib/client_config/resolver.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/client_config/resolver.h"
+#include "src/core/lib/client_config/resolver.h"
 
 void grpc_resolver_init(grpc_resolver *resolver,
                         const grpc_resolver_vtable *vtable) {
diff --git a/src/core/client_config/resolver.h b/src/core/lib/client_config/resolver.h
similarity index 92%
rename from src/core/client_config/resolver.h
rename to src/core/lib/client_config/resolver.h
index 96f88fe..1ee8792 100644
--- a/src/core/client_config/resolver.h
+++ b/src/core/lib/client_config/resolver.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_CLIENT_CONFIG_RESOLVER_H
-#define GRPC_CORE_CLIENT_CONFIG_RESOLVER_H
+#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_H
+#define GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_H
 
-#include "src/core/client_config/client_config.h"
-#include "src/core/client_config/subchannel.h"
-#include "src/core/iomgr/iomgr.h"
+#include "src/core/lib/client_config/client_config.h"
+#include "src/core/lib/client_config/subchannel.h"
+#include "src/core/lib/iomgr/iomgr.h"
 
 typedef struct grpc_resolver grpc_resolver;
 typedef struct grpc_resolver_vtable grpc_resolver_vtable;
@@ -91,4 +91,4 @@
                         grpc_client_config **target_config,
                         grpc_closure *on_complete);
 
-#endif /* GRPC_CORE_CLIENT_CONFIG_RESOLVER_H */
+#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_H */
diff --git a/src/core/client_config/resolver_factory.c b/src/core/lib/client_config/resolver_factory.c
similarity index 95%
rename from src/core/client_config/resolver_factory.c
rename to src/core/lib/client_config/resolver_factory.c
index e7e9196..0f76c66 100644
--- a/src/core/client_config/resolver_factory.c
+++ b/src/core/lib/client_config/resolver_factory.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/client_config/resolver_factory.h"
+#include "src/core/lib/client_config/resolver_factory.h"
 
 void grpc_resolver_factory_ref(grpc_resolver_factory* factory) {
   factory->vtable->ref(factory);
diff --git a/src/core/client_config/resolver_factory.h b/src/core/lib/client_config/resolver_factory.h
similarity index 90%
rename from src/core/client_config/resolver_factory.h
rename to src/core/lib/client_config/resolver_factory.h
index 477f8db..7765c3c 100644
--- a/src/core/client_config/resolver_factory.h
+++ b/src/core/lib/client_config/resolver_factory.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_CLIENT_CONFIG_RESOLVER_FACTORY_H
-#define GRPC_CORE_CLIENT_CONFIG_RESOLVER_FACTORY_H
+#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_FACTORY_H
+#define GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_FACTORY_H
 
-#include "src/core/client_config/resolver.h"
-#include "src/core/client_config/subchannel_factory.h"
-#include "src/core/client_config/uri_parser.h"
+#include "src/core/lib/client_config/resolver.h"
+#include "src/core/lib/client_config/subchannel_factory.h"
+#include "src/core/lib/client_config/uri_parser.h"
 
 typedef struct grpc_resolver_factory grpc_resolver_factory;
 typedef struct grpc_resolver_factory_vtable grpc_resolver_factory_vtable;
@@ -79,4 +79,4 @@
 char *grpc_resolver_factory_get_default_authority(
     grpc_resolver_factory *factory, grpc_uri *uri);
 
-#endif /* GRPC_CORE_CLIENT_CONFIG_RESOLVER_FACTORY_H */
+#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_FACTORY_H */
diff --git a/src/core/client_config/resolver_registry.c b/src/core/lib/client_config/resolver_registry.c
similarity index 97%
rename from src/core/client_config/resolver_registry.c
rename to src/core/lib/client_config/resolver_registry.c
index 89a945c..29bd00c 100644
--- a/src/core/client_config/resolver_registry.c
+++ b/src/core/lib/client_config/resolver_registry.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/client_config/resolver_registry.h"
+#include "src/core/lib/client_config/resolver_registry.h"
 
 #include <string.h>
 
diff --git a/src/core/client_config/resolver_registry.h b/src/core/lib/client_config/resolver_registry.h
similarity index 92%
rename from src/core/client_config/resolver_registry.h
rename to src/core/lib/client_config/resolver_registry.h
index 1e4cebe..22289ca 100644
--- a/src/core/client_config/resolver_registry.h
+++ b/src/core/lib/client_config/resolver_registry.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_CLIENT_CONFIG_RESOLVER_REGISTRY_H
-#define GRPC_CORE_CLIENT_CONFIG_RESOLVER_REGISTRY_H
+#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_REGISTRY_H
+#define GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_REGISTRY_H
 
-#include "src/core/client_config/resolver_factory.h"
+#include "src/core/lib/client_config/resolver_factory.h"
 
 void grpc_resolver_registry_init(const char *default_prefix);
 void grpc_resolver_registry_shutdown(void);
@@ -62,4 +62,4 @@
     representing the default authority to pass from a client. */
 char *grpc_get_default_authority(const char *target);
 
-#endif /* GRPC_CORE_CLIENT_CONFIG_RESOLVER_REGISTRY_H */
+#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVER_REGISTRY_H */
diff --git a/src/core/client_config/resolvers/dns_resolver.c b/src/core/lib/client_config/resolvers/dns_resolver.c
similarity index 89%
rename from src/core/client_config/resolvers/dns_resolver.c
rename to src/core/lib/client_config/resolvers/dns_resolver.c
index e28e475..ab44573 100644
--- a/src/core/client_config/resolvers/dns_resolver.c
+++ b/src/core/lib/client_config/resolvers/dns_resolver.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/client_config/resolvers/dns_resolver.h"
+#include "src/core/lib/client_config/resolvers/dns_resolver.h"
 
 #include <string.h>
 
@@ -39,10 +39,16 @@
 #include <grpc/support/host_port.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/client_config/lb_policy_registry.h"
-#include "src/core/iomgr/resolve_address.h"
-#include "src/core/iomgr/timer.h"
-#include "src/core/support/string.h"
+#include "src/core/lib/client_config/lb_policy_registry.h"
+#include "src/core/lib/iomgr/resolve_address.h"
+#include "src/core/lib/iomgr/timer.h"
+#include "src/core/lib/support/backoff.h"
+#include "src/core/lib/support/string.h"
+
+#define BACKOFF_MULTIPLIER 1.6
+#define BACKOFF_JITTER 0.2
+#define BACKOFF_MIN_SECONDS 1
+#define BACKOFF_MAX_SECONDS 120
 
 typedef struct {
   /** base class: must be first */
@@ -75,6 +81,8 @@
   /** retry timer */
   bool have_retry_timer;
   grpc_timer retry_timer;
+  /** retry backoff state */
+  gpr_backoff backoff_state;
 } dns_resolver;
 
 static void dns_destroy(grpc_exec_ctx *exec_ctx, grpc_resolver *r);
@@ -111,6 +119,7 @@
   dns_resolver *r = (dns_resolver *)resolver;
   gpr_mu_lock(&r->mu);
   if (!r->resolving) {
+    gpr_backoff_reset(&r->backoff_state);
     dns_start_resolving_locked(r);
   }
   gpr_mu_unlock(&r->mu);
@@ -125,6 +134,7 @@
   r->next_completion = on_complete;
   r->target_config = target_config;
   if (r->resolved_version == 0 && !r->resolving) {
+    gpr_backoff_reset(&r->backoff_state);
     dns_start_resolving_locked(r);
   } else {
     dns_maybe_finish_next_locked(exec_ctx, r);
@@ -185,17 +195,16 @@
     grpc_resolved_addresses_destroy(addresses);
     gpr_free(subchannels);
   } else {
-    int retry_seconds = 15;
-    gpr_log(GPR_DEBUG, "dns resolution failed: retrying in %d seconds",
-            retry_seconds);
+    gpr_timespec now = gpr_now(GPR_CLOCK_MONOTONIC);
+    gpr_timespec next_try = gpr_backoff_step(&r->backoff_state, now);
+    gpr_timespec timeout = gpr_time_sub(next_try, now);
+    gpr_log(GPR_DEBUG, "dns resolution failed: retrying in %d.%09d seconds",
+            timeout.tv_sec, timeout.tv_nsec);
     GPR_ASSERT(!r->have_retry_timer);
     r->have_retry_timer = true;
-    gpr_timespec now = gpr_now(GPR_CLOCK_MONOTONIC);
     GRPC_RESOLVER_REF(&r->base, "retry-timer");
-    grpc_timer_init(
-        exec_ctx, &r->retry_timer,
-        gpr_time_add(now, gpr_time_from_seconds(retry_seconds, GPR_TIMESPAN)),
-        dns_on_retry_timer, r, now);
+    grpc_timer_init(exec_ctx, &r->retry_timer, next_try, dns_on_retry_timer, r,
+                    now);
   }
   if (r->resolved_config) {
     grpc_client_config_unref(exec_ctx, r->resolved_config);
@@ -263,6 +272,8 @@
   r->name = gpr_strdup(path);
   r->default_port = gpr_strdup(default_port);
   r->subchannel_factory = args->subchannel_factory;
+  gpr_backoff_init(&r->backoff_state, BACKOFF_MULTIPLIER, BACKOFF_JITTER,
+                   BACKOFF_MIN_SECONDS * 1000, BACKOFF_MAX_SECONDS * 1000);
   grpc_subchannel_factory_ref(r->subchannel_factory);
   r->lb_policy_name = gpr_strdup(lb_policy_name);
   return &r->base;
diff --git a/src/core/client_config/resolvers/dns_resolver.h b/src/core/lib/client_config/resolvers/dns_resolver.h
similarity index 87%
rename from src/core/client_config/resolvers/dns_resolver.h
rename to src/core/lib/client_config/resolvers/dns_resolver.h
index b24280b..eb46e41 100644
--- a/src/core/client_config/resolvers/dns_resolver.h
+++ b/src/core/lib/client_config/resolvers/dns_resolver.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_CLIENT_CONFIG_RESOLVERS_DNS_RESOLVER_H
-#define GRPC_CORE_CLIENT_CONFIG_RESOLVERS_DNS_RESOLVER_H
+#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVERS_DNS_RESOLVER_H
+#define GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVERS_DNS_RESOLVER_H
 
-#include "src/core/client_config/resolver_factory.h"
+#include "src/core/lib/client_config/resolver_factory.h"
 
 /** Create a dns resolver factory */
 grpc_resolver_factory *grpc_dns_resolver_factory_create(void);
 
-#endif /* GRPC_CORE_CLIENT_CONFIG_RESOLVERS_DNS_RESOLVER_H */
+#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVERS_DNS_RESOLVER_H */
diff --git a/src/core/client_config/resolvers/sockaddr_resolver.c b/src/core/lib/client_config/resolvers/sockaddr_resolver.c
similarity index 91%
rename from src/core/client_config/resolvers/sockaddr_resolver.c
rename to src/core/lib/client_config/resolvers/sockaddr_resolver.c
index 68910ad..66cddc3 100644
--- a/src/core/client_config/resolvers/sockaddr_resolver.c
+++ b/src/core/lib/client_config/resolvers/sockaddr_resolver.c
@@ -33,21 +33,19 @@
 
 #include <grpc/support/port_platform.h>
 
-#include "src/core/client_config/resolvers/sockaddr_resolver.h"
+#include "src/core/lib/client_config/resolvers/sockaddr_resolver.h"
 
 #include <stdio.h>
 #include <string.h>
-#ifdef GPR_POSIX_SOCKET
-#include <sys/un.h>
-#endif
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/host_port.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/client_config/lb_policy_registry.h"
-#include "src/core/iomgr/resolve_address.h"
-#include "src/core/support/string.h"
+#include "src/core/lib/client_config/lb_policy_registry.h"
+#include "src/core/lib/iomgr/resolve_address.h"
+#include "src/core/lib/iomgr/unix_sockets_posix.h"
+#include "src/core/lib/support/string.h"
 
 typedef struct {
   /** base class: must be first */
@@ -168,24 +166,6 @@
   gpr_free(r);
 }
 
-#ifdef GPR_POSIX_SOCKET
-static int parse_unix(grpc_uri *uri, struct sockaddr_storage *addr,
-                      size_t *len) {
-  struct sockaddr_un *un = (struct sockaddr_un *)addr;
-
-  un->sun_family = AF_UNIX;
-  strcpy(un->sun_path, uri->path);
-  *len = strlen(un->sun_path) + sizeof(un->sun_family) + 1;
-
-  return 1;
-}
-
-static char *unix_get_default_authority(grpc_resolver_factory *factory,
-                                        grpc_uri *uri) {
-  return gpr_strdup("localhost");
-}
-#endif
-
 static char *ip_get_default_authority(grpc_uri *uri) {
   const char *path = uri->path;
   if (path[0] == '/') ++path;
@@ -371,21 +351,22 @@
 
 static void sockaddr_factory_unref(grpc_resolver_factory *factory) {}
 
-#define DECL_FACTORY(name)                                                  \
+#define DECL_FACTORY(name, prefix)                                          \
   static grpc_resolver *name##_factory_create_resolver(                     \
       grpc_resolver_factory *factory, grpc_resolver_args *args) {           \
-    return sockaddr_create(args, "pick_first", parse_##name);               \
+    return sockaddr_create(args, "pick_first", prefix##parse_##name);       \
   }                                                                         \
   static const grpc_resolver_factory_vtable name##_factory_vtable = {       \
       sockaddr_factory_ref, sockaddr_factory_unref,                         \
-      name##_factory_create_resolver, name##_get_default_authority, #name}; \
+      name##_factory_create_resolver, prefix##name##_get_default_authority, \
+      #name};                                                               \
   static grpc_resolver_factory name##_resolver_factory = {                  \
       &name##_factory_vtable};                                              \
   grpc_resolver_factory *grpc_##name##_resolver_factory_create() {          \
     return &name##_resolver_factory;                                        \
   }
 
-#ifdef GPR_POSIX_SOCKET
-DECL_FACTORY(unix)
+#ifdef GPR_HAVE_UNIX_SOCKET
+DECL_FACTORY(unix, grpc_)
 #endif
-DECL_FACTORY(ipv4) DECL_FACTORY(ipv6)
+DECL_FACTORY(ipv4, ) DECL_FACTORY(ipv6, )
diff --git a/src/core/client_config/resolvers/sockaddr_resolver.h b/src/core/lib/client_config/resolvers/sockaddr_resolver.h
similarity index 87%
rename from src/core/client_config/resolvers/sockaddr_resolver.h
rename to src/core/lib/client_config/resolvers/sockaddr_resolver.h
index f050329..45c55bd 100644
--- a/src/core/client_config/resolvers/sockaddr_resolver.h
+++ b/src/core/lib/client_config/resolvers/sockaddr_resolver.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_CLIENT_CONFIG_RESOLVERS_SOCKADDR_RESOLVER_H
-#define GRPC_CORE_CLIENT_CONFIG_RESOLVERS_SOCKADDR_RESOLVER_H
+#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVERS_SOCKADDR_RESOLVER_H
+#define GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVERS_SOCKADDR_RESOLVER_H
 
 #include <grpc/support/port_platform.h>
 
-#include "src/core/client_config/resolver_factory.h"
+#include "src/core/lib/client_config/resolver_factory.h"
 
 grpc_resolver_factory *grpc_ipv4_resolver_factory_create(void);
 
@@ -47,4 +47,4 @@
 grpc_resolver_factory *grpc_unix_resolver_factory_create(void);
 #endif
 
-#endif /* GRPC_CORE_CLIENT_CONFIG_RESOLVERS_SOCKADDR_RESOLVER_H */
+#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVERS_SOCKADDR_RESOLVER_H */
diff --git a/src/core/client_config/resolvers/zookeeper_resolver.c b/src/core/lib/client_config/resolvers/zookeeper_resolver.c
similarity index 97%
rename from src/core/client_config/resolvers/zookeeper_resolver.c
rename to src/core/lib/client_config/resolvers/zookeeper_resolver.c
index 166738e..3bb0bbd 100644
--- a/src/core/client_config/resolvers/zookeeper_resolver.c
+++ b/src/core/lib/client_config/resolvers/zookeeper_resolver.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/client_config/resolvers/zookeeper_resolver.h"
+#include "src/core/lib/client_config/resolvers/zookeeper_resolver.h"
 
 #include <string.h>
 
@@ -41,12 +41,12 @@
 #include <grpc/grpc_zookeeper.h>
 #include <zookeeper/zookeeper.h>
 
-#include "src/core/client_config/lb_policy_registry.h"
-#include "src/core/client_config/resolver_registry.h"
-#include "src/core/iomgr/resolve_address.h"
-#include "src/core/support/string.h"
-#include "src/core/surface/api_trace.h"
-#include "src/core/json/json.h"
+#include "src/core/lib/client_config/lb_policy_registry.h"
+#include "src/core/lib/client_config/resolver_registry.h"
+#include "src/core/lib/iomgr/resolve_address.h"
+#include "src/core/lib/json/json.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/surface/api_trace.h"
 
 /** Zookeeper session expiration time in milliseconds */
 #define GRPC_ZOOKEEPER_SESSION_TIMEOUT 15000
diff --git a/src/core/client_config/resolvers/zookeeper_resolver.h b/src/core/lib/client_config/resolvers/zookeeper_resolver.h
similarity index 86%
rename from src/core/client_config/resolvers/zookeeper_resolver.h
rename to src/core/lib/client_config/resolvers/zookeeper_resolver.h
index 04bd3ca..7ee7604 100644
--- a/src/core/client_config/resolvers/zookeeper_resolver.h
+++ b/src/core/lib/client_config/resolvers/zookeeper_resolver.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_CLIENT_CONFIG_RESOLVERS_ZOOKEEPER_RESOLVER_H
-#define GRPC_CORE_CLIENT_CONFIG_RESOLVERS_ZOOKEEPER_RESOLVER_H
+#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVERS_ZOOKEEPER_RESOLVER_H
+#define GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVERS_ZOOKEEPER_RESOLVER_H
 
-#include "src/core/client_config/resolver_factory.h"
+#include "src/core/lib/client_config/resolver_factory.h"
 
 /** Create a zookeeper resolver factory */
 grpc_resolver_factory *grpc_zookeeper_resolver_factory_create(void);
 
-#endif /* GRPC_CORE_CLIENT_CONFIG_RESOLVERS_ZOOKEEPER_RESOLVER_H */
+#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_RESOLVERS_ZOOKEEPER_RESOLVER_H */
diff --git a/src/core/client_config/subchannel.c b/src/core/lib/client_config/subchannel.c
similarity index 95%
rename from src/core/client_config/subchannel.c
rename to src/core/lib/client_config/subchannel.c
index 8f150a8..41242f0 100644
--- a/src/core/client_config/subchannel.c
+++ b/src/core/lib/client_config/subchannel.c
@@ -31,24 +31,24 @@
  *
  */
 
-#include "src/core/client_config/subchannel.h"
+#include "src/core/lib/client_config/subchannel.h"
 
 #include <string.h>
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/avl.h>
 
-#include "src/core/channel/channel_args.h"
-#include "src/core/channel/client_channel.h"
-#include "src/core/channel/connected_channel.h"
-#include "src/core/client_config/initial_connect_string.h"
-#include "src/core/client_config/subchannel_index.h"
-#include "src/core/iomgr/timer.h"
-#include "src/core/profiling/timers.h"
-#include "src/core/support/backoff.h"
-#include "src/core/surface/channel.h"
-#include "src/core/surface/channel_init.h"
-#include "src/core/transport/connectivity_state.h"
+#include "src/core/lib/channel/channel_args.h"
+#include "src/core/lib/channel/client_channel.h"
+#include "src/core/lib/channel/connected_channel.h"
+#include "src/core/lib/client_config/initial_connect_string.h"
+#include "src/core/lib/client_config/subchannel_index.h"
+#include "src/core/lib/iomgr/timer.h"
+#include "src/core/lib/profiling/timers.h"
+#include "src/core/lib/support/backoff.h"
+#include "src/core/lib/surface/channel.h"
+#include "src/core/lib/surface/channel_init.h"
+#include "src/core/lib/transport/connectivity_state.h"
 
 #define INTERNAL_REF_BITS 16
 #define STRONG_REF_MASK (~(gpr_atm)((1 << INTERNAL_REF_BITS) - 1))
@@ -185,8 +185,8 @@
   gpr_free(c);
 }
 
-void grpc_connected_subchannel_ref(grpc_connected_subchannel *c
-                                       GRPC_SUBCHANNEL_REF_EXTRA_ARGS) {
+void grpc_connected_subchannel_ref(
+    grpc_connected_subchannel *c GRPC_SUBCHANNEL_REF_EXTRA_ARGS) {
   GRPC_CHANNEL_STACK_REF(CHANNEL_STACK_FROM_CONNECTION(c), REF_REASON);
 }
 
@@ -227,8 +227,8 @@
   return old_val;
 }
 
-grpc_subchannel *grpc_subchannel_ref(grpc_subchannel *c
-                                         GRPC_SUBCHANNEL_REF_EXTRA_ARGS) {
+grpc_subchannel *grpc_subchannel_ref(
+    grpc_subchannel *c GRPC_SUBCHANNEL_REF_EXTRA_ARGS) {
   gpr_atm old_refs;
   old_refs = ref_mutate(c, (1 << INTERNAL_REF_BITS),
                         0 REF_MUTATE_PURPOSE("STRONG_REF"));
@@ -236,8 +236,8 @@
   return c;
 }
 
-grpc_subchannel *grpc_subchannel_weak_ref(grpc_subchannel *c
-                                              GRPC_SUBCHANNEL_REF_EXTRA_ARGS) {
+grpc_subchannel *grpc_subchannel_weak_ref(
+    grpc_subchannel *c GRPC_SUBCHANNEL_REF_EXTRA_ARGS) {
   gpr_atm old_refs;
   old_refs = ref_mutate(c, 1, 0 REF_MUTATE_PURPOSE("WEAK_REF"));
   GPR_ASSERT(old_refs != 0);
@@ -626,8 +626,8 @@
   GPR_TIMER_END("grpc_subchannel_call_unref.destroy", 0);
 }
 
-void grpc_subchannel_call_ref(grpc_subchannel_call *c
-                                  GRPC_SUBCHANNEL_REF_EXTRA_ARGS) {
+void grpc_subchannel_call_ref(
+    grpc_subchannel_call *c GRPC_SUBCHANNEL_REF_EXTRA_ARGS) {
   GRPC_CALL_STACK_REF(SUBCHANNEL_CALL_TO_CALL_STACK(c), REF_REASON);
 }
 
diff --git a/src/core/client_config/subchannel.h b/src/core/lib/client_config/subchannel.h
similarity index 89%
rename from src/core/client_config/subchannel.h
rename to src/core/lib/client_config/subchannel.h
index ef9f2f1..b4f545b 100644
--- a/src/core/client_config/subchannel.h
+++ b/src/core/lib/client_config/subchannel.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_CLIENT_CONFIG_SUBCHANNEL_H
-#define GRPC_CORE_CLIENT_CONFIG_SUBCHANNEL_H
+#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_H
+#define GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_H
 
-#include "src/core/channel/channel_stack.h"
-#include "src/core/client_config/connector.h"
-#include "src/core/transport/connectivity_state.h"
+#include "src/core/lib/channel/channel_stack.h"
+#include "src/core/lib/client_config/connector.h"
+#include "src/core/lib/transport/connectivity_state.h"
 
 /** A (sub-)channel that knows how to connect to exactly one target
     address. Provides a target for load balancing. */
@@ -83,25 +83,25 @@
 #define GRPC_SUBCHANNEL_REF_EXTRA_ARGS
 #endif
 
-grpc_subchannel *grpc_subchannel_ref(grpc_subchannel *channel
-                                         GRPC_SUBCHANNEL_REF_EXTRA_ARGS);
+grpc_subchannel *grpc_subchannel_ref(
+    grpc_subchannel *channel GRPC_SUBCHANNEL_REF_EXTRA_ARGS);
 grpc_subchannel *grpc_subchannel_ref_from_weak_ref(
     grpc_subchannel *channel GRPC_SUBCHANNEL_REF_EXTRA_ARGS);
 void grpc_subchannel_unref(grpc_exec_ctx *exec_ctx,
                            grpc_subchannel *channel
                                GRPC_SUBCHANNEL_REF_EXTRA_ARGS);
-grpc_subchannel *grpc_subchannel_weak_ref(grpc_subchannel *channel
-                                              GRPC_SUBCHANNEL_REF_EXTRA_ARGS);
+grpc_subchannel *grpc_subchannel_weak_ref(
+    grpc_subchannel *channel GRPC_SUBCHANNEL_REF_EXTRA_ARGS);
 void grpc_subchannel_weak_unref(grpc_exec_ctx *exec_ctx,
                                 grpc_subchannel *channel
                                     GRPC_SUBCHANNEL_REF_EXTRA_ARGS);
-void grpc_connected_subchannel_ref(grpc_connected_subchannel *channel
-                                       GRPC_SUBCHANNEL_REF_EXTRA_ARGS);
+void grpc_connected_subchannel_ref(
+    grpc_connected_subchannel *channel GRPC_SUBCHANNEL_REF_EXTRA_ARGS);
 void grpc_connected_subchannel_unref(grpc_exec_ctx *exec_ctx,
                                      grpc_connected_subchannel *channel
                                          GRPC_SUBCHANNEL_REF_EXTRA_ARGS);
-void grpc_subchannel_call_ref(grpc_subchannel_call *call
-                                  GRPC_SUBCHANNEL_REF_EXTRA_ARGS);
+void grpc_subchannel_call_ref(
+    grpc_subchannel_call *call GRPC_SUBCHANNEL_REF_EXTRA_ARGS);
 void grpc_subchannel_call_unref(grpc_exec_ctx *exec_ctx,
                                 grpc_subchannel_call *call
                                     GRPC_SUBCHANNEL_REF_EXTRA_ARGS);
@@ -171,4 +171,4 @@
                                         grpc_connector *connector,
                                         grpc_subchannel_args *args);
 
-#endif /* GRPC_CORE_CLIENT_CONFIG_SUBCHANNEL_H */
+#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_H */
diff --git a/src/core/client_config/subchannel_factory.c b/src/core/lib/client_config/subchannel_factory.c
similarity index 95%
rename from src/core/client_config/subchannel_factory.c
rename to src/core/lib/client_config/subchannel_factory.c
index 2c64219..727a48a 100644
--- a/src/core/client_config/subchannel_factory.c
+++ b/src/core/lib/client_config/subchannel_factory.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/client_config/subchannel_factory.h"
+#include "src/core/lib/client_config/subchannel_factory.h"
 
 void grpc_subchannel_factory_ref(grpc_subchannel_factory* factory) {
   factory->vtable->ref(factory);
diff --git a/src/core/client_config/subchannel_factory.h b/src/core/lib/client_config/subchannel_factory.h
similarity index 90%
rename from src/core/client_config/subchannel_factory.h
rename to src/core/lib/client_config/subchannel_factory.h
index c638f37..3ba2f86 100644
--- a/src/core/client_config/subchannel_factory.h
+++ b/src/core/lib/client_config/subchannel_factory.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_CLIENT_CONFIG_SUBCHANNEL_FACTORY_H
-#define GRPC_CORE_CLIENT_CONFIG_SUBCHANNEL_FACTORY_H
+#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_FACTORY_H
+#define GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_FACTORY_H
 
-#include "src/core/channel/channel_stack.h"
-#include "src/core/client_config/subchannel.h"
+#include "src/core/lib/channel/channel_stack.h"
+#include "src/core/lib/client_config/subchannel.h"
 
 typedef struct grpc_subchannel_factory grpc_subchannel_factory;
 typedef struct grpc_subchannel_factory_vtable grpc_subchannel_factory_vtable;
@@ -63,4 +63,4 @@
     grpc_exec_ctx *exec_ctx, grpc_subchannel_factory *factory,
     grpc_subchannel_args *args);
 
-#endif /* GRPC_CORE_CLIENT_CONFIG_SUBCHANNEL_FACTORY_H */
+#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_FACTORY_H */
diff --git a/src/core/client_config/subchannel_index.c b/src/core/lib/client_config/subchannel_index.c
similarity index 98%
rename from src/core/client_config/subchannel_index.c
rename to src/core/lib/client_config/subchannel_index.c
index 24cc76c..2c54500 100644
--- a/src/core/client_config/subchannel_index.c
+++ b/src/core/lib/client_config/subchannel_index.c
@@ -31,7 +31,7 @@
 //
 //
 
-#include "src/core/client_config/subchannel_index.h"
+#include "src/core/lib/client_config/subchannel_index.h"
 
 #include <stdbool.h>
 #include <string.h>
@@ -40,7 +40,7 @@
 #include <grpc/support/avl.h>
 #include <grpc/support/tls.h>
 
-#include "src/core/channel/channel_args.h"
+#include "src/core/lib/channel/channel_args.h"
 
 // a map of subchannel_key --> subchannel, used for detecting connections
 // to the same destination in order to share them
diff --git a/src/core/client_config/subchannel_index.h b/src/core/lib/client_config/subchannel_index.h
similarity index 92%
rename from src/core/client_config/subchannel_index.h
rename to src/core/lib/client_config/subchannel_index.h
index 3cd5d12..bc5f03b 100644
--- a/src/core/client_config/subchannel_index.h
+++ b/src/core/lib/client_config/subchannel_index.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_CLIENT_CONFIG_SUBCHANNEL_INDEX_H
-#define GRPC_CORE_CLIENT_CONFIG_SUBCHANNEL_INDEX_H
+#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_INDEX_H
+#define GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_INDEX_H
 
-#include "src/core/client_config/connector.h"
-#include "src/core/client_config/subchannel.h"
+#include "src/core/lib/client_config/connector.h"
+#include "src/core/lib/client_config/subchannel.h"
 
 /** \file Provides an index of active subchannels so that they can be
     shared amongst channels */
@@ -74,4 +74,4 @@
 /** Shutdown the subchannel index (global) */
 void grpc_subchannel_index_shutdown(void);
 
-#endif /* GRPC_CORE_CLIENT_CONFIG_SUBCHANNEL_INDEX_H */
+#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_SUBCHANNEL_INDEX_H */
diff --git a/src/core/client_config/uri_parser.c b/src/core/lib/client_config/uri_parser.c
similarity index 98%
rename from src/core/client_config/uri_parser.c
rename to src/core/lib/client_config/uri_parser.c
index cbdfffc..d3228de 100644
--- a/src/core/client_config/uri_parser.c
+++ b/src/core/lib/client_config/uri_parser.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/client_config/uri_parser.h"
+#include "src/core/lib/client_config/uri_parser.h"
 
 #include <string.h>
 
diff --git a/src/core/client_config/uri_parser.h b/src/core/lib/client_config/uri_parser.h
similarity index 92%
rename from src/core/client_config/uri_parser.h
rename to src/core/lib/client_config/uri_parser.h
index af013d8..d70d451 100644
--- a/src/core/client_config/uri_parser.h
+++ b/src/core/lib/client_config/uri_parser.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_CLIENT_CONFIG_URI_PARSER_H
-#define GRPC_CORE_CLIENT_CONFIG_URI_PARSER_H
+#ifndef GRPC_CORE_LIB_CLIENT_CONFIG_URI_PARSER_H
+#define GRPC_CORE_LIB_CLIENT_CONFIG_URI_PARSER_H
 
 typedef struct {
   char *scheme;
@@ -48,4 +48,4 @@
 /** destroy a uri */
 void grpc_uri_destroy(grpc_uri *uri);
 
-#endif /* GRPC_CORE_CLIENT_CONFIG_URI_PARSER_H */
+#endif /* GRPC_CORE_LIB_CLIENT_CONFIG_URI_PARSER_H */
diff --git a/src/core/compression/algorithm_metadata.h b/src/core/lib/compression/algorithm_metadata.h
similarity index 90%
rename from src/core/compression/algorithm_metadata.h
rename to src/core/lib/compression/algorithm_metadata.h
index 34abf1d..47f33ab 100644
--- a/src/core/compression/algorithm_metadata.h
+++ b/src/core/lib/compression/algorithm_metadata.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_COMPRESSION_ALGORITHM_METADATA_H
-#define GRPC_CORE_COMPRESSION_ALGORITHM_METADATA_H
+#ifndef GRPC_CORE_LIB_COMPRESSION_ALGORITHM_METADATA_H
+#define GRPC_CORE_LIB_COMPRESSION_ALGORITHM_METADATA_H
 
 #include <grpc/compression.h>
-#include "src/core/transport/metadata.h"
+#include "src/core/lib/transport/metadata.h"
 
 /** Return compression algorithm based metadata value */
 grpc_mdstr *grpc_compression_algorithm_mdstr(
@@ -50,4 +50,4 @@
 grpc_compression_algorithm grpc_compression_algorithm_from_mdstr(
     grpc_mdstr *str);
 
-#endif /* GRPC_CORE_COMPRESSION_ALGORITHM_METADATA_H */
+#endif /* GRPC_CORE_LIB_COMPRESSION_ALGORITHM_METADATA_H */
diff --git a/src/core/compression/compression_algorithm.c b/src/core/lib/compression/compression_algorithm.c
similarity index 97%
rename from src/core/compression/compression_algorithm.c
rename to src/core/lib/compression/compression_algorithm.c
index 2810a38..f781b45 100644
--- a/src/core/compression/compression_algorithm.c
+++ b/src/core/lib/compression/compression_algorithm.c
@@ -37,9 +37,9 @@
 #include <grpc/compression.h>
 #include <grpc/support/useful.h>
 
-#include "src/core/compression/algorithm_metadata.h"
-#include "src/core/surface/api_trace.h"
-#include "src/core/transport/static_metadata.h"
+#include "src/core/lib/compression/algorithm_metadata.h"
+#include "src/core/lib/surface/api_trace.h"
+#include "src/core/lib/transport/static_metadata.h"
 
 int grpc_compression_algorithm_parse(const char *name, size_t name_length,
                                      grpc_compression_algorithm *algorithm) {
diff --git a/src/core/compression/message_compress.c b/src/core/lib/compression/message_compress.c
similarity index 98%
rename from src/core/compression/message_compress.c
rename to src/core/lib/compression/message_compress.c
index edc21a9..b4b6a2d 100644
--- a/src/core/compression/message_compress.c
+++ b/src/core/lib/compression/message_compress.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/compression/message_compress.h"
+#include "src/core/lib/compression/message_compress.h"
 
 #include <string.h>
 
diff --git a/src/core/compression/message_compress.h b/src/core/lib/compression/message_compress.h
similarity index 93%
rename from src/core/compression/message_compress.h
rename to src/core/lib/compression/message_compress.h
index 20b78c0..b716081 100644
--- a/src/core/compression/message_compress.h
+++ b/src/core/lib/compression/message_compress.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_COMPRESSION_MESSAGE_COMPRESS_H
-#define GRPC_CORE_COMPRESSION_MESSAGE_COMPRESS_H
+#ifndef GRPC_CORE_LIB_COMPRESSION_MESSAGE_COMPRESS_H
+#define GRPC_CORE_LIB_COMPRESSION_MESSAGE_COMPRESS_H
 
 #include <grpc/compression.h>
 #include <grpc/support/slice_buffer.h>
@@ -49,4 +49,4 @@
 int grpc_msg_decompress(grpc_compression_algorithm algorithm,
                         gpr_slice_buffer* input, gpr_slice_buffer* output);
 
-#endif /* GRPC_CORE_COMPRESSION_MESSAGE_COMPRESS_H */
+#endif /* GRPC_CORE_LIB_COMPRESSION_MESSAGE_COMPRESS_H */
diff --git a/src/core/debug/trace.c b/src/core/lib/debug/trace.c
similarity index 96%
rename from src/core/debug/trace.c
rename to src/core/lib/debug/trace.c
index 3b35d81..786dd93 100644
--- a/src/core/debug/trace.c
+++ b/src/core/lib/debug/trace.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,14 +31,14 @@
  *
  */
 
-#include "src/core/debug/trace.h"
+#include "src/core/lib/debug/trace.h"
 
 #include <string.h>
 
 #include <grpc/grpc.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include "src/core/support/env.h"
+#include "src/core/lib/support/env.h"
 
 typedef struct tracer {
   const char *name;
diff --git a/src/core/debug/trace.h b/src/core/lib/debug/trace.h
similarity index 93%
rename from src/core/debug/trace.h
rename to src/core/lib/debug/trace.h
index 91ec140..76ea5a7 100644
--- a/src/core/debug/trace.h
+++ b/src/core/lib/debug/trace.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_DEBUG_TRACE_H
-#define GRPC_CORE_DEBUG_TRACE_H
+#ifndef GRPC_CORE_LIB_DEBUG_TRACE_H
+#define GRPC_CORE_LIB_DEBUG_TRACE_H
 
 #include <grpc/support/port_platform.h>
 
@@ -40,4 +40,4 @@
 void grpc_tracer_init(const char *env_var_name);
 void grpc_tracer_shutdown(void);
 
-#endif /* GRPC_CORE_DEBUG_TRACE_H */
+#endif /* GRPC_CORE_LIB_DEBUG_TRACE_H */
diff --git a/src/core/httpcli/format_request.c b/src/core/lib/http/format_request.c
similarity index 88%
rename from src/core/httpcli/format_request.c
rename to src/core/lib/http/format_request.c
index 04f2a2d..95b3918 100644
--- a/src/core/httpcli/format_request.c
+++ b/src/core/lib/http/format_request.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,22 +31,22 @@
  *
  */
 
-#include "src/core/httpcli/format_request.h"
+#include "src/core/lib/http/format_request.h"
 
 #include <stdarg.h>
 #include <stdio.h>
 #include <string.h>
 
-#include "src/core/support/string.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/slice.h>
 #include <grpc/support/string_util.h>
 #include <grpc/support/useful.h>
+#include "src/core/lib/support/string.h"
 
 static void fill_common_header(const grpc_httpcli_request *request,
                                gpr_strvec *buf) {
   size_t i;
-  gpr_strvec_add(buf, gpr_strdup(request->path));
+  gpr_strvec_add(buf, gpr_strdup(request->http.path));
   gpr_strvec_add(buf, gpr_strdup(" HTTP/1.0\r\n"));
   /* just in case some crazy server really expects HTTP/1.1 */
   gpr_strvec_add(buf, gpr_strdup("Host: "));
@@ -56,10 +56,10 @@
   gpr_strvec_add(buf,
                  gpr_strdup("User-Agent: " GRPC_HTTPCLI_USER_AGENT "\r\n"));
   /* user supplied headers */
-  for (i = 0; i < request->hdr_count; i++) {
-    gpr_strvec_add(buf, gpr_strdup(request->hdrs[i].key));
+  for (i = 0; i < request->http.hdr_count; i++) {
+    gpr_strvec_add(buf, gpr_strdup(request->http.hdrs[i].key));
     gpr_strvec_add(buf, gpr_strdup(": "));
-    gpr_strvec_add(buf, gpr_strdup(request->hdrs[i].value));
+    gpr_strvec_add(buf, gpr_strdup(request->http.hdrs[i].value));
     gpr_strvec_add(buf, gpr_strdup("\r\n"));
   }
 }
@@ -94,8 +94,8 @@
   fill_common_header(request, &out);
   if (body_bytes) {
     uint8_t has_content_type = 0;
-    for (i = 0; i < request->hdr_count; i++) {
-      if (strcmp(request->hdrs[i].key, "Content-Type") == 0) {
+    for (i = 0; i < request->http.hdr_count; i++) {
+      if (strcmp(request->http.hdrs[i].key, "Content-Type") == 0) {
         has_content_type = 1;
         break;
       }
diff --git a/src/core/httpcli/format_request.h b/src/core/lib/http/format_request.h
similarity index 91%
rename from src/core/httpcli/format_request.h
rename to src/core/lib/http/format_request.h
index eb47cc9..2e933d8 100644
--- a/src/core/httpcli/format_request.h
+++ b/src/core/lib/http/format_request.h
@@ -31,15 +31,15 @@
  *
  */
 
-#ifndef GRPC_CORE_HTTPCLI_FORMAT_REQUEST_H
-#define GRPC_CORE_HTTPCLI_FORMAT_REQUEST_H
+#ifndef GRPC_CORE_LIB_HTTP_FORMAT_REQUEST_H
+#define GRPC_CORE_LIB_HTTP_FORMAT_REQUEST_H
 
-#include "src/core/httpcli/httpcli.h"
 #include <grpc/support/slice.h>
+#include "src/core/lib/http/httpcli.h"
 
 gpr_slice grpc_httpcli_format_get_request(const grpc_httpcli_request *request);
 gpr_slice grpc_httpcli_format_post_request(const grpc_httpcli_request *request,
                                            const char *body_bytes,
                                            size_t body_size);
 
-#endif /* GRPC_CORE_HTTPCLI_FORMAT_REQUEST_H */
+#endif /* GRPC_CORE_LIB_HTTP_FORMAT_REQUEST_H */
diff --git a/src/core/httpcli/httpcli.c b/src/core/lib/http/httpcli.c
similarity index 90%
rename from src/core/httpcli/httpcli.c
rename to src/core/lib/http/httpcli.c
index 1219c44..aab28ad 100644
--- a/src/core/httpcli/httpcli.c
+++ b/src/core/lib/http/httpcli.c
@@ -31,8 +31,8 @@
  *
  */
 
-#include "src/core/httpcli/httpcli.h"
-#include "src/core/iomgr/sockaddr.h"
+#include "src/core/lib/http/httpcli.h"
+#include "src/core/lib/iomgr/sockaddr.h"
 
 #include <string.h>
 
@@ -40,17 +40,17 @@
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/httpcli/format_request.h"
-#include "src/core/httpcli/parser.h"
-#include "src/core/iomgr/endpoint.h"
-#include "src/core/iomgr/iomgr_internal.h"
-#include "src/core/iomgr/resolve_address.h"
-#include "src/core/iomgr/tcp_client.h"
-#include "src/core/support/string.h"
+#include "src/core/lib/http/format_request.h"
+#include "src/core/lib/http/parser.h"
+#include "src/core/lib/iomgr/endpoint.h"
+#include "src/core/lib/iomgr/iomgr_internal.h"
+#include "src/core/lib/iomgr/resolve_address.h"
+#include "src/core/lib/iomgr/tcp_client.h"
+#include "src/core/lib/support/string.h"
 
 typedef struct {
   gpr_slice request_text;
-  grpc_httpcli_parser parser;
+  grpc_http_parser parser;
   grpc_resolved_addresses *addresses;
   size_t next_address;
   grpc_endpoint *ep;
@@ -99,8 +99,9 @@
                    int success) {
   grpc_pollset_set_del_pollset(exec_ctx, req->context->pollset_set,
                                req->pollset);
-  req->on_response(exec_ctx, req->user_data, success ? &req->parser.r : NULL);
-  grpc_httpcli_parser_destroy(&req->parser);
+  req->on_response(exec_ctx, req->user_data,
+                   success ? &req->parser.http.response : NULL);
+  grpc_http_parser_destroy(&req->parser);
   if (req->addresses != NULL) {
     grpc_resolved_addresses_destroy(req->addresses);
   }
@@ -129,7 +130,7 @@
   for (i = 0; i < req->incoming.count; i++) {
     if (GPR_SLICE_LENGTH(req->incoming.slices[i])) {
       req->have_read_byte = 1;
-      if (!grpc_httpcli_parser_parse(&req->parser, req->incoming.slices[i])) {
+      if (!grpc_http_parser_parse(&req->parser, req->incoming.slices[i])) {
         finish(exec_ctx, req, 0);
         return;
       }
@@ -141,7 +142,11 @@
   } else if (!req->have_read_byte) {
     next_address(exec_ctx, req);
   } else {
-    finish(exec_ctx, req, grpc_httpcli_parser_eof(&req->parser));
+    int parse_success = grpc_http_parser_eof(&req->parser);
+    if (parse_success && (req->parser.type != GRPC_HTTP_RESPONSE)) {
+      parse_success = 0;
+    }
+    finish(exec_ctx, req, parse_success);
   }
 }
 
@@ -223,7 +228,7 @@
   internal_request *req = gpr_malloc(sizeof(internal_request));
   memset(req, 0, sizeof(*req));
   req->request_text = request_text;
-  grpc_httpcli_parser_init(&req->parser);
+  grpc_http_parser_init(&req->parser);
   req->on_response = on_response;
   req->user_data = user_data;
   req->deadline = deadline;
@@ -255,7 +260,7 @@
       g_get_override(exec_ctx, request, deadline, on_response, user_data)) {
     return;
   }
-  gpr_asprintf(&name, "HTTP:GET:%s:%s", request->host, request->path);
+  gpr_asprintf(&name, "HTTP:GET:%s:%s", request->host, request->http.path);
   internal_request_begin(exec_ctx, context, pollset, request, deadline,
                          on_response, user_data, name,
                          grpc_httpcli_format_get_request(request));
@@ -274,7 +279,7 @@
                       on_response, user_data)) {
     return;
   }
-  gpr_asprintf(&name, "HTTP:POST:%s:%s", request->host, request->path);
+  gpr_asprintf(&name, "HTTP:POST:%s:%s", request->host, request->http.path);
   internal_request_begin(
       exec_ctx, context, pollset, request, deadline, on_response, user_data,
       name, grpc_httpcli_format_post_request(request, body_bytes, body_size));
diff --git a/src/core/httpcli/httpcli.h b/src/core/lib/http/httpcli.h
similarity index 84%
rename from src/core/httpcli/httpcli.h
rename to src/core/lib/http/httpcli.h
index 1fe5782..b8d54a8 100644
--- a/src/core/httpcli/httpcli.h
+++ b/src/core/lib/http/httpcli.h
@@ -31,27 +31,20 @@
  *
  */
 
-#ifndef GRPC_CORE_HTTPCLI_HTTPCLI_H
-#define GRPC_CORE_HTTPCLI_HTTPCLI_H
+#ifndef GRPC_CORE_LIB_HTTP_HTTPCLI_H
+#define GRPC_CORE_LIB_HTTP_HTTPCLI_H
 
 #include <stddef.h>
 
 #include <grpc/support/time.h>
 
-#include "src/core/iomgr/endpoint.h"
-#include "src/core/iomgr/iomgr_internal.h"
-#include "src/core/iomgr/pollset_set.h"
+#include "src/core/lib/http/parser.h"
+#include "src/core/lib/iomgr/endpoint.h"
+#include "src/core/lib/iomgr/iomgr_internal.h"
+#include "src/core/lib/iomgr/pollset_set.h"
 
 /* User agent this library reports */
 #define GRPC_HTTPCLI_USER_AGENT "grpc-httpcli/0.0"
-/* Maximum length of a header string of the form 'Key: Value\r\n' */
-#define GRPC_HTTPCLI_MAX_HEADER_LENGTH 4096
-
-/* A single header to be passed in a request */
-typedef struct grpc_httpcli_header {
-  char *key;
-  char *value;
-} grpc_httpcli_header;
 
 /* Tracks in-progress http requests
    TODO(ctiller): allow caching and capturing multiple requests for the
@@ -77,33 +70,21 @@
   char *host;
   /* The host to verify in the SSL handshake (or NULL) */
   char *ssl_host_override;
-  /* The path of the resource to fetch */
-  char *path;
-  /* Additional headers: count and key/values; the following are supplied
-     automatically and MUST NOT be set here:
+  /* The main part of the request
+     The following headers are supplied automatically and MUST NOT be set here:
      Host, Connection, User-Agent */
-  size_t hdr_count;
-  grpc_httpcli_header *hdrs;
+  grpc_http_request http;
   /* handshaker to use ssl for the request */
   const grpc_httpcli_handshaker *handshaker;
 } grpc_httpcli_request;
 
-/* A response */
-typedef struct grpc_httpcli_response {
-  /* HTTP status code */
-  int status;
-  /* Headers: count and key/values */
-  size_t hdr_count;
-  grpc_httpcli_header *hdrs;
-  /* Body: length and contents; contents are NOT null-terminated */
-  size_t body_length;
-  char *body;
-} grpc_httpcli_response;
+/* Expose the parser response type as a httpcli response too */
+typedef struct grpc_http_response grpc_httpcli_response;
 
 /* Callback for grpc_httpcli_get and grpc_httpcli_post. */
 typedef void (*grpc_httpcli_response_cb)(grpc_exec_ctx *exec_ctx,
                                          void *user_data,
-                                         const grpc_httpcli_response *response);
+                                         const grpc_http_response *response);
 
 void grpc_httpcli_context_init(grpc_httpcli_context *context);
 void grpc_httpcli_context_destroy(grpc_httpcli_context *context);
@@ -160,4 +141,4 @@
 void grpc_httpcli_set_override(grpc_httpcli_get_override get,
                                grpc_httpcli_post_override post);
 
-#endif /* GRPC_CORE_HTTPCLI_HTTPCLI_H */
+#endif /* GRPC_CORE_LIB_HTTP_HTTPCLI_H */
diff --git a/src/core/httpcli/httpcli_security_connector.c b/src/core/lib/http/httpcli_security_connector.c
similarity index 97%
rename from src/core/httpcli/httpcli_security_connector.c
rename to src/core/lib/http/httpcli_security_connector.c
index 156961a..6f1630a 100644
--- a/src/core/httpcli/httpcli_security_connector.c
+++ b/src/core/lib/http/httpcli_security_connector.c
@@ -31,16 +31,16 @@
  *
  */
 
-#include "src/core/httpcli/httpcli.h"
+#include "src/core/lib/http/httpcli.h"
 
 #include <string.h>
 
-#include "src/core/security/handshake.h"
-#include "src/core/support/string.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
-#include "src/core/tsi/ssl_transport_security.h"
+#include "src/core/lib/security/handshake.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/tsi/ssl_transport_security.h"
 
 typedef struct {
   grpc_channel_security_connector base;
diff --git a/src/core/lib/http/parser.c b/src/core/lib/http/parser.c
new file mode 100644
index 0000000..5d4e304
--- /dev/null
+++ b/src/core/lib/http/parser.c
@@ -0,0 +1,313 @@
+/*
+ *
+ * Copyright 2015-2016, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "src/core/lib/http/parser.h"
+
+#include <string.h>
+
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+#include <grpc/support/useful.h>
+
+static char *buf2str(void *buffer, size_t length) {
+  char *out = gpr_malloc(length + 1);
+  memcpy(out, buffer, length);
+  out[length] = 0;
+  return out;
+}
+
+static int handle_response_line(grpc_http_parser *parser) {
+  uint8_t *beg = parser->cur_line;
+  uint8_t *cur = beg;
+  uint8_t *end = beg + parser->cur_line_length;
+
+  if (cur == end || *cur++ != 'H') goto error;
+  if (cur == end || *cur++ != 'T') goto error;
+  if (cur == end || *cur++ != 'T') goto error;
+  if (cur == end || *cur++ != 'P') goto error;
+  if (cur == end || *cur++ != '/') goto error;
+  if (cur == end || *cur++ != '1') goto error;
+  if (cur == end || *cur++ != '.') goto error;
+  if (cur == end || *cur < '0' || *cur++ > '1') goto error;
+  if (cur == end || *cur++ != ' ') goto error;
+  if (cur == end || *cur < '1' || *cur++ > '9') goto error;
+  if (cur == end || *cur < '0' || *cur++ > '9') goto error;
+  if (cur == end || *cur < '0' || *cur++ > '9') goto error;
+  parser->http.response.status =
+      (cur[-3] - '0') * 100 + (cur[-2] - '0') * 10 + (cur[-1] - '0');
+  if (cur == end || *cur++ != ' ') goto error;
+
+  /* we don't really care about the status code message */
+
+  return 1;
+
+error:
+  gpr_log(GPR_ERROR, "Failed parsing response line");
+  return 0;
+}
+
+static int handle_request_line(grpc_http_parser *parser) {
+  uint8_t *beg = parser->cur_line;
+  uint8_t *cur = beg;
+  uint8_t *end = beg + parser->cur_line_length;
+  uint8_t vers_major = 0;
+  uint8_t vers_minor = 0;
+
+  while (cur != end && *cur++ != ' ')
+    ;
+  if (cur == end) goto error;
+  parser->http.request.method = buf2str(beg, (size_t)(cur - beg - 1));
+
+  beg = cur;
+  while (cur != end && *cur++ != ' ')
+    ;
+  if (cur == end) goto error;
+  parser->http.request.path = buf2str(beg, (size_t)(cur - beg - 1));
+
+  if (cur == end || *cur++ != 'H') goto error;
+  if (cur == end || *cur++ != 'T') goto error;
+  if (cur == end || *cur++ != 'T') goto error;
+  if (cur == end || *cur++ != 'P') goto error;
+  if (cur == end || *cur++ != '/') goto error;
+  vers_major = (uint8_t)(*cur++ - '1' + 1);
+  ++cur;
+  if (cur == end) goto error;
+  vers_minor = (uint8_t)(*cur++ - '1' + 1);
+
+  if (vers_major == 1) {
+    if (vers_minor == 0) {
+      parser->http.request.version = GRPC_HTTP_HTTP10;
+    } else if (vers_minor == 1) {
+      parser->http.request.version = GRPC_HTTP_HTTP11;
+    } else {
+      goto error;
+    }
+  } else if (vers_major == 2) {
+    if (vers_minor == 0) {
+      parser->http.request.version = GRPC_HTTP_HTTP20;
+    } else {
+      goto error;
+    }
+  } else {
+    goto error;
+  }
+
+  return 1;
+
+error:
+  gpr_log(GPR_ERROR, "Failed parsing request line");
+  return 0;
+}
+
+static int handle_first_line(grpc_http_parser *parser) {
+  if (parser->cur_line[0] == 'H') {
+    parser->type = GRPC_HTTP_RESPONSE;
+    return handle_response_line(parser);
+  } else {
+    parser->type = GRPC_HTTP_REQUEST;
+    return handle_request_line(parser);
+  }
+}
+
+static int add_header(grpc_http_parser *parser) {
+  uint8_t *beg = parser->cur_line;
+  uint8_t *cur = beg;
+  uint8_t *end = beg + parser->cur_line_length;
+  size_t *hdr_count = NULL;
+  grpc_http_header **hdrs = NULL;
+  grpc_http_header hdr = {NULL, NULL};
+
+  GPR_ASSERT(cur != end);
+
+  if (*cur == ' ' || *cur == '\t') {
+    gpr_log(GPR_ERROR, "Continued header lines not supported yet");
+    goto error;
+  }
+
+  while (cur != end && *cur != ':') {
+    cur++;
+  }
+  if (cur == end) {
+    gpr_log(GPR_ERROR, "Didn't find ':' in header string");
+    goto error;
+  }
+  GPR_ASSERT(cur >= beg);
+  hdr.key = buf2str(beg, (size_t)(cur - beg));
+  cur++; /* skip : */
+
+  while (cur != end && (*cur == ' ' || *cur == '\t')) {
+    cur++;
+  }
+  GPR_ASSERT(end - cur >= 2);
+  hdr.value = buf2str(cur, (size_t)(end - cur) - 2);
+
+  if (parser->type == GRPC_HTTP_RESPONSE) {
+    hdr_count = &parser->http.response.hdr_count;
+    hdrs = &parser->http.response.hdrs;
+  } else if (parser->type == GRPC_HTTP_REQUEST) {
+    hdr_count = &parser->http.request.hdr_count;
+    hdrs = &parser->http.request.hdrs;
+  } else {
+    return 0;
+  }
+
+  if (*hdr_count == parser->hdr_capacity) {
+    parser->hdr_capacity =
+        GPR_MAX(parser->hdr_capacity + 1, parser->hdr_capacity * 3 / 2);
+    *hdrs = gpr_realloc(*hdrs, parser->hdr_capacity * sizeof(**hdrs));
+  }
+  (*hdrs)[(*hdr_count)++] = hdr;
+  return 1;
+
+error:
+  gpr_free(hdr.key);
+  gpr_free(hdr.value);
+  return 0;
+}
+
+static int finish_line(grpc_http_parser *parser) {
+  switch (parser->state) {
+    case GRPC_HTTP_FIRST_LINE:
+      if (!handle_first_line(parser)) {
+        return 0;
+      }
+      parser->state = GRPC_HTTP_HEADERS;
+      break;
+    case GRPC_HTTP_HEADERS:
+      if (parser->cur_line_length == 2) {
+        parser->state = GRPC_HTTP_BODY;
+        break;
+      }
+      if (!add_header(parser)) {
+        return 0;
+      }
+      break;
+    case GRPC_HTTP_BODY:
+      GPR_UNREACHABLE_CODE(return 0);
+  }
+
+  parser->cur_line_length = 0;
+  return 1;
+}
+
+static int addbyte_body(grpc_http_parser *parser, uint8_t byte) {
+  size_t *body_length = NULL;
+  char **body = NULL;
+
+  if (parser->type == GRPC_HTTP_RESPONSE) {
+    body_length = &parser->http.response.body_length;
+    body = &parser->http.response.body;
+  } else if (parser->type == GRPC_HTTP_REQUEST) {
+    body_length = &parser->http.request.body_length;
+    body = &parser->http.request.body;
+  } else {
+    return 0;
+  }
+
+  if (*body_length == parser->body_capacity) {
+    parser->body_capacity = GPR_MAX(8, parser->body_capacity * 3 / 2);
+    *body = gpr_realloc((void *)*body, parser->body_capacity);
+  }
+  (*body)[*body_length] = (char)byte;
+  (*body_length)++;
+
+  return 1;
+}
+
+static int addbyte(grpc_http_parser *parser, uint8_t byte) {
+  switch (parser->state) {
+    case GRPC_HTTP_FIRST_LINE:
+    case GRPC_HTTP_HEADERS:
+      if (parser->cur_line_length >= GRPC_HTTP_PARSER_MAX_HEADER_LENGTH) {
+        gpr_log(GPR_ERROR, "HTTP client max line length (%d) exceeded",
+                GRPC_HTTP_PARSER_MAX_HEADER_LENGTH);
+        return 0;
+      }
+      parser->cur_line[parser->cur_line_length] = byte;
+      parser->cur_line_length++;
+      if (parser->cur_line_length >= 2 &&
+          parser->cur_line[parser->cur_line_length - 2] == '\r' &&
+          parser->cur_line[parser->cur_line_length - 1] == '\n') {
+        return finish_line(parser);
+      } else {
+        return 1;
+      }
+      GPR_UNREACHABLE_CODE(return 0);
+    case GRPC_HTTP_BODY:
+      return addbyte_body(parser, byte);
+  }
+  GPR_UNREACHABLE_CODE(return 0);
+}
+
+void grpc_http_parser_init(grpc_http_parser *parser) {
+  memset(parser, 0, sizeof(*parser));
+  parser->state = GRPC_HTTP_FIRST_LINE;
+  parser->type = GRPC_HTTP_UNKNOWN;
+}
+
+void grpc_http_parser_destroy(grpc_http_parser *parser) {
+  size_t i;
+  if (parser->type == GRPC_HTTP_RESPONSE) {
+    gpr_free(parser->http.response.body);
+    for (i = 0; i < parser->http.response.hdr_count; i++) {
+      gpr_free(parser->http.response.hdrs[i].key);
+      gpr_free(parser->http.response.hdrs[i].value);
+    }
+    gpr_free(parser->http.response.hdrs);
+  } else if (parser->type == GRPC_HTTP_REQUEST) {
+    gpr_free(parser->http.request.body);
+    for (i = 0; i < parser->http.request.hdr_count; i++) {
+      gpr_free(parser->http.request.hdrs[i].key);
+      gpr_free(parser->http.request.hdrs[i].value);
+    }
+    gpr_free(parser->http.request.hdrs);
+    gpr_free(parser->http.request.method);
+    gpr_free(parser->http.request.path);
+  }
+}
+
+int grpc_http_parser_parse(grpc_http_parser *parser, gpr_slice slice) {
+  size_t i;
+
+  for (i = 0; i < GPR_SLICE_LENGTH(slice); i++) {
+    if (!addbyte(parser, GPR_SLICE_START_PTR(slice)[i])) {
+      return 0;
+    }
+  }
+
+  return 1;
+}
+
+int grpc_http_parser_eof(grpc_http_parser *parser) {
+  return parser->state == GRPC_HTTP_BODY;
+}
diff --git a/src/core/lib/http/parser.h b/src/core/lib/http/parser.h
new file mode 100644
index 0000000..6a72174
--- /dev/null
+++ b/src/core/lib/http/parser.h
@@ -0,0 +1,116 @@
+/*
+ *
+ * Copyright 2015-2016, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#ifndef GRPC_CORE_LIB_HTTP_PARSER_H
+#define GRPC_CORE_LIB_HTTP_PARSER_H
+
+#include <grpc/support/port_platform.h>
+#include <grpc/support/slice.h>
+
+/* Maximum length of a header string of the form 'Key: Value\r\n' */
+#define GRPC_HTTP_PARSER_MAX_HEADER_LENGTH 4096
+
+/* A single header to be passed in a request */
+typedef struct grpc_http_header {
+  char *key;
+  char *value;
+} grpc_http_header;
+
+typedef enum {
+  GRPC_HTTP_FIRST_LINE,
+  GRPC_HTTP_HEADERS,
+  GRPC_HTTP_BODY
+} grpc_http_parser_state;
+
+typedef enum {
+  GRPC_HTTP_HTTP10,
+  GRPC_HTTP_HTTP11,
+  GRPC_HTTP_HTTP20,
+} grpc_http_version;
+
+typedef enum {
+  GRPC_HTTP_RESPONSE,
+  GRPC_HTTP_REQUEST,
+  GRPC_HTTP_UNKNOWN
+} grpc_http_type;
+
+/* A request */
+typedef struct grpc_http_request {
+  /* Method of the request (e.g. GET, POST) */
+  char *method;
+  /* The path of the resource to fetch */
+  char *path;
+  /* HTTP version to use */
+  grpc_http_version version;
+  /* Headers attached to the request */
+  size_t hdr_count;
+  grpc_http_header *hdrs;
+  /* Body: length and contents; contents are NOT null-terminated */
+  size_t body_length;
+  char *body;
+} grpc_http_request;
+
+/* A response */
+typedef struct grpc_http_response {
+  /* HTTP status code */
+  int status;
+  /* Headers: count and key/values */
+  size_t hdr_count;
+  grpc_http_header *hdrs;
+  /* Body: length and contents; contents are NOT null-terminated */
+  size_t body_length;
+  char *body;
+} grpc_http_response;
+
+typedef struct {
+  grpc_http_parser_state state;
+  grpc_http_type type;
+
+  union {
+    grpc_http_response response;
+    grpc_http_request request;
+  } http;
+  size_t body_capacity;
+  size_t hdr_capacity;
+
+  uint8_t cur_line[GRPC_HTTP_PARSER_MAX_HEADER_LENGTH];
+  size_t cur_line_length;
+} grpc_http_parser;
+
+void grpc_http_parser_init(grpc_http_parser *parser);
+void grpc_http_parser_destroy(grpc_http_parser *parser);
+
+int grpc_http_parser_parse(grpc_http_parser *parser, gpr_slice slice);
+int grpc_http_parser_eof(grpc_http_parser *parser);
+
+#endif /* GRPC_CORE_LIB_HTTP_PARSER_H */
diff --git a/src/core/iomgr/closure.c b/src/core/lib/iomgr/closure.c
similarity index 98%
rename from src/core/iomgr/closure.c
rename to src/core/lib/iomgr/closure.c
index 3a96f73..724ebc2 100644
--- a/src/core/iomgr/closure.c
+++ b/src/core/lib/iomgr/closure.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/iomgr/closure.h"
+#include "src/core/lib/iomgr/closure.h"
 
 #include <grpc/support/alloc.h>
 
diff --git a/src/core/iomgr/closure.h b/src/core/lib/iomgr/closure.h
similarity index 96%
rename from src/core/iomgr/closure.h
rename to src/core/lib/iomgr/closure.h
index d5e1f45..2597cf1 100644
--- a/src/core/iomgr/closure.h
+++ b/src/core/lib/iomgr/closure.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_CLOSURE_H
-#define GRPC_CORE_IOMGR_CLOSURE_H
+#ifndef GRPC_CORE_LIB_IOMGR_CLOSURE_H
+#define GRPC_CORE_LIB_IOMGR_CLOSURE_H
 
 #include <grpc/support/port_platform.h>
 #include <stdbool.h>
@@ -95,4 +95,4 @@
 /** return the next pointer for a queued closure list */
 grpc_closure *grpc_closure_next(grpc_closure *closure);
 
-#endif /* GRPC_CORE_IOMGR_CLOSURE_H */
+#endif /* GRPC_CORE_LIB_IOMGR_CLOSURE_H */
diff --git a/src/core/iomgr/endpoint.c b/src/core/lib/iomgr/endpoint.c
similarity index 96%
rename from src/core/iomgr/endpoint.c
rename to src/core/lib/iomgr/endpoint.c
index bd64707..576b5a6 100644
--- a/src/core/iomgr/endpoint.c
+++ b/src/core/lib/iomgr/endpoint.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/iomgr/endpoint.h"
+#include "src/core/lib/iomgr/endpoint.h"
 
 void grpc_endpoint_read(grpc_exec_ctx* exec_ctx, grpc_endpoint* ep,
                         gpr_slice_buffer* slices, grpc_closure* cb) {
diff --git a/src/core/iomgr/endpoint.h b/src/core/lib/iomgr/endpoint.h
similarity index 95%
rename from src/core/iomgr/endpoint.h
rename to src/core/lib/iomgr/endpoint.h
index 788f3ac..918e705 100644
--- a/src/core/iomgr/endpoint.h
+++ b/src/core/lib/iomgr/endpoint.h
@@ -31,14 +31,14 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_ENDPOINT_H
-#define GRPC_CORE_IOMGR_ENDPOINT_H
+#ifndef GRPC_CORE_LIB_IOMGR_ENDPOINT_H
+#define GRPC_CORE_LIB_IOMGR_ENDPOINT_H
 
-#include "src/core/iomgr/pollset.h"
-#include "src/core/iomgr/pollset_set.h"
 #include <grpc/support/slice.h>
 #include <grpc/support/slice_buffer.h>
 #include <grpc/support/time.h>
+#include "src/core/lib/iomgr/pollset.h"
+#include "src/core/lib/iomgr/pollset_set.h"
 
 /* An endpoint caps a streaming channel between two communicating processes.
    Examples may be: a tcp socket, <stdin+stdout>, or some shared memory. */
@@ -99,4 +99,4 @@
   const grpc_endpoint_vtable *vtable;
 };
 
-#endif /* GRPC_CORE_IOMGR_ENDPOINT_H */
+#endif /* GRPC_CORE_LIB_IOMGR_ENDPOINT_H */
diff --git a/src/core/iomgr/endpoint_pair.h b/src/core/lib/iomgr/endpoint_pair.h
similarity index 90%
rename from src/core/iomgr/endpoint_pair.h
rename to src/core/lib/iomgr/endpoint_pair.h
index 59015d8..bef8bb3 100644
--- a/src/core/iomgr/endpoint_pair.h
+++ b/src/core/lib/iomgr/endpoint_pair.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_ENDPOINT_PAIR_H
-#define GRPC_CORE_IOMGR_ENDPOINT_PAIR_H
+#ifndef GRPC_CORE_LIB_IOMGR_ENDPOINT_PAIR_H
+#define GRPC_CORE_LIB_IOMGR_ENDPOINT_PAIR_H
 
-#include "src/core/iomgr/endpoint.h"
+#include "src/core/lib/iomgr/endpoint.h"
 
 typedef struct {
   grpc_endpoint *client;
@@ -44,4 +44,4 @@
 grpc_endpoint_pair grpc_iomgr_create_endpoint_pair(const char *name,
                                                    size_t read_slice_size);
 
-#endif /* GRPC_CORE_IOMGR_ENDPOINT_PAIR_H */
+#endif /* GRPC_CORE_LIB_IOMGR_ENDPOINT_PAIR_H */
diff --git a/src/core/iomgr/endpoint_pair_posix.c b/src/core/lib/iomgr/endpoint_pair_posix.c
similarity index 90%
rename from src/core/iomgr/endpoint_pair_posix.c
rename to src/core/lib/iomgr/endpoint_pair_posix.c
index 56f6f14..e0ce47c 100644
--- a/src/core/iomgr/endpoint_pair_posix.c
+++ b/src/core/lib/iomgr/endpoint_pair_posix.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,24 +35,25 @@
 
 #ifdef GPR_POSIX_SOCKET
 
-#include "src/core/iomgr/endpoint_pair.h"
-#include "src/core/iomgr/socket_utils_posix.h"
+#include "src/core/lib/iomgr/endpoint_pair.h"
+#include "src/core/lib/iomgr/socket_utils_posix.h"
+#include "src/core/lib/iomgr/unix_sockets_posix.h"
 
 #include <errno.h>
 #include <fcntl.h>
 #include <string.h>
-#include <sys/types.h>
 #include <sys/socket.h>
+#include <sys/types.h>
 
-#include "src/core/iomgr/tcp_posix.h"
-#include "src/core/support/string.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
+#include "src/core/lib/iomgr/tcp_posix.h"
+#include "src/core/lib/support/string.h"
 
 static void create_sockets(int sv[2]) {
   int flags;
-  GPR_ASSERT(socketpair(AF_UNIX, SOCK_STREAM, 0, sv) == 0);
+  grpc_create_socketpair_if_unix(sv);
   flags = fcntl(sv[0], F_GETFL, 0);
   GPR_ASSERT(fcntl(sv[0], F_SETFL, flags | O_NONBLOCK) == 0);
   flags = fcntl(sv[1], F_GETFL, 0);
diff --git a/src/core/iomgr/endpoint_pair_windows.c b/src/core/lib/iomgr/endpoint_pair_windows.c
similarity index 93%
rename from src/core/iomgr/endpoint_pair_windows.c
rename to src/core/lib/iomgr/endpoint_pair_windows.c
index db9d092..cba18db 100644
--- a/src/core/iomgr/endpoint_pair_windows.c
+++ b/src/core/lib/iomgr/endpoint_pair_windows.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -34,16 +34,16 @@
 #include <grpc/support/port_platform.h>
 
 #ifdef GPR_WINSOCK_SOCKET
-#include "src/core/iomgr/sockaddr_utils.h"
-#include "src/core/iomgr/endpoint_pair.h"
+#include "src/core/lib/iomgr/endpoint_pair.h"
+#include "src/core/lib/iomgr/sockaddr_utils.h"
 
 #include <errno.h>
 #include <fcntl.h>
 #include <string.h>
 
-#include "src/core/iomgr/tcp_windows.h"
-#include "src/core/iomgr/socket_windows.h"
 #include <grpc/support/log.h>
+#include "src/core/lib/iomgr/socket_windows.h"
+#include "src/core/lib/iomgr/tcp_windows.h"
 
 static void create_sockets(SOCKET sv[2]) {
   SOCKET svr_sock = INVALID_SOCKET;
diff --git a/src/core/iomgr/ev_poll_and_epoll_posix.c b/src/core/lib/iomgr/ev_poll_and_epoll_posix.c
similarity index 99%
rename from src/core/iomgr/ev_poll_and_epoll_posix.c
rename to src/core/lib/iomgr/ev_poll_and_epoll_posix.c
index 39406a4..beccb9e 100644
--- a/src/core/iomgr/ev_poll_and_epoll_posix.c
+++ b/src/core/lib/iomgr/ev_poll_and_epoll_posix.c
@@ -46,7 +46,7 @@
 
 #ifdef GPR_POSIX_SOCKET
 
-#include "src/core/iomgr/ev_poll_and_epoll_posix.h"
+#include "src/core/lib/iomgr/ev_poll_and_epoll_posix.h"
 
 #include <assert.h>
 #include <errno.h>
@@ -61,10 +61,10 @@
 #include <grpc/support/tls.h>
 #include <grpc/support/useful.h>
 
-#include "src/core/iomgr/iomgr_internal.h"
-#include "src/core/iomgr/wakeup_fd_posix.h"
-#include "src/core/profiling/timers.h"
-#include "src/core/support/block_annotate.h"
+#include "src/core/lib/iomgr/iomgr_internal.h"
+#include "src/core/lib/iomgr/wakeup_fd_posix.h"
+#include "src/core/lib/profiling/timers.h"
+#include "src/core/lib/support/block_annotate.h"
 
 /*******************************************************************************
  * FD declarations
@@ -1338,8 +1338,8 @@
 
   for (i = 2; i < pfd_count; i++) {
     grpc_fd *fd = watchers[i].fd;
-    pfds[i].events = (short)fd_begin_poll(fd, pollset, worker, POLLIN,
-                                               POLLOUT, &watchers[i]);
+    pfds[i].events = (short)fd_begin_poll(fd, pollset, worker, POLLIN, POLLOUT,
+                                          &watchers[i]);
     GRPC_FD_UNREF(fd, "multipoller_start");
   }
 
@@ -1445,9 +1445,9 @@
 #include <grpc/support/log.h>
 #include <grpc/support/useful.h>
 
-#include "src/core/iomgr/ev_posix.h"
-#include "src/core/profiling/timers.h"
-#include "src/core/support/block_annotate.h"
+#include "src/core/lib/iomgr/ev_posix.h"
+#include "src/core/lib/profiling/timers.h"
+#include "src/core/lib/support/block_annotate.h"
 
 static void set_ready(grpc_exec_ctx *exec_ctx, grpc_fd *fd, grpc_closure **st) {
   /* only one set_ready can be active at once (but there may be a racing
diff --git a/src/core/iomgr/ev_poll_and_epoll_posix.h b/src/core/lib/iomgr/ev_poll_and_epoll_posix.h
similarity index 97%
rename from src/core/iomgr/ev_poll_and_epoll_posix.h
rename to src/core/lib/iomgr/ev_poll_and_epoll_posix.h
index aacdbdf..4ca371f 100644
--- a/src/core/iomgr/ev_poll_and_epoll_posix.h
+++ b/src/core/lib/iomgr/ev_poll_and_epoll_posix.h
@@ -34,7 +34,7 @@
 #ifndef GRPC_CORE_IOMGR_EV_POLL_AND_EPOLL_POSIX_H
 #define GRPC_CORE_IOMGR_EV_POLL_AND_EPOLL_POSIX_H
 
-#include "src/core/iomgr/ev_posix.h"
+#include "src/core/lib/iomgr/ev_posix.h"
 
 const grpc_event_engine_vtable *grpc_init_poll_and_epoll_posix(void);
 
diff --git a/src/core/iomgr/ev_posix.c b/src/core/lib/iomgr/ev_posix.c
similarity index 98%
rename from src/core/iomgr/ev_posix.c
rename to src/core/lib/iomgr/ev_posix.c
index e3e3864..0d16d6a 100644
--- a/src/core/iomgr/ev_posix.c
+++ b/src/core/lib/iomgr/ev_posix.c
@@ -31,11 +31,11 @@
  *
  */
 
-#include "src/core/iomgr/ev_posix.h"
+#include "src/core/lib/iomgr/ev_posix.h"
 
 #include <grpc/support/log.h>
 
-#include "src/core/iomgr/ev_poll_and_epoll_posix.h"
+#include "src/core/lib/iomgr/ev_poll_and_epoll_posix.h"
 
 static const grpc_event_engine_vtable *g_event_engine;
 
diff --git a/src/core/iomgr/ev_posix.h b/src/core/lib/iomgr/ev_posix.h
similarity index 97%
rename from src/core/iomgr/ev_posix.h
rename to src/core/lib/iomgr/ev_posix.h
index a7c23d5..8c909f1 100644
--- a/src/core/iomgr/ev_posix.h
+++ b/src/core/lib/iomgr/ev_posix.h
@@ -36,10 +36,10 @@
 
 #include <poll.h>
 
-#include "src/core/iomgr/exec_ctx.h"
-#include "src/core/iomgr/pollset.h"
-#include "src/core/iomgr/pollset_set.h"
-#include "src/core/iomgr/wakeup_fd_posix.h"
+#include "src/core/lib/iomgr/exec_ctx.h"
+#include "src/core/lib/iomgr/pollset.h"
+#include "src/core/lib/iomgr/pollset_set.h"
+#include "src/core/lib/iomgr/wakeup_fd_posix.h"
 
 typedef struct grpc_fd grpc_fd;
 
diff --git a/src/core/iomgr/exec_ctx.c b/src/core/lib/iomgr/exec_ctx.c
similarity index 98%
rename from src/core/iomgr/exec_ctx.c
rename to src/core/lib/iomgr/exec_ctx.c
index 893fe45..1ed6da6 100644
--- a/src/core/iomgr/exec_ctx.c
+++ b/src/core/lib/iomgr/exec_ctx.c
@@ -31,13 +31,13 @@
  *
  */
 
-#include "src/core/iomgr/exec_ctx.h"
+#include "src/core/lib/iomgr/exec_ctx.h"
 
 #include <grpc/support/log.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 
-#include "src/core/profiling/timers.h"
+#include "src/core/lib/profiling/timers.h"
 
 #ifndef GRPC_EXECUTION_CONTEXT_SANITIZER
 bool grpc_exec_ctx_flush(grpc_exec_ctx *exec_ctx) {
diff --git a/src/core/iomgr/exec_ctx.h b/src/core/lib/iomgr/exec_ctx.h
similarity index 95%
rename from src/core/iomgr/exec_ctx.h
rename to src/core/lib/iomgr/exec_ctx.h
index 07b54a0..e62ea2d 100644
--- a/src/core/iomgr/exec_ctx.h
+++ b/src/core/lib/iomgr/exec_ctx.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_EXEC_CTX_H
-#define GRPC_CORE_IOMGR_EXEC_CTX_H
+#ifndef GRPC_CORE_LIB_IOMGR_EXEC_CTX_H
+#define GRPC_CORE_LIB_IOMGR_EXEC_CTX_H
 
-#include "src/core/iomgr/closure.h"
+#include "src/core/lib/iomgr/closure.h"
 
 /* #define GRPC_EXECUTION_CONTEXT_SANITIZER 1 */
 
@@ -95,4 +95,4 @@
 void grpc_exec_ctx_global_init(void);
 void grpc_exec_ctx_global_shutdown(void);
 
-#endif /* GRPC_CORE_IOMGR_EXEC_CTX_H */
+#endif /* GRPC_CORE_LIB_IOMGR_EXEC_CTX_H */
diff --git a/src/core/iomgr/executor.c b/src/core/lib/iomgr/executor.c
similarity index 98%
rename from src/core/iomgr/executor.c
rename to src/core/lib/iomgr/executor.c
index f22d8f3..42a9db3 100644
--- a/src/core/iomgr/executor.c
+++ b/src/core/lib/iomgr/executor.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/iomgr/executor.h"
+#include "src/core/lib/iomgr/executor.h"
 
 #include <string.h>
 
@@ -39,7 +39,7 @@
 #include <grpc/support/log.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
-#include "src/core/iomgr/exec_ctx.h"
+#include "src/core/lib/iomgr/exec_ctx.h"
 
 typedef struct grpc_executor_data {
   int busy;          /**< is the thread currently running? */
diff --git a/src/core/iomgr/executor.h b/src/core/lib/iomgr/executor.h
similarity index 92%
rename from src/core/iomgr/executor.h
rename to src/core/lib/iomgr/executor.h
index f66b356..f187141 100644
--- a/src/core/iomgr/executor.h
+++ b/src/core/lib/iomgr/executor.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_EXECUTOR_H
-#define GRPC_CORE_IOMGR_EXECUTOR_H
+#ifndef GRPC_CORE_LIB_IOMGR_EXECUTOR_H
+#define GRPC_CORE_LIB_IOMGR_EXECUTOR_H
 
-#include "src/core/iomgr/closure.h"
+#include "src/core/lib/iomgr/closure.h"
 
 /** Initialize the global executor.
  *
@@ -50,4 +50,4 @@
 /** Shutdown the executor, running all pending work as part of the call */
 void grpc_executor_shutdown();
 
-#endif /* GRPC_CORE_IOMGR_EXECUTOR_H */
+#endif /* GRPC_CORE_LIB_IOMGR_EXECUTOR_H */
diff --git a/src/core/iomgr/iocp_windows.c b/src/core/lib/iomgr/iocp_windows.c
similarity index 97%
rename from src/core/iomgr/iocp_windows.c
rename to src/core/lib/iomgr/iocp_windows.c
index fa87e52..682a32c 100644
--- a/src/core/iomgr/iocp_windows.c
+++ b/src/core/lib/iomgr/iocp_windows.c
@@ -37,15 +37,15 @@
 
 #include <winsock2.h>
 
+#include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/log_win32.h>
-#include <grpc/support/alloc.h>
 #include <grpc/support/thd.h>
 
-#include "src/core/iomgr/timer.h"
-#include "src/core/iomgr/iocp_windows.h"
-#include "src/core/iomgr/iomgr_internal.h"
-#include "src/core/iomgr/socket_windows.h"
+#include "src/core/lib/iomgr/iocp_windows.h"
+#include "src/core/lib/iomgr/iomgr_internal.h"
+#include "src/core/lib/iomgr/socket_windows.h"
+#include "src/core/lib/iomgr/timer.h"
 
 static ULONG g_iocp_kick_token;
 static OVERLAPPED g_iocp_custom_overlap;
diff --git a/src/core/iomgr/iocp_windows.h b/src/core/lib/iomgr/iocp_windows.h
similarity index 92%
rename from src/core/iomgr/iocp_windows.h
rename to src/core/lib/iomgr/iocp_windows.h
index 570b892..856c837 100644
--- a/src/core/iomgr/iocp_windows.h
+++ b/src/core/lib/iomgr/iocp_windows.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_IOCP_WINDOWS_H
-#define GRPC_CORE_IOMGR_IOCP_WINDOWS_H
+#ifndef GRPC_CORE_LIB_IOMGR_IOCP_WINDOWS_H
+#define GRPC_CORE_LIB_IOMGR_IOCP_WINDOWS_H
 
 #include <grpc/support/sync.h>
 
-#include "src/core/iomgr/socket_windows.h"
+#include "src/core/lib/iomgr/socket_windows.h"
 
 typedef enum {
   GRPC_IOCP_WORK_WORK,
@@ -60,4 +60,4 @@
                                 grpc_winsocket *winsocket,
                                 grpc_closure *closure);
 
-#endif /* GRPC_CORE_IOMGR_IOCP_WINDOWS_H */
+#endif /* GRPC_CORE_LIB_IOMGR_IOCP_WINDOWS_H */
diff --git a/src/core/iomgr/iomgr.c b/src/core/lib/iomgr/iomgr.c
similarity index 95%
rename from src/core/iomgr/iomgr.c
rename to src/core/lib/iomgr/iomgr.c
index f009a6d..e74a7c2 100644
--- a/src/core/iomgr/iomgr.c
+++ b/src/core/lib/iomgr/iomgr.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/iomgr/iomgr.h"
+#include "src/core/lib/iomgr/iomgr.h"
 
 #include <stdlib.h>
 #include <string.h>
@@ -43,11 +43,11 @@
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
 
-#include "src/core/iomgr/exec_ctx.h"
-#include "src/core/iomgr/iomgr_internal.h"
-#include "src/core/iomgr/timer.h"
-#include "src/core/support/env.h"
-#include "src/core/support/string.h"
+#include "src/core/lib/iomgr/exec_ctx.h"
+#include "src/core/lib/iomgr/iomgr_internal.h"
+#include "src/core/lib/iomgr/timer.h"
+#include "src/core/lib/support/env.h"
+#include "src/core/lib/support/string.h"
 
 static gpr_mu g_mu;
 static gpr_cv g_rcv;
diff --git a/src/core/iomgr/iomgr.h b/src/core/lib/iomgr/iomgr.h
similarity index 93%
rename from src/core/iomgr/iomgr.h
rename to src/core/lib/iomgr/iomgr.h
index e1237a4..babf0a8 100644
--- a/src/core/iomgr/iomgr.h
+++ b/src/core/lib/iomgr/iomgr.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_IOMGR_H
-#define GRPC_CORE_IOMGR_IOMGR_H
+#ifndef GRPC_CORE_LIB_IOMGR_IOMGR_H
+#define GRPC_CORE_LIB_IOMGR_IOMGR_H
 
 /** Initializes the iomgr. */
 void grpc_iomgr_init(void);
@@ -40,4 +40,4 @@
 /** Signals the intention to shutdown the iomgr. */
 void grpc_iomgr_shutdown(void);
 
-#endif /* GRPC_CORE_IOMGR_IOMGR_H */
+#endif /* GRPC_CORE_LIB_IOMGR_IOMGR_H */
diff --git a/src/core/iomgr/iomgr_internal.h b/src/core/lib/iomgr/iomgr_internal.h
similarity index 92%
rename from src/core/iomgr/iomgr_internal.h
rename to src/core/lib/iomgr/iomgr_internal.h
index 733893e..404f402 100644
--- a/src/core/iomgr/iomgr_internal.h
+++ b/src/core/lib/iomgr/iomgr_internal.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_IOMGR_INTERNAL_H
-#define GRPC_CORE_IOMGR_IOMGR_INTERNAL_H
+#ifndef GRPC_CORE_LIB_IOMGR_IOMGR_INTERNAL_H
+#define GRPC_CORE_LIB_IOMGR_IOMGR_INTERNAL_H
 
 #include <stdbool.h>
 
-#include "src/core/iomgr/iomgr.h"
+#include "src/core/lib/iomgr/iomgr.h"
 
 typedef struct grpc_iomgr_object {
   char *name;
@@ -55,4 +55,4 @@
 
 bool grpc_iomgr_abort_on_leaks(void);
 
-#endif /* GRPC_CORE_IOMGR_IOMGR_INTERNAL_H */
+#endif /* GRPC_CORE_LIB_IOMGR_IOMGR_INTERNAL_H */
diff --git a/src/core/iomgr/iomgr_posix.c b/src/core/lib/iomgr/iomgr_posix.c
similarity index 91%
rename from src/core/iomgr/iomgr_posix.c
rename to src/core/lib/iomgr/iomgr_posix.c
index baf3bd5..641caa1 100644
--- a/src/core/iomgr/iomgr_posix.c
+++ b/src/core/lib/iomgr/iomgr_posix.c
@@ -35,10 +35,10 @@
 
 #ifdef GPR_POSIX_SOCKET
 
-#include "src/core/debug/trace.h"
-#include "src/core/iomgr/ev_posix.h"
-#include "src/core/iomgr/iomgr_posix.h"
-#include "src/core/iomgr/tcp_posix.h"
+#include "src/core/lib/debug/trace.h"
+#include "src/core/lib/iomgr/ev_posix.h"
+#include "src/core/lib/iomgr/iomgr_posix.h"
+#include "src/core/lib/iomgr/tcp_posix.h"
 
 void grpc_iomgr_platform_init(void) {
   grpc_event_engine_init();
diff --git a/src/core/iomgr/workqueue_windows.h b/src/core/lib/iomgr/iomgr_posix.h
similarity index 89%
copy from src/core/iomgr/workqueue_windows.h
copy to src/core/lib/iomgr/iomgr_posix.h
index 7e81869..6a8996e 100644
--- a/src/core/iomgr/workqueue_windows.h
+++ b/src/core/lib/iomgr/iomgr_posix.h
@@ -31,7 +31,9 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_WORKQUEUE_WINDOWS_H
-#define GRPC_CORE_IOMGR_WORKQUEUE_WINDOWS_H
+#ifndef GRPC_CORE_LIB_IOMGR_IOMGR_POSIX_H
+#define GRPC_CORE_LIB_IOMGR_IOMGR_POSIX_H
 
-#endif /* GRPC_CORE_IOMGR_WORKQUEUE_WINDOWS_H */
+#include "src/core/lib/iomgr/iomgr_internal.h"
+
+#endif /* GRPC_CORE_LIB_IOMGR_IOMGR_POSIX_H */
diff --git a/src/core/iomgr/iomgr_windows.c b/src/core/lib/iomgr/iomgr_windows.c
similarity index 91%
rename from src/core/iomgr/iomgr_windows.c
rename to src/core/lib/iomgr/iomgr_windows.c
index 1477551..af7e616 100644
--- a/src/core/iomgr/iomgr_windows.c
+++ b/src/core/lib/iomgr/iomgr_windows.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,13 +35,13 @@
 
 #ifdef GPR_WINSOCK_SOCKET
 
-#include "src/core/iomgr/sockaddr_win32.h"
+#include "src/core/lib/iomgr/sockaddr_win32.h"
 
 #include <grpc/support/log.h>
 
-#include "src/core/iomgr/socket_windows.h"
-#include "src/core/iomgr/iocp_windows.h"
-#include "src/core/iomgr/iomgr.h"
+#include "src/core/lib/iomgr/iocp_windows.h"
+#include "src/core/lib/iomgr/iomgr.h"
+#include "src/core/lib/iomgr/socket_windows.h"
 
 /* Windows' io manager is going to be fully designed using IO completion
    ports. All of what we're doing here is basically make sure that
diff --git a/src/core/iomgr/pollset.h b/src/core/lib/iomgr/pollset.h
similarity index 95%
rename from src/core/iomgr/pollset.h
rename to src/core/lib/iomgr/pollset.h
index 9500b1a..6156124 100644
--- a/src/core/iomgr/pollset.h
+++ b/src/core/lib/iomgr/pollset.h
@@ -31,14 +31,14 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_POLLSET_H
-#define GRPC_CORE_IOMGR_POLLSET_H
+#ifndef GRPC_CORE_LIB_IOMGR_POLLSET_H
+#define GRPC_CORE_LIB_IOMGR_POLLSET_H
 
 #include <grpc/support/port_platform.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/time.h>
 
-#include "src/core/iomgr/exec_ctx.h"
+#include "src/core/lib/iomgr/exec_ctx.h"
 
 #define GRPC_POLLSET_KICK_BROADCAST ((grpc_pollset_worker *)1)
 
@@ -91,4 +91,4 @@
 void grpc_pollset_kick(grpc_pollset *pollset,
                        grpc_pollset_worker *specific_worker);
 
-#endif /* GRPC_CORE_IOMGR_POLLSET_H */
+#endif /* GRPC_CORE_LIB_IOMGR_POLLSET_H */
diff --git a/src/core/iomgr/pollset_set.h b/src/core/lib/iomgr/pollset_set.h
similarity index 93%
rename from src/core/iomgr/pollset_set.h
rename to src/core/lib/iomgr/pollset_set.h
index 204c625..fb29d69 100644
--- a/src/core/iomgr/pollset_set.h
+++ b/src/core/lib/iomgr/pollset_set.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_POLLSET_SET_H
-#define GRPC_CORE_IOMGR_POLLSET_SET_H
+#ifndef GRPC_CORE_LIB_IOMGR_POLLSET_SET_H
+#define GRPC_CORE_LIB_IOMGR_POLLSET_SET_H
 
-#include "src/core/iomgr/pollset.h"
+#include "src/core/lib/iomgr/pollset.h"
 
 /* A grpc_pollset_set is a set of pollsets that are interested in an
    action. Adding a pollset to a pollset_set automatically adds any
@@ -58,4 +58,4 @@
                                       grpc_pollset_set *bag,
                                       grpc_pollset_set *item);
 
-#endif /* GRPC_CORE_IOMGR_POLLSET_SET_H */
+#endif /* GRPC_CORE_LIB_IOMGR_POLLSET_SET_H */
diff --git a/src/core/iomgr/pollset_set_windows.c b/src/core/lib/iomgr/pollset_set_windows.c
similarity index 97%
rename from src/core/iomgr/pollset_set_windows.c
rename to src/core/lib/iomgr/pollset_set_windows.c
index 3b8eca2..0b14e44 100644
--- a/src/core/iomgr/pollset_set_windows.c
+++ b/src/core/lib/iomgr/pollset_set_windows.c
@@ -35,7 +35,7 @@
 
 #ifdef GPR_WINSOCK_SOCKET
 
-#include "src/core/iomgr/pollset_set_windows.h"
+#include "src/core/lib/iomgr/pollset_set_windows.h"
 
 grpc_pollset_set* grpc_pollset_set_create(pollset_set) { return NULL; }
 
diff --git a/src/core/iomgr/workqueue_windows.h b/src/core/lib/iomgr/pollset_set_windows.h
similarity index 88%
copy from src/core/iomgr/workqueue_windows.h
copy to src/core/lib/iomgr/pollset_set_windows.h
index 7e81869..7c2cea2 100644
--- a/src/core/iomgr/workqueue_windows.h
+++ b/src/core/lib/iomgr/pollset_set_windows.h
@@ -31,7 +31,9 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_WORKQUEUE_WINDOWS_H
-#define GRPC_CORE_IOMGR_WORKQUEUE_WINDOWS_H
+#ifndef GRPC_CORE_LIB_IOMGR_POLLSET_SET_WINDOWS_H
+#define GRPC_CORE_LIB_IOMGR_POLLSET_SET_WINDOWS_H
 
-#endif /* GRPC_CORE_IOMGR_WORKQUEUE_WINDOWS_H */
+#include "src/core/lib/iomgr/pollset_set.h"
+
+#endif /* GRPC_CORE_LIB_IOMGR_POLLSET_SET_WINDOWS_H */
diff --git a/src/core/iomgr/pollset_windows.c b/src/core/lib/iomgr/pollset_windows.c
similarity index 97%
rename from src/core/iomgr/pollset_windows.c
rename to src/core/lib/iomgr/pollset_windows.c
index c7f30f4..6b33912 100644
--- a/src/core/iomgr/pollset_windows.c
+++ b/src/core/lib/iomgr/pollset_windows.c
@@ -38,10 +38,10 @@
 #include <grpc/support/log.h>
 #include <grpc/support/thd.h>
 
-#include "src/core/iomgr/iomgr_internal.h"
-#include "src/core/iomgr/iocp_windows.h"
-#include "src/core/iomgr/pollset.h"
-#include "src/core/iomgr/pollset_windows.h"
+#include "src/core/lib/iomgr/iocp_windows.h"
+#include "src/core/lib/iomgr/iomgr_internal.h"
+#include "src/core/lib/iomgr/pollset.h"
+#include "src/core/lib/iomgr/pollset_windows.h"
 
 gpr_mu grpc_polling_mu;
 static grpc_pollset_worker *g_active_poller;
diff --git a/src/core/iomgr/pollset_windows.h b/src/core/lib/iomgr/pollset_windows.h
similarity index 92%
rename from src/core/iomgr/pollset_windows.h
rename to src/core/lib/iomgr/pollset_windows.h
index f1d1585..fa9553f 100644
--- a/src/core/iomgr/pollset_windows.h
+++ b/src/core/lib/iomgr/pollset_windows.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_POLLSET_WINDOWS_H
-#define GRPC_CORE_IOMGR_POLLSET_WINDOWS_H
+#ifndef GRPC_CORE_LIB_IOMGR_POLLSET_WINDOWS_H
+#define GRPC_CORE_LIB_IOMGR_POLLSET_WINDOWS_H
 
 #include <grpc/support/sync.h>
 
-#include "src/core/iomgr/socket_windows.h"
+#include "src/core/lib/iomgr/socket_windows.h"
 
 /* There isn't really any such thing as a pollset under Windows, due to the
    nature of the IO completion ports. A Windows "pollset" is merely a mutex
@@ -72,4 +72,4 @@
   grpc_closure *on_shutdown;
 };
 
-#endif /* GRPC_CORE_IOMGR_POLLSET_WINDOWS_H */
+#endif /* GRPC_CORE_LIB_IOMGR_POLLSET_WINDOWS_H */
diff --git a/src/core/iomgr/resolve_address.h b/src/core/lib/iomgr/resolve_address.h
similarity index 92%
rename from src/core/iomgr/resolve_address.h
rename to src/core/lib/iomgr/resolve_address.h
index aa0d7d1..f748288 100644
--- a/src/core/iomgr/resolve_address.h
+++ b/src/core/lib/iomgr/resolve_address.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_RESOLVE_ADDRESS_H
-#define GRPC_CORE_IOMGR_RESOLVE_ADDRESS_H
+#ifndef GRPC_CORE_LIB_IOMGR_RESOLVE_ADDRESS_H
+#define GRPC_CORE_LIB_IOMGR_RESOLVE_ADDRESS_H
 
 #include <stddef.h>
-#include "src/core/iomgr/exec_ctx.h"
-#include "src/core/iomgr/iomgr.h"
+#include "src/core/lib/iomgr/exec_ctx.h"
+#include "src/core/lib/iomgr/iomgr.h"
 
 #define GRPC_MAX_SOCKADDR_SIZE 128
 
@@ -69,4 +69,4 @@
 extern grpc_resolved_addresses *(*grpc_blocking_resolve_address)(
     const char *name, const char *default_port);
 
-#endif /* GRPC_CORE_IOMGR_RESOLVE_ADDRESS_H */
+#endif /* GRPC_CORE_LIB_IOMGR_RESOLVE_ADDRESS_H */
diff --git a/src/core/iomgr/resolve_address_posix.c b/src/core/lib/iomgr/resolve_address_posix.c
similarity index 88%
rename from src/core/iomgr/resolve_address_posix.c
rename to src/core/lib/iomgr/resolve_address_posix.c
index a6c9893..ebecb39 100644
--- a/src/core/iomgr/resolve_address_posix.c
+++ b/src/core/lib/iomgr/resolve_address_posix.c
@@ -34,12 +34,11 @@
 #include <grpc/support/port_platform.h>
 #ifdef GPR_POSIX_SOCKET
 
-#include "src/core/iomgr/resolve_address.h"
-#include "src/core/iomgr/sockaddr.h"
+#include "src/core/lib/iomgr/resolve_address.h"
+#include "src/core/lib/iomgr/sockaddr.h"
 
 #include <string.h>
 #include <sys/types.h>
-#include <sys/un.h>
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/host_port.h>
@@ -48,11 +47,12 @@
 #include <grpc/support/thd.h>
 #include <grpc/support/time.h>
 #include <grpc/support/useful.h>
-#include "src/core/iomgr/executor.h"
-#include "src/core/iomgr/iomgr_internal.h"
-#include "src/core/iomgr/sockaddr_utils.h"
-#include "src/core/support/block_annotate.h"
-#include "src/core/support/string.h"
+#include "src/core/lib/iomgr/executor.h"
+#include "src/core/lib/iomgr/iomgr_internal.h"
+#include "src/core/lib/iomgr/sockaddr_utils.h"
+#include "src/core/lib/iomgr/unix_sockets_posix.h"
+#include "src/core/lib/support/block_annotate.h"
+#include "src/core/lib/support/string.h"
 
 typedef struct {
   char *name;
@@ -71,18 +71,10 @@
   int s;
   size_t i;
   grpc_resolved_addresses *addrs = NULL;
-  struct sockaddr_un *un;
 
   if (name[0] == 'u' && name[1] == 'n' && name[2] == 'i' && name[3] == 'x' &&
       name[4] == ':' && name[5] != 0) {
-    addrs = gpr_malloc(sizeof(grpc_resolved_addresses));
-    addrs->naddrs = 1;
-    addrs->addrs = gpr_malloc(sizeof(grpc_resolved_address));
-    un = (struct sockaddr_un *)addrs->addrs->addr;
-    un->sun_family = AF_UNIX;
-    strcpy(un->sun_path, name + 5);
-    addrs->addrs->len = strlen(un->sun_path) + sizeof(un->sun_family) + 1;
-    return addrs;
+    return grpc_resolve_unix_domain_address(name + 5);
   }
 
   /* parse name, splitting it into host and port parts */
diff --git a/src/core/iomgr/resolve_address_windows.c b/src/core/lib/iomgr/resolve_address_windows.c
similarity index 93%
rename from src/core/iomgr/resolve_address_windows.c
rename to src/core/lib/iomgr/resolve_address_windows.c
index 472e797..bde1f1b 100644
--- a/src/core/iomgr/resolve_address_windows.c
+++ b/src/core/lib/iomgr/resolve_address_windows.c
@@ -34,8 +34,8 @@
 #include <grpc/support/port_platform.h>
 #ifdef GPR_WINSOCK_SOCKET
 
-#include "src/core/iomgr/resolve_address.h"
-#include "src/core/iomgr/sockaddr.h"
+#include "src/core/lib/iomgr/resolve_address.h"
+#include "src/core/lib/iomgr/sockaddr.h"
 
 #include <string.h>
 #include <sys/types.h>
@@ -47,11 +47,11 @@
 #include <grpc/support/string_util.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/time.h>
-#include "src/core/iomgr/executor.h"
-#include "src/core/iomgr/iomgr_internal.h"
-#include "src/core/iomgr/sockaddr_utils.h"
-#include "src/core/support/block_annotate.h"
-#include "src/core/support/string.h"
+#include "src/core/lib/iomgr/executor.h"
+#include "src/core/lib/iomgr/iomgr_internal.h"
+#include "src/core/lib/iomgr/sockaddr_utils.h"
+#include "src/core/lib/support/block_annotate.h"
+#include "src/core/lib/support/string.h"
 
 typedef struct {
   char *name;
diff --git a/src/core/iomgr/sockaddr.h b/src/core/lib/iomgr/sockaddr.h
similarity index 88%
rename from src/core/iomgr/sockaddr.h
rename to src/core/lib/iomgr/sockaddr.h
index 68241bd..66a930e 100644
--- a/src/core/iomgr/sockaddr.h
+++ b/src/core/lib/iomgr/sockaddr.h
@@ -31,17 +31,17 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_SOCKADDR_H
-#define GRPC_CORE_IOMGR_SOCKADDR_H
+#ifndef GRPC_CORE_LIB_IOMGR_SOCKADDR_H
+#define GRPC_CORE_LIB_IOMGR_SOCKADDR_H
 
 #include <grpc/support/port_platform.h>
 
 #ifdef GPR_WIN32
-#include "src/core/iomgr/sockaddr_win32.h"
+#include "src/core/lib/iomgr/sockaddr_win32.h"
 #endif
 
 #ifdef GPR_POSIX_SOCKETADDR
-#include "src/core/iomgr/sockaddr_posix.h"
+#include "src/core/lib/iomgr/sockaddr_posix.h"
 #endif
 
-#endif /* GRPC_CORE_IOMGR_SOCKADDR_H */
+#endif /* GRPC_CORE_LIB_IOMGR_SOCKADDR_H */
diff --git a/src/core/iomgr/sockaddr_posix.h b/src/core/lib/iomgr/sockaddr_posix.h
similarity index 92%
rename from src/core/iomgr/sockaddr_posix.h
rename to src/core/lib/iomgr/sockaddr_posix.h
index e4425ed..79a7467 100644
--- a/src/core/iomgr/sockaddr_posix.h
+++ b/src/core/lib/iomgr/sockaddr_posix.h
@@ -31,14 +31,14 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_SOCKADDR_POSIX_H
-#define GRPC_CORE_IOMGR_SOCKADDR_POSIX_H
+#ifndef GRPC_CORE_LIB_IOMGR_SOCKADDR_POSIX_H
+#define GRPC_CORE_LIB_IOMGR_SOCKADDR_POSIX_H
 
 #include <arpa/inet.h>
+#include <netdb.h>
+#include <netinet/in.h>
 #include <sys/socket.h>
 #include <sys/types.h>
-#include <netinet/in.h>
-#include <netdb.h>
 #include <unistd.h>
 
-#endif /* GRPC_CORE_IOMGR_SOCKADDR_POSIX_H */
+#endif /* GRPC_CORE_LIB_IOMGR_SOCKADDR_POSIX_H */
diff --git a/src/core/iomgr/sockaddr_utils.c b/src/core/lib/iomgr/sockaddr_utils.c
similarity index 95%
rename from src/core/iomgr/sockaddr_utils.c
rename to src/core/lib/iomgr/sockaddr_utils.c
index 61006d7..127d95c 100644
--- a/src/core/iomgr/sockaddr_utils.c
+++ b/src/core/lib/iomgr/sockaddr_utils.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,22 +31,19 @@
  *
  */
 
-#include "src/core/iomgr/sockaddr_utils.h"
+#include "src/core/lib/iomgr/sockaddr_utils.h"
 
 #include <errno.h>
 #include <string.h>
 
-#ifdef GPR_POSIX_SOCKET
-#include <sys/un.h>
-#endif
-
 #include <grpc/support/alloc.h>
 #include <grpc/support/host_port.h>
 #include <grpc/support/log.h>
 #include <grpc/support/port_platform.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/support/string.h"
+#include "src/core/lib/iomgr/unix_sockets_posix.h"
+#include "src/core/lib/support/string.h"
 
 static const uint8_t kV4MappedPrefix[] = {0, 0, 0, 0, 0,    0,
                                           0, 0, 0, 0, 0xff, 0xff};
@@ -191,14 +188,9 @@
       gpr_asprintf(&result, "ipv6:%s", temp);
       gpr_free(temp);
       return result;
-#ifdef GPR_POSIX_SOCKET
-    case AF_UNIX:
-      gpr_asprintf(&result, "unix:%s", ((struct sockaddr_un *)addr)->sun_path);
-      return result;
-#endif
+    default:
+      return grpc_sockaddr_to_uri_unix_if_possible(addr);
   }
-
-  return NULL;
 }
 
 int grpc_sockaddr_get_port(const struct sockaddr *addr) {
@@ -207,9 +199,10 @@
       return ntohs(((struct sockaddr_in *)addr)->sin_port);
     case AF_INET6:
       return ntohs(((struct sockaddr_in6 *)addr)->sin6_port);
-    case AF_UNIX:
-      return 1;
     default:
+      if (grpc_is_unix_socket(addr)) {
+        return 1;
+      }
       gpr_log(GPR_ERROR, "Unknown socket family %d in grpc_sockaddr_get_port",
               addr->sa_family);
       return 0;
diff --git a/src/core/iomgr/sockaddr_utils.h b/src/core/lib/iomgr/sockaddr_utils.h
similarity index 95%
rename from src/core/iomgr/sockaddr_utils.h
rename to src/core/lib/iomgr/sockaddr_utils.h
index 43dc7a4..20a3e3b 100644
--- a/src/core/iomgr/sockaddr_utils.h
+++ b/src/core/lib/iomgr/sockaddr_utils.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_SOCKADDR_UTILS_H
-#define GRPC_CORE_IOMGR_SOCKADDR_UTILS_H
+#ifndef GRPC_CORE_LIB_IOMGR_SOCKADDR_UTILS_H
+#define GRPC_CORE_LIB_IOMGR_SOCKADDR_UTILS_H
 
-#include "src/core/iomgr/sockaddr.h"
+#include "src/core/lib/iomgr/sockaddr.h"
 
 /* Returns true if addr is an IPv4-mapped IPv6 address within the
    ::ffff:0.0.0.0/96 range, or false otherwise.
@@ -86,4 +86,4 @@
 
 char *grpc_sockaddr_to_uri(const struct sockaddr *addr);
 
-#endif /* GRPC_CORE_IOMGR_SOCKADDR_UTILS_H */
+#endif /* GRPC_CORE_LIB_IOMGR_SOCKADDR_UTILS_H */
diff --git a/src/core/iomgr/sockaddr_win32.h b/src/core/lib/iomgr/sockaddr_win32.h
similarity index 90%
rename from src/core/iomgr/sockaddr_win32.h
rename to src/core/lib/iomgr/sockaddr_win32.h
index 7acb8f7..2dd7111 100644
--- a/src/core/iomgr/sockaddr_win32.h
+++ b/src/core/lib/iomgr/sockaddr_win32.h
@@ -31,11 +31,13 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_SOCKADDR_WIN32_H
-#define GRPC_CORE_IOMGR_SOCKADDR_WIN32_H
+#ifndef GRPC_CORE_LIB_IOMGR_SOCKADDR_WIN32_H
+#define GRPC_CORE_LIB_IOMGR_SOCKADDR_WIN32_H
 
 #include <winsock2.h>
 #include <ws2tcpip.h>
+
+// must be included after the above
 #include <mswsock.h>
 
-#endif /* GRPC_CORE_IOMGR_SOCKADDR_WIN32_H */
+#endif /* GRPC_CORE_LIB_IOMGR_SOCKADDR_WIN32_H */
diff --git a/src/core/iomgr/socket_utils_common_posix.c b/src/core/lib/iomgr/socket_utils_common_posix.c
similarity index 96%
rename from src/core/iomgr/socket_utils_common_posix.c
rename to src/core/lib/iomgr/socket_utils_common_posix.c
index a9af594..9dbc278 100644
--- a/src/core/iomgr/socket_utils_common_posix.c
+++ b/src/core/lib/iomgr/socket_utils_common_posix.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,26 +35,26 @@
 
 #ifdef GPR_POSIX_SOCKET
 
-#include "src/core/iomgr/socket_utils_posix.h"
+#include "src/core/lib/iomgr/socket_utils_posix.h"
 
 #include <arpa/inet.h>
-#include <limits.h>
+#include <errno.h>
 #include <fcntl.h>
+#include <limits.h>
 #include <netinet/in.h>
 #include <netinet/tcp.h>
 #include <stdio.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <unistd.h>
 #include <string.h>
-#include <errno.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <unistd.h>
 
-#include "src/core/iomgr/sockaddr_utils.h"
-#include "src/core/support/string.h"
 #include <grpc/support/host_port.h>
 #include <grpc/support/log.h>
 #include <grpc/support/port_platform.h>
 #include <grpc/support/sync.h>
+#include "src/core/lib/iomgr/sockaddr_utils.h"
+#include "src/core/lib/support/string.h"
 
 /* set a socket to non blocking mode */
 int grpc_set_socket_nonblocking(int fd, int non_blocking) {
diff --git a/src/core/iomgr/socket_utils_linux.c b/src/core/lib/iomgr/socket_utils_linux.c
similarity index 95%
rename from src/core/iomgr/socket_utils_linux.c
rename to src/core/lib/iomgr/socket_utils_linux.c
index a876252..e7dfe89 100644
--- a/src/core/iomgr/socket_utils_linux.c
+++ b/src/core/lib/iomgr/socket_utils_linux.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,10 +35,10 @@
 
 #ifdef GPR_LINUX_SOCKETUTILS
 
-#include "src/core/iomgr/socket_utils_posix.h"
+#include "src/core/lib/iomgr/socket_utils_posix.h"
 
-#include <sys/types.h>
 #include <sys/socket.h>
+#include <sys/types.h>
 
 int grpc_accept4(int sockfd, struct sockaddr *addr, socklen_t *addrlen,
                  int nonblock, int cloexec) {
diff --git a/src/core/iomgr/socket_utils_posix.c b/src/core/lib/iomgr/socket_utils_posix.c
similarity index 96%
rename from src/core/iomgr/socket_utils_posix.c
rename to src/core/lib/iomgr/socket_utils_posix.c
index 3c56b46..b2fa00c 100644
--- a/src/core/iomgr/socket_utils_posix.c
+++ b/src/core/lib/iomgr/socket_utils_posix.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,7 +35,7 @@
 
 #ifdef GPR_POSIX_SOCKETUTILS
 
-#include "src/core/iomgr/socket_utils_posix.h"
+#include "src/core/lib/iomgr/socket_utils_posix.h"
 
 #include <fcntl.h>
 #include <sys/socket.h>
diff --git a/src/core/iomgr/socket_utils_posix.h b/src/core/lib/iomgr/socket_utils_posix.h
similarity index 96%
rename from src/core/iomgr/socket_utils_posix.h
rename to src/core/lib/iomgr/socket_utils_posix.h
index b01e28b..063f298 100644
--- a/src/core/iomgr/socket_utils_posix.h
+++ b/src/core/lib/iomgr/socket_utils_posix.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_SOCKET_UTILS_POSIX_H
-#define GRPC_CORE_IOMGR_SOCKET_UTILS_POSIX_H
+#ifndef GRPC_CORE_LIB_IOMGR_SOCKET_UTILS_POSIX_H
+#define GRPC_CORE_LIB_IOMGR_SOCKET_UTILS_POSIX_H
 
-#include <unistd.h>
 #include <sys/socket.h>
+#include <unistd.h>
 
 /* a wrapper for accept or accept4 */
 int grpc_accept4(int sockfd, struct sockaddr *addr, socklen_t *addrlen,
@@ -110,4 +110,4 @@
 int grpc_create_dualstack_socket(const struct sockaddr *addr, int type,
                                  int protocol, grpc_dualstack_mode *dsmode);
 
-#endif /* GRPC_CORE_IOMGR_SOCKET_UTILS_POSIX_H */
+#endif /* GRPC_CORE_LIB_IOMGR_SOCKET_UTILS_POSIX_H */
diff --git a/src/core/iomgr/socket_windows.c b/src/core/lib/iomgr/socket_windows.c
similarity index 91%
rename from src/core/iomgr/socket_windows.c
rename to src/core/lib/iomgr/socket_windows.c
index fafb7b6..1023a6d 100644
--- a/src/core/iomgr/socket_windows.c
+++ b/src/core/lib/iomgr/socket_windows.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -36,6 +36,8 @@
 #ifdef GPR_WINSOCK_SOCKET
 
 #include <winsock2.h>
+
+// must be included after winsock2.h
 #include <mswsock.h>
 
 #include <grpc/support/alloc.h>
@@ -43,11 +45,11 @@
 #include <grpc/support/log_win32.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/iomgr/iocp_windows.h"
-#include "src/core/iomgr/iomgr_internal.h"
-#include "src/core/iomgr/pollset.h"
-#include "src/core/iomgr/pollset_windows.h"
-#include "src/core/iomgr/socket_windows.h"
+#include "src/core/lib/iomgr/iocp_windows.h"
+#include "src/core/lib/iomgr/iomgr_internal.h"
+#include "src/core/lib/iomgr/pollset.h"
+#include "src/core/lib/iomgr/pollset_windows.h"
+#include "src/core/lib/iomgr/socket_windows.h"
 
 grpc_winsocket *grpc_winsocket_create(SOCKET socket, const char *name) {
   char *final_name;
diff --git a/src/core/iomgr/socket_windows.h b/src/core/lib/iomgr/socket_windows.h
similarity index 95%
rename from src/core/iomgr/socket_windows.h
rename to src/core/lib/iomgr/socket_windows.h
index 8e50e7a..7444789 100644
--- a/src/core/iomgr/socket_windows.h
+++ b/src/core/lib/iomgr/socket_windows.h
@@ -31,17 +31,17 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_SOCKET_WINDOWS_H
-#define GRPC_CORE_IOMGR_SOCKET_WINDOWS_H
+#ifndef GRPC_CORE_LIB_IOMGR_SOCKET_WINDOWS_H
+#define GRPC_CORE_LIB_IOMGR_SOCKET_WINDOWS_H
 
 #include <grpc/support/port_platform.h>
 #include <winsock2.h>
 
-#include <grpc/support/sync.h>
 #include <grpc/support/atm.h>
+#include <grpc/support/sync.h>
 
-#include "src/core/iomgr/iomgr_internal.h"
-#include "src/core/iomgr/exec_ctx.h"
+#include "src/core/lib/iomgr/exec_ctx.h"
+#include "src/core/lib/iomgr/iomgr_internal.h"
 
 /* This holds the data for an outstanding read or write on a socket.
    The mutex to protect the concurrent access to that data is the one
@@ -108,4 +108,4 @@
 /* Destroy a socket. Should only be called if there's no pending operation. */
 void grpc_winsocket_destroy(grpc_winsocket *socket);
 
-#endif /* GRPC_CORE_IOMGR_SOCKET_WINDOWS_H */
+#endif /* GRPC_CORE_LIB_IOMGR_SOCKET_WINDOWS_H */
diff --git a/src/core/iomgr/tcp_client.h b/src/core/lib/iomgr/tcp_client.h
similarity index 89%
rename from src/core/iomgr/tcp_client.h
rename to src/core/lib/iomgr/tcp_client.h
index 2e29833..6bbe264 100644
--- a/src/core/iomgr/tcp_client.h
+++ b/src/core/lib/iomgr/tcp_client.h
@@ -31,13 +31,13 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_TCP_CLIENT_H
-#define GRPC_CORE_IOMGR_TCP_CLIENT_H
+#ifndef GRPC_CORE_LIB_IOMGR_TCP_CLIENT_H
+#define GRPC_CORE_LIB_IOMGR_TCP_CLIENT_H
 
-#include "src/core/iomgr/endpoint.h"
-#include "src/core/iomgr/pollset_set.h"
-#include "src/core/iomgr/sockaddr.h"
 #include <grpc/support/time.h>
+#include "src/core/lib/iomgr/endpoint.h"
+#include "src/core/lib/iomgr/pollset_set.h"
+#include "src/core/lib/iomgr/sockaddr.h"
 
 /* Asynchronously connect to an address (specified as (addr, len)), and call
    cb with arg and the completed connection when done (or call cb with arg and
@@ -50,4 +50,4 @@
                              const struct sockaddr *addr, size_t addr_len,
                              gpr_timespec deadline);
 
-#endif /* GRPC_CORE_IOMGR_TCP_CLIENT_H */
+#endif /* GRPC_CORE_LIB_IOMGR_TCP_CLIENT_H */
diff --git a/src/core/iomgr/tcp_client_posix.c b/src/core/lib/iomgr/tcp_client_posix.c
similarity index 94%
rename from src/core/iomgr/tcp_client_posix.c
rename to src/core/lib/iomgr/tcp_client_posix.c
index f940eb5..5f948d0 100644
--- a/src/core/iomgr/tcp_client_posix.c
+++ b/src/core/lib/iomgr/tcp_client_posix.c
@@ -35,7 +35,7 @@
 
 #ifdef GPR_POSIX_SOCKET
 
-#include "src/core/iomgr/tcp_client.h"
+#include "src/core/lib/iomgr/tcp_client.h"
 
 #include <errno.h>
 #include <netinet/in.h>
@@ -47,13 +47,14 @@
 #include <grpc/support/string_util.h>
 #include <grpc/support/time.h>
 
-#include "src/core/iomgr/ev_posix.h"
-#include "src/core/iomgr/iomgr_posix.h"
-#include "src/core/iomgr/sockaddr_utils.h"
-#include "src/core/iomgr/socket_utils_posix.h"
-#include "src/core/iomgr/tcp_posix.h"
-#include "src/core/iomgr/timer.h"
-#include "src/core/support/string.h"
+#include "src/core/lib/iomgr/ev_posix.h"
+#include "src/core/lib/iomgr/iomgr_posix.h"
+#include "src/core/lib/iomgr/sockaddr_utils.h"
+#include "src/core/lib/iomgr/socket_utils_posix.h"
+#include "src/core/lib/iomgr/tcp_posix.h"
+#include "src/core/lib/iomgr/timer.h"
+#include "src/core/lib/iomgr/unix_sockets_posix.h"
+#include "src/core/lib/support/string.h"
 
 extern int grpc_tcp_trace;
 
@@ -76,13 +77,12 @@
   }
 
   if (!grpc_set_socket_nonblocking(fd, 1) || !grpc_set_socket_cloexec(fd, 1) ||
-      (addr->sa_family != AF_UNIX && !grpc_set_socket_low_latency(fd, 1)) ||
+      (!grpc_is_unix_socket(addr) && !grpc_set_socket_low_latency(fd, 1)) ||
       !grpc_set_socket_no_sigpipe_if_possible(fd)) {
     gpr_log(GPR_ERROR, "Unable to configure socket %d: %s", fd,
             strerror(errno));
     goto error;
   }
-
   return 1;
 
 error:
diff --git a/src/core/iomgr/tcp_client_windows.c b/src/core/lib/iomgr/tcp_client_windows.c
similarity index 94%
rename from src/core/iomgr/tcp_client_windows.c
rename to src/core/lib/iomgr/tcp_client_windows.c
index 689c6f7..86b8d58 100644
--- a/src/core/iomgr/tcp_client_windows.c
+++ b/src/core/lib/iomgr/tcp_client_windows.c
@@ -35,7 +35,7 @@
 
 #ifdef GPR_WINSOCK_SOCKET
 
-#include "src/core/iomgr/sockaddr_win32.h"
+#include "src/core/lib/iomgr/sockaddr_win32.h"
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
@@ -43,13 +43,13 @@
 #include <grpc/support/slice_buffer.h>
 #include <grpc/support/useful.h>
 
-#include "src/core/iomgr/timer.h"
-#include "src/core/iomgr/iocp_windows.h"
-#include "src/core/iomgr/tcp_client.h"
-#include "src/core/iomgr/tcp_windows.h"
-#include "src/core/iomgr/sockaddr.h"
-#include "src/core/iomgr/sockaddr_utils.h"
-#include "src/core/iomgr/socket_windows.h"
+#include "src/core/lib/iomgr/iocp_windows.h"
+#include "src/core/lib/iomgr/sockaddr.h"
+#include "src/core/lib/iomgr/sockaddr_utils.h"
+#include "src/core/lib/iomgr/socket_windows.h"
+#include "src/core/lib/iomgr/tcp_client.h"
+#include "src/core/lib/iomgr/tcp_windows.h"
+#include "src/core/lib/iomgr/timer.h"
 
 typedef struct {
   grpc_closure *on_done;
diff --git a/src/core/iomgr/tcp_posix.c b/src/core/lib/iomgr/tcp_posix.c
similarity index 97%
rename from src/core/iomgr/tcp_posix.c
rename to src/core/lib/iomgr/tcp_posix.c
index f707e2b..64ccaf9 100644
--- a/src/core/iomgr/tcp_posix.c
+++ b/src/core/lib/iomgr/tcp_posix.c
@@ -35,7 +35,7 @@
 
 #ifdef GPR_POSIX_SOCKET
 
-#include "src/core/iomgr/tcp_posix.h"
+#include "src/core/lib/iomgr/tcp_posix.h"
 
 #include <errno.h>
 #include <stdlib.h>
@@ -51,10 +51,10 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/time.h>
 
-#include "src/core/debug/trace.h"
-#include "src/core/iomgr/ev_posix.h"
-#include "src/core/profiling/timers.h"
-#include "src/core/support/string.h"
+#include "src/core/lib/debug/trace.h"
+#include "src/core/lib/iomgr/ev_posix.h"
+#include "src/core/lib/profiling/timers.h"
+#include "src/core/lib/support/string.h"
 
 #ifdef GPR_HAVE_MSG_NOSIGNAL
 #define SENDMSG_FLAGS MSG_NOSIGNAL
@@ -296,7 +296,7 @@
     unwind_slice_idx = tcp->outgoing_slice_idx;
     unwind_byte_idx = tcp->outgoing_byte_idx;
     for (iov_size = 0; tcp->outgoing_slice_idx != tcp->outgoing_buffer->count &&
-                           iov_size != MAX_WRITE_IOVEC;
+                       iov_size != MAX_WRITE_IOVEC;
          iov_size++) {
       iov[iov_size].iov_base =
           GPR_SLICE_START_PTR(
@@ -445,7 +445,7 @@
 }
 
 static const grpc_endpoint_vtable vtable = {
-    tcp_read, tcp_write, tcp_add_to_pollset, tcp_add_to_pollset_set,
+    tcp_read,     tcp_write,   tcp_add_to_pollset, tcp_add_to_pollset_set,
     tcp_shutdown, tcp_destroy, tcp_get_peer};
 
 grpc_endpoint *grpc_tcp_create(grpc_fd *em_fd, size_t slice_size,
diff --git a/src/core/iomgr/tcp_posix.h b/src/core/lib/iomgr/tcp_posix.h
similarity index 92%
rename from src/core/iomgr/tcp_posix.h
rename to src/core/lib/iomgr/tcp_posix.h
index 2dc81b0..c9b70aa 100644
--- a/src/core/iomgr/tcp_posix.h
+++ b/src/core/lib/iomgr/tcp_posix.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_TCP_POSIX_H
-#define GRPC_CORE_IOMGR_TCP_POSIX_H
+#ifndef GRPC_CORE_LIB_IOMGR_TCP_POSIX_H
+#define GRPC_CORE_LIB_IOMGR_TCP_POSIX_H
 /*
    Low level TCP "bottom half" implementation, for use by transports built on
    top of a TCP connection.
@@ -44,8 +44,8 @@
    otherwise specified.
 */
 
-#include "src/core/iomgr/endpoint.h"
-#include "src/core/iomgr/ev_posix.h"
+#include "src/core/lib/iomgr/endpoint.h"
+#include "src/core/lib/iomgr/ev_posix.h"
 
 #define GRPC_TCP_DEFAULT_READ_SLICE_SIZE 8192
 
@@ -68,4 +68,4 @@
 void grpc_tcp_destroy_and_release_fd(grpc_exec_ctx *exec_ctx, grpc_endpoint *ep,
                                      int *fd, grpc_closure *done);
 
-#endif /* GRPC_CORE_IOMGR_TCP_POSIX_H */
+#endif /* GRPC_CORE_LIB_IOMGR_TCP_POSIX_H */
diff --git a/src/core/iomgr/tcp_server.h b/src/core/lib/iomgr/tcp_server.h
similarity index 95%
rename from src/core/iomgr/tcp_server.h
rename to src/core/lib/iomgr/tcp_server.h
index 93247e9..81edb61 100644
--- a/src/core/iomgr/tcp_server.h
+++ b/src/core/lib/iomgr/tcp_server.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_TCP_SERVER_H
-#define GRPC_CORE_IOMGR_TCP_SERVER_H
+#ifndef GRPC_CORE_LIB_IOMGR_TCP_SERVER_H
+#define GRPC_CORE_LIB_IOMGR_TCP_SERVER_H
 
-#include "src/core/iomgr/closure.h"
-#include "src/core/iomgr/endpoint.h"
+#include "src/core/lib/iomgr/closure.h"
+#include "src/core/lib/iomgr/endpoint.h"
 
 /* Forward decl of grpc_tcp_server */
 typedef struct grpc_tcp_server grpc_tcp_server;
@@ -100,4 +100,4 @@
    a call (exec_ctx!=NULL) to shutdown_complete. */
 void grpc_tcp_server_unref(grpc_exec_ctx *exec_ctx, grpc_tcp_server *s);
 
-#endif /* GRPC_CORE_IOMGR_TCP_SERVER_H */
+#endif /* GRPC_CORE_LIB_IOMGR_TCP_SERVER_H */
diff --git a/src/core/iomgr/tcp_server_posix.c b/src/core/lib/iomgr/tcp_server_posix.c
similarity index 93%
rename from src/core/iomgr/tcp_server_posix.c
rename to src/core/lib/iomgr/tcp_server_posix.c
index e8696ac..313ec22 100644
--- a/src/core/iomgr/tcp_server_posix.c
+++ b/src/core/lib/iomgr/tcp_server_posix.c
@@ -40,7 +40,7 @@
 
 #ifdef GPR_POSIX_SOCKET
 
-#include "src/core/iomgr/tcp_server.h"
+#include "src/core/lib/iomgr/tcp_server.h"
 
 #include <errno.h>
 #include <fcntl.h>
@@ -52,7 +52,6 @@
 #include <sys/socket.h>
 #include <sys/stat.h>
 #include <sys/types.h>
-#include <sys/un.h>
 #include <unistd.h>
 
 #include <grpc/support/alloc.h>
@@ -60,12 +59,12 @@
 #include <grpc/support/string_util.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/time.h>
-
-#include "src/core/iomgr/resolve_address.h"
-#include "src/core/iomgr/sockaddr_utils.h"
-#include "src/core/iomgr/socket_utils_posix.h"
-#include "src/core/iomgr/tcp_posix.h"
-#include "src/core/support/string.h"
+#include "src/core/lib/iomgr/resolve_address.h"
+#include "src/core/lib/iomgr/sockaddr_utils.h"
+#include "src/core/lib/iomgr/socket_utils_posix.h"
+#include "src/core/lib/iomgr/tcp_posix.h"
+#include "src/core/lib/iomgr/unix_sockets_posix.h"
+#include "src/core/lib/support/string.h"
 
 #define MIN_SAFE_ACCEPT_QUEUE_SIZE 100
 
@@ -81,7 +80,6 @@
   union {
     uint8_t untyped[GRPC_MAX_SOCKADDR_SIZE];
     struct sockaddr sockaddr;
-    struct sockaddr_un un;
   } addr;
   size_t addr_len;
   int port;
@@ -98,14 +96,6 @@
   int is_sibling;
 };
 
-static void unlink_if_unix_domain_socket(const struct sockaddr_un *un) {
-  struct stat st;
-
-  if (stat(un->sun_path, &st) == 0 && (st.st_mode & S_IFMT) == S_IFSOCK) {
-    unlink(un->sun_path);
-  }
-}
-
 /* the overall server */
 struct grpc_tcp_server {
   gpr_refcount refs;
@@ -203,9 +193,7 @@
   if (s->head) {
     grpc_tcp_listener *sp;
     for (sp = s->head; sp; sp = sp->next) {
-      if (sp->addr.sockaddr.sa_family == AF_UNIX) {
-        unlink_if_unix_domain_socket(&sp->addr.un);
-      }
+      grpc_unlink_if_unix_domain_socket(&sp->addr.sockaddr);
       sp->destroyed_closure.cb = destroyed_port;
       sp->destroyed_closure.cb_arg = s;
       grpc_fd_orphan(exec_ctx, sp->emfd, &sp->destroyed_closure, NULL,
@@ -281,7 +269,7 @@
   }
 
   if (!grpc_set_socket_nonblocking(fd, 1) || !grpc_set_socket_cloexec(fd, 1) ||
-      (addr->sa_family != AF_UNIX && (!grpc_set_socket_low_latency(fd, 1) ||
+      (!grpc_is_unix_socket(addr) && (!grpc_set_socket_low_latency(fd, 1) ||
                                       !grpc_set_socket_reuse_addr(fd, 1))) ||
       !grpc_set_socket_no_sigpipe_if_possible(fd)) {
     gpr_log(GPR_ERROR, "Unable to configure socket %d: %s", fd,
@@ -451,9 +439,7 @@
   if (s->tail != NULL) {
     port_index = s->tail->port_index + 1;
   }
-  if (((struct sockaddr *)addr)->sa_family == AF_UNIX) {
-    unlink_if_unix_domain_socket(addr);
-  }
+  grpc_unlink_if_unix_domain_socket((struct sockaddr *)addr);
 
   /* Check if this is a wildcard port, and if so, try to keep the port the same
      as some previously created listener. */
@@ -499,7 +485,6 @@
     /* If we didn't get a dualstack socket, also listen on 0.0.0.0. */
     if (port == 0 && sp != NULL) {
       grpc_sockaddr_set_port((struct sockaddr *)&wild4, sp->port);
-      sp2 = sp;
     }
     addr = (struct sockaddr *)&wild4;
     addr_len = sizeof(wild4);
@@ -508,16 +493,18 @@
   fd = grpc_create_dualstack_socket(addr, SOCK_STREAM, 0, &dsmode);
   if (fd < 0) {
     gpr_log(GPR_ERROR, "Unable to create socket: %s", strerror(errno));
-  }
-  if (dsmode == GRPC_DSMODE_IPV4 &&
-      grpc_sockaddr_is_v4mapped(addr, &addr4_copy)) {
-    addr = (struct sockaddr *)&addr4_copy;
-    addr_len = sizeof(addr4_copy);
-  }
-  sp = add_socket_to_server(s, fd, addr, addr_len, port_index, fd_index);
-  if (sp2 != NULL && sp != NULL) {
-    sp2->sibling = sp;
-    sp->is_sibling = 1;
+  } else {
+    if (dsmode == GRPC_DSMODE_IPV4 &&
+        grpc_sockaddr_is_v4mapped(addr, &addr4_copy)) {
+      addr = (struct sockaddr *)&addr4_copy;
+      addr_len = sizeof(addr4_copy);
+    }
+    sp2 = sp;
+    sp = add_socket_to_server(s, fd, addr, addr_len, port_index, fd_index);
+    if (sp2 != NULL && sp != NULL) {
+      sp2->sibling = sp;
+      sp->is_sibling = 1;
+    }
   }
 
 done:
diff --git a/src/core/iomgr/tcp_server_windows.c b/src/core/lib/iomgr/tcp_server_windows.c
similarity index 98%
rename from src/core/iomgr/tcp_server_windows.c
rename to src/core/lib/iomgr/tcp_server_windows.c
index a4abc5b..3d6a29b 100644
--- a/src/core/iomgr/tcp_server_windows.c
+++ b/src/core/lib/iomgr/tcp_server_windows.c
@@ -37,7 +37,7 @@
 
 #include <io.h>
 
-#include "src/core/iomgr/sockaddr_utils.h"
+#include "src/core/lib/iomgr/sockaddr_utils.h"
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
@@ -46,11 +46,11 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/time.h>
 
-#include "src/core/iomgr/iocp_windows.h"
-#include "src/core/iomgr/pollset_windows.h"
-#include "src/core/iomgr/socket_windows.h"
-#include "src/core/iomgr/tcp_server.h"
-#include "src/core/iomgr/tcp_windows.h"
+#include "src/core/lib/iomgr/iocp_windows.h"
+#include "src/core/lib/iomgr/pollset_windows.h"
+#include "src/core/lib/iomgr/socket_windows.h"
+#include "src/core/lib/iomgr/tcp_server.h"
+#include "src/core/lib/iomgr/tcp_windows.h"
 
 #define MIN_SAFE_ACCEPT_QUEUE_SIZE 100
 
diff --git a/src/core/iomgr/tcp_windows.c b/src/core/lib/iomgr/tcp_windows.c
similarity index 94%
rename from src/core/iomgr/tcp_windows.c
rename to src/core/lib/iomgr/tcp_windows.c
index 038e415..c1ce725 100644
--- a/src/core/iomgr/tcp_windows.c
+++ b/src/core/lib/iomgr/tcp_windows.c
@@ -35,7 +35,7 @@
 
 #ifdef GPR_WINSOCK_SOCKET
 
-#include "src/core/iomgr/sockaddr_win32.h"
+#include "src/core/lib/iomgr/sockaddr_win32.h"
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
@@ -44,12 +44,12 @@
 #include <grpc/support/string_util.h>
 #include <grpc/support/useful.h>
 
-#include "src/core/iomgr/timer.h"
-#include "src/core/iomgr/iocp_windows.h"
-#include "src/core/iomgr/sockaddr.h"
-#include "src/core/iomgr/sockaddr_utils.h"
-#include "src/core/iomgr/socket_windows.h"
-#include "src/core/iomgr/tcp_client.h"
+#include "src/core/lib/iomgr/iocp_windows.h"
+#include "src/core/lib/iomgr/sockaddr.h"
+#include "src/core/lib/iomgr/sockaddr_utils.h"
+#include "src/core/lib/iomgr/socket_windows.h"
+#include "src/core/lib/iomgr/tcp_client.h"
+#include "src/core/lib/iomgr/timer.h"
 
 static int set_non_block(SOCKET sock) {
   int status;
@@ -146,8 +146,8 @@
   grpc_winsocket_callback_info *info = &socket->read_info;
 
   if (success) {
-    if (socket->read_info.wsa_error != 0 && !tcp->shutting_down) {
-      if (socket->read_info.wsa_error != WSAECONNRESET) {
+    if (info->wsa_error != 0 && !tcp->shutting_down) {
+      if (info->wsa_error != WSAECONNRESET) {
         char *utf8_message = gpr_format_message(info->wsa_error);
         gpr_log(GPR_ERROR, "ReadFile overlapped error: %s", utf8_message);
         gpr_free(utf8_message);
@@ -306,7 +306,7 @@
       ok = true;
       GPR_ASSERT(bytes_sent == tcp->write_slices->length);
     } else {
-      if (socket->read_info.wsa_error != WSAECONNRESET) {
+      if (info->wsa_error != WSAECONNRESET) {
         char *utf8_message = gpr_format_message(info->wsa_error);
         gpr_log(GPR_ERROR, "WSASend error: %s", utf8_message);
         gpr_free(utf8_message);
@@ -382,9 +382,9 @@
   return gpr_strdup(tcp->peer_string);
 }
 
-static grpc_endpoint_vtable vtable = {win_read, win_write, win_add_to_pollset,
-                                      win_add_to_pollset_set, win_shutdown,
-                                      win_destroy, win_get_peer};
+static grpc_endpoint_vtable vtable = {
+    win_read,     win_write,   win_add_to_pollset, win_add_to_pollset_set,
+    win_shutdown, win_destroy, win_get_peer};
 
 grpc_endpoint *grpc_tcp_create(grpc_winsocket *socket, char *peer_string) {
   grpc_tcp *tcp = (grpc_tcp *)gpr_malloc(sizeof(grpc_tcp));
diff --git a/src/core/iomgr/tcp_windows.h b/src/core/lib/iomgr/tcp_windows.h
similarity index 90%
rename from src/core/iomgr/tcp_windows.h
rename to src/core/lib/iomgr/tcp_windows.h
index 78bc133..7a9ebd8 100644
--- a/src/core/iomgr/tcp_windows.h
+++ b/src/core/lib/iomgr/tcp_windows.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_TCP_WINDOWS_H
-#define GRPC_CORE_IOMGR_TCP_WINDOWS_H
+#ifndef GRPC_CORE_LIB_IOMGR_TCP_WINDOWS_H
+#define GRPC_CORE_LIB_IOMGR_TCP_WINDOWS_H
 /*
    Low level TCP "bottom half" implementation, for use by transports built on
    top of a TCP connection.
@@ -44,8 +44,8 @@
    otherwise specified.
 */
 
-#include "src/core/iomgr/endpoint.h"
-#include "src/core/iomgr/socket_windows.h"
+#include "src/core/lib/iomgr/endpoint.h"
+#include "src/core/lib/iomgr/socket_windows.h"
 
 /* Create a tcp endpoint given a winsock handle.
  * Takes ownership of the handle.
@@ -54,4 +54,4 @@
 
 int grpc_tcp_prepare_socket(SOCKET sock);
 
-#endif /* GRPC_CORE_IOMGR_TCP_WINDOWS_H */
+#endif /* GRPC_CORE_LIB_IOMGR_TCP_WINDOWS_H */
diff --git a/src/core/iomgr/time_averaged_stats.c b/src/core/lib/iomgr/time_averaged_stats.c
similarity index 97%
rename from src/core/iomgr/time_averaged_stats.c
rename to src/core/lib/iomgr/time_averaged_stats.c
index e075db4..f24d680 100644
--- a/src/core/iomgr/time_averaged_stats.c
+++ b/src/core/lib/iomgr/time_averaged_stats.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/iomgr/time_averaged_stats.h"
+#include "src/core/lib/iomgr/time_averaged_stats.h"
 
 void grpc_time_averaged_stats_init(grpc_time_averaged_stats* stats,
                                    double init_avg, double regress_weight,
diff --git a/src/core/iomgr/time_averaged_stats.h b/src/core/lib/iomgr/time_averaged_stats.h
similarity index 96%
rename from src/core/iomgr/time_averaged_stats.h
rename to src/core/lib/iomgr/time_averaged_stats.h
index 048e244..4a662e1 100644
--- a/src/core/iomgr/time_averaged_stats.h
+++ b/src/core/lib/iomgr/time_averaged_stats.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_TIME_AVERAGED_STATS_H
-#define GRPC_CORE_IOMGR_TIME_AVERAGED_STATS_H
+#ifndef GRPC_CORE_LIB_IOMGR_TIME_AVERAGED_STATS_H
+#define GRPC_CORE_LIB_IOMGR_TIME_AVERAGED_STATS_H
 
 /* This tracks a time-decaying weighted average.  It works by collecting
    batches of samples and then mixing their average into a time-decaying
@@ -85,4 +85,4 @@
    value. */
 double grpc_time_averaged_stats_update_average(grpc_time_averaged_stats* stats);
 
-#endif /* GRPC_CORE_IOMGR_TIME_AVERAGED_STATS_H */
+#endif /* GRPC_CORE_LIB_IOMGR_TIME_AVERAGED_STATS_H */
diff --git a/src/core/iomgr/timer.c b/src/core/lib/iomgr/timer.c
similarity index 98%
rename from src/core/iomgr/timer.c
rename to src/core/lib/iomgr/timer.c
index f444643..4748f9b 100644
--- a/src/core/iomgr/timer.c
+++ b/src/core/lib/iomgr/timer.c
@@ -31,13 +31,13 @@
  *
  */
 
-#include "src/core/iomgr/timer.h"
+#include "src/core/lib/iomgr/timer.h"
 
 #include <grpc/support/log.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/useful.h>
-#include "src/core/iomgr/time_averaged_stats.h"
-#include "src/core/iomgr/timer_heap.h"
+#include "src/core/lib/iomgr/time_averaged_stats.h"
+#include "src/core/lib/iomgr/timer_heap.h"
 
 #define INVALID_HEAP_INDEX 0xffffffffu
 
diff --git a/src/core/iomgr/timer.h b/src/core/lib/iomgr/timer.h
similarity index 95%
rename from src/core/iomgr/timer.h
rename to src/core/lib/iomgr/timer.h
index 63505df..54f301c 100644
--- a/src/core/iomgr/timer.h
+++ b/src/core/lib/iomgr/timer.h
@@ -31,13 +31,13 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_TIMER_H
-#define GRPC_CORE_IOMGR_TIMER_H
+#ifndef GRPC_CORE_LIB_IOMGR_TIMER_H
+#define GRPC_CORE_LIB_IOMGR_TIMER_H
 
-#include "src/core/iomgr/iomgr.h"
-#include "src/core/iomgr/exec_ctx.h"
 #include <grpc/support/port_platform.h>
 #include <grpc/support/time.h>
+#include "src/core/lib/iomgr/exec_ctx.h"
+#include "src/core/lib/iomgr/iomgr.h"
 
 typedef struct grpc_timer {
   gpr_timespec deadline;
@@ -105,4 +105,4 @@
 
 void grpc_kick_poller(void);
 
-#endif /* GRPC_CORE_IOMGR_TIMER_H */
+#endif /* GRPC_CORE_LIB_IOMGR_TIMER_H */
diff --git a/src/core/iomgr/timer_heap.c b/src/core/lib/iomgr/timer_heap.c
similarity index 98%
rename from src/core/iomgr/timer_heap.c
rename to src/core/lib/iomgr/timer_heap.c
index b5df566..d43b6cc 100644
--- a/src/core/iomgr/timer_heap.c
+++ b/src/core/lib/iomgr/timer_heap.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/iomgr/timer_heap.h"
+#include "src/core/lib/iomgr/timer_heap.h"
 
 #include <string.h>
 
diff --git a/src/core/iomgr/timer_heap.h b/src/core/lib/iomgr/timer_heap.h
similarity index 92%
rename from src/core/iomgr/timer_heap.h
rename to src/core/lib/iomgr/timer_heap.h
index c2912ef..d5112cf 100644
--- a/src/core/iomgr/timer_heap.h
+++ b/src/core/lib/iomgr/timer_heap.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_TIMER_HEAP_H
-#define GRPC_CORE_IOMGR_TIMER_HEAP_H
+#ifndef GRPC_CORE_LIB_IOMGR_TIMER_HEAP_H
+#define GRPC_CORE_LIB_IOMGR_TIMER_HEAP_H
 
-#include "src/core/iomgr/timer.h"
+#include "src/core/lib/iomgr/timer.h"
 
 typedef struct {
   grpc_timer **timers;
@@ -54,4 +54,4 @@
 
 int grpc_timer_heap_is_empty(grpc_timer_heap *heap);
 
-#endif /* GRPC_CORE_IOMGR_TIMER_HEAP_H */
+#endif /* GRPC_CORE_LIB_IOMGR_TIMER_HEAP_H */
diff --git a/src/core/iomgr/udp_server.c b/src/core/lib/iomgr/udp_server.c
similarity index 94%
rename from src/core/iomgr/udp_server.c
rename to src/core/lib/iomgr/udp_server.c
index cb39231..deab40e 100644
--- a/src/core/iomgr/udp_server.c
+++ b/src/core/lib/iomgr/udp_server.c
@@ -41,7 +41,7 @@
 #ifdef GRPC_NEED_UDP
 #ifdef GPR_POSIX_SOCKET
 
-#include "src/core/iomgr/udp_server.h"
+#include "src/core/lib/iomgr/udp_server.h"
 
 #include <errno.h>
 #include <fcntl.h>
@@ -52,19 +52,19 @@
 #include <sys/socket.h>
 #include <sys/stat.h>
 #include <sys/types.h>
-#include <sys/un.h>
 #include <unistd.h>
 
-#include "src/core/iomgr/ev_posix.h"
-#include "src/core/iomgr/resolve_address.h"
-#include "src/core/iomgr/sockaddr_utils.h"
-#include "src/core/iomgr/socket_utils_posix.h"
-#include "src/core/support/string.h"
+#include <grpc/grpc.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include <grpc/support/sync.h>
 #include <grpc/support/string_util.h>
+#include <grpc/support/sync.h>
 #include <grpc/support/time.h>
+#include "src/core/lib/iomgr/ev_posix.h"
+#include "src/core/lib/iomgr/resolve_address.h"
+#include "src/core/lib/iomgr/sockaddr_utils.h"
+#include "src/core/lib/iomgr/socket_utils_posix.h"
+#include "src/core/lib/support/string.h"
 
 #define INIT_PORT_CAP 2
 
@@ -76,7 +76,6 @@
   union {
     uint8_t untyped[GRPC_MAX_SOCKADDR_SIZE];
     struct sockaddr sockaddr;
-    struct sockaddr_un un;
   } addr;
   size_t addr_len;
   grpc_closure read_closure;
@@ -84,14 +83,6 @@
   grpc_udp_server_read_cb read_cb;
 } server_port;
 
-static void unlink_if_unix_domain_socket(const struct sockaddr_un *un) {
-  struct stat st;
-
-  if (stat(un->sun_path, &st) == 0 && (st.st_mode & S_IFMT) == S_IFSOCK) {
-    unlink(un->sun_path);
-  }
-}
-
 /* the overall server */
 struct grpc_udp_server {
   gpr_mu mu;
@@ -175,9 +166,7 @@
   if (s->nports) {
     for (i = 0; i < s->nports; i++) {
       server_port *sp = &s->ports[i];
-      if (sp->addr.sockaddr.sa_family == AF_UNIX) {
-        unlink_if_unix_domain_socket(&sp->addr.un);
-      }
+      grpc_unlink_if_unix_domain_socket(&sp->addr.sockaddr);
       sp->destroyed_closure.cb = destroyed_port;
       sp->destroyed_closure.cb_arg = s;
       grpc_fd_orphan(exec_ctx, sp->emfd, &sp->destroyed_closure, NULL,
@@ -335,9 +324,7 @@
   socklen_t sockname_len;
   int port;
 
-  if (((struct sockaddr *)addr)->sa_family == AF_UNIX) {
-    unlink_if_unix_domain_socket(addr);
-  }
+  grpc_unlink_if_unix_domain_socket((struct sockaddr *)addr);
 
   /* Check if this is a wildcard port, and if so, try to keep the port the same
      as some previously created listener. */
diff --git a/src/core/iomgr/udp_server.h b/src/core/lib/iomgr/udp_server.h
similarity index 86%
rename from src/core/iomgr/udp_server.h
rename to src/core/lib/iomgr/udp_server.h
index e47f9a2..f3fb0c5 100644
--- a/src/core/iomgr/udp_server.h
+++ b/src/core/lib/iomgr/udp_server.h
@@ -31,21 +31,22 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_UDP_SERVER_H
-#define GRPC_CORE_IOMGR_UDP_SERVER_H
+#ifndef GRPC_CORE_LIB_IOMGR_UDP_SERVER_H
+#define GRPC_CORE_LIB_IOMGR_UDP_SERVER_H
 
-#include "src/core/iomgr/endpoint.h"
-#include "src/core/iomgr/ev_posix.h"
+#include "src/core/lib/iomgr/endpoint.h"
+#include "src/core/lib/iomgr/ev_posix.h"
 
-/* Forward decl of grpc_server */
-typedef struct grpc_server grpc_server;
+/* Forward decl of struct grpc_server */
+/* This is not typedef'ed to avoid a typedef-redefinition error */
+struct grpc_server;
 
 /* Forward decl of grpc_udp_server */
 typedef struct grpc_udp_server grpc_udp_server;
 
 /* Called when data is available to read from the socket. */
 typedef void (*grpc_udp_server_read_cb)(grpc_exec_ctx *exec_ctx, grpc_fd *emfd,
-                                        grpc_server *server);
+                                        struct grpc_server *server);
 
 /* Create a server, initially not bound to any ports */
 grpc_udp_server *grpc_udp_server_create(void);
@@ -53,7 +54,7 @@
 /* Start listening to bound ports */
 void grpc_udp_server_start(grpc_exec_ctx *exec_ctx, grpc_udp_server *udp_server,
                            grpc_pollset **pollsets, size_t pollset_count,
-                           grpc_server *server);
+                           struct grpc_server *server);
 
 int grpc_udp_server_get_fd(grpc_udp_server *s, unsigned index);
 
@@ -73,4 +74,4 @@
 void grpc_udp_server_destroy(grpc_exec_ctx *exec_ctx, grpc_udp_server *server,
                              grpc_closure *on_done);
 
-#endif /* GRPC_CORE_IOMGR_UDP_SERVER_H */
+#endif /* GRPC_CORE_LIB_IOMGR_UDP_SERVER_H */
diff --git a/src/core/lib/iomgr/unix_sockets_posix.c b/src/core/lib/iomgr/unix_sockets_posix.c
new file mode 100644
index 0000000..42e4498
--- /dev/null
+++ b/src/core/lib/iomgr/unix_sockets_posix.c
@@ -0,0 +1,103 @@
+/*
+ *
+ * Copyright 2016, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "src/core/lib/iomgr/unix_sockets_posix.h"
+
+#ifdef GPR_HAVE_UNIX_SOCKET
+
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+#include <sys/un.h>
+
+#include <grpc/support/alloc.h>
+
+void grpc_create_socketpair_if_unix(int sv[2]) {
+  GPR_ASSERT(socketpair(AF_UNIX, SOCK_STREAM, 0, sv) == 0);
+}
+
+grpc_resolved_addresses *grpc_resolve_unix_domain_address(const char *name) {
+  struct sockaddr_un *un;
+
+  grpc_resolved_addresses *addrs = gpr_malloc(sizeof(grpc_resolved_addresses));
+  addrs->naddrs = 1;
+  addrs->addrs = gpr_malloc(sizeof(grpc_resolved_address));
+  un = (struct sockaddr_un *)addrs->addrs->addr;
+  un->sun_family = AF_UNIX;
+  strcpy(un->sun_path, name);
+  addrs->addrs->len = strlen(un->sun_path) + sizeof(un->sun_family) + 1;
+  return addrs;
+}
+
+int grpc_is_unix_socket(const struct sockaddr *addr) {
+  return addr->sa_family == AF_UNIX;
+}
+
+void grpc_unlink_if_unix_domain_socket(const struct sockaddr *addr) {
+  if (addr->sa_family != AF_UNIX) {
+    return;
+  }
+  struct sockaddr_un *un = (struct sockaddr_un *)addr;
+  struct stat st;
+
+  if (stat(un->sun_path, &st) == 0 && (st.st_mode & S_IFMT) == S_IFSOCK) {
+    unlink(un->sun_path);
+  }
+}
+
+int grpc_parse_unix(grpc_uri *uri, struct sockaddr_storage *addr, size_t *len) {
+  struct sockaddr_un *un = (struct sockaddr_un *)addr;
+
+  un->sun_family = AF_UNIX;
+  strcpy(un->sun_path, uri->path);
+  *len = strlen(un->sun_path) + sizeof(un->sun_family) + 1;
+
+  return 1;
+}
+
+char *grpc_unix_get_default_authority(grpc_resolver_factory *factory,
+                                      grpc_uri *uri) {
+  return gpr_strdup("localhost");
+}
+
+char *grpc_sockaddr_to_uri_unix_if_possible(const struct sockaddr *addr) {
+  if (addr->sa_family != AF_UNIX) {
+    return NULL;
+  }
+
+  char *result;
+  gpr_asprintf(&result, "unix:%s", ((struct sockaddr_un *)addr)->sun_path);
+  return result;
+}
+
+#endif
diff --git a/src/core/security/credentials_posix.c b/src/core/lib/iomgr/unix_sockets_posix.h
similarity index 63%
copy from src/core/security/credentials_posix.c
copy to src/core/lib/iomgr/unix_sockets_posix.h
index 0c92bd4..752cab8 100644
--- a/src/core/security/credentials_posix.c
+++ b/src/core/lib/iomgr/unix_sockets_posix.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,31 +31,31 @@
  *
  */
 
+#ifndef GRPC_CORE_LIB_IOMGR_UNIX_SOCKETS_POSIX_H
+#define GRPC_CORE_LIB_IOMGR_UNIX_SOCKETS_POSIX_H
+
 #include <grpc/support/port_platform.h>
 
-#ifdef GPR_POSIX_FILE
-
-#include "src/core/security/credentials.h"
-
-#include <grpc/support/alloc.h>
-#include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/support/env.h"
-#include "src/core/support/string.h"
+#include "src/core/lib/client_config/resolver_factory.h"
+#include "src/core/lib/client_config/uri_parser.h"
+#include "src/core/lib/iomgr/resolve_address.h"
+#include "src/core/lib/iomgr/sockaddr.h"
 
-char *grpc_get_well_known_google_credentials_file_path_impl(void) {
-  char *result = NULL;
-  char *home = gpr_getenv("HOME");
-  if (home == NULL) {
-    gpr_log(GPR_ERROR, "Could not get HOME environment variable.");
-    return NULL;
-  }
-  gpr_asprintf(&result, "%s/.config/%s/%s", home,
-               GRPC_GOOGLE_CLOUD_SDK_CONFIG_DIRECTORY,
-               GRPC_GOOGLE_WELL_KNOWN_CREDENTIALS_FILE);
-  gpr_free(home);
-  return result;
-}
+void grpc_create_socketpair_if_unix(int sv[2]);
 
-#endif /* GPR_POSIX_FILE */
+grpc_resolved_addresses *grpc_resolve_unix_domain_address(const char *name);
+
+int grpc_is_unix_socket(const struct sockaddr *addr);
+
+void grpc_unlink_if_unix_domain_socket(const struct sockaddr *addr);
+
+int grpc_parse_unix(grpc_uri *uri, struct sockaddr_storage *addr, size_t *len);
+
+char *grpc_unix_get_default_authority(grpc_resolver_factory *factory,
+                                      grpc_uri *uri);
+
+char *grpc_sockaddr_to_uri_unix_if_possible(const struct sockaddr *addr);
+
+#endif /* GRPC_CORE_LIB_IOMGR_UNIX_SOCKETS_POSIX_H */
diff --git a/src/core/surface/lame_client.h b/src/core/lib/iomgr/unix_sockets_posix_noop.c
similarity index 68%
copy from src/core/surface/lame_client.h
copy to src/core/lib/iomgr/unix_sockets_posix_noop.c
index 3f3abd2..06f6ee0 100644
--- a/src/core/surface/lame_client.h
+++ b/src/core/lib/iomgr/unix_sockets_posix_noop.c
@@ -31,11 +31,31 @@
  *
  */
 
-#ifndef GRPC_CORE_SURFACE_LAME_CLIENT_H
-#define GRPC_CORE_SURFACE_LAME_CLIENT_H
+#include "src/core/lib/iomgr/unix_sockets_posix.h"
 
-#include "src/core/channel/channel_stack.h"
+#ifndef GPR_HAVE_UNIX_SOCKET
 
-extern const grpc_channel_filter grpc_lame_filter;
+void grpc_create_socketpair_if_unix(int sv[2]) {}
 
-#endif /* GRPC_CORE_SURFACE_LAME_CLIENT_H */
+grpc_resolved_addresses *grpc_resolve_unix_domain_address(const char *name) {
+  return NULL;
+}
+
+int grpc_is_unix_socket(const struct sockaddr *addr) { return false; }
+
+void grpc_unlink_if_unix_domain_socket(const struct sockaddr *addr) {}
+
+int grpc_parse_unix(grpc_uri *uri, struct sockaddr_storage *addr, size_t *len) {
+  return 0;
+}
+
+char *grpc_unix_get_default_authority(grpc_resolver_factory *factory,
+                                      grpc_uri *uri) {
+  return NULL;
+}
+
+char *grpc_sockaddr_to_uri_unix_if_possible(const struct sockaddr *addr) {
+  return NULL;
+}
+
+#endif
diff --git a/src/core/iomgr/wakeup_fd_eventfd.c b/src/core/lib/iomgr/wakeup_fd_eventfd.c
similarity index 95%
rename from src/core/iomgr/wakeup_fd_eventfd.c
rename to src/core/lib/iomgr/wakeup_fd_eventfd.c
index f67379e..41ded0c 100644
--- a/src/core/iomgr/wakeup_fd_eventfd.c
+++ b/src/core/lib/iomgr/wakeup_fd_eventfd.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -41,8 +41,8 @@
 
 #include <grpc/support/log.h>
 
-#include "src/core/iomgr/wakeup_fd_posix.h"
-#include "src/core/profiling/timers.h"
+#include "src/core/lib/iomgr/wakeup_fd_posix.h"
+#include "src/core/lib/profiling/timers.h"
 
 static void eventfd_create(grpc_wakeup_fd* fd_info) {
   int efd = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
diff --git a/src/core/iomgr/wakeup_fd_nospecial.c b/src/core/lib/iomgr/wakeup_fd_nospecial.c
similarity index 95%
rename from src/core/iomgr/wakeup_fd_nospecial.c
rename to src/core/lib/iomgr/wakeup_fd_nospecial.c
index 78d763c..39defa6 100644
--- a/src/core/iomgr/wakeup_fd_nospecial.c
+++ b/src/core/lib/iomgr/wakeup_fd_nospecial.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -40,8 +40,8 @@
 
 #ifdef GPR_POSIX_NO_SPECIAL_WAKEUP_FD
 
-#include "src/core/iomgr/wakeup_fd_posix.h"
 #include <stddef.h>
+#include "src/core/lib/iomgr/wakeup_fd_posix.h"
 
 static int check_availability_invalid(void) { return 0; }
 
diff --git a/src/core/iomgr/wakeup_fd_pipe.c b/src/core/lib/iomgr/wakeup_fd_pipe.c
similarity index 91%
rename from src/core/iomgr/wakeup_fd_pipe.c
rename to src/core/lib/iomgr/wakeup_fd_pipe.c
index 80de181..820919e 100644
--- a/src/core/iomgr/wakeup_fd_pipe.c
+++ b/src/core/lib/iomgr/wakeup_fd_pipe.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,19 +35,24 @@
 
 #ifdef GPR_POSIX_WAKEUP_FD
 
-#include "src/core/iomgr/wakeup_fd_posix.h"
+#include "src/core/lib/iomgr/wakeup_fd_posix.h"
 
 #include <errno.h>
 #include <string.h>
 #include <unistd.h>
 
-#include "src/core/iomgr/socket_utils_posix.h"
 #include <grpc/support/log.h>
 
+#include "src/core/lib/iomgr/socket_utils_posix.h"
+
 static void pipe_init(grpc_wakeup_fd* fd_info) {
   int pipefd[2];
   /* TODO(klempner): Make this nonfatal */
-  GPR_ASSERT(0 == pipe(pipefd));
+  int r = pipe(pipefd);
+  if (0 != r) {
+    gpr_log(GPR_ERROR, "pipe creation failed (%d): %s", errno, strerror(errno));
+    abort();
+  }
   GPR_ASSERT(grpc_set_socket_nonblocking(pipefd[0], 1));
   GPR_ASSERT(grpc_set_socket_nonblocking(pipefd[1], 1));
   fd_info->read_fd = pipefd[0];
diff --git a/src/core/iomgr/wakeup_fd_pipe.h b/src/core/lib/iomgr/wakeup_fd_pipe.h
similarity index 89%
rename from src/core/iomgr/wakeup_fd_pipe.h
rename to src/core/lib/iomgr/wakeup_fd_pipe.h
index eb3e02b..bbdb1fc 100644
--- a/src/core/iomgr/wakeup_fd_pipe.h
+++ b/src/core/lib/iomgr/wakeup_fd_pipe.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_WAKEUP_FD_PIPE_H
-#define GRPC_CORE_IOMGR_WAKEUP_FD_PIPE_H
+#ifndef GRPC_CORE_LIB_IOMGR_WAKEUP_FD_PIPE_H
+#define GRPC_CORE_LIB_IOMGR_WAKEUP_FD_PIPE_H
 
-#include "src/core/iomgr/wakeup_fd_posix.h"
+#include "src/core/lib/iomgr/wakeup_fd_posix.h"
 
 extern grpc_wakeup_fd_vtable grpc_pipe_wakeup_fd_vtable;
 
-#endif /* GRPC_CORE_IOMGR_WAKEUP_FD_PIPE_H */
+#endif /* GRPC_CORE_LIB_IOMGR_WAKEUP_FD_PIPE_H */
diff --git a/src/core/iomgr/wakeup_fd_posix.c b/src/core/lib/iomgr/wakeup_fd_posix.c
similarity index 94%
rename from src/core/iomgr/wakeup_fd_posix.c
rename to src/core/lib/iomgr/wakeup_fd_posix.c
index f40be08..c4d174f 100644
--- a/src/core/iomgr/wakeup_fd_posix.c
+++ b/src/core/lib/iomgr/wakeup_fd_posix.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,9 +35,9 @@
 
 #ifdef GPR_POSIX_WAKEUP_FD
 
-#include "src/core/iomgr/wakeup_fd_posix.h"
-#include "src/core/iomgr/wakeup_fd_pipe.h"
 #include <stddef.h>
+#include "src/core/lib/iomgr/wakeup_fd_pipe.h"
+#include "src/core/lib/iomgr/wakeup_fd_posix.h"
 
 static const grpc_wakeup_fd_vtable *wakeup_fd_vtable = NULL;
 int grpc_allow_specialized_wakeup_fd = 1;
diff --git a/src/core/iomgr/wakeup_fd_posix.h b/src/core/lib/iomgr/wakeup_fd_posix.h
similarity index 96%
rename from src/core/iomgr/wakeup_fd_posix.h
rename to src/core/lib/iomgr/wakeup_fd_posix.h
index d7e3cf4..20988d5 100644
--- a/src/core/iomgr/wakeup_fd_posix.h
+++ b/src/core/lib/iomgr/wakeup_fd_posix.h
@@ -59,8 +59,8 @@
  * 2. If the polling thread was awakened by a wakeup_fd event, call
  *    grpc_wakeup_fd_consume_wakeup() on it.
  */
-#ifndef GRPC_CORE_IOMGR_WAKEUP_FD_POSIX_H
-#define GRPC_CORE_IOMGR_WAKEUP_FD_POSIX_H
+#ifndef GRPC_CORE_LIB_IOMGR_WAKEUP_FD_POSIX_H
+#define GRPC_CORE_LIB_IOMGR_WAKEUP_FD_POSIX_H
 
 void grpc_wakeup_fd_global_init(void);
 void grpc_wakeup_fd_global_destroy(void);
@@ -98,4 +98,4 @@
  * wakeup_fd_nospecial.c if no such implementation exists. */
 extern const grpc_wakeup_fd_vtable grpc_specialized_wakeup_fd_vtable;
 
-#endif /* GRPC_CORE_IOMGR_WAKEUP_FD_POSIX_H */
+#endif /* GRPC_CORE_LIB_IOMGR_WAKEUP_FD_POSIX_H */
diff --git a/src/core/iomgr/workqueue.h b/src/core/lib/iomgr/workqueue.h
similarity index 88%
rename from src/core/iomgr/workqueue.h
rename to src/core/lib/iomgr/workqueue.h
index 2ba1e5d..9c420c5 100644
--- a/src/core/iomgr/workqueue.h
+++ b/src/core/lib/iomgr/workqueue.h
@@ -31,20 +31,20 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_WORKQUEUE_H
-#define GRPC_CORE_IOMGR_WORKQUEUE_H
+#ifndef GRPC_CORE_LIB_IOMGR_WORKQUEUE_H
+#define GRPC_CORE_LIB_IOMGR_WORKQUEUE_H
 
-#include "src/core/iomgr/iomgr.h"
-#include "src/core/iomgr/pollset.h"
-#include "src/core/iomgr/closure.h"
-#include "src/core/iomgr/exec_ctx.h"
+#include "src/core/lib/iomgr/closure.h"
+#include "src/core/lib/iomgr/exec_ctx.h"
+#include "src/core/lib/iomgr/iomgr.h"
+#include "src/core/lib/iomgr/pollset.h"
 
 #ifdef GPR_POSIX_SOCKET
-#include "src/core/iomgr/workqueue_posix.h"
+#include "src/core/lib/iomgr/workqueue_posix.h"
 #endif
 
 #ifdef GPR_WIN32
-#include "src/core/iomgr/workqueue_windows.h"
+#include "src/core/lib/iomgr/workqueue_windows.h"
 #endif
 
 /* grpc_workqueue is forward declared in exec_ctx.h */
@@ -80,4 +80,4 @@
 void grpc_workqueue_push(grpc_workqueue *workqueue, grpc_closure *closure,
                          int success);
 
-#endif /* GRPC_CORE_IOMGR_WORKQUEUE_H */
+#endif /* GRPC_CORE_LIB_IOMGR_WORKQUEUE_H */
diff --git a/src/core/iomgr/workqueue_posix.c b/src/core/lib/iomgr/workqueue_posix.c
similarity index 98%
rename from src/core/iomgr/workqueue_posix.c
rename to src/core/lib/iomgr/workqueue_posix.c
index ffc4611..08c48b8 100644
--- a/src/core/iomgr/workqueue_posix.c
+++ b/src/core/lib/iomgr/workqueue_posix.c
@@ -35,7 +35,7 @@
 
 #ifdef GPR_POSIX_SOCKET
 
-#include "src/core/iomgr/workqueue.h"
+#include "src/core/lib/iomgr/workqueue.h"
 
 #include <stdio.h>
 
@@ -43,7 +43,7 @@
 #include <grpc/support/log.h>
 #include <grpc/support/useful.h>
 
-#include "src/core/iomgr/ev_posix.h"
+#include "src/core/lib/iomgr/ev_posix.h"
 
 static void on_readable(grpc_exec_ctx *exec_ctx, void *arg, bool success);
 
diff --git a/src/core/iomgr/workqueue_posix.h b/src/core/lib/iomgr/workqueue_posix.h
similarity index 90%
rename from src/core/iomgr/workqueue_posix.h
rename to src/core/lib/iomgr/workqueue_posix.h
index 89937b1..956de8f 100644
--- a/src/core/iomgr/workqueue_posix.h
+++ b/src/core/lib/iomgr/workqueue_posix.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_WORKQUEUE_POSIX_H
-#define GRPC_CORE_IOMGR_WORKQUEUE_POSIX_H
+#ifndef GRPC_CORE_LIB_IOMGR_WORKQUEUE_POSIX_H
+#define GRPC_CORE_LIB_IOMGR_WORKQUEUE_POSIX_H
 
-#include "src/core/iomgr/wakeup_fd_posix.h"
+#include "src/core/lib/iomgr/wakeup_fd_posix.h"
 
 struct grpc_fd;
 
@@ -50,4 +50,4 @@
   grpc_closure read_closure;
 };
 
-#endif /* GRPC_CORE_IOMGR_WORKQUEUE_POSIX_H */
+#endif /* GRPC_CORE_LIB_IOMGR_WORKQUEUE_POSIX_H */
diff --git a/src/core/iomgr/workqueue_windows.c b/src/core/lib/iomgr/workqueue_windows.c
similarity index 95%
rename from src/core/iomgr/workqueue_windows.c
rename to src/core/lib/iomgr/workqueue_windows.c
index f9ca575..6697f93 100644
--- a/src/core/iomgr/workqueue_windows.c
+++ b/src/core/lib/iomgr/workqueue_windows.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,6 +35,6 @@
 
 #ifdef GPR_WIN32
 
-#include "src/core/iomgr/workqueue.h"
+#include "src/core/lib/iomgr/workqueue.h"
 
 #endif /* GPR_WIN32 */
diff --git a/src/core/iomgr/workqueue_windows.h b/src/core/lib/iomgr/workqueue_windows.h
similarity index 91%
rename from src/core/iomgr/workqueue_windows.h
rename to src/core/lib/iomgr/workqueue_windows.h
index 7e81869..8e6980b 100644
--- a/src/core/iomgr/workqueue_windows.h
+++ b/src/core/lib/iomgr/workqueue_windows.h
@@ -31,7 +31,7 @@
  *
  */
 
-#ifndef GRPC_CORE_IOMGR_WORKQUEUE_WINDOWS_H
-#define GRPC_CORE_IOMGR_WORKQUEUE_WINDOWS_H
+#ifndef GRPC_CORE_LIB_IOMGR_WORKQUEUE_WINDOWS_H
+#define GRPC_CORE_LIB_IOMGR_WORKQUEUE_WINDOWS_H
 
-#endif /* GRPC_CORE_IOMGR_WORKQUEUE_WINDOWS_H */
+#endif /* GRPC_CORE_LIB_IOMGR_WORKQUEUE_WINDOWS_H */
diff --git a/src/core/json/json.c b/src/core/lib/json/json.c
similarity index 96%
rename from src/core/json/json.c
rename to src/core/lib/json/json.c
index 96e11ee..9793045 100644
--- a/src/core/json/json.c
+++ b/src/core/lib/json/json.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,7 +35,7 @@
 
 #include <grpc/support/alloc.h>
 
-#include "src/core/json/json.h"
+#include "src/core/lib/json/json.h"
 
 grpc_json *grpc_json_create(grpc_json_type type) {
   grpc_json *json = gpr_malloc(sizeof(*json));
diff --git a/src/core/json/json.h b/src/core/lib/json/json.h
similarity index 95%
rename from src/core/json/json.h
rename to src/core/lib/json/json.h
index aea9d5d..41d87dd 100644
--- a/src/core/json/json.h
+++ b/src/core/lib/json/json.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_JSON_JSON_H
-#define GRPC_CORE_JSON_JSON_H
+#ifndef GRPC_CORE_LIB_JSON_JSON_H
+#define GRPC_CORE_LIB_JSON_JSON_H
 
 #include <stdlib.h>
 
-#include "src/core/json/json_common.h"
+#include "src/core/lib/json/json_common.h"
 
 /* A tree-like structure to hold json values. The key and value pointers
  * are not owned by it.
@@ -85,4 +85,4 @@
 grpc_json *grpc_json_create(grpc_json_type type);
 void grpc_json_destroy(grpc_json *json);
 
-#endif /* GRPC_CORE_JSON_JSON_H */
+#endif /* GRPC_CORE_LIB_JSON_JSON_H */
diff --git a/src/core/json/json_common.h b/src/core/lib/json/json_common.h
similarity index 93%
rename from src/core/json/json_common.h
rename to src/core/lib/json/json_common.h
index 7205a94..ce98004 100644
--- a/src/core/json/json_common.h
+++ b/src/core/lib/json/json_common.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_JSON_JSON_COMMON_H
-#define GRPC_CORE_JSON_JSON_COMMON_H
+#ifndef GRPC_CORE_LIB_JSON_JSON_COMMON_H
+#define GRPC_CORE_LIB_JSON_JSON_COMMON_H
 
 /* The various json types. */
 typedef enum {
@@ -46,4 +46,4 @@
   GRPC_JSON_TOP_LEVEL
 } grpc_json_type;
 
-#endif /* GRPC_CORE_JSON_JSON_COMMON_H */
+#endif /* GRPC_CORE_LIB_JSON_JSON_COMMON_H */
diff --git a/src/core/json/json_reader.c b/src/core/lib/json/json_reader.c
similarity index 99%
rename from src/core/json/json_reader.c
rename to src/core/lib/json/json_reader.c
index 30da6f2..0807f02 100644
--- a/src/core/json/json_reader.c
+++ b/src/core/lib/json/json_reader.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -37,7 +37,7 @@
 
 #include <grpc/support/log.h>
 
-#include "src/core/json/json_reader.h"
+#include "src/core/lib/json/json_reader.h"
 
 static void json_reader_string_clear(grpc_json_reader *reader) {
   reader->vtable->string_clear(reader->userdata);
diff --git a/src/core/json/json_reader.h b/src/core/lib/json/json_reader.h
similarity index 97%
rename from src/core/json/json_reader.h
rename to src/core/lib/json/json_reader.h
index f25f44b..37a8388 100644
--- a/src/core/json/json_reader.h
+++ b/src/core/lib/json/json_reader.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_JSON_JSON_READER_H
-#define GRPC_CORE_JSON_JSON_READER_H
+#ifndef GRPC_CORE_LIB_JSON_JSON_READER_H
+#define GRPC_CORE_LIB_JSON_JSON_READER_H
 
 #include <grpc/support/port_platform.h>
-#include "src/core/json/json_common.h"
+#include "src/core/lib/json/json_common.h"
 
 typedef enum {
   GRPC_JSON_STATE_OBJECT_KEY_BEGIN,
@@ -157,4 +157,4 @@
  */
 int grpc_json_reader_is_complete(grpc_json_reader *reader);
 
-#endif /* GRPC_CORE_JSON_JSON_READER_H */
+#endif /* GRPC_CORE_LIB_JSON_JSON_READER_H */
diff --git a/src/core/json/json_string.c b/src/core/lib/json/json_string.c
similarity index 98%
rename from src/core/json/json_string.c
rename to src/core/lib/json/json_string.c
index 2bc0b51..8e6f125 100644
--- a/src/core/json/json_string.c
+++ b/src/core/lib/json/json_string.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,15 +31,15 @@
  *
  */
 
-#include <string.h>
 #include <stdlib.h>
+#include <string.h>
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 
-#include "src/core/json/json.h"
-#include "src/core/json/json_reader.h"
-#include "src/core/json/json_writer.h"
+#include "src/core/lib/json/json.h"
+#include "src/core/lib/json/json_reader.h"
+#include "src/core/lib/json/json_writer.h"
 
 /* The json reader will construct a bunch of grpc_json objects and
  * link them all up together in a tree-like structure that will represent
diff --git a/src/core/json/json_writer.c b/src/core/lib/json/json_writer.c
similarity index 98%
rename from src/core/json/json_writer.c
rename to src/core/lib/json/json_writer.c
index 326ec2d..d614a72 100644
--- a/src/core/json/json_writer.c
+++ b/src/core/lib/json/json_writer.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,7 +35,7 @@
 
 #include <grpc/support/port_platform.h>
 
-#include "src/core/json/json_writer.h"
+#include "src/core/lib/json/json_writer.h"
 
 static void json_writer_output_char(grpc_json_writer *writer, char c) {
   writer->vtable->output_char(writer->userdata, c);
diff --git a/src/core/json/json_writer.h b/src/core/lib/json/json_writer.h
similarity index 95%
rename from src/core/json/json_writer.h
rename to src/core/lib/json/json_writer.h
index c392126..f90e79c 100644
--- a/src/core/json/json_writer.h
+++ b/src/core/lib/json/json_writer.h
@@ -43,12 +43,12 @@
  * a valid UTF-8 string overall.
  */
 
-#ifndef GRPC_CORE_JSON_JSON_WRITER_H
-#define GRPC_CORE_JSON_JSON_WRITER_H
+#ifndef GRPC_CORE_LIB_JSON_JSON_WRITER_H
+#define GRPC_CORE_LIB_JSON_JSON_WRITER_H
 
 #include <stdlib.h>
 
-#include "src/core/json/json_common.h"
+#include "src/core/lib/json/json_common.h"
 
 typedef struct grpc_json_writer_vtable {
   /* Adds a character to the output stream. */
@@ -94,4 +94,4 @@
 void grpc_json_writer_value_string(grpc_json_writer *writer,
                                    const char *string);
 
-#endif /* GRPC_CORE_JSON_JSON_WRITER_H */
+#endif /* GRPC_CORE_LIB_JSON_JSON_WRITER_H */
diff --git a/src/core/profiling/basic_timers.c b/src/core/lib/profiling/basic_timers.c
similarity index 98%
rename from src/core/profiling/basic_timers.c
rename to src/core/lib/profiling/basic_timers.c
index df32472..15a9584 100644
--- a/src/core/profiling/basic_timers.c
+++ b/src/core/lib/profiling/basic_timers.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,13 +35,13 @@
 
 #ifdef GRPC_BASIC_PROFILER
 
-#include "src/core/profiling/timers.h"
+#include "src/core/lib/profiling/timers.h"
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include <grpc/support/time.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
+#include <grpc/support/time.h>
 #include <stdio.h>
 
 typedef enum { BEGIN = '{', END = '}', MARK = '.' } marker_type;
diff --git a/src/core/profiling/stap_probes.d b/src/core/lib/profiling/stap_probes.d
similarity index 100%
rename from src/core/profiling/stap_probes.d
rename to src/core/lib/profiling/stap_probes.d
diff --git a/src/core/profiling/stap_timers.c b/src/core/lib/profiling/stap_timers.c
similarity index 94%
rename from src/core/profiling/stap_timers.c
rename to src/core/lib/profiling/stap_timers.c
index efcd1af..f55c1a5 100644
--- a/src/core/profiling/stap_timers.c
+++ b/src/core/lib/profiling/stap_timers.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,11 +35,11 @@
 
 #ifdef GRPC_STAP_PROFILER
 
-#include "src/core/profiling/timers.h"
+#include "src/core/lib/profiling/timers.h"
 
 #include <sys/sdt.h>
 /* Generated from src/core/profiling/stap_probes.d */
-#include "src/core/profiling/stap_probes.h"
+#include "src/core/lib/profiling/stap_probes.h"
 
 /* Latency profiler API implementation. */
 void gpr_timer_add_mark(int tag, const char *tagstr, void *id, const char *file,
diff --git a/src/core/profiling/timers.h b/src/core/lib/profiling/timers.h
similarity index 95%
rename from src/core/profiling/timers.h
rename to src/core/lib/profiling/timers.h
index 6a188dc..1303593 100644
--- a/src/core/profiling/timers.h
+++ b/src/core/lib/profiling/timers.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_PROFILING_TIMERS_H
-#define GRPC_CORE_PROFILING_TIMERS_H
+#ifndef GRPC_CORE_LIB_PROFILING_TIMERS_H
+#define GRPC_CORE_LIB_PROFILING_TIMERS_H
 
 #ifdef __cplusplus
 extern "C" {
@@ -116,4 +116,4 @@
 #endif
 #endif
 
-#endif /* GRPC_CORE_PROFILING_TIMERS_H */
+#endif /* GRPC_CORE_LIB_PROFILING_TIMERS_H */
diff --git a/src/core/proto/grpc/lb/v0/load_balancer.pb.c b/src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c
similarity index 98%
rename from src/core/proto/grpc/lb/v0/load_balancer.pb.c
rename to src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c
index 59aae30..8f82141 100644
--- a/src/core/proto/grpc/lb/v0/load_balancer.pb.c
+++ b/src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c
@@ -33,7 +33,7 @@
 /* Automatically generated nanopb constant definitions */
 /* Generated by nanopb-0.3.5-dev */
 
-#include "src/core/proto/grpc/lb/v0/load_balancer.pb.h"
+#include "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h"
 
 #if PB_PROTO_HEADER_VERSION != 30
 #error Regenerate this file with the current version of nanopb generator.
diff --git a/src/core/proto/grpc/lb/v0/load_balancer.pb.h b/src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h
similarity index 100%
rename from src/core/proto/grpc/lb/v0/load_balancer.pb.h
rename to src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h
diff --git a/src/core/security/auth_filters.h b/src/core/lib/security/auth_filters.h
similarity index 89%
rename from src/core/security/auth_filters.h
rename to src/core/lib/security/auth_filters.h
index 1154a1d..162b60e 100644
--- a/src/core/security/auth_filters.h
+++ b/src/core/lib/security/auth_filters.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_SECURITY_AUTH_FILTERS_H
-#define GRPC_CORE_SECURITY_AUTH_FILTERS_H
+#ifndef GRPC_CORE_LIB_SECURITY_AUTH_FILTERS_H
+#define GRPC_CORE_LIB_SECURITY_AUTH_FILTERS_H
 
-#include "src/core/channel/channel_stack.h"
+#include "src/core/lib/channel/channel_stack.h"
 
 extern const grpc_channel_filter grpc_client_auth_filter;
 extern const grpc_channel_filter grpc_server_auth_filter;
 
-#endif /* GRPC_CORE_SECURITY_AUTH_FILTERS_H */
+#endif /* GRPC_CORE_LIB_SECURITY_AUTH_FILTERS_H */
diff --git a/src/core/security/b64.c b/src/core/lib/security/b64.c
similarity index 99%
rename from src/core/security/b64.c
rename to src/core/lib/security/b64.c
index c40b528..1d38795 100644
--- a/src/core/security/b64.c
+++ b/src/core/lib/security/b64.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/security/b64.h"
+#include "src/core/lib/security/b64.h"
 
 #include <stdint.h>
 #include <string.h>
diff --git a/src/core/security/b64.h b/src/core/lib/security/b64.h
similarity index 94%
rename from src/core/security/b64.h
rename to src/core/lib/security/b64.h
index d18f695..0bf372a 100644
--- a/src/core/security/b64.h
+++ b/src/core/lib/security/b64.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_SECURITY_B64_H
-#define GRPC_CORE_SECURITY_B64_H
+#ifndef GRPC_CORE_LIB_SECURITY_B64_H
+#define GRPC_CORE_LIB_SECURITY_B64_H
 
 #include <grpc/support/slice.h>
 
@@ -49,4 +49,4 @@
 gpr_slice grpc_base64_decode_with_len(const char *b64, size_t b64_len,
                                       int url_safe);
 
-#endif /* GRPC_CORE_SECURITY_B64_H */
+#endif /* GRPC_CORE_LIB_SECURITY_B64_H */
diff --git a/src/core/security/client_auth_filter.c b/src/core/lib/security/client_auth_filter.c
similarity index 95%
rename from src/core/security/client_auth_filter.c
rename to src/core/lib/security/client_auth_filter.c
index 332d425..b9e5bf0 100644
--- a/src/core/security/client_auth_filter.c
+++ b/src/core/lib/security/client_auth_filter.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/security/auth_filters.h"
+#include "src/core/lib/security/auth_filters.h"
 
 #include <string.h>
 
@@ -39,13 +39,13 @@
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/channel/channel_stack.h"
-#include "src/core/security/credentials.h"
-#include "src/core/security/security_connector.h"
-#include "src/core/security/security_context.h"
-#include "src/core/support/string.h"
-#include "src/core/surface/call.h"
-#include "src/core/transport/static_metadata.h"
+#include "src/core/lib/channel/channel_stack.h"
+#include "src/core/lib/security/credentials.h"
+#include "src/core/lib/security/security_connector.h"
+#include "src/core/lib/security/security_context.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/surface/call.h"
+#include "src/core/lib/transport/static_metadata.h"
 
 #define MAX_CREDENTIALS_METADATA_COUNT 4
 
@@ -331,6 +331,6 @@
 
 const grpc_channel_filter grpc_client_auth_filter = {
     auth_start_transport_op, grpc_channel_next_op, sizeof(call_data),
-    init_call_elem, set_pollset, destroy_call_elem, sizeof(channel_data),
-    init_channel_elem, destroy_channel_elem, grpc_call_next_get_peer,
-    "client-auth"};
+    init_call_elem,          set_pollset,          destroy_call_elem,
+    sizeof(channel_data),    init_channel_elem,    destroy_channel_elem,
+    grpc_call_next_get_peer, "client-auth"};
diff --git a/src/core/security/credentials.c b/src/core/lib/security/credentials.c
similarity index 97%
rename from src/core/security/credentials.c
rename to src/core/lib/security/credentials.c
index b4fa616..99a07e5 100644
--- a/src/core/security/credentials.c
+++ b/src/core/lib/security/credentials.c
@@ -31,18 +31,19 @@
  *
  */
 
-#include "src/core/security/credentials.h"
+#include "src/core/lib/security/credentials.h"
 
 #include <stdio.h>
 #include <string.h>
 
-#include "src/core/channel/channel_args.h"
-#include "src/core/channel/http_client_filter.h"
-#include "src/core/httpcli/httpcli.h"
-#include "src/core/iomgr/executor.h"
-#include "src/core/json/json.h"
-#include "src/core/support/string.h"
-#include "src/core/surface/api_trace.h"
+#include "src/core/lib/channel/channel_args.h"
+#include "src/core/lib/channel/http_client_filter.h"
+#include "src/core/lib/http/httpcli.h"
+#include "src/core/lib/http/parser.h"
+#include "src/core/lib/iomgr/executor.h"
+#include "src/core/lib/json/json.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/surface/api_trace.h"
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
@@ -539,7 +540,7 @@
 
 grpc_credentials_status
 grpc_oauth2_token_fetcher_credentials_parse_server_response(
-    const grpc_httpcli_response *response, grpc_credentials_md_store **token_md,
+    const grpc_http_response *response, grpc_credentials_md_store **token_md,
     gpr_timespec *token_lifetime) {
   char *null_terminated_body = NULL;
   char *new_access_token = NULL;
@@ -629,7 +630,7 @@
 
 static void on_oauth2_token_fetcher_http_response(
     grpc_exec_ctx *exec_ctx, void *user_data,
-    const grpc_httpcli_response *response) {
+    const grpc_http_response *response) {
   grpc_credentials_metadata_request *r =
       (grpc_credentials_metadata_request *)user_data;
   grpc_oauth2_token_fetcher_credentials *c =
@@ -706,13 +707,13 @@
     grpc_exec_ctx *exec_ctx, grpc_credentials_metadata_request *metadata_req,
     grpc_httpcli_context *httpcli_context, grpc_pollset *pollset,
     grpc_httpcli_response_cb response_cb, gpr_timespec deadline) {
-  grpc_httpcli_header header = {"Metadata-Flavor", "Google"};
+  grpc_http_header header = {"Metadata-Flavor", "Google"};
   grpc_httpcli_request request;
   memset(&request, 0, sizeof(grpc_httpcli_request));
   request.host = GRPC_COMPUTE_ENGINE_METADATA_HOST;
-  request.path = GRPC_COMPUTE_ENGINE_METADATA_TOKEN_PATH;
-  request.hdr_count = 1;
-  request.hdrs = &header;
+  request.http.path = GRPC_COMPUTE_ENGINE_METADATA_TOKEN_PATH;
+  request.http.hdr_count = 1;
+  request.http.hdrs = &header;
   grpc_httpcli_get(exec_ctx, httpcli_context, pollset, &request, deadline,
                    response_cb, metadata_req);
 }
@@ -747,8 +748,8 @@
     grpc_httpcli_response_cb response_cb, gpr_timespec deadline) {
   grpc_google_refresh_token_credentials *c =
       (grpc_google_refresh_token_credentials *)metadata_req->creds;
-  grpc_httpcli_header header = {"Content-Type",
-                                "application/x-www-form-urlencoded"};
+  grpc_http_header header = {"Content-Type",
+                             "application/x-www-form-urlencoded"};
   grpc_httpcli_request request;
   char *body = NULL;
   gpr_asprintf(&body, GRPC_REFRESH_TOKEN_POST_BODY_FORMAT_STRING,
@@ -756,9 +757,9 @@
                c->refresh_token.refresh_token);
   memset(&request, 0, sizeof(grpc_httpcli_request));
   request.host = GRPC_GOOGLE_OAUTH2_SERVICE_HOST;
-  request.path = GRPC_GOOGLE_OAUTH2_SERVICE_TOKEN_PATH;
-  request.hdr_count = 1;
-  request.hdrs = &header;
+  request.http.path = GRPC_GOOGLE_OAUTH2_SERVICE_TOKEN_PATH;
+  request.http.hdr_count = 1;
+  request.http.hdrs = &header;
   request.handshaker = &grpc_httpcli_ssl;
   grpc_httpcli_post(exec_ctx, httpcli_context, pollset, &request, body,
                     strlen(body), deadline, response_cb, metadata_req);
diff --git a/src/core/security/credentials.h b/src/core/lib/security/credentials.h
similarity index 96%
rename from src/core/security/credentials.h
rename to src/core/lib/security/credentials.h
index 133aa9d..7168b98 100644
--- a/src/core/security/credentials.h
+++ b/src/core/lib/security/credentials.h
@@ -31,19 +31,20 @@
  *
  */
 
-#ifndef GRPC_CORE_SECURITY_CREDENTIALS_H
-#define GRPC_CORE_SECURITY_CREDENTIALS_H
+#ifndef GRPC_CORE_LIB_SECURITY_CREDENTIALS_H
+#define GRPC_CORE_LIB_SECURITY_CREDENTIALS_H
 
-#include "src/core/transport/metadata_batch.h"
 #include <grpc/grpc.h>
 #include <grpc/grpc_security.h>
 #include <grpc/support/sync.h>
+#include "src/core/lib/transport/metadata_batch.h"
 
-#include "src/core/httpcli/httpcli.h"
-#include "src/core/security/json_token.h"
-#include "src/core/security/security_connector.h"
+#include "src/core/lib/http/httpcli.h"
+#include "src/core/lib/http/parser.h"
+#include "src/core/lib/security/json_token.h"
+#include "src/core/lib/security/security_connector.h"
 
-struct grpc_httpcli_response;
+struct grpc_http_response;
 
 /* --- Constants. --- */
 
@@ -207,7 +208,7 @@
 /* Exposed for testing only. */
 grpc_credentials_status
 grpc_oauth2_token_fetcher_credentials_parse_server_response(
-    const struct grpc_httpcli_response *response,
+    const struct grpc_http_response *response,
     grpc_credentials_md_store **token_md, gpr_timespec *token_lifetime);
 
 void grpc_flush_cached_google_default_credentials(void);
@@ -373,4 +374,4 @@
   grpc_credentials_md_store *plugin_md;
 } grpc_plugin_credentials;
 
-#endif /* GRPC_CORE_SECURITY_CREDENTIALS_H */
+#endif /* GRPC_CORE_LIB_SECURITY_CREDENTIALS_H */
diff --git a/src/core/security/credentials_metadata.c b/src/core/lib/security/credentials_metadata.c
similarity index 97%
rename from src/core/security/credentials_metadata.c
rename to src/core/lib/security/credentials_metadata.c
index b8a132f..c3bfcb1 100644
--- a/src/core/security/credentials_metadata.c
+++ b/src/core/lib/security/credentials_metadata.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/security/credentials.h"
+#include "src/core/lib/security/credentials.h"
 
 #include <grpc/support/alloc.h>
 
diff --git a/src/core/security/credentials_posix.c b/src/core/lib/security/credentials_posix.c
similarity index 92%
rename from src/core/security/credentials_posix.c
rename to src/core/lib/security/credentials_posix.c
index 0c92bd4..b758cd0 100644
--- a/src/core/security/credentials_posix.c
+++ b/src/core/lib/security/credentials_posix.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,14 +35,14 @@
 
 #ifdef GPR_POSIX_FILE
 
-#include "src/core/security/credentials.h"
+#include "src/core/lib/security/credentials.h"
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/support/env.h"
-#include "src/core/support/string.h"
+#include "src/core/lib/support/env.h"
+#include "src/core/lib/support/string.h"
 
 char *grpc_get_well_known_google_credentials_file_path_impl(void) {
   char *result = NULL;
diff --git a/src/core/security/credentials_win32.c b/src/core/lib/security/credentials_win32.c
similarity index 92%
rename from src/core/security/credentials_win32.c
rename to src/core/lib/security/credentials_win32.c
index 8ee9f70..a225ab0 100644
--- a/src/core/security/credentials_win32.c
+++ b/src/core/lib/security/credentials_win32.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,14 +35,14 @@
 
 #ifdef GPR_WIN32
 
-#include "src/core/security/credentials.h"
+#include "src/core/lib/security/credentials.h"
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/support/env.h"
-#include "src/core/support/string.h"
+#include "src/core/lib/support/env.h"
+#include "src/core/lib/support/string.h"
 
 char *grpc_get_well_known_google_credentials_file_path_impl(void) {
   char *result = NULL;
diff --git a/src/core/security/google_default_credentials.c b/src/core/lib/security/google_default_credentials.c
similarity index 95%
rename from src/core/security/google_default_credentials.c
rename to src/core/lib/security/google_default_credentials.c
index 1f4f3e4..5c34228 100644
--- a/src/core/security/google_default_credentials.c
+++ b/src/core/lib/security/google_default_credentials.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/security/credentials.h"
+#include "src/core/lib/security/credentials.h"
 
 #include <string.h>
 
@@ -39,10 +39,11 @@
 #include <grpc/support/log.h>
 #include <grpc/support/sync.h>
 
-#include "src/core/httpcli/httpcli.h"
-#include "src/core/support/env.h"
-#include "src/core/support/load_file.h"
-#include "src/core/surface/api_trace.h"
+#include "src/core/lib/http/httpcli.h"
+#include "src/core/lib/http/parser.h"
+#include "src/core/lib/support/env.h"
+#include "src/core/lib/support/load_file.h"
+#include "src/core/lib/surface/api_trace.h"
 
 /* -- Constants. -- */
 
@@ -66,14 +67,14 @@
 
 static void on_compute_engine_detection_http_response(
     grpc_exec_ctx *exec_ctx, void *user_data,
-    const grpc_httpcli_response *response) {
+    const grpc_http_response *response) {
   compute_engine_detector *detector = (compute_engine_detector *)user_data;
   if (response != NULL && response->status == 200 && response->hdr_count > 0) {
     /* Internet providers can return a generic response to all requests, so
        it is necessary to check that metadata header is present also. */
     size_t i;
     for (i = 0; i < response->hdr_count; i++) {
-      grpc_httpcli_header *header = &response->hdrs[i];
+      grpc_http_header *header = &response->hdrs[i];
       if (strcmp(header->key, "Metadata-Flavor") == 0 &&
           strcmp(header->value, "Google") == 0) {
         detector->success = 1;
@@ -109,7 +110,7 @@
 
   memset(&request, 0, sizeof(grpc_httpcli_request));
   request.host = GRPC_COMPUTE_ENGINE_DETECTION_HOST;
-  request.path = "/";
+  request.http.path = "/";
 
   grpc_httpcli_context_init(&context);
 
diff --git a/src/core/security/handshake.c b/src/core/lib/security/handshake.c
similarity index 98%
rename from src/core/security/handshake.c
rename to src/core/lib/security/handshake.c
index b5bb666..adb6d7f 100644
--- a/src/core/security/handshake.c
+++ b/src/core/lib/security/handshake.c
@@ -31,16 +31,16 @@
  *
  */
 
-#include "src/core/security/handshake.h"
+#include "src/core/lib/security/handshake.h"
 
 #include <stdbool.h>
 #include <string.h>
 
-#include "src/core/security/security_context.h"
-#include "src/core/security/secure_endpoint.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/slice_buffer.h>
+#include "src/core/lib/security/secure_endpoint.h"
+#include "src/core/lib/security/security_context.h"
 
 #define GRPC_INITIAL_HANDSHAKE_BUFFER_SIZE 256
 
diff --git a/src/core/security/handshake.h b/src/core/lib/security/handshake.h
similarity index 90%
rename from src/core/security/handshake.h
rename to src/core/lib/security/handshake.h
index 4872045..b5d7bb3 100644
--- a/src/core/security/handshake.h
+++ b/src/core/lib/security/handshake.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_SECURITY_HANDSHAKE_H
-#define GRPC_CORE_SECURITY_HANDSHAKE_H
+#ifndef GRPC_CORE_LIB_SECURITY_HANDSHAKE_H
+#define GRPC_CORE_LIB_SECURITY_HANDSHAKE_H
 
-#include "src/core/iomgr/endpoint.h"
-#include "src/core/security/security_connector.h"
+#include "src/core/lib/iomgr/endpoint.h"
+#include "src/core/lib/security/security_connector.h"
 
 /* Calls the callback upon completion. Takes owership of handshaker. */
 void grpc_do_security_handshake(grpc_exec_ctx *exec_ctx,
@@ -48,4 +48,4 @@
 
 void grpc_security_handshake_shutdown(grpc_exec_ctx *exec_ctx, void *handshake);
 
-#endif /* GRPC_CORE_SECURITY_HANDSHAKE_H */
+#endif /* GRPC_CORE_LIB_SECURITY_HANDSHAKE_H */
diff --git a/src/core/security/json_token.c b/src/core/lib/security/json_token.c
similarity index 98%
rename from src/core/security/json_token.c
rename to src/core/lib/security/json_token.c
index 372e5bf..9705428 100644
--- a/src/core/security/json_token.c
+++ b/src/core/lib/security/json_token.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/security/json_token.h"
+#include "src/core/lib/security/json_token.h"
 
 #include <string.h>
 
@@ -39,8 +39,8 @@
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/security/b64.h"
-#include "src/core/support/string.h"
+#include "src/core/lib/security/b64.h"
+#include "src/core/lib/support/string.h"
 
 #include <openssl/bio.h>
 #include <openssl/evp.h>
diff --git a/src/core/security/json_token.h b/src/core/lib/security/json_token.h
similarity index 95%
rename from src/core/security/json_token.h
rename to src/core/lib/security/json_token.h
index d183f9b..376fb03 100644
--- a/src/core/security/json_token.h
+++ b/src/core/lib/security/json_token.h
@@ -31,13 +31,13 @@
  *
  */
 
-#ifndef GRPC_CORE_SECURITY_JSON_TOKEN_H
-#define GRPC_CORE_SECURITY_JSON_TOKEN_H
+#ifndef GRPC_CORE_LIB_SECURITY_JSON_TOKEN_H
+#define GRPC_CORE_LIB_SECURITY_JSON_TOKEN_H
 
 #include <grpc/support/slice.h>
 #include <openssl/rsa.h>
 
-#include "src/core/json/json.h"
+#include "src/core/lib/json/json.h"
 
 /* --- Constants. --- */
 
@@ -115,4 +115,4 @@
 /* Destructs the object. */
 void grpc_auth_refresh_token_destruct(grpc_auth_refresh_token *refresh_token);
 
-#endif /* GRPC_CORE_SECURITY_JSON_TOKEN_H */
+#endif /* GRPC_CORE_LIB_SECURITY_JSON_TOKEN_H */
diff --git a/src/core/security/jwt_verifier.c b/src/core/lib/security/jwt_verifier.c
similarity index 97%
rename from src/core/security/jwt_verifier.c
rename to src/core/lib/security/jwt_verifier.c
index 928c6c1..460b92f 100644
--- a/src/core/security/jwt_verifier.c
+++ b/src/core/lib/security/jwt_verifier.c
@@ -31,14 +31,14 @@
  *
  */
 
-#include "src/core/security/jwt_verifier.h"
+#include "src/core/lib/security/jwt_verifier.h"
 
 #include <limits.h>
 #include <string.h>
 
-#include "src/core/httpcli/httpcli.h"
-#include "src/core/security/b64.h"
-#include "src/core/tsi/ssl_types.h"
+#include "src/core/lib/http/httpcli.h"
+#include "src/core/lib/security/b64.h"
+#include "src/core/lib/tsi/ssl_types.h"
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
@@ -635,11 +635,11 @@
   jwks_uri += 8;
   req.handshaker = &grpc_httpcli_ssl;
   req.host = gpr_strdup(jwks_uri);
-  req.path = strchr(jwks_uri, '/');
-  if (req.path == NULL) {
-    req.path = "";
+  req.http.path = strchr(jwks_uri, '/');
+  if (req.http.path == NULL) {
+    req.http.path = "";
   } else {
-    *(req.host + (req.path - jwks_uri)) = '\0';
+    *(req.host + (req.http.path - jwks_uri)) = '\0';
   }
   grpc_httpcli_get(
       exec_ctx, &ctx->verifier->http_ctx, ctx->pollset, &req,
@@ -725,20 +725,20 @@
     req.host = gpr_strdup(mapping->key_url_prefix);
     path_prefix = strchr(req.host, '/');
     if (path_prefix == NULL) {
-      gpr_asprintf(&req.path, "/%s", iss);
+      gpr_asprintf(&req.http.path, "/%s", iss);
     } else {
       *(path_prefix++) = '\0';
-      gpr_asprintf(&req.path, "/%s/%s", path_prefix, iss);
+      gpr_asprintf(&req.http.path, "/%s/%s", path_prefix, iss);
     }
     http_cb = on_keys_retrieved;
   } else {
     req.host = gpr_strdup(strstr(iss, "https://") == iss ? iss + 8 : iss);
     path_prefix = strchr(req.host, '/');
     if (path_prefix == NULL) {
-      req.path = gpr_strdup(GRPC_OPENID_CONFIG_URL_SUFFIX);
+      req.http.path = gpr_strdup(GRPC_OPENID_CONFIG_URL_SUFFIX);
     } else {
       *(path_prefix++) = 0;
-      gpr_asprintf(&req.path, "/%s%s", path_prefix,
+      gpr_asprintf(&req.http.path, "/%s%s", path_prefix,
                    GRPC_OPENID_CONFIG_URL_SUFFIX);
     }
     http_cb = on_openid_config_retrieved;
@@ -749,7 +749,7 @@
       gpr_time_add(gpr_now(GPR_CLOCK_REALTIME), grpc_jwt_verifier_max_delay),
       http_cb, ctx);
   gpr_free(req.host);
-  gpr_free(req.path);
+  gpr_free(req.http.path);
   return;
 
 error:
diff --git a/src/core/security/jwt_verifier.h b/src/core/lib/security/jwt_verifier.h
similarity index 95%
rename from src/core/security/jwt_verifier.h
rename to src/core/lib/security/jwt_verifier.h
index d898d21..28a9eff 100644
--- a/src/core/security/jwt_verifier.h
+++ b/src/core/lib/security/jwt_verifier.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_SECURITY_JWT_VERIFIER_H
-#define GRPC_CORE_SECURITY_JWT_VERIFIER_H
+#ifndef GRPC_CORE_LIB_SECURITY_JWT_VERIFIER_H
+#define GRPC_CORE_LIB_SECURITY_JWT_VERIFIER_H
 
-#include "src/core/iomgr/pollset.h"
-#include "src/core/json/json.h"
+#include "src/core/lib/iomgr/pollset.h"
+#include "src/core/lib/json/json.h"
 
 #include <grpc/support/slice.h>
 #include <grpc/support/time.h>
@@ -133,4 +133,4 @@
 grpc_jwt_verifier_status grpc_jwt_claims_check(const grpc_jwt_claims *claims,
                                                const char *audience);
 
-#endif /* GRPC_CORE_SECURITY_JWT_VERIFIER_H */
+#endif /* GRPC_CORE_LIB_SECURITY_JWT_VERIFIER_H */
diff --git a/src/core/security/secure_endpoint.c b/src/core/lib/security/secure_endpoint.c
similarity index 97%
rename from src/core/security/secure_endpoint.c
rename to src/core/lib/security/secure_endpoint.c
index d11c43b..e233b08 100644
--- a/src/core/security/secure_endpoint.c
+++ b/src/core/lib/security/secure_endpoint.c
@@ -31,15 +31,15 @@
  *
  */
 
-#include "src/core/security/secure_endpoint.h"
-#include "src/core/support/string.h"
+#include "src/core/lib/security/secure_endpoint.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include <grpc/support/slice_buffer.h>
 #include <grpc/support/slice.h>
+#include <grpc/support/slice_buffer.h>
 #include <grpc/support/sync.h>
-#include "src/core/tsi/transport_security_interface.h"
-#include "src/core/debug/trace.h"
+#include "src/core/lib/debug/trace.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/tsi/transport_security_interface.h"
 
 #define STAGING_BUFFER_SIZE 8192
 
@@ -354,8 +354,9 @@
 }
 
 static const grpc_endpoint_vtable vtable = {
-    endpoint_read, endpoint_write, endpoint_add_to_pollset,
-    endpoint_add_to_pollset_set, endpoint_shutdown, endpoint_destroy,
+    endpoint_read,           endpoint_write,
+    endpoint_add_to_pollset, endpoint_add_to_pollset_set,
+    endpoint_shutdown,       endpoint_destroy,
     endpoint_get_peer};
 
 grpc_endpoint *grpc_secure_endpoint_create(
diff --git a/src/core/security/secure_endpoint.h b/src/core/lib/security/secure_endpoint.h
similarity index 90%
rename from src/core/security/secure_endpoint.h
rename to src/core/lib/security/secure_endpoint.h
index 5176ef2..57bd160 100644
--- a/src/core/security/secure_endpoint.h
+++ b/src/core/lib/security/secure_endpoint.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_SECURITY_SECURE_ENDPOINT_H
-#define GRPC_CORE_SECURITY_SECURE_ENDPOINT_H
+#ifndef GRPC_CORE_LIB_SECURITY_SECURE_ENDPOINT_H
+#define GRPC_CORE_LIB_SECURITY_SECURE_ENDPOINT_H
 
-#include "src/core/iomgr/endpoint.h"
 #include <grpc/support/slice.h>
+#include "src/core/lib/iomgr/endpoint.h"
 
 struct tsi_frame_protector;
 
@@ -46,4 +46,4 @@
     struct tsi_frame_protector *protector, grpc_endpoint *to_wrap,
     gpr_slice *leftover_slices, size_t leftover_nslices);
 
-#endif /* GRPC_CORE_SECURITY_SECURE_ENDPOINT_H */
+#endif /* GRPC_CORE_LIB_SECURITY_SECURE_ENDPOINT_H */
diff --git a/src/core/security/security_connector.c b/src/core/lib/security/security_connector.c
similarity index 98%
rename from src/core/security/security_connector.c
rename to src/core/lib/security/security_connector.c
index fbec263..5474bc3 100644
--- a/src/core/security/security_connector.c
+++ b/src/core/lib/security/security_connector.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/security/security_connector.h"
+#include "src/core/lib/security/security_connector.h"
 
 #include <stdbool.h>
 #include <string.h>
@@ -42,16 +42,16 @@
 #include <grpc/support/slice_buffer.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/security/credentials.h"
-#include "src/core/security/handshake.h"
-#include "src/core/security/secure_endpoint.h"
-#include "src/core/security/security_context.h"
-#include "src/core/support/env.h"
-#include "src/core/support/load_file.h"
-#include "src/core/support/string.h"
-#include "src/core/transport/chttp2/alpn.h"
-#include "src/core/tsi/fake_transport_security.h"
-#include "src/core/tsi/ssl_transport_security.h"
+#include "src/core/lib/security/credentials.h"
+#include "src/core/lib/security/handshake.h"
+#include "src/core/lib/security/secure_endpoint.h"
+#include "src/core/lib/security/security_context.h"
+#include "src/core/lib/support/env.h"
+#include "src/core/lib/support/load_file.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/transport/chttp2/alpn.h"
+#include "src/core/lib/tsi/fake_transport_security.h"
+#include "src/core/lib/tsi/ssl_transport_security.h"
 
 /* -- Constants. -- */
 
diff --git a/src/core/security/security_connector.h b/src/core/lib/security/security_connector.h
similarity index 97%
rename from src/core/security/security_connector.h
rename to src/core/lib/security/security_connector.h
index 6f915eb..d50091c 100644
--- a/src/core/security/security_connector.h
+++ b/src/core/lib/security/security_connector.h
@@ -31,13 +31,13 @@
  *
  */
 
-#ifndef GRPC_CORE_SECURITY_SECURITY_CONNECTOR_H
-#define GRPC_CORE_SECURITY_SECURITY_CONNECTOR_H
+#ifndef GRPC_CORE_LIB_SECURITY_SECURITY_CONNECTOR_H
+#define GRPC_CORE_LIB_SECURITY_SECURITY_CONNECTOR_H
 
 #include <grpc/grpc_security.h>
-#include "src/core/iomgr/endpoint.h"
-#include "src/core/iomgr/tcp_server.h"
-#include "src/core/tsi/transport_security_interface.h"
+#include "src/core/lib/iomgr/endpoint.h"
+#include "src/core/lib/iomgr/tcp_server.h"
+#include "src/core/lib/tsi/transport_security_interface.h"
 
 /* --- status enum. --- */
 
@@ -263,4 +263,4 @@
     const grpc_auth_context *auth_context);
 void tsi_shallow_peer_destruct(tsi_peer *peer);
 
-#endif /* GRPC_CORE_SECURITY_SECURITY_CONNECTOR_H */
+#endif /* GRPC_CORE_LIB_SECURITY_SECURITY_CONNECTOR_H */
diff --git a/src/core/security/security_context.c b/src/core/lib/security/security_context.c
similarity index 98%
rename from src/core/security/security_context.c
rename to src/core/lib/security/security_context.c
index a71b3bc..0e66373 100644
--- a/src/core/security/security_context.c
+++ b/src/core/lib/security/security_context.c
@@ -33,10 +33,10 @@
 
 #include <string.h>
 
-#include "src/core/security/security_context.h"
-#include "src/core/surface/api_trace.h"
-#include "src/core/surface/call.h"
-#include "src/core/support/string.h"
+#include "src/core/lib/security/security_context.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/surface/api_trace.h"
+#include "src/core/lib/surface/call.h"
 
 #include <grpc/grpc_security.h>
 #include <grpc/support/alloc.h>
diff --git a/src/core/security/security_context.h b/src/core/lib/security/security_context.h
similarity index 94%
rename from src/core/security/security_context.h
rename to src/core/lib/security/security_context.h
index 61601f5..e9e4e50 100644
--- a/src/core/security/security_context.h
+++ b/src/core/lib/security/security_context.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_SECURITY_SECURITY_CONTEXT_H
-#define GRPC_CORE_SECURITY_SECURITY_CONTEXT_H
+#ifndef GRPC_CORE_LIB_SECURITY_SECURITY_CONTEXT_H
+#define GRPC_CORE_LIB_SECURITY_SECURITY_CONTEXT_H
 
-#include "src/core/iomgr/pollset.h"
-#include "src/core/security/credentials.h"
+#include "src/core/lib/iomgr/pollset.h"
+#include "src/core/lib/security/credentials.h"
 
 /* --- grpc_auth_context ---
 
@@ -111,4 +111,4 @@
 grpc_auth_context *grpc_find_auth_context_in_args(
     const grpc_channel_args *args);
 
-#endif /* GRPC_CORE_SECURITY_SECURITY_CONTEXT_H */
+#endif /* GRPC_CORE_LIB_SECURITY_SECURITY_CONTEXT_H */
diff --git a/src/core/security/server_auth_filter.c b/src/core/lib/security/server_auth_filter.c
similarity index 96%
rename from src/core/security/server_auth_filter.c
rename to src/core/lib/security/server_auth_filter.c
index 3d8e5e8..158cde0 100644
--- a/src/core/security/server_auth_filter.c
+++ b/src/core/lib/security/server_auth_filter.c
@@ -33,9 +33,9 @@
 
 #include <string.h>
 
-#include "src/core/security/auth_filters.h"
-#include "src/core/security/credentials.h"
-#include "src/core/security/security_context.h"
+#include "src/core/lib/security/auth_filters.h"
+#include "src/core/lib/security/credentials.h"
+#include "src/core/lib/security/security_context.h"
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
@@ -259,6 +259,6 @@
 
 const grpc_channel_filter grpc_server_auth_filter = {
     auth_start_transport_op, grpc_channel_next_op, sizeof(call_data),
-    init_call_elem, set_pollset, destroy_call_elem, sizeof(channel_data),
-    init_channel_elem, destroy_channel_elem, grpc_call_next_get_peer,
-    "server-auth"};
+    init_call_elem,          set_pollset,          destroy_call_elem,
+    sizeof(channel_data),    init_channel_elem,    destroy_channel_elem,
+    grpc_call_next_get_peer, "server-auth"};
diff --git a/src/core/security/server_secure_chttp2.c b/src/core/lib/security/server_secure_chttp2.c
similarity index 93%
rename from src/core/security/server_secure_chttp2.c
rename to src/core/lib/security/server_secure_chttp2.c
index 009ec95..7c9dd22 100644
--- a/src/core/security/server_secure_chttp2.c
+++ b/src/core/lib/security/server_secure_chttp2.c
@@ -35,22 +35,22 @@
 
 #include <string.h>
 
-#include "src/core/channel/channel_args.h"
-#include "src/core/channel/http_server_filter.h"
-#include "src/core/iomgr/endpoint.h"
-#include "src/core/iomgr/resolve_address.h"
-#include "src/core/iomgr/tcp_server.h"
-#include "src/core/security/auth_filters.h"
-#include "src/core/security/credentials.h"
-#include "src/core/security/security_connector.h"
-#include "src/core/security/security_context.h"
-#include "src/core/surface/api_trace.h"
-#include "src/core/surface/server.h"
-#include "src/core/transport/chttp2_transport.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/useful.h>
+#include "src/core/lib/channel/channel_args.h"
+#include "src/core/lib/channel/http_server_filter.h"
+#include "src/core/lib/iomgr/endpoint.h"
+#include "src/core/lib/iomgr/resolve_address.h"
+#include "src/core/lib/iomgr/tcp_server.h"
+#include "src/core/lib/security/auth_filters.h"
+#include "src/core/lib/security/credentials.h"
+#include "src/core/lib/security/security_connector.h"
+#include "src/core/lib/security/security_context.h"
+#include "src/core/lib/surface/api_trace.h"
+#include "src/core/lib/surface/server.h"
+#include "src/core/lib/transport/chttp2_transport.h"
 
 typedef struct grpc_server_secure_state {
   grpc_server *server;
diff --git a/src/core/statistics/census_init.c b/src/core/lib/statistics/census_init.c
similarity index 91%
rename from src/core/statistics/census_init.c
rename to src/core/lib/statistics/census_init.c
index b6a962f..bbecd62 100644
--- a/src/core/statistics/census_init.c
+++ b/src/core/lib/statistics/census_init.c
@@ -31,11 +31,11 @@
  *
  */
 
-#include "src/core/statistics/census_interface.h"
+#include "src/core/lib/statistics/census_interface.h"
 
 #include <grpc/support/log.h>
-#include "src/core/statistics/census_rpc_stats.h"
-#include "src/core/statistics/census_tracing.h"
+#include "src/core/lib/statistics/census_rpc_stats.h"
+#include "src/core/lib/statistics/census_tracing.h"
 
 void census_init(void) {
   census_tracing_init();
diff --git a/src/core/statistics/census_interface.h b/src/core/lib/statistics/census_interface.h
similarity index 94%
rename from src/core/statistics/census_interface.h
rename to src/core/lib/statistics/census_interface.h
index ce8ff92..b3b3439 100644
--- a/src/core/statistics/census_interface.h
+++ b/src/core/lib/statistics/census_interface.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_STATISTICS_CENSUS_INTERFACE_H
-#define GRPC_CORE_STATISTICS_CENSUS_INTERFACE_H
+#ifndef GRPC_CORE_LIB_STATISTICS_CENSUS_INTERFACE_H
+#define GRPC_CORE_LIB_STATISTICS_CENSUS_INTERFACE_H
 
 #include <grpc/support/port_platform.h>
 
@@ -73,4 +73,4 @@
 /* Ends tracing. Calling this function will invalidate the input op_id. */
 void census_tracing_end_op(census_op_id op_id);
 
-#endif /* GRPC_CORE_STATISTICS_CENSUS_INTERFACE_H */
+#endif /* GRPC_CORE_LIB_STATISTICS_CENSUS_INTERFACE_H */
diff --git a/src/core/statistics/census_log.c b/src/core/lib/statistics/census_log.c
similarity index 99%
rename from src/core/statistics/census_log.c
rename to src/core/lib/statistics/census_log.c
index 257ba58..1fb942a 100644
--- a/src/core/statistics/census_log.c
+++ b/src/core/lib/statistics/census_log.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -89,8 +89,7 @@
    include the name of the structure, which will be passed as the first
    argument. E.g. cl_block_initialize() will initialize a cl_block.
 */
-#include "src/core/statistics/census_log.h"
-#include <string.h>
+#include "src/core/lib/statistics/census_log.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/atm.h>
 #include <grpc/support/cpu.h>
@@ -98,6 +97,7 @@
 #include <grpc/support/port_platform.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/useful.h>
+#include <string.h>
 
 /* End of platform specific code */
 
diff --git a/src/core/statistics/census_log.h b/src/core/lib/statistics/census_log.h
similarity index 96%
rename from src/core/statistics/census_log.h
rename to src/core/lib/statistics/census_log.h
index e7ce0d4..c3fbd55 100644
--- a/src/core/statistics/census_log.h
+++ b/src/core/lib/statistics/census_log.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_STATISTICS_CENSUS_LOG_H
-#define GRPC_CORE_STATISTICS_CENSUS_LOG_H
+#ifndef GRPC_CORE_LIB_STATISTICS_CENSUS_LOG_H
+#define GRPC_CORE_LIB_STATISTICS_CENSUS_LOG_H
 
 #include <stddef.h>
 
@@ -88,4 +88,4 @@
    out-of-space. */
 int census_log_out_of_space_count(void);
 
-#endif /* GRPC_CORE_STATISTICS_CENSUS_LOG_H */
+#endif /* GRPC_CORE_LIB_STATISTICS_CENSUS_LOG_H */
diff --git a/src/core/statistics/census_rpc_stats.c b/src/core/lib/statistics/census_rpc_stats.c
similarity index 93%
rename from src/core/statistics/census_rpc_stats.c
rename to src/core/lib/statistics/census_rpc_stats.c
index 524a607..2182561 100644
--- a/src/core/statistics/census_rpc_stats.c
+++ b/src/core/lib/statistics/census_rpc_stats.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -33,16 +33,16 @@
 
 #include <string.h>
 
-#include "src/core/statistics/census_interface.h"
-#include "src/core/statistics/census_rpc_stats.h"
-#include "src/core/statistics/hash_table.h"
-#include "src/core/statistics/census_tracing.h"
-#include "src/core/statistics/window_stats.h"
-#include "src/core/support/murmur_hash.h"
-#include "src/core/support/string.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/sync.h>
+#include "src/core/lib/statistics/census_interface.h"
+#include "src/core/lib/statistics/census_rpc_stats.h"
+#include "src/core/lib/statistics/census_tracing.h"
+#include "src/core/lib/statistics/hash_table.h"
+#include "src/core/lib/statistics/window_stats.h"
+#include "src/core/lib/support/murmur_hash.h"
+#include "src/core/lib/support/string.h"
 
 #define NUM_INTERVALS 3
 #define MINUTE_INTERVAL 0
@@ -85,8 +85,8 @@
 
 static const census_ht_option ht_opt = {
     CENSUS_HT_POINTER /* key type */, 1999 /* n_of_buckets */,
-    simple_hash /* hash function */, cmp_str_keys /* key comparator */,
-    delete_stats /* data deleter */, delete_key /* key deleter */
+    simple_hash /* hash function */,  cmp_str_keys /* key comparator */,
+    delete_stats /* data deleter */,  delete_key /* key deleter */
 };
 
 static void init_rpc_stats(void *stats) {
diff --git a/src/core/statistics/census_rpc_stats.h b/src/core/lib/statistics/census_rpc_stats.h
similarity index 94%
rename from src/core/statistics/census_rpc_stats.h
rename to src/core/lib/statistics/census_rpc_stats.h
index 4cf17d2..00bb482 100644
--- a/src/core/statistics/census_rpc_stats.h
+++ b/src/core/lib/statistics/census_rpc_stats.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_STATISTICS_CENSUS_RPC_STATS_H
-#define GRPC_CORE_STATISTICS_CENSUS_RPC_STATS_H
+#ifndef GRPC_CORE_LIB_STATISTICS_CENSUS_RPC_STATS_H
+#define GRPC_CORE_LIB_STATISTICS_CENSUS_RPC_STATS_H
 
-#include "src/core/statistics/census_interface.h"
 #include <grpc/support/port_platform.h>
+#include "src/core/lib/statistics/census_interface.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -98,4 +98,4 @@
 }
 #endif
 
-#endif /* GRPC_CORE_STATISTICS_CENSUS_RPC_STATS_H */
+#endif /* GRPC_CORE_LIB_STATISTICS_CENSUS_RPC_STATS_H */
diff --git a/src/core/statistics/census_tracing.c b/src/core/lib/statistics/census_tracing.c
similarity index 94%
rename from src/core/statistics/census_tracing.c
rename to src/core/lib/statistics/census_tracing.c
index dc0f8a2..b58ae73 100644
--- a/src/core/statistics/census_tracing.c
+++ b/src/core/lib/statistics/census_tracing.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,18 +31,18 @@
  *
  */
 
-#include "src/core/statistics/census_interface.h"
-#include "src/core/statistics/census_tracing.h"
+#include "src/core/lib/statistics/census_tracing.h"
+#include "src/core/lib/statistics/census_interface.h"
 
 #include <stdio.h>
 #include <string.h>
 
-#include "src/core/statistics/hash_table.h"
-#include "src/core/support/string.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/port_platform.h>
 #include <grpc/support/sync.h>
+#include "src/core/lib/statistics/hash_table.h"
+#include "src/core/lib/support/string.h"
 
 void census_trace_obj_destroy(census_trace_obj *obj) {
   census_trace_annotation *p = obj->annotations;
@@ -60,8 +60,11 @@
 }
 
 static const census_ht_option ht_opt = {
-    CENSUS_HT_UINT64 /* key type */, 571 /* n_of_buckets */, NULL /* hash */,
-    NULL /* compare_keys */, delete_trace_obj /* delete data */,
+    CENSUS_HT_UINT64 /* key type */,
+    571 /* n_of_buckets */,
+    NULL /* hash */,
+    NULL /* compare_keys */,
+    delete_trace_obj /* delete data */,
     NULL /* delete key */
 };
 
diff --git a/src/core/statistics/census_tracing.h b/src/core/lib/statistics/census_tracing.h
similarity index 94%
rename from src/core/statistics/census_tracing.h
rename to src/core/lib/statistics/census_tracing.h
index b611e95..a101abf 100644
--- a/src/core/statistics/census_tracing.h
+++ b/src/core/lib/statistics/census_tracing.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_STATISTICS_CENSUS_TRACING_H
-#define GRPC_CORE_STATISTICS_CENSUS_TRACING_H
+#ifndef GRPC_CORE_LIB_STATISTICS_CENSUS_TRACING_H
+#define GRPC_CORE_LIB_STATISTICS_CENSUS_TRACING_H
 
 #include <grpc/support/time.h>
-#include "src/core/statistics/census_rpc_stats.h"
+#include "src/core/lib/statistics/census_rpc_stats.h"
 
 /* WARNING: The data structures and APIs provided by this file are for GRPC
    library's internal use ONLY. They might be changed in backward-incompatible
@@ -93,4 +93,4 @@
 }
 #endif
 
-#endif /* GRPC_CORE_STATISTICS_CENSUS_TRACING_H */
+#endif /* GRPC_CORE_LIB_STATISTICS_CENSUS_TRACING_H */
diff --git a/src/core/statistics/hash_table.c b/src/core/lib/statistics/hash_table.c
similarity index 98%
rename from src/core/statistics/hash_table.c
rename to src/core/lib/statistics/hash_table.c
index 0cadcd4..18b7442 100644
--- a/src/core/statistics/hash_table.c
+++ b/src/core/lib/statistics/hash_table.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,13 +31,13 @@
  *
  */
 
-#include "src/core/statistics/hash_table.h"
+#include "src/core/lib/statistics/hash_table.h"
 
-#include <stdio.h>
 #include <stddef.h>
+#include <stdio.h>
 
-#include <grpc/support/log.h>
 #include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
 #include <grpc/support/port_platform.h>
 
 #define CENSUS_HT_NUM_BUCKETS 1999
diff --git a/src/core/statistics/hash_table.h b/src/core/lib/statistics/hash_table.h
similarity index 97%
rename from src/core/statistics/hash_table.h
rename to src/core/lib/statistics/hash_table.h
index f4bf2ba..8f74ec8 100644
--- a/src/core/statistics/hash_table.h
+++ b/src/core/lib/statistics/hash_table.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_STATISTICS_HASH_TABLE_H
-#define GRPC_CORE_STATISTICS_HASH_TABLE_H
+#ifndef GRPC_CORE_LIB_STATISTICS_HASH_TABLE_H
+#define GRPC_CORE_LIB_STATISTICS_HASH_TABLE_H
 
 #include <stddef.h>
 
@@ -128,4 +128,4 @@
    should not invalidate data entries. */
 uint64_t census_ht_for_all(const census_ht *ht, census_ht_itr_cb);
 
-#endif /* GRPC_CORE_STATISTICS_HASH_TABLE_H */
+#endif /* GRPC_CORE_LIB_STATISTICS_HASH_TABLE_H */
diff --git a/src/core/statistics/window_stats.c b/src/core/lib/statistics/window_stats.c
similarity index 99%
rename from src/core/statistics/window_stats.c
rename to src/core/lib/statistics/window_stats.c
index 3f29408..53427a2 100644
--- a/src/core/statistics/window_stats.c
+++ b/src/core/lib/statistics/window_stats.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,14 +31,14 @@
  *
  */
 
-#include "src/core/statistics/window_stats.h"
-#include <math.h>
-#include <stddef.h>
-#include <string.h>
+#include "src/core/lib/statistics/window_stats.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/time.h>
 #include <grpc/support/useful.h>
+#include <math.h>
+#include <stddef.h>
+#include <string.h>
 
 /* typedefs make typing long names easier. Use cws (for census_window_stats) */
 typedef census_window_stats_stat_info cws_stat_info;
diff --git a/src/core/statistics/window_stats.h b/src/core/lib/statistics/window_stats.h
similarity index 97%
rename from src/core/statistics/window_stats.h
rename to src/core/lib/statistics/window_stats.h
index 7742771..8dec50d 100644
--- a/src/core/statistics/window_stats.h
+++ b/src/core/lib/statistics/window_stats.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_STATISTICS_WINDOW_STATS_H
-#define GRPC_CORE_STATISTICS_WINDOW_STATS_H
+#ifndef GRPC_CORE_LIB_STATISTICS_WINDOW_STATS_H
+#define GRPC_CORE_LIB_STATISTICS_WINDOW_STATS_H
 
 #include <grpc/support/time.h>
 
@@ -170,4 +170,4 @@
    assertion failure). This function is thread-compatible. */
 void census_window_stats_destroy(struct census_window_stats *wstats);
 
-#endif /* GRPC_CORE_STATISTICS_WINDOW_STATS_H */
+#endif /* GRPC_CORE_LIB_STATISTICS_WINDOW_STATS_H */
diff --git a/src/core/support/alloc.c b/src/core/lib/support/alloc.c
similarity index 98%
rename from src/core/support/alloc.c
rename to src/core/lib/support/alloc.c
index b99584b..27fa6a9 100644
--- a/src/core/support/alloc.c
+++ b/src/core/lib/support/alloc.c
@@ -33,10 +33,10 @@
 
 #include <grpc/support/alloc.h>
 
-#include <stdlib.h>
 #include <grpc/support/log.h>
 #include <grpc/support/port_platform.h>
-#include "src/core/profiling/timers.h"
+#include <stdlib.h>
+#include "src/core/lib/profiling/timers.h"
 
 static gpr_allocation_functions g_alloc_functions = {malloc, realloc, free};
 
diff --git a/src/core/support/avl.c b/src/core/lib/support/avl.c
similarity index 100%
rename from src/core/support/avl.c
rename to src/core/lib/support/avl.c
diff --git a/src/core/support/backoff.c b/src/core/lib/support/backoff.c
similarity index 93%
rename from src/core/support/backoff.c
rename to src/core/lib/support/backoff.c
index 7458219..e89ef47 100644
--- a/src/core/support/backoff.c
+++ b/src/core/lib/support/backoff.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/support/backoff.h"
+#include "src/core/lib/support/backoff.h"
 
 #include <grpc/support/useful.h>
 
@@ -69,3 +69,8 @@
   return gpr_time_add(
       now, gpr_time_from_millis(backoff->current_timeout_millis, GPR_TIMESPAN));
 }
+
+void gpr_backoff_reset(gpr_backoff *backoff) {
+  // forces step() to return a timeout of min_timeout_millis
+  backoff->current_timeout_millis = 0;
+}
diff --git a/src/core/support/backoff.h b/src/core/lib/support/backoff.h
similarity index 90%
rename from src/core/support/backoff.h
rename to src/core/lib/support/backoff.h
index f7730fd..6d40c15 100644
--- a/src/core/support/backoff.h
+++ b/src/core/lib/support/backoff.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_SUPPORT_BACKOFF_H
-#define GRPC_CORE_SUPPORT_BACKOFF_H
+#ifndef GRPC_CORE_LIB_SUPPORT_BACKOFF_H
+#define GRPC_CORE_LIB_SUPPORT_BACKOFF_H
 
 #include <grpc/support/time.h>
 
@@ -61,5 +61,8 @@
 gpr_timespec gpr_backoff_begin(gpr_backoff *backoff, gpr_timespec now);
 /// Step a retry loop: returns a timespec for the NEXT retry
 gpr_timespec gpr_backoff_step(gpr_backoff *backoff, gpr_timespec now);
+/// Reset the backoff, so the next gpr_backoff_step will be a gpr_backoff_begin
+/// instead
+void gpr_backoff_reset(gpr_backoff *backoff);
 
-#endif /* GRPC_CORE_SUPPORT_BACKOFF_H */
+#endif /* GRPC_CORE_LIB_SUPPORT_BACKOFF_H */
diff --git a/src/core/support/block_annotate.h b/src/core/lib/support/block_annotate.h
similarity index 92%
rename from src/core/support/block_annotate.h
rename to src/core/lib/support/block_annotate.h
index 79a1803..bd30716 100644
--- a/src/core/support/block_annotate.h
+++ b/src/core/lib/support/block_annotate.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_SUPPORT_BLOCK_ANNOTATE_H
-#define GRPC_CORE_SUPPORT_BLOCK_ANNOTATE_H
+#ifndef GRPC_CORE_LIB_SUPPORT_BLOCK_ANNOTATE_H
+#define GRPC_CORE_LIB_SUPPORT_BLOCK_ANNOTATE_H
 
 /* These annotations identify the beginning and end of regions where
    the code may block for reasons other than synchronization functions.
@@ -45,4 +45,4 @@
   do {                                      \
   } while (0)
 
-#endif /* GRPC_CORE_SUPPORT_BLOCK_ANNOTATE_H */
+#endif /* GRPC_CORE_LIB_SUPPORT_BLOCK_ANNOTATE_H */
diff --git a/src/core/support/cmdline.c b/src/core/lib/support/cmdline.c
similarity index 98%
rename from src/core/support/cmdline.c
rename to src/core/lib/support/cmdline.c
index b517f30..35c4990 100644
--- a/src/core/support/cmdline.c
+++ b/src/core/lib/support/cmdline.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -37,10 +37,10 @@
 #include <stdio.h>
 #include <string.h>
 
-#include "src/core/support/string.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
+#include "src/core/lib/support/string.h"
 
 typedef enum { ARGTYPE_INT, ARGTYPE_BOOL, ARGTYPE_STRING } argtype;
 
diff --git a/src/core/support/cpu_iphone.c b/src/core/lib/support/cpu_iphone.c
similarity index 98%
rename from src/core/support/cpu_iphone.c
rename to src/core/lib/support/cpu_iphone.c
index 82b49b4..e83191b 100644
--- a/src/core/support/cpu_iphone.c
+++ b/src/core/lib/support/cpu_iphone.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/src/core/support/cpu_linux.c b/src/core/lib/support/cpu_linux.c
similarity index 98%
rename from src/core/support/cpu_linux.c
rename to src/core/lib/support/cpu_linux.c
index 7af6a8f..5597df2 100644
--- a/src/core/support/cpu_linux.c
+++ b/src/core/lib/support/cpu_linux.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -39,10 +39,10 @@
 
 #ifdef GPR_CPU_LINUX
 
-#include <sched.h>
 #include <errno.h>
-#include <unistd.h>
+#include <sched.h>
 #include <string.h>
+#include <unistd.h>
 
 #include <grpc/support/cpu.h>
 #include <grpc/support/log.h>
diff --git a/src/core/support/cpu_posix.c b/src/core/lib/support/cpu_posix.c
similarity index 99%
rename from src/core/support/cpu_posix.c
rename to src/core/lib/support/cpu_posix.c
index 8f01c28..e508ddd 100644
--- a/src/core/support/cpu_posix.c
+++ b/src/core/lib/support/cpu_posix.c
@@ -36,8 +36,8 @@
 #ifdef GPR_CPU_POSIX
 
 #include <errno.h>
-#include <unistd.h>
 #include <string.h>
+#include <unistd.h>
 
 #include <grpc/support/log.h>
 #include <grpc/support/sync.h>
diff --git a/src/core/support/cpu_windows.c b/src/core/lib/support/cpu_windows.c
similarity index 97%
rename from src/core/support/cpu_windows.c
rename to src/core/lib/support/cpu_windows.c
index ce32eb0..0f84a9e 100644
--- a/src/core/support/cpu_windows.c
+++ b/src/core/lib/support/cpu_windows.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/src/core/support/env.h b/src/core/lib/support/env.h
similarity index 94%
rename from src/core/support/env.h
rename to src/core/lib/support/env.h
index 2902456..ddc4ee3 100644
--- a/src/core/support/env.h
+++ b/src/core/lib/support/env.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_SUPPORT_ENV_H
-#define GRPC_CORE_SUPPORT_ENV_H
+#ifndef GRPC_CORE_LIB_SUPPORT_ENV_H
+#define GRPC_CORE_LIB_SUPPORT_ENV_H
 
 #include <stdio.h>
 
@@ -57,4 +57,4 @@
 }
 #endif
 
-#endif /* GRPC_CORE_SUPPORT_ENV_H */
+#endif /* GRPC_CORE_LIB_SUPPORT_ENV_H */
diff --git a/src/core/support/env_linux.c b/src/core/lib/support/env_linux.c
similarity index 97%
rename from src/core/support/env_linux.c
rename to src/core/lib/support/env_linux.c
index fe51f84..a86133e 100644
--- a/src/core/support/env_linux.c
+++ b/src/core/lib/support/env_linux.c
@@ -40,7 +40,7 @@
 
 #ifdef GPR_LINUX_ENV
 
-#include "src/core/support/env.h"
+#include "src/core/lib/support/env.h"
 
 #include <dlfcn.h>
 #include <features.h>
@@ -51,7 +51,7 @@
 #include <grpc/support/string_util.h>
 #include <grpc/support/useful.h>
 
-#include "src/core/support/string.h"
+#include "src/core/lib/support/string.h"
 
 char *gpr_getenv(const char *name) {
 #if defined(GPR_BACKWARDS_COMPATIBILITY_MODE)
diff --git a/src/core/support/env_posix.c b/src/core/lib/support/env_posix.c
similarity index 94%
rename from src/core/support/env_posix.c
rename to src/core/lib/support/env_posix.c
index 1dd2af5..1b57b09 100644
--- a/src/core/support/env_posix.c
+++ b/src/core/lib/support/env_posix.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,14 +35,14 @@
 
 #ifdef GPR_POSIX_ENV
 
-#include "src/core/support/env.h"
+#include "src/core/lib/support/env.h"
 
 #include <stdlib.h>
 
 #include <grpc/support/log.h>
 
-#include "src/core/support/string.h"
 #include <grpc/support/string_util.h>
+#include "src/core/lib/support/string.h"
 
 char *gpr_getenv(const char *name) {
   char *result = getenv(name);
diff --git a/src/core/support/env_win32.c b/src/core/lib/support/env_win32.c
similarity index 96%
rename from src/core/support/env_win32.c
rename to src/core/lib/support/env_win32.c
index 1025828..566feee 100644
--- a/src/core/support/env_win32.c
+++ b/src/core/lib/support/env_win32.c
@@ -35,8 +35,8 @@
 
 #ifdef GPR_WIN32
 
-#include "src/core/support/env.h"
-#include "src/core/support/string.h"
+#include "src/core/lib/support/env.h"
+#include "src/core/lib/support/string.h"
 
 #ifdef __MINGW32__
 errno_t getenv_s(size_t *size_needed, char *buffer, size_t size,
diff --git a/src/core/support/histogram.c b/src/core/lib/support/histogram.c
similarity index 99%
rename from src/core/support/histogram.c
rename to src/core/lib/support/histogram.c
index 20ed2b1..62227be 100644
--- a/src/core/support/histogram.c
+++ b/src/core/lib/support/histogram.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -38,8 +38,8 @@
 #include <string.h>
 
 #include <grpc/support/alloc.h>
-#include <grpc/support/port_platform.h>
 #include <grpc/support/log.h>
+#include <grpc/support/port_platform.h>
 #include <grpc/support/useful.h>
 
 /* Histograms are stored with exponentially increasing bucket sizes.
diff --git a/src/core/support/host_port.c b/src/core/lib/support/host_port.c
similarity index 97%
rename from src/core/support/host_port.c
rename to src/core/lib/support/host_port.c
index 23f65b1..e03f624 100644
--- a/src/core/support/host_port.c
+++ b/src/core/lib/support/host_port.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,10 +35,10 @@
 
 #include <string.h>
 
-#include "src/core/support/string.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
+#include "src/core/lib/support/string.h"
 
 int gpr_join_host_port(char **out, const char *host, int port) {
   if (host[0] != '[' && strchr(host, ':') != NULL) {
diff --git a/src/core/support/load_file.c b/src/core/lib/support/load_file.c
similarity index 95%
rename from src/core/support/load_file.c
rename to src/core/lib/support/load_file.c
index 650bd62..0cecd5e 100644
--- a/src/core/support/load_file.c
+++ b/src/core/lib/support/load_file.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/support/load_file.h"
+#include "src/core/lib/support/load_file.h"
 
 #include <errno.h>
 #include <string.h>
@@ -40,8 +40,8 @@
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/support/block_annotate.h"
-#include "src/core/support/string.h"
+#include "src/core/lib/support/block_annotate.h"
+#include "src/core/lib/support/string.h"
 
 gpr_slice gpr_load_file(const char *filename, int add_null_terminator,
                         int *success) {
diff --git a/src/core/support/load_file.h b/src/core/lib/support/load_file.h
similarity index 93%
rename from src/core/support/load_file.h
rename to src/core/lib/support/load_file.h
index 5896654..fe030c9 100644
--- a/src/core/support/load_file.h
+++ b/src/core/lib/support/load_file.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_SUPPORT_LOAD_FILE_H
-#define GRPC_CORE_SUPPORT_LOAD_FILE_H
+#ifndef GRPC_CORE_LIB_SUPPORT_LOAD_FILE_H
+#define GRPC_CORE_LIB_SUPPORT_LOAD_FILE_H
 
 #include <stdio.h>
 
@@ -52,4 +52,4 @@
 }
 #endif
 
-#endif /* GRPC_CORE_SUPPORT_LOAD_FILE_H */
+#endif /* GRPC_CORE_LIB_SUPPORT_LOAD_FILE_H */
diff --git a/src/core/support/log.c b/src/core/lib/support/log.c
similarity index 98%
rename from src/core/support/log.c
rename to src/core/lib/support/log.c
index 04156a5..cd6a072 100644
--- a/src/core/support/log.c
+++ b/src/core/lib/support/log.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/src/core/support/log_android.c b/src/core/lib/support/log_android.c
similarity index 98%
rename from src/core/support/log_android.c
rename to src/core/lib/support/log_android.c
index 5d0c7d8..640c9d7 100644
--- a/src/core/support/log_android.c
+++ b/src/core/lib/support/log_android.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,12 +35,12 @@
 
 #ifdef GPR_ANDROID
 
+#include <android/log.h>
 #include <grpc/support/log.h>
 #include <grpc/support/time.h>
-#include <stdio.h>
 #include <stdarg.h>
+#include <stdio.h>
 #include <string.h>
-#include <android/log.h>
 
 static android_LogPriority severity_to_log_priority(gpr_log_severity severity) {
   switch (severity) {
diff --git a/src/core/support/log_linux.c b/src/core/lib/support/log_linux.c
similarity index 98%
rename from src/core/support/log_linux.c
rename to src/core/lib/support/log_linux.c
index d66b7a3..e60512c 100644
--- a/src/core/support/log_linux.c
+++ b/src/core/lib/support/log_linux.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -47,12 +47,12 @@
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 #include <grpc/support/time.h>
-#include <stdio.h>
-#include <stdarg.h>
-#include <string.h>
-#include <time.h>
 #include <linux/unistd.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <string.h>
 #include <sys/syscall.h>
+#include <time.h>
 #include <unistd.h>
 
 static long gettid(void) { return syscall(__NR_gettid); }
diff --git a/src/core/support/log_posix.c b/src/core/lib/support/log_posix.c
similarity index 98%
rename from src/core/support/log_posix.c
rename to src/core/lib/support/log_posix.c
index 3ff171f..7429dd0 100644
--- a/src/core/support/log_posix.c
+++ b/src/core/lib/support/log_posix.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -38,12 +38,12 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/time.h>
-#include <stdio.h>
-#include <stdarg.h>
-#include <string.h>
-#include <stdio.h>
-#include <time.h>
 #include <pthread.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
 
 static intptr_t gettid(void) { return (intptr_t)pthread_self(); }
 
diff --git a/src/core/support/log_win32.c b/src/core/lib/support/log_win32.c
similarity index 97%
rename from src/core/support/log_win32.c
rename to src/core/lib/support/log_win32.c
index e18e667..cec9944 100644
--- a/src/core/support/log_win32.c
+++ b/src/core/lib/support/log_win32.c
@@ -35,17 +35,17 @@
 
 #ifdef GPR_WIN32
 
-#include <stdio.h>
 #include <stdarg.h>
+#include <stdio.h>
 
 #include <grpc/support/alloc.h>
-#include <grpc/support/log_win32.h>
 #include <grpc/support/log.h>
-#include <grpc/support/time.h>
+#include <grpc/support/log_win32.h>
 #include <grpc/support/string_util.h>
+#include <grpc/support/time.h>
 
-#include "src/core/support/string.h"
-#include "src/core/support/string_win32.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/support/string_win32.h"
 
 void gpr_log(const char *file, int line, gpr_log_severity severity,
              const char *format, ...) {
diff --git a/src/core/support/murmur_hash.c b/src/core/lib/support/murmur_hash.c
similarity index 96%
rename from src/core/support/murmur_hash.c
rename to src/core/lib/support/murmur_hash.c
index a5261c0..97832f1 100644
--- a/src/core/support/murmur_hash.c
+++ b/src/core/lib/support/murmur_hash.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/support/murmur_hash.h"
+#include "src/core/lib/support/murmur_hash.h"
 
 #define ROTL32(x, r) ((x) << (r)) | ((x) >> (32 - (r)))
 
diff --git a/src/core/support/murmur_hash.h b/src/core/lib/support/murmur_hash.h
similarity index 92%
rename from src/core/support/murmur_hash.h
rename to src/core/lib/support/murmur_hash.h
index 0f0b399..e54cdf2 100644
--- a/src/core/support/murmur_hash.h
+++ b/src/core/lib/support/murmur_hash.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_SUPPORT_MURMUR_HASH_H
-#define GRPC_CORE_SUPPORT_MURMUR_HASH_H
+#ifndef GRPC_CORE_LIB_SUPPORT_MURMUR_HASH_H
+#define GRPC_CORE_LIB_SUPPORT_MURMUR_HASH_H
 
 #include <grpc/support/port_platform.h>
 
@@ -41,4 +41,4 @@
 /* compute the hash of key (length len) */
 uint32_t gpr_murmur_hash3(const void *key, size_t len, uint32_t seed);
 
-#endif /* GRPC_CORE_SUPPORT_MURMUR_HASH_H */
+#endif /* GRPC_CORE_LIB_SUPPORT_MURMUR_HASH_H */
diff --git a/src/core/support/slice.c b/src/core/lib/support/slice.c
similarity index 99%
rename from src/core/support/slice.c
rename to src/core/lib/support/slice.c
index b9a7c77..cf3953c 100644
--- a/src/core/support/slice.c
+++ b/src/core/lib/support/slice.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/src/core/support/slice_buffer.c b/src/core/lib/support/slice_buffer.c
similarity index 99%
rename from src/core/support/slice_buffer.c
rename to src/core/lib/support/slice_buffer.c
index 66f111d..563e659 100644
--- a/src/core/support/slice_buffer.c
+++ b/src/core/lib/support/slice_buffer.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/src/core/support/stack_lockfree.c b/src/core/lib/support/stack_lockfree.c
similarity index 95%
rename from src/core/support/stack_lockfree.c
rename to src/core/lib/support/stack_lockfree.c
index 9daecd2..de80486 100644
--- a/src/core/support/stack_lockfree.c
+++ b/src/core/lib/support/stack_lockfree.c
@@ -31,15 +31,15 @@
  *
  */
 
-#include "src/core/support/stack_lockfree.h"
+#include "src/core/lib/support/stack_lockfree.h"
 
 #include <stdlib.h>
 #include <string.h>
 
-#include <grpc/support/port_platform.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/atm.h>
 #include <grpc/support/log.h>
+#include <grpc/support/port_platform.h>
 
 /* The lockfree node structure is a single architecture-level
    word that allows for an atomic CAS to set it up. */
@@ -64,10 +64,10 @@
   struct lockfree_node_contents contents;
 } lockfree_node;
 
-#define ENTRY_ALIGNMENT_BITS 3 /* make sure that entries aligned to 8-bytes */
-#define INVALID_ENTRY_INDEX                        \
-  ((1 << 16) - 1) /* reserve this entry as invalid \
-                    */
+/* make sure that entries aligned to 8-bytes */
+#define ENTRY_ALIGNMENT_BITS 3
+/* reserve this entry as invalid */
+#define INVALID_ENTRY_INDEX ((1 << 16) - 1)
 
 struct gpr_stack_lockfree {
   lockfree_node *entries;
diff --git a/src/core/support/stack_lockfree.h b/src/core/lib/support/stack_lockfree.h
similarity index 93%
rename from src/core/support/stack_lockfree.h
rename to src/core/lib/support/stack_lockfree.h
index d6fd06d..a030a01 100644
--- a/src/core/support/stack_lockfree.h
+++ b/src/core/lib/support/stack_lockfree.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_SUPPORT_STACK_LOCKFREE_H
-#define GRPC_CORE_SUPPORT_STACK_LOCKFREE_H
+#ifndef GRPC_CORE_LIB_SUPPORT_STACK_LOCKFREE_H
+#define GRPC_CORE_LIB_SUPPORT_STACK_LOCKFREE_H
 
 #include <stddef.h>
 
@@ -50,4 +50,4 @@
 /* Returns -1 on empty or the actual entry number */
 int gpr_stack_lockfree_pop(gpr_stack_lockfree *stack);
 
-#endif /* GRPC_CORE_SUPPORT_STACK_LOCKFREE_H */
+#endif /* GRPC_CORE_LIB_SUPPORT_STACK_LOCKFREE_H */
diff --git a/src/core/support/string.c b/src/core/lib/support/string.c
similarity index 98%
rename from src/core/support/string.c
rename to src/core/lib/support/string.c
index 1f541de..365d861 100644
--- a/src/core/support/string.c
+++ b/src/core/lib/support/string.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/support/string.h"
+#include "src/core/lib/support/string.h"
 
 #include <ctype.h>
 #include <stddef.h>
diff --git a/src/core/support/string.h b/src/core/lib/support/string.h
similarity index 97%
rename from src/core/support/string.h
rename to src/core/lib/support/string.h
index a367ed7..68c0287 100644
--- a/src/core/support/string.h
+++ b/src/core/lib/support/string.h
@@ -31,14 +31,14 @@
  *
  */
 
-#ifndef GRPC_CORE_SUPPORT_STRING_H
-#define GRPC_CORE_SUPPORT_STRING_H
+#ifndef GRPC_CORE_LIB_SUPPORT_STRING_H
+#define GRPC_CORE_LIB_SUPPORT_STRING_H
 
 #include <stddef.h>
 
 #include <grpc/support/port_platform.h>
-#include <grpc/support/slice_buffer.h>
 #include <grpc/support/slice.h>
+#include <grpc/support/slice_buffer.h>
 
 #ifdef __cplusplus
 extern "C" {
@@ -118,4 +118,4 @@
 }
 #endif
 
-#endif /* GRPC_CORE_SUPPORT_STRING_H */
+#endif /* GRPC_CORE_LIB_SUPPORT_STRING_H */
diff --git a/src/core/support/string_posix.c b/src/core/lib/support/string_posix.c
similarity index 98%
rename from src/core/support/string_posix.c
rename to src/core/lib/support/string_posix.c
index 25c333d..a73b310 100644
--- a/src/core/support/string_posix.c
+++ b/src/core/lib/support/string_posix.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,8 +35,8 @@
 
 #ifdef GPR_POSIX_STRING
 
-#include <stdio.h>
 #include <stdarg.h>
+#include <stdio.h>
 #include <string.h>
 
 #include <grpc/support/alloc.h>
diff --git a/src/core/support/string_win32.c b/src/core/lib/support/string_win32.c
similarity index 98%
rename from src/core/support/string_win32.c
rename to src/core/lib/support/string_win32.c
index 3b1f702..16b7e37 100644
--- a/src/core/support/string_win32.c
+++ b/src/core/lib/support/string_win32.c
@@ -37,13 +37,13 @@
 
 #ifdef GPR_WIN32
 
-#include <stdio.h>
 #include <stdarg.h>
+#include <stdio.h>
 #include <string.h>
 
 #include <grpc/support/alloc.h>
 
-#include "src/core/support/string.h"
+#include "src/core/lib/support/string.h"
 
 int gpr_asprintf(char **strp, const char *format, ...) {
   va_list args;
diff --git a/src/core/support/string_win32.h b/src/core/lib/support/string_win32.h
similarity index 92%
rename from src/core/support/string_win32.h
rename to src/core/lib/support/string_win32.h
index c9ae8d9..f47d567 100644
--- a/src/core/support/string_win32.h
+++ b/src/core/lib/support/string_win32.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_SUPPORT_STRING_WIN32_H
-#define GRPC_CORE_SUPPORT_STRING_WIN32_H
+#ifndef GRPC_CORE_LIB_SUPPORT_STRING_WIN32_H
+#define GRPC_CORE_LIB_SUPPORT_STRING_WIN32_H
 
 #include <grpc/support/port_platform.h>
 
@@ -44,4 +44,4 @@
 
 #endif /* GPR_WIN32 */
 
-#endif /* GRPC_CORE_SUPPORT_STRING_WIN32_H */
+#endif /* GRPC_CORE_LIB_SUPPORT_STRING_WIN32_H */
diff --git a/src/core/support/subprocess_posix.c b/src/core/lib/support/subprocess_posix.c
similarity index 98%
rename from src/core/support/subprocess_posix.c
rename to src/core/lib/support/subprocess_posix.c
index 171054e..662e7dd 100644
--- a/src/core/support/subprocess_posix.c
+++ b/src/core/lib/support/subprocess_posix.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -37,15 +37,15 @@
 
 #include <grpc/support/subprocess.h>
 
-#include <unistd.h>
 #include <assert.h>
 #include <errno.h>
-#include <stdio.h>
-#include <string.h>
 #include <signal.h>
+#include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <sys/types.h>
 #include <sys/wait.h>
+#include <unistd.h>
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
diff --git a/src/core/support/subprocess_windows.c b/src/core/lib/support/subprocess_windows.c
similarity index 97%
rename from src/core/support/subprocess_windows.c
rename to src/core/lib/support/subprocess_windows.c
index 2b25ef0..264306f 100644
--- a/src/core/support/subprocess_windows.c
+++ b/src/core/lib/support/subprocess_windows.c
@@ -35,15 +35,15 @@
 
 #ifdef GPR_WINDOWS_SUBPROCESS
 
-#include <windows.h>
 #include <string.h>
 #include <tchar.h>
+#include <windows.h>
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/subprocess.h>
-#include "src/core/support/string.h"
-#include "src/core/support/string_win32.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/support/string_win32.h"
 
 struct gpr_subprocess {
   PROCESS_INFORMATION pi;
diff --git a/src/core/support/sync.c b/src/core/lib/support/sync.c
similarity index 99%
rename from src/core/support/sync.c
rename to src/core/lib/support/sync.c
index 69e3e39..800cf20 100644
--- a/src/core/support/sync.c
+++ b/src/core/lib/support/sync.c
@@ -33,9 +33,9 @@
 
 /* Generic implementation of synchronization primitives. */
 
+#include <grpc/support/atm.h>
 #include <grpc/support/log.h>
 #include <grpc/support/sync.h>
-#include <grpc/support/atm.h>
 
 /* Number of mutexes to allocate for events, to avoid lock contention.
    Should be a prime. */
diff --git a/src/core/support/sync_posix.c b/src/core/lib/support/sync_posix.c
similarity index 98%
rename from src/core/support/sync_posix.c
rename to src/core/lib/support/sync_posix.c
index d3c483f..a5e59db 100644
--- a/src/core/support/sync_posix.c
+++ b/src/core/lib/support/sync_posix.c
@@ -36,11 +36,11 @@
 #ifdef GPR_POSIX_SYNC
 
 #include <errno.h>
-#include <time.h>
 #include <grpc/support/log.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/time.h>
-#include "src/core/profiling/timers.h"
+#include <time.h>
+#include "src/core/lib/profiling/timers.h"
 
 void gpr_mu_init(gpr_mu* mu) { GPR_ASSERT(pthread_mutex_init(mu, NULL) == 0); }
 
diff --git a/src/core/support/sync_win32.c b/src/core/lib/support/sync_win32.c
similarity index 100%
rename from src/core/support/sync_win32.c
rename to src/core/lib/support/sync_win32.c
diff --git a/src/core/support/thd.c b/src/core/lib/support/thd.c
similarity index 98%
rename from src/core/support/thd.c
rename to src/core/lib/support/thd.c
index 41daeb5..d59aace 100644
--- a/src/core/support/thd.c
+++ b/src/core/lib/support/thd.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/src/core/support/thd_internal.h b/src/core/lib/support/thd_internal.h
similarity index 91%
rename from src/core/support/thd_internal.h
rename to src/core/lib/support/thd_internal.h
index 33b904e..f269a32 100644
--- a/src/core/support/thd_internal.h
+++ b/src/core/lib/support/thd_internal.h
@@ -31,9 +31,9 @@
  *
  */
 
-#ifndef GRPC_CORE_SUPPORT_THD_INTERNAL_H
-#define GRPC_CORE_SUPPORT_THD_INTERNAL_H
+#ifndef GRPC_CORE_LIB_SUPPORT_THD_INTERNAL_H
+#define GRPC_CORE_LIB_SUPPORT_THD_INTERNAL_H
 
 /* Internal interfaces between modules within the gpr support library.  */
 
-#endif /* GRPC_CORE_SUPPORT_THD_INTERNAL_H */
+#endif /* GRPC_CORE_LIB_SUPPORT_THD_INTERNAL_H */
diff --git a/src/core/support/thd_posix.c b/src/core/lib/support/thd_posix.c
similarity index 98%
rename from src/core/support/thd_posix.c
rename to src/core/lib/support/thd_posix.c
index 653a1c8..4d874d3 100644
--- a/src/core/support/thd_posix.c
+++ b/src/core/lib/support/thd_posix.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -37,13 +37,13 @@
 
 #ifdef GPR_POSIX_SYNC
 
-#include <pthread.h>
-#include <stdlib.h>
-#include <string.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
+#include <pthread.h>
+#include <stdlib.h>
+#include <string.h>
 
 struct thd_arg {
   void (*body)(void *arg); /* body of a thread */
diff --git a/src/core/support/thd_win32.c b/src/core/lib/support/thd_win32.c
similarity index 98%
rename from src/core/support/thd_win32.c
rename to src/core/lib/support/thd_win32.c
index a9db180..630eb7f 100644
--- a/src/core/support/thd_win32.c
+++ b/src/core/lib/support/thd_win32.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -37,10 +37,10 @@
 
 #ifdef GPR_WIN32
 
-#include <string.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/thd.h>
+#include <string.h>
 
 #if defined(_MSC_VER)
 #define thread_local __declspec(thread)
diff --git a/src/core/support/time.c b/src/core/lib/support/time.c
similarity index 99%
rename from src/core/support/time.c
rename to src/core/lib/support/time.c
index 423d12f..0e2c8fc 100644
--- a/src/core/support/time.c
+++ b/src/core/lib/support/time.c
@@ -33,11 +33,11 @@
 
 /* Generic implementation of time calls. */
 
+#include <grpc/support/log.h>
 #include <grpc/support/time.h>
 #include <limits.h>
 #include <stdio.h>
 #include <string.h>
-#include <grpc/support/log.h>
 
 int gpr_time_cmp(gpr_timespec a, gpr_timespec b) {
   int cmp = (a.tv_sec > b.tv_sec) - (a.tv_sec < b.tv_sec);
diff --git a/src/core/support/time_posix.c b/src/core/lib/support/time_posix.c
similarity index 97%
rename from src/core/support/time_posix.c
rename to src/core/lib/support/time_posix.c
index 36d75e7..fcfab2f 100644
--- a/src/core/support/time_posix.c
+++ b/src/core/lib/support/time_posix.c
@@ -32,7 +32,7 @@
  */
 
 #include <grpc/support/port_platform.h>
-#include <src/core/support/time_precise.h>
+#include "src/core/lib/support/time_precise.h"
 
 #ifdef GPR_POSIX_TIME
 
@@ -44,7 +44,7 @@
 #endif
 #include <grpc/support/log.h>
 #include <grpc/support/time.h>
-#include "src/core/support/block_annotate.h"
+#include "src/core/lib/support/block_annotate.h"
 
 static struct timespec timespec_from_gpr(gpr_timespec gts) {
   struct timespec rv;
@@ -98,9 +98,9 @@
 #else
 /* For some reason Apple's OSes haven't implemented clock_gettime. */
 
-#include <sys/time.h>
 #include <mach/mach.h>
 #include <mach/mach_time.h>
+#include <sys/time.h>
 
 static double g_time_scale;
 static uint64_t g_time_start;
diff --git a/src/core/support/time_precise.c b/src/core/lib/support/time_precise.c
similarity index 98%
rename from src/core/support/time_precise.c
rename to src/core/lib/support/time_precise.c
index a2cf74b..31ac47e 100644
--- a/src/core/support/time_precise.c
+++ b/src/core/lib/support/time_precise.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/src/core/support/time_precise.h b/src/core/lib/support/time_precise.h
similarity index 92%
rename from src/core/support/time_precise.h
rename to src/core/lib/support/time_precise.h
index 871c99a..e1faee1 100644
--- a/src/core/support/time_precise.h
+++ b/src/core/lib/support/time_precise.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_SUPPORT_TIME_PRECISE_H
-#define GRPC_CORE_SUPPORT_TIME_PRECISE_H
+#ifndef GRPC_CORE_LIB_SUPPORT_TIME_PRECISE_H
+#define GRPC_CORE_LIB_SUPPORT_TIME_PRECISE_H
 
 #include <grpc/support/time.h>
 
 void gpr_precise_clock_init(void);
 void gpr_precise_clock_now(gpr_timespec *clk);
 
-#endif /* GRPC_CORE_SUPPORT_TIME_PRECISE_H */
+#endif /* GRPC_CORE_LIB_SUPPORT_TIME_PRECISE_H */
diff --git a/src/core/support/time_win32.c b/src/core/lib/support/time_win32.c
similarity index 97%
rename from src/core/support/time_win32.c
rename to src/core/lib/support/time_win32.c
index 8af957e..a6ac003 100644
--- a/src/core/support/time_win32.c
+++ b/src/core/lib/support/time_win32.c
@@ -39,12 +39,12 @@
 
 #include <grpc/support/log.h>
 #include <grpc/support/time.h>
-#include <src/core/support/time_precise.h>
-#include <sys/timeb.h>
-#include <process.h>
 #include <limits.h>
+#include <process.h>
+#include <sys/timeb.h>
 
-#include "src/core/support/block_annotate.h"
+#include "src/core/lib/support/block_annotate.h"
+#include "src/core/lib/support/time_precise.h"
 
 static LARGE_INTEGER g_start_time;
 static double g_time_scale;
diff --git a/src/core/support/tls_pthread.c b/src/core/lib/support/tls_pthread.c
similarity index 97%
rename from src/core/support/tls_pthread.c
rename to src/core/lib/support/tls_pthread.c
index 9683a6e..bdc7ed1 100644
--- a/src/core/support/tls_pthread.c
+++ b/src/core/lib/support/tls_pthread.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/src/core/support/tmpfile.h b/src/core/lib/support/tmpfile.h
similarity index 93%
rename from src/core/support/tmpfile.h
rename to src/core/lib/support/tmpfile.h
index df6f869..4fec207 100644
--- a/src/core/support/tmpfile.h
+++ b/src/core/lib/support/tmpfile.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_SUPPORT_TMPFILE_H
-#define GRPC_CORE_SUPPORT_TMPFILE_H
+#ifndef GRPC_CORE_LIB_SUPPORT_TMPFILE_H
+#define GRPC_CORE_LIB_SUPPORT_TMPFILE_H
 
 #include <stdio.h>
 
@@ -52,4 +52,4 @@
 }
 #endif
 
-#endif /* GRPC_CORE_SUPPORT_TMPFILE_H */
+#endif /* GRPC_CORE_LIB_SUPPORT_TMPFILE_H */
diff --git a/src/core/support/tmpfile_posix.c b/src/core/lib/support/tmpfile_posix.c
similarity index 96%
rename from src/core/support/tmpfile_posix.c
rename to src/core/lib/support/tmpfile_posix.c
index b16eeac..743f45e 100644
--- a/src/core/support/tmpfile_posix.c
+++ b/src/core/lib/support/tmpfile_posix.c
@@ -35,7 +35,7 @@
 
 #ifdef GPR_POSIX_FILE
 
-#include "src/core/support/tmpfile.h"
+#include "src/core/lib/support/tmpfile.h"
 
 #include <errno.h>
 #include <stdlib.h>
@@ -46,7 +46,7 @@
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/support/string.h"
+#include "src/core/lib/support/string.h"
 
 FILE *gpr_tmpfile(const char *prefix, char **tmp_filename) {
   FILE *result = NULL;
diff --git a/src/core/support/tmpfile_win32.c b/src/core/lib/support/tmpfile_win32.c
similarity index 96%
rename from src/core/support/tmpfile_win32.c
rename to src/core/lib/support/tmpfile_win32.c
index 3000f00..05d92b6 100644
--- a/src/core/support/tmpfile_win32.c
+++ b/src/core/lib/support/tmpfile_win32.c
@@ -44,8 +44,8 @@
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/support/string_win32.h"
-#include "src/core/support/tmpfile.h"
+#include "src/core/lib/support/string_win32.h"
+#include "src/core/lib/support/tmpfile.h"
 
 FILE *gpr_tmpfile(const char *prefix, char **tmp_filename_out) {
   FILE *result = NULL;
diff --git a/src/core/support/wrap_memcpy.c b/src/core/lib/support/wrap_memcpy.c
similarity index 100%
rename from src/core/support/wrap_memcpy.c
rename to src/core/lib/support/wrap_memcpy.c
diff --git a/src/core/surface/alarm.c b/src/core/lib/surface/alarm.c
similarity index 96%
rename from src/core/surface/alarm.c
rename to src/core/lib/surface/alarm.c
index 8169ede..3686833 100644
--- a/src/core/surface/alarm.c
+++ b/src/core/lib/surface/alarm.c
@@ -31,10 +31,10 @@
  *
  */
 
-#include "src/core/iomgr/timer.h"
-#include "src/core/surface/completion_queue.h"
 #include <grpc/grpc.h>
 #include <grpc/support/alloc.h>
+#include "src/core/lib/iomgr/timer.h"
+#include "src/core/lib/surface/completion_queue.h"
 
 struct grpc_alarm {
   grpc_timer alarm;
diff --git a/src/core/surface/api_trace.c b/src/core/lib/surface/api_trace.c
similarity index 94%
rename from src/core/surface/api_trace.c
rename to src/core/lib/surface/api_trace.c
index 9f0b900..3702c02 100644
--- a/src/core/surface/api_trace.c
+++ b/src/core/lib/surface/api_trace.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,6 +31,6 @@
  *
  */
 
-#include "src/core/surface/api_trace.h"
+#include "src/core/lib/surface/api_trace.h"
 
 int grpc_api_trace = 0;
diff --git a/src/core/surface/api_trace.h b/src/core/lib/surface/api_trace.h
similarity index 93%
rename from src/core/surface/api_trace.h
rename to src/core/lib/surface/api_trace.h
index 29a9b2d..b50011c 100644
--- a/src/core/surface/api_trace.h
+++ b/src/core/lib/surface/api_trace.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_SURFACE_API_TRACE_H
-#define GRPC_CORE_SURFACE_API_TRACE_H
+#ifndef GRPC_CORE_LIB_SURFACE_API_TRACE_H
+#define GRPC_CORE_LIB_SURFACE_API_TRACE_H
 
-#include "src/core/debug/trace.h"
 #include <grpc/support/log.h>
+#include "src/core/lib/debug/trace.h"
 
 extern int grpc_api_trace;
 
@@ -62,4 +62,4 @@
     gpr_log(GPR_INFO, fmt GRPC_API_TRACE_UNWRAP##nargs args); \
   }
 
-#endif /* GRPC_CORE_SURFACE_API_TRACE_H */
+#endif /* GRPC_CORE_LIB_SURFACE_API_TRACE_H */
diff --git a/src/core/surface/byte_buffer.c b/src/core/lib/surface/byte_buffer.c
similarity index 98%
rename from src/core/surface/byte_buffer.c
rename to src/core/lib/surface/byte_buffer.c
index fb39c45..03071ef 100644
--- a/src/core/surface/byte_buffer.c
+++ b/src/core/lib/surface/byte_buffer.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
diff --git a/src/core/surface/byte_buffer_reader.c b/src/core/lib/surface/byte_buffer_reader.c
similarity index 97%
rename from src/core/surface/byte_buffer_reader.c
rename to src/core/lib/surface/byte_buffer_reader.c
index 4679854..7248f5f 100644
--- a/src/core/surface/byte_buffer_reader.c
+++ b/src/core/lib/surface/byte_buffer_reader.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,17 +31,17 @@
  *
  */
 
-#include <string.h>
 #include <grpc/byte_buffer_reader.h>
+#include <string.h>
 
+#include <grpc/byte_buffer.h>
 #include <grpc/compression.h>
 #include <grpc/grpc.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/slice_buffer.h>
-#include <grpc/byte_buffer.h>
 
-#include "src/core/compression/message_compress.h"
+#include "src/core/lib/compression/message_compress.h"
 
 static int is_compressed(grpc_byte_buffer *buffer) {
   switch (buffer->type) {
diff --git a/src/core/surface/call.c b/src/core/lib/surface/call.c
similarity index 98%
rename from src/core/surface/call.c
rename to src/core/lib/surface/call.c
index 6f1cd1d..d63a4a7 100644
--- a/src/core/surface/call.c
+++ b/src/core/lib/surface/call.c
@@ -43,16 +43,16 @@
 #include <grpc/support/string_util.h>
 #include <grpc/support/useful.h>
 
-#include "src/core/channel/channel_stack.h"
-#include "src/core/compression/algorithm_metadata.h"
-#include "src/core/iomgr/timer.h"
-#include "src/core/profiling/timers.h"
-#include "src/core/support/string.h"
-#include "src/core/surface/api_trace.h"
-#include "src/core/surface/call.h"
-#include "src/core/surface/channel.h"
-#include "src/core/surface/completion_queue.h"
-#include "src/core/transport/static_metadata.h"
+#include "src/core/lib/channel/channel_stack.h"
+#include "src/core/lib/compression/algorithm_metadata.h"
+#include "src/core/lib/iomgr/timer.h"
+#include "src/core/lib/profiling/timers.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/surface/api_trace.h"
+#include "src/core/lib/surface/call.h"
+#include "src/core/lib/surface/channel.h"
+#include "src/core/lib/surface/completion_queue.h"
+#include "src/core/lib/transport/static_metadata.h"
 
 /** The maximum number of concurrent batches possible.
     Based upon the maximum number of individually queueable ops in the batch
diff --git a/src/core/surface/call.h b/src/core/lib/surface/call.h
similarity index 93%
rename from src/core/surface/call.h
rename to src/core/lib/surface/call.h
index d2edf03..e2e7586 100644
--- a/src/core/surface/call.h
+++ b/src/core/lib/surface/call.h
@@ -31,13 +31,13 @@
  *
  */
 
-#ifndef GRPC_CORE_SURFACE_CALL_H
-#define GRPC_CORE_SURFACE_CALL_H
+#ifndef GRPC_CORE_LIB_SURFACE_CALL_H
+#define GRPC_CORE_LIB_SURFACE_CALL_H
 
-#include "src/core/channel/channel_stack.h"
-#include "src/core/channel/context.h"
-#include "src/core/surface/api_trace.h"
-#include "src/core/surface/surface_trace.h"
+#include "src/core/lib/channel/channel_stack.h"
+#include "src/core/lib/channel/context.h"
+#include "src/core/lib/surface/api_trace.h"
+#include "src/core/lib/surface/surface_trace.h"
 
 #include <grpc/grpc.h>
 #include <grpc/impl/codegen/compression_types.h>
@@ -113,4 +113,4 @@
 }
 #endif
 
-#endif /* GRPC_CORE_SURFACE_CALL_H */
+#endif /* GRPC_CORE_LIB_SURFACE_CALL_H */
diff --git a/src/core/surface/call_details.c b/src/core/lib/surface/call_details.c
similarity index 95%
rename from src/core/surface/call_details.c
rename to src/core/lib/surface/call_details.c
index 60f0029..08f606d 100644
--- a/src/core/surface/call_details.c
+++ b/src/core/lib/surface/call_details.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -36,7 +36,7 @@
 
 #include <string.h>
 
-#include "src/core/surface/api_trace.h"
+#include "src/core/lib/surface/api_trace.h"
 
 void grpc_call_details_init(grpc_call_details* cd) {
   GRPC_API_TRACE("grpc_call_details_init(cd=%p)", 1, (cd));
diff --git a/src/core/surface/call_log_batch.c b/src/core/lib/surface/call_log_batch.c
similarity index 97%
rename from src/core/surface/call_log_batch.c
rename to src/core/lib/surface/call_log_batch.c
index 46756f4..bc5a2ff 100644
--- a/src/core/surface/call_log_batch.c
+++ b/src/core/lib/surface/call_log_batch.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,11 +31,11 @@
  *
  */
 
-#include "src/core/surface/call.h"
+#include "src/core/lib/surface/call.h"
 
-#include "src/core/support/string.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/string_util.h>
+#include "src/core/lib/support/string.h"
 
 static void add_metadata(gpr_strvec *b, const grpc_metadata *md, size_t count) {
   size_t i;
diff --git a/src/core/surface/call_test_only.h b/src/core/lib/surface/call_test_only.h
similarity index 93%
rename from src/core/surface/call_test_only.h
rename to src/core/lib/surface/call_test_only.h
index fdc43a3..4002141 100644
--- a/src/core/surface/call_test_only.h
+++ b/src/core/lib/surface/call_test_only.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_SURFACE_CALL_TEST_ONLY_H
-#define GRPC_CORE_SURFACE_CALL_TEST_ONLY_H
+#ifndef GRPC_CORE_LIB_SURFACE_CALL_TEST_ONLY_H
+#define GRPC_CORE_LIB_SURFACE_CALL_TEST_ONLY_H
 
 #include <grpc/grpc.h>
 
@@ -61,4 +61,4 @@
 }
 #endif
 
-#endif /* GRPC_CORE_SURFACE_CALL_TEST_ONLY_H */
+#endif /* GRPC_CORE_LIB_SURFACE_CALL_TEST_ONLY_H */
diff --git a/src/core/surface/channel.c b/src/core/lib/surface/channel.c
similarity index 96%
rename from src/core/surface/channel.c
rename to src/core/lib/surface/channel.c
index 964ab34..d815daa 100644
--- a/src/core/surface/channel.c
+++ b/src/core/lib/surface/channel.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/surface/channel.h"
+#include "src/core/lib/surface/channel.h"
 
 #include <stdlib.h>
 #include <string.h>
@@ -40,14 +40,14 @@
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/surface/channel_init.h"
-#include "src/core/client_config/resolver_registry.h"
-#include "src/core/iomgr/iomgr.h"
-#include "src/core/support/string.h"
-#include "src/core/surface/api_trace.h"
-#include "src/core/surface/call.h"
-#include "src/core/surface/init.h"
-#include "src/core/transport/static_metadata.h"
+#include "src/core/lib/client_config/resolver_registry.h"
+#include "src/core/lib/iomgr/iomgr.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/surface/api_trace.h"
+#include "src/core/lib/surface/call.h"
+#include "src/core/lib/surface/channel_init.h"
+#include "src/core/lib/surface/init.h"
+#include "src/core/lib/transport/static_metadata.h"
 
 /** Cache grpc-status: X mdelems for X = 0..NUM_CACHED_STATUS_ELEMS.
  *  Avoids needing to take a metadata context lock for sending status
diff --git a/src/core/surface/channel.h b/src/core/lib/surface/channel.h
similarity index 91%
rename from src/core/surface/channel.h
rename to src/core/lib/surface/channel.h
index c08988d..09de0fc 100644
--- a/src/core/surface/channel.h
+++ b/src/core/lib/surface/channel.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_SURFACE_CHANNEL_H
-#define GRPC_CORE_SURFACE_CHANNEL_H
+#ifndef GRPC_CORE_LIB_SURFACE_CHANNEL_H
+#define GRPC_CORE_LIB_SURFACE_CHANNEL_H
 
-#include "src/core/channel/channel_stack.h"
-#include "src/core/surface/channel_stack_type.h"
-#include "src/core/client_config/subchannel_factory.h"
+#include "src/core/lib/channel/channel_stack.h"
+#include "src/core/lib/client_config/subchannel_factory.h"
+#include "src/core/lib/surface/channel_stack_type.h"
 
 grpc_channel *grpc_channel_create(grpc_exec_ctx *exec_ctx, const char *target,
                                   const grpc_channel_args *args,
@@ -72,4 +72,4 @@
   grpc_channel_internal_unref(exec_ctx, channel)
 #endif
 
-#endif /* GRPC_CORE_SURFACE_CHANNEL_H */
+#endif /* GRPC_CORE_LIB_SURFACE_CHANNEL_H */
diff --git a/src/core/surface/channel_connectivity.c b/src/core/lib/surface/channel_connectivity.c
similarity index 86%
rename from src/core/surface/channel_connectivity.c
rename to src/core/lib/surface/channel_connectivity.c
index 2dd4fce..2f5d763 100644
--- a/src/core/surface/channel_connectivity.c
+++ b/src/core/lib/surface/channel_connectivity.c
@@ -31,16 +31,15 @@
  *
  */
 
-#include "src/core/surface/channel.h"
+#include "src/core/lib/surface/channel.h"
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 
-#include "src/core/channel/client_channel.h"
-#include "src/core/channel/client_uchannel.h"
-#include "src/core/iomgr/timer.h"
-#include "src/core/surface/api_trace.h"
-#include "src/core/surface/completion_queue.h"
+#include "src/core/lib/channel/client_channel.h"
+#include "src/core/lib/iomgr/timer.h"
+#include "src/core/lib/surface/api_trace.h"
+#include "src/core/lib/surface/completion_queue.h"
 
 grpc_connectivity_state grpc_channel_check_connectivity_state(
     grpc_channel *channel, int try_to_connect) {
@@ -58,12 +57,6 @@
     grpc_exec_ctx_finish(&exec_ctx);
     return state;
   }
-  if (client_channel_elem->filter == &grpc_client_uchannel_filter) {
-    state = grpc_client_uchannel_check_connectivity_state(
-        &exec_ctx, client_channel_elem, try_to_connect);
-    grpc_exec_ctx_finish(&exec_ctx);
-    return state;
-  }
   gpr_log(GPR_ERROR,
           "grpc_channel_check_connectivity_state called on something that is "
           "not a (u)client channel, but '%s'",
@@ -98,9 +91,6 @@
   if (client_channel_elem->filter == &grpc_client_channel_filter) {
     GRPC_CHANNEL_INTERNAL_UNREF(exec_ctx, w->channel,
                                 "watch_channel_connectivity");
-  } else if (client_channel_elem->filter == &grpc_client_uchannel_filter) {
-    GRPC_CHANNEL_INTERNAL_UNREF(exec_ctx, w->channel,
-                                "watch_uchannel_connectivity");
   } else {
     abort();
   }
@@ -209,11 +199,8 @@
     grpc_client_channel_watch_connectivity_state(&exec_ctx, client_channel_elem,
                                                  grpc_cq_pollset(cq), &w->state,
                                                  &w->on_complete);
-  } else if (client_channel_elem->filter == &grpc_client_uchannel_filter) {
-    GRPC_CHANNEL_INTERNAL_REF(channel, "watch_uchannel_connectivity");
-    grpc_client_uchannel_watch_connectivity_state(
-        &exec_ctx, client_channel_elem, grpc_cq_pollset(cq), &w->state,
-        &w->on_complete);
+  } else {
+    abort();
   }
 
   grpc_exec_ctx_finish(&exec_ctx);
diff --git a/src/core/surface/channel_create.c b/src/core/lib/surface/channel_create.c
similarity index 93%
rename from src/core/surface/channel_create.c
rename to src/core/lib/surface/channel_create.c
index 123447c..e8777ce 100644
--- a/src/core/surface/channel_create.c
+++ b/src/core/lib/surface/channel_create.c
@@ -40,16 +40,16 @@
 #include <grpc/support/slice.h>
 #include <grpc/support/slice_buffer.h>
 
-#include "src/core/census/grpc_filter.h"
-#include "src/core/channel/channel_args.h"
-#include "src/core/channel/client_channel.h"
-#include "src/core/channel/compress_filter.h"
-#include "src/core/channel/http_client_filter.h"
-#include "src/core/client_config/resolver_registry.h"
-#include "src/core/iomgr/tcp_client.h"
-#include "src/core/surface/api_trace.h"
-#include "src/core/surface/channel.h"
-#include "src/core/transport/chttp2_transport.h"
+#include "src/core/lib/census/grpc_filter.h"
+#include "src/core/lib/channel/channel_args.h"
+#include "src/core/lib/channel/client_channel.h"
+#include "src/core/lib/channel/compress_filter.h"
+#include "src/core/lib/channel/http_client_filter.h"
+#include "src/core/lib/client_config/resolver_registry.h"
+#include "src/core/lib/iomgr/tcp_client.h"
+#include "src/core/lib/surface/api_trace.h"
+#include "src/core/lib/surface/channel.h"
+#include "src/core/lib/transport/chttp2_transport.h"
 
 typedef struct {
   grpc_connector base;
diff --git a/src/core/surface/channel_init.c b/src/core/lib/surface/channel_init.c
similarity index 97%
rename from src/core/surface/channel_init.c
rename to src/core/lib/surface/channel_init.c
index 538be84..fc69f61 100644
--- a/src/core/surface/channel_init.c
+++ b/src/core/lib/surface/channel_init.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/surface/channel_init.h"
+#include "src/core/lib/surface/channel_init.h"
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/useful.h>
@@ -112,8 +112,6 @@
       return "CLIENT_SUBCHANNEL";
     case GRPC_SERVER_CHANNEL:
       return "SERVER_CHANNEL";
-    case GRPC_CLIENT_UCHANNEL:
-      return "CLIENT_UCHANNEL";
     case GRPC_CLIENT_LAME_CHANNEL:
       return "CLIENT_LAME_CHANNEL";
     case GRPC_CLIENT_DIRECT_CHANNEL:
diff --git a/src/core/surface/channel_init.h b/src/core/lib/surface/channel_init.h
similarity index 92%
rename from src/core/surface/channel_init.h
rename to src/core/lib/surface/channel_init.h
index 06faef6..a4d8271 100644
--- a/src/core/surface/channel_init.h
+++ b/src/core/lib/surface/channel_init.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_SURFACE_CHANNEL_INIT_H
-#define GRPC_CORE_SURFACE_CHANNEL_INIT_H
+#ifndef GRPC_CORE_LIB_SURFACE_CHANNEL_INIT_H
+#define GRPC_CORE_LIB_SURFACE_CHANNEL_INIT_H
 
-#include "src/core/channel/channel_stack_builder.h"
-#include "src/core/surface/channel_stack_type.h"
-#include "src/core/transport/transport.h"
+#include "src/core/lib/channel/channel_stack_builder.h"
+#include "src/core/lib/surface/channel_stack_type.h"
+#include "src/core/lib/transport/transport.h"
 
 /// This module provides a way for plugins (and the grpc core library itself)
 /// to register mutators for channel stacks.
@@ -83,4 +83,4 @@
     const grpc_channel_args *args, int initial_refs, grpc_iomgr_cb_func destroy,
     void *destroy_arg, grpc_transport *optional_transport);
 
-#endif /* GRPC_CORE_SURFACE_CHANNEL_INIT_H */
+#endif /* GRPC_CORE_LIB_SURFACE_CHANNEL_INIT_H */
diff --git a/src/core/surface/channel_ping.c b/src/core/lib/surface/channel_ping.c
similarity index 95%
rename from src/core/surface/channel_ping.c
rename to src/core/lib/surface/channel_ping.c
index 983f1c8..dd862cd 100644
--- a/src/core/surface/channel_ping.c
+++ b/src/core/lib/surface/channel_ping.c
@@ -31,15 +31,15 @@
  *
  */
 
-#include "src/core/surface/channel.h"
+#include "src/core/lib/surface/channel.h"
 
 #include <string.h>
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 
-#include "src/core/surface/api_trace.h"
-#include "src/core/surface/completion_queue.h"
+#include "src/core/lib/surface/api_trace.h"
+#include "src/core/lib/surface/completion_queue.h"
 
 typedef struct {
   grpc_closure closure;
diff --git a/src/core/surface/channel_stack_type.c b/src/core/lib/surface/channel_stack_type.c
similarity index 95%
rename from src/core/surface/channel_stack_type.c
rename to src/core/lib/surface/channel_stack_type.c
index 6fd33d4..c35d603 100644
--- a/src/core/surface/channel_stack_type.c
+++ b/src/core/lib/surface/channel_stack_type.c
@@ -31,16 +31,14 @@
  *
  */
 
-#include <grpc/support/port_platform.h>
-#include "src/core/surface/channel_stack_type.h"
+#include "src/core/lib/surface/channel_stack_type.h"
 #include <grpc/support/log.h>
+#include <grpc/support/port_platform.h>
 
 bool grpc_channel_stack_type_is_client(grpc_channel_stack_type type) {
   switch (type) {
     case GRPC_CLIENT_CHANNEL:
       return true;
-    case GRPC_CLIENT_UCHANNEL:
-      return true;
     case GRPC_CLIENT_SUBCHANNEL:
       return true;
     case GRPC_CLIENT_LAME_CHANNEL:
diff --git a/src/core/surface/channel_stack_type.h b/src/core/lib/surface/channel_stack_type.h
similarity index 88%
rename from src/core/surface/channel_stack_type.h
rename to src/core/lib/surface/channel_stack_type.h
index 846391a..16608fa 100644
--- a/src/core/surface/channel_stack_type.h
+++ b/src/core/lib/surface/channel_stack_type.h
@@ -31,17 +31,14 @@
  *
  */
 
-#ifndef GRPC_CORE_SURFACE_CHANNEL_STACK_TYPE_H
-#define GRPC_CORE_SURFACE_CHANNEL_STACK_TYPE_H
+#ifndef GRPC_CORE_LIB_SURFACE_CHANNEL_STACK_TYPE_H
+#define GRPC_CORE_LIB_SURFACE_CHANNEL_STACK_TYPE_H
 
 #include <stdbool.h>
 
 typedef enum {
   // normal top-half client channel with load-balancing, connection management
   GRPC_CLIENT_CHANNEL,
-  // abbreviated top-half client channel bound to one subchannel - for internal
-  // load balancing implementation
-  GRPC_CLIENT_UCHANNEL,
   // bottom-half of a client channel: everything that happens post-load
   // balancing (bound to a specific transport)
   GRPC_CLIENT_SUBCHANNEL,
@@ -58,4 +55,4 @@
 
 bool grpc_channel_stack_type_is_client(grpc_channel_stack_type type);
 
-#endif /* GRPC_CORE_SURFACE_CHANNEL_STACK_TYPE_H */
+#endif /* GRPC_CORE_LIB_SURFACE_CHANNEL_STACK_TYPE_H */
diff --git a/src/core/surface/completion_queue.c b/src/core/lib/surface/completion_queue.c
similarity index 97%
rename from src/core/surface/completion_queue.c
rename to src/core/lib/surface/completion_queue.c
index b22818e..a0d7002 100644
--- a/src/core/surface/completion_queue.c
+++ b/src/core/lib/surface/completion_queue.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/surface/completion_queue.h"
+#include "src/core/lib/surface/completion_queue.h"
 
 #include <stdio.h>
 #include <string.h>
@@ -41,14 +41,14 @@
 #include <grpc/support/log.h>
 #include <grpc/support/time.h>
 
-#include "src/core/iomgr/pollset.h"
-#include "src/core/iomgr/timer.h"
-#include "src/core/profiling/timers.h"
-#include "src/core/support/string.h"
-#include "src/core/surface/api_trace.h"
-#include "src/core/surface/call.h"
-#include "src/core/surface/event_string.h"
-#include "src/core/surface/surface_trace.h"
+#include "src/core/lib/iomgr/pollset.h"
+#include "src/core/lib/iomgr/timer.h"
+#include "src/core/lib/profiling/timers.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/surface/api_trace.h"
+#include "src/core/lib/surface/call.h"
+#include "src/core/lib/surface/event_string.h"
+#include "src/core/lib/surface/surface_trace.h"
 
 typedef struct {
   grpc_pollset_worker **worker;
diff --git a/src/core/surface/completion_queue.h b/src/core/lib/surface/completion_queue.h
similarity index 94%
rename from src/core/surface/completion_queue.h
rename to src/core/lib/surface/completion_queue.h
index 07f6d0c..35591cb 100644
--- a/src/core/surface/completion_queue.h
+++ b/src/core/lib/surface/completion_queue.h
@@ -31,13 +31,13 @@
  *
  */
 
-#ifndef GRPC_CORE_SURFACE_COMPLETION_QUEUE_H
-#define GRPC_CORE_SURFACE_COMPLETION_QUEUE_H
+#ifndef GRPC_CORE_LIB_SURFACE_COMPLETION_QUEUE_H
+#define GRPC_CORE_LIB_SURFACE_COMPLETION_QUEUE_H
 
 /* Internal API for completion queues */
 
-#include "src/core/iomgr/pollset.h"
 #include <grpc/grpc.h>
+#include "src/core/lib/iomgr/pollset.h"
 
 typedef struct grpc_cq_completion {
   /** user supplied tag */
@@ -88,4 +88,4 @@
 void grpc_cq_global_init(void);
 void grpc_cq_global_shutdown(void);
 
-#endif /* GRPC_CORE_SURFACE_COMPLETION_QUEUE_H */
+#endif /* GRPC_CORE_LIB_SURFACE_COMPLETION_QUEUE_H */
diff --git a/src/core/surface/event_string.c b/src/core/lib/surface/event_string.c
similarity index 95%
rename from src/core/surface/event_string.c
rename to src/core/lib/surface/event_string.c
index 33cd4a4..360c718 100644
--- a/src/core/surface/event_string.c
+++ b/src/core/lib/surface/event_string.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,13 +31,13 @@
  *
  */
 
-#include "src/core/surface/event_string.h"
+#include "src/core/lib/surface/event_string.h"
 
 #include <stdio.h>
 
-#include "src/core/support/string.h"
 #include <grpc/byte_buffer.h>
 #include <grpc/support/string_util.h>
+#include "src/core/lib/support/string.h"
 
 static void addhdr(gpr_strvec *buf, grpc_event *ev) {
   char *tmp;
diff --git a/src/core/surface/event_string.h b/src/core/lib/surface/event_string.h
similarity index 92%
rename from src/core/surface/event_string.h
rename to src/core/lib/surface/event_string.h
index d0598ce..577e9c7 100644
--- a/src/core/surface/event_string.h
+++ b/src/core/lib/surface/event_string.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_SURFACE_EVENT_STRING_H
-#define GRPC_CORE_SURFACE_EVENT_STRING_H
+#ifndef GRPC_CORE_LIB_SURFACE_EVENT_STRING_H
+#define GRPC_CORE_LIB_SURFACE_EVENT_STRING_H
 
 #include <grpc/grpc.h>
 
 /* Returns a string describing an event. Must be later freed with gpr_free() */
 char *grpc_event_string(grpc_event *ev);
 
-#endif /* GRPC_CORE_SURFACE_EVENT_STRING_H */
+#endif /* GRPC_CORE_LIB_SURFACE_EVENT_STRING_H */
diff --git a/src/core/surface/init.c b/src/core/lib/surface/init.c
similarity index 79%
rename from src/core/surface/init.c
rename to src/core/lib/surface/init.c
index b507709..dcb9c62 100644
--- a/src/core/surface/init.c
+++ b/src/core/lib/surface/init.c
@@ -40,37 +40,36 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/time.h>
 /* TODO(ctiller): find another way? - better not to include census here */
-#include "src/core/census/grpc_plugin.h"
-#include "src/core/channel/channel_stack.h"
-#include "src/core/channel/compress_filter.h"
-#include "src/core/channel/connected_channel.h"
-#include "src/core/channel/client_channel.h"
-#include "src/core/channel/client_uchannel.h"
-#include "src/core/channel/http_client_filter.h"
-#include "src/core/channel/http_server_filter.h"
-#include "src/core/client_config/lb_policy_registry.h"
-#include "src/core/client_config/lb_policies/pick_first.h"
-#include "src/core/client_config/lb_policies/round_robin.h"
-#include "src/core/client_config/resolver_registry.h"
-#include "src/core/client_config/resolvers/dns_resolver.h"
-#include "src/core/client_config/resolvers/sockaddr_resolver.h"
-#include "src/core/client_config/subchannel.h"
-#include "src/core/client_config/subchannel_index.h"
-#include "src/core/debug/trace.h"
-#include "src/core/iomgr/executor.h"
-#include "src/core/iomgr/iomgr.h"
-#include "src/core/profiling/timers.h"
-#include "src/core/surface/api_trace.h"
-#include "src/core/surface/call.h"
-#include "src/core/surface/channel_init.h"
-#include "src/core/surface/completion_queue.h"
-#include "src/core/surface/init.h"
-#include "src/core/surface/lame_client.h"
-#include "src/core/surface/server.h"
-#include "src/core/surface/surface_trace.h"
-#include "src/core/transport/chttp2_transport.h"
-#include "src/core/transport/connectivity_state.h"
-#include "src/core/transport/transport_impl.h"
+#include "src/core/lib/census/grpc_plugin.h"
+#include "src/core/lib/channel/channel_stack.h"
+#include "src/core/lib/channel/client_channel.h"
+#include "src/core/lib/channel/compress_filter.h"
+#include "src/core/lib/channel/connected_channel.h"
+#include "src/core/lib/channel/http_client_filter.h"
+#include "src/core/lib/channel/http_server_filter.h"
+#include "src/core/lib/client_config/lb_policies/pick_first.h"
+#include "src/core/lib/client_config/lb_policies/round_robin.h"
+#include "src/core/lib/client_config/lb_policy_registry.h"
+#include "src/core/lib/client_config/resolver_registry.h"
+#include "src/core/lib/client_config/resolvers/dns_resolver.h"
+#include "src/core/lib/client_config/resolvers/sockaddr_resolver.h"
+#include "src/core/lib/client_config/subchannel.h"
+#include "src/core/lib/client_config/subchannel_index.h"
+#include "src/core/lib/debug/trace.h"
+#include "src/core/lib/iomgr/executor.h"
+#include "src/core/lib/iomgr/iomgr.h"
+#include "src/core/lib/profiling/timers.h"
+#include "src/core/lib/surface/api_trace.h"
+#include "src/core/lib/surface/call.h"
+#include "src/core/lib/surface/channel_init.h"
+#include "src/core/lib/surface/completion_queue.h"
+#include "src/core/lib/surface/init.h"
+#include "src/core/lib/surface/lame_client.h"
+#include "src/core/lib/surface/server.h"
+#include "src/core/lib/surface/surface_trace.h"
+#include "src/core/lib/transport/chttp2_transport.h"
+#include "src/core/lib/transport/connectivity_state.h"
+#include "src/core/lib/transport/transport_impl.h"
 
 #ifndef GRPC_DEFAULT_NAME_PREFIX
 #define GRPC_DEFAULT_NAME_PREFIX "dns:///"
@@ -90,18 +89,21 @@
 }
 
 static bool append_filter(grpc_channel_stack_builder *builder, void *arg) {
-  return grpc_channel_stack_builder_append_filter(builder, arg, NULL, NULL);
+  return grpc_channel_stack_builder_append_filter(
+      builder, (const grpc_channel_filter *)arg, NULL, NULL);
 }
 
 static bool prepend_filter(grpc_channel_stack_builder *builder, void *arg) {
-  return grpc_channel_stack_builder_prepend_filter(builder, arg, NULL, NULL);
+  return grpc_channel_stack_builder_prepend_filter(
+      builder, (const grpc_channel_filter *)arg, NULL, NULL);
 }
 
 static bool maybe_add_http_filter(grpc_channel_stack_builder *builder,
                                   void *arg) {
   grpc_transport *t = grpc_channel_stack_builder_get_transport(builder);
   if (t && strstr(t->vtable->name, "http")) {
-    return grpc_channel_stack_builder_prepend_filter(builder, arg, NULL, NULL);
+    return grpc_channel_stack_builder_prepend_filter(
+        builder, (const grpc_channel_filter *)arg, NULL, NULL);
   }
   return true;
 }
@@ -112,9 +114,6 @@
   grpc_channel_init_register_stage(GRPC_CLIENT_DIRECT_CHANNEL, INT_MAX,
                                    prepend_filter,
                                    (void *)&grpc_compress_filter);
-  grpc_channel_init_register_stage(GRPC_CLIENT_UCHANNEL, INT_MAX,
-                                   prepend_filter,
-                                   (void *)&grpc_compress_filter);
   grpc_channel_init_register_stage(GRPC_SERVER_CHANNEL, INT_MAX, prepend_filter,
                                    (void *)&grpc_compress_filter);
   grpc_channel_init_register_stage(GRPC_CLIENT_SUBCHANNEL, INT_MAX,
@@ -134,8 +133,6 @@
                                    grpc_add_connected_filter, NULL);
   grpc_channel_init_register_stage(GRPC_CLIENT_CHANNEL, INT_MAX, append_filter,
                                    (void *)&grpc_client_channel_filter);
-  grpc_channel_init_register_stage(GRPC_CLIENT_UCHANNEL, INT_MAX, append_filter,
-                                   (void *)&grpc_client_uchannel_filter);
   grpc_channel_init_register_stage(GRPC_CLIENT_LAME_CHANNEL, INT_MAX,
                                    append_filter, (void *)&grpc_lame_filter);
   grpc_channel_init_register_stage(GRPC_SERVER_CHANNEL, INT_MAX, prepend_filter,
diff --git a/src/core/surface/init.h b/src/core/lib/surface/init.h
similarity index 93%
rename from src/core/surface/init.h
rename to src/core/lib/surface/init.h
index 5e358c7..10e2a58 100644
--- a/src/core/surface/init.h
+++ b/src/core/lib/surface/init.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_SURFACE_INIT_H
-#define GRPC_CORE_SURFACE_INIT_H
+#ifndef GRPC_CORE_LIB_SURFACE_INIT_H
+#define GRPC_CORE_LIB_SURFACE_INIT_H
 
 void grpc_register_security_filters(void);
 void grpc_security_pre_init(void);
 int grpc_is_initialized(void);
 
-#endif /* GRPC_CORE_SURFACE_INIT_H */
+#endif /* GRPC_CORE_LIB_SURFACE_INIT_H */
diff --git a/src/core/surface/init_secure.c b/src/core/lib/surface/init_secure.c
similarity index 89%
rename from src/core/surface/init_secure.c
rename to src/core/lib/surface/init_secure.c
index 311dda9..d3c2f64 100644
--- a/src/core/surface/init_secure.c
+++ b/src/core/lib/surface/init_secure.c
@@ -31,18 +31,18 @@
  *
  */
 
-#include "src/core/surface/init.h"
+#include "src/core/lib/surface/init.h"
 
 #include <limits.h>
 #include <string.h>
 
-#include "src/core/surface/channel_init.h"
-#include "src/core/debug/trace.h"
-#include "src/core/security/auth_filters.h"
-#include "src/core/security/credentials.h"
-#include "src/core/security/secure_endpoint.h"
-#include "src/core/security/security_connector.h"
-#include "src/core/tsi/transport_security_interface.h"
+#include "src/core/lib/debug/trace.h"
+#include "src/core/lib/security/auth_filters.h"
+#include "src/core/lib/security/credentials.h"
+#include "src/core/lib/security/secure_endpoint.h"
+#include "src/core/lib/security/security_connector.h"
+#include "src/core/lib/surface/channel_init.h"
+#include "src/core/lib/tsi/transport_security_interface.h"
 
 void grpc_security_pre_init(void) {
   grpc_register_tracer("secure_endpoint", &grpc_trace_secure_endpoint);
diff --git a/src/core/surface/init_unsecure.c b/src/core/lib/surface/init_unsecure.c
similarity index 97%
rename from src/core/surface/init_unsecure.c
rename to src/core/lib/surface/init_unsecure.c
index 278fcc8..243c005 100644
--- a/src/core/surface/init_unsecure.c
+++ b/src/core/lib/surface/init_unsecure.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/surface/init.h"
+#include "src/core/lib/surface/init.h"
 
 void grpc_security_pre_init(void) {}
 
diff --git a/src/core/surface/lame_client.c b/src/core/lib/surface/lame_client.c
similarity index 90%
rename from src/core/surface/lame_client.c
rename to src/core/lib/surface/lame_client.c
index 58f8994..95ec4b0 100644
--- a/src/core/surface/lame_client.c
+++ b/src/core/lib/surface/lame_client.c
@@ -31,19 +31,19 @@
  *
  */
 
-#include "src/core/surface/lame_client.h"
+#include "src/core/lib/surface/lame_client.h"
 
 #include <grpc/grpc.h>
 
 #include <string.h>
 
-#include "src/core/channel/channel_stack.h"
-#include "src/core/support/string.h"
-#include "src/core/surface/api_trace.h"
-#include "src/core/surface/channel.h"
-#include "src/core/surface/call.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
+#include "src/core/lib/channel/channel_stack.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/surface/api_trace.h"
+#include "src/core/lib/surface/call.h"
+#include "src/core/lib/surface/channel.h"
 
 typedef struct {
   grpc_linked_mdelem status;
@@ -118,10 +118,17 @@
                                  grpc_channel_element *elem) {}
 
 const grpc_channel_filter grpc_lame_filter = {
-    lame_start_transport_stream_op, lame_start_transport_op, sizeof(call_data),
-    init_call_elem, grpc_call_stack_ignore_set_pollset, destroy_call_elem,
-    sizeof(channel_data), init_channel_elem, destroy_channel_elem,
-    lame_get_peer, "lame-client",
+    lame_start_transport_stream_op,
+    lame_start_transport_op,
+    sizeof(call_data),
+    init_call_elem,
+    grpc_call_stack_ignore_set_pollset,
+    destroy_call_elem,
+    sizeof(channel_data),
+    init_channel_elem,
+    destroy_channel_elem,
+    lame_get_peer,
+    "lame-client",
 };
 
 #define CHANNEL_STACK_FROM_CHANNEL(c) ((grpc_channel_stack *)((c) + 1))
diff --git a/src/core/surface/lame_client.h b/src/core/lib/surface/lame_client.h
similarity index 89%
rename from src/core/surface/lame_client.h
rename to src/core/lib/surface/lame_client.h
index 3f3abd2..5f6ea34 100644
--- a/src/core/surface/lame_client.h
+++ b/src/core/lib/surface/lame_client.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_SURFACE_LAME_CLIENT_H
-#define GRPC_CORE_SURFACE_LAME_CLIENT_H
+#ifndef GRPC_CORE_LIB_SURFACE_LAME_CLIENT_H
+#define GRPC_CORE_LIB_SURFACE_LAME_CLIENT_H
 
-#include "src/core/channel/channel_stack.h"
+#include "src/core/lib/channel/channel_stack.h"
 
 extern const grpc_channel_filter grpc_lame_filter;
 
-#endif /* GRPC_CORE_SURFACE_LAME_CLIENT_H */
+#endif /* GRPC_CORE_LIB_SURFACE_LAME_CLIENT_H */
diff --git a/src/core/surface/metadata_array.c b/src/core/lib/surface/metadata_array.c
similarity index 95%
rename from src/core/surface/metadata_array.c
rename to src/core/lib/surface/metadata_array.c
index 4c7bf17..4436f2d 100644
--- a/src/core/surface/metadata_array.c
+++ b/src/core/lib/surface/metadata_array.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -36,7 +36,7 @@
 
 #include <string.h>
 
-#include "src/core/surface/api_trace.h"
+#include "src/core/lib/surface/api_trace.h"
 
 void grpc_metadata_array_init(grpc_metadata_array* array) {
   GRPC_API_TRACE("grpc_metadata_array_init(array=%p)", 1, (array));
diff --git a/src/core/surface/secure_channel_create.c b/src/core/lib/surface/secure_channel_create.c
similarity index 95%
rename from src/core/surface/secure_channel_create.c
rename to src/core/lib/surface/secure_channel_create.c
index cc75222..dcb3670 100644
--- a/src/core/surface/secure_channel_create.c
+++ b/src/core/lib/surface/secure_channel_create.c
@@ -40,17 +40,17 @@
 #include <grpc/support/slice.h>
 #include <grpc/support/slice_buffer.h>
 
-#include "src/core/channel/channel_args.h"
-#include "src/core/channel/client_channel.h"
-#include "src/core/client_config/resolver_registry.h"
-#include "src/core/iomgr/tcp_client.h"
-#include "src/core/security/auth_filters.h"
-#include "src/core/security/credentials.h"
-#include "src/core/security/security_context.h"
-#include "src/core/surface/api_trace.h"
-#include "src/core/surface/channel.h"
-#include "src/core/transport/chttp2_transport.h"
-#include "src/core/tsi/transport_security_interface.h"
+#include "src/core/lib/channel/channel_args.h"
+#include "src/core/lib/channel/client_channel.h"
+#include "src/core/lib/client_config/resolver_registry.h"
+#include "src/core/lib/iomgr/tcp_client.h"
+#include "src/core/lib/security/auth_filters.h"
+#include "src/core/lib/security/credentials.h"
+#include "src/core/lib/security/security_context.h"
+#include "src/core/lib/surface/api_trace.h"
+#include "src/core/lib/surface/channel.h"
+#include "src/core/lib/transport/chttp2_transport.h"
+#include "src/core/lib/tsi/transport_security_interface.h"
 
 typedef struct {
   grpc_connector base;
diff --git a/src/core/surface/server.c b/src/core/lib/surface/server.c
similarity index 97%
rename from src/core/surface/server.c
rename to src/core/lib/surface/server.c
index da93474..080734e 100644
--- a/src/core/surface/server.c
+++ b/src/core/lib/surface/server.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/surface/server.h"
+#include "src/core/lib/surface/server.h"
 
 #include <limits.h>
 #include <stdlib.h>
@@ -42,18 +42,18 @@
 #include <grpc/support/string_util.h>
 #include <grpc/support/useful.h>
 
-#include "src/core/channel/channel_args.h"
-#include "src/core/channel/connected_channel.h"
-#include "src/core/iomgr/iomgr.h"
-#include "src/core/support/stack_lockfree.h"
-#include "src/core/support/string.h"
-#include "src/core/surface/api_trace.h"
-#include "src/core/surface/call.h"
-#include "src/core/surface/channel.h"
-#include "src/core/surface/completion_queue.h"
-#include "src/core/surface/init.h"
-#include "src/core/transport/metadata.h"
-#include "src/core/transport/static_metadata.h"
+#include "src/core/lib/channel/channel_args.h"
+#include "src/core/lib/channel/connected_channel.h"
+#include "src/core/lib/iomgr/iomgr.h"
+#include "src/core/lib/support/stack_lockfree.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/surface/api_trace.h"
+#include "src/core/lib/surface/call.h"
+#include "src/core/lib/surface/channel.h"
+#include "src/core/lib/surface/completion_queue.h"
+#include "src/core/lib/surface/init.h"
+#include "src/core/lib/transport/metadata.h"
+#include "src/core/lib/transport/static_metadata.h"
 
 typedef struct listener {
   void *arg;
@@ -754,10 +754,17 @@
 }
 
 const grpc_channel_filter grpc_server_top_filter = {
-    server_start_transport_stream_op, grpc_channel_next_op, sizeof(call_data),
-    init_call_elem, grpc_call_stack_ignore_set_pollset, destroy_call_elem,
-    sizeof(channel_data), init_channel_elem, destroy_channel_elem,
-    grpc_call_next_get_peer, "server",
+    server_start_transport_stream_op,
+    grpc_channel_next_op,
+    sizeof(call_data),
+    init_call_elem,
+    grpc_call_stack_ignore_set_pollset,
+    destroy_call_elem,
+    sizeof(channel_data),
+    init_channel_elem,
+    destroy_channel_elem,
+    grpc_call_next_get_peer,
+    "server",
 };
 
 void grpc_server_register_completion_queue(grpc_server *server,
@@ -895,7 +902,8 @@
   channel =
       grpc_channel_create(exec_ctx, NULL, args, GRPC_SERVER_CHANNEL, transport);
   chand = (channel_data *)grpc_channel_stack_element(
-              grpc_channel_get_channel_stack(channel), 0)->channel_data;
+              grpc_channel_get_channel_stack(channel), 0)
+              ->channel_data;
   chand->server = s;
   server_ref(s);
   chand->channel = channel;
@@ -916,7 +924,7 @@
       method = grpc_mdstr_from_string(rm->method);
       hash = GRPC_MDSTR_KV_HASH(host ? host->hash : 0, method->hash);
       for (probes = 0; chand->registered_methods[(hash + probes) % slots]
-                               .server_registered_method != NULL;
+                           .server_registered_method != NULL;
            probes++)
         ;
       if (probes > max_probes) max_probes = probes;
diff --git a/src/core/surface/server.h b/src/core/lib/surface/server.h
similarity index 92%
rename from src/core/surface/server.h
rename to src/core/lib/surface/server.h
index cd62ead..3845eb2 100644
--- a/src/core/surface/server.h
+++ b/src/core/lib/surface/server.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_SURFACE_SERVER_H
-#define GRPC_CORE_SURFACE_SERVER_H
+#ifndef GRPC_CORE_LIB_SURFACE_SERVER_H
+#define GRPC_CORE_LIB_SURFACE_SERVER_H
 
 #include <grpc/grpc.h>
-#include "src/core/channel/channel_stack.h"
-#include "src/core/transport/transport.h"
+#include "src/core/lib/channel/channel_stack.h"
+#include "src/core/lib/transport/transport.h"
 
 extern const grpc_channel_filter grpc_server_top_filter;
 
@@ -59,4 +59,4 @@
 
 int grpc_server_has_open_connections(grpc_server *server);
 
-#endif /* GRPC_CORE_SURFACE_SERVER_H */
+#endif /* GRPC_CORE_LIB_SURFACE_SERVER_H */
diff --git a/src/core/surface/server_chttp2.c b/src/core/lib/surface/server_chttp2.c
similarity index 94%
rename from src/core/surface/server_chttp2.c
rename to src/core/lib/surface/server_chttp2.c
index ff2840f..f0c2ee5 100644
--- a/src/core/surface/server_chttp2.c
+++ b/src/core/lib/surface/server_chttp2.c
@@ -33,15 +33,15 @@
 
 #include <grpc/grpc.h>
 
-#include "src/core/channel/http_server_filter.h"
-#include "src/core/iomgr/resolve_address.h"
-#include "src/core/iomgr/tcp_server.h"
-#include "src/core/surface/api_trace.h"
-#include "src/core/surface/server.h"
-#include "src/core/transport/chttp2_transport.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/useful.h>
+#include "src/core/lib/channel/http_server_filter.h"
+#include "src/core/lib/iomgr/resolve_address.h"
+#include "src/core/lib/iomgr/tcp_server.h"
+#include "src/core/lib/surface/api_trace.h"
+#include "src/core/lib/surface/server.h"
+#include "src/core/lib/transport/chttp2_transport.h"
 
 static void setup_transport(grpc_exec_ctx *exec_ctx, void *server,
                             grpc_transport *transport) {
diff --git a/src/core/surface/surface_trace.h b/src/core/lib/surface/surface_trace.h
similarity index 89%
rename from src/core/surface/surface_trace.h
rename to src/core/lib/surface/surface_trace.h
index ed820eb..6b3f673 100644
--- a/src/core/surface/surface_trace.h
+++ b/src/core/lib/surface/surface_trace.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_SURFACE_SURFACE_TRACE_H
-#define GRPC_CORE_SURFACE_SURFACE_TRACE_H
+#ifndef GRPC_CORE_LIB_SURFACE_SURFACE_TRACE_H
+#define GRPC_CORE_LIB_SURFACE_SURFACE_TRACE_H
 
-#include "src/core/debug/trace.h"
-#include "src/core/surface/api_trace.h"
 #include <grpc/support/log.h>
+#include "src/core/lib/debug/trace.h"
+#include "src/core/lib/surface/api_trace.h"
 
 #define GRPC_SURFACE_TRACE_RETURNED_EVENT(cq, event)    \
   if (grpc_api_trace) {                                 \
@@ -45,4 +45,4 @@
     gpr_free(_ev);                                      \
   }
 
-#endif /* GRPC_CORE_SURFACE_SURFACE_TRACE_H */
+#endif /* GRPC_CORE_LIB_SURFACE_SURFACE_TRACE_H */
diff --git a/src/core/surface/validate_metadata.c b/src/core/lib/surface/validate_metadata.c
similarity index 100%
rename from src/core/surface/validate_metadata.c
rename to src/core/lib/surface/validate_metadata.c
diff --git a/src/core/surface/version.c b/src/core/lib/surface/version.c
similarity index 100%
rename from src/core/surface/version.c
rename to src/core/lib/surface/version.c
diff --git a/src/core/transport/byte_stream.c b/src/core/lib/transport/byte_stream.c
similarity index 97%
rename from src/core/transport/byte_stream.c
rename to src/core/lib/transport/byte_stream.c
index 8e6fb2c..79981aa 100644
--- a/src/core/transport/byte_stream.c
+++ b/src/core/lib/transport/byte_stream.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/transport/byte_stream.h"
+#include "src/core/lib/transport/byte_stream.h"
 
 #include <stdlib.h>
 
diff --git a/src/core/transport/byte_stream.h b/src/core/lib/transport/byte_stream.h
similarity index 94%
rename from src/core/transport/byte_stream.h
rename to src/core/lib/transport/byte_stream.h
index b8d0ade..e7346da 100644
--- a/src/core/transport/byte_stream.h
+++ b/src/core/lib/transport/byte_stream.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_TRANSPORT_BYTE_STREAM_H
-#define GRPC_CORE_TRANSPORT_BYTE_STREAM_H
+#ifndef GRPC_CORE_LIB_TRANSPORT_BYTE_STREAM_H
+#define GRPC_CORE_LIB_TRANSPORT_BYTE_STREAM_H
 
-#include "src/core/iomgr/exec_ctx.h"
 #include <grpc/support/slice_buffer.h>
+#include "src/core/lib/iomgr/exec_ctx.h"
 
 /** Internal bit flag for grpc_begin_message's \a flags signaling the use of
  * compression for the message */
@@ -86,4 +86,4 @@
                                    gpr_slice_buffer *slice_buffer,
                                    uint32_t flags);
 
-#endif /* GRPC_CORE_TRANSPORT_BYTE_STREAM_H */
+#endif /* GRPC_CORE_LIB_TRANSPORT_BYTE_STREAM_H */
diff --git a/src/core/transport/chttp2/alpn.c b/src/core/lib/transport/chttp2/alpn.c
similarity index 96%
rename from src/core/transport/chttp2/alpn.c
rename to src/core/lib/transport/chttp2/alpn.c
index 69da4e6..befe319 100644
--- a/src/core/transport/chttp2/alpn.c
+++ b/src/core/lib/transport/chttp2/alpn.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/transport/chttp2/alpn.h"
+#include "src/core/lib/transport/chttp2/alpn.h"
 #include <grpc/support/log.h>
 #include <grpc/support/useful.h>
 
diff --git a/src/core/transport/chttp2/alpn.h b/src/core/lib/transport/chttp2/alpn.h
similarity index 93%
rename from src/core/transport/chttp2/alpn.h
rename to src/core/lib/transport/chttp2/alpn.h
index 68010e3..a9184e6 100644
--- a/src/core/transport/chttp2/alpn.h
+++ b/src/core/lib/transport/chttp2/alpn.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_TRANSPORT_CHTTP2_ALPN_H
-#define GRPC_CORE_TRANSPORT_CHTTP2_ALPN_H
+#ifndef GRPC_CORE_LIB_TRANSPORT_CHTTP2_ALPN_H
+#define GRPC_CORE_LIB_TRANSPORT_CHTTP2_ALPN_H
 
 #include <string.h>
 
@@ -46,4 +46,4 @@
  * grpc_chttp2_num_alpn_versions()) */
 const char *grpc_chttp2_get_alpn_version_index(size_t i);
 
-#endif /* GRPC_CORE_TRANSPORT_CHTTP2_ALPN_H */
+#endif /* GRPC_CORE_LIB_TRANSPORT_CHTTP2_ALPN_H */
diff --git a/src/core/transport/chttp2/bin_encoder.c b/src/core/lib/transport/chttp2/bin_encoder.c
similarity index 65%
rename from src/core/transport/chttp2/bin_encoder.c
rename to src/core/lib/transport/chttp2/bin_encoder.c
index f26bc7e..79d0aa3 100644
--- a/src/core/transport/chttp2/bin_encoder.c
+++ b/src/core/lib/transport/chttp2/bin_encoder.c
@@ -31,12 +31,12 @@
  *
  */
 
-#include "src/core/transport/chttp2/bin_encoder.h"
+#include "src/core/lib/transport/chttp2/bin_encoder.h"
 
 #include <string.h>
 
-#include "src/core/transport/chttp2/huffsyms.h"
 #include <grpc/support/log.h>
+#include "src/core/lib/transport/chttp2/huffsyms.h"
 
 static const char alphabet[] =
     "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
@@ -46,70 +46,18 @@
   uint8_t length;
 } b64_huff_sym;
 
-static const b64_huff_sym huff_alphabet[64] = {{0x21, 6},
-                                               {0x5d, 7},
-                                               {0x5e, 7},
-                                               {0x5f, 7},
-                                               {0x60, 7},
-                                               {0x61, 7},
-                                               {0x62, 7},
-                                               {0x63, 7},
-                                               {0x64, 7},
-                                               {0x65, 7},
-                                               {0x66, 7},
-                                               {0x67, 7},
-                                               {0x68, 7},
-                                               {0x69, 7},
-                                               {0x6a, 7},
-                                               {0x6b, 7},
-                                               {0x6c, 7},
-                                               {0x6d, 7},
-                                               {0x6e, 7},
-                                               {0x6f, 7},
-                                               {0x70, 7},
-                                               {0x71, 7},
-                                               {0x72, 7},
-                                               {0xfc, 8},
-                                               {0x73, 7},
-                                               {0xfd, 8},
-                                               {0x3, 5},
-                                               {0x23, 6},
-                                               {0x4, 5},
-                                               {0x24, 6},
-                                               {0x5, 5},
-                                               {0x25, 6},
-                                               {0x26, 6},
-                                               {0x27, 6},
-                                               {0x6, 5},
-                                               {0x74, 7},
-                                               {0x75, 7},
-                                               {0x28, 6},
-                                               {0x29, 6},
-                                               {0x2a, 6},
-                                               {0x7, 5},
-                                               {0x2b, 6},
-                                               {0x76, 7},
-                                               {0x2c, 6},
-                                               {0x8, 5},
-                                               {0x9, 5},
-                                               {0x2d, 6},
-                                               {0x77, 7},
-                                               {0x78, 7},
-                                               {0x79, 7},
-                                               {0x7a, 7},
-                                               {0x7b, 7},
-                                               {0x0, 5},
-                                               {0x1, 5},
-                                               {0x2, 5},
-                                               {0x19, 6},
-                                               {0x1a, 6},
-                                               {0x1b, 6},
-                                               {0x1c, 6},
-                                               {0x1d, 6},
-                                               {0x1e, 6},
-                                               {0x1f, 6},
-                                               {0x7fb, 11},
-                                               {0x18, 6}};
+static const b64_huff_sym huff_alphabet[64] = {
+    {0x21, 6}, {0x5d, 7}, {0x5e, 7},   {0x5f, 7}, {0x60, 7}, {0x61, 7},
+    {0x62, 7}, {0x63, 7}, {0x64, 7},   {0x65, 7}, {0x66, 7}, {0x67, 7},
+    {0x68, 7}, {0x69, 7}, {0x6a, 7},   {0x6b, 7}, {0x6c, 7}, {0x6d, 7},
+    {0x6e, 7}, {0x6f, 7}, {0x70, 7},   {0x71, 7}, {0x72, 7}, {0xfc, 8},
+    {0x73, 7}, {0xfd, 8}, {0x3, 5},    {0x23, 6}, {0x4, 5},  {0x24, 6},
+    {0x5, 5},  {0x25, 6}, {0x26, 6},   {0x27, 6}, {0x6, 5},  {0x74, 7},
+    {0x75, 7}, {0x28, 6}, {0x29, 6},   {0x2a, 6}, {0x7, 5},  {0x2b, 6},
+    {0x76, 7}, {0x2c, 6}, {0x8, 5},    {0x9, 5},  {0x2d, 6}, {0x77, 7},
+    {0x78, 7}, {0x79, 7}, {0x7a, 7},   {0x7b, 7}, {0x0, 5},  {0x1, 5},
+    {0x2, 5},  {0x19, 6}, {0x1a, 6},   {0x1b, 6}, {0x1c, 6}, {0x1d, 6},
+    {0x1e, 6}, {0x1f, 6}, {0x7fb, 11}, {0x18, 6}};
 
 static const uint8_t tail_xtra[3] = {0, 2, 3};
 
diff --git a/src/core/transport/chttp2/bin_encoder.h b/src/core/lib/transport/chttp2/bin_encoder.h
similarity index 92%
rename from src/core/transport/chttp2/bin_encoder.h
rename to src/core/lib/transport/chttp2/bin_encoder.h
index edb6f2d..1c5cd1e 100644
--- a/src/core/transport/chttp2/bin_encoder.h
+++ b/src/core/lib/transport/chttp2/bin_encoder.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_TRANSPORT_CHTTP2_BIN_ENCODER_H
-#define GRPC_CORE_TRANSPORT_CHTTP2_BIN_ENCODER_H
+#ifndef GRPC_CORE_LIB_TRANSPORT_CHTTP2_BIN_ENCODER_H
+#define GRPC_CORE_LIB_TRANSPORT_CHTTP2_BIN_ENCODER_H
 
 #include <grpc/support/slice.h>
 
@@ -51,4 +51,4 @@
    return y; */
 gpr_slice grpc_chttp2_base64_encode_and_huffman_compress(gpr_slice input);
 
-#endif /* GRPC_CORE_TRANSPORT_CHTTP2_BIN_ENCODER_H */
+#endif /* GRPC_CORE_LIB_TRANSPORT_CHTTP2_BIN_ENCODER_H */
diff --git a/src/core/transport/chttp2/frame.h b/src/core/lib/transport/chttp2/frame.h
similarity index 94%
rename from src/core/transport/chttp2/frame.h
rename to src/core/lib/transport/chttp2/frame.h
index 560a667..4674bc9 100644
--- a/src/core/transport/chttp2/frame.h
+++ b/src/core/lib/transport/chttp2/frame.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_TRANSPORT_CHTTP2_FRAME_H
-#define GRPC_CORE_TRANSPORT_CHTTP2_FRAME_H
+#ifndef GRPC_CORE_LIB_TRANSPORT_CHTTP2_FRAME_H
+#define GRPC_CORE_LIB_TRANSPORT_CHTTP2_FRAME_H
 
 #include <grpc/support/port_platform.h>
 #include <grpc/support/slice.h>
@@ -66,4 +66,4 @@
 #define GRPC_CHTTP2_DATA_FLAG_PADDED 8
 #define GRPC_CHTTP2_FLAG_HAS_PRIORITY 0x20
 
-#endif /* GRPC_CORE_TRANSPORT_CHTTP2_FRAME_H */
+#endif /* GRPC_CORE_LIB_TRANSPORT_CHTTP2_FRAME_H */
diff --git a/src/core/transport/chttp2/frame_data.c b/src/core/lib/transport/chttp2/frame_data.c
similarity index 97%
rename from src/core/transport/chttp2/frame_data.c
rename to src/core/lib/transport/chttp2/frame_data.c
index f9a1af8..cf25c3c 100644
--- a/src/core/transport/chttp2/frame_data.c
+++ b/src/core/lib/transport/chttp2/frame_data.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,16 +31,16 @@
  *
  */
 
-#include "src/core/transport/chttp2/frame_data.h"
+#include "src/core/lib/transport/chttp2/frame_data.h"
 
 #include <string.h>
 
-#include "src/core/transport/chttp2/internal.h"
-#include "src/core/support/string.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/useful.h>
-#include "src/core/transport/transport.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/transport/chttp2/internal.h"
+#include "src/core/lib/transport/transport.h"
 
 grpc_chttp2_parse_error grpc_chttp2_data_parser_init(
     grpc_chttp2_data_parser *parser) {
diff --git a/src/core/transport/chttp2/frame_data.h b/src/core/lib/transport/chttp2/frame_data.h
similarity index 92%
rename from src/core/transport/chttp2/frame_data.h
rename to src/core/lib/transport/chttp2/frame_data.h
index 92929d5..da404a4 100644
--- a/src/core/transport/chttp2/frame_data.h
+++ b/src/core/lib/transport/chttp2/frame_data.h
@@ -31,16 +31,16 @@
  *
  */
 
-#ifndef GRPC_CORE_TRANSPORT_CHTTP2_FRAME_DATA_H
-#define GRPC_CORE_TRANSPORT_CHTTP2_FRAME_DATA_H
+#ifndef GRPC_CORE_LIB_TRANSPORT_CHTTP2_FRAME_DATA_H
+#define GRPC_CORE_LIB_TRANSPORT_CHTTP2_FRAME_DATA_H
 
 /* Parser for GRPC streams embedded in DATA frames */
 
-#include "src/core/iomgr/exec_ctx.h"
 #include <grpc/support/slice.h>
 #include <grpc/support/slice_buffer.h>
-#include "src/core/transport/byte_stream.h"
-#include "src/core/transport/chttp2/frame.h"
+#include "src/core/lib/iomgr/exec_ctx.h"
+#include "src/core/lib/transport/byte_stream.h"
+#include "src/core/lib/transport/chttp2/frame.h"
 
 typedef enum {
   GRPC_CHTTP2_DATA_FH_0,
@@ -98,4 +98,4 @@
                              uint32_t write_bytes, int is_eof,
                              gpr_slice_buffer *outbuf);
 
-#endif /* GRPC_CORE_TRANSPORT_CHTTP2_FRAME_DATA_H */
+#endif /* GRPC_CORE_LIB_TRANSPORT_CHTTP2_FRAME_DATA_H */
diff --git a/src/core/transport/chttp2/frame_goaway.c b/src/core/lib/transport/chttp2/frame_goaway.c
similarity index 97%
rename from src/core/transport/chttp2/frame_goaway.c
rename to src/core/lib/transport/chttp2/frame_goaway.c
index 2fa525e..bb8c28d 100644
--- a/src/core/transport/chttp2/frame_goaway.c
+++ b/src/core/lib/transport/chttp2/frame_goaway.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,8 +31,8 @@
  *
  */
 
-#include "src/core/transport/chttp2/frame_goaway.h"
-#include "src/core/transport/chttp2/internal.h"
+#include "src/core/lib/transport/chttp2/frame_goaway.h"
+#include "src/core/lib/transport/chttp2/internal.h"
 
 #include <string.h>
 
diff --git a/src/core/transport/chttp2/frame_goaway.h b/src/core/lib/transport/chttp2/frame_goaway.h
similarity index 91%
rename from src/core/transport/chttp2/frame_goaway.h
rename to src/core/lib/transport/chttp2/frame_goaway.h
index 616287e..f64c44f 100644
--- a/src/core/transport/chttp2/frame_goaway.h
+++ b/src/core/lib/transport/chttp2/frame_goaway.h
@@ -31,14 +31,14 @@
  *
  */
 
-#ifndef GRPC_CORE_TRANSPORT_CHTTP2_FRAME_GOAWAY_H
-#define GRPC_CORE_TRANSPORT_CHTTP2_FRAME_GOAWAY_H
+#ifndef GRPC_CORE_LIB_TRANSPORT_CHTTP2_FRAME_GOAWAY_H
+#define GRPC_CORE_LIB_TRANSPORT_CHTTP2_FRAME_GOAWAY_H
 
-#include "src/core/iomgr/exec_ctx.h"
-#include "src/core/transport/chttp2/frame.h"
 #include <grpc/support/port_platform.h>
 #include <grpc/support/slice.h>
 #include <grpc/support/slice_buffer.h>
+#include "src/core/lib/iomgr/exec_ctx.h"
+#include "src/core/lib/transport/chttp2/frame.h"
 
 typedef enum {
   GRPC_CHTTP2_GOAWAY_LSI0,
@@ -74,4 +74,4 @@
                                gpr_slice debug_data,
                                gpr_slice_buffer *slice_buffer);
 
-#endif /* GRPC_CORE_TRANSPORT_CHTTP2_FRAME_GOAWAY_H */
+#endif /* GRPC_CORE_LIB_TRANSPORT_CHTTP2_FRAME_GOAWAY_H */
diff --git a/src/core/transport/chttp2/frame_ping.c b/src/core/lib/transport/chttp2/frame_ping.c
similarity index 95%
rename from src/core/transport/chttp2/frame_ping.c
rename to src/core/lib/transport/chttp2/frame_ping.c
index c6ab522..14ca394 100644
--- a/src/core/transport/chttp2/frame_ping.c
+++ b/src/core/lib/transport/chttp2/frame_ping.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,8 +31,8 @@
  *
  */
 
-#include "src/core/transport/chttp2/frame_ping.h"
-#include "src/core/transport/chttp2/internal.h"
+#include "src/core/lib/transport/chttp2/frame_ping.h"
+#include "src/core/lib/transport/chttp2/internal.h"
 
 #include <string.h>
 
diff --git a/src/core/transport/chttp2/frame_ping.h b/src/core/lib/transport/chttp2/frame_ping.h
similarity index 89%
rename from src/core/transport/chttp2/frame_ping.h
rename to src/core/lib/transport/chttp2/frame_ping.h
index fc4dd7a..7640fc4 100644
--- a/src/core/transport/chttp2/frame_ping.h
+++ b/src/core/lib/transport/chttp2/frame_ping.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_TRANSPORT_CHTTP2_FRAME_PING_H
-#define GRPC_CORE_TRANSPORT_CHTTP2_FRAME_PING_H
+#ifndef GRPC_CORE_LIB_TRANSPORT_CHTTP2_FRAME_PING_H
+#define GRPC_CORE_LIB_TRANSPORT_CHTTP2_FRAME_PING_H
 
-#include "src/core/iomgr/exec_ctx.h"
 #include <grpc/support/slice.h>
-#include "src/core/transport/chttp2/frame.h"
+#include "src/core/lib/iomgr/exec_ctx.h"
+#include "src/core/lib/transport/chttp2/frame.h"
 
 typedef struct {
   uint8_t byte;
@@ -53,4 +53,4 @@
     grpc_chttp2_transport_parsing *transport_parsing,
     grpc_chttp2_stream_parsing *stream_parsing, gpr_slice slice, int is_last);
 
-#endif /* GRPC_CORE_TRANSPORT_CHTTP2_FRAME_PING_H */
+#endif /* GRPC_CORE_LIB_TRANSPORT_CHTTP2_FRAME_PING_H */
diff --git a/src/core/transport/chttp2/frame_rst_stream.c b/src/core/lib/transport/chttp2/frame_rst_stream.c
similarity index 94%
rename from src/core/transport/chttp2/frame_rst_stream.c
rename to src/core/lib/transport/chttp2/frame_rst_stream.c
index 754529e..060912a 100644
--- a/src/core/transport/chttp2/frame_rst_stream.c
+++ b/src/core/lib/transport/chttp2/frame_rst_stream.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,12 +31,12 @@
  *
  */
 
-#include "src/core/transport/chttp2/frame_rst_stream.h"
-#include "src/core/transport/chttp2/internal.h"
+#include "src/core/lib/transport/chttp2/frame_rst_stream.h"
+#include "src/core/lib/transport/chttp2/internal.h"
 
 #include <grpc/support/log.h>
 
-#include "src/core/transport/chttp2/frame.h"
+#include "src/core/lib/transport/chttp2/frame.h"
 
 gpr_slice grpc_chttp2_rst_stream_create(uint32_t id, uint32_t code) {
   gpr_slice slice = gpr_slice_malloc(13);
diff --git a/src/core/transport/chttp2/frame_rst_stream.h b/src/core/lib/transport/chttp2/frame_rst_stream.h
similarity index 88%
rename from src/core/transport/chttp2/frame_rst_stream.h
rename to src/core/lib/transport/chttp2/frame_rst_stream.h
index d563a22..93155fd 100644
--- a/src/core/transport/chttp2/frame_rst_stream.h
+++ b/src/core/lib/transport/chttp2/frame_rst_stream.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_TRANSPORT_CHTTP2_FRAME_RST_STREAM_H
-#define GRPC_CORE_TRANSPORT_CHTTP2_FRAME_RST_STREAM_H
+#ifndef GRPC_CORE_LIB_TRANSPORT_CHTTP2_FRAME_RST_STREAM_H
+#define GRPC_CORE_LIB_TRANSPORT_CHTTP2_FRAME_RST_STREAM_H
 
 #include <grpc/support/slice.h>
-#include "src/core/transport/chttp2/frame.h"
-#include "src/core/iomgr/exec_ctx.h"
+#include "src/core/lib/iomgr/exec_ctx.h"
+#include "src/core/lib/transport/chttp2/frame.h"
 
 typedef struct {
   uint8_t byte;
@@ -52,4 +52,4 @@
     grpc_chttp2_transport_parsing *transport_parsing,
     grpc_chttp2_stream_parsing *stream_parsing, gpr_slice slice, int is_last);
 
-#endif /* GRPC_CORE_TRANSPORT_CHTTP2_FRAME_RST_STREAM_H */
+#endif /* GRPC_CORE_LIB_TRANSPORT_CHTTP2_FRAME_RST_STREAM_H */
diff --git a/src/core/transport/chttp2/frame_settings.c b/src/core/lib/transport/chttp2/frame_settings.c
similarity index 96%
rename from src/core/transport/chttp2/frame_settings.c
rename to src/core/lib/transport/chttp2/frame_settings.c
index cc49dd4..48429c2 100644
--- a/src/core/transport/chttp2/frame_settings.c
+++ b/src/core/lib/transport/chttp2/frame_settings.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,18 +31,18 @@
  *
  */
 
-#include "src/core/transport/chttp2/frame_settings.h"
-#include "src/core/transport/chttp2/internal.h"
+#include "src/core/lib/transport/chttp2/frame_settings.h"
+#include "src/core/lib/transport/chttp2/internal.h"
 
 #include <string.h>
 
 #include <grpc/support/log.h>
 #include <grpc/support/useful.h>
 
-#include "src/core/debug/trace.h"
-#include "src/core/transport/chttp2/frame.h"
-#include "src/core/transport/chttp2/http2_errors.h"
-#include "src/core/transport/chttp2_transport.h"
+#include "src/core/lib/debug/trace.h"
+#include "src/core/lib/transport/chttp2/frame.h"
+#include "src/core/lib/transport/chttp2/http2_errors.h"
+#include "src/core/lib/transport/chttp2_transport.h"
 
 #define MAX_MAX_HEADER_LIST_SIZE (1024 * 1024 * 1024)
 
diff --git a/src/core/transport/chttp2/frame_settings.h b/src/core/lib/transport/chttp2/frame_settings.h
similarity index 93%
rename from src/core/transport/chttp2/frame_settings.h
rename to src/core/lib/transport/chttp2/frame_settings.h
index e3c10d3..8b294de 100644
--- a/src/core/transport/chttp2/frame_settings.h
+++ b/src/core/lib/transport/chttp2/frame_settings.h
@@ -31,13 +31,13 @@
  *
  */
 
-#ifndef GRPC_CORE_TRANSPORT_CHTTP2_FRAME_SETTINGS_H
-#define GRPC_CORE_TRANSPORT_CHTTP2_FRAME_SETTINGS_H
+#ifndef GRPC_CORE_LIB_TRANSPORT_CHTTP2_FRAME_SETTINGS_H
+#define GRPC_CORE_LIB_TRANSPORT_CHTTP2_FRAME_SETTINGS_H
 
 #include <grpc/support/port_platform.h>
 #include <grpc/support/slice.h>
-#include "src/core/transport/chttp2/frame.h"
-#include "src/core/iomgr/exec_ctx.h"
+#include "src/core/lib/iomgr/exec_ctx.h"
+#include "src/core/lib/transport/chttp2/frame.h"
 
 typedef enum {
   GRPC_CHTTP2_SPS_ID0,
@@ -100,4 +100,4 @@
     grpc_chttp2_transport_parsing *transport_parsing,
     grpc_chttp2_stream_parsing *stream_parsing, gpr_slice slice, int is_last);
 
-#endif /* GRPC_CORE_TRANSPORT_CHTTP2_FRAME_SETTINGS_H */
+#endif /* GRPC_CORE_LIB_TRANSPORT_CHTTP2_FRAME_SETTINGS_H */
diff --git a/src/core/transport/chttp2/frame_window_update.c b/src/core/lib/transport/chttp2/frame_window_update.c
similarity index 96%
rename from src/core/transport/chttp2/frame_window_update.c
rename to src/core/lib/transport/chttp2/frame_window_update.c
index 62d9bac..2ab5003 100644
--- a/src/core/transport/chttp2/frame_window_update.c
+++ b/src/core/lib/transport/chttp2/frame_window_update.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,8 +31,8 @@
  *
  */
 
-#include "src/core/transport/chttp2/frame_window_update.h"
-#include "src/core/transport/chttp2/internal.h"
+#include "src/core/lib/transport/chttp2/frame_window_update.h"
+#include "src/core/lib/transport/chttp2/internal.h"
 
 #include <grpc/support/log.h>
 
diff --git a/src/core/transport/chttp2/frame_window_update.h b/src/core/lib/transport/chttp2/frame_window_update.h
similarity index 88%
rename from src/core/transport/chttp2/frame_window_update.h
rename to src/core/lib/transport/chttp2/frame_window_update.h
index 0b3712b..4b1aea2 100644
--- a/src/core/transport/chttp2/frame_window_update.h
+++ b/src/core/lib/transport/chttp2/frame_window_update.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_TRANSPORT_CHTTP2_FRAME_WINDOW_UPDATE_H
-#define GRPC_CORE_TRANSPORT_CHTTP2_FRAME_WINDOW_UPDATE_H
+#ifndef GRPC_CORE_LIB_TRANSPORT_CHTTP2_FRAME_WINDOW_UPDATE_H
+#define GRPC_CORE_LIB_TRANSPORT_CHTTP2_FRAME_WINDOW_UPDATE_H
 
-#include "src/core/iomgr/exec_ctx.h"
 #include <grpc/support/slice.h>
-#include "src/core/transport/chttp2/frame.h"
+#include "src/core/lib/iomgr/exec_ctx.h"
+#include "src/core/lib/transport/chttp2/frame.h"
 
 typedef struct {
   uint8_t byte;
@@ -53,4 +53,4 @@
     grpc_chttp2_transport_parsing *transport_parsing,
     grpc_chttp2_stream_parsing *stream_parsing, gpr_slice slice, int is_last);
 
-#endif /* GRPC_CORE_TRANSPORT_CHTTP2_FRAME_WINDOW_UPDATE_H */
+#endif /* GRPC_CORE_LIB_TRANSPORT_CHTTP2_FRAME_WINDOW_UPDATE_H */
diff --git a/src/core/transport/chttp2/hpack_encoder.c b/src/core/lib/transport/chttp2/hpack_encoder.c
similarity index 98%
rename from src/core/transport/chttp2/hpack_encoder.c
rename to src/core/lib/transport/chttp2/hpack_encoder.c
index f30f574..6b45929 100644
--- a/src/core/transport/chttp2/hpack_encoder.c
+++ b/src/core/lib/transport/chttp2/hpack_encoder.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/transport/chttp2/hpack_encoder.h"
+#include "src/core/lib/transport/chttp2/hpack_encoder.h"
 
 #include <assert.h>
 #include <string.h>
@@ -45,11 +45,11 @@
 #include <grpc/support/log.h>
 #include <grpc/support/useful.h>
 
-#include "src/core/transport/chttp2/bin_encoder.h"
-#include "src/core/transport/chttp2/hpack_table.h"
-#include "src/core/transport/chttp2/timeout_encoding.h"
-#include "src/core/transport/chttp2/varint.h"
-#include "src/core/transport/static_metadata.h"
+#include "src/core/lib/transport/chttp2/bin_encoder.h"
+#include "src/core/lib/transport/chttp2/hpack_table.h"
+#include "src/core/lib/transport/chttp2/timeout_encoding.h"
+#include "src/core/lib/transport/chttp2/varint.h"
+#include "src/core/lib/transport/static_metadata.h"
 
 #define HASH_FRAGMENT_1(x) ((x)&255)
 #define HASH_FRAGMENT_2(x) ((x >> 8) & 255)
diff --git a/src/core/transport/chttp2/hpack_encoder.h b/src/core/lib/transport/chttp2/hpack_encoder.h
similarity index 92%
rename from src/core/transport/chttp2/hpack_encoder.h
rename to src/core/lib/transport/chttp2/hpack_encoder.h
index 90aaf86..de46a8f 100644
--- a/src/core/transport/chttp2/hpack_encoder.h
+++ b/src/core/lib/transport/chttp2/hpack_encoder.h
@@ -31,15 +31,15 @@
  *
  */
 
-#ifndef GRPC_CORE_TRANSPORT_CHTTP2_HPACK_ENCODER_H
-#define GRPC_CORE_TRANSPORT_CHTTP2_HPACK_ENCODER_H
+#ifndef GRPC_CORE_LIB_TRANSPORT_CHTTP2_HPACK_ENCODER_H
+#define GRPC_CORE_LIB_TRANSPORT_CHTTP2_HPACK_ENCODER_H
 
-#include "src/core/transport/chttp2/frame.h"
-#include "src/core/transport/metadata.h"
-#include "src/core/transport/metadata_batch.h"
 #include <grpc/support/port_platform.h>
 #include <grpc/support/slice.h>
 #include <grpc/support/slice_buffer.h>
+#include "src/core/lib/transport/chttp2/frame.h"
+#include "src/core/lib/transport/metadata.h"
+#include "src/core/lib/transport/metadata_batch.h"
 
 #define GRPC_CHTTP2_HPACKC_NUM_FILTERS 256
 #define GRPC_CHTTP2_HPACKC_NUM_VALUES 256
@@ -92,4 +92,4 @@
                                grpc_metadata_batch *metadata, int is_eof,
                                gpr_slice_buffer *outbuf);
 
-#endif /* GRPC_CORE_TRANSPORT_CHTTP2_HPACK_ENCODER_H */
+#endif /* GRPC_CORE_LIB_TRANSPORT_CHTTP2_HPACK_ENCODER_H */
diff --git a/src/core/transport/chttp2/hpack_parser.c b/src/core/lib/transport/chttp2/hpack_parser.c
similarity index 99%
rename from src/core/transport/chttp2/hpack_parser.c
rename to src/core/lib/transport/chttp2/hpack_parser.c
index a63c7db..d41ebab 100644
--- a/src/core/transport/chttp2/hpack_parser.c
+++ b/src/core/lib/transport/chttp2/hpack_parser.c
@@ -31,12 +31,12 @@
  *
  */
 
-#include "src/core/transport/chttp2/hpack_parser.h"
-#include "src/core/transport/chttp2/internal.h"
+#include "src/core/lib/transport/chttp2/hpack_parser.h"
+#include "src/core/lib/transport/chttp2/internal.h"
 
+#include <assert.h>
 #include <stddef.h>
 #include <string.h>
-#include <assert.h>
 
 /* This is here for grpc_is_binary_header
  * TODO(murgatroid99): Remove this
@@ -48,9 +48,9 @@
 #include <grpc/support/port_platform.h>
 #include <grpc/support/useful.h>
 
-#include "src/core/profiling/timers.h"
-#include "src/core/support/string.h"
-#include "src/core/transport/chttp2/bin_encoder.h"
+#include "src/core/lib/profiling/timers.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/transport/chttp2/bin_encoder.h"
 
 typedef enum {
   NOT_BINARY,
diff --git a/src/core/transport/chttp2/hpack_parser.h b/src/core/lib/transport/chttp2/hpack_parser.h
similarity index 91%
rename from src/core/transport/chttp2/hpack_parser.h
rename to src/core/lib/transport/chttp2/hpack_parser.h
index 6a6d136..a534fd5 100644
--- a/src/core/transport/chttp2/hpack_parser.h
+++ b/src/core/lib/transport/chttp2/hpack_parser.h
@@ -31,16 +31,16 @@
  *
  */
 
-#ifndef GRPC_CORE_TRANSPORT_CHTTP2_HPACK_PARSER_H
-#define GRPC_CORE_TRANSPORT_CHTTP2_HPACK_PARSER_H
+#ifndef GRPC_CORE_LIB_TRANSPORT_CHTTP2_HPACK_PARSER_H
+#define GRPC_CORE_LIB_TRANSPORT_CHTTP2_HPACK_PARSER_H
 
 #include <stddef.h>
 
 #include <grpc/support/port_platform.h>
-#include "src/core/iomgr/exec_ctx.h"
-#include "src/core/transport/chttp2/frame.h"
-#include "src/core/transport/chttp2/hpack_table.h"
-#include "src/core/transport/metadata.h"
+#include "src/core/lib/iomgr/exec_ctx.h"
+#include "src/core/lib/transport/chttp2/frame.h"
+#include "src/core/lib/transport/chttp2/hpack_table.h"
+#include "src/core/lib/transport/metadata.h"
 
 typedef struct grpc_chttp2_hpack_parser grpc_chttp2_hpack_parser;
 
@@ -113,4 +113,4 @@
     grpc_chttp2_transport_parsing *transport_parsing,
     grpc_chttp2_stream_parsing *stream_parsing, gpr_slice slice, int is_last);
 
-#endif /* GRPC_CORE_TRANSPORT_CHTTP2_HPACK_PARSER_H */
+#endif /* GRPC_CORE_LIB_TRANSPORT_CHTTP2_HPACK_PARSER_H */
diff --git a/src/core/transport/chttp2/hpack_table.c b/src/core/lib/transport/chttp2/hpack_table.c
similarity index 98%
rename from src/core/transport/chttp2/hpack_table.c
rename to src/core/lib/transport/chttp2/hpack_table.c
index f1ce3b8..f92bc26 100644
--- a/src/core/transport/chttp2/hpack_table.c
+++ b/src/core/lib/transport/chttp2/hpack_table.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/transport/chttp2/hpack_table.h"
+#include "src/core/lib/transport/chttp2/hpack_table.h"
 
 #include <assert.h>
 #include <string.h>
@@ -39,7 +39,7 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 
-#include "src/core/support/murmur_hash.h"
+#include "src/core/lib/support/murmur_hash.h"
 
 static struct {
   const char *key;
diff --git a/src/core/transport/chttp2/hpack_table.h b/src/core/lib/transport/chttp2/hpack_table.h
similarity index 95%
rename from src/core/transport/chttp2/hpack_table.h
rename to src/core/lib/transport/chttp2/hpack_table.h
index 6e1b5e6..2cbc02d 100644
--- a/src/core/transport/chttp2/hpack_table.h
+++ b/src/core/lib/transport/chttp2/hpack_table.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_TRANSPORT_CHTTP2_HPACK_TABLE_H
-#define GRPC_CORE_TRANSPORT_CHTTP2_HPACK_TABLE_H
+#ifndef GRPC_CORE_LIB_TRANSPORT_CHTTP2_HPACK_TABLE_H
+#define GRPC_CORE_LIB_TRANSPORT_CHTTP2_HPACK_TABLE_H
 
-#include "src/core/transport/metadata.h"
 #include <grpc/support/port_platform.h>
 #include <grpc/support/slice.h>
+#include "src/core/lib/transport/metadata.h"
 
 /* HPACK header table */
 
@@ -105,4 +105,4 @@
 grpc_chttp2_hptbl_find_result grpc_chttp2_hptbl_find(
     const grpc_chttp2_hptbl *tbl, grpc_mdelem *md);
 
-#endif /* GRPC_CORE_TRANSPORT_CHTTP2_HPACK_TABLE_H */
+#endif /* GRPC_CORE_LIB_TRANSPORT_CHTTP2_HPACK_TABLE_H */
diff --git a/src/core/transport/chttp2/hpack_tables.txt b/src/core/lib/transport/chttp2/hpack_tables.txt
similarity index 100%
rename from src/core/transport/chttp2/hpack_tables.txt
rename to src/core/lib/transport/chttp2/hpack_tables.txt
diff --git a/src/core/transport/chttp2/http2_errors.h b/src/core/lib/transport/chttp2/http2_errors.h
similarity index 92%
rename from src/core/transport/chttp2/http2_errors.h
rename to src/core/lib/transport/chttp2/http2_errors.h
index 4290df3..0238f9d 100644
--- a/src/core/transport/chttp2/http2_errors.h
+++ b/src/core/lib/transport/chttp2/http2_errors.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_TRANSPORT_CHTTP2_HTTP2_ERRORS_H
-#define GRPC_CORE_TRANSPORT_CHTTP2_HTTP2_ERRORS_H
+#ifndef GRPC_CORE_LIB_TRANSPORT_CHTTP2_HTTP2_ERRORS_H
+#define GRPC_CORE_LIB_TRANSPORT_CHTTP2_HTTP2_ERRORS_H
 
 /* error codes for RST_STREAM from http2 draft 14 section 7 */
 typedef enum {
@@ -53,4 +53,4 @@
   GRPC_CHTTP2__ERROR_DO_NOT_USE = -1
 } grpc_chttp2_error_code;
 
-#endif /* GRPC_CORE_TRANSPORT_CHTTP2_HTTP2_ERRORS_H */
+#endif /* GRPC_CORE_LIB_TRANSPORT_CHTTP2_HTTP2_ERRORS_H */
diff --git a/src/core/lib/transport/chttp2/huffsyms.c b/src/core/lib/transport/chttp2/huffsyms.c
new file mode 100644
index 0000000..27497e6
--- /dev/null
+++ b/src/core/lib/transport/chttp2/huffsyms.c
@@ -0,0 +1,105 @@
+/*
+ *
+ * Copyright 2015-2016, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "src/core/lib/transport/chttp2/huffsyms.h"
+
+/* Constants pulled from the HPACK spec, and converted to C using the vim
+   command:
+   :%s/.*   \([0-9a-f]\+\)  \[ *\([0-9]\+\)\]/{0x\1, \2},/g */
+const grpc_chttp2_huffsym grpc_chttp2_huffsyms[GRPC_CHTTP2_NUM_HUFFSYMS] = {
+    {0x1ff8, 13},     {0x7fffd8, 23},   {0xfffffe2, 28},  {0xfffffe3, 28},
+    {0xfffffe4, 28},  {0xfffffe5, 28},  {0xfffffe6, 28},  {0xfffffe7, 28},
+    {0xfffffe8, 28},  {0xffffea, 24},   {0x3ffffffc, 30}, {0xfffffe9, 28},
+    {0xfffffea, 28},  {0x3ffffffd, 30}, {0xfffffeb, 28},  {0xfffffec, 28},
+    {0xfffffed, 28},  {0xfffffee, 28},  {0xfffffef, 28},  {0xffffff0, 28},
+    {0xffffff1, 28},  {0xffffff2, 28},  {0x3ffffffe, 30}, {0xffffff3, 28},
+    {0xffffff4, 28},  {0xffffff5, 28},  {0xffffff6, 28},  {0xffffff7, 28},
+    {0xffffff8, 28},  {0xffffff9, 28},  {0xffffffa, 28},  {0xffffffb, 28},
+    {0x14, 6},        {0x3f8, 10},      {0x3f9, 10},      {0xffa, 12},
+    {0x1ff9, 13},     {0x15, 6},        {0xf8, 8},        {0x7fa, 11},
+    {0x3fa, 10},      {0x3fb, 10},      {0xf9, 8},        {0x7fb, 11},
+    {0xfa, 8},        {0x16, 6},        {0x17, 6},        {0x18, 6},
+    {0x0, 5},         {0x1, 5},         {0x2, 5},         {0x19, 6},
+    {0x1a, 6},        {0x1b, 6},        {0x1c, 6},        {0x1d, 6},
+    {0x1e, 6},        {0x1f, 6},        {0x5c, 7},        {0xfb, 8},
+    {0x7ffc, 15},     {0x20, 6},        {0xffb, 12},      {0x3fc, 10},
+    {0x1ffa, 13},     {0x21, 6},        {0x5d, 7},        {0x5e, 7},
+    {0x5f, 7},        {0x60, 7},        {0x61, 7},        {0x62, 7},
+    {0x63, 7},        {0x64, 7},        {0x65, 7},        {0x66, 7},
+    {0x67, 7},        {0x68, 7},        {0x69, 7},        {0x6a, 7},
+    {0x6b, 7},        {0x6c, 7},        {0x6d, 7},        {0x6e, 7},
+    {0x6f, 7},        {0x70, 7},        {0x71, 7},        {0x72, 7},
+    {0xfc, 8},        {0x73, 7},        {0xfd, 8},        {0x1ffb, 13},
+    {0x7fff0, 19},    {0x1ffc, 13},     {0x3ffc, 14},     {0x22, 6},
+    {0x7ffd, 15},     {0x3, 5},         {0x23, 6},        {0x4, 5},
+    {0x24, 6},        {0x5, 5},         {0x25, 6},        {0x26, 6},
+    {0x27, 6},        {0x6, 5},         {0x74, 7},        {0x75, 7},
+    {0x28, 6},        {0x29, 6},        {0x2a, 6},        {0x7, 5},
+    {0x2b, 6},        {0x76, 7},        {0x2c, 6},        {0x8, 5},
+    {0x9, 5},         {0x2d, 6},        {0x77, 7},        {0x78, 7},
+    {0x79, 7},        {0x7a, 7},        {0x7b, 7},        {0x7ffe, 15},
+    {0x7fc, 11},      {0x3ffd, 14},     {0x1ffd, 13},     {0xffffffc, 28},
+    {0xfffe6, 20},    {0x3fffd2, 22},   {0xfffe7, 20},    {0xfffe8, 20},
+    {0x3fffd3, 22},   {0x3fffd4, 22},   {0x3fffd5, 22},   {0x7fffd9, 23},
+    {0x3fffd6, 22},   {0x7fffda, 23},   {0x7fffdb, 23},   {0x7fffdc, 23},
+    {0x7fffdd, 23},   {0x7fffde, 23},   {0xffffeb, 24},   {0x7fffdf, 23},
+    {0xffffec, 24},   {0xffffed, 24},   {0x3fffd7, 22},   {0x7fffe0, 23},
+    {0xffffee, 24},   {0x7fffe1, 23},   {0x7fffe2, 23},   {0x7fffe3, 23},
+    {0x7fffe4, 23},   {0x1fffdc, 21},   {0x3fffd8, 22},   {0x7fffe5, 23},
+    {0x3fffd9, 22},   {0x7fffe6, 23},   {0x7fffe7, 23},   {0xffffef, 24},
+    {0x3fffda, 22},   {0x1fffdd, 21},   {0xfffe9, 20},    {0x3fffdb, 22},
+    {0x3fffdc, 22},   {0x7fffe8, 23},   {0x7fffe9, 23},   {0x1fffde, 21},
+    {0x7fffea, 23},   {0x3fffdd, 22},   {0x3fffde, 22},   {0xfffff0, 24},
+    {0x1fffdf, 21},   {0x3fffdf, 22},   {0x7fffeb, 23},   {0x7fffec, 23},
+    {0x1fffe0, 21},   {0x1fffe1, 21},   {0x3fffe0, 22},   {0x1fffe2, 21},
+    {0x7fffed, 23},   {0x3fffe1, 22},   {0x7fffee, 23},   {0x7fffef, 23},
+    {0xfffea, 20},    {0x3fffe2, 22},   {0x3fffe3, 22},   {0x3fffe4, 22},
+    {0x7ffff0, 23},   {0x3fffe5, 22},   {0x3fffe6, 22},   {0x7ffff1, 23},
+    {0x3ffffe0, 26},  {0x3ffffe1, 26},  {0xfffeb, 20},    {0x7fff1, 19},
+    {0x3fffe7, 22},   {0x7ffff2, 23},   {0x3fffe8, 22},   {0x1ffffec, 25},
+    {0x3ffffe2, 26},  {0x3ffffe3, 26},  {0x3ffffe4, 26},  {0x7ffffde, 27},
+    {0x7ffffdf, 27},  {0x3ffffe5, 26},  {0xfffff1, 24},   {0x1ffffed, 25},
+    {0x7fff2, 19},    {0x1fffe3, 21},   {0x3ffffe6, 26},  {0x7ffffe0, 27},
+    {0x7ffffe1, 27},  {0x3ffffe7, 26},  {0x7ffffe2, 27},  {0xfffff2, 24},
+    {0x1fffe4, 21},   {0x1fffe5, 21},   {0x3ffffe8, 26},  {0x3ffffe9, 26},
+    {0xffffffd, 28},  {0x7ffffe3, 27},  {0x7ffffe4, 27},  {0x7ffffe5, 27},
+    {0xfffec, 20},    {0xfffff3, 24},   {0xfffed, 20},    {0x1fffe6, 21},
+    {0x3fffe9, 22},   {0x1fffe7, 21},   {0x1fffe8, 21},   {0x7ffff3, 23},
+    {0x3fffea, 22},   {0x3fffeb, 22},   {0x1ffffee, 25},  {0x1ffffef, 25},
+    {0xfffff4, 24},   {0xfffff5, 24},   {0x3ffffea, 26},  {0x7ffff4, 23},
+    {0x3ffffeb, 26},  {0x7ffffe6, 27},  {0x3ffffec, 26},  {0x3ffffed, 26},
+    {0x7ffffe7, 27},  {0x7ffffe8, 27},  {0x7ffffe9, 27},  {0x7ffffea, 27},
+    {0x7ffffeb, 27},  {0xffffffe, 28},  {0x7ffffec, 27},  {0x7ffffed, 27},
+    {0x7ffffee, 27},  {0x7ffffef, 27},  {0x7fffff0, 27},  {0x3ffffee, 26},
+    {0x3fffffff, 30},
+};
diff --git a/src/core/transport/chttp2/huffsyms.h b/src/core/lib/transport/chttp2/huffsyms.h
similarity index 91%
rename from src/core/transport/chttp2/huffsyms.h
rename to src/core/lib/transport/chttp2/huffsyms.h
index 9c4f09d..1ca77b9 100644
--- a/src/core/transport/chttp2/huffsyms.h
+++ b/src/core/lib/transport/chttp2/huffsyms.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_TRANSPORT_CHTTP2_HUFFSYMS_H
-#define GRPC_CORE_TRANSPORT_CHTTP2_HUFFSYMS_H
+#ifndef GRPC_CORE_LIB_TRANSPORT_CHTTP2_HUFFSYMS_H
+#define GRPC_CORE_LIB_TRANSPORT_CHTTP2_HUFFSYMS_H
 
 /* HPACK static huffman table */
 
@@ -45,4 +45,4 @@
 
 extern const grpc_chttp2_huffsym grpc_chttp2_huffsyms[GRPC_CHTTP2_NUM_HUFFSYMS];
 
-#endif /* GRPC_CORE_TRANSPORT_CHTTP2_HUFFSYMS_H */
+#endif /* GRPC_CORE_LIB_TRANSPORT_CHTTP2_HUFFSYMS_H */
diff --git a/src/core/transport/chttp2/incoming_metadata.c b/src/core/lib/transport/chttp2/incoming_metadata.c
similarity index 95%
rename from src/core/transport/chttp2/incoming_metadata.c
rename to src/core/lib/transport/chttp2/incoming_metadata.c
index 315bc2f..a1a8d37 100644
--- a/src/core/transport/chttp2/incoming_metadata.c
+++ b/src/core/lib/transport/chttp2/incoming_metadata.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,11 +31,11 @@
  *
  */
 
-#include "src/core/transport/chttp2/incoming_metadata.h"
+#include "src/core/lib/transport/chttp2/incoming_metadata.h"
 
 #include <string.h>
 
-#include "src/core/transport/chttp2/internal.h"
+#include "src/core/lib/transport/chttp2/internal.h"
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
diff --git a/src/core/transport/chttp2/incoming_metadata.h b/src/core/lib/transport/chttp2/incoming_metadata.h
similarity index 91%
rename from src/core/transport/chttp2/incoming_metadata.h
rename to src/core/lib/transport/chttp2/incoming_metadata.h
index 52454f3..edfa0ad 100644
--- a/src/core/transport/chttp2/incoming_metadata.h
+++ b/src/core/lib/transport/chttp2/incoming_metadata.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_TRANSPORT_CHTTP2_INCOMING_METADATA_H
-#define GRPC_CORE_TRANSPORT_CHTTP2_INCOMING_METADATA_H
+#ifndef GRPC_CORE_LIB_TRANSPORT_CHTTP2_INCOMING_METADATA_H
+#define GRPC_CORE_LIB_TRANSPORT_CHTTP2_INCOMING_METADATA_H
 
-#include "src/core/transport/transport.h"
+#include "src/core/lib/transport/transport.h"
 
 typedef struct {
   grpc_linked_mdelem *elems;
@@ -57,4 +57,4 @@
 void grpc_chttp2_incoming_metadata_buffer_set_deadline(
     grpc_chttp2_incoming_metadata_buffer *buffer, gpr_timespec deadline);
 
-#endif /* GRPC_CORE_TRANSPORT_CHTTP2_INCOMING_METADATA_H */
+#endif /* GRPC_CORE_LIB_TRANSPORT_CHTTP2_INCOMING_METADATA_H */
diff --git a/src/core/transport/chttp2/internal.h b/src/core/lib/transport/chttp2/internal.h
similarity index 96%
rename from src/core/transport/chttp2/internal.h
rename to src/core/lib/transport/chttp2/internal.h
index 0690cb3..346e404 100644
--- a/src/core/transport/chttp2/internal.h
+++ b/src/core/lib/transport/chttp2/internal.h
@@ -31,26 +31,26 @@
  *
  */
 
-#ifndef GRPC_CORE_TRANSPORT_CHTTP2_INTERNAL_H
-#define GRPC_CORE_TRANSPORT_CHTTP2_INTERNAL_H
+#ifndef GRPC_CORE_LIB_TRANSPORT_CHTTP2_INTERNAL_H
+#define GRPC_CORE_LIB_TRANSPORT_CHTTP2_INTERNAL_H
 
 #include <assert.h>
 #include <stdbool.h>
 
-#include "src/core/iomgr/endpoint.h"
-#include "src/core/transport/chttp2/frame.h"
-#include "src/core/transport/chttp2/frame_data.h"
-#include "src/core/transport/chttp2/frame_goaway.h"
-#include "src/core/transport/chttp2/frame_ping.h"
-#include "src/core/transport/chttp2/frame_rst_stream.h"
-#include "src/core/transport/chttp2/frame_settings.h"
-#include "src/core/transport/chttp2/frame_window_update.h"
-#include "src/core/transport/chttp2/hpack_encoder.h"
-#include "src/core/transport/chttp2/hpack_parser.h"
-#include "src/core/transport/chttp2/incoming_metadata.h"
-#include "src/core/transport/chttp2/stream_map.h"
-#include "src/core/transport/connectivity_state.h"
-#include "src/core/transport/transport_impl.h"
+#include "src/core/lib/iomgr/endpoint.h"
+#include "src/core/lib/transport/chttp2/frame.h"
+#include "src/core/lib/transport/chttp2/frame_data.h"
+#include "src/core/lib/transport/chttp2/frame_goaway.h"
+#include "src/core/lib/transport/chttp2/frame_ping.h"
+#include "src/core/lib/transport/chttp2/frame_rst_stream.h"
+#include "src/core/lib/transport/chttp2/frame_settings.h"
+#include "src/core/lib/transport/chttp2/frame_window_update.h"
+#include "src/core/lib/transport/chttp2/hpack_encoder.h"
+#include "src/core/lib/transport/chttp2/hpack_parser.h"
+#include "src/core/lib/transport/chttp2/incoming_metadata.h"
+#include "src/core/lib/transport/chttp2/stream_map.h"
+#include "src/core/lib/transport/connectivity_state.h"
+#include "src/core/lib/transport/transport_impl.h"
 
 typedef struct grpc_chttp2_transport grpc_chttp2_transport;
 typedef struct grpc_chttp2_stream grpc_chttp2_stream;
@@ -777,4 +777,4 @@
 void grpc_chttp2_become_writable(grpc_chttp2_transport_global *transport_global,
                                  grpc_chttp2_stream_global *stream_global);
 
-#endif /* GRPC_CORE_TRANSPORT_CHTTP2_INTERNAL_H */
+#endif /* GRPC_CORE_LIB_TRANSPORT_CHTTP2_INTERNAL_H */
diff --git a/src/core/transport/chttp2/parsing.c b/src/core/lib/transport/chttp2/parsing.c
similarity index 98%
rename from src/core/transport/chttp2/parsing.c
rename to src/core/lib/transport/chttp2/parsing.c
index 0516f39..9ee52f6 100644
--- a/src/core/transport/chttp2/parsing.c
+++ b/src/core/lib/transport/chttp2/parsing.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/transport/chttp2/internal.h"
+#include "src/core/lib/transport/chttp2/internal.h"
 
 #include <string.h>
 
@@ -39,11 +39,11 @@
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/profiling/timers.h"
-#include "src/core/transport/chttp2/http2_errors.h"
-#include "src/core/transport/chttp2/status_conversion.h"
-#include "src/core/transport/chttp2/timeout_encoding.h"
-#include "src/core/transport/static_metadata.h"
+#include "src/core/lib/profiling/timers.h"
+#include "src/core/lib/transport/chttp2/http2_errors.h"
+#include "src/core/lib/transport/chttp2/status_conversion.h"
+#include "src/core/lib/transport/chttp2/timeout_encoding.h"
+#include "src/core/lib/transport/static_metadata.h"
 
 static int init_frame_parser(grpc_exec_ctx *exec_ctx,
                              grpc_chttp2_transport_parsing *transport_parsing);
diff --git a/src/core/transport/chttp2/status_conversion.c b/src/core/lib/transport/chttp2/status_conversion.c
similarity index 97%
rename from src/core/transport/chttp2/status_conversion.c
rename to src/core/lib/transport/chttp2/status_conversion.c
index bf214b0..73dd63e 100644
--- a/src/core/transport/chttp2/status_conversion.c
+++ b/src/core/lib/transport/chttp2/status_conversion.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/transport/chttp2/status_conversion.h"
+#include "src/core/lib/transport/chttp2/status_conversion.h"
 
 int grpc_chttp2_grpc_status_to_http2_error(grpc_status_code status) {
   switch (status) {
diff --git a/src/core/transport/chttp2/status_conversion.h b/src/core/lib/transport/chttp2/status_conversion.h
similarity index 89%
rename from src/core/transport/chttp2/status_conversion.h
rename to src/core/lib/transport/chttp2/status_conversion.h
index c6e066b..241417d 100644
--- a/src/core/transport/chttp2/status_conversion.h
+++ b/src/core/lib/transport/chttp2/status_conversion.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_TRANSPORT_CHTTP2_STATUS_CONVERSION_H
-#define GRPC_CORE_TRANSPORT_CHTTP2_STATUS_CONVERSION_H
+#ifndef GRPC_CORE_LIB_TRANSPORT_CHTTP2_STATUS_CONVERSION_H
+#define GRPC_CORE_LIB_TRANSPORT_CHTTP2_STATUS_CONVERSION_H
 
 #include <grpc/grpc.h>
-#include "src/core/transport/chttp2/http2_errors.h"
+#include "src/core/lib/transport/chttp2/http2_errors.h"
 
 /* Conversion of grpc status codes to http2 error codes (for RST_STREAM) */
 grpc_chttp2_error_code grpc_chttp2_grpc_status_to_http2_error(
@@ -47,4 +47,4 @@
 grpc_status_code grpc_chttp2_http2_status_to_grpc_status(int status);
 int grpc_chttp2_grpc_status_to_http2_status(grpc_status_code status);
 
-#endif /* GRPC_CORE_TRANSPORT_CHTTP2_STATUS_CONVERSION_H */
+#endif /* GRPC_CORE_LIB_TRANSPORT_CHTTP2_STATUS_CONVERSION_H */
diff --git a/src/core/transport/chttp2/stream_lists.c b/src/core/lib/transport/chttp2/stream_lists.c
similarity index 99%
rename from src/core/transport/chttp2/stream_lists.c
rename to src/core/lib/transport/chttp2/stream_lists.c
index 60fe735..b51a041 100644
--- a/src/core/transport/chttp2/stream_lists.c
+++ b/src/core/lib/transport/chttp2/stream_lists.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/transport/chttp2/internal.h"
+#include "src/core/lib/transport/chttp2/internal.h"
 
 #include <grpc/support/log.h>
 
diff --git a/src/core/transport/chttp2/stream_map.c b/src/core/lib/transport/chttp2/stream_map.c
similarity index 98%
rename from src/core/transport/chttp2/stream_map.c
rename to src/core/lib/transport/chttp2/stream_map.c
index 555a16f..dbbbe78 100644
--- a/src/core/transport/chttp2/stream_map.c
+++ b/src/core/lib/transport/chttp2/stream_map.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/transport/chttp2/stream_map.h"
+#include "src/core/lib/transport/chttp2/stream_map.h"
 
 #include <string.h>
 
diff --git a/src/core/transport/chttp2/stream_map.h b/src/core/lib/transport/chttp2/stream_map.h
similarity index 95%
rename from src/core/transport/chttp2/stream_map.h
rename to src/core/lib/transport/chttp2/stream_map.h
index 957a58a..1c56b18 100644
--- a/src/core/transport/chttp2/stream_map.h
+++ b/src/core/lib/transport/chttp2/stream_map.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_TRANSPORT_CHTTP2_STREAM_MAP_H
-#define GRPC_CORE_TRANSPORT_CHTTP2_STREAM_MAP_H
+#ifndef GRPC_CORE_LIB_TRANSPORT_CHTTP2_STREAM_MAP_H
+#define GRPC_CORE_LIB_TRANSPORT_CHTTP2_STREAM_MAP_H
 
 #include <grpc/support/port_platform.h>
 
@@ -81,4 +81,4 @@
                                                void *value),
                                      void *user_data);
 
-#endif /* GRPC_CORE_TRANSPORT_CHTTP2_STREAM_MAP_H */
+#endif /* GRPC_CORE_LIB_TRANSPORT_CHTTP2_STREAM_MAP_H */
diff --git a/src/core/transport/chttp2/timeout_encoding.c b/src/core/lib/transport/chttp2/timeout_encoding.c
similarity index 97%
rename from src/core/transport/chttp2/timeout_encoding.c
rename to src/core/lib/transport/chttp2/timeout_encoding.c
index a6f7081..0edacaa 100644
--- a/src/core/transport/chttp2/timeout_encoding.c
+++ b/src/core/lib/transport/chttp2/timeout_encoding.c
@@ -31,13 +31,13 @@
  *
  */
 
-#include "src/core/transport/chttp2/timeout_encoding.h"
+#include "src/core/lib/transport/chttp2/timeout_encoding.h"
 
 #include <stdio.h>
 #include <string.h>
 
 #include <grpc/support/port_platform.h>
-#include "src/core/support/string.h"
+#include "src/core/lib/support/string.h"
 
 static int64_t round_up(int64_t x, int64_t divisor) {
   return (x / divisor + (x % divisor != 0)) * divisor;
@@ -150,7 +150,7 @@
     /* spec allows max. 8 digits, but we allow values up to 1,000,000,000 */
     if (x >= (100 * 1000 * 1000)) {
       if (x != (100 * 1000 * 1000) || digit != 0) {
-        *timeout = gpr_inf_future(GPR_CLOCK_REALTIME);
+        *timeout = gpr_inf_future(GPR_TIMESPAN);
         return 1;
       }
     }
diff --git a/src/core/transport/chttp2/timeout_encoding.h b/src/core/lib/transport/chttp2/timeout_encoding.h
similarity index 89%
rename from src/core/transport/chttp2/timeout_encoding.h
rename to src/core/lib/transport/chttp2/timeout_encoding.h
index 81bae8e..731beb5 100644
--- a/src/core/transport/chttp2/timeout_encoding.h
+++ b/src/core/lib/transport/chttp2/timeout_encoding.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_TRANSPORT_CHTTP2_TIMEOUT_ENCODING_H
-#define GRPC_CORE_TRANSPORT_CHTTP2_TIMEOUT_ENCODING_H
+#ifndef GRPC_CORE_LIB_TRANSPORT_CHTTP2_TIMEOUT_ENCODING_H
+#define GRPC_CORE_LIB_TRANSPORT_CHTTP2_TIMEOUT_ENCODING_H
 
-#include "src/core/support/string.h"
 #include <grpc/support/time.h>
+#include "src/core/lib/support/string.h"
 
 #define GRPC_CHTTP2_TIMEOUT_ENCODE_MIN_BUFSIZE (GPR_LTOA_MIN_BUFSIZE + 1)
 
@@ -44,4 +44,4 @@
 void grpc_chttp2_encode_timeout(gpr_timespec timeout, char *buffer);
 int grpc_chttp2_decode_timeout(const char *buffer, gpr_timespec *timeout);
 
-#endif /* GRPC_CORE_TRANSPORT_CHTTP2_TIMEOUT_ENCODING_H */
+#endif /* GRPC_CORE_LIB_TRANSPORT_CHTTP2_TIMEOUT_ENCODING_H */
diff --git a/src/core/transport/chttp2/varint.c b/src/core/lib/transport/chttp2/varint.c
similarity index 96%
rename from src/core/transport/chttp2/varint.c
rename to src/core/lib/transport/chttp2/varint.c
index 1cc235e..6dfef45 100644
--- a/src/core/transport/chttp2/varint.c
+++ b/src/core/lib/transport/chttp2/varint.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/transport/chttp2/varint.h"
+#include "src/core/lib/transport/chttp2/varint.h"
 
 uint32_t grpc_chttp2_hpack_varint_length(uint32_t tail_value) {
   if (tail_value < (1 << 7)) {
diff --git a/src/core/transport/chttp2/varint.h b/src/core/lib/transport/chttp2/varint.h
similarity index 95%
rename from src/core/transport/chttp2/varint.h
rename to src/core/lib/transport/chttp2/varint.h
index 7ab9d22..e4a0ae3 100644
--- a/src/core/transport/chttp2/varint.h
+++ b/src/core/lib/transport/chttp2/varint.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_TRANSPORT_CHTTP2_VARINT_H
-#define GRPC_CORE_TRANSPORT_CHTTP2_VARINT_H
+#ifndef GRPC_CORE_LIB_TRANSPORT_CHTTP2_VARINT_H
+#define GRPC_CORE_LIB_TRANSPORT_CHTTP2_VARINT_H
 
 #include <grpc/support/port_platform.h>
 
@@ -72,4 +72,4 @@
     }                                                                         \
   } while (0)
 
-#endif /* GRPC_CORE_TRANSPORT_CHTTP2_VARINT_H */
+#endif /* GRPC_CORE_LIB_TRANSPORT_CHTTP2_VARINT_H */
diff --git a/src/core/transport/chttp2/writing.c b/src/core/lib/transport/chttp2/writing.c
similarity index 98%
rename from src/core/transport/chttp2/writing.c
rename to src/core/lib/transport/chttp2/writing.c
index 107725c..daea331 100644
--- a/src/core/transport/chttp2/writing.c
+++ b/src/core/lib/transport/chttp2/writing.c
@@ -31,14 +31,14 @@
  *
  */
 
-#include "src/core/transport/chttp2/internal.h"
+#include "src/core/lib/transport/chttp2/internal.h"
 
 #include <limits.h>
 
 #include <grpc/support/log.h>
 
-#include "src/core/profiling/timers.h"
-#include "src/core/transport/chttp2/http2_errors.h"
+#include "src/core/lib/profiling/timers.h"
+#include "src/core/lib/transport/chttp2/http2_errors.h"
 
 static void finalize_outbuf(grpc_exec_ctx *exec_ctx,
                             grpc_chttp2_transport_writing *transport_writing);
diff --git a/src/core/transport/chttp2_transport.c b/src/core/lib/transport/chttp2_transport.c
similarity index 97%
rename from src/core/transport/chttp2_transport.c
rename to src/core/lib/transport/chttp2_transport.c
index b16768d..7fed3d8 100644
--- a/src/core/transport/chttp2_transport.c
+++ b/src/core/lib/transport/chttp2_transport.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/transport/chttp2_transport.h"
+#include "src/core/lib/transport/chttp2_transport.h"
 
 #include <math.h>
 #include <stdio.h>
@@ -43,14 +43,14 @@
 #include <grpc/support/string_util.h>
 #include <grpc/support/useful.h>
 
-#include "src/core/profiling/timers.h"
-#include "src/core/support/string.h"
-#include "src/core/transport/chttp2/http2_errors.h"
-#include "src/core/transport/chttp2/internal.h"
-#include "src/core/transport/chttp2/status_conversion.h"
-#include "src/core/transport/chttp2/timeout_encoding.h"
-#include "src/core/transport/static_metadata.h"
-#include "src/core/transport/transport_impl.h"
+#include "src/core/lib/profiling/timers.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/transport/chttp2/http2_errors.h"
+#include "src/core/lib/transport/chttp2/internal.h"
+#include "src/core/lib/transport/chttp2/status_conversion.h"
+#include "src/core/lib/transport/chttp2/timeout_encoding.h"
+#include "src/core/lib/transport/static_metadata.h"
+#include "src/core/lib/transport/transport_impl.h"
 
 #define DEFAULT_WINDOW 65535
 #define DEFAULT_CONNECTION_WINDOW_TARGET (1024 * 1024)
@@ -1398,8 +1398,8 @@
     gpr_mu_unlock(&t->mu);
     GPR_TIMER_BEGIN("recv_data.parse", 0);
     for (; i < t->read_buffer.count &&
-               grpc_chttp2_perform_read(exec_ctx, transport_parsing,
-                                        t->read_buffer.slices[i]);
+           grpc_chttp2_perform_read(exec_ctx, transport_parsing,
+                                    t->read_buffer.slices[i]);
          i++)
       ;
     GPR_TIMER_END("recv_data.parse", 0);
@@ -1474,9 +1474,10 @@
     grpc_connectivity_state state, const char *reason) {
   GRPC_CHTTP2_IF_TRACING(
       gpr_log(GPR_DEBUG, "set connectivity_state=%d", state));
-  grpc_connectivity_state_set(exec_ctx, &TRANSPORT_FROM_GLOBAL(transport_global)
-                                             ->channel_callback.state_tracker,
-                              state, reason);
+  grpc_connectivity_state_set(
+      exec_ctx,
+      &TRANSPORT_FROM_GLOBAL(transport_global)->channel_callback.state_tracker,
+      state, reason);
 }
 
 /*******************************************************************************
@@ -1756,10 +1757,15 @@
   return gpr_strdup(((grpc_chttp2_transport *)t)->peer_string);
 }
 
-static const grpc_transport_vtable vtable = {
-    sizeof(grpc_chttp2_stream), "chttp2", init_stream, set_pollset,
-    perform_stream_op, perform_transport_op, destroy_stream, destroy_transport,
-    chttp2_get_peer};
+static const grpc_transport_vtable vtable = {sizeof(grpc_chttp2_stream),
+                                             "chttp2",
+                                             init_stream,
+                                             set_pollset,
+                                             perform_stream_op,
+                                             perform_transport_op,
+                                             destroy_stream,
+                                             destroy_transport,
+                                             chttp2_get_peer};
 
 grpc_transport *grpc_create_chttp2_transport(
     grpc_exec_ctx *exec_ctx, const grpc_channel_args *channel_args,
diff --git a/src/core/transport/chttp2_transport.h b/src/core/lib/transport/chttp2_transport.h
similarity index 88%
rename from src/core/transport/chttp2_transport.h
rename to src/core/lib/transport/chttp2_transport.h
index 9a6cf0e..5008cab 100644
--- a/src/core/transport/chttp2_transport.h
+++ b/src/core/lib/transport/chttp2_transport.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_TRANSPORT_CHTTP2_TRANSPORT_H
-#define GRPC_CORE_TRANSPORT_CHTTP2_TRANSPORT_H
+#ifndef GRPC_CORE_LIB_TRANSPORT_CHTTP2_TRANSPORT_H
+#define GRPC_CORE_LIB_TRANSPORT_CHTTP2_TRANSPORT_H
 
-#include "src/core/iomgr/endpoint.h"
-#include "src/core/transport/transport.h"
+#include "src/core/lib/iomgr/endpoint.h"
+#include "src/core/lib/transport/transport.h"
 
 extern int grpc_http_trace;
 extern int grpc_flowctl_trace;
@@ -48,4 +48,4 @@
                                          grpc_transport *transport,
                                          gpr_slice *slices, size_t nslices);
 
-#endif /* GRPC_CORE_TRANSPORT_CHTTP2_TRANSPORT_H */
+#endif /* GRPC_CORE_LIB_TRANSPORT_CHTTP2_TRANSPORT_H */
diff --git a/src/core/transport/connectivity_state.c b/src/core/lib/transport/connectivity_state.c
similarity index 98%
rename from src/core/transport/connectivity_state.c
rename to src/core/lib/transport/connectivity_state.c
index 87765b9..123eab8 100644
--- a/src/core/transport/connectivity_state.c
+++ b/src/core/lib/transport/connectivity_state.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/transport/connectivity_state.h"
+#include "src/core/lib/transport/connectivity_state.h"
 
 #include <string.h>
 
diff --git a/src/core/transport/connectivity_state.h b/src/core/lib/transport/connectivity_state.h
similarity index 94%
rename from src/core/transport/connectivity_state.h
rename to src/core/lib/transport/connectivity_state.h
index b4a3ce9..6f92132 100644
--- a/src/core/transport/connectivity_state.h
+++ b/src/core/lib/transport/connectivity_state.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_TRANSPORT_CONNECTIVITY_STATE_H
-#define GRPC_CORE_TRANSPORT_CONNECTIVITY_STATE_H
+#ifndef GRPC_CORE_LIB_TRANSPORT_CONNECTIVITY_STATE_H
+#define GRPC_CORE_LIB_TRANSPORT_CONNECTIVITY_STATE_H
 
 #include <grpc/grpc.h>
-#include "src/core/iomgr/exec_ctx.h"
+#include "src/core/lib/iomgr/exec_ctx.h"
 
 typedef struct grpc_connectivity_state_watcher {
   /** we keep watchers in a linked list */
@@ -82,4 +82,4 @@
     grpc_exec_ctx *exec_ctx, grpc_connectivity_state_tracker *tracker,
     grpc_connectivity_state *current, grpc_closure *notify);
 
-#endif /* GRPC_CORE_TRANSPORT_CONNECTIVITY_STATE_H */
+#endif /* GRPC_CORE_LIB_TRANSPORT_CONNECTIVITY_STATE_H */
diff --git a/src/core/transport/metadata.c b/src/core/lib/transport/metadata.c
similarity index 98%
rename from src/core/transport/metadata.c
rename to src/core/lib/transport/metadata.c
index 807ae07..7605f09 100644
--- a/src/core/transport/metadata.c
+++ b/src/core/lib/transport/metadata.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/transport/metadata.h"
+#include "src/core/lib/transport/metadata.h"
 
 #include <assert.h>
 #include <stddef.h>
@@ -44,12 +44,12 @@
 #include <grpc/support/string_util.h>
 #include <grpc/support/time.h>
 
-#include "src/core/profiling/timers.h"
-#include "src/core/support/murmur_hash.h"
-#include "src/core/support/string.h"
-#include "src/core/transport/chttp2/bin_encoder.h"
-#include "src/core/transport/static_metadata.h"
-#include "src/core/iomgr/iomgr_internal.h"
+#include "src/core/lib/iomgr/iomgr_internal.h"
+#include "src/core/lib/profiling/timers.h"
+#include "src/core/lib/support/murmur_hash.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/transport/chttp2/bin_encoder.h"
+#include "src/core/lib/transport/static_metadata.h"
 
 /* There are two kinds of mdelem and mdstr instances.
  * Static instances are declared in static_metadata.{h,c} and
diff --git a/src/core/transport/metadata.h b/src/core/lib/transport/metadata.h
similarity index 97%
rename from src/core/transport/metadata.h
rename to src/core/lib/transport/metadata.h
index 5ab3978..d72ec9a 100644
--- a/src/core/transport/metadata.h
+++ b/src/core/lib/transport/metadata.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_TRANSPORT_METADATA_H
-#define GRPC_CORE_TRANSPORT_METADATA_H
+#ifndef GRPC_CORE_LIB_TRANSPORT_METADATA_H
+#define GRPC_CORE_LIB_TRANSPORT_METADATA_H
 
 #include <grpc/support/slice.h>
 #include <grpc/support/useful.h>
@@ -153,4 +153,4 @@
 void grpc_mdctx_global_init(void);
 void grpc_mdctx_global_shutdown(void);
 
-#endif /* GRPC_CORE_TRANSPORT_METADATA_H */
+#endif /* GRPC_CORE_LIB_TRANSPORT_METADATA_H */
diff --git a/src/core/transport/metadata_batch.c b/src/core/lib/transport/metadata_batch.c
similarity index 97%
rename from src/core/transport/metadata_batch.c
rename to src/core/lib/transport/metadata_batch.c
index 1266862..bb79b8f 100644
--- a/src/core/transport/metadata_batch.c
+++ b/src/core/lib/transport/metadata_batch.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,14 +31,14 @@
  *
  */
 
-#include "src/core/transport/metadata_batch.h"
+#include "src/core/lib/transport/metadata_batch.h"
 
 #include <string.h>
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 
-#include "src/core/profiling/timers.h"
+#include "src/core/lib/profiling/timers.h"
 
 static void assert_valid_list(grpc_mdelem_list *list) {
 #ifndef NDEBUG
diff --git a/src/core/transport/metadata_batch.h b/src/core/lib/transport/metadata_batch.h
similarity index 96%
rename from src/core/transport/metadata_batch.h
rename to src/core/lib/transport/metadata_batch.h
index 9337b28..f1d4726 100644
--- a/src/core/transport/metadata_batch.h
+++ b/src/core/lib/transport/metadata_batch.h
@@ -31,14 +31,14 @@
  *
  */
 
-#ifndef GRPC_CORE_TRANSPORT_METADATA_BATCH_H
-#define GRPC_CORE_TRANSPORT_METADATA_BATCH_H
+#ifndef GRPC_CORE_LIB_TRANSPORT_METADATA_BATCH_H
+#define GRPC_CORE_LIB_TRANSPORT_METADATA_BATCH_H
 
 #include <grpc/grpc.h>
 #include <grpc/support/port_platform.h>
 #include <grpc/support/slice.h>
 #include <grpc/support/time.h>
-#include "src/core/transport/metadata.h"
+#include "src/core/lib/transport/metadata.h"
 
 typedef struct grpc_linked_mdelem {
   grpc_mdelem *md;
@@ -122,4 +122,4 @@
   } while (0)
 #endif
 
-#endif /* GRPC_CORE_TRANSPORT_METADATA_BATCH_H */
+#endif /* GRPC_CORE_LIB_TRANSPORT_METADATA_BATCH_H */
diff --git a/src/core/transport/static_metadata.c b/src/core/lib/transport/static_metadata.c
similarity index 65%
rename from src/core/transport/static_metadata.c
rename to src/core/lib/transport/static_metadata.c
index eeedae0..eda277b 100644
--- a/src/core/transport/static_metadata.c
+++ b/src/core/lib/transport/static_metadata.c
@@ -43,14 +43,14 @@
  * explanation of what's going on.
  */
 
-#include "src/core/transport/static_metadata.h"
+#include "src/core/lib/transport/static_metadata.h"
 
 grpc_mdstr grpc_static_mdstr_table[GRPC_STATIC_MDSTR_COUNT];
 
 grpc_mdelem grpc_static_mdelem_table[GRPC_STATIC_MDELEM_COUNT];
 uintptr_t grpc_static_mdelem_user_data[GRPC_STATIC_MDELEM_COUNT] = {
     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-    0, 0, 0, 0, 0, 0, 3, 7, 5, 2, 4, 8, 6, 0, 0, 0, 0, 0, 0, 0,
+    0, 0, 0, 0, 0, 0, 4, 8, 6, 2, 4, 8, 6, 0, 0, 0, 0, 0, 0, 0,
     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
     0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};
 
@@ -66,24 +66,95 @@
      82, 83, 84, 35, 85, 35, 86, 35, 87, 35, 88, 35};
 
 const char *const grpc_static_metadata_strings[GRPC_STATIC_MDSTR_COUNT] = {
-    "0", "1", "2", "200", "204", "206", "304", "400", "404", "500", "accept",
-    "accept-charset", "accept-encoding", "accept-language", "accept-ranges",
-    "access-control-allow-origin", "age", "allow", "application/grpc",
-    ":authority", "authorization", "cache-control", "census-bin",
-    "census-binary-bin", "content-disposition", "content-encoding",
-    "content-language", "content-length", "content-location", "content-range",
-    "content-type", "cookie", "date", "deflate", "deflate,gzip", "", "etag",
-    "expect", "expires", "from", "GET", "grpc", "grpc-accept-encoding",
-    "grpc-encoding", "grpc-internal-encoding-request", "grpc-message",
-    "grpc-status", "grpc-timeout", "gzip", "gzip, deflate", "host", "http",
-    "https", "identity", "identity,deflate", "identity,deflate,gzip",
-    "identity,gzip", "if-match", "if-modified-since", "if-none-match",
-    "if-range", "if-unmodified-since", "last-modified", "link", "location",
-    "max-forwards", ":method", ":path", "POST", "proxy-authenticate",
-    "proxy-authorization", "range", "referer", "refresh", "retry-after",
-    ":scheme", "server", "set-cookie", "/", "/index.html", ":status",
-    "strict-transport-security", "te", "trailers", "transfer-encoding",
-    "user-agent", "vary", "via", "www-authenticate"};
+    "0",
+    "1",
+    "2",
+    "200",
+    "204",
+    "206",
+    "304",
+    "400",
+    "404",
+    "500",
+    "accept",
+    "accept-charset",
+    "accept-encoding",
+    "accept-language",
+    "accept-ranges",
+    "access-control-allow-origin",
+    "age",
+    "allow",
+    "application/grpc",
+    ":authority",
+    "authorization",
+    "cache-control",
+    "census-bin",
+    "census-binary-bin",
+    "content-disposition",
+    "content-encoding",
+    "content-language",
+    "content-length",
+    "content-location",
+    "content-range",
+    "content-type",
+    "cookie",
+    "date",
+    "deflate",
+    "deflate,gzip",
+    "",
+    "etag",
+    "expect",
+    "expires",
+    "from",
+    "GET",
+    "grpc",
+    "grpc-accept-encoding",
+    "grpc-encoding",
+    "grpc-internal-encoding-request",
+    "grpc-message",
+    "grpc-status",
+    "grpc-timeout",
+    "gzip",
+    "gzip, deflate",
+    "host",
+    "http",
+    "https",
+    "identity",
+    "identity,deflate",
+    "identity,deflate,gzip",
+    "identity,gzip",
+    "if-match",
+    "if-modified-since",
+    "if-none-match",
+    "if-range",
+    "if-unmodified-since",
+    "last-modified",
+    "link",
+    "location",
+    "max-forwards",
+    ":method",
+    ":path",
+    "POST",
+    "proxy-authenticate",
+    "proxy-authorization",
+    "range",
+    "referer",
+    "refresh",
+    "retry-after",
+    ":scheme",
+    "server",
+    "set-cookie",
+    "/",
+    "/index.html",
+    ":status",
+    "strict-transport-security",
+    "te",
+    "trailers",
+    "transfer-encoding",
+    "user-agent",
+    "vary",
+    "via",
+    "www-authenticate"};
 
 const uint8_t grpc_static_accept_encoding_metadata[8] = {0,  29, 26, 30,
                                                          28, 32, 27, 31};
diff --git a/src/core/transport/static_metadata.h b/src/core/lib/transport/static_metadata.h
similarity index 98%
rename from src/core/transport/static_metadata.h
rename to src/core/lib/transport/static_metadata.h
index 85442f8..aff136a 100644
--- a/src/core/transport/static_metadata.h
+++ b/src/core/lib/transport/static_metadata.h
@@ -43,10 +43,10 @@
  * explanation of what's going on.
  */
 
-#ifndef GRPC_CORE_TRANSPORT_STATIC_METADATA_H
-#define GRPC_CORE_TRANSPORT_STATIC_METADATA_H
+#ifndef GRPC_CORE_LIB_TRANSPORT_STATIC_METADATA_H
+#define GRPC_CORE_LIB_TRANSPORT_STATIC_METADATA_H
 
-#include "src/core/transport/metadata.h"
+#include "src/core/lib/transport/metadata.h"
 
 #define GRPC_STATIC_MDSTR_COUNT 89
 extern grpc_mdstr grpc_static_mdstr_table[GRPC_STATIC_MDSTR_COUNT];
@@ -405,4 +405,4 @@
 extern const uint8_t grpc_static_accept_encoding_metadata[8];
 #define GRPC_MDELEM_ACCEPT_ENCODING_FOR_ALGORITHMS(algs) \
   (&grpc_static_mdelem_table[grpc_static_accept_encoding_metadata[(algs)]])
-#endif /* GRPC_CORE_TRANSPORT_STATIC_METADATA_H */
+#endif /* GRPC_CORE_LIB_TRANSPORT_STATIC_METADATA_H */
diff --git a/src/core/transport/transport.c b/src/core/lib/transport/transport.c
similarity index 98%
rename from src/core/transport/transport.c
rename to src/core/lib/transport/transport.c
index 3b555fa..18256aa 100644
--- a/src/core/transport/transport.c
+++ b/src/core/lib/transport/transport.c
@@ -31,11 +31,11 @@
  *
  */
 
-#include "src/core/transport/transport.h"
+#include "src/core/lib/transport/transport.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/atm.h>
 #include <grpc/support/log.h>
-#include "src/core/transport/transport_impl.h"
+#include "src/core/lib/transport/transport_impl.h"
 
 #ifdef GRPC_STREAM_REFCOUNT_DEBUG
 void grpc_stream_ref(grpc_stream_refcount *refcount, const char *reason) {
diff --git a/src/core/transport/transport.h b/src/core/lib/transport/transport.h
similarity index 96%
rename from src/core/transport/transport.h
rename to src/core/lib/transport/transport.h
index 0f068dc..e98cfe9 100644
--- a/src/core/transport/transport.h
+++ b/src/core/lib/transport/transport.h
@@ -31,16 +31,16 @@
  *
  */
 
-#ifndef GRPC_CORE_TRANSPORT_TRANSPORT_H
-#define GRPC_CORE_TRANSPORT_TRANSPORT_H
+#ifndef GRPC_CORE_LIB_TRANSPORT_TRANSPORT_H
+#define GRPC_CORE_LIB_TRANSPORT_TRANSPORT_H
 
 #include <stddef.h>
 
-#include "src/core/iomgr/pollset.h"
-#include "src/core/iomgr/pollset_set.h"
-#include "src/core/transport/metadata_batch.h"
-#include "src/core/transport/byte_stream.h"
-#include "src/core/channel/context.h"
+#include "src/core/lib/channel/context.h"
+#include "src/core/lib/iomgr/pollset.h"
+#include "src/core/lib/iomgr/pollset_set.h"
+#include "src/core/lib/transport/byte_stream.h"
+#include "src/core/lib/transport/metadata_batch.h"
 
 /* forward declarations */
 typedef struct grpc_transport grpc_transport;
@@ -239,4 +239,4 @@
 char *grpc_transport_get_peer(grpc_exec_ctx *exec_ctx,
                               grpc_transport *transport);
 
-#endif /* GRPC_CORE_TRANSPORT_TRANSPORT_H */
+#endif /* GRPC_CORE_LIB_TRANSPORT_TRANSPORT_H */
diff --git a/src/core/transport/transport_impl.h b/src/core/lib/transport/transport_impl.h
similarity index 94%
rename from src/core/transport/transport_impl.h
rename to src/core/lib/transport/transport_impl.h
index d9ecc4d..92fa5d5 100644
--- a/src/core/transport/transport_impl.h
+++ b/src/core/lib/transport/transport_impl.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_TRANSPORT_TRANSPORT_IMPL_H
-#define GRPC_CORE_TRANSPORT_TRANSPORT_IMPL_H
+#ifndef GRPC_CORE_LIB_TRANSPORT_TRANSPORT_IMPL_H
+#define GRPC_CORE_LIB_TRANSPORT_TRANSPORT_IMPL_H
 
-#include "src/core/transport/transport.h"
+#include "src/core/lib/transport/transport.h"
 
 typedef struct grpc_transport_vtable {
   /* Memory required for a single stream element - this is allocated by upper
@@ -78,4 +78,4 @@
   const grpc_transport_vtable *vtable;
 };
 
-#endif /* GRPC_CORE_TRANSPORT_TRANSPORT_IMPL_H */
+#endif /* GRPC_CORE_LIB_TRANSPORT_TRANSPORT_IMPL_H */
diff --git a/src/core/transport/transport_op_string.c b/src/core/lib/transport/transport_op_string.c
similarity index 97%
rename from src/core/transport/transport_op_string.c
rename to src/core/lib/transport/transport_op_string.c
index 98b51af..1fa8fa5 100644
--- a/src/core/transport/transport_op_string.c
+++ b/src/core/lib/transport/transport_op_string.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,16 +31,16 @@
  *
  */
 
-#include "src/core/channel/channel_stack.h"
+#include "src/core/lib/channel/channel_stack.h"
 
 #include <stdarg.h>
 #include <stdio.h>
 #include <string.h>
 
-#include "src/core/support/string.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/string_util.h>
 #include <grpc/support/useful.h>
+#include "src/core/lib/support/string.h"
 
 /* These routines are here to facilitate debugging - they produce string
    representations of various transport data structures */
diff --git a/src/core/tsi/fake_transport_security.c b/src/core/lib/tsi/fake_transport_security.c
similarity index 98%
rename from src/core/tsi/fake_transport_security.c
rename to src/core/lib/tsi/fake_transport_security.c
index 72ac32a..4b812f4 100644
--- a/src/core/tsi/fake_transport_security.c
+++ b/src/core/lib/tsi/fake_transport_security.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/tsi/fake_transport_security.h"
+#include "src/core/lib/tsi/fake_transport_security.h"
 
 #include <stdlib.h>
 #include <string.h>
@@ -39,7 +39,7 @@
 #include <grpc/support/log.h>
 #include <grpc/support/port_platform.h>
 #include <grpc/support/useful.h>
-#include "src/core/tsi/transport_security.h"
+#include "src/core/lib/tsi/transport_security.h"
 
 /* --- Constants. ---*/
 #define TSI_FAKE_FRAME_HEADER_SIZE 4
@@ -493,8 +493,10 @@
 
 static const tsi_handshaker_vtable handshaker_vtable = {
     fake_handshaker_get_bytes_to_send_to_peer,
-    fake_handshaker_process_bytes_from_peer, fake_handshaker_get_result,
-    fake_handshaker_extract_peer, fake_handshaker_create_frame_protector,
+    fake_handshaker_process_bytes_from_peer,
+    fake_handshaker_get_result,
+    fake_handshaker_extract_peer,
+    fake_handshaker_create_frame_protector,
     fake_handshaker_destroy,
 };
 
diff --git a/src/core/tsi/fake_transport_security.h b/src/core/lib/tsi/fake_transport_security.h
similarity index 90%
rename from src/core/tsi/fake_transport_security.h
rename to src/core/lib/tsi/fake_transport_security.h
index 6b8e596..b887dfc 100644
--- a/src/core/tsi/fake_transport_security.h
+++ b/src/core/lib/tsi/fake_transport_security.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_TSI_FAKE_TRANSPORT_SECURITY_H
-#define GRPC_CORE_TSI_FAKE_TRANSPORT_SECURITY_H
+#ifndef GRPC_CORE_LIB_TSI_FAKE_TRANSPORT_SECURITY_H
+#define GRPC_CORE_LIB_TSI_FAKE_TRANSPORT_SECURITY_H
 
-#include "src/core/tsi/transport_security_interface.h"
+#include "src/core/lib/tsi/transport_security_interface.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -58,4 +58,4 @@
 }
 #endif
 
-#endif /* GRPC_CORE_TSI_FAKE_TRANSPORT_SECURITY_H */
+#endif /* GRPC_CORE_LIB_TSI_FAKE_TRANSPORT_SECURITY_H */
diff --git a/src/core/tsi/ssl_transport_security.c b/src/core/lib/tsi/ssl_transport_security.c
similarity index 99%
rename from src/core/tsi/ssl_transport_security.c
rename to src/core/lib/tsi/ssl_transport_security.c
index 42d25ca..d03201e 100644
--- a/src/core/tsi/ssl_transport_security.c
+++ b/src/core/lib/tsi/ssl_transport_security.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/tsi/ssl_transport_security.h"
+#include "src/core/lib/tsi/ssl_transport_security.h"
 
 #include <grpc/support/port_platform.h>
 
@@ -57,8 +57,8 @@
 #include <openssl/x509.h>
 #include <openssl/x509v3.h>
 
-#include "src/core/tsi/ssl_types.h"
-#include "src/core/tsi/transport_security.h"
+#include "src/core/lib/tsi/ssl_types.h"
+#include "src/core/lib/tsi/transport_security.h"
 
 /* --- Constants. ---*/
 
@@ -1039,8 +1039,10 @@
 
 static const tsi_handshaker_vtable handshaker_vtable = {
     ssl_handshaker_get_bytes_to_send_to_peer,
-    ssl_handshaker_process_bytes_from_peer, ssl_handshaker_get_result,
-    ssl_handshaker_extract_peer, ssl_handshaker_create_frame_protector,
+    ssl_handshaker_process_bytes_from_peer,
+    ssl_handshaker_get_result,
+    ssl_handshaker_extract_peer,
+    ssl_handshaker_create_frame_protector,
     ssl_handshaker_destroy,
 };
 
diff --git a/src/core/tsi/ssl_transport_security.h b/src/core/lib/tsi/ssl_transport_security.h
similarity index 97%
rename from src/core/tsi/ssl_transport_security.h
rename to src/core/lib/tsi/ssl_transport_security.h
index 612f5c6..c9b9e8f 100644
--- a/src/core/tsi/ssl_transport_security.h
+++ b/src/core/lib/tsi/ssl_transport_security.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_TSI_SSL_TRANSPORT_SECURITY_H
-#define GRPC_CORE_TSI_SSL_TRANSPORT_SECURITY_H
+#ifndef GRPC_CORE_LIB_TSI_SSL_TRANSPORT_SECURITY_H
+#define GRPC_CORE_LIB_TSI_SSL_TRANSPORT_SECURITY_H
 
-#include "src/core/tsi/transport_security_interface.h"
+#include "src/core/lib/tsi/transport_security_interface.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -171,4 +171,4 @@
 }
 #endif
 
-#endif /* GRPC_CORE_TSI_SSL_TRANSPORT_SECURITY_H */
+#endif /* GRPC_CORE_LIB_TSI_SSL_TRANSPORT_SECURITY_H */
diff --git a/src/core/tsi/ssl_types.h b/src/core/lib/tsi/ssl_types.h
similarity index 94%
rename from src/core/tsi/ssl_types.h
rename to src/core/lib/tsi/ssl_types.h
index 6ea85fe..c6e68c0 100644
--- a/src/core/tsi/ssl_types.h
+++ b/src/core/lib/tsi/ssl_types.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_TSI_SSL_TYPES_H
-#define GRPC_CORE_TSI_SSL_TYPES_H
+#ifndef GRPC_CORE_LIB_TSI_SSL_TYPES_H
+#define GRPC_CORE_LIB_TSI_SSL_TYPES_H
 
 /* A collection of macros to cast between various integer types that are
  * used differently between BoringSSL and OpenSSL:
@@ -52,4 +52,4 @@
 #define TSI_SIZE_AS_SIZE(x) ((int)(x))
 #endif
 
-#endif /* GRPC_CORE_TSI_SSL_TYPES_H */
+#endif /* GRPC_CORE_LIB_TSI_SSL_TYPES_H */
diff --git a/src/core/tsi/test_creds/README b/src/core/lib/tsi/test_creds/README
similarity index 100%
rename from src/core/tsi/test_creds/README
rename to src/core/lib/tsi/test_creds/README
diff --git a/src/core/tsi/test_creds/badclient.key b/src/core/lib/tsi/test_creds/badclient.key
similarity index 100%
rename from src/core/tsi/test_creds/badclient.key
rename to src/core/lib/tsi/test_creds/badclient.key
diff --git a/src/core/tsi/test_creds/badclient.pem b/src/core/lib/tsi/test_creds/badclient.pem
similarity index 100%
rename from src/core/tsi/test_creds/badclient.pem
rename to src/core/lib/tsi/test_creds/badclient.pem
diff --git a/src/core/tsi/test_creds/badserver.key b/src/core/lib/tsi/test_creds/badserver.key
similarity index 100%
rename from src/core/tsi/test_creds/badserver.key
rename to src/core/lib/tsi/test_creds/badserver.key
diff --git a/src/core/tsi/test_creds/badserver.pem b/src/core/lib/tsi/test_creds/badserver.pem
similarity index 100%
rename from src/core/tsi/test_creds/badserver.pem
rename to src/core/lib/tsi/test_creds/badserver.pem
diff --git a/src/core/tsi/test_creds/ca-openssl.cnf b/src/core/lib/tsi/test_creds/ca-openssl.cnf
similarity index 100%
rename from src/core/tsi/test_creds/ca-openssl.cnf
rename to src/core/lib/tsi/test_creds/ca-openssl.cnf
diff --git a/src/core/tsi/test_creds/ca.key b/src/core/lib/tsi/test_creds/ca.key
similarity index 100%
rename from src/core/tsi/test_creds/ca.key
rename to src/core/lib/tsi/test_creds/ca.key
diff --git a/src/core/tsi/test_creds/ca.pem b/src/core/lib/tsi/test_creds/ca.pem
similarity index 100%
rename from src/core/tsi/test_creds/ca.pem
rename to src/core/lib/tsi/test_creds/ca.pem
diff --git a/src/core/tsi/test_creds/client.key b/src/core/lib/tsi/test_creds/client.key
similarity index 100%
rename from src/core/tsi/test_creds/client.key
rename to src/core/lib/tsi/test_creds/client.key
diff --git a/src/core/tsi/test_creds/client.pem b/src/core/lib/tsi/test_creds/client.pem
similarity index 100%
rename from src/core/tsi/test_creds/client.pem
rename to src/core/lib/tsi/test_creds/client.pem
diff --git a/src/core/tsi/test_creds/server0.key b/src/core/lib/tsi/test_creds/server0.key
similarity index 100%
rename from src/core/tsi/test_creds/server0.key
rename to src/core/lib/tsi/test_creds/server0.key
diff --git a/src/core/tsi/test_creds/server0.pem b/src/core/lib/tsi/test_creds/server0.pem
similarity index 100%
rename from src/core/tsi/test_creds/server0.pem
rename to src/core/lib/tsi/test_creds/server0.pem
diff --git a/src/core/tsi/test_creds/server1-openssl.cnf b/src/core/lib/tsi/test_creds/server1-openssl.cnf
similarity index 100%
rename from src/core/tsi/test_creds/server1-openssl.cnf
rename to src/core/lib/tsi/test_creds/server1-openssl.cnf
diff --git a/src/core/tsi/test_creds/server1.key b/src/core/lib/tsi/test_creds/server1.key
similarity index 100%
rename from src/core/tsi/test_creds/server1.key
rename to src/core/lib/tsi/test_creds/server1.key
diff --git a/src/core/tsi/test_creds/server1.pem b/src/core/lib/tsi/test_creds/server1.pem
similarity index 100%
rename from src/core/tsi/test_creds/server1.pem
rename to src/core/lib/tsi/test_creds/server1.pem
diff --git a/src/core/tsi/transport_security.c b/src/core/lib/tsi/transport_security.c
similarity index 98%
rename from src/core/tsi/transport_security.c
rename to src/core/lib/tsi/transport_security.c
index db219a5..a2c0d46 100644
--- a/src/core/tsi/transport_security.c
+++ b/src/core/lib/tsi/transport_security.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/tsi/transport_security.h"
+#include "src/core/lib/tsi/transport_security.h"
 
 #include <stdlib.h>
 #include <string.h>
diff --git a/src/core/tsi/transport_security.h b/src/core/lib/tsi/transport_security.h
similarity index 95%
rename from src/core/tsi/transport_security.h
rename to src/core/lib/tsi/transport_security.h
index ecc0371..349dd0a 100644
--- a/src/core/tsi/transport_security.h
+++ b/src/core/lib/tsi/transport_security.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_TSI_TRANSPORT_SECURITY_H
-#define GRPC_CORE_TSI_TRANSPORT_SECURITY_H
+#ifndef GRPC_CORE_LIB_TSI_TRANSPORT_SECURITY_H
+#define GRPC_CORE_LIB_TSI_TRANSPORT_SECURITY_H
 
-#include "src/core/tsi/transport_security_interface.h"
+#include "src/core/lib/tsi/transport_security_interface.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -108,4 +108,4 @@
 }
 #endif
 
-#endif /* GRPC_CORE_TSI_TRANSPORT_SECURITY_H */
+#endif /* GRPC_CORE_LIB_TSI_TRANSPORT_SECURITY_H */
diff --git a/src/core/tsi/transport_security_interface.h b/src/core/lib/tsi/transport_security_interface.h
similarity index 98%
rename from src/core/tsi/transport_security_interface.h
rename to src/core/lib/tsi/transport_security_interface.h
index 0850180..f88f151 100644
--- a/src/core/tsi/transport_security_interface.h
+++ b/src/core/lib/tsi/transport_security_interface.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_TSI_TRANSPORT_SECURITY_INTERFACE_H
-#define GRPC_CORE_TSI_TRANSPORT_SECURITY_INTERFACE_H
+#ifndef GRPC_CORE_LIB_TSI_TRANSPORT_SECURITY_INTERFACE_H
+#define GRPC_CORE_LIB_TSI_TRANSPORT_SECURITY_INTERFACE_H
 
 #include <stdint.h>
 #include <stdlib.h>
@@ -341,4 +341,4 @@
 }
 #endif
 
-#endif /* GRPC_CORE_TSI_TRANSPORT_SECURITY_INTERFACE_H */
+#endif /* GRPC_CORE_LIB_TSI_TRANSPORT_SECURITY_INTERFACE_H */
diff --git a/src/core/transport/chttp2/huffsyms.c b/src/core/transport/chttp2/huffsyms.c
deleted file mode 100644
index 7b138e9..0000000
--- a/src/core/transport/chttp2/huffsyms.c
+++ /dev/null
@@ -1,297 +0,0 @@
-/*
- *
- * Copyright 2015, Google Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#include "src/core/transport/chttp2/huffsyms.h"
-
-/* Constants pulled from the HPACK spec, and converted to C using the vim
-   command:
-   :%s/.*   \([0-9a-f]\+\)  \[ *\([0-9]\+\)\]/{0x\1, \2},/g */
-const grpc_chttp2_huffsym grpc_chttp2_huffsyms[GRPC_CHTTP2_NUM_HUFFSYMS] = {
-    {0x1ff8, 13},
-    {0x7fffd8, 23},
-    {0xfffffe2, 28},
-    {0xfffffe3, 28},
-    {0xfffffe4, 28},
-    {0xfffffe5, 28},
-    {0xfffffe6, 28},
-    {0xfffffe7, 28},
-    {0xfffffe8, 28},
-    {0xffffea, 24},
-    {0x3ffffffc, 30},
-    {0xfffffe9, 28},
-    {0xfffffea, 28},
-    {0x3ffffffd, 30},
-    {0xfffffeb, 28},
-    {0xfffffec, 28},
-    {0xfffffed, 28},
-    {0xfffffee, 28},
-    {0xfffffef, 28},
-    {0xffffff0, 28},
-    {0xffffff1, 28},
-    {0xffffff2, 28},
-    {0x3ffffffe, 30},
-    {0xffffff3, 28},
-    {0xffffff4, 28},
-    {0xffffff5, 28},
-    {0xffffff6, 28},
-    {0xffffff7, 28},
-    {0xffffff8, 28},
-    {0xffffff9, 28},
-    {0xffffffa, 28},
-    {0xffffffb, 28},
-    {0x14, 6},
-    {0x3f8, 10},
-    {0x3f9, 10},
-    {0xffa, 12},
-    {0x1ff9, 13},
-    {0x15, 6},
-    {0xf8, 8},
-    {0x7fa, 11},
-    {0x3fa, 10},
-    {0x3fb, 10},
-    {0xf9, 8},
-    {0x7fb, 11},
-    {0xfa, 8},
-    {0x16, 6},
-    {0x17, 6},
-    {0x18, 6},
-    {0x0, 5},
-    {0x1, 5},
-    {0x2, 5},
-    {0x19, 6},
-    {0x1a, 6},
-    {0x1b, 6},
-    {0x1c, 6},
-    {0x1d, 6},
-    {0x1e, 6},
-    {0x1f, 6},
-    {0x5c, 7},
-    {0xfb, 8},
-    {0x7ffc, 15},
-    {0x20, 6},
-    {0xffb, 12},
-    {0x3fc, 10},
-    {0x1ffa, 13},
-    {0x21, 6},
-    {0x5d, 7},
-    {0x5e, 7},
-    {0x5f, 7},
-    {0x60, 7},
-    {0x61, 7},
-    {0x62, 7},
-    {0x63, 7},
-    {0x64, 7},
-    {0x65, 7},
-    {0x66, 7},
-    {0x67, 7},
-    {0x68, 7},
-    {0x69, 7},
-    {0x6a, 7},
-    {0x6b, 7},
-    {0x6c, 7},
-    {0x6d, 7},
-    {0x6e, 7},
-    {0x6f, 7},
-    {0x70, 7},
-    {0x71, 7},
-    {0x72, 7},
-    {0xfc, 8},
-    {0x73, 7},
-    {0xfd, 8},
-    {0x1ffb, 13},
-    {0x7fff0, 19},
-    {0x1ffc, 13},
-    {0x3ffc, 14},
-    {0x22, 6},
-    {0x7ffd, 15},
-    {0x3, 5},
-    {0x23, 6},
-    {0x4, 5},
-    {0x24, 6},
-    {0x5, 5},
-    {0x25, 6},
-    {0x26, 6},
-    {0x27, 6},
-    {0x6, 5},
-    {0x74, 7},
-    {0x75, 7},
-    {0x28, 6},
-    {0x29, 6},
-    {0x2a, 6},
-    {0x7, 5},
-    {0x2b, 6},
-    {0x76, 7},
-    {0x2c, 6},
-    {0x8, 5},
-    {0x9, 5},
-    {0x2d, 6},
-    {0x77, 7},
-    {0x78, 7},
-    {0x79, 7},
-    {0x7a, 7},
-    {0x7b, 7},
-    {0x7ffe, 15},
-    {0x7fc, 11},
-    {0x3ffd, 14},
-    {0x1ffd, 13},
-    {0xffffffc, 28},
-    {0xfffe6, 20},
-    {0x3fffd2, 22},
-    {0xfffe7, 20},
-    {0xfffe8, 20},
-    {0x3fffd3, 22},
-    {0x3fffd4, 22},
-    {0x3fffd5, 22},
-    {0x7fffd9, 23},
-    {0x3fffd6, 22},
-    {0x7fffda, 23},
-    {0x7fffdb, 23},
-    {0x7fffdc, 23},
-    {0x7fffdd, 23},
-    {0x7fffde, 23},
-    {0xffffeb, 24},
-    {0x7fffdf, 23},
-    {0xffffec, 24},
-    {0xffffed, 24},
-    {0x3fffd7, 22},
-    {0x7fffe0, 23},
-    {0xffffee, 24},
-    {0x7fffe1, 23},
-    {0x7fffe2, 23},
-    {0x7fffe3, 23},
-    {0x7fffe4, 23},
-    {0x1fffdc, 21},
-    {0x3fffd8, 22},
-    {0x7fffe5, 23},
-    {0x3fffd9, 22},
-    {0x7fffe6, 23},
-    {0x7fffe7, 23},
-    {0xffffef, 24},
-    {0x3fffda, 22},
-    {0x1fffdd, 21},
-    {0xfffe9, 20},
-    {0x3fffdb, 22},
-    {0x3fffdc, 22},
-    {0x7fffe8, 23},
-    {0x7fffe9, 23},
-    {0x1fffde, 21},
-    {0x7fffea, 23},
-    {0x3fffdd, 22},
-    {0x3fffde, 22},
-    {0xfffff0, 24},
-    {0x1fffdf, 21},
-    {0x3fffdf, 22},
-    {0x7fffeb, 23},
-    {0x7fffec, 23},
-    {0x1fffe0, 21},
-    {0x1fffe1, 21},
-    {0x3fffe0, 22},
-    {0x1fffe2, 21},
-    {0x7fffed, 23},
-    {0x3fffe1, 22},
-    {0x7fffee, 23},
-    {0x7fffef, 23},
-    {0xfffea, 20},
-    {0x3fffe2, 22},
-    {0x3fffe3, 22},
-    {0x3fffe4, 22},
-    {0x7ffff0, 23},
-    {0x3fffe5, 22},
-    {0x3fffe6, 22},
-    {0x7ffff1, 23},
-    {0x3ffffe0, 26},
-    {0x3ffffe1, 26},
-    {0xfffeb, 20},
-    {0x7fff1, 19},
-    {0x3fffe7, 22},
-    {0x7ffff2, 23},
-    {0x3fffe8, 22},
-    {0x1ffffec, 25},
-    {0x3ffffe2, 26},
-    {0x3ffffe3, 26},
-    {0x3ffffe4, 26},
-    {0x7ffffde, 27},
-    {0x7ffffdf, 27},
-    {0x3ffffe5, 26},
-    {0xfffff1, 24},
-    {0x1ffffed, 25},
-    {0x7fff2, 19},
-    {0x1fffe3, 21},
-    {0x3ffffe6, 26},
-    {0x7ffffe0, 27},
-    {0x7ffffe1, 27},
-    {0x3ffffe7, 26},
-    {0x7ffffe2, 27},
-    {0xfffff2, 24},
-    {0x1fffe4, 21},
-    {0x1fffe5, 21},
-    {0x3ffffe8, 26},
-    {0x3ffffe9, 26},
-    {0xffffffd, 28},
-    {0x7ffffe3, 27},
-    {0x7ffffe4, 27},
-    {0x7ffffe5, 27},
-    {0xfffec, 20},
-    {0xfffff3, 24},
-    {0xfffed, 20},
-    {0x1fffe6, 21},
-    {0x3fffe9, 22},
-    {0x1fffe7, 21},
-    {0x1fffe8, 21},
-    {0x7ffff3, 23},
-    {0x3fffea, 22},
-    {0x3fffeb, 22},
-    {0x1ffffee, 25},
-    {0x1ffffef, 25},
-    {0xfffff4, 24},
-    {0xfffff5, 24},
-    {0x3ffffea, 26},
-    {0x7ffff4, 23},
-    {0x3ffffeb, 26},
-    {0x7ffffe6, 27},
-    {0x3ffffec, 26},
-    {0x3ffffed, 26},
-    {0x7ffffe7, 27},
-    {0x7ffffe8, 27},
-    {0x7ffffe9, 27},
-    {0x7ffffea, 27},
-    {0x7ffffeb, 27},
-    {0xffffffe, 28},
-    {0x7ffffec, 27},
-    {0x7ffffed, 27},
-    {0x7ffffee, 27},
-    {0x7ffffef, 27},
-    {0x7fffff0, 27},
-    {0x3ffffee, 26},
-    {0x3fffffff, 30},
-};
diff --git a/src/cpp/client/channel.cc b/src/cpp/client/channel.cc
index ae20392..f174676 100644
--- a/src/cpp/client/channel.cc
+++ b/src/cpp/client/channel.cc
@@ -49,7 +49,7 @@
 #include <grpc/grpc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/slice.h>
-#include "src/core/profiling/timers.h"
+#include "src/core/lib/profiling/timers.h"
 
 namespace grpc {
 
diff --git a/src/cpp/client/client_context.cc b/src/cpp/client/client_context.cc
index 73147fd..de8b2db 100644
--- a/src/cpp/client/client_context.cc
+++ b/src/cpp/client/client_context.cc
@@ -33,15 +33,15 @@
 
 #include <grpc++/client_context.h>
 
+#include <grpc++/security/credentials.h>
+#include <grpc++/server_context.h>
+#include <grpc++/support/time.h>
 #include <grpc/compression.h>
 #include <grpc/grpc.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/string_util.h>
-#include <grpc++/security/credentials.h>
-#include <grpc++/server_context.h>
-#include <grpc++/support/time.h>
 
-#include "src/core/channel/compress_filter.h"
+#include "src/core/lib/channel/compress_filter.h"
 #include "src/cpp/common/create_auth_context.h"
 
 namespace grpc {
diff --git a/src/cpp/client/insecure_credentials.cc b/src/cpp/client/insecure_credentials.cc
index 1293203..efea029 100644
--- a/src/cpp/client/insecure_credentials.cc
+++ b/src/cpp/client/insecure_credentials.cc
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -33,11 +33,11 @@
 
 #include <grpc++/security/credentials.h>
 
-#include <grpc/grpc.h>
-#include <grpc/support/log.h>
 #include <grpc++/channel.h>
 #include <grpc++/support/channel_arguments.h>
 #include <grpc++/support/config.h>
+#include <grpc/grpc.h>
+#include <grpc/support/log.h>
 #include "src/cpp/client/create_channel_internal.h"
 
 namespace grpc {
diff --git a/src/cpp/client/secure_credentials.cc b/src/cpp/client/secure_credentials.cc
index c34b840..cdc8406 100644
--- a/src/cpp/client/secure_credentials.cc
+++ b/src/cpp/client/secure_credentials.cc
@@ -31,12 +31,12 @@
  *
  */
 
+#include "src/cpp/client/secure_credentials.h"
 #include <grpc++/channel.h>
 #include <grpc++/impl/grpc_library.h>
 #include <grpc++/support/channel_arguments.h>
 #include <grpc/support/log.h>
 #include "src/cpp/client/create_channel_internal.h"
-#include "src/cpp/client/secure_credentials.h"
 #include "src/cpp/common/secure_auth_context.h"
 
 namespace grpc {
diff --git a/src/cpp/client/secure_credentials.h b/src/cpp/client/secure_credentials.h
index 9e84102..fd82331 100644
--- a/src/cpp/client/secure_credentials.h
+++ b/src/cpp/client/secure_credentials.h
@@ -36,8 +36,8 @@
 
 #include <grpc/grpc_security.h>
 
-#include <grpc++/support/config.h>
 #include <grpc++/security/credentials.h>
+#include <grpc++/support/config.h>
 
 #include "src/cpp/server/thread_pool_interface.h"
 
diff --git a/src/cpp/common/channel_arguments.cc b/src/cpp/common/channel_arguments.cc
index d7faa5e..3bdb439 100644
--- a/src/cpp/common/channel_arguments.cc
+++ b/src/cpp/common/channel_arguments.cc
@@ -36,7 +36,7 @@
 
 #include <grpc/impl/codegen/grpc_types.h>
 #include <grpc/support/log.h>
-#include "src/core/channel/channel_args.h"
+#include "src/core/lib/channel/channel_args.h"
 
 namespace grpc {
 
diff --git a/src/cpp/common/core_codegen.cc b/src/cpp/common/core_codegen.cc
index 45e9e27..33a8f75 100644
--- a/src/cpp/common/core_codegen.cc
+++ b/src/cpp/common/core_codegen.cc
@@ -46,7 +46,7 @@
 #include <grpc/support/slice.h>
 #include <grpc/support/slice_buffer.h>
 
-#include "src/core/profiling/timers.h"
+#include "src/core/lib/profiling/timers.h"
 
 namespace {
 
diff --git a/src/cpp/common/core_codegen.h b/src/cpp/common/core_codegen.h
index 0d8c6b7..e15cb4c 100644
--- a/src/cpp/common/core_codegen.h
+++ b/src/cpp/common/core_codegen.h
@@ -34,8 +34,8 @@
 // This file should be compiled as part of grpc++.
 
 #include <grpc++/impl/codegen/core_codegen_interface.h>
-#include <grpc/impl/codegen/grpc_types.h>
 #include <grpc/byte_buffer.h>
+#include <grpc/impl/codegen/grpc_types.h>
 
 namespace grpc {
 
diff --git a/src/cpp/common/create_auth_context.h b/src/cpp/common/create_auth_context.h
index 4f3da39..c530555 100644
--- a/src/cpp/common/create_auth_context.h
+++ b/src/cpp/common/create_auth_context.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -32,8 +32,8 @@
  */
 #include <memory>
 
-#include <grpc/grpc.h>
 #include <grpc++/security/auth_context.h>
+#include <grpc/grpc.h>
 
 namespace grpc {
 
diff --git a/src/cpp/common/insecure_create_auth_context.cc b/src/cpp/common/insecure_create_auth_context.cc
index b2e1532..7ec5d9b 100644
--- a/src/cpp/common/insecure_create_auth_context.cc
+++ b/src/cpp/common/insecure_create_auth_context.cc
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -32,8 +32,8 @@
  */
 #include <memory>
 
-#include <grpc/grpc.h>
 #include <grpc++/security/auth_context.h>
+#include <grpc/grpc.h>
 
 namespace grpc {
 
diff --git a/src/cpp/common/secure_channel_arguments.cc b/src/cpp/common/secure_channel_arguments.cc
index e17d3b5..82e02f0 100644
--- a/src/cpp/common/secure_channel_arguments.cc
+++ b/src/cpp/common/secure_channel_arguments.cc
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -34,7 +34,7 @@
 #include <grpc++/support/channel_arguments.h>
 
 #include <grpc/grpc_security.h>
-#include "src/core/channel/channel_args.h"
+#include "src/core/lib/channel/channel_args.h"
 
 namespace grpc {
 
diff --git a/src/cpp/common/secure_create_auth_context.cc b/src/cpp/common/secure_create_auth_context.cc
index 40bc298..d7cf803 100644
--- a/src/cpp/common/secure_create_auth_context.cc
+++ b/src/cpp/common/secure_create_auth_context.cc
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -32,9 +32,9 @@
  */
 #include <memory>
 
+#include <grpc++/security/auth_context.h>
 #include <grpc/grpc.h>
 #include <grpc/grpc_security.h>
-#include <grpc++/security/auth_context.h>
 #include "src/cpp/common/secure_auth_context.h"
 
 namespace grpc {
diff --git a/src/cpp/server/server.cc b/src/cpp/server/server.cc
index 6d31a60..7e5f557 100644
--- a/src/cpp/server/server.cc
+++ b/src/cpp/server/server.cc
@@ -49,7 +49,7 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 
-#include "src/core/profiling/timers.h"
+#include "src/core/lib/profiling/timers.h"
 #include "src/cpp/server/thread_pool_interface.h"
 
 namespace grpc {
diff --git a/src/cpp/server/server_builder.cc b/src/cpp/server/server_builder.cc
index 134e5f1..1947d68 100644
--- a/src/cpp/server/server_builder.cc
+++ b/src/cpp/server/server_builder.cc
@@ -33,10 +33,10 @@
 
 #include <grpc++/server_builder.h>
 
-#include <grpc/support/cpu.h>
-#include <grpc/support/log.h>
 #include <grpc++/impl/service_type.h>
 #include <grpc++/server.h>
+#include <grpc/support/cpu.h>
+#include <grpc/support/log.h>
 #include "src/cpp/server/thread_pool_interface.h"
 
 namespace grpc {
diff --git a/src/cpp/server/server_context.cc b/src/cpp/server/server_context.cc
index 5d12ce2..0422650 100644
--- a/src/cpp/server/server_context.cc
+++ b/src/cpp/server/server_context.cc
@@ -42,8 +42,8 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 
-#include "src/core/channel/compress_filter.h"
-#include "src/core/surface/call.h"
+#include "src/core/lib/channel/compress_filter.h"
+#include "src/core/lib/surface/call.h"
 #include "src/cpp/common/create_auth_context.h"
 
 namespace grpc {
diff --git a/src/cpp/util/time.cc b/src/cpp/util/time.cc
index 2685e31..bb5fce3 100644
--- a/src/cpp/util/time.cc
+++ b/src/cpp/util/time.cc
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,8 +35,8 @@
 
 #ifndef GRPC_CXX0X_NO_CHRONO
 
-#include <grpc/support/time.h>
 #include <grpc++/support/time.h>
+#include <grpc/support/time.h>
 
 using std::chrono::duration_cast;
 using std::chrono::nanoseconds;
diff --git a/src/csharp/ext/grpc_csharp_ext.c b/src/csharp/ext/grpc_csharp_ext.c
index 1df74a0..642dc9e 100644
--- a/src/csharp/ext/grpc_csharp_ext.c
+++ b/src/csharp/ext/grpc_csharp_ext.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/support/string.h"
+#include "src/core/lib/support/string.h"
 
 #include <grpc/byte_buffer_reader.h>
 #include <grpc/support/port_platform.h>
diff --git a/src/node/README.md b/src/node/README.md
index 3501b54..15d4c6d 100644
--- a/src/node/README.md
+++ b/src/node/README.md
@@ -7,6 +7,8 @@
 ## PREREQUISITES
 - `node`: This requires `node` to be installed, version `0.12` or above. If you instead have the `nodejs` executable on Debian, you should install the [`nodejs-legacy`](https://packages.debian.org/sid/nodejs-legacy) package.
 
+- **Note:** If you installed `node` via a package manager and the version is still less than `0.12`, try directly installing it from [nodejs.org](https://nodejs.org).
+
 ## INSTALLATION
 
 Install the gRPC NPM package
@@ -17,7 +19,21 @@
 
 ## BUILD FROM SOURCE
  1. Clone [the grpc Git Repository](https://github.com/grpc/grpc).
- 3. Run `npm install`.
+ 2. Run `npm install` from the repository root.
+
+ - **Note:** On Windows, this might fail due to [nodejs issue #4932](https://github.com/nodejs/node/issues/4932) in which case, you will see something like the following in `npm install`'s output (towards the very beginning):
+
+    ```
+     ..
+     Building the projects in this solution one at a time. To enable parallel build, please add the "/m" switch.
+     WINDOWS_BUILD_WARNING
+      "..\IMPORTANT: Due to https:\github.com\nodejs\node\issues\4932, to build this library on Windows, you must first remove C:\Users\jenkins\.node-gyp\4.4.0\include\node\openssl"
+      ...
+      ..
+    ```
+
+    To fix this, you will have to delete the folder `C:\Users\<username>\.node-gyp\<node_version>\include\node\openssl` and retry `npm install`
+
 
 ## TESTING
 To run the test suite, simply run `npm test` in the install location.
diff --git a/src/node/ext/call_credentials.cc b/src/node/ext/call_credentials.cc
index 98696db..bd2d146 100644
--- a/src/node/ext/call_credentials.cc
+++ b/src/node/ext/call_credentials.cc
@@ -35,6 +35,8 @@
 #include <nan.h>
 #include <uv.h>
 
+#include <list>
+
 #include "grpc/grpc.h"
 #include "grpc/grpc_security.h"
 #include "grpc/support/log.h"
@@ -161,6 +163,15 @@
   grpc_metadata_credentials_plugin plugin;
   plugin_state *state = new plugin_state;
   state->callback = new Nan::Callback(info[0].As<Function>());
+  state->pending_callbacks = new std::list<plugin_callback_data*>();
+  uv_mutex_init(&state->plugin_mutex);
+  uv_async_init(uv_default_loop(),
+                &state->plugin_async,
+                SendPluginCallback);
+  uv_unref((uv_handle_t*)&state->plugin_async);
+
+  state->plugin_async.data = state;
+
   plugin.get_metadata = plugin_get_metadata;
   plugin.destroy = plugin_destroy_state;
   plugin.state = reinterpret_cast<void*>(state);
@@ -208,48 +219,60 @@
 
 NAUV_WORK_CB(SendPluginCallback) {
   Nan::HandleScope scope;
-  plugin_callback_data *data = reinterpret_cast<plugin_callback_data*>(
-      async->data);
-  // Attach cb and user_data to plugin_callback so that it can access them later
-  v8::Local<v8::Function> plugin_callback = Nan::GetFunction(
-      Nan::New<v8::FunctionTemplate>(PluginCallback)).ToLocalChecked();
-  Nan::Set(plugin_callback, Nan::New("cb").ToLocalChecked(),
-           Nan::New<v8::External>(reinterpret_cast<void*>(data->cb)));
-  Nan::Set(plugin_callback, Nan::New("user_data").ToLocalChecked(),
-           Nan::New<v8::External>(data->user_data));
-  const int argc = 2;
-  v8::Local<v8::Value> argv[argc] = {
-    Nan::New(data->service_url).ToLocalChecked(),
-    plugin_callback
-  };
-  Nan::Callback *callback = data->state->callback;
-  callback->Call(argc, argv);
-  delete data;
-  uv_unref((uv_handle_t *)async);
-  uv_close((uv_handle_t *)async, (uv_close_cb)free);
+  plugin_state *state = reinterpret_cast<plugin_state*>(async->data);
+  std::list<plugin_callback_data*> callbacks;
+  uv_mutex_lock(&state->plugin_mutex);
+  callbacks.splice(callbacks.begin(), *state->pending_callbacks);
+  uv_mutex_unlock(&state->plugin_mutex);
+  while (!callbacks.empty()) {
+    plugin_callback_data *data = callbacks.front();
+    callbacks.pop_front();
+    // Attach cb and user_data to plugin_callback so that it can access them later
+    v8::Local<v8::Function> plugin_callback = Nan::GetFunction(
+        Nan::New<v8::FunctionTemplate>(PluginCallback)).ToLocalChecked();
+    Nan::Set(plugin_callback, Nan::New("cb").ToLocalChecked(),
+             Nan::New<v8::External>(reinterpret_cast<void*>(data->cb)));
+    Nan::Set(plugin_callback, Nan::New("user_data").ToLocalChecked(),
+             Nan::New<v8::External>(data->user_data));
+    const int argc = 2;
+    v8::Local<v8::Value> argv[argc] = {
+      Nan::New(data->service_url).ToLocalChecked(),
+      plugin_callback
+    };
+    Nan::Callback *callback = state->callback;
+    callback->Call(argc, argv);
+    delete data;
+  }
 }
 
 void plugin_get_metadata(void *state, grpc_auth_metadata_context context,
                          grpc_credentials_plugin_metadata_cb cb,
                          void *user_data) {
-  uv_async_t *async = static_cast<uv_async_t*>(malloc(sizeof(uv_async_t)));
-  uv_async_init(uv_default_loop(),
-                async,
-                SendPluginCallback);
+  plugin_state *p_state = reinterpret_cast<plugin_state*>(state);
   plugin_callback_data *data = new plugin_callback_data;
-  data->state = reinterpret_cast<plugin_state*>(state);
   data->service_url = context.service_url;
   data->cb = cb;
   data->user_data = user_data;
-  async->data = data;
-  /* libuv says that it will coalesce calls to uv_async_send. If there is ever a
-   * problem with a callback not getting called, that is probably the reason */
-  uv_async_send(async);
+
+  uv_mutex_lock(&p_state->plugin_mutex);
+  p_state->pending_callbacks->push_back(data);
+  uv_mutex_unlock(&p_state->plugin_mutex);
+
+  uv_async_send(&p_state->plugin_async);
+}
+
+void plugin_uv_close_cb(uv_handle_t *handle) {
+  uv_async_t *async = reinterpret_cast<uv_async_t*>(handle);
+  plugin_state *state = reinterpret_cast<plugin_state *>(async->data);
+  uv_mutex_destroy(&state->plugin_mutex);
+  delete state->pending_callbacks;
+  delete state->callback;
+  delete state;
 }
 
 void plugin_destroy_state(void *ptr) {
   plugin_state *state = reinterpret_cast<plugin_state *>(ptr);
-  delete state->callback;
+  uv_close((uv_handle_t*)&state->plugin_async, plugin_uv_close_cb);
 }
 
 }  // namespace node
diff --git a/src/node/ext/call_credentials.h b/src/node/ext/call_credentials.h
index a9bfe30..1f35595 100644
--- a/src/node/ext/call_credentials.h
+++ b/src/node/ext/call_credentials.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -34,8 +34,11 @@
 #ifndef GRPC_NODE_CALL_CREDENTIALS_H_
 #define GRPC_NODE_CALL_CREDENTIALS_H_
 
+#include <list>
+
 #include <node.h>
 #include <nan.h>
+#include <uv.h>
 #include "grpc/grpc_security.h"
 
 namespace grpc {
@@ -73,17 +76,20 @@
 
 /* Auth metadata plugin functionality */
 
-typedef struct plugin_state {
-  Nan::Callback *callback;
-} plugin_state;
-
 typedef struct plugin_callback_data {
-  plugin_state *state;
   const char *service_url;
   grpc_credentials_plugin_metadata_cb cb;
   void *user_data;
 } plugin_callback_data;
 
+typedef struct plugin_state {
+  Nan::Callback *callback;
+  std::list<plugin_callback_data*> *pending_callbacks;
+  uv_mutex_t plugin_mutex;
+  // async.data == this
+  uv_async_t plugin_async;
+} plugin_state;
+
 void plugin_get_metadata(void *state, grpc_auth_metadata_context context,
                          grpc_credentials_plugin_metadata_cb cb,
                          void *user_data);
diff --git a/src/node/performance/benchmark_client.js b/src/node/performance/benchmark_client.js
index 620aecd..80bec0b 100644
--- a/src/node/performance/benchmark_client.js
+++ b/src/node/performance/benchmark_client.js
@@ -45,6 +45,9 @@
 var _ = require('lodash');
 var PoissonProcess = require('poisson-process');
 var Histogram = require('./histogram');
+
+var genericService = require('./generic_service');
+
 var grpc = require('../../../');
 var serviceProto = grpc.load({
   root: __dirname + '/../../..',
@@ -104,10 +107,14 @@
   }
 
   this.clients = [];
+  var GenericClient = grpc.makeGenericClientConstructor(genericService);
+  this.genericClients = [];
 
   for (var i = 0; i < channels; i++) {
     this.clients[i] = new serviceProto.BenchmarkService(
         server_targets[i % server_targets.length], creds, options);
+    this.genericClients[i] = new GenericClient(
+        server_targets[i % server_targets.length], creds, options);
   }
 
   this.histogram = new Histogram(histogram_params.resolution,
@@ -130,9 +137,11 @@
  *     'STREAMING'
  * @param {number} req_size The size of the payload to send with each request
  * @param {number} resp_size The size of payload to request be sent in responses
+ * @param {boolean} generic Indicates that the generic (non-proto) clients
+ *     should be used
  */
 BenchmarkClient.prototype.startClosedLoop = function(
-    outstanding_rpcs_per_channel, rpc_type, req_size, resp_size) {
+    outstanding_rpcs_per_channel, rpc_type, req_size, resp_size, generic) {
   var self = this;
 
   self.running = true;
@@ -141,12 +150,20 @@
 
   var makeCall;
 
-  var argument = {
-    response_size: resp_size,
-    payload: {
-      body: zeroBuffer(req_size)
-    }
-  };
+  var argument;
+  var client_list;
+  if (generic) {
+    argument = zeroBuffer(req_size);
+    client_list = self.genericClients;
+  } else {
+    argument = {
+      response_size: resp_size,
+      payload: {
+        body: zeroBuffer(req_size)
+      }
+    };
+    client_list = self.clients;
+  }
 
   if (rpc_type == 'UNARY') {
     makeCall = function(client) {
@@ -195,7 +212,7 @@
     };
   }
 
-  _.each(self.clients, function(client) {
+  _.each(client_list, function(client) {
     _.times(outstanding_rpcs_per_channel, function() {
       makeCall(client);
     });
@@ -213,9 +230,12 @@
  * @param {number} req_size The size of the payload to send with each request
  * @param {number} resp_size The size of payload to request be sent in responses
  * @param {number} offered_load The load parameter for the Poisson process
+ * @param {boolean} generic Indicates that the generic (non-proto) clients
+ *     should be used
  */
 BenchmarkClient.prototype.startPoisson = function(
-    outstanding_rpcs_per_channel, rpc_type, req_size, resp_size, offered_load) {
+    outstanding_rpcs_per_channel, rpc_type, req_size, resp_size, offered_load,
+    generic) {
   var self = this;
 
   self.running = true;
@@ -224,12 +244,20 @@
 
   var makeCall;
 
-  var argument = {
-    response_size: resp_size,
-    payload: {
-      body: zeroBuffer(req_size)
-    }
-  };
+  var argument;
+  var client_list;
+  if (generic) {
+    argument = zeroBuffer(req_size);
+    client_list = self.genericClients;
+  } else {
+    argument = {
+      response_size: resp_size,
+      payload: {
+        body: zeroBuffer(req_size)
+      }
+    };
+    client_list = self.clients;
+  }
 
   if (rpc_type == 'UNARY') {
     makeCall = function(client, poisson) {
@@ -282,7 +310,7 @@
 
   var averageIntervalMs = (1 / offered_load) * 1000;
 
-  _.each(self.clients, function(client) {
+  _.each(client_list, function(client) {
     _.times(outstanding_rpcs_per_channel, function() {
       var p = PoissonProcess.create(averageIntervalMs, function() {
         makeCall(client, p);
diff --git a/src/node/performance/benchmark_server.js b/src/node/performance/benchmark_server.js
index e48acd4..b1b0bd1 100644
--- a/src/node/performance/benchmark_server.js
+++ b/src/node/performance/benchmark_server.js
@@ -41,6 +41,8 @@
 var fs = require('fs');
 var path = require('path');
 
+var genericService = require('./generic_service');
+
 var grpc = require('../../../');
 var serviceProto = grpc.load({
   root: __dirname + '/../../..',
@@ -84,14 +86,28 @@
   });
 }
 
+function makeStreamingGenericCall(response_size) {
+  var response = zeroBuffer(response_size);
+  return function streamingGenericCall(call) {
+    call.on('data', function(value) {
+      call.write(response);
+    });
+    call.on('end', function() {
+      call.end();
+    });
+  };
+}
+
 /**
  * BenchmarkServer class. Constructed based on parameters from the driver and
  * stores statistics.
  * @param {string} host The host to serve on
  * @param {number} port The port to listen to
- * @param {tls} Indicates whether TLS should be used
+ * @param {boolean} tls Indicates whether TLS should be used
+ * @param {boolean} generic Indicates whether to use the generic service
+ * @param {number=} response_size The response size for the generic service
  */
-function BenchmarkServer(host, port, tls) {
+function BenchmarkServer(host, port, tls, generic, response_size) {
   var server_creds;
   var host_override;
   if (tls) {
@@ -109,10 +125,16 @@
 
   var server = new grpc.Server();
   this.port = server.bind(host + ':' + port, server_creds);
-  server.addProtoService(serviceProto.BenchmarkService.service, {
-    unaryCall: unaryCall,
-    streamingCall: streamingCall
-  });
+  if (generic) {
+    server.addService(genericService, {
+      streamingCall: makeStreamingGenericCall(response_size)
+    });
+  } else {
+    server.addProtoService(serviceProto.BenchmarkService.service, {
+      unaryCall: unaryCall,
+      streamingCall: streamingCall
+    });
+  }
   this.server = server;
 }
 
diff --git a/src/core/surface/lame_client.h b/src/node/performance/generic_service.js
similarity index 82%
copy from src/core/surface/lame_client.h
copy to src/node/performance/generic_service.js
index 3f3abd2..ce09cc4 100644
--- a/src/core/surface/lame_client.h
+++ b/src/node/performance/generic_service.js
@@ -31,11 +31,16 @@
  *
  */
 
-#ifndef GRPC_CORE_SURFACE_LAME_CLIENT_H
-#define GRPC_CORE_SURFACE_LAME_CLIENT_H
+var _ = require('lodash');
 
-#include "src/core/channel/channel_stack.h"
-
-extern const grpc_channel_filter grpc_lame_filter;
-
-#endif /* GRPC_CORE_SURFACE_LAME_CLIENT_H */
+module.exports = {
+  'streamingCall' : {
+    path: '/grpc.testing/BenchmarkService',
+    requestStream: true,
+    responseStream: true,
+    requestSerialize: _.identity,
+    requestDeserialize: _.identity,
+    responseSerialize: _.identity,
+    responseDeserialize: _.identity
+  }
+};
diff --git a/src/node/performance/worker_service_impl.js b/src/node/performance/worker_service_impl.js
index 1439249..2c46513 100644
--- a/src/node/performance/worker_service_impl.js
+++ b/src/node/performance/worker_service_impl.js
@@ -56,18 +56,31 @@
       client.on('error', function(error) {
         call.emit('error', error);
       });
+      var req_size, resp_size, generic;
+      switch (setup.payload_config.payload) {
+        case 'bytebuf_params':
+        req_size = setup.payload_config.bytebuf_params.req_size;
+        resp_size = setup.payload_config.bytebuf_params.resp_size;
+        generic = true;
+        break;
+        case 'simple_params':
+        req_size = setup.payload_config.simple_params.req_size;
+        resp_size = setup.payload_config.simple_params.resp_size;
+        generic = false;
+        break;
+        default:
+        call.emit('error', new Error('Unsupported PayloadConfig type' +
+            setup.payload_config.payload));
+      }
       switch (setup.load_params.load) {
         case 'closed_loop':
         client.startClosedLoop(setup.outstanding_rpcs_per_channel,
-                               setup.rpc_type,
-                               setup.payload_config.simple_params.req_size,
-                               setup.payload_config.simple_params.resp_size);
+                               setup.rpc_type, req_size, resp_size, generic);
         break;
         case 'poisson':
         client.startPoisson(setup.outstanding_rpcs_per_channel,
-                            setup.rpc_type, setup.payload_config.req_size,
-                            setup.payload_config.resp_size,
-                            setup.load_params.poisson.offered_load);
+                            setup.rpc_type, req_size, resp_size,
+                            setup.load_params.poisson.offered_load, generic);
         break;
         default:
         call.emit('error', new Error('Unsupported LoadParams type' +
diff --git a/src/node/src/credentials.js b/src/node/src/credentials.js
index 1d73723..97c4bd7 100644
--- a/src/node/src/credentials.js
+++ b/src/node/src/credentials.js
@@ -118,7 +118,6 @@
 exports.createFromGoogleCredential = function(google_credential) {
   return exports.createFromMetadataGenerator(function(auth_context, callback) {
     var service_url = auth_context.service_url;
-    console.log('Service URL:', service_url);
     google_credential.getRequestMetadata(service_url, function(err, header) {
       if (err) {
         console.log('Auth error:', err);
@@ -127,7 +126,6 @@
       }
       var metadata = new Metadata();
       metadata.add('authorization', header.Authorization);
-      console.log(header.Authorization);
       callback(null, metadata);
     });
   });
diff --git a/src/node/src/server.js b/src/node/src/server.js
index 0cf7ba3..dd0bc12 100644
--- a/src/node/src/server.js
+++ b/src/node/src/server.js
@@ -339,7 +339,7 @@
     try {
       deserialized = self.deserialize(data);
     } catch (e) {
-      e.code = grpc.status.INVALID_ARGUMENT;
+      e.code = grpc.status.INTERNAL;
       self.emit('error', e);
       return;
     }
@@ -475,7 +475,7 @@
     try {
       emitter.request = handler.deserialize(result.read);
     } catch (e) {
-      e.code = grpc.status.INVALID_ARGUMENT;
+      e.code = grpc.status.INTERNAL;
       handleError(call, e);
       return;
     }
@@ -516,7 +516,7 @@
     try {
       stream.request = handler.deserialize(result.read);
     } catch (e) {
-      e.code = grpc.status.INVALID_ARGUMENT;
+      e.code = grpc.status.INTERNAL;
       stream.emit('error', e);
       return;
     }
diff --git a/src/node/test/surface_test.js b/src/node/test/surface_test.js
index 8a232d6..edbfc0a 100644
--- a/src/node/test/surface_test.js
+++ b/src/node/test/surface_test.js
@@ -709,14 +709,14 @@
     it('should respond correctly to a unary call', function(done) {
       misbehavingClient.unary(badArg, function(err, data) {
         assert(err);
-        assert.strictEqual(err.code, grpc.status.INVALID_ARGUMENT);
+        assert.strictEqual(err.code, grpc.status.INTERNAL);
         done();
       });
     });
     it('should respond correctly to a client stream', function(done) {
       var call = misbehavingClient.clientStream(function(err, data) {
         assert(err);
-        assert.strictEqual(err.code, grpc.status.INVALID_ARGUMENT);
+        assert.strictEqual(err.code, grpc.status.INTERNAL);
         done();
       });
       call.write(badArg);
@@ -729,7 +729,7 @@
         assert.fail(data, null, 'Unexpected data', '===');
       });
       call.on('error', function(err) {
-        assert.strictEqual(err.code, grpc.status.INVALID_ARGUMENT);
+        assert.strictEqual(err.code, grpc.status.INTERNAL);
         done();
       });
     });
@@ -739,7 +739,7 @@
         assert.fail(data, null, 'Unexpected data', '===');
       });
       call.on('error', function(err) {
-        assert.strictEqual(err.code, grpc.status.INVALID_ARGUMENT);
+        assert.strictEqual(err.code, grpc.status.INTERNAL);
         done();
       });
       call.write(badArg);
diff --git a/src/objective-c/GRPCClient/GRPCCall.m b/src/objective-c/GRPCClient/GRPCCall.m
index 2d45818..51263b0 100644
--- a/src/objective-c/GRPCClient/GRPCCall.m
+++ b/src/objective-c/GRPCClient/GRPCCall.m
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -308,37 +308,30 @@
 }
 
 - (void)invokeCall {
-  __weak GRPCCall *weakSelf = self;
   [self invokeCallWithHeadersHandler:^(NSDictionary *headers) {
     // Response headers received.
-    GRPCCall *strongSelf = weakSelf;
-    if (strongSelf) {
-      strongSelf.responseHeaders = headers;
-      [strongSelf startNextRead];
-    }
+    self.responseHeaders = headers;
+    [self startNextRead];
   } completionHandler:^(NSError *error, NSDictionary *trailers) {
-    GRPCCall *strongSelf = weakSelf;
-    if (strongSelf) {
-      strongSelf.responseTrailers = trailers;
+    self.responseTrailers = trailers;
 
-      if (error) {
-        NSMutableDictionary *userInfo = [NSMutableDictionary dictionary];
-        if (error.userInfo) {
-          [userInfo addEntriesFromDictionary:error.userInfo];
-        }
-        userInfo[kGRPCTrailersKey] = strongSelf.responseTrailers;
-        // TODO(jcanizales): The C gRPC library doesn't guarantee that the headers block will be
-        // called before this one, so an error might end up with trailers but no headers. We
-        // shouldn't call finishWithError until ater both blocks are called. It is also when this is
-        // done that we can provide a merged view of response headers and trailers in a thread-safe
-        // way.
-        if (strongSelf.responseHeaders) {
-          userInfo[kGRPCHeadersKey] = strongSelf.responseHeaders;
-        }
-        error = [NSError errorWithDomain:error.domain code:error.code userInfo:userInfo];
+    if (error) {
+      NSMutableDictionary *userInfo = [NSMutableDictionary dictionary];
+      if (error.userInfo) {
+        [userInfo addEntriesFromDictionary:error.userInfo];
       }
-      [strongSelf finishWithError:error];
+      userInfo[kGRPCTrailersKey] = self.responseTrailers;
+      // TODO(jcanizales): The C gRPC library doesn't guarantee that the headers block will be
+      // called before this one, so an error might end up with trailers but no headers. We
+      // shouldn't call finishWithError until ater both blocks are called. It is also when this is
+      // done that we can provide a merged view of response headers and trailers in a thread-safe
+      // way.
+      if (self.responseHeaders) {
+        userInfo[kGRPCHeadersKey] = self.responseHeaders;
+      }
+      error = [NSError errorWithDomain:error.domain code:error.code userInfo:userInfo];
     }
+    [self finishWithError:error];
   }];
   // Now that the RPC has been initiated, request writes can start.
   @synchronized(_requestWriter) {
@@ -377,7 +370,6 @@
       [strongSelf finishWithError:[NSError errorWithDomain:kGRPCErrorDomain
                                                       code:GRPCErrorCodeUnavailable
                                                   userInfo:@{NSLocalizedDescriptionKey: @"Connectivity lost."}]];
-      [[GRPCHost hostWithAddress:strongSelf->_host] disconnect];
     }
   }];
 }
diff --git a/src/objective-c/GRPCClient/private/GRPCCompletionQueue.h b/src/objective-c/GRPCClient/private/GRPCCompletionQueue.h
index a52095d..7b66cd4 100644
--- a/src/objective-c/GRPCClient/private/GRPCCompletionQueue.h
+++ b/src/objective-c/GRPCClient/private/GRPCCompletionQueue.h
@@ -36,8 +36,6 @@
 
 typedef void(^GRPCQueueCompletionHandler)(bool success);
 
-extern const int64_t kGRPCCompletionQueueDefaultTimeoutSecs;
-
 /**
  * This class lets one more easily use |grpc_completion_queue|. To use it, pass the value of the
  * |unmanagedQueue| property of an instance of this class to |grpc_channel_create_call|. Then for
@@ -51,11 +49,6 @@
  */
 @interface GRPCCompletionQueue : NSObject
 @property(nonatomic, readonly) grpc_completion_queue *unmanagedQueue;
-@property(nonatomic, readonly) int64_t timeoutSecs;
 
 + (instancetype)completionQueue;
-
-- (instancetype)init;
-- (instancetype)initWithTimeout:(int64_t)timeoutSecs NS_DESIGNATED_INITIALIZER;
-
 @end
diff --git a/src/objective-c/GRPCClient/private/GRPCCompletionQueue.m b/src/objective-c/GRPCClient/private/GRPCCompletionQueue.m
index be214d4..d89602f 100644
--- a/src/objective-c/GRPCClient/private/GRPCCompletionQueue.m
+++ b/src/objective-c/GRPCClient/private/GRPCCompletionQueue.m
@@ -35,9 +35,6 @@
 
 #import <grpc/grpc.h>
 
-
-const int64_t kGRPCCompletionQueueDefaultTimeoutSecs = 60;
-
 @implementation GRPCCompletionQueue
 
 + (instancetype)completionQueue {
@@ -50,13 +47,8 @@
 }
 
 - (instancetype)init {
-  return [self initWithTimeout:kGRPCCompletionQueueDefaultTimeoutSecs];
-}
-
-- (instancetype)initWithTimeout:(int64_t)timeoutSecs {
   if ((self = [super init])) {
     _unmanagedQueue = grpc_completion_queue_create(NULL);
-    _timeoutSecs = timeoutSecs;
 
     // This is for the following block to capture the pointer by value (instead
     // of retaining self and doing self->_unmanagedQueue). This is essential
@@ -74,28 +66,22 @@
       gDefaultConcurrentQueue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
     });
     dispatch_async(gDefaultConcurrentQueue, ^{
-      // Using a non-infinite deadline to re-enter grpc_completion_queue_next()
-      // alleviates https://github.com/grpc/grpc/issues/5593
-      gpr_timespec deadline = (timeoutSecs < 0)
-          ? gpr_inf_future(GPR_CLOCK_REALTIME)
-          : gpr_time_from_seconds(timeoutSecs, GPR_CLOCK_REALTIME);
       while (YES) {
-        // The following call blocks until an event is available or the deadline elapses.
-        grpc_event event = grpc_completion_queue_next(unmanagedQueue, deadline, NULL);
+        // The following call blocks until an event is available.
+        grpc_event event = grpc_completion_queue_next(unmanagedQueue,
+                                                      gpr_inf_future(GPR_CLOCK_REALTIME),
+                                                      NULL);
         GRPCQueueCompletionHandler handler;
         switch (event.type) {
           case GRPC_OP_COMPLETE:
             handler = (__bridge_transfer GRPCQueueCompletionHandler)event.tag;
             handler(event.success);
             break;
-          case GRPC_QUEUE_TIMEOUT:
-            // Nothing to do here
-            break;
           case GRPC_QUEUE_SHUTDOWN:
             grpc_completion_queue_destroy(unmanagedQueue);
             return;
           default:
-            [NSException raise:@"Unrecognized completion type" format:@"type=%d", event.type];
+            [NSException raise:@"Unrecognized completion type" format:@""];
         }
       };
     });
diff --git a/src/objective-c/GRPCClient/private/GRPCWrappedCall.m b/src/objective-c/GRPCClient/private/GRPCWrappedCall.m
index fe3d51d..f6527e2 100644
--- a/src/objective-c/GRPCClient/private/GRPCWrappedCall.m
+++ b/src/objective-c/GRPCClient/private/GRPCWrappedCall.m
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -54,7 +54,9 @@
 
 - (void)finish {
   if (_handler) {
-    _handler();
+    void(^handler)() = _handler;
+    _handler = nil;
+    handler();
   }
 }
 @end
diff --git a/src/proto/grpc/testing/metrics.proto b/src/proto/grpc/testing/metrics.proto
index 4485d3a..df719af 100644
--- a/src/proto/grpc/testing/metrics.proto
+++ b/src/proto/grpc/testing/metrics.proto
@@ -1,5 +1,4 @@
-
-// Copyright 2015, Google Inc.
+// Copyright 2015-2016, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -28,12 +27,17 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-// An integration test service that covers all the method signature permutations
-// of unary/streaming requests/responses.
+// Contains the definitions for a metrics service and the type of metrics
+// exposed by the service.
+//
+// Currently, 'Gauge' (i.e a metric that represents the measured value of
+// something at an instant of time) is the only metric type supported by the
+// service.
 syntax = "proto3";
 
 package grpc.testing;
 
+// Reponse message containing the gauge name and value
 message GaugeResponse {
   string name = 1;
   oneof value {
@@ -43,11 +47,18 @@
   }
 }
 
-message GaugeRequest { string name = 1; }
+// Request message containing the gauge name
+message GaugeRequest {
+  string name = 1;
+}
 
 message EmptyMessage {}
 
 service MetricsService {
+  // Returns the values of all the gauges that are currently being maintained by
+  // the service
   rpc GetAllGauges(EmptyMessage) returns (stream GaugeResponse);
+
+  // Returns the value of one gauge
   rpc GetGauge(GaugeRequest) returns (GaugeResponse);
 }
diff --git a/src/python/grpcio/grpc/_adapter/_types.py b/src/python/grpcio/grpc/_adapter/_types.py
index 3d5ab33..f9e18f0 100644
--- a/src/python/grpcio/grpc/_adapter/_types.py
+++ b/src/python/grpcio/grpc/_adapter/_types.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -31,6 +31,8 @@
 import collections
 import enum
 
+import six
+
 from grpc._cython import cygrpc
 
 
@@ -247,8 +249,7 @@
   """
 
 
-class CompletionQueue:
-  __metaclass__ = abc.ABCMeta
+class CompletionQueue(six.with_metaclass(abc.ABCMeta)):
 
   @abc.abstractmethod
   def __init__(self):
@@ -262,6 +263,9 @@
     """
     return self
 
+  def __next__(self):
+    return self.next()
+
   @abc.abstractmethod
   def next(self, deadline=float('+inf')):
     """Get the next event on this completion queue.
@@ -285,8 +289,7 @@
     return None
 
 
-class Call:
-  __metaclass__ = abc.ABCMeta
+class Call(six.with_metaclass(abc.ABCMeta)):
 
   @abc.abstractmethod
   def start_batch(self, ops, tag):
@@ -334,8 +337,7 @@
     return None
 
 
-class Channel:
-  __metaclass__ = abc.ABCMeta
+class Channel(six.with_metaclass(abc.ABCMeta)):
 
   @abc.abstractmethod
   def __init__(self, target, args, credentials=None):
@@ -399,8 +401,7 @@
     return None
 
 
-class Server:
-  __metaclass__ = abc.ABCMeta
+class Server(six.with_metaclass(abc.ABCMeta)):
 
   @abc.abstractmethod
   def __init__(self, completion_queue, args):
diff --git a/src/python/grpcio/grpc/_cython/_cygrpc/records.pyx.pxi b/src/python/grpcio/grpc/_cython/_cygrpc/records.pyx.pxi
index 851389a..6ecdcf7 100644
--- a/src/python/grpcio/grpc/_cython/_cygrpc/records.pyx.pxi
+++ b/src/python/grpcio/grpc/_cython/_cygrpc/records.pyx.pxi
@@ -254,7 +254,7 @@
     if self.c_byte_buffer != NULL:
       with nogil:
         grpc_byte_buffer_reader_init(&reader, self.c_byte_buffer)
-      result = b""
+      result = bytearray()
       with nogil:
         while grpc_byte_buffer_reader_next(&reader, &data_slice):
           data_slice_pointer = gpr_slice_start_ptr(data_slice)
@@ -263,7 +263,7 @@
             result += (<char *>data_slice_pointer)[:data_slice_length]
       with nogil:
         grpc_byte_buffer_reader_destroy(&reader)
-      return result
+      return bytes(result)
     else:
       return None
 
diff --git a/src/python/grpcio/grpc/_links/invocation.py b/src/python/grpcio/grpc/_links/invocation.py
index 5ca0a0e..672e3e4 100644
--- a/src/python/grpcio/grpc/_links/invocation.py
+++ b/src/python/grpcio/grpc/_links/invocation.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -35,6 +35,8 @@
 import threading
 import time
 
+import six
+
 from grpc._adapter import _intermediary_low
 from grpc._links import _constants
 from grpc.beta import interfaces as beta_interfaces
@@ -372,12 +374,11 @@
     pool.shutdown(wait=True)
 
 
-class InvocationLink(links.Link, activated.Activated):
+class InvocationLink(six.with_metaclass(abc.ABCMeta, links.Link, activated.Activated)):
   """A links.Link for use on the invocation-side of a gRPC connection.
 
   Implementations of this interface are only valid for use when activated.
   """
-  __metaclass__ = abc.ABCMeta
 
 
 class _InvocationLink(InvocationLink):
diff --git a/src/python/grpcio/grpc/_links/service.py b/src/python/grpcio/grpc/_links/service.py
index 01edee6..e0f26a5 100644
--- a/src/python/grpcio/grpc/_links/service.py
+++ b/src/python/grpcio/grpc/_links/service.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -177,7 +177,7 @@
     call = service_acceptance.call
     call.accept(self._completion_queue, call)
     try:
-      group, method = service_acceptance.method.split('/')[1:3]
+      group, method = service_acceptance.method.split(b'/')[1:3]
     except ValueError:
       logging.info('Illegal path "%s"!', service_acceptance.method)
       return
diff --git a/src/python/grpcio/grpc/beta/_server.py b/src/python/grpcio/grpc/beta/_server.py
index 2b520cc..12d16e6 100644
--- a/src/python/grpcio/grpc/beta/_server.py
+++ b/src/python/grpcio/grpc/beta/_server.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -62,7 +62,7 @@
       if e.code is None and e.details is None:
         raise base.NoSuchMethodError(
             interfaces.StatusCode.UNIMPLEMENTED,
-            b'Method "%s" of service "%s" not implemented!' % (method, group))
+            'Method "%s" of service "%s" not implemented!' % (method, group))
       else:
         raise
 
diff --git a/src/python/grpcio/grpc/beta/interfaces.py b/src/python/grpcio/grpc/beta/interfaces.py
index 0663119..e29a5b3 100644
--- a/src/python/grpcio/grpc/beta/interfaces.py
+++ b/src/python/grpcio/grpc/beta/interfaces.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -32,6 +32,8 @@
 import abc
 import enum
 
+import six
+
 from grpc._adapter import _types
 
 
@@ -105,19 +107,17 @@
   return GRPCCallOptions(disable_compression, None, credentials)
 
 
-class GRPCAuthMetadataContext(object):
+class GRPCAuthMetadataContext(six.with_metaclass(abc.ABCMeta)):
   """Provides information to call credentials metadata plugins.
 
   Attributes:
     service_url: A string URL of the service being called into.
     method_name: A string of the fully qualified method name being called.
   """
-  __metaclass__ = abc.ABCMeta
 
 
-class GRPCAuthMetadataPluginCallback(object):
+class GRPCAuthMetadataPluginCallback(six.with_metaclass(abc.ABCMeta)):
   """Callback object received by a metadata plugin."""
-  __metaclass__ = abc.ABCMeta
 
   def __call__(self, metadata, error):
     """Inform the gRPC runtime of the metadata to construct a CallCredentials.
@@ -130,10 +130,9 @@
     raise NotImplementedError()
 
 
-class GRPCAuthMetadataPlugin(object):
+class GRPCAuthMetadataPlugin(six.with_metaclass(abc.ABCMeta)):
   """
   """
-  __metaclass__ = abc.ABCMeta
 
   def __call__(self, context, callback):
     """Invoke the plugin.
@@ -149,9 +148,8 @@
     raise NotImplementedError()
 
 
-class GRPCServicerContext(object):
+class GRPCServicerContext(six.with_metaclass(abc.ABCMeta)):
   """Exposes gRPC-specific options and behaviors to code servicing RPCs."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def peer(self):
@@ -168,9 +166,8 @@
     raise NotImplementedError()
 
 
-class GRPCInvocationContext(object):
+class GRPCInvocationContext(six.with_metaclass(abc.ABCMeta)):
   """Exposes gRPC-specific options and behaviors to code invoking RPCs."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def disable_next_request_compression(self):
@@ -178,9 +175,8 @@
     raise NotImplementedError()
 
 
-class Server(object):
+class Server(six.with_metaclass(abc.ABCMeta)):
   """Services RPCs."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def add_insecure_port(self, address):
diff --git a/src/python/grpcio/grpc/framework/alpha/_face_utilities.py b/src/python/grpcio/grpc/framework/alpha/_face_utilities.py
index fb0cfe4..b5e4133 100644
--- a/src/python/grpcio/grpc/framework/alpha/_face_utilities.py
+++ b/src/python/grpcio/grpc/framework/alpha/_face_utilities.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -30,6 +30,8 @@
 import abc
 import collections
 
+import six
+
 # face_interfaces is referenced from specification in this module.
 from grpc.framework.common import cardinality
 from grpc.framework.face import interfaces as face_interfaces  # pylint: disable=unused-import
@@ -45,7 +47,7 @@
 # TODO(nathaniel): This structure is getting bloated; it could be shrunk if
 # implementations._Stub used a generic rather than a dynamic underlying
 # face-layer stub.
-class InvocationBreakdown(object):
+class InvocationBreakdown(six.with_metaclass(abc.ABCMeta)):
   """An intermediate representation of invocation-side views of RPC methods.
 
   Attributes:
@@ -61,7 +63,6 @@
       to callable behavior to be used deserializing response values for the
       RPC.
   """
-  __metaclass__ = abc.ABCMeta
 
 
 class _EasyInvocationBreakdown(
@@ -73,7 +74,7 @@
   pass
 
 
-class ServiceBreakdown(object):
+class ServiceBreakdown(six.with_metaclass(abc.ABCMeta)):
   """An intermediate representation of service-side views of RPC methods.
 
   Attributes:
@@ -84,7 +85,6 @@
     response_serializers: A dictionary from service-qualified RPC method name
       to callable behavior to be used serializing response values for the RPC.
   """
-  __metaclass__ = abc.ABCMeta
 
 
 class _EasyServiceBreakdown(
@@ -111,7 +111,7 @@
   face_cardinalities = {}
   request_serializers = {}
   response_deserializers = {}
-  for name, method_description in method_descriptions.iteritems():
+  for name, method_description in six.iteritems(method_descriptions):
     qualified_name = _qualified_name(service_name, name)
     method_cardinality = method_description.cardinality()
     cardinalities[name] = method_description.cardinality()
@@ -139,7 +139,7 @@
   implementations = {}
   request_deserializers = {}
   response_serializers = {}
-  for name, method_description in method_descriptions.iteritems():
+  for name, method_description in six.iteritems(method_descriptions):
     qualified_name = _qualified_name(service_name, name)
     method_cardinality = method_description.cardinality()
     if method_cardinality is interfaces.Cardinality.UNARY_UNARY:
diff --git a/src/python/grpcio/grpc/framework/alpha/_reexport.py b/src/python/grpcio/grpc/framework/alpha/_reexport.py
index 198cb95..4ea0e94 100644
--- a/src/python/grpcio/grpc/framework/alpha/_reexport.py
+++ b/src/python/grpcio/grpc/framework/alpha/_reexport.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -27,6 +27,8 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+import six
+
 from grpc.framework.common import cardinality
 from grpc.framework.face import exceptions as face_exceptions
 from grpc.framework.face import interfaces as face_interfaces
@@ -181,7 +183,7 @@
 
 def common_cardinalities(early_adopter_cardinalities):
   common_cardinalities = {}
-  for name, early_adopter_cardinality in early_adopter_cardinalities.iteritems():
+  for name, early_adopter_cardinality in six.iteritems(early_adopter_cardinalities):
     common_cardinalities[name] = _EARLY_ADOPTER_CARDINALITY_TO_COMMON_CARDINALITY[
         early_adopter_cardinality]
   return common_cardinalities
diff --git a/src/python/grpcio/grpc/framework/alpha/exceptions.py b/src/python/grpcio/grpc/framework/alpha/exceptions.py
index 5234d3b..8ec2604 100644
--- a/src/python/grpcio/grpc/framework/alpha/exceptions.py
+++ b/src/python/grpcio/grpc/framework/alpha/exceptions.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -31,13 +31,12 @@
 
 Only GRPC should instantiate and raise these exceptions.
 """
-
 import abc
 
+import six
 
-class RpcError(Exception):
+class RpcError(six.with_metaclass(abc.ABCMeta, Exception)):
   """Common super type for all exceptions raised by GRPC."""
-  __metaclass__ = abc.ABCMeta
 
 
 class CancellationError(RpcError):
diff --git a/src/python/grpcio/grpc/framework/alpha/interfaces.py b/src/python/grpcio/grpc/framework/alpha/interfaces.py
index 8380567..cb6d58b 100644
--- a/src/python/grpcio/grpc/framework/alpha/interfaces.py
+++ b/src/python/grpcio/grpc/framework/alpha/interfaces.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -32,6 +32,8 @@
 import abc
 import enum
 
+import six
+
 # exceptions is referenced from specification in this module.
 from grpc.framework.alpha import exceptions  # pylint: disable=unused-import
 from grpc.framework.foundation import activated
@@ -59,15 +61,17 @@
   SERVICER_FAILURE = 'servicer failure'
 
 
-class CancellableIterator(object):
+class CancellableIterator(six.with_metaclass(abc.ABCMeta)):
   """Implements the Iterator protocol and affords a cancel method."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def __iter__(self):
     """Returns the self object in accordance with the Iterator protocol."""
     raise NotImplementedError()
 
+  def __next__(self):
+    return self.next()
+
   @abc.abstractmethod
   def next(self):
     """Returns a value or raises StopIteration per the Iterator protocol."""
@@ -79,9 +83,8 @@
     raise NotImplementedError()
 
 
-class RpcContext(object):
+class RpcContext(six.with_metaclass(abc.ABCMeta)):
   """Provides RPC-related information and action."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def is_active(self):
@@ -108,7 +111,7 @@
     raise NotImplementedError()
 
 
-class UnaryUnarySyncAsync(object):
+class UnaryUnarySyncAsync(six.with_metaclass(abc.ABCMeta)):
   """Affords invoking a unary-unary RPC synchronously or asynchronously.
   Values implementing this interface are directly callable and present an
   "async" method. Both calls take a request value and a numeric timeout.
@@ -117,7 +120,6 @@
   of a value of this type invokes its associated RPC and immediately returns a
   future.Future bound to the asynchronous execution of the RPC.
   """
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def __call__(self, request, timeout):
@@ -147,7 +149,7 @@
     raise NotImplementedError()
 
 
-class StreamUnarySyncAsync(object):
+class StreamUnarySyncAsync(six.with_metaclass(abc.ABCMeta)):
   """Affords invoking a stream-unary RPC synchronously or asynchronously.
   Values implementing this interface are directly callable and present an
   "async" method. Both calls take an iterator of request values and a numeric
@@ -156,7 +158,6 @@
   of a value of this type invokes its associated RPC and immediately returns a
   future.Future bound to the asynchronous execution of the RPC.
   """
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def __call__(self, request_iterator, timeout):
@@ -191,9 +192,8 @@
     raise NotImplementedError()
 
 
-class RpcMethodDescription(object):
+class RpcMethodDescription(six.with_metaclass(abc.ABCMeta)):
   """A type for the common aspects of RPC method descriptions."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def cardinality(self):
@@ -207,9 +207,8 @@
     raise NotImplementedError()
 
 
-class RpcMethodInvocationDescription(RpcMethodDescription):
+class RpcMethodInvocationDescription(six.with_metaclass(abc.ABCMeta, RpcMethodDescription)):
   """Invocation-side description of an RPC method."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def serialize_request(self, request):
@@ -240,9 +239,8 @@
     raise NotImplementedError()
 
 
-class RpcMethodServiceDescription(RpcMethodDescription):
+class RpcMethodServiceDescription(six.with_metaclass(abc.ABCMeta, RpcMethodDescription)):
   """Service-side description of an RPC method."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def deserialize_request(self, serialized_request):
@@ -345,7 +343,7 @@
     raise NotImplementedError()
 
 
-class Stub(object):
+class Stub(six.with_metaclass(abc.ABCMeta)):
   """A stub with callable RPC method names for attributes.
 
   Instances of this type are context managers and only afford RPC invocation
@@ -369,12 +367,10 @@
   exceptions.RpcError, exceptions.CancellationError,
   and exceptions.ExpirationError.
   """
-  __metaclass__ = abc.ABCMeta
 
 
-class Server(activated.Activated):
+class Server(six.with_metaclass(abc.ABCMeta, activated.Activated)):
   """A GRPC Server."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def port(self):
diff --git a/src/python/grpcio/grpc/framework/base/_ingestion.py b/src/python/grpcio/grpc/framework/base/_ingestion.py
index 06d5b92..090cb15 100644
--- a/src/python/grpcio/grpc/framework/base/_ingestion.py
+++ b/src/python/grpcio/grpc/framework/base/_ingestion.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -32,6 +32,8 @@
 import abc
 import collections
 
+import six
+
 from grpc.framework.base import _constants
 from grpc.framework.base import _interfaces
 from grpc.framework.base import exceptions
@@ -72,9 +74,8 @@
     """See stream.Consumer.consume_and_terminate for specification."""
 
 
-class _ConsumerCreator(object):
+class _ConsumerCreator(six.with_metaclass(abc.ABCMeta)):
   """Common specification of different consumer-creating behavior."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def create_consumer(self, requirement):
diff --git a/src/python/grpcio/grpc/framework/base/_interfaces.py b/src/python/grpcio/grpc/framework/base/_interfaces.py
index d88cf76..c0cc866 100644
--- a/src/python/grpcio/grpc/framework/base/_interfaces.py
+++ b/src/python/grpcio/grpc/framework/base/_interfaces.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -31,14 +31,15 @@
 
 import abc
 
+import six
+
 # interfaces is referenced from specification in this module.
 from grpc.framework.base import interfaces  # pylint: disable=unused-import
 from grpc.framework.foundation import stream
 
 
-class TerminationManager(object):
+class TerminationManager(six.with_metaclass(abc.ABCMeta)):
   """An object responsible for handling the termination of an operation."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def set_expiration_manager(self, expiration_manager):
@@ -91,9 +92,8 @@
     raise NotImplementedError()
 
 
-class TransmissionManager(object):
+class TransmissionManager(six.with_metaclass(abc.ABCMeta)):
   """A manager responsible for transmitting to the other end of an operation."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def inmit(self, emission, complete):
@@ -117,9 +117,8 @@
     raise NotImplementedError()
 
 
-class EmissionManager(stream.Consumer):
+class EmissionManager(six.with_metaclass(abc.ABCMeta, stream.Consumer)):
   """A manager of values emitted by customer code."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def set_ingestion_manager_and_expiration_manager(
@@ -166,9 +165,8 @@
     raise NotImplementedError()
 
 
-class IngestionManager(stream.Consumer):
+class IngestionManager(six.with_metaclass(abc.ABCMeta, stream.Consumer)):
   """A manager responsible for executing customer code."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def set_expiration_manager(self, expiration_manager):
@@ -214,9 +212,8 @@
     raise NotImplementedError()
 
 
-class ExpirationManager(object):
+class ExpirationManager(six.with_metaclass(abc.ABCMeta)):
   """A manager responsible for aborting the operation if it runs out of time."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def change_timeout(self, timeout):
@@ -246,9 +243,8 @@
     raise NotImplementedError()
 
 
-class ReceptionManager(object):
+class ReceptionManager(six.with_metaclass(abc.ABCMeta)):
   """A manager responsible for receiving tickets from the other end."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def receive_ticket(self, ticket):
@@ -261,9 +257,8 @@
     raise NotImplementedError()
 
 
-class CancellationManager(object):
+class CancellationManager(six.with_metaclass(abc.ABCMeta)):
   """A manager of operation cancellation."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def cancel(self):
diff --git a/src/python/grpcio/grpc/framework/base/_reception.py b/src/python/grpcio/grpc/framework/base/_reception.py
index dd42896..2bee394 100644
--- a/src/python/grpcio/grpc/framework/base/_reception.py
+++ b/src/python/grpcio/grpc/framework/base/_reception.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -31,6 +31,8 @@
 
 import abc
 
+import six
+
 from grpc.framework.base import interfaces
 from grpc.framework.base import _interfaces
 
@@ -40,9 +42,8 @@
 )
 
 
-class _Receiver(object):
+class _Receiver(six.with_metaclass(abc.ABCMeta)):
   """Common specification of different ticket-handling behavior."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def abort_if_abortive(self, ticket):
diff --git a/src/python/grpcio/grpc/framework/base/_transmission.py b/src/python/grpcio/grpc/framework/base/_transmission.py
index 6845129..398faaf 100644
--- a/src/python/grpcio/grpc/framework/base/_transmission.py
+++ b/src/python/grpcio/grpc/framework/base/_transmission.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -31,6 +31,8 @@
 
 import abc
 
+import six
+
 from grpc.framework.base import _constants
 from grpc.framework.base import _interfaces
 from grpc.framework.base import interfaces
@@ -77,9 +79,8 @@
 }
 
 
-class _Ticketizer(object):
+class _Ticketizer(six.with_metaclass(abc.ABCMeta)):
   """Common specification of different ticket-creating behavior."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def ticketize(self, operation_id, sequence_number, payload, complete):
@@ -187,9 +188,8 @@
           operation_id, sequence_number, kind, None)
 
 
-class TransmissionManager(_interfaces.TransmissionManager):
+class TransmissionManager(six.with_metaclass(abc.ABCMeta, _interfaces.TransmissionManager)):
   """A _interfaces.TransmissionManager on which other managers may be set."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def set_ingestion_and_expiration_managers(
diff --git a/src/python/grpcio/grpc/framework/base/interfaces.py b/src/python/grpcio/grpc/framework/base/interfaces.py
index e22c10d..7c58a23 100644
--- a/src/python/grpcio/grpc/framework/base/interfaces.py
+++ b/src/python/grpcio/grpc/framework/base/interfaces.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -33,6 +33,8 @@
 import collections
 import enum
 
+import six
+
 # stream is referenced from specification in this module.
 from grpc.framework.foundation import stream  # pylint: disable=unused-import
 
@@ -50,13 +52,12 @@
   SERVICED_FAILURE = 'serviced failure'
 
 
-class OperationContext(object):
+class OperationContext(six.with_metaclass(abc.ABCMeta)):
   """Provides operation-related information and action.
 
   Attributes:
     trace_id: A uuid.UUID identifying a particular set of related operations.
   """
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def is_active(self):
@@ -93,9 +94,8 @@
     raise NotImplementedError()
 
 
-class Servicer(object):
+class Servicer(six.with_metaclass(abc.ABCMeta)):
   """Interface for service implementations."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def service(self, name, context, output_consumer):
@@ -120,7 +120,7 @@
     raise NotImplementedError()
 
 
-class Operation(object):
+class Operation(six.with_metaclass(abc.ABCMeta)):
   """Representation of an in-progress operation.
 
   Attributes:
@@ -129,7 +129,6 @@
     context: An OperationContext affording information and action about the
       operation.
   """
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def cancel(self):
@@ -137,9 +136,8 @@
     raise NotImplementedError()
 
 
-class ServicedIngestor(object):
+class ServicedIngestor(six.with_metaclass(abc.ABCMeta)):
   """Responsible for accepting the result of an operation."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def consumer(self, operation_context):
@@ -159,7 +157,7 @@
     raise NotImplementedError()
 
 
-class ServicedSubscription(object):
+class ServicedSubscription(six.with_metaclass(abc.ABCMeta)):
   """A sum type representing a serviced's interest in an operation.
 
   Attributes:
@@ -167,7 +165,6 @@
     ingestor: A ServicedIngestor. Must be present if kind is Kind.FULL. Must
       be None if kind is Kind.TERMINATION_ONLY or Kind.NONE.
   """
-  __metaclass__ = abc.ABCMeta
 
   @enum.unique
   class Kind(enum.Enum):
@@ -178,9 +175,8 @@
     NONE = 'none'
 
 
-class End(object):
+class End(six.with_metaclass(abc.ABCMeta)):
   """Common type for entry-point objects on both sides of an operation."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def operation_stats(self):
@@ -202,9 +198,8 @@
     raise NotImplementedError()
 
 
-class Front(End):
+class Front(six.with_metaclass(abc.ABCMeta, End)):
   """Clientish objects that afford the invocation of operations."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def operate(
@@ -228,9 +223,8 @@
     raise NotImplementedError()
 
 
-class Back(End):
+class Back(six.with_metaclass(abc.ABCMeta, End)):
   """Serverish objects that perform the work of operations."""
-  __metaclass__ = abc.ABCMeta
 
 
 class FrontToBackTicket(
@@ -315,9 +309,8 @@
     TRANSMISSION_FAILURE = 'transmission failure'
 
 
-class ForeLink(object):
+class ForeLink(six.with_metaclass(abc.ABCMeta)):
   """Accepts back-to-front tickets and emits front-to-back tickets."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def accept_back_to_front_ticket(self, ticket):
@@ -334,9 +327,8 @@
     raise NotImplementedError()
 
 
-class RearLink(object):
+class RearLink(six.with_metaclass(abc.ABCMeta)):
   """Accepts front-to-back tickets and emits back-to-front tickets."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def accept_front_to_back_ticket(self, ticket):
@@ -353,11 +345,9 @@
     raise NotImplementedError()
 
 
-class FrontLink(Front, ForeLink):
+class FrontLink(six.with_metaclass(abc.ABCMeta, Front, ForeLink)):
   """Clientish objects that operate by sending and receiving tickets."""
-  __metaclass__ = abc.ABCMeta
 
 
-class BackLink(Back, RearLink):
+class BackLink(six.with_metaclass(abc.ABCMeta, Back, RearLink)):
   """Serverish objects that operate by sending and receiving tickets."""
-  __metaclass__ = abc.ABCMeta
diff --git a/src/python/grpcio/grpc/framework/core/_end.py b/src/python/grpcio/grpc/framework/core/_end.py
index 9c61567..dc2f485 100644
--- a/src/python/grpcio/grpc/framework/core/_end.py
+++ b/src/python/grpcio/grpc/framework/core/_end.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -33,6 +33,8 @@
 import threading
 import uuid
 
+import six
+
 from grpc.framework.core import _operation
 from grpc.framework.core import _utilities
 from grpc.framework.foundation import callable_util
@@ -45,7 +47,7 @@
 _IDLE_ACTION_EXCEPTION_LOG_MESSAGE = 'Exception calling idle action!'
 
 
-class End(base.End, links.Link):
+class End(six.with_metaclass(abc.ABCMeta, base.End, links.Link)):
   """A bridge between base.End and links.Link.
 
   Implementations of this interface translate arriving tickets into
@@ -53,7 +55,6 @@
   translate calls from application objects implementing base interfaces
   into tickets sent to a joined link.
   """
-  __metaclass__ = abc.ABCMeta
 
 
 class _Cycle(object):
diff --git a/src/python/grpcio/grpc/framework/core/_ingestion.py b/src/python/grpcio/grpc/framework/core/_ingestion.py
index 4129a8c..1e1fd73 100644
--- a/src/python/grpcio/grpc/framework/core/_ingestion.py
+++ b/src/python/grpcio/grpc/framework/core/_ingestion.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -33,6 +33,8 @@
 import collections
 import enum
 
+import six
+
 from grpc.framework.core import _constants
 from grpc.framework.core import _interfaces
 from grpc.framework.core import _utilities
@@ -70,9 +72,8 @@
     ABANDONED = 'abandoned'
 
 
-class _SubscriptionCreator(object):
+class _SubscriptionCreator(six.with_metaclass(abc.ABCMeta)):
   """Common specification of subscription-creating behavior."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def create(self, group, method):
diff --git a/src/python/grpcio/grpc/framework/core/_interfaces.py b/src/python/grpcio/grpc/framework/core/_interfaces.py
index ffa686b..985e5e8 100644
--- a/src/python/grpcio/grpc/framework/core/_interfaces.py
+++ b/src/python/grpcio/grpc/framework/core/_interfaces.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -31,17 +31,18 @@
 
 import abc
 
+import six
+
 from grpc.framework.interfaces.base import base
 
 
-class TerminationManager(object):
+class TerminationManager(six.with_metaclass(abc.ABCMeta)):
   """An object responsible for handling the termination of an operation.
 
   Attributes:
     outcome: None if the operation is active or a base.Outcome value if it has
       terminated.
   """
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def add_callback(self, callback):
@@ -105,9 +106,8 @@
     raise NotImplementedError()
 
 
-class TransmissionManager(object):
+class TransmissionManager(six.with_metaclass(abc.ABCMeta)):
   """A manager responsible for transmitting to the other end of an operation."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def kick_off(
@@ -171,9 +171,8 @@
     raise NotImplementedError()
 
 
-class ExpirationManager(object):
+class ExpirationManager(six.with_metaclass(abc.ABCMeta)):
   """A manager responsible for aborting the operation if it runs out of time."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def change_timeout(self, timeout):
@@ -203,9 +202,8 @@
     raise NotImplementedError()
 
 
-class ProtocolManager(object):
+class ProtocolManager(six.with_metaclass(abc.ABCMeta)):
   """A manager of protocol-specific values passing through an operation."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def set_protocol_receiver(self, protocol_receiver):
@@ -228,9 +226,8 @@
     raise NotImplementedError()
 
 
-class EmissionManager(base.Operator):
+class EmissionManager(six.with_metaclass(abc.ABCMeta, base.Operator)):
   """A manager of values emitted by customer code."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def advance(
@@ -254,14 +251,13 @@
     raise NotImplementedError()
 
 
-class IngestionManager(object):
+class IngestionManager(six.with_metaclass(abc.ABCMeta)):
   """A manager responsible for executing customer code.
 
   This name of this manager comes from its responsibility to pass successive
   values from the other side of the operation into the code of the local
   customer.
   """
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def set_group_and_method(self, group, method):
@@ -294,9 +290,8 @@
     raise NotImplementedError()
 
 
-class ReceptionManager(object):
+class ReceptionManager(six.with_metaclass(abc.ABCMeta)):
   """A manager responsible for receiving tickets from the other end."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def receive_ticket(self, ticket):
@@ -308,7 +303,7 @@
     raise NotImplementedError()
 
 
-class Operation(object):
+class Operation(six.with_metaclass(abc.ABCMeta)):
   """An ongoing operation.
 
   Attributes:
@@ -316,7 +311,6 @@
     operator: A base.Operator object for the operation for use by the customer
       of the operation.
   """
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def handle_ticket(self, ticket):
diff --git a/src/python/grpcio/grpc/framework/core/_termination.py b/src/python/grpcio/grpc/framework/core/_termination.py
index 364158b..e8c4ec6 100644
--- a/src/python/grpcio/grpc/framework/core/_termination.py
+++ b/src/python/grpcio/grpc/framework/core/_termination.py
@@ -31,6 +31,8 @@
 
 import abc
 
+import six
+
 from grpc.framework.core import _constants
 from grpc.framework.core import _interfaces
 from grpc.framework.core import _utilities
@@ -50,9 +52,8 @@
   return transmission_complete and ingestion_complete
 
 
-class TerminationManager(_interfaces.TerminationManager):
+class TerminationManager(six.with_metaclass(abc.ABCMeta, _interfaces.TerminationManager)):
   """A _interfaces.TransmissionManager on which another manager may be set."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def set_expiration_manager(self, expiration_manager):
diff --git a/src/python/grpcio/grpc/framework/crust/_control.py b/src/python/grpcio/grpc/framework/crust/_control.py
index 5e9efdf..c27fc91 100644
--- a/src/python/grpcio/grpc/framework/crust/_control.py
+++ b/src/python/grpcio/grpc/framework/crust/_control.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -405,6 +405,9 @@
   def __iter__(self):
     return self
 
+  def __next__(self):
+    return self.next()
+
   def next(self):
     with self._condition:
       while True:
diff --git a/src/python/grpcio/grpc/framework/crust/implementations.py b/src/python/grpcio/grpc/framework/crust/implementations.py
index 4ebc4e9..d0ecafc 100644
--- a/src/python/grpcio/grpc/framework/crust/implementations.py
+++ b/src/python/grpcio/grpc/framework/crust/implementations.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -29,6 +29,8 @@
 
 """Entry points into the Crust layer of RPC Framework."""
 
+import six
+
 from grpc.framework.common import cardinality
 from grpc.framework.common import style
 from grpc.framework.crust import _calls
@@ -271,7 +273,7 @@
 
 def _adapt_method_implementations(method_implementations, pool):
   adapted_implementations = {}
-  for name, method_implementation in method_implementations.iteritems():
+  for name, method_implementation in six.iteritems(method_implementations):
     if method_implementation.style is style.Service.INLINE:
       if method_implementation.cardinality is cardinality.Cardinality.UNARY_UNARY:
         adapted_implementations[name] = _service.adapt_inline_unary_unary(
diff --git a/src/python/grpcio/grpc/framework/face/_control.py b/src/python/grpcio/grpc/framework/face/_control.py
index e918907..ec43203 100644
--- a/src/python/grpcio/grpc/framework/face/_control.py
+++ b/src/python/grpcio/grpc/framework/face/_control.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -120,6 +120,9 @@
   def __iter__(self):
     return self
 
+  def __next__(self):
+    return self.next()
+
   def next(self):
     with self._condition:
       while ((self._abortion is None) and
diff --git a/src/python/grpcio/grpc/framework/face/exceptions.py b/src/python/grpcio/grpc/framework/face/exceptions.py
index f112df7..c272ac7 100644
--- a/src/python/grpcio/grpc/framework/face/exceptions.py
+++ b/src/python/grpcio/grpc/framework/face/exceptions.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -31,6 +31,8 @@
 
 import abc
 
+import six
+
 
 class NoSuchMethodError(Exception):
   """Raised by customer code to indicate an unrecognized RPC method name.
@@ -49,12 +51,11 @@
     self.name = name
 
 
-class RpcError(Exception):
+class RpcError(six.with_metaclass(abc.ABCMeta, Exception)):
   """Common super type for all exceptions raised by the Face layer.
 
   Only RPC Framework should instantiate and raise these exceptions.
   """
-  __metaclass__ = abc.ABCMeta
 
 
 class CancellationError(RpcError):
diff --git a/src/python/grpcio/grpc/framework/face/implementations.py b/src/python/grpcio/grpc/framework/face/implementations.py
index 4a6de52..9c75a5f 100644
--- a/src/python/grpcio/grpc/framework/face/implementations.py
+++ b/src/python/grpcio/grpc/framework/face/implementations.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -29,6 +29,8 @@
 
 """Entry points into the Face layer of RPC Framework."""
 
+import six
+
 from grpc.framework.common import cardinality
 from grpc.framework.common import style
 from grpc.framework.base import exceptions as _base_exceptions
@@ -228,7 +230,7 @@
 
 def _adapt_method_implementations(method_implementations, pool):
   adapted_implementations = {}
-  for name, method_implementation in method_implementations.iteritems():
+  for name, method_implementation in six.iteritems(method_implementations):
     if method_implementation.style is style.Service.INLINE:
       if method_implementation.cardinality is cardinality.Cardinality.UNARY_UNARY:
         adapted_implementations[name] = _service.adapt_inline_value_in_value_out(
diff --git a/src/python/grpcio/grpc/framework/face/interfaces.py b/src/python/grpcio/grpc/framework/face/interfaces.py
index b7cc4c1..9fc18d7 100644
--- a/src/python/grpcio/grpc/framework/face/interfaces.py
+++ b/src/python/grpcio/grpc/framework/face/interfaces.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -32,6 +32,8 @@
 import abc
 import enum
 
+import six
+
 # cardinality, style, exceptions, abandonment, future, and stream are
 # referenced from specification in this module.
 from grpc.framework.common import cardinality  # pylint: disable=unused-import
@@ -52,15 +54,17 @@
   SERVICER_FAILURE = 'servicer failure'
 
 
-class CancellableIterator(object):
+class CancellableIterator(six.with_metaclass(abc.ABCMeta)):
   """Implements the Iterator protocol and affords a cancel method."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def __iter__(self):
     """Returns the self object in accordance with the Iterator protocol."""
     raise NotImplementedError()
 
+  def __next__(self):
+    return self.next()
+
   @abc.abstractmethod
   def next(self):
     """Returns a value or raises StopIteration per the Iterator protocol."""
@@ -72,9 +76,8 @@
     raise NotImplementedError()
 
 
-class RpcContext(object):
+class RpcContext(six.with_metaclass(abc.ABCMeta)):
   """Provides RPC-related information and action."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def is_active(self):
@@ -103,13 +106,12 @@
     raise NotImplementedError()
 
 
-class Call(object):
+class Call(six.with_metaclass(abc.ABCMeta)):
   """Invocation-side representation of an RPC.
 
   Attributes:
     context: An RpcContext affording information about the RPC.
   """
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def cancel(self):
@@ -117,9 +119,8 @@
     raise NotImplementedError()
 
 
-class UnaryUnaryMultiCallable(object):
+class UnaryUnaryMultiCallable(six.with_metaclass(abc.ABCMeta)):
   """Affords invoking a unary-unary RPC in any call style."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def __call__(self, request, timeout):
@@ -171,9 +172,8 @@
     raise NotImplementedError()
 
 
-class UnaryStreamMultiCallable(object):
+class UnaryStreamMultiCallable(six.with_metaclass(abc.ABCMeta)):
   """Affords invoking a unary-stream RPC in any call style."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def __call__(self, request, timeout):
@@ -209,9 +209,8 @@
     raise NotImplementedError()
 
 
-class StreamUnaryMultiCallable(object):
+class StreamUnaryMultiCallable(six.with_metaclass(abc.ABCMeta)):
   """Affords invoking a stream-unary RPC in any call style."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def __call__(self, request_iterator, timeout):
@@ -264,9 +263,8 @@
     raise NotImplementedError()
 
 
-class StreamStreamMultiCallable(object):
+class StreamStreamMultiCallable(six.with_metaclass(abc.ABCMeta)):
   """Affords invoking a stream-stream RPC in any call style."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def __call__(self, request_iterator, timeout):
@@ -302,7 +300,7 @@
     raise NotImplementedError()
 
 
-class MethodImplementation(object):
+class MethodImplementation(six.with_metaclass(abc.ABCMeta)):
   """A sum type that describes an RPC method implementation.
 
   Attributes:
@@ -347,12 +345,10 @@
       is cardinality.Cardinality.STREAM_STREAM and style is
       style.Service.EVENT.
   """
-  __metaclass__ = abc.ABCMeta
 
 
-class MultiMethodImplementation(object):
+class MultiMethodImplementation(six.with_metaclass(abc.ABCMeta)):
   """A general type able to service many RPC methods."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def service(self, name, response_consumer, context):
@@ -381,9 +377,8 @@
     raise NotImplementedError()
 
 
-class GenericStub(object):
+class GenericStub(six.with_metaclass(abc.ABCMeta)):
   """Affords RPC methods to callers."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def blocking_value_in_value_out(self, name, request, timeout):
@@ -622,7 +617,7 @@
     raise NotImplementedError()
 
 
-class DynamicStub(object):
+class DynamicStub(six.with_metaclass(abc.ABCMeta)):
   """A stub with RPC-method-bound multi-callable attributes.
 
   Instances of this type responsd to attribute access as follows: if the
@@ -637,4 +632,3 @@
   the attribute will be a StreamStreamMultiCallable with which to invoke the
   RPC method.
   """
-  __metaclass__ = abc.ABCMeta
diff --git a/src/python/grpcio/grpc/framework/foundation/activated.py b/src/python/grpcio/grpc/framework/foundation/activated.py
index 426a71c..9b49b63 100644
--- a/src/python/grpcio/grpc/framework/foundation/activated.py
+++ b/src/python/grpcio/grpc/framework/foundation/activated.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -31,14 +31,14 @@
 
 import abc
 
+import six
 
-class Activated(object):
+class Activated(six.with_metaclass(abc.ABCMeta)):
   """Interface for objects that may be started and stopped.
 
   Values implementing this type must also implement the context manager
   protocol.
   """
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def __enter__(self):
diff --git a/src/python/grpcio/grpc/framework/foundation/callable_util.py b/src/python/grpcio/grpc/framework/foundation/callable_util.py
index 32b0751..e0a4cab 100644
--- a/src/python/grpcio/grpc/framework/foundation/callable_util.py
+++ b/src/python/grpcio/grpc/framework/foundation/callable_util.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -35,8 +35,10 @@
 import functools
 import logging
 
+import six
 
-class Outcome(object):
+
+class Outcome(six.with_metaclass(abc.ABCMeta)):
   """A sum type describing the outcome of some call.
 
   Attributes:
@@ -47,7 +49,6 @@
     exception: The exception raised by the call. Must be present if kind is
       Kind.RAISED.
   """
-  __metaclass__ = abc.ABCMeta
 
   @enum.unique
   class Kind(enum.Enum):
diff --git a/src/python/grpcio/grpc/framework/foundation/future.py b/src/python/grpcio/grpc/framework/foundation/future.py
index bfc16fc..bb8ee3a 100644
--- a/src/python/grpcio/grpc/framework/foundation/future.py
+++ b/src/python/grpcio/grpc/framework/foundation/future.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -49,6 +49,8 @@
 
 import abc
 
+import six
+
 
 class TimeoutError(Exception):
   """Indicates that a particular call timed out."""
@@ -58,13 +60,12 @@
   """Indicates that the computation underlying a Future was cancelled."""
 
 
-class Future(object):
+class Future(six.with_metaclass(abc.ABCMeta)):
   """A representation of a computation in another control flow.
 
   Computations represented by a Future may be yet to be begun, may be ongoing,
   or may have already completed.
   """
-  __metaclass__ = abc.ABCMeta
 
   # NOTE(nathaniel): This isn't the return type that I would want to have if it
   # were up to me. Were this interface being written from scratch, the return
diff --git a/src/python/grpcio/grpc/framework/foundation/relay.py b/src/python/grpcio/grpc/framework/foundation/relay.py
index 9c23946..ff4e227 100644
--- a/src/python/grpcio/grpc/framework/foundation/relay.py
+++ b/src/python/grpcio/grpc/framework/foundation/relay.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -46,7 +46,6 @@
   would be no reason to use an implementation of this interface instead of a
   thread pool.
   """
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def add_value(self, value):
diff --git a/src/python/grpcio/grpc/framework/foundation/stream.py b/src/python/grpcio/grpc/framework/foundation/stream.py
index 75c0cf1..32a2e52 100644
--- a/src/python/grpcio/grpc/framework/foundation/stream.py
+++ b/src/python/grpcio/grpc/framework/foundation/stream.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -31,10 +31,10 @@
 
 import abc
 
+import six
 
-class Consumer(object):
+class Consumer(six.with_metaclass(abc.ABCMeta)):
   """Interface for consumers of finite streams of values or objects."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def consume(self, value):
diff --git a/src/python/grpcio/grpc/framework/foundation/stream_util.py b/src/python/grpcio/grpc/framework/foundation/stream_util.py
index 2210e4e..7d5977f 100644
--- a/src/python/grpcio/grpc/framework/foundation/stream_util.py
+++ b/src/python/grpcio/grpc/framework/foundation/stream_util.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -83,6 +83,9 @@
   def __iter__(self):
     return self
 
+  def __next__(self):
+    return self.next()
+
   def next(self):
     with self._condition:
       while self._active and not self._values:
diff --git a/src/python/grpcio/grpc/framework/interfaces/base/base.py b/src/python/grpcio/grpc/framework/interfaces/base/base.py
index a1e70be..69be37e 100644
--- a/src/python/grpcio/grpc/framework/interfaces/base/base.py
+++ b/src/python/grpcio/grpc/framework/interfaces/base/base.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -42,6 +42,8 @@
 import enum
 import threading  # pylint: disable=unused-import
 
+import six
+
 # abandonment is referenced from specification in this module.
 from grpc.framework.foundation import abandonment  # pylint: disable=unused-import
 
@@ -95,7 +97,7 @@
     REMOTE_FAILURE = 'remote failure'
 
 
-class Completion(object):
+class Completion(six.with_metaclass(abc.ABCMeta)):
   """An aggregate of the values exchanged upon operation completion.
 
   Attributes:
@@ -103,12 +105,10 @@
     code: A code value for the operation.
     message: A message value for the operation.
   """
-  __metaclass__ = abc.ABCMeta
 
 
-class OperationContext(object):
+class OperationContext(six.with_metaclass(abc.ABCMeta)):
   """Provides operation-related information and action."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def outcome(self):
@@ -162,9 +162,8 @@
     raise NotImplementedError()
 
 
-class Operator(object):
+class Operator(six.with_metaclass(abc.ABCMeta)):
   """An interface through which to participate in an operation."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def advance(
@@ -184,9 +183,8 @@
     """
     raise NotImplementedError()
 
-class ProtocolReceiver(object):
+class ProtocolReceiver(six.with_metaclass(abc.ABCMeta)):
   """A means of receiving protocol values during an operation."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def context(self, protocol_context):
@@ -198,7 +196,7 @@
     raise NotImplementedError()
 
 
-class Subscription(object):
+class Subscription(six.with_metaclass(abc.ABCMeta)):
   """Describes customer code's interest in values from the other side.
 
   Attributes:
@@ -216,7 +214,6 @@
       become available during the operation. Must be non-None if kind is
       Kind.FULL.
   """
-  __metaclass__ = abc.ABCMeta
 
   @enum.unique
   class Kind(enum.Enum):
@@ -226,9 +223,8 @@
     FULL = 'full'
 
 
-class Servicer(object):
+class Servicer(six.with_metaclass(abc.ABCMeta)):
   """Interface for service implementations."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def service(self, group, method, context, output_operator):
@@ -255,9 +251,8 @@
     raise NotImplementedError()
 
 
-class End(object):
+class End(six.with_metaclass(abc.ABCMeta)):
   """Common type for entry-point objects on both sides of an operation."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def start(self):
diff --git a/src/python/grpcio/grpc/framework/interfaces/face/face.py b/src/python/grpcio/grpc/framework/interfaces/face/face.py
index 404c3a7..b994ace 100644
--- a/src/python/grpcio/grpc/framework/interfaces/face/face.py
+++ b/src/python/grpcio/grpc/framework/interfaces/face/face.py
@@ -33,6 +33,8 @@
 import collections
 import enum
 
+import six
+
 # cardinality, style, abandonment, future, and stream are
 # referenced from specification in this module.
 from grpc.framework.common import cardinality  # pylint: disable=unused-import
@@ -96,7 +98,7 @@
     REMOTE_FAILURE = 'remote failure'
 
 
-class AbortionError(Exception):
+class AbortionError(six.with_metaclass(abc.ABCMeta, Exception)):
   """Common super type for exceptions indicating RPC abortion.
 
     initial_metadata: The initial metadata from the other side of the RPC or
@@ -108,7 +110,6 @@
     details: The details value from the other side of the RPC or None if no
       details value was received.
   """
-  __metaclass__ = abc.ABCMeta
 
   def __init__(self, initial_metadata, terminal_metadata, code, details):
     super(AbortionError, self).__init__()
@@ -150,9 +151,8 @@
   """Indicates that an RPC has terminated due to a remote defect."""
 
 
-class RpcContext(object):
+class RpcContext(six.with_metaclass(abc.ABCMeta)):
   """Provides RPC-related information and action."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def is_active(self):
@@ -199,9 +199,8 @@
     raise NotImplementedError()
 
 
-class Call(RpcContext):
+class Call(six.with_metaclass(abc.ABCMeta, RpcContext)):
   """Invocation-side utility object for an RPC."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def initial_metadata(self):
@@ -256,9 +255,8 @@
     raise NotImplementedError()
 
 
-class ServicerContext(RpcContext):
+class ServicerContext(six.with_metaclass(abc.ABCMeta, RpcContext)):
   """A context object passed to method implementations."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def invocation_metadata(self):
@@ -326,9 +324,8 @@
     raise NotImplementedError()
 
 
-class ResponseReceiver(object):
+class ResponseReceiver(six.with_metaclass(abc.ABCMeta)):
   """Invocation-side object used to accept the output of an RPC."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def initial_metadata(self, initial_metadata):
@@ -362,9 +359,8 @@
     raise NotImplementedError()
 
 
-class UnaryUnaryMultiCallable(object):
+class UnaryUnaryMultiCallable(six.with_metaclass(abc.ABCMeta)):
   """Affords invoking a unary-unary RPC in any call style."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def __call__(
@@ -434,9 +430,8 @@
     raise NotImplementedError()
 
 
-class UnaryStreamMultiCallable(object):
+class UnaryStreamMultiCallable(six.with_metaclass(abc.ABCMeta)):
   """Affords invoking a unary-stream RPC in any call style."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def __call__(self, request, timeout, metadata=None, protocol_options=None):
@@ -480,9 +475,8 @@
     raise NotImplementedError()
 
 
-class StreamUnaryMultiCallable(object):
+class StreamUnaryMultiCallable(six.with_metaclass(abc.ABCMeta)):
   """Affords invoking a stream-unary RPC in any call style."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def __call__(
@@ -553,9 +547,8 @@
     raise NotImplementedError()
 
 
-class StreamStreamMultiCallable(object):
+class StreamStreamMultiCallable(six.with_metaclass(abc.ABCMeta)):
   """Affords invoking a stream-stream RPC in any call style."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def __call__(
@@ -600,7 +593,7 @@
     raise NotImplementedError()
 
 
-class MethodImplementation(object):
+class MethodImplementation(six.with_metaclass(abc.ABCMeta)):
   """A sum type that describes a method implementation.
 
   Attributes:
@@ -643,12 +636,10 @@
       is cardinality.Cardinality.STREAM_STREAM and style is
       style.Service.EVENT.
   """
-  __metaclass__ = abc.ABCMeta
 
 
-class MultiMethodImplementation(object):
+class MultiMethodImplementation(six.with_metaclass(abc.ABCMeta)):
   """A general type able to service many methods."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def service(self, group, method, response_consumer, context):
@@ -678,9 +669,8 @@
     raise NotImplementedError()
 
 
-class GenericStub(object):
+class GenericStub(six.with_metaclass(abc.ABCMeta)):
   """Affords RPC invocation via generic methods."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def blocking_unary_unary(
@@ -977,7 +967,7 @@
     raise NotImplementedError()
 
 
-class DynamicStub(object):
+class DynamicStub(six.with_metaclass(abc.ABCMeta)):
   """Affords RPC invocation via attributes corresponding to afforded methods.
 
   Instances of this type may be scoped to a single group so that attribute
@@ -993,4 +983,3 @@
   if the requested attribute is the name of a stream-stream method, the value of
   the attribute will be a StreamStreamMultiCallable with which to invoke an RPC.
   """
-  __metaclass__ = abc.ABCMeta
diff --git a/src/python/grpcio/grpc/framework/interfaces/links/links.py b/src/python/grpcio/grpc/framework/interfaces/links/links.py
index 24f0e3b..8081679 100644
--- a/src/python/grpcio/grpc/framework/interfaces/links/links.py
+++ b/src/python/grpcio/grpc/framework/interfaces/links/links.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -33,6 +33,8 @@
 import collections
 import enum
 
+import six
+
 
 class Protocol(collections.namedtuple('Protocol', ('kind', 'value',))):
   """A sum type for handles to a system that transmits tickets.
@@ -123,9 +125,8 @@
     REMOTE_FAILURE = 'remote failure'
 
 
-class Link(object):
+class Link(six.with_metaclass(abc.ABCMeta)):
   """Accepts and emits tickets."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def accept_ticket(self, ticket):
diff --git a/src/python/grpcio/grpc_core_dependencies.py b/src/python/grpcio/grpc_core_dependencies.py
index 14816b8..bdf5726 100644
--- a/src/python/grpcio/grpc_core_dependencies.py
+++ b/src/python/grpcio/grpc_core_dependencies.py
@@ -30,207 +30,208 @@
 # AUTO-GENERATED FROM `$REPO_ROOT/templates/src/python/grpcio/grpc_core_dependencies.py.template`!!!
 
 CORE_SOURCE_FILES = [
-  'src/core/profiling/basic_timers.c',
-  'src/core/profiling/stap_timers.c',
-  'src/core/support/alloc.c',
-  'src/core/support/avl.c',
-  'src/core/support/backoff.c',
-  'src/core/support/cmdline.c',
-  'src/core/support/cpu_iphone.c',
-  'src/core/support/cpu_linux.c',
-  'src/core/support/cpu_posix.c',
-  'src/core/support/cpu_windows.c',
-  'src/core/support/env_linux.c',
-  'src/core/support/env_posix.c',
-  'src/core/support/env_win32.c',
-  'src/core/support/histogram.c',
-  'src/core/support/host_port.c',
-  'src/core/support/load_file.c',
-  'src/core/support/log.c',
-  'src/core/support/log_android.c',
-  'src/core/support/log_linux.c',
-  'src/core/support/log_posix.c',
-  'src/core/support/log_win32.c',
-  'src/core/support/murmur_hash.c',
-  'src/core/support/slice.c',
-  'src/core/support/slice_buffer.c',
-  'src/core/support/stack_lockfree.c',
-  'src/core/support/string.c',
-  'src/core/support/string_posix.c',
-  'src/core/support/string_win32.c',
-  'src/core/support/subprocess_posix.c',
-  'src/core/support/subprocess_windows.c',
-  'src/core/support/sync.c',
-  'src/core/support/sync_posix.c',
-  'src/core/support/sync_win32.c',
-  'src/core/support/thd.c',
-  'src/core/support/thd_posix.c',
-  'src/core/support/thd_win32.c',
-  'src/core/support/time.c',
-  'src/core/support/time_posix.c',
-  'src/core/support/time_precise.c',
-  'src/core/support/time_win32.c',
-  'src/core/support/tls_pthread.c',
-  'src/core/support/tmpfile_posix.c',
-  'src/core/support/tmpfile_win32.c',
-  'src/core/support/wrap_memcpy.c',
-  'src/core/census/grpc_context.c',
-  'src/core/census/grpc_filter.c',
-  'src/core/census/grpc_plugin.c',
-  'src/core/channel/channel_args.c',
-  'src/core/channel/channel_stack.c',
-  'src/core/channel/channel_stack_builder.c',
-  'src/core/channel/client_channel.c',
-  'src/core/channel/client_uchannel.c',
-  'src/core/channel/compress_filter.c',
-  'src/core/channel/connected_channel.c',
-  'src/core/channel/http_client_filter.c',
-  'src/core/channel/http_server_filter.c',
-  'src/core/channel/subchannel_call_holder.c',
-  'src/core/client_config/client_config.c',
-  'src/core/client_config/connector.c',
-  'src/core/client_config/default_initial_connect_string.c',
-  'src/core/client_config/initial_connect_string.c',
-  'src/core/client_config/lb_policies/load_balancer_api.c',
-  'src/core/client_config/lb_policies/pick_first.c',
-  'src/core/client_config/lb_policies/round_robin.c',
-  'src/core/client_config/lb_policy.c',
-  'src/core/client_config/lb_policy_factory.c',
-  'src/core/client_config/lb_policy_registry.c',
-  'src/core/client_config/resolver.c',
-  'src/core/client_config/resolver_factory.c',
-  'src/core/client_config/resolver_registry.c',
-  'src/core/client_config/resolvers/dns_resolver.c',
-  'src/core/client_config/resolvers/sockaddr_resolver.c',
-  'src/core/client_config/subchannel.c',
-  'src/core/client_config/subchannel_factory.c',
-  'src/core/client_config/subchannel_index.c',
-  'src/core/client_config/uri_parser.c',
-  'src/core/compression/compression_algorithm.c',
-  'src/core/compression/message_compress.c',
-  'src/core/debug/trace.c',
-  'src/core/httpcli/format_request.c',
-  'src/core/httpcli/httpcli.c',
-  'src/core/httpcli/parser.c',
-  'src/core/iomgr/closure.c',
-  'src/core/iomgr/endpoint.c',
-  'src/core/iomgr/endpoint_pair_posix.c',
-  'src/core/iomgr/endpoint_pair_windows.c',
-  'src/core/iomgr/ev_poll_and_epoll_posix.c',
-  'src/core/iomgr/ev_posix.c',
-  'src/core/iomgr/exec_ctx.c',
-  'src/core/iomgr/executor.c',
-  'src/core/iomgr/iocp_windows.c',
-  'src/core/iomgr/iomgr.c',
-  'src/core/iomgr/iomgr_posix.c',
-  'src/core/iomgr/iomgr_windows.c',
-  'src/core/iomgr/pollset_set_windows.c',
-  'src/core/iomgr/pollset_windows.c',
-  'src/core/iomgr/resolve_address_posix.c',
-  'src/core/iomgr/resolve_address_windows.c',
-  'src/core/iomgr/sockaddr_utils.c',
-  'src/core/iomgr/socket_utils_common_posix.c',
-  'src/core/iomgr/socket_utils_linux.c',
-  'src/core/iomgr/socket_utils_posix.c',
-  'src/core/iomgr/socket_windows.c',
-  'src/core/iomgr/tcp_client_posix.c',
-  'src/core/iomgr/tcp_client_windows.c',
-  'src/core/iomgr/tcp_posix.c',
-  'src/core/iomgr/tcp_server_posix.c',
-  'src/core/iomgr/tcp_server_windows.c',
-  'src/core/iomgr/tcp_windows.c',
-  'src/core/iomgr/time_averaged_stats.c',
-  'src/core/iomgr/timer.c',
-  'src/core/iomgr/timer_heap.c',
-  'src/core/iomgr/udp_server.c',
-  'src/core/iomgr/wakeup_fd_eventfd.c',
-  'src/core/iomgr/wakeup_fd_nospecial.c',
-  'src/core/iomgr/wakeup_fd_pipe.c',
-  'src/core/iomgr/wakeup_fd_posix.c',
-  'src/core/iomgr/workqueue_posix.c',
-  'src/core/iomgr/workqueue_windows.c',
-  'src/core/json/json.c',
-  'src/core/json/json_reader.c',
-  'src/core/json/json_string.c',
-  'src/core/json/json_writer.c',
-  'src/core/proto/grpc/lb/v0/load_balancer.pb.c',
-  'src/core/surface/alarm.c',
-  'src/core/surface/api_trace.c',
-  'src/core/surface/byte_buffer.c',
-  'src/core/surface/byte_buffer_reader.c',
-  'src/core/surface/call.c',
-  'src/core/surface/call_details.c',
-  'src/core/surface/call_log_batch.c',
-  'src/core/surface/channel.c',
-  'src/core/surface/channel_connectivity.c',
-  'src/core/surface/channel_create.c',
-  'src/core/surface/channel_init.c',
-  'src/core/surface/channel_ping.c',
-  'src/core/surface/channel_stack_type.c',
-  'src/core/surface/completion_queue.c',
-  'src/core/surface/event_string.c',
-  'src/core/surface/init.c',
-  'src/core/surface/lame_client.c',
-  'src/core/surface/metadata_array.c',
-  'src/core/surface/server.c',
-  'src/core/surface/server_chttp2.c',
-  'src/core/surface/validate_metadata.c',
-  'src/core/surface/version.c',
-  'src/core/transport/byte_stream.c',
-  'src/core/transport/chttp2/alpn.c',
-  'src/core/transport/chttp2/bin_encoder.c',
-  'src/core/transport/chttp2/frame_data.c',
-  'src/core/transport/chttp2/frame_goaway.c',
-  'src/core/transport/chttp2/frame_ping.c',
-  'src/core/transport/chttp2/frame_rst_stream.c',
-  'src/core/transport/chttp2/frame_settings.c',
-  'src/core/transport/chttp2/frame_window_update.c',
-  'src/core/transport/chttp2/hpack_encoder.c',
-  'src/core/transport/chttp2/hpack_parser.c',
-  'src/core/transport/chttp2/hpack_table.c',
-  'src/core/transport/chttp2/huffsyms.c',
-  'src/core/transport/chttp2/incoming_metadata.c',
-  'src/core/transport/chttp2/parsing.c',
-  'src/core/transport/chttp2/status_conversion.c',
-  'src/core/transport/chttp2/stream_lists.c',
-  'src/core/transport/chttp2/stream_map.c',
-  'src/core/transport/chttp2/timeout_encoding.c',
-  'src/core/transport/chttp2/varint.c',
-  'src/core/transport/chttp2/writing.c',
-  'src/core/transport/chttp2_transport.c',
-  'src/core/transport/connectivity_state.c',
-  'src/core/transport/metadata.c',
-  'src/core/transport/metadata_batch.c',
-  'src/core/transport/static_metadata.c',
-  'src/core/transport/transport.c',
-  'src/core/transport/transport_op_string.c',
-  'src/core/httpcli/httpcli_security_connector.c',
-  'src/core/security/b64.c',
-  'src/core/security/client_auth_filter.c',
-  'src/core/security/credentials.c',
-  'src/core/security/credentials_metadata.c',
-  'src/core/security/credentials_posix.c',
-  'src/core/security/credentials_win32.c',
-  'src/core/security/google_default_credentials.c',
-  'src/core/security/handshake.c',
-  'src/core/security/json_token.c',
-  'src/core/security/jwt_verifier.c',
-  'src/core/security/secure_endpoint.c',
-  'src/core/security/security_connector.c',
-  'src/core/security/security_context.c',
-  'src/core/security/server_auth_filter.c',
-  'src/core/security/server_secure_chttp2.c',
-  'src/core/surface/init_secure.c',
-  'src/core/surface/secure_channel_create.c',
-  'src/core/tsi/fake_transport_security.c',
-  'src/core/tsi/ssl_transport_security.c',
-  'src/core/tsi/transport_security.c',
-  'src/core/census/context.c',
-  'src/core/census/initialize.c',
-  'src/core/census/mlog.c',
-  'src/core/census/operation.c',
-  'src/core/census/placeholders.c',
-  'src/core/census/tracing.c',
+  'src/core/lib/profiling/basic_timers.c',
+  'src/core/lib/profiling/stap_timers.c',
+  'src/core/lib/support/alloc.c',
+  'src/core/lib/support/avl.c',
+  'src/core/lib/support/backoff.c',
+  'src/core/lib/support/cmdline.c',
+  'src/core/lib/support/cpu_iphone.c',
+  'src/core/lib/support/cpu_linux.c',
+  'src/core/lib/support/cpu_posix.c',
+  'src/core/lib/support/cpu_windows.c',
+  'src/core/lib/support/env_linux.c',
+  'src/core/lib/support/env_posix.c',
+  'src/core/lib/support/env_win32.c',
+  'src/core/lib/support/histogram.c',
+  'src/core/lib/support/host_port.c',
+  'src/core/lib/support/load_file.c',
+  'src/core/lib/support/log.c',
+  'src/core/lib/support/log_android.c',
+  'src/core/lib/support/log_linux.c',
+  'src/core/lib/support/log_posix.c',
+  'src/core/lib/support/log_win32.c',
+  'src/core/lib/support/murmur_hash.c',
+  'src/core/lib/support/slice.c',
+  'src/core/lib/support/slice_buffer.c',
+  'src/core/lib/support/stack_lockfree.c',
+  'src/core/lib/support/string.c',
+  'src/core/lib/support/string_posix.c',
+  'src/core/lib/support/string_win32.c',
+  'src/core/lib/support/subprocess_posix.c',
+  'src/core/lib/support/subprocess_windows.c',
+  'src/core/lib/support/sync.c',
+  'src/core/lib/support/sync_posix.c',
+  'src/core/lib/support/sync_win32.c',
+  'src/core/lib/support/thd.c',
+  'src/core/lib/support/thd_posix.c',
+  'src/core/lib/support/thd_win32.c',
+  'src/core/lib/support/time.c',
+  'src/core/lib/support/time_posix.c',
+  'src/core/lib/support/time_precise.c',
+  'src/core/lib/support/time_win32.c',
+  'src/core/lib/support/tls_pthread.c',
+  'src/core/lib/support/tmpfile_posix.c',
+  'src/core/lib/support/tmpfile_win32.c',
+  'src/core/lib/support/wrap_memcpy.c',
+  'src/core/lib/census/grpc_context.c',
+  'src/core/lib/census/grpc_filter.c',
+  'src/core/lib/census/grpc_plugin.c',
+  'src/core/lib/channel/channel_args.c',
+  'src/core/lib/channel/channel_stack.c',
+  'src/core/lib/channel/channel_stack_builder.c',
+  'src/core/lib/channel/client_channel.c',
+  'src/core/lib/channel/compress_filter.c',
+  'src/core/lib/channel/connected_channel.c',
+  'src/core/lib/channel/http_client_filter.c',
+  'src/core/lib/channel/http_server_filter.c',
+  'src/core/lib/channel/subchannel_call_holder.c',
+  'src/core/lib/client_config/client_config.c',
+  'src/core/lib/client_config/connector.c',
+  'src/core/lib/client_config/default_initial_connect_string.c',
+  'src/core/lib/client_config/initial_connect_string.c',
+  'src/core/lib/client_config/lb_policies/load_balancer_api.c',
+  'src/core/lib/client_config/lb_policies/pick_first.c',
+  'src/core/lib/client_config/lb_policies/round_robin.c',
+  'src/core/lib/client_config/lb_policy.c',
+  'src/core/lib/client_config/lb_policy_factory.c',
+  'src/core/lib/client_config/lb_policy_registry.c',
+  'src/core/lib/client_config/resolver.c',
+  'src/core/lib/client_config/resolver_factory.c',
+  'src/core/lib/client_config/resolver_registry.c',
+  'src/core/lib/client_config/resolvers/dns_resolver.c',
+  'src/core/lib/client_config/resolvers/sockaddr_resolver.c',
+  'src/core/lib/client_config/subchannel.c',
+  'src/core/lib/client_config/subchannel_factory.c',
+  'src/core/lib/client_config/subchannel_index.c',
+  'src/core/lib/client_config/uri_parser.c',
+  'src/core/lib/compression/compression_algorithm.c',
+  'src/core/lib/compression/message_compress.c',
+  'src/core/lib/debug/trace.c',
+  'src/core/lib/http/format_request.c',
+  'src/core/lib/http/httpcli.c',
+  'src/core/lib/http/parser.c',
+  'src/core/lib/iomgr/closure.c',
+  'src/core/lib/iomgr/endpoint.c',
+  'src/core/lib/iomgr/endpoint_pair_posix.c',
+  'src/core/lib/iomgr/endpoint_pair_windows.c',
+  'src/core/lib/iomgr/ev_poll_and_epoll_posix.c',
+  'src/core/lib/iomgr/ev_posix.c',
+  'src/core/lib/iomgr/exec_ctx.c',
+  'src/core/lib/iomgr/executor.c',
+  'src/core/lib/iomgr/iocp_windows.c',
+  'src/core/lib/iomgr/iomgr.c',
+  'src/core/lib/iomgr/iomgr_posix.c',
+  'src/core/lib/iomgr/iomgr_windows.c',
+  'src/core/lib/iomgr/pollset_set_windows.c',
+  'src/core/lib/iomgr/pollset_windows.c',
+  'src/core/lib/iomgr/resolve_address_posix.c',
+  'src/core/lib/iomgr/resolve_address_windows.c',
+  'src/core/lib/iomgr/sockaddr_utils.c',
+  'src/core/lib/iomgr/socket_utils_common_posix.c',
+  'src/core/lib/iomgr/socket_utils_linux.c',
+  'src/core/lib/iomgr/socket_utils_posix.c',
+  'src/core/lib/iomgr/socket_windows.c',
+  'src/core/lib/iomgr/tcp_client_posix.c',
+  'src/core/lib/iomgr/tcp_client_windows.c',
+  'src/core/lib/iomgr/tcp_posix.c',
+  'src/core/lib/iomgr/tcp_server_posix.c',
+  'src/core/lib/iomgr/tcp_server_windows.c',
+  'src/core/lib/iomgr/tcp_windows.c',
+  'src/core/lib/iomgr/time_averaged_stats.c',
+  'src/core/lib/iomgr/timer.c',
+  'src/core/lib/iomgr/timer_heap.c',
+  'src/core/lib/iomgr/udp_server.c',
+  'src/core/lib/iomgr/unix_sockets_posix.c',
+  'src/core/lib/iomgr/unix_sockets_posix_noop.c',
+  'src/core/lib/iomgr/wakeup_fd_eventfd.c',
+  'src/core/lib/iomgr/wakeup_fd_nospecial.c',
+  'src/core/lib/iomgr/wakeup_fd_pipe.c',
+  'src/core/lib/iomgr/wakeup_fd_posix.c',
+  'src/core/lib/iomgr/workqueue_posix.c',
+  'src/core/lib/iomgr/workqueue_windows.c',
+  'src/core/lib/json/json.c',
+  'src/core/lib/json/json_reader.c',
+  'src/core/lib/json/json_string.c',
+  'src/core/lib/json/json_writer.c',
+  'src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c',
+  'src/core/lib/surface/alarm.c',
+  'src/core/lib/surface/api_trace.c',
+  'src/core/lib/surface/byte_buffer.c',
+  'src/core/lib/surface/byte_buffer_reader.c',
+  'src/core/lib/surface/call.c',
+  'src/core/lib/surface/call_details.c',
+  'src/core/lib/surface/call_log_batch.c',
+  'src/core/lib/surface/channel.c',
+  'src/core/lib/surface/channel_connectivity.c',
+  'src/core/lib/surface/channel_create.c',
+  'src/core/lib/surface/channel_init.c',
+  'src/core/lib/surface/channel_ping.c',
+  'src/core/lib/surface/channel_stack_type.c',
+  'src/core/lib/surface/completion_queue.c',
+  'src/core/lib/surface/event_string.c',
+  'src/core/lib/surface/init.c',
+  'src/core/lib/surface/lame_client.c',
+  'src/core/lib/surface/metadata_array.c',
+  'src/core/lib/surface/server.c',
+  'src/core/lib/surface/server_chttp2.c',
+  'src/core/lib/surface/validate_metadata.c',
+  'src/core/lib/surface/version.c',
+  'src/core/lib/transport/byte_stream.c',
+  'src/core/lib/transport/chttp2/alpn.c',
+  'src/core/lib/transport/chttp2/bin_encoder.c',
+  'src/core/lib/transport/chttp2/frame_data.c',
+  'src/core/lib/transport/chttp2/frame_goaway.c',
+  'src/core/lib/transport/chttp2/frame_ping.c',
+  'src/core/lib/transport/chttp2/frame_rst_stream.c',
+  'src/core/lib/transport/chttp2/frame_settings.c',
+  'src/core/lib/transport/chttp2/frame_window_update.c',
+  'src/core/lib/transport/chttp2/hpack_encoder.c',
+  'src/core/lib/transport/chttp2/hpack_parser.c',
+  'src/core/lib/transport/chttp2/hpack_table.c',
+  'src/core/lib/transport/chttp2/huffsyms.c',
+  'src/core/lib/transport/chttp2/incoming_metadata.c',
+  'src/core/lib/transport/chttp2/parsing.c',
+  'src/core/lib/transport/chttp2/status_conversion.c',
+  'src/core/lib/transport/chttp2/stream_lists.c',
+  'src/core/lib/transport/chttp2/stream_map.c',
+  'src/core/lib/transport/chttp2/timeout_encoding.c',
+  'src/core/lib/transport/chttp2/varint.c',
+  'src/core/lib/transport/chttp2/writing.c',
+  'src/core/lib/transport/chttp2_transport.c',
+  'src/core/lib/transport/connectivity_state.c',
+  'src/core/lib/transport/metadata.c',
+  'src/core/lib/transport/metadata_batch.c',
+  'src/core/lib/transport/static_metadata.c',
+  'src/core/lib/transport/transport.c',
+  'src/core/lib/transport/transport_op_string.c',
+  'src/core/lib/http/httpcli_security_connector.c',
+  'src/core/lib/security/b64.c',
+  'src/core/lib/security/client_auth_filter.c',
+  'src/core/lib/security/credentials.c',
+  'src/core/lib/security/credentials_metadata.c',
+  'src/core/lib/security/credentials_posix.c',
+  'src/core/lib/security/credentials_win32.c',
+  'src/core/lib/security/google_default_credentials.c',
+  'src/core/lib/security/handshake.c',
+  'src/core/lib/security/json_token.c',
+  'src/core/lib/security/jwt_verifier.c',
+  'src/core/lib/security/secure_endpoint.c',
+  'src/core/lib/security/security_connector.c',
+  'src/core/lib/security/security_context.c',
+  'src/core/lib/security/server_auth_filter.c',
+  'src/core/lib/security/server_secure_chttp2.c',
+  'src/core/lib/surface/init_secure.c',
+  'src/core/lib/surface/secure_channel_create.c',
+  'src/core/lib/tsi/fake_transport_security.c',
+  'src/core/lib/tsi/ssl_transport_security.c',
+  'src/core/lib/tsi/transport_security.c',
+  'src/core/lib/census/context.c',
+  'src/core/lib/census/initialize.c',
+  'src/core/lib/census/mlog.c',
+  'src/core/lib/census/operation.c',
+  'src/core/lib/census/placeholders.c',
+  'src/core/lib/census/tracing.c',
   'third_party/nanopb/pb_common.c',
   'third_party/nanopb/pb_decode.c',
   'third_party/nanopb/pb_encode.c',
diff --git a/src/python/grpcio/tests/__init__.py b/src/python/grpcio/tests/__init__.py
index b76b398..c3b80d7 100644
--- a/src/python/grpcio/tests/__init__.py
+++ b/src/python/grpcio/tests/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -27,6 +27,8 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+from __future__ import absolute_import
+
 from tests import _loader
 from tests import _runner
 
diff --git a/src/python/grpcio/tests/_loader.py b/src/python/grpcio/tests/_loader.py
index 6992029..2f9e5c6 100644
--- a/src/python/grpcio/tests/_loader.py
+++ b/src/python/grpcio/tests/_loader.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -27,6 +27,8 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+from __future__ import absolute_import
+
 import importlib
 import pkgutil
 import re
diff --git a/src/python/grpcio/tests/_result.py b/src/python/grpcio/tests/_result.py
index 0670be9..18b0f43 100644
--- a/src/python/grpcio/tests/_result.py
+++ b/src/python/grpcio/tests/_result.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -27,7 +27,8 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-import cStringIO as StringIO
+from __future__ import absolute_import
+
 import collections
 import itertools
 import traceback
@@ -35,6 +36,7 @@
 from xml.etree import ElementTree
 
 import coverage
+from six import moves
 
 from tests import _loader
 
@@ -202,7 +204,7 @@
     """
     case_id = self.id_map(test)
     self.cases[case_id] = self.cases[case_id].updated(
-        stdout=stdout, stderr=stderr)
+        stdout=stdout.decode(), stderr=stderr.decode())
 
   def augmented_results(self, filter):
     """Convenience method to retrieve filtered case results.
@@ -356,7 +358,7 @@
   Returns:
     str: Formatted exception descriptive string.
   """
-  buffer = StringIO.StringIO()
+  buffer = moves.cStringIO()
   traceback.print_exception(type, value, trace, file=buffer)
   return buffer.getvalue()
 
diff --git a/src/python/grpcio/tests/_runner.py b/src/python/grpcio/tests/_runner.py
index 3b5ca03..173a170 100644
--- a/src/python/grpcio/tests/_runner.py
+++ b/src/python/grpcio/tests/_runner.py
@@ -27,7 +27,8 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-import cStringIO as StringIO
+from __future__ import absolute_import
+
 import collections
 import fcntl
 import multiprocessing
@@ -41,6 +42,9 @@
 import unittest
 import uuid
 
+import six
+from six import moves
+
 from tests import _loader
 from tests import _result
 
@@ -92,6 +96,8 @@
     Arguments:
       value (str): What to write to the original file.
     """
+    if six.PY3 and not isinstance(value, six.binary_type):
+      value = bytes(value, 'ascii')
     if self._saved_fd is None:
       os.write(self._redirect_fd, value)
     else:
@@ -143,7 +149,7 @@
                        for case in filtered_cases]
     case_id_by_case = dict((augmented_case.case, augmented_case.id)
                            for augmented_case in augmented_cases)
-    result_out = StringIO.StringIO()
+    result_out = moves.cStringIO()
     result = _result.TerminalResult(
         result_out, id_map=lambda case: case_id_by_case[case])
     stdout_pipe = CaptureFile(sys.stdout.fileno())
@@ -168,9 +174,9 @@
         result.stopTestRun()
         stdout_pipe.write_bypass(result_out.getvalue())
         stdout_pipe.write_bypass(
-            '\ninterrupted stdout:\n{}\n'.format(stdout_pipe.output()))
+            '\ninterrupted stdout:\n{}\n'.format(stdout_pipe.output().decode()))
         stderr_pipe.write_bypass(
-            '\ninterrupted stderr:\n{}\n'.format(stderr_pipe.output()))
+            '\ninterrupted stderr:\n{}\n'.format(stderr_pipe.output().decode()))
         os._exit(1)
     signal.signal(signal.SIGINT, sigint_handler)
     signal.signal(signal.SIGSEGV, fault_handler)
@@ -213,7 +219,7 @@
     sys.stdout.write(result_out.getvalue())
     sys.stdout.flush()
     signal.signal(signal.SIGINT, signal.SIG_DFL)
-    with open('report.xml', 'w') as report_xml_file:
+    with open('report.xml', 'wb') as report_xml_file:
       _result.jenkins_junit_xml(result).write(report_xml_file)
     return result
 
diff --git a/src/python/grpcio/tests/interop/methods.py b/src/python/grpcio/tests/interop/methods.py
index b3591ae..7f42b4a 100644
--- a/src/python/grpcio/tests/interop/methods.py
+++ b/src/python/grpcio/tests/interop/methods.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -29,6 +29,8 @@
 
 """Implementations of interoperability test methods."""
 
+from __future__ import print_function
+
 import enum
 import json
 import os
@@ -173,6 +175,9 @@
   def __iter__(self):
     return self
 
+  def __next__(self):
+    return self.next()
+
   def next(self):
     with self._condition:
       while not self._values and self._open:
@@ -205,7 +210,7 @@
 
   with stub, _Pipe() as pipe:
     response_iterator = stub.FullDuplexCall(pipe, _TIMEOUT)
-    print 'Starting ping-pong with response iterator %s' % response_iterator
+    print('Starting ping-pong with response iterator %s' % response_iterator)
     for response_size, payload_size in zip(
         request_response_sizes, request_payload_sizes):
       request = messages_pb2.StreamingOutputCallRequest(
diff --git a/src/python/grpcio/tests/protoc_plugin/beta_python_plugin_test.py b/src/python/grpcio/tests/protoc_plugin/beta_python_plugin_test.py
index ba5b219..230ec64 100644
--- a/src/python/grpcio/tests/protoc_plugin/beta_python_plugin_test.py
+++ b/src/python/grpcio/tests/protoc_plugin/beta_python_plugin_test.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -42,6 +42,8 @@
 import time
 import unittest
 
+from six import moves
+
 from grpc.beta import implementations
 from grpc.framework.foundation import future
 from grpc.framework.interfaces.face import face
@@ -250,7 +252,7 @@
   def testImportAttributes(self):
     # check that we can access the generated module and its members.
     import protoc_plugin_test_pb2 as test_pb2  # pylint: disable=g-import-not-at-top
-    reload(test_pb2)
+    moves.reload_module(test_pb2)
     self.assertIsNotNone(getattr(test_pb2, SERVICER_IDENTIFIER, None))
     self.assertIsNotNone(getattr(test_pb2, STUB_IDENTIFIER, None))
     self.assertIsNotNone(getattr(test_pb2, SERVER_FACTORY_IDENTIFIER, None))
@@ -258,13 +260,13 @@
 
   def testUpDown(self):
     import protoc_plugin_test_pb2 as test_pb2
-    reload(test_pb2)
+    moves.reload_module(test_pb2)
     with _CreateService(test_pb2) as (servicer, stub):
       request = test_pb2.SimpleRequest(response_size=13)
 
   def testUnaryCall(self):
     import protoc_plugin_test_pb2 as test_pb2  # pylint: disable=g-import-not-at-top
-    reload(test_pb2)
+    moves.reload_module(test_pb2)
     with _CreateService(test_pb2) as (methods, stub):
       request = test_pb2.SimpleRequest(response_size=13)
       response = stub.UnaryCall(request, test_constants.LONG_TIMEOUT)
@@ -273,7 +275,7 @@
 
   def testUnaryCallFuture(self):
     import protoc_plugin_test_pb2 as test_pb2  # pylint: disable=g-import-not-at-top
-    reload(test_pb2)
+    moves.reload_module(test_pb2)
     request = test_pb2.SimpleRequest(response_size=13)
     with _CreateService(test_pb2) as (methods, stub):
       # Check that the call does not block waiting for the server to respond.
@@ -286,7 +288,7 @@
 
   def testUnaryCallFutureExpired(self):
     import protoc_plugin_test_pb2 as test_pb2  # pylint: disable=g-import-not-at-top
-    reload(test_pb2)
+    moves.reload_module(test_pb2)
     with _CreateService(test_pb2) as (methods, stub):
       request = test_pb2.SimpleRequest(response_size=13)
       with methods.pause():
@@ -297,7 +299,7 @@
 
   def testUnaryCallFutureCancelled(self):
     import protoc_plugin_test_pb2 as test_pb2  # pylint: disable=g-import-not-at-top
-    reload(test_pb2)
+    moves.reload_module(test_pb2)
     request = test_pb2.SimpleRequest(response_size=13)
     with _CreateService(test_pb2) as (methods, stub):
       with methods.pause():
@@ -307,7 +309,7 @@
 
   def testUnaryCallFutureFailed(self):
     import protoc_plugin_test_pb2 as test_pb2  # pylint: disable=g-import-not-at-top
-    reload(test_pb2)
+    moves.reload_module(test_pb2)
     request = test_pb2.SimpleRequest(response_size=13)
     with _CreateService(test_pb2) as (methods, stub):
       with methods.fail():
@@ -317,20 +319,20 @@
 
   def testStreamingOutputCall(self):
     import protoc_plugin_test_pb2 as test_pb2  # pylint: disable=g-import-not-at-top
-    reload(test_pb2)
+    moves.reload_module(test_pb2)
     request = _streaming_output_request(test_pb2)
     with _CreateService(test_pb2) as (methods, stub):
       responses = stub.StreamingOutputCall(
           request, test_constants.LONG_TIMEOUT)
       expected_responses = methods.StreamingOutputCall(
           request, 'not a real RpcContext!')
-      for expected_response, response in itertools.izip_longest(
+      for expected_response, response in moves.zip_longest(
           expected_responses, responses):
         self.assertEqual(expected_response, response)
 
   def testStreamingOutputCallExpired(self):
     import protoc_plugin_test_pb2 as test_pb2  # pylint: disable=g-import-not-at-top
-    reload(test_pb2)
+    moves.reload_module(test_pb2)
     request = _streaming_output_request(test_pb2)
     with _CreateService(test_pb2) as (methods, stub):
       with methods.pause():
@@ -341,7 +343,7 @@
 
   def testStreamingOutputCallCancelled(self):
     import protoc_plugin_test_pb2 as test_pb2  # pylint: disable=g-import-not-at-top
-    reload(test_pb2)
+    moves.reload_module(test_pb2)
     request = _streaming_output_request(test_pb2)
     with _CreateService(test_pb2) as (unused_methods, stub):
       responses = stub.StreamingOutputCall(
@@ -353,7 +355,7 @@
 
   def testStreamingOutputCallFailed(self):
     import protoc_plugin_test_pb2 as test_pb2  # pylint: disable=g-import-not-at-top
-    reload(test_pb2)
+    moves.reload_module(test_pb2)
     request = _streaming_output_request(test_pb2)
     with _CreateService(test_pb2) as (methods, stub):
       with methods.fail():
@@ -364,7 +366,7 @@
 
   def testStreamingInputCall(self):
     import protoc_plugin_test_pb2 as test_pb2  # pylint: disable=g-import-not-at-top
-    reload(test_pb2)
+    moves.reload_module(test_pb2)
     with _CreateService(test_pb2) as (methods, stub):
       response = stub.StreamingInputCall(
           _streaming_input_request_iterator(test_pb2),
@@ -375,7 +377,7 @@
 
   def testStreamingInputCallFuture(self):
     import protoc_plugin_test_pb2 as test_pb2  # pylint: disable=g-import-not-at-top
-    reload(test_pb2)
+    moves.reload_module(test_pb2)
     with _CreateService(test_pb2) as (methods, stub):
       with methods.pause():
         response_future = stub.StreamingInputCall.future(
@@ -388,7 +390,7 @@
 
   def testStreamingInputCallFutureExpired(self):
     import protoc_plugin_test_pb2 as test_pb2  # pylint: disable=g-import-not-at-top
-    reload(test_pb2)
+    moves.reload_module(test_pb2)
     with _CreateService(test_pb2) as (methods, stub):
       with methods.pause():
         response_future = stub.StreamingInputCall.future(
@@ -401,7 +403,7 @@
 
   def testStreamingInputCallFutureCancelled(self):
     import protoc_plugin_test_pb2 as test_pb2  # pylint: disable=g-import-not-at-top
-    reload(test_pb2)
+    moves.reload_module(test_pb2)
     with _CreateService(test_pb2) as (methods, stub):
       with methods.pause():
         response_future = stub.StreamingInputCall.future(
@@ -414,7 +416,7 @@
 
   def testStreamingInputCallFutureFailed(self):
     import protoc_plugin_test_pb2 as test_pb2  # pylint: disable=g-import-not-at-top
-    reload(test_pb2)
+    moves.reload_module(test_pb2)
     with _CreateService(test_pb2) as (methods, stub):
       with methods.fail():
         response_future = stub.StreamingInputCall.future(
@@ -424,19 +426,19 @@
 
   def testFullDuplexCall(self):
     import protoc_plugin_test_pb2 as test_pb2  # pylint: disable=g-import-not-at-top
-    reload(test_pb2)
+    moves.reload_module(test_pb2)
     with _CreateService(test_pb2) as (methods, stub):
       responses = stub.FullDuplexCall(
           _full_duplex_request_iterator(test_pb2), test_constants.LONG_TIMEOUT)
       expected_responses = methods.FullDuplexCall(
           _full_duplex_request_iterator(test_pb2), 'not a real RpcContext!')
-      for expected_response, response in itertools.izip_longest(
+      for expected_response, response in moves.zip_longest(
           expected_responses, responses):
         self.assertEqual(expected_response, response)
 
   def testFullDuplexCallExpired(self):
     import protoc_plugin_test_pb2 as test_pb2  # pylint: disable=g-import-not-at-top
-    reload(test_pb2)
+    moves.reload_module(test_pb2)
     request_iterator = _full_duplex_request_iterator(test_pb2)
     with _CreateService(test_pb2) as (methods, stub):
       with methods.pause():
@@ -447,7 +449,7 @@
 
   def testFullDuplexCallCancelled(self):
     import protoc_plugin_test_pb2 as test_pb2  # pylint: disable=g-import-not-at-top
-    reload(test_pb2)
+    moves.reload_module(test_pb2)
     with _CreateService(test_pb2) as (methods, stub):
       request_iterator = _full_duplex_request_iterator(test_pb2)
       responses = stub.FullDuplexCall(
@@ -459,7 +461,7 @@
 
   def testFullDuplexCallFailed(self):
     import protoc_plugin_test_pb2 as test_pb2  # pylint: disable=g-import-not-at-top
-    reload(test_pb2)
+    moves.reload_module(test_pb2)
     request_iterator = _full_duplex_request_iterator(test_pb2)
     with _CreateService(test_pb2) as (methods, stub):
       with methods.fail():
@@ -471,7 +473,7 @@
 
   def testHalfDuplexCall(self):
     import protoc_plugin_test_pb2 as test_pb2  # pylint: disable=g-import-not-at-top
-    reload(test_pb2)
+    moves.reload_module(test_pb2)
     with _CreateService(test_pb2) as (methods, stub):
       def half_duplex_request_iterator():
         request = test_pb2.StreamingOutputCallRequest()
@@ -485,13 +487,13 @@
           half_duplex_request_iterator(), test_constants.LONG_TIMEOUT)
       expected_responses = methods.HalfDuplexCall(
           half_duplex_request_iterator(), 'not a real RpcContext!')
-      for check in itertools.izip_longest(expected_responses, responses):
+      for check in moves.zip_longest(expected_responses, responses):
         expected_response, response = check
         self.assertEqual(expected_response, response)
 
   def testHalfDuplexCallWedged(self):
     import protoc_plugin_test_pb2 as test_pb2  # pylint: disable=g-import-not-at-top
-    reload(test_pb2)
+    moves.reload_module(test_pb2)
     condition = threading.Condition()
     wait_cell = [False]
     @contextlib.contextmanager
diff --git a/src/python/grpcio/tests/unit/_adapter/_intermediary_low_test.py b/src/python/grpcio/tests/unit/_adapter/_intermediary_low_test.py
index a6fd823..06bfc34 100644
--- a/src/python/grpcio/tests/unit/_adapter/_intermediary_low_test.py
+++ b/src/python/grpcio/tests/unit/_adapter/_intermediary_low_test.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -29,11 +29,13 @@
 
 """Tests for the old '_low'."""
 
-import Queue
 import threading
 import time
 import unittest
 
+import six
+from six.moves import queue
+
 from grpc._adapter import _intermediary_low as _low
 
 _STREAM_LENGTH = 300
@@ -67,7 +69,7 @@
     second_event = completion_queue.get(after_deadline)
     self.assertIsNotNone(second_event)
     kinds = [event.kind for event in (first_event, second_event)]
-    self.assertItemsEqual(
+    six.assertCountEqual(self,
         (_low.Event.Kind.METADATA_ACCEPTED, _low.Event.Kind.FINISH),
         kinds)
 
@@ -99,7 +101,7 @@
     self.server = _low.Server(self.server_completion_queue)
     port = self.server.add_http2_addr('[::]:0')
     self.server.start()
-    self.server_events = Queue.Queue()
+    self.server_events = queue.Queue()
     self.server_completion_queue_thread = threading.Thread(
         target=_drive_completion_queue,
         args=(self.server_completion_queue, self.server_events))
@@ -107,7 +109,7 @@
 
     self.client_completion_queue = _low.CompletionQueue()
     self.channel = _low.Channel('%s:%d' % (self.host, port), None)
-    self.client_events = Queue.Queue()
+    self.client_events = queue.Queue()
     self.client_completion_queue_thread = threading.Thread(
         target=_drive_completion_queue,
         args=(self.client_completion_queue, self.client_events))
@@ -315,7 +317,7 @@
     self.server = _low.Server(self.server_completion_queue)
     port = self.server.add_http2_addr('[::]:0')
     self.server.start()
-    self.server_events = Queue.Queue()
+    self.server_events = queue.Queue()
     self.server_completion_queue_thread = threading.Thread(
         target=_drive_completion_queue,
         args=(self.server_completion_queue, self.server_events))
@@ -323,7 +325,7 @@
 
     self.client_completion_queue = _low.CompletionQueue()
     self.channel = _low.Channel('%s:%d' % (self.host, port), None)
-    self.client_events = Queue.Queue()
+    self.client_events = queue.Queue()
     self.client_completion_queue_thread = threading.Thread(
         target=_drive_completion_queue,
         args=(self.client_completion_queue, self.client_events))
diff --git a/src/python/grpcio/tests/unit/_adapter/_proto_scenarios.py b/src/python/grpcio/tests/unit/_adapter/_proto_scenarios.py
index f55a7a2..c9f3663 100644
--- a/src/python/grpcio/tests/unit/_adapter/_proto_scenarios.py
+++ b/src/python/grpcio/tests/unit/_adapter/_proto_scenarios.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -32,12 +32,13 @@
 import abc
 import threading
 
+import six
+
 from tests.unit._junkdrawer import math_pb2
 
 
-class ProtoScenario(object):
+class ProtoScenario(six.with_metaclass(abc.ABCMeta)):
   """An RPC test scenario using protocol buffers."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def method(self):
diff --git a/src/python/grpcio/tests/unit/_core_over_links_base_interface_test.py b/src/python/grpcio/tests/unit/_core_over_links_base_interface_test.py
index efc9904..8816337 100644
--- a/src/python/grpcio/tests/unit/_core_over_links_base_interface_test.py
+++ b/src/python/grpcio/tests/unit/_core_over_links_base_interface_test.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -35,6 +35,8 @@
 import time
 import unittest
 
+import six
+
 from grpc._adapter import _intermediary_low
 from grpc._links import invocation
 from grpc._links import service
@@ -68,7 +70,7 @@
   request_deserializers = {}
   response_serializers = {}
   response_deserializers = {}
-  for (group, method), serialization in serializations.iteritems():
+  for (group, method), serialization in six.iteritems(serializations):
     request_serializers[group, method] = serialization.serialize_request
     request_deserializers[group, method] = serialization.deserialize_request
     response_serializers[group, method] = serialization.serialize_response
diff --git a/src/python/grpcio/tests/unit/_crust_over_core_over_links_face_interface_test.py b/src/python/grpcio/tests/unit/_crust_over_core_over_links_face_interface_test.py
index 4faaaad..3be3b05 100644
--- a/src/python/grpcio/tests/unit/_crust_over_core_over_links_face_interface_test.py
+++ b/src/python/grpcio/tests/unit/_crust_over_core_over_links_face_interface_test.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -32,6 +32,8 @@
 import collections
 import unittest
 
+import six
+
 from grpc._adapter import _intermediary_low
 from grpc._links import invocation
 from grpc._links import service
@@ -59,7 +61,7 @@
   request_deserializers = {}
   response_serializers = {}
   response_deserializers = {}
-  for (group, method), test_method in test_methods.iteritems():
+  for (group, method), test_method in six.iteritems(test_methods):
     request_serializers[group, method] = test_method.serialize_request
     request_deserializers[group, method] = test_method.deserialize_request
     response_serializers[group, method] = test_method.serialize_response
@@ -108,7 +110,7 @@
     # _digest.TestServiceDigest.
     cardinalities = {
         method: method_object.cardinality()
-        for (group, method), method_object in methods.iteritems()}
+        for (group, method), method_object in six.iteritems(methods)}
     dynamic_stub = crust_implementations.dynamic_stub(
         invocation_end_link, group, cardinalities, pool)
 
diff --git a/src/python/grpcio/tests/unit/_links/_proto_scenarios.py b/src/python/grpcio/tests/unit/_links/_proto_scenarios.py
index f69ff51..acd4891 100644
--- a/src/python/grpcio/tests/unit/_links/_proto_scenarios.py
+++ b/src/python/grpcio/tests/unit/_links/_proto_scenarios.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -32,13 +32,14 @@
 import abc
 import threading
 
+import six
+
 from tests.unit._junkdrawer import math_pb2
 from tests.unit.framework.common import test_constants
 
 
-class ProtoScenario(object):
+class ProtoScenario(six.with_metaclass(abc.ABCMeta)):
   """An RPC test scenario using protocol buffers."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def group_and_method(self):
diff --git a/src/python/grpcio/tests/unit/beta/_beta_features_test.py b/src/python/grpcio/tests/unit/beta/_beta_features_test.py
index ea44177..ebdedcc 100644
--- a/src/python/grpcio/tests/unit/beta/_beta_features_test.py
+++ b/src/python/grpcio/tests/unit/beta/_beta_features_test.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -125,6 +125,9 @@
   def __iter__(self):
     return self
 
+  def __next__(self):
+    return self.next()
+
   def next(self):
     with self._condition:
       while True:
diff --git a/src/python/grpcio/tests/unit/beta/_face_interface_test.py b/src/python/grpcio/tests/unit/beta/_face_interface_test.py
index 1c21dfd..cb302bb 100644
--- a/src/python/grpcio/tests/unit/beta/_face_interface_test.py
+++ b/src/python/grpcio/tests/unit/beta/_face_interface_test.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -32,6 +32,8 @@
 import collections
 import unittest
 
+import six
+
 from grpc.beta import implementations
 from grpc.beta import interfaces
 from tests.unit import resources
@@ -57,7 +59,7 @@
   request_deserializers = {}
   response_serializers = {}
   response_deserializers = {}
-  for (group, method), test_method in test_methods.iteritems():
+  for (group, method), test_method in six.iteritems(test_methods):
     request_serializers[group, method] = test_method.serialize_request
     request_deserializers[group, method] = test_method.deserialize_request
     response_serializers[group, method] = test_method.serialize_response
@@ -79,7 +81,7 @@
     # _digest.TestServiceDigest.
     cardinalities = {
         method: method_object.cardinality()
-        for (group, method), method_object in methods.iteritems()}
+        for (group, method), method_object in six.iteritems(methods)}
 
     server_options = implementations.server_options(
         request_deserializers=serialization_behaviors.request_deserializers,
diff --git a/src/python/grpcio/tests/unit/framework/_crust_over_core_face_interface_test.py b/src/python/grpcio/tests/unit/framework/_crust_over_core_face_interface_test.py
index 360ecc9..fd2d429 100644
--- a/src/python/grpcio/tests/unit/framework/_crust_over_core_face_interface_test.py
+++ b/src/python/grpcio/tests/unit/framework/_crust_over_core_face_interface_test.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -32,6 +32,8 @@
 import collections
 import unittest
 
+import six
+
 from grpc.framework.core import implementations as core_implementations
 from grpc.framework.crust import implementations as crust_implementations
 from grpc.framework.foundation import logging_pool
@@ -66,7 +68,7 @@
     # _digest.TestServiceDigest.
     cardinalities = {
         method: method_object.cardinality()
-        for (group, method), method_object in methods.iteritems()}
+        for (group, method), method_object in six.iteritems(methods)}
     dynamic_stub = crust_implementations.dynamic_stub(
         invocation_end_link, group, cardinalities, pool)
 
diff --git a/src/python/grpcio/tests/unit/framework/common/test_control.py b/src/python/grpcio/tests/unit/framework/common/test_control.py
index 8d6eba5..0387668 100644
--- a/src/python/grpcio/tests/unit/framework/common/test_control.py
+++ b/src/python/grpcio/tests/unit/framework/common/test_control.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -33,6 +33,8 @@
 import contextlib
 import threading
 
+import six
+
 
 class Defect(Exception):
   """Simulates a programming defect raised into in a system under test.
@@ -42,7 +44,7 @@
   """
 
 
-class Control(object):
+class Control(six.with_metaclass(abc.ABCMeta)):
   """An object that accepts program control from a system under test.
 
   Systems under test passed a Control should call its control() method
@@ -51,8 +53,6 @@
   the system under test to simulate hanging, failing, or functioning.
   """
 
-  __metaclass__ = abc.ABCMeta
-
   @abc.abstractmethod
   def control(self):
     """Potentially does anything."""
diff --git a/src/python/grpcio/tests/unit/framework/common/test_coverage.py b/src/python/grpcio/tests/unit/framework/common/test_coverage.py
index a7ed358..184621f 100644
--- a/src/python/grpcio/tests/unit/framework/common/test_coverage.py
+++ b/src/python/grpcio/tests/unit/framework/common/test_coverage.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -31,13 +31,14 @@
 
 import abc
 
+import six
+
 # This code is designed for use with the unittest module.
 # pylint: disable=invalid-name
 
 
-class Coverage(object):
+class Coverage(six.with_metaclass(abc.ABCMeta)):
   """Specification of test coverage."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def testSuccessfulUnaryRequestUnaryResponse(self):
diff --git a/src/python/grpcio/tests/unit/framework/face/testing/base_util.py b/src/python/grpcio/tests/unit/framework/face/testing/base_util.py
index 1df1529..60ab5bc 100644
--- a/src/python/grpcio/tests/unit/framework/face/testing/base_util.py
+++ b/src/python/grpcio/tests/unit/framework/face/testing/base_util.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -31,6 +31,8 @@
 
 import abc
 
+import six
+
 # interfaces is referenced from specification in this module.
 from grpc.framework.base import util as _base_util
 from grpc.framework.base import implementations
@@ -43,7 +45,7 @@
 _MAXIMUM_TIMEOUT = 90
 
 
-class LinkedPair(object):
+class LinkedPair(six.with_metaclass(abc.ABCMeta)):
   """A Front and Back that are linked to one another.
 
   Attributes:
@@ -51,8 +53,6 @@
     back: An interfaces.Back.
   """
 
-  __metaclass__ = abc.ABCMeta
-
   @abc.abstractmethod
   def shut_down(self):
     """Shuts down this object and releases its resources."""
diff --git a/src/python/grpcio/tests/unit/framework/face/testing/blocking_invocation_inline_service_test_case.py b/src/python/grpcio/tests/unit/framework/face/testing/blocking_invocation_inline_service_test_case.py
index 0613516..b0b00bf 100644
--- a/src/python/grpcio/tests/unit/framework/face/testing/blocking_invocation_inline_service_test_case.py
+++ b/src/python/grpcio/tests/unit/framework/face/testing/blocking_invocation_inline_service_test_case.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -33,6 +33,8 @@
 import abc
 import unittest  # pylint: disable=unused-import
 
+import six
+
 from grpc.framework.face import exceptions
 from tests.unit.framework.common import test_constants
 from tests.unit.framework.face.testing import control
@@ -43,12 +45,12 @@
 
 
 class BlockingInvocationInlineServiceTestCase(
-    test_case.FaceTestCase, coverage.BlockingCoverage):
+    six.with_metaclass(abc.ABCMeta,
+    test_case.FaceTestCase, coverage.BlockingCoverage)):
   """A test of the Face layer of RPC Framework.
 
   Concrete subclasses must also extend unittest.TestCase.
   """
-  __metaclass__ = abc.ABCMeta
 
   def setUp(self):
     """See unittest.TestCase.setUp for full specification.
@@ -72,7 +74,7 @@
 
   def testSuccessfulUnaryRequestUnaryResponse(self):
     for name, test_messages_sequence in (
-        self.digest.unary_unary_messages_sequences.iteritems()):
+        six.iteritems(self.digest.unary_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
 
@@ -83,7 +85,7 @@
 
   def testSuccessfulUnaryRequestStreamResponse(self):
     for name, test_messages_sequence in (
-        self.digest.unary_stream_messages_sequences.iteritems()):
+        six.iteritems(self.digest.unary_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
 
@@ -95,7 +97,7 @@
 
   def testSuccessfulStreamRequestUnaryResponse(self):
     for name, test_messages_sequence in (
-        self.digest.stream_unary_messages_sequences.iteritems()):
+        six.iteritems(self.digest.stream_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
 
@@ -106,7 +108,7 @@
 
   def testSuccessfulStreamRequestStreamResponse(self):
     for name, test_messages_sequence in (
-        self.digest.stream_stream_messages_sequences.iteritems()):
+        six.iteritems(self.digest.stream_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
 
@@ -118,7 +120,7 @@
 
   def testSequentialInvocations(self):
     for name, test_messages_sequence in (
-        self.digest.unary_unary_messages_sequences.iteritems()):
+        six.iteritems(self.digest.unary_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         first_request = test_messages.request()
         second_request = test_messages.request()
@@ -135,7 +137,7 @@
 
   def testExpiredUnaryRequestUnaryResponse(self):
     for name, test_messages_sequence in (
-        self.digest.unary_unary_messages_sequences.iteritems()):
+        six.iteritems(self.digest.unary_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
 
@@ -146,7 +148,7 @@
 
   def testExpiredUnaryRequestStreamResponse(self):
     for name, test_messages_sequence in (
-        self.digest.unary_stream_messages_sequences.iteritems()):
+        six.iteritems(self.digest.unary_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
 
@@ -158,7 +160,7 @@
 
   def testExpiredStreamRequestUnaryResponse(self):
     for name, test_messages_sequence in (
-        self.digest.stream_unary_messages_sequences.iteritems()):
+        six.iteritems(self.digest.stream_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
 
@@ -169,7 +171,7 @@
 
   def testExpiredStreamRequestStreamResponse(self):
     for name, test_messages_sequence in (
-        self.digest.stream_stream_messages_sequences.iteritems()):
+        six.iteritems(self.digest.stream_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
 
@@ -181,7 +183,7 @@
 
   def testFailedUnaryRequestUnaryResponse(self):
     for name, test_messages_sequence in (
-        self.digest.unary_unary_messages_sequences.iteritems()):
+        six.iteritems(self.digest.unary_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
 
@@ -191,7 +193,7 @@
 
   def testFailedUnaryRequestStreamResponse(self):
     for name, test_messages_sequence in (
-        self.digest.unary_stream_messages_sequences.iteritems()):
+        six.iteritems(self.digest.unary_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
 
@@ -202,7 +204,7 @@
 
   def testFailedStreamRequestUnaryResponse(self):
     for name, test_messages_sequence in (
-        self.digest.stream_unary_messages_sequences.iteritems()):
+        six.iteritems(self.digest.stream_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
 
@@ -212,7 +214,7 @@
 
   def testFailedStreamRequestStreamResponse(self):
     for name, test_messages_sequence in (
-        self.digest.stream_stream_messages_sequences.iteritems()):
+        six.iteritems(self.digest.stream_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
 
diff --git a/src/python/grpcio/tests/unit/framework/face/testing/control.py b/src/python/grpcio/tests/unit/framework/face/testing/control.py
index 3960c4e..0d40331 100644
--- a/src/python/grpcio/tests/unit/framework/face/testing/control.py
+++ b/src/python/grpcio/tests/unit/framework/face/testing/control.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -33,8 +33,10 @@
 import contextlib
 import threading
 
+import six
 
-class Control(object):
+
+class Control(six.with_metaclass(abc.ABCMeta)):
   """An object that accepts program control from a system under test.
 
   Systems under test passed a Control should call its control() method
@@ -43,8 +45,6 @@
   the system under test to simulate hanging, failing, or functioning.
   """
 
-  __metaclass__ = abc.ABCMeta
-
   @abc.abstractmethod
   def control(self):
     """Potentially does anything."""
diff --git a/src/python/grpcio/tests/unit/framework/face/testing/coverage.py b/src/python/grpcio/tests/unit/framework/face/testing/coverage.py
index f3aca11..9f53810 100644
--- a/src/python/grpcio/tests/unit/framework/face/testing/coverage.py
+++ b/src/python/grpcio/tests/unit/framework/face/testing/coverage.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -31,15 +31,15 @@
 
 import abc
 
+import six
+
 # These classes are only valid when inherited by unittest.TestCases.
 # pylint: disable=invalid-name
 
 
-class BlockingCoverage(object):
+class BlockingCoverage(six.with_metaclass(abc.ABCMeta)):
   """Specification of test coverage for blocking behaviors."""
 
-  __metaclass__ = abc.ABCMeta
-
   @abc.abstractmethod
   def testSuccessfulUnaryRequestUnaryResponse(self):
     raise NotImplementedError()
@@ -93,11 +93,9 @@
     raise NotImplementedError()
 
 
-class FullCoverage(BlockingCoverage):
+class FullCoverage(six.with_metaclass(abc.ABCMeta, BlockingCoverage)):
   """Specification of test coverage for non-blocking behaviors."""
 
-  __metaclass__ = abc.ABCMeta
-
   @abc.abstractmethod
   def testParallelInvocations(self):
     raise NotImplementedError()
diff --git a/src/python/grpcio/tests/unit/framework/face/testing/digest.py b/src/python/grpcio/tests/unit/framework/face/testing/digest.py
index 39f28b9..100067c 100644
--- a/src/python/grpcio/tests/unit/framework/face/testing/digest.py
+++ b/src/python/grpcio/tests/unit/framework/face/testing/digest.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -32,6 +32,8 @@
 import collections
 import threading
 
+import six
+
 # testing_control, interfaces, and testing_service are referenced from
 # specification in this module.
 from grpc.framework.common import cardinality
@@ -368,7 +370,7 @@
   events = {}
   adaptations = {}
   messages = {}
-  for name, scenario in scenarios.iteritems():
+  for name, scenario in six.iteritems(scenarios):
     if name in names:
       raise ValueError('Repeated name "%s"!' % name)
 
diff --git a/src/python/grpcio/tests/unit/framework/face/testing/event_invocation_synchronous_event_service_test_case.py b/src/python/grpcio/tests/unit/framework/face/testing/event_invocation_synchronous_event_service_test_case.py
index 179f3a2..db901cf 100644
--- a/src/python/grpcio/tests/unit/framework/face/testing/event_invocation_synchronous_event_service_test_case.py
+++ b/src/python/grpcio/tests/unit/framework/face/testing/event_invocation_synchronous_event_service_test_case.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -32,6 +32,8 @@
 import abc
 import unittest
 
+import six
+
 from grpc.framework.face import interfaces
 from tests.unit.framework.common import test_constants
 from tests.unit.framework.face.testing import callback as testing_callback
@@ -43,12 +45,12 @@
 
 
 class EventInvocationSynchronousEventServiceTestCase(
-    test_case.FaceTestCase, coverage.FullCoverage):
+    six.with_metaclass(abc.ABCMeta,
+    test_case.FaceTestCase, coverage.FullCoverage)):
   """A test of the Face layer of RPC Framework.
 
   Concrete subclasses must also extend unittest.TestCase.
   """
-  __metaclass__ = abc.ABCMeta
 
   def setUp(self):
     """See unittest.TestCase.setUp for full specification.
@@ -72,7 +74,7 @@
 
   def testSuccessfulUnaryRequestUnaryResponse(self):
     for name, test_messages_sequence in (
-        self.digest.unary_unary_messages_sequences.iteritems()):
+        six.iteritems(self.digest.unary_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
         callback = testing_callback.Callback()
@@ -87,7 +89,7 @@
 
   def testSuccessfulUnaryRequestStreamResponse(self):
     for name, test_messages_sequence in (
-        self.digest.unary_stream_messages_sequences.iteritems()):
+        six.iteritems(self.digest.unary_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
         callback = testing_callback.Callback()
@@ -102,7 +104,7 @@
 
   def testSuccessfulStreamRequestUnaryResponse(self):
     for name, test_messages_sequence in (
-        self.digest.stream_unary_messages_sequences.iteritems()):
+        six.iteritems(self.digest.stream_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
         callback = testing_callback.Callback()
@@ -120,7 +122,7 @@
 
   def testSuccessfulStreamRequestStreamResponse(self):
     for name, test_messages_sequence in (
-        self.digest.stream_stream_messages_sequences.iteritems()):
+        six.iteritems(self.digest.stream_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
         callback = testing_callback.Callback()
@@ -138,7 +140,7 @@
   def testSequentialInvocations(self):
     # pylint: disable=cell-var-from-loop
     for name, test_messages_sequence in (
-        self.digest.unary_unary_messages_sequences.iteritems()):
+        six.iteritems(self.digest.unary_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         first_request = test_messages.request()
         second_request = test_messages.request()
@@ -163,7 +165,7 @@
 
   def testExpiredUnaryRequestUnaryResponse(self):
     for name, test_messages_sequence in (
-        self.digest.unary_unary_messages_sequences.iteritems()):
+        six.iteritems(self.digest.unary_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
         callback = testing_callback.Callback()
@@ -178,7 +180,7 @@
 
   def testExpiredUnaryRequestStreamResponse(self):
     for name, test_messages_sequence in (
-        self.digest.unary_stream_messages_sequences.iteritems()):
+        six.iteritems(self.digest.unary_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
         callback = testing_callback.Callback()
@@ -193,7 +195,7 @@
 
   def testExpiredStreamRequestUnaryResponse(self):
     for name, test_messages_sequence in (
-        self.digest.stream_unary_messages_sequences.iteritems()):
+        six.iteritems(self.digest.stream_unary_messages_sequences)):
       for unused_test_messages in test_messages_sequence:
         callback = testing_callback.Callback()
 
@@ -206,7 +208,7 @@
 
   def testExpiredStreamRequestStreamResponse(self):
     for name, test_messages_sequence in (
-        self.digest.stream_stream_messages_sequences.iteritems()):
+        six.iteritems(self.digest.stream_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
         callback = testing_callback.Callback()
@@ -221,7 +223,7 @@
 
   def testFailedUnaryRequestUnaryResponse(self):
     for name, test_messages_sequence in (
-        self.digest.unary_unary_messages_sequences.iteritems()):
+        six.iteritems(self.digest.unary_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
         callback = testing_callback.Callback()
@@ -237,7 +239,7 @@
 
   def testFailedUnaryRequestStreamResponse(self):
     for name, test_messages_sequence in (
-        self.digest.unary_stream_messages_sequences.iteritems()):
+        six.iteritems(self.digest.unary_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
         callback = testing_callback.Callback()
@@ -253,7 +255,7 @@
 
   def testFailedStreamRequestUnaryResponse(self):
     for name, test_messages_sequence in (
-        self.digest.stream_unary_messages_sequences.iteritems()):
+        six.iteritems(self.digest.stream_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
         callback = testing_callback.Callback()
@@ -272,7 +274,7 @@
 
   def testFailedStreamRequestStreamResponse(self):
     for name, test_messages_sequence in (
-        self.digest.stream_stream_messages_sequences.iteritems()):
+        six.iteritems(self.digest.stream_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
         callback = testing_callback.Callback()
@@ -289,7 +291,7 @@
 
   def testParallelInvocations(self):
     for name, test_messages_sequence in (
-        self.digest.unary_unary_messages_sequences.iteritems()):
+        six.iteritems(self.digest.unary_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         first_request = test_messages.request()
         first_callback = testing_callback.Callback()
@@ -316,7 +318,7 @@
 
   def testCancelledUnaryRequestUnaryResponse(self):
     for name, test_messages_sequence in (
-        self.digest.unary_unary_messages_sequences.iteritems()):
+        six.iteritems(self.digest.unary_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
         callback = testing_callback.Callback()
@@ -332,7 +334,7 @@
 
   def testCancelledUnaryRequestStreamResponse(self):
     for name, test_messages_sequence in (
-        self.digest.unary_stream_messages_sequences.iteritems()):
+        six.iteritems(self.digest.unary_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
         callback = testing_callback.Callback()
@@ -347,7 +349,7 @@
 
   def testCancelledStreamRequestUnaryResponse(self):
     for name, test_messages_sequence in (
-        self.digest.stream_unary_messages_sequences.iteritems()):
+        six.iteritems(self.digest.stream_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
         callback = testing_callback.Callback()
@@ -364,7 +366,7 @@
 
   def testCancelledStreamRequestStreamResponse(self):
     for name, test_messages_sequence in (
-        self.digest.stream_stream_messages_sequences.iteritems()):
+        six.iteritems(self.digest.stream_stream_messages_sequences)):
       for unused_test_messages in test_messages_sequence:
         callback = testing_callback.Callback()
 
diff --git a/src/python/grpcio/tests/unit/framework/face/testing/future_invocation_asynchronous_event_service_test_case.py b/src/python/grpcio/tests/unit/framework/face/testing/future_invocation_asynchronous_event_service_test_case.py
index 485524a..d8706aa 100644
--- a/src/python/grpcio/tests/unit/framework/face/testing/future_invocation_asynchronous_event_service_test_case.py
+++ b/src/python/grpcio/tests/unit/framework/face/testing/future_invocation_asynchronous_event_service_test_case.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -34,6 +34,8 @@
 import threading
 import unittest
 
+import six
+
 from grpc.framework.face import exceptions
 from grpc.framework.foundation import future
 from grpc.framework.foundation import logging_pool
@@ -66,6 +68,9 @@
   def __iter__(self):
     return self
 
+  def __next__(self):
+    return self.next()
+
   def next(self):
     with self._condition:
       while self._paused:
@@ -74,12 +79,12 @@
 
 
 class FutureInvocationAsynchronousEventServiceTestCase(
-    test_case.FaceTestCase, coverage.FullCoverage):
+    six.with_metaclass(abc.ABCMeta,
+    test_case.FaceTestCase, coverage.FullCoverage)):
   """A test of the Face layer of RPC Framework.
 
   Concrete subclasses must also extend unittest.TestCase.
   """
-  __metaclass__ = abc.ABCMeta
 
   def setUp(self):
     """See unittest.TestCase.setUp for full specification.
@@ -105,7 +110,7 @@
 
   def testSuccessfulUnaryRequestUnaryResponse(self):
     for name, test_messages_sequence in (
-        self.digest.unary_unary_messages_sequences.iteritems()):
+        six.iteritems(self.digest.unary_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
 
@@ -117,7 +122,7 @@
 
   def testSuccessfulUnaryRequestStreamResponse(self):
     for name, test_messages_sequence in (
-        self.digest.unary_stream_messages_sequences.iteritems()):
+        six.iteritems(self.digest.unary_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
 
@@ -129,7 +134,7 @@
 
   def testSuccessfulStreamRequestUnaryResponse(self):
     for name, test_messages_sequence in (
-        self.digest.stream_unary_messages_sequences.iteritems()):
+        six.iteritems(self.digest.stream_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
         request_iterator = _PauseableIterator(iter(requests))
@@ -145,7 +150,7 @@
 
   def testSuccessfulStreamRequestStreamResponse(self):
     for name, test_messages_sequence in (
-        self.digest.stream_stream_messages_sequences.iteritems()):
+        six.iteritems(self.digest.stream_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
         request_iterator = _PauseableIterator(iter(requests))
@@ -161,7 +166,7 @@
 
   def testSequentialInvocations(self):
     for name, test_messages_sequence in (
-        self.digest.unary_unary_messages_sequences.iteritems()):
+        six.iteritems(self.digest.unary_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         first_request = test_messages.request()
         second_request = test_messages.request()
@@ -180,7 +185,7 @@
 
   def testExpiredUnaryRequestUnaryResponse(self):
     for name, test_messages_sequence in (
-        self.digest.unary_unary_messages_sequences.iteritems()):
+        six.iteritems(self.digest.unary_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
 
@@ -195,7 +200,7 @@
 
   def testExpiredUnaryRequestStreamResponse(self):
     for name, test_messages_sequence in (
-        self.digest.unary_stream_messages_sequences.iteritems()):
+        six.iteritems(self.digest.unary_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
 
@@ -207,7 +212,7 @@
 
   def testExpiredStreamRequestUnaryResponse(self):
     for name, test_messages_sequence in (
-        self.digest.stream_unary_messages_sequences.iteritems()):
+        six.iteritems(self.digest.stream_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
 
@@ -222,7 +227,7 @@
 
   def testExpiredStreamRequestStreamResponse(self):
     for name, test_messages_sequence in (
-        self.digest.stream_stream_messages_sequences.iteritems()):
+        six.iteritems(self.digest.stream_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
 
@@ -234,7 +239,7 @@
 
   def testFailedUnaryRequestUnaryResponse(self):
     for name, test_messages_sequence in (
-        self.digest.unary_unary_messages_sequences.iteritems()):
+        six.iteritems(self.digest.unary_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
 
@@ -253,7 +258,7 @@
 
   def testFailedUnaryRequestStreamResponse(self):
     for name, test_messages_sequence in (
-        self.digest.unary_stream_messages_sequences.iteritems()):
+        six.iteritems(self.digest.unary_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
 
@@ -268,7 +273,7 @@
 
   def testFailedStreamRequestUnaryResponse(self):
     for name, test_messages_sequence in (
-        self.digest.stream_unary_messages_sequences.iteritems()):
+        six.iteritems(self.digest.stream_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
 
@@ -287,7 +292,7 @@
 
   def testFailedStreamRequestStreamResponse(self):
     for name, test_messages_sequence in (
-        self.digest.stream_stream_messages_sequences.iteritems()):
+        six.iteritems(self.digest.stream_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
 
@@ -302,7 +307,7 @@
 
   def testParallelInvocations(self):
     for name, test_messages_sequence in (
-        self.digest.unary_unary_messages_sequences.iteritems()):
+        six.iteritems(self.digest.unary_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         first_request = test_messages.request()
         second_request = test_messages.request()
@@ -324,7 +329,7 @@
 
   def testCancelledUnaryRequestUnaryResponse(self):
     for name, test_messages_sequence in (
-        self.digest.unary_unary_messages_sequences.iteritems()):
+        six.iteritems(self.digest.unary_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
 
@@ -338,7 +343,7 @@
 
   def testCancelledUnaryRequestStreamResponse(self):
     for name, test_messages_sequence in (
-        self.digest.unary_stream_messages_sequences.iteritems()):
+        six.iteritems(self.digest.unary_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
 
@@ -352,7 +357,7 @@
 
   def testCancelledStreamRequestUnaryResponse(self):
     for name, test_messages_sequence in (
-        self.digest.stream_unary_messages_sequences.iteritems()):
+        six.iteritems(self.digest.stream_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
 
@@ -366,7 +371,7 @@
 
   def testCancelledStreamRequestStreamResponse(self):
     for name, test_messages_sequence in (
-        self.digest.stream_stream_messages_sequences.iteritems()):
+        six.iteritems(self.digest.stream_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
 
diff --git a/src/python/grpcio/tests/unit/framework/face/testing/interfaces.py b/src/python/grpcio/tests/unit/framework/face/testing/interfaces.py
index 5932dab..87be836 100644
--- a/src/python/grpcio/tests/unit/framework/face/testing/interfaces.py
+++ b/src/python/grpcio/tests/unit/framework/face/testing/interfaces.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -31,13 +31,14 @@
 
 import abc
 
+import six
+
 # cardinality is referenced from specification in this module.
 from grpc.framework.common import cardinality  # pylint: disable=unused-import
 
 
-class Method(object):
+class Method(six.with_metaclass(abc.ABCMeta)):
   """An RPC method to be used in tests of RPC implementations."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def name(self):
diff --git a/src/python/grpcio/tests/unit/framework/face/testing/service.py b/src/python/grpcio/tests/unit/framework/face/testing/service.py
index ac0b89b..dc0f204 100644
--- a/src/python/grpcio/tests/unit/framework/face/testing/service.py
+++ b/src/python/grpcio/tests/unit/framework/face/testing/service.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -31,16 +31,16 @@
 
 import abc
 
+import six
+
 # interfaces is referenced from specification in this module.
 from grpc.framework.face import interfaces as face_interfaces  # pylint: disable=unused-import
 from tests.unit.framework.face.testing import interfaces
 
 
-class UnaryUnaryTestMethodImplementation(interfaces.Method):
+class UnaryUnaryTestMethodImplementation(six.with_metaclass(abc.ABCMeta, interfaces.Method)):
   """A controllable implementation of a unary-unary RPC method."""
 
-  __metaclass__ = abc.ABCMeta
-
   @abc.abstractmethod
   def service(self, request, response_callback, context, control):
     """Services an RPC that accepts one message and produces one message.
@@ -59,11 +59,9 @@
     raise NotImplementedError()
 
 
-class UnaryUnaryTestMessages(object):
+class UnaryUnaryTestMessages(six.with_metaclass(abc.ABCMeta)):
   """A type for unary-request-unary-response message pairings."""
 
-  __metaclass__ = abc.ABCMeta
-
   @abc.abstractmethod
   def request(self):
     """Affords a request message.
@@ -93,11 +91,9 @@
     raise NotImplementedError()
 
 
-class UnaryStreamTestMethodImplementation(interfaces.Method):
+class UnaryStreamTestMethodImplementation(six.with_metaclass(abc.ABCMeta, interfaces.Method)):
   """A controllable implementation of a unary-stream RPC method."""
 
-  __metaclass__ = abc.ABCMeta
-
   @abc.abstractmethod
   def service(self, request, response_consumer, context, control):
     """Services an RPC that takes one message and produces a stream of messages.
@@ -116,11 +112,9 @@
     raise NotImplementedError()
 
 
-class UnaryStreamTestMessages(object):
+class UnaryStreamTestMessages(six.with_metaclass(abc.ABCMeta)):
   """A type for unary-request-stream-response message pairings."""
 
-  __metaclass__ = abc.ABCMeta
-
   @abc.abstractmethod
   def request(self):
     """Affords a request message.
@@ -150,11 +144,9 @@
     raise NotImplementedError()
 
 
-class StreamUnaryTestMethodImplementation(interfaces.Method):
+class StreamUnaryTestMethodImplementation(six.with_metaclass(abc.ABCMeta, interfaces.Method)):
   """A controllable implementation of a stream-unary RPC method."""
 
-  __metaclass__ = abc.ABCMeta
-
   @abc.abstractmethod
   def service(self, response_callback, context, control):
     """Services an RPC that takes a stream of messages and produces one message.
@@ -180,11 +172,9 @@
     raise NotImplementedError()
 
 
-class StreamUnaryTestMessages(object):
+class StreamUnaryTestMessages(six.with_metaclass(abc.ABCMeta)):
   """A type for stream-request-unary-response message pairings."""
 
-  __metaclass__ = abc.ABCMeta
-
   @abc.abstractmethod
   def requests(self):
     """Affords a sequence of request messages.
@@ -214,11 +204,9 @@
     raise NotImplementedError()
 
 
-class StreamStreamTestMethodImplementation(interfaces.Method):
+class StreamStreamTestMethodImplementation(six.with_metaclass(abc.ABCMeta, interfaces.Method)):
   """A controllable implementation of a stream-stream RPC method."""
 
-  __metaclass__ = abc.ABCMeta
-
   @abc.abstractmethod
   def service(self, response_consumer, context, control):
     """Services an RPC that accepts and produces streams of messages.
@@ -244,11 +232,9 @@
     raise NotImplementedError()
 
 
-class StreamStreamTestMessages(object):
+class StreamStreamTestMessages(six.with_metaclass(abc.ABCMeta)):
   """A type for stream-request-stream-response message pairings."""
 
-  __metaclass__ = abc.ABCMeta
-
   @abc.abstractmethod
   def requests(self):
     """Affords a sequence of request messages.
@@ -278,11 +264,9 @@
     raise NotImplementedError()
 
 
-class TestService(object):
+class TestService(six.with_metaclass(abc.ABCMeta)):
   """A specification of implemented RPC methods to use in tests."""
 
-  __metaclass__ = abc.ABCMeta
-
   @abc.abstractmethod
   def name(self):
     """Identifies the RPC service name used during the test.
diff --git a/src/python/grpcio/tests/unit/framework/face/testing/test_case.py b/src/python/grpcio/tests/unit/framework/face/testing/test_case.py
index 23d4d91..5be9330 100644
--- a/src/python/grpcio/tests/unit/framework/face/testing/test_case.py
+++ b/src/python/grpcio/tests/unit/framework/face/testing/test_case.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -31,18 +31,19 @@
 
 import abc
 
+import six
+
 # face_interfaces and interfaces are referenced in specification in this module.
 from grpc.framework.face import interfaces as face_interfaces  # pylint: disable=unused-import
 from tests.unit.framework.face.testing import interfaces  # pylint: disable=unused-import
 
 
-class FaceTestCase(object):
+class FaceTestCase(six.with_metaclass(abc.ABCMeta)):
   """Describes a test of the Face Layer of RPC Framework.
 
   Concrete subclasses must also inherit from unittest.TestCase and from at least
   one class that defines test methods.
   """
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def set_up_implementation(
diff --git a/src/python/grpcio/tests/unit/framework/interfaces/base/_control.py b/src/python/grpcio/tests/unit/framework/interfaces/base/_control.py
index 38102b1..94bcc14 100644
--- a/src/python/grpcio/tests/unit/framework/interfaces/base/_control.py
+++ b/src/python/grpcio/tests/unit/framework/interfaces/base/_control.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -29,6 +29,8 @@
 
 """Part of the tests of the base interface of RPC Framework."""
 
+from __future__ import division
+
 import abc
 import collections
 import enum
@@ -36,6 +38,8 @@
 import threading
 import time
 
+import six
+
 from grpc.framework.interfaces.base import base
 from tests.unit.framework.common import test_constants
 from tests.unit.framework.interfaces.base import _sequence
@@ -45,8 +49,8 @@
 _GROUP = 'base test cases test group'
 _METHOD = 'base test cases test method'
 
-_PAYLOAD_RANDOM_SECTION_MAXIMUM_SIZE = test_constants.PAYLOAD_SIZE / 20
-_MINIMUM_PAYLOAD_SIZE = test_constants.PAYLOAD_SIZE / 600
+_PAYLOAD_RANDOM_SECTION_MAXIMUM_SIZE = test_constants.PAYLOAD_SIZE // 20
+_MINIMUM_PAYLOAD_SIZE = test_constants.PAYLOAD_SIZE // 600
 
 
 def _create_payload(randomness):
@@ -57,7 +61,7 @@
   random_section = bytes(
       bytearray(
           randomness.getrandbits(8) for _ in range(random_section_length)))
-  sevens_section = '\x07' * (length - random_section_length)
+  sevens_section = b'\x07' * (length - random_section_length)
   return b''.join(randomness.sample((random_section, sevens_section), 2))
 
 
@@ -247,8 +251,7 @@
     CONCLUDE = 'CONCLUDE'
 
 
-class Controller(object):
-  __metaclass__ = abc.ABCMeta
+class Controller(six.with_metaclass(abc.ABCMeta)):
 
   @abc.abstractmethod
   def failed(self, message):
@@ -308,8 +311,7 @@
     raise NotImplementedError()
 
 
-class ControllerCreator(object):
-  __metaclass__ = abc.ABCMeta
+class ControllerCreator(six.with_metaclass(abc.ABCMeta)):
 
   @abc.abstractmethod
   def name(self):
@@ -385,13 +387,13 @@
     return request + request
 
   def deserialize_request(self, serialized_request):
-    return serialized_request[:len(serialized_request) / 2]
+    return serialized_request[:len(serialized_request) // 2]
 
   def serialize_response(self, response):
     return response * 3
 
   def deserialize_response(self, serialized_response):
-    return serialized_response[2 * len(serialized_response) / 3:]
+    return serialized_response[2 * len(serialized_response) // 3:]
 
   def invocation(self):
     with self._condition:
diff --git a/src/python/grpcio/tests/unit/framework/interfaces/base/test_interfaces.py b/src/python/grpcio/tests/unit/framework/interfaces/base/test_interfaces.py
index 84afd24..0594cfe 100644
--- a/src/python/grpcio/tests/unit/framework/interfaces/base/test_interfaces.py
+++ b/src/python/grpcio/tests/unit/framework/interfaces/base/test_interfaces.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -31,12 +31,13 @@
 
 import abc
 
+import six
+
 from grpc.framework.interfaces.base import base  # pylint: disable=unused-import
 
 
-class Serialization(object):
+class Serialization(six.with_metaclass(abc.ABCMeta)):
   """Specifies serialization and deserialization of test payloads."""
-  __metaclass__ = abc.ABCMeta
 
   def serialize_request(self, request):
     """Serializes a request value used in a test.
@@ -85,9 +86,8 @@
     raise NotImplementedError()
 
 
-class Implementation(object):
+class Implementation(six.with_metaclass(abc.ABCMeta)):
   """Specifies an implementation of the Base layer."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def instantiate(self, serializations, servicer):
diff --git a/src/python/grpcio/tests/unit/framework/interfaces/face/_blocking_invocation_inline_service.py b/src/python/grpcio/tests/unit/framework/interfaces/face/_blocking_invocation_inline_service.py
index c8a3a1b..936b87f 100644
--- a/src/python/grpcio/tests/unit/framework/interfaces/face/_blocking_invocation_inline_service.py
+++ b/src/python/grpcio/tests/unit/framework/interfaces/face/_blocking_invocation_inline_service.py
@@ -29,11 +29,15 @@
 
 """Test code for the Face layer of RPC Framework."""
 
+from __future__ import division
+
 import abc
 import itertools
 import unittest
 from concurrent import futures
 
+import six
+
 # test_interfaces is referenced from specification in this module.
 from grpc.framework.foundation import logging_pool
 from grpc.framework.interfaces.face import face
@@ -46,14 +50,13 @@
 from tests.unit.framework.interfaces.face import test_interfaces  # pylint: disable=unused-import
 
 
-class TestCase(test_coverage.Coverage, unittest.TestCase):
+class TestCase(six.with_metaclass(abc.ABCMeta, test_coverage.Coverage, unittest.TestCase)):
   """A test of the Face layer of RPC Framework.
 
   Concrete subclasses must have an "implementation" attribute of type
   test_interfaces.Implementation and an "invoker_constructor" attribute of type
   _invocation.InvokerConstructor.
   """
-  __metaclass__ = abc.ABCMeta
 
   NAME = 'BlockingInvocationInlineServiceTest'
 
@@ -81,7 +84,7 @@
 
   def testSuccessfulUnaryRequestUnaryResponse(self):
     for (group, method), test_messages_sequence in (
-        self._digest.unary_unary_messages_sequences.iteritems()):
+        six.iteritems(self._digest.unary_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
 
@@ -92,7 +95,7 @@
 
   def testSuccessfulUnaryRequestStreamResponse(self):
     for (group, method), test_messages_sequence in (
-        self._digest.unary_stream_messages_sequences.iteritems()):
+        six.iteritems(self._digest.unary_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
 
@@ -104,7 +107,7 @@
 
   def testSuccessfulStreamRequestUnaryResponse(self):
     for (group, method), test_messages_sequence in (
-        self._digest.stream_unary_messages_sequences.iteritems()):
+        six.iteritems(self._digest.stream_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
 
@@ -115,7 +118,7 @@
 
   def testSuccessfulStreamRequestStreamResponse(self):
     for (group, method), test_messages_sequence in (
-        self._digest.stream_stream_messages_sequences.iteritems()):
+        six.iteritems(self._digest.stream_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
 
@@ -127,7 +130,7 @@
 
   def testSequentialInvocations(self):
     for (group, method), test_messages_sequence in (
-        self._digest.unary_unary_messages_sequences.iteritems()):
+        six.iteritems(self._digest.unary_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         first_request = test_messages.request()
         second_request = test_messages.request()
@@ -145,7 +148,7 @@
   def testParallelInvocations(self):
     pool = logging_pool.pool(test_constants.PARALLELISM)
     for (group, method), test_messages_sequence in (
-        self._digest.unary_unary_messages_sequences.iteritems()):
+        six.iteritems(self._digest.unary_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = []
         response_futures = []
@@ -167,7 +170,7 @@
   def testWaitingForSomeButNotAllParallelInvocations(self):
     pool = logging_pool.pool(test_constants.PARALLELISM)
     for (group, method), test_messages_sequence in (
-        self._digest.unary_unary_messages_sequences.iteritems()):
+        six.iteritems(self._digest.unary_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = []
         response_futures_to_indices = {}
@@ -181,7 +184,7 @@
 
         some_completed_response_futures_iterator = itertools.islice(
             futures.as_completed(response_futures_to_indices),
-            test_constants.PARALLELISM / 2)
+            test_constants.PARALLELISM // 2)
         for response_future in some_completed_response_futures_iterator:
           index = response_futures_to_indices[response_future]
           test_messages.verify(requests[index], response_future.result(), self)
@@ -205,7 +208,7 @@
 
   def testExpiredUnaryRequestUnaryResponse(self):
     for (group, method), test_messages_sequence in (
-        self._digest.unary_unary_messages_sequences.iteritems()):
+        six.iteritems(self._digest.unary_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
 
@@ -216,7 +219,7 @@
 
   def testExpiredUnaryRequestStreamResponse(self):
     for (group, method), test_messages_sequence in (
-        self._digest.unary_stream_messages_sequences.iteritems()):
+        six.iteritems(self._digest.unary_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
 
@@ -228,7 +231,7 @@
 
   def testExpiredStreamRequestUnaryResponse(self):
     for (group, method), test_messages_sequence in (
-        self._digest.stream_unary_messages_sequences.iteritems()):
+        six.iteritems(self._digest.stream_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
 
@@ -239,7 +242,7 @@
 
   def testExpiredStreamRequestStreamResponse(self):
     for (group, method), test_messages_sequence in (
-        self._digest.stream_stream_messages_sequences.iteritems()):
+        six.iteritems(self._digest.stream_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
 
@@ -251,7 +254,7 @@
 
   def testFailedUnaryRequestUnaryResponse(self):
     for (group, method), test_messages_sequence in (
-        self._digest.unary_unary_messages_sequences.iteritems()):
+        six.iteritems(self._digest.unary_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
 
@@ -261,7 +264,7 @@
 
   def testFailedUnaryRequestStreamResponse(self):
     for (group, method), test_messages_sequence in (
-        self._digest.unary_stream_messages_sequences.iteritems()):
+        six.iteritems(self._digest.unary_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
 
@@ -272,7 +275,7 @@
 
   def testFailedStreamRequestUnaryResponse(self):
     for (group, method), test_messages_sequence in (
-        self._digest.stream_unary_messages_sequences.iteritems()):
+        six.iteritems(self._digest.stream_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
 
@@ -282,7 +285,7 @@
 
   def testFailedStreamRequestStreamResponse(self):
     for (group, method), test_messages_sequence in (
-        self._digest.stream_stream_messages_sequences.iteritems()):
+        six.iteritems(self._digest.stream_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
 
diff --git a/src/python/grpcio/tests/unit/framework/interfaces/face/_digest.py b/src/python/grpcio/tests/unit/framework/interfaces/face/_digest.py
index 9304b6b..40c03f9 100644
--- a/src/python/grpcio/tests/unit/framework/interfaces/face/_digest.py
+++ b/src/python/grpcio/tests/unit/framework/interfaces/face/_digest.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -32,6 +32,8 @@
 import collections
 import threading
 
+import six
+
 # test_control, _service, and test_interfaces are referenced from specification
 # in this module.
 from grpc.framework.common import cardinality
@@ -363,7 +365,7 @@
   events = {}
   adaptations = {}
   messages = {}
-  for identifier, scenario in scenarios.iteritems():
+  for identifier, scenario in six.iteritems(scenarios):
     if identifier in identifiers:
       raise ValueError('Repeated identifier "(%s, %s)"!' % identifier)
 
diff --git a/src/python/grpcio/tests/unit/framework/interfaces/face/_future_invocation_asynchronous_event_service.py b/src/python/grpcio/tests/unit/framework/interfaces/face/_future_invocation_asynchronous_event_service.py
index 1d36a93..401b52f 100644
--- a/src/python/grpcio/tests/unit/framework/interfaces/face/_future_invocation_asynchronous_event_service.py
+++ b/src/python/grpcio/tests/unit/framework/interfaces/face/_future_invocation_asynchronous_event_service.py
@@ -29,6 +29,8 @@
 
 """Test code for the Face layer of RPC Framework."""
 
+from __future__ import division
+
 import abc
 import contextlib
 import itertools
@@ -36,6 +38,8 @@
 import unittest
 from concurrent import futures
 
+import six
+
 # test_interfaces is referenced from specification in this module.
 from grpc.framework.foundation import logging_pool
 from grpc.framework.interfaces.face import face
@@ -67,6 +71,9 @@
   def __iter__(self):
     return self
 
+  def __next__(self):
+    return self.next()
+
   def next(self):
     with self._condition:
       while self._paused:
@@ -104,14 +111,13 @@
           self._condition.wait()
 
 
-class TestCase(test_coverage.Coverage, unittest.TestCase):
+class TestCase(six.with_metaclass(abc.ABCMeta, test_coverage.Coverage, unittest.TestCase)):
   """A test of the Face layer of RPC Framework.
 
   Concrete subclasses must have an "implementation" attribute of type
   test_interfaces.Implementation and an "invoker_constructor" attribute of type
   _invocation.InvokerConstructor.
   """
-  __metaclass__ = abc.ABCMeta
 
   NAME = 'FutureInvocationAsynchronousEventServiceTest'
 
@@ -141,7 +147,7 @@
 
   def testSuccessfulUnaryRequestUnaryResponse(self):
     for (group, method), test_messages_sequence in (
-        self._digest.unary_unary_messages_sequences.iteritems()):
+        six.iteritems(self._digest.unary_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
         callback = _Callback()
@@ -156,7 +162,7 @@
 
   def testSuccessfulUnaryRequestStreamResponse(self):
     for (group, method), test_messages_sequence in (
-        self._digest.unary_stream_messages_sequences.iteritems()):
+        six.iteritems(self._digest.unary_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
 
@@ -168,7 +174,7 @@
 
   def testSuccessfulStreamRequestUnaryResponse(self):
     for (group, method), test_messages_sequence in (
-        self._digest.stream_unary_messages_sequences.iteritems()):
+        six.iteritems(self._digest.stream_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
         request_iterator = _PauseableIterator(iter(requests))
@@ -188,7 +194,7 @@
 
   def testSuccessfulStreamRequestStreamResponse(self):
     for (group, method), test_messages_sequence in (
-        self._digest.stream_stream_messages_sequences.iteritems()):
+        six.iteritems(self._digest.stream_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
         request_iterator = _PauseableIterator(iter(requests))
@@ -204,7 +210,7 @@
 
   def testSequentialInvocations(self):
     for (group, method), test_messages_sequence in (
-        self._digest.unary_unary_messages_sequences.iteritems()):
+        six.iteritems(self._digest.unary_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         first_request = test_messages.request()
         second_request = test_messages.request()
@@ -223,7 +229,7 @@
 
   def testParallelInvocations(self):
     for (group, method), test_messages_sequence in (
-        self._digest.unary_unary_messages_sequences.iteritems()):
+        six.iteritems(self._digest.unary_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         first_request = test_messages.request()
         second_request = test_messages.request()
@@ -239,7 +245,7 @@
         test_messages.verify(second_request, second_response, self)
 
     for (group, method), test_messages_sequence in (
-        self._digest.unary_unary_messages_sequences.iteritems()):
+        six.iteritems(self._digest.unary_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = []
         response_futures = []
@@ -259,7 +265,7 @@
   def testWaitingForSomeButNotAllParallelInvocations(self):
     pool = logging_pool.pool(test_constants.PARALLELISM)
     for (group, method), test_messages_sequence in (
-        self._digest.unary_unary_messages_sequences.iteritems()):
+        six.iteritems(self._digest.unary_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = []
         response_futures_to_indices = {}
@@ -273,7 +279,7 @@
 
         some_completed_response_futures_iterator = itertools.islice(
             futures.as_completed(response_futures_to_indices),
-            test_constants.PARALLELISM / 2)
+            test_constants.PARALLELISM // 2)
         for response_future in some_completed_response_futures_iterator:
           index = response_futures_to_indices[response_future]
           test_messages.verify(requests[index], response_future.result(), self)
@@ -281,7 +287,7 @@
 
   def testCancelledUnaryRequestUnaryResponse(self):
     for (group, method), test_messages_sequence in (
-        self._digest.unary_unary_messages_sequences.iteritems()):
+        six.iteritems(self._digest.unary_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
         callback = _Callback()
@@ -298,7 +304,7 @@
 
   def testCancelledUnaryRequestStreamResponse(self):
     for (group, method), test_messages_sequence in (
-        self._digest.unary_stream_messages_sequences.iteritems()):
+        six.iteritems(self._digest.unary_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
 
@@ -312,7 +318,7 @@
 
   def testCancelledStreamRequestUnaryResponse(self):
     for (group, method), test_messages_sequence in (
-        self._digest.stream_unary_messages_sequences.iteritems()):
+        six.iteritems(self._digest.stream_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
         callback = _Callback()
@@ -329,7 +335,7 @@
 
   def testCancelledStreamRequestStreamResponse(self):
     for (group, method), test_messages_sequence in (
-        self._digest.stream_stream_messages_sequences.iteritems()):
+        six.iteritems(self._digest.stream_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
 
@@ -343,7 +349,7 @@
 
   def testExpiredUnaryRequestUnaryResponse(self):
     for (group, method), test_messages_sequence in (
-        self._digest.unary_unary_messages_sequences.iteritems()):
+        six.iteritems(self._digest.unary_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
         callback = _Callback()
@@ -360,7 +366,7 @@
 
   def testExpiredUnaryRequestStreamResponse(self):
     for (group, method), test_messages_sequence in (
-        self._digest.unary_stream_messages_sequences.iteritems()):
+        six.iteritems(self._digest.unary_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
 
@@ -372,7 +378,7 @@
 
   def testExpiredStreamRequestUnaryResponse(self):
     for (group, method), test_messages_sequence in (
-        self._digest.stream_unary_messages_sequences.iteritems()):
+        six.iteritems(self._digest.stream_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
         callback = _Callback()
@@ -389,7 +395,7 @@
 
   def testExpiredStreamRequestStreamResponse(self):
     for (group, method), test_messages_sequence in (
-        self._digest.stream_stream_messages_sequences.iteritems()):
+        six.iteritems(self._digest.stream_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
 
@@ -401,7 +407,7 @@
 
   def testFailedUnaryRequestUnaryResponse(self):
     for (group, method), test_messages_sequence in (
-        self._digest.unary_unary_messages_sequences.iteritems()):
+        six.iteritems(self._digest.unary_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
         callback = _Callback()
@@ -423,7 +429,7 @@
 
   def testFailedUnaryRequestStreamResponse(self):
     for (group, method), test_messages_sequence in (
-        self._digest.unary_stream_messages_sequences.iteritems()):
+        six.iteritems(self._digest.unary_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         request = test_messages.request()
 
@@ -438,7 +444,7 @@
 
   def testFailedStreamRequestUnaryResponse(self):
     for (group, method), test_messages_sequence in (
-        self._digest.stream_unary_messages_sequences.iteritems()):
+        six.iteritems(self._digest.stream_unary_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
         callback = _Callback()
@@ -460,7 +466,7 @@
 
   def testFailedStreamRequestStreamResponse(self):
     for (group, method), test_messages_sequence in (
-        self._digest.stream_stream_messages_sequences.iteritems()):
+        six.iteritems(self._digest.stream_stream_messages_sequences)):
       for test_messages in test_messages_sequence:
         requests = test_messages.requests()
 
diff --git a/src/python/grpcio/tests/unit/framework/interfaces/face/_invocation.py b/src/python/grpcio/tests/unit/framework/interfaces/face/_invocation.py
index 448e845..ff38dc2 100644
--- a/src/python/grpcio/tests/unit/framework/interfaces/face/_invocation.py
+++ b/src/python/grpcio/tests/unit/framework/interfaces/face/_invocation.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -31,6 +31,8 @@
 
 import abc
 
+import six
+
 from grpc.framework.common import cardinality
 
 _CARDINALITY_TO_GENERIC_BLOCKING_BEHAVIOR = {
@@ -62,9 +64,8 @@
 }
 
 
-class Invoker(object):
+class Invoker(six.with_metaclass(abc.ABCMeta)):
   """A type used to invoke test RPCs."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def blocking(self, group, name):
@@ -82,9 +83,8 @@
     raise NotImplementedError()
 
 
-class InvokerConstructor(object):
+class InvokerConstructor(six.with_metaclass(abc.ABCMeta)):
   """A type used to create Invokers."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def name(self):
diff --git a/src/python/grpcio/tests/unit/framework/interfaces/face/_service.py b/src/python/grpcio/tests/unit/framework/interfaces/face/_service.py
index 28941e2..bec8d51 100644
--- a/src/python/grpcio/tests/unit/framework/interfaces/face/_service.py
+++ b/src/python/grpcio/tests/unit/framework/interfaces/face/_service.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -31,16 +31,16 @@
 
 import abc
 
+import six
+
 # face is referenced from specification in this module.
 from grpc.framework.interfaces.face import face  # pylint: disable=unused-import
 from tests.unit.framework.interfaces.face import test_interfaces
 
 
-class UnaryUnaryTestMethodImplementation(test_interfaces.Method):
+class UnaryUnaryTestMethodImplementation(six.with_metaclass(abc.ABCMeta, test_interfaces.Method)):
   """A controllable implementation of a unary-unary method."""
 
-  __metaclass__ = abc.ABCMeta
-
   @abc.abstractmethod
   def service(self, request, response_callback, context, control):
     """Services an RPC that accepts one message and produces one message.
@@ -59,11 +59,9 @@
     raise NotImplementedError()
 
 
-class UnaryUnaryTestMessages(object):
+class UnaryUnaryTestMessages(six.with_metaclass(abc.ABCMeta)):
   """A type for unary-request-unary-response message pairings."""
 
-  __metaclass__ = abc.ABCMeta
-
   @abc.abstractmethod
   def request(self):
     """Affords a request message.
@@ -93,11 +91,9 @@
     raise NotImplementedError()
 
 
-class UnaryStreamTestMethodImplementation(test_interfaces.Method):
+class UnaryStreamTestMethodImplementation(six.with_metaclass(abc.ABCMeta, test_interfaces.Method)):
   """A controllable implementation of a unary-stream method."""
 
-  __metaclass__ = abc.ABCMeta
-
   @abc.abstractmethod
   def service(self, request, response_consumer, context, control):
     """Services an RPC that takes one message and produces a stream of messages.
@@ -116,11 +112,9 @@
     raise NotImplementedError()
 
 
-class UnaryStreamTestMessages(object):
+class UnaryStreamTestMessages(six.with_metaclass(abc.ABCMeta)):
   """A type for unary-request-stream-response message pairings."""
 
-  __metaclass__ = abc.ABCMeta
-
   @abc.abstractmethod
   def request(self):
     """Affords a request message.
@@ -150,11 +144,9 @@
     raise NotImplementedError()
 
 
-class StreamUnaryTestMethodImplementation(test_interfaces.Method):
+class StreamUnaryTestMethodImplementation(six.with_metaclass(abc.ABCMeta, test_interfaces.Method)):
   """A controllable implementation of a stream-unary method."""
 
-  __metaclass__ = abc.ABCMeta
-
   @abc.abstractmethod
   def service(self, response_callback, context, control):
     """Services an RPC that takes a stream of messages and produces one message.
@@ -180,11 +172,9 @@
     raise NotImplementedError()
 
 
-class StreamUnaryTestMessages(object):
+class StreamUnaryTestMessages(six.with_metaclass(abc.ABCMeta)):
   """A type for stream-request-unary-response message pairings."""
 
-  __metaclass__ = abc.ABCMeta
-
   @abc.abstractmethod
   def requests(self):
     """Affords a sequence of request messages.
@@ -214,11 +204,9 @@
     raise NotImplementedError()
 
 
-class StreamStreamTestMethodImplementation(test_interfaces.Method):
+class StreamStreamTestMethodImplementation(six.with_metaclass(abc.ABCMeta, test_interfaces.Method)):
   """A controllable implementation of a stream-stream method."""
 
-  __metaclass__ = abc.ABCMeta
-
   @abc.abstractmethod
   def service(self, response_consumer, context, control):
     """Services an RPC that accepts and produces streams of messages.
@@ -244,11 +232,9 @@
     raise NotImplementedError()
 
 
-class StreamStreamTestMessages(object):
+class StreamStreamTestMessages(six.with_metaclass(abc.ABCMeta)):
   """A type for stream-request-stream-response message pairings."""
 
-  __metaclass__ = abc.ABCMeta
-
   @abc.abstractmethod
   def requests(self):
     """Affords a sequence of request messages.
@@ -278,11 +264,9 @@
     raise NotImplementedError()
 
 
-class TestService(object):
+class TestService(six.with_metaclass(abc.ABCMeta)):
   """A specification of implemented methods to use in tests."""
 
-  __metaclass__ = abc.ABCMeta
-
   @abc.abstractmethod
   def unary_unary_scenarios(self):
     """Affords unary-request-unary-response test methods and their messages.
diff --git a/src/python/grpcio/tests/unit/framework/interfaces/face/test_interfaces.py b/src/python/grpcio/tests/unit/framework/interfaces/face/test_interfaces.py
index b2b5c10..a5e28b7 100644
--- a/src/python/grpcio/tests/unit/framework/interfaces/face/test_interfaces.py
+++ b/src/python/grpcio/tests/unit/framework/interfaces/face/test_interfaces.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -31,13 +31,14 @@
 
 import abc
 
+import six
+
 from grpc.framework.common import cardinality  # pylint: disable=unused-import
 from grpc.framework.interfaces.face import face  # pylint: disable=unused-import
 
 
-class Method(object):
+class Method(six.with_metaclass(abc.ABCMeta)):
   """Specifies a method to be used in tests."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def group(self):
@@ -126,9 +127,8 @@
     raise NotImplementedError()
 
 
-class Implementation(object):
+class Implementation(six.with_metaclass(abc.ABCMeta)):
   """Specifies an implementation of the Face layer."""
-  __metaclass__ = abc.ABCMeta
 
   @abc.abstractmethod
   def instantiate(
diff --git a/src/python/grpcio/tests/unit/framework/interfaces/links/test_cases.py b/src/python/grpcio/tests/unit/framework/interfaces/links/test_cases.py
index dace6c2..2283e79 100644
--- a/src/python/grpcio/tests/unit/framework/interfaces/links/test_cases.py
+++ b/src/python/grpcio/tests/unit/framework/interfaces/links/test_cases.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -33,6 +33,8 @@
 import abc
 import unittest  # pylint: disable=unused-import
 
+import six
+
 from grpc.framework.interfaces.links import links
 from tests.unit.framework.common import test_constants
 from tests.unit.framework.interfaces.links import test_utilities
@@ -58,13 +60,12 @@
 _TRANSMISSION_METHOD = 'TestMethod'
 
 
-class TransmissionTest(object):
+class TransmissionTest(six.with_metaclass(abc.ABCMeta)):
   """Tests ticket transmission between two connected links.
 
   This class must be mixed into a unittest.TestCase that implements the abstract
   methods it provides.
   """
-  __metaclass__ = abc.ABCMeta
 
   # This is a unittest.TestCase mix-in.
   # pylint: disable=invalid-name
diff --git a/src/python/grpcio/tests/unit/test_common.py b/src/python/grpcio/tests/unit/test_common.py
index 29431bf..824f1cb 100644
--- a/src/python/grpcio/tests/unit/test_common.py
+++ b/src/python/grpcio/tests/unit/test_common.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -31,6 +31,8 @@
 
 import collections
 
+import six
+
 INVOCATION_INITIAL_METADATA = ((b'0', b'abc'), (b'1', b'def'), (b'2', b'ghi'),)
 SERVICE_INITIAL_METADATA = ((b'3', b'jkl'), (b'4', b'mno'), (b'5', b'pqr'),)
 SERVICE_TERMINAL_METADATA = ((b'6', b'stu'), (b'7', b'vwx'), (b'8', b'yza'),)
@@ -65,7 +67,7 @@
     key, value = tuple(key_value_pair)
     transmitted[key].append(value)
 
-  for key, values in original.iteritems():
+  for key, values in six.iteritems(original):
     transmitted_values = transmitted[key]
     transmitted_iterator = iter(transmitted_values)
     try:
diff --git a/src/ruby/ext/grpc/rb_call.c b/src/ruby/ext/grpc/rb_call.c
index af05ddf..cd0aa6a 100644
--- a/src/ruby/ext/grpc/rb_call.c
+++ b/src/ruby/ext/grpc/rb_call.c
@@ -72,6 +72,10 @@
  * the flags used to create metadata from a Hash */
 static ID id_flags;
 
+/* id_credentials is the name of the hidden ivar that preserves the value
+ * of the credentials added to the call */
+static ID id_credentials;
+
 /* id_input_md is the name of the hidden ivar that preserves the hash used to
  * create metadata, so that references to the strings it contains last as long
  * as the call the metadata is added to. */
@@ -299,6 +303,7 @@
              "grpc_call_set_credentials failed with %s (code=%d)",
              grpc_call_error_detail_of(err), err);
   }
+  rb_ivar_set(self, id_credentials, credentials);
   return Qnil;
 }
 
@@ -859,6 +864,7 @@
   id_cq = rb_intern("__cq");
   id_flags = rb_intern("__flags");
   id_input_md = rb_intern("__input_md");
+  id_credentials = rb_intern("__credentials");
 
   /* Ids used in constructing the batch result. */
   sym_send_message = ID2SYM(rb_intern("send_message"));
diff --git a/src/ruby/ext/grpc/rb_call_credentials.c b/src/ruby/ext/grpc/rb_call_credentials.c
index 2426f10..2b978fc 100644
--- a/src/ruby/ext/grpc/rb_call_credentials.c
+++ b/src/ruby/ext/grpc/rb_call_credentials.c
@@ -41,6 +41,7 @@
 #include <grpc/grpc.h>
 #include <grpc/grpc_security.h>
 #include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
 
 #include "rb_call.h"
 #include "rb_event_thread.h"
@@ -50,9 +51,9 @@
  * grpc_call_credentials */
 static VALUE grpc_rb_cCallCredentials = Qnil;
 
-/* grpc_rb_call_credentials wraps a grpc_call_credentials. It provides a peer
- * ruby object, 'mark' to minimize copying when a credential is created from
- * ruby. */
+/* grpc_rb_call_credentials wraps a grpc_call_credentials. It provides a mark
+ * object that is used to hold references to any objects used to create the
+ * credentials. */
 typedef struct grpc_rb_call_credentials {
   /* Holder of ruby objects involved in contructing the credentials */
   VALUE mark;
@@ -81,14 +82,23 @@
 static VALUE grpc_rb_call_credentials_callback_rescue(VALUE args,
                                                       VALUE exception_object) {
   VALUE result = rb_hash_new();
+  VALUE backtrace = rb_funcall(
+      rb_funcall(exception_object, rb_intern("backtrace"), 0),
+      rb_intern("join"),
+      1, rb_str_new2("\n\tfrom "));
+  VALUE exception_info = rb_funcall(exception_object, rb_intern("to_s"), 0);
+  const char *exception_classname = rb_obj_classname(exception_object);
   (void)args;
+  gpr_log(GPR_INFO, "Call credentials callback failed: %s: %s\n%s",
+          exception_classname, StringValueCStr(exception_info),
+          StringValueCStr(backtrace));
   rb_hash_aset(result, rb_str_new2("metadata"), Qnil);
   /* Currently only gives the exception class name. It should be possible get
      more details */
   rb_hash_aset(result, rb_str_new2("status"),
                INT2NUM(GRPC_STATUS_PERMISSION_DENIED));
   rb_hash_aset(result, rb_str_new2("details"),
-               rb_str_new2(rb_obj_classname(exception_object)));
+               rb_str_new2(exception_classname));
   return result;
 }
 
@@ -146,13 +156,8 @@
     return;
   }
   wrapper = (grpc_rb_call_credentials *)p;
-
-  /* Delete the wrapped object if the mark object is Qnil, which indicates that
-   * no other object is the actual owner. */
-  if (wrapper->wrapped != NULL && wrapper->mark == Qnil) {
-    grpc_call_credentials_release(wrapper->wrapped);
-    wrapper->wrapped = NULL;
-  }
+  grpc_call_credentials_release(wrapper->wrapped);
+  wrapper->wrapped = NULL;
 
   xfree(p);
 }
@@ -164,8 +169,6 @@
     return;
   }
   wrapper = (grpc_rb_call_credentials *)p;
-
-  /* If it's not already cleaned up, mark the mark object */
   if (wrapper->mark != Qnil) {
     rb_gc_mark(wrapper->mark);
   }
@@ -194,7 +197,7 @@
 /* Creates a wrapping object for a given call credentials. This should only be
  * called with grpc_call_credentials objects that are not already associated
  * with any Ruby object */
-VALUE grpc_rb_wrap_call_credentials(grpc_call_credentials *c) {
+VALUE grpc_rb_wrap_call_credentials(grpc_call_credentials *c, VALUE mark) {
   VALUE rb_wrapper;
   grpc_rb_call_credentials *wrapper;
   if (c == NULL) {
@@ -204,6 +207,7 @@
   TypedData_Get_Struct(rb_wrapper, grpc_rb_call_credentials,
                        &grpc_rb_call_credentials_data_type, wrapper);
   wrapper->wrapped = c;
+  wrapper->mark = mark;
   return rb_wrapper;
 }
 
@@ -267,6 +271,7 @@
     return Qnil;
   }
 
+  wrapper->mark = proc;
   wrapper->wrapped = creds;
   rb_ivar_set(self, id_callback, proc);
 
@@ -277,15 +282,18 @@
                                               VALUE self) {
   grpc_call_credentials *creds;
   grpc_call_credentials *other;
+  VALUE mark;
   if (argc == 0) {
     return self;
   }
+  mark = rb_ary_new();
   creds = grpc_rb_get_wrapped_call_credentials(self);
   for (int i = 0; i < argc; i++) {
+    rb_ary_push(mark, argv[i]);
     other = grpc_rb_get_wrapped_call_credentials(argv[i]);
     creds = grpc_composite_call_credentials_create(creds, other, NULL);
   }
-  return grpc_rb_wrap_call_credentials(creds);
+  return grpc_rb_wrap_call_credentials(creds, mark);
 }
 
 void Init_grpc_call_credentials() {
diff --git a/src/ruby/ext/grpc/rb_channel.c b/src/ruby/ext/grpc/rb_channel.c
index 0e6badb..e1aaa53 100644
--- a/src/ruby/ext/grpc/rb_channel.c
+++ b/src/ruby/ext/grpc/rb_channel.c
@@ -70,11 +70,10 @@
 /* Used during the conversion of a hash to channel args during channel setup */
 static VALUE grpc_rb_cChannelArgs;
 
-/* grpc_rb_channel wraps a grpc_channel.  It provides a peer ruby object,
- * 'mark' to minimize copying when a channel is created from ruby. */
+/* grpc_rb_channel wraps a grpc_channel. */
 typedef struct grpc_rb_channel {
-  /* Holder of ruby objects involved in constructing the channel */
-  VALUE mark;
+  VALUE credentials;
+
   /* The actual channel */
   grpc_channel *wrapped;
 } grpc_rb_channel;
@@ -87,13 +86,8 @@
   };
   ch = (grpc_rb_channel *)p;
 
-  /* Deletes the wrapped object if the mark object is Qnil, which indicates
-   * that no other object is the actual owner. */
-  if (ch->wrapped != NULL && ch->mark == Qnil) {
+  if (ch->wrapped != NULL) {
     grpc_channel_destroy(ch->wrapped);
-    rb_warning("channel gc: destroyed the c channel");
-  } else {
-    rb_warning("channel gc: did not destroy the c channel");
   }
 
   xfree(p);
@@ -106,8 +100,8 @@
     return;
   }
   channel = (grpc_rb_channel *)p;
-  if (channel->mark != Qnil) {
-    rb_gc_mark(channel->mark);
+  if (channel->credentials != Qnil) {
+    rb_gc_mark(channel->credentials);
   }
 }
 
@@ -125,7 +119,7 @@
 static VALUE grpc_rb_channel_alloc(VALUE cls) {
   grpc_rb_channel *wrapper = ALLOC(grpc_rb_channel);
   wrapper->wrapped = NULL;
-  wrapper->mark = Qnil;
+  wrapper->credentials = Qnil;
   return TypedData_Wrap_Struct(cls, &grpc_channel_data_type, wrapper);
 }
 
@@ -162,6 +156,7 @@
     }
     ch = grpc_insecure_channel_create(target_chars, &args, NULL);
   } else {
+    wrapper->credentials = credentials;
     creds = grpc_rb_get_wrapped_channel_credentials(credentials);
     ch = grpc_secure_channel_create(creds, target_chars, &args, NULL);
   }
@@ -330,7 +325,6 @@
   if (ch != NULL) {
     grpc_channel_destroy(ch);
     wrapper->wrapped = NULL;
-    wrapper->mark = Qnil;
   }
 
   return Qnil;
diff --git a/src/ruby/ext/grpc/rb_channel_credentials.c b/src/ruby/ext/grpc/rb_channel_credentials.c
index 8c6fc3b..f649084 100644
--- a/src/ruby/ext/grpc/rb_channel_credentials.c
+++ b/src/ruby/ext/grpc/rb_channel_credentials.c
@@ -49,8 +49,8 @@
 static VALUE grpc_rb_cChannelCredentials = Qnil;
 
 /* grpc_rb_channel_credentials wraps a grpc_channel_credentials.  It provides a
- * peer ruby object, 'mark' to minimize copying when a credential is
- * created from ruby. */
+ * mark object that is used to hold references to any objects used to create
+ * the credentials. */
 typedef struct grpc_rb_channel_credentials {
   /* Holder of ruby objects involved in constructing the credentials */
   VALUE mark;
@@ -66,13 +66,8 @@
     return;
   };
   wrapper = (grpc_rb_channel_credentials *)p;
-
-  /* Delete the wrapped object if the mark object is Qnil, which indicates that
-   * no other object is the actual owner. */
-  if (wrapper->wrapped != NULL && wrapper->mark == Qnil) {
-    grpc_channel_credentials_release(wrapper->wrapped);
-    wrapper->wrapped = NULL;
-  }
+  grpc_channel_credentials_release(wrapper->wrapped);
+  wrapper->wrapped = NULL;
 
   xfree(p);
 }
@@ -85,7 +80,6 @@
   }
   wrapper = (grpc_rb_channel_credentials *)p;
 
-  /* If it's not already cleaned up, mark the mark object */
   if (wrapper->mark != Qnil) {
     rb_gc_mark(wrapper->mark);
   }
@@ -114,7 +108,7 @@
 /* Creates a wrapping object for a given channel credentials. This should only
  * be called with grpc_channel_credentials objects that are not already
  * associated with any Ruby object. */
-VALUE grpc_rb_wrap_channel_credentials(grpc_channel_credentials *c) {
+VALUE grpc_rb_wrap_channel_credentials(grpc_channel_credentials *c, VALUE mark) {
   VALUE rb_wrapper;
   grpc_rb_channel_credentials *wrapper;
   if (c == NULL) {
@@ -124,6 +118,7 @@
   TypedData_Get_Struct(rb_wrapper, grpc_rb_channel_credentials,
                        &grpc_rb_channel_credentials_data_type, wrapper);
   wrapper->wrapped = c;
+  wrapper->mark = mark;
   return rb_wrapper;
 }
 
@@ -222,11 +217,15 @@
                                                  VALUE self) {
   grpc_channel_credentials *creds;
   grpc_call_credentials *other;
+  VALUE mark;
   if (argc == 0) {
     return self;
   }
+  mark = rb_ary_new();
+  rb_ary_push(mark, self);
   creds = grpc_rb_get_wrapped_channel_credentials(self);
   for (int i = 0; i < argc; i++) {
+    rb_ary_push(mark, argv[i]);
     other = grpc_rb_get_wrapped_call_credentials(argv[i]);
     creds = grpc_composite_channel_credentials_create(creds, other, NULL);
     if (creds == NULL) {
@@ -234,7 +233,7 @@
                "Failed to compose channel and call credentials");
     }
   }
-  return grpc_rb_wrap_channel_credentials(creds);
+  return grpc_rb_wrap_channel_credentials(creds, mark);
 }
 
 void Init_grpc_channel_credentials() {
diff --git a/summerofcode/ideas.md b/summerofcode/ideas.md
index 83f2cec..d87cf1b 100644
--- a/summerofcode/ideas.md
+++ b/summerofcode/ideas.md
@@ -36,7 +36,7 @@
  * **Required skills:** Python programming language, PyPy Python interpreter.
  * **Likely mentors:** [Nathaniel Manista](https://github.com/nathanielmanistaatgoogle), [Masood Malekghassemi](https://github.com/soltanmm).
 1. Develop and test Python 3.5 Support for gRPC. Make necessary changes to port gRPC and package it for supported platforms.
- * **Required skills:** Python programming language, PyPy Python interpreter.
+ * **Required skills:** Python programming language, Python 3.5 interpreter.
  * **Likely mentors:** [Nathaniel Manista](https://github.com/nathanielmanistaatgoogle), [Masood Malekghassemi](https://github.com/soltanmm).
  
 gRPC Ruby/Java:
diff --git a/templates/composer.json.template b/templates/composer.json.template
new file mode 100644
index 0000000..275b465
--- /dev/null
+++ b/templates/composer.json.template
@@ -0,0 +1,27 @@
+%YAML 1.2
+--- |
+  {
+    "name": "grpc/grpc",
+    "type": "library",
+    "description": "gRPC library for PHP",
+    "version": "${settings.php_version.php()}",
+    "keywords": ["rpc"],
+    "homepage": "http://grpc.io",
+    "license": "BSD-3-Clause",
+    "repositories": [
+      {
+        "type": "vcs",
+        "url": "https://github.com/stanley-cheung/Protobuf-PHP"
+      }
+    ],
+    "require": {
+      "php": ">=5.5.0",
+      "datto/protobuf-php": "dev-master",
+      "google/auth": "v0.7"
+    },
+    "autoload": {
+      "psr-4": {
+        "Grpc\\": "src/php/lib/Grpc/"
+      }
+    }
+  }
diff --git a/templates/package.xml.template b/templates/package.xml.template
index 8f75740..2f498c02 100644
--- a/templates/package.xml.template
+++ b/templates/package.xml.template
@@ -15,8 +15,8 @@
    <date>2016-03-01</date>
    <time>16:06:07</time>
    <version>
-    <release>0.14.0</release>
-    <api>0.14.0</api>
+    <release>${settings.php_version.php()}</release>
+    <api>${settings.php_version.php()}</api>
    </version>
    <stability>
     <release>beta</release>
@@ -157,8 +157,8 @@
     </release>
     <release>
      <version>
-      <release>0.14.0</release>
-      <api>0.14.0</api>
+      <release>${settings.php_version.php()}</release>
+      <api>${settings.php_version.php()}</api>
      </version>
      <stability>
       <release>beta</release>
diff --git a/templates/src/core/surface/version.c.template b/templates/src/core/lib/surface/version.c.template
similarity index 100%
rename from templates/src/core/surface/version.c.template
rename to templates/src/core/lib/surface/version.c.template
diff --git a/templates/test/core/end2end/end2end_defs.include b/templates/test/core/end2end/end2end_defs.include
index 929827e..461c8eb 100644
--- a/templates/test/core/end2end/end2end_defs.include
+++ b/templates/test/core/end2end/end2end_defs.include
@@ -36,7 +36,9 @@
 /* This file is auto-generated */
 
 #include "test/core/end2end/end2end_tests.h"
+
 #include <string.h>
+
 #include <grpc/support/log.h>
 
 % for test in tests:
@@ -64,4 +66,4 @@
     gpr_log(GPR_DEBUG, "not a test: '%s'", argv[i]);
     abort();
   }
-}</%def>
\ No newline at end of file
+}</%def>
diff --git a/templates/tools/dockerfile/clang_update.include b/templates/tools/dockerfile/clang_update.include
new file mode 100644
index 0000000..83ab3e0
--- /dev/null
+++ b/templates/tools/dockerfile/clang_update.include
@@ -0,0 +1,32 @@
+#=================
+# Update clang to a version with improved tsan
+
+RUN apt-get update && apt-get -y install python cmake && apt-get clean
+
+RUN git clone -n -b release_38 http://llvm.org/git/llvm.git && ${'\\'}
+  cd llvm && git checkout ad57503 && cd ..
+RUN git clone -n -b release_38 http://llvm.org/git/clang.git && ${'\\'}
+  cd clang && git checkout ad2c56e && cd ..
+RUN git clone -n -b release_38 http://llvm.org/git/compiler-rt.git && ${'\\'}
+  cd compiler-rt && git checkout 3176922 && cd ..
+RUN git clone -n -b release_38 ${'\\'}
+  http://llvm.org/git/clang-tools-extra.git && cd clang-tools-extra && ${'\\'}
+  git checkout c288525 && cd ..
+RUN git clone -n -b release_38 http://llvm.org/git/libcxx.git && ${'\\'}
+  cd libcxx && git checkout fda3549  && cd ..
+RUN git clone -n -b release_38 http://llvm.org/git/libcxxabi.git && ${'\\'}
+  cd libcxxabi && git checkout 8d4e51d && cd ..
+
+RUN mv clang llvm/tools
+RUN mv compiler-rt llvm/projects
+RUN mv clang-tools-extra llvm/tools/clang/tools
+RUN mv libcxx llvm/projects
+RUN mv libcxxabi llvm/projects
+
+RUN mkdir llvm-build
+RUN cd llvm-build && cmake ${'\\'}
+  -DCMAKE_BUILD_TYPE:STRING=Release ${'\\'}
+  -DCMAKE_INSTALL_PREFIX:STRING=/usr ${'\\'}
+  -DLLVM_TARGETS_TO_BUILD:STRING=X86 ${'\\'}
+  ../llvm
+RUN make -C llvm-build && make -C llvm-build install && rm -rf llvm-build
diff --git a/templates/tools/dockerfile/test/cxx_jessie_x64/Dockerfile.template b/templates/tools/dockerfile/test/cxx_jessie_x64/Dockerfile.template
index 842c534..eb11ce3 100644
--- a/templates/tools/dockerfile/test/cxx_jessie_x64/Dockerfile.template
+++ b/templates/tools/dockerfile/test/cxx_jessie_x64/Dockerfile.template
@@ -33,7 +33,7 @@
   
   <%include file="../../apt_get_basic.include"/>
   <%include file="../../cxx_deps.include"/>
+  <%include file="../../clang_update.include"/>
   <%include file="../../run_tests_addons.include"/>
   # Define the default command.
   CMD ["bash"]
-  
\ No newline at end of file
diff --git a/test/core/bad_client/bad_client.c b/test/core/bad_client/bad_client.c
index ba19013..2e9623e 100644
--- a/test/core/bad_client/bad_client.c
+++ b/test/core/bad_client/bad_client.c
@@ -33,13 +33,13 @@
 
 #include "test/core/bad_client/bad_client.h"
 
-#include "src/core/channel/channel_stack.h"
-#include "src/core/channel/http_server_filter.h"
-#include "src/core/iomgr/endpoint_pair.h"
-#include "src/core/surface/completion_queue.h"
-#include "src/core/surface/server.h"
-#include "src/core/support/string.h"
-#include "src/core/transport/chttp2_transport.h"
+#include "src/core/lib/channel/channel_stack.h"
+#include "src/core/lib/channel/http_server_filter.h"
+#include "src/core/lib/iomgr/endpoint_pair.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/surface/completion_queue.h"
+#include "src/core/lib/surface/server.h"
+#include "src/core/lib/transport/chttp2_transport.h"
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/sync.h>
@@ -155,9 +155,9 @@
     grpc_exec_ctx_finish(&exec_ctx);
   }
   grpc_server_shutdown_and_notify(a.server, a.cq, NULL);
-  GPR_ASSERT(grpc_completion_queue_pluck(a.cq, NULL,
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(1),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 a.cq, NULL, GRPC_TIMEOUT_SECONDS_TO_DEADLINE(1), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(a.server);
   grpc_completion_queue_destroy(a.cq);
   gpr_slice_buffer_destroy(&outgoing);
diff --git a/test/core/bad_client/tests/badreq.c b/test/core/bad_client/tests/badreq.c
index 6d59d25..fd3d13f 100644
--- a/test/core/bad_client/tests/badreq.c
+++ b/test/core/bad_client/tests/badreq.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,8 +35,8 @@
 
 #include <string.h>
 
+#include "src/core/lib/surface/server.h"
 #include "test/core/end2end/cq_verifier.h"
-#include "src/core/surface/server.h"
 
 #define PFX_STR                      \
   "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n" \
@@ -45,9 +45,9 @@
 static void verifier(grpc_server *server, grpc_completion_queue *cq,
                      void *registered_method) {
   while (grpc_server_has_open_connections(server)) {
-    GPR_ASSERT(grpc_completion_queue_next(cq,
-                                          GRPC_TIMEOUT_MILLIS_TO_DEADLINE(20),
-                                          NULL).type == GRPC_QUEUE_TIMEOUT);
+    GPR_ASSERT(grpc_completion_queue_next(
+                   cq, GRPC_TIMEOUT_MILLIS_TO_DEADLINE(20), NULL)
+                   .type == GRPC_QUEUE_TIMEOUT);
   }
 }
 
diff --git a/test/core/bad_client/tests/connection_prefix.c b/test/core/bad_client/tests/connection_prefix.c
index 66ff8c2..87826af 100644
--- a/test/core/bad_client/tests/connection_prefix.c
+++ b/test/core/bad_client/tests/connection_prefix.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,15 +31,15 @@
  *
  */
 
+#include "src/core/lib/surface/server.h"
 #include "test/core/bad_client/bad_client.h"
-#include "src/core/surface/server.h"
 
 static void verifier(grpc_server *server, grpc_completion_queue *cq,
                      void *registered_method) {
   while (grpc_server_has_open_connections(server)) {
-    GPR_ASSERT(grpc_completion_queue_next(cq,
-                                          GRPC_TIMEOUT_MILLIS_TO_DEADLINE(20),
-                                          NULL).type == GRPC_QUEUE_TIMEOUT);
+    GPR_ASSERT(grpc_completion_queue_next(
+                   cq, GRPC_TIMEOUT_MILLIS_TO_DEADLINE(20), NULL)
+                   .type == GRPC_QUEUE_TIMEOUT);
   }
 }
 
diff --git a/test/core/bad_client/tests/headers.c b/test/core/bad_client/tests/headers.c
index 2186a4f..f66f14d 100644
--- a/test/core/bad_client/tests/headers.c
+++ b/test/core/bad_client/tests/headers.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,8 +31,8 @@
  *
  */
 
+#include "src/core/lib/surface/server.h"
 #include "test/core/bad_client/bad_client.h"
-#include "src/core/surface/server.h"
 
 #define PFX_STR                      \
   "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n" \
@@ -41,9 +41,9 @@
 static void verifier(grpc_server *server, grpc_completion_queue *cq,
                      void *registered_method) {
   while (grpc_server_has_open_connections(server)) {
-    GPR_ASSERT(grpc_completion_queue_next(cq,
-                                          GRPC_TIMEOUT_MILLIS_TO_DEADLINE(20),
-                                          NULL).type == GRPC_QUEUE_TIMEOUT);
+    GPR_ASSERT(grpc_completion_queue_next(
+                   cq, GRPC_TIMEOUT_MILLIS_TO_DEADLINE(20), NULL)
+                   .type == GRPC_QUEUE_TIMEOUT);
   }
 }
 
diff --git a/test/core/bad_client/tests/initial_settings_frame.c b/test/core/bad_client/tests/initial_settings_frame.c
index fb6149c..b303f03 100644
--- a/test/core/bad_client/tests/initial_settings_frame.c
+++ b/test/core/bad_client/tests/initial_settings_frame.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,8 +31,8 @@
  *
  */
 
+#include "src/core/lib/surface/server.h"
 #include "test/core/bad_client/bad_client.h"
-#include "src/core/surface/server.h"
 
 #define PFX_STR "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n"
 #define ONE_SETTING_HDR "\x00\x00\x06\x04\x00\x00\x00\x00\x00"
@@ -40,9 +40,9 @@
 static void verifier(grpc_server *server, grpc_completion_queue *cq,
                      void *registered_method) {
   while (grpc_server_has_open_connections(server)) {
-    GPR_ASSERT(grpc_completion_queue_next(cq,
-                                          GRPC_TIMEOUT_MILLIS_TO_DEADLINE(20),
-                                          NULL).type == GRPC_QUEUE_TIMEOUT);
+    GPR_ASSERT(grpc_completion_queue_next(
+                   cq, GRPC_TIMEOUT_MILLIS_TO_DEADLINE(20), NULL)
+                   .type == GRPC_QUEUE_TIMEOUT);
   }
 }
 
diff --git a/test/core/bad_client/tests/server_registered_method.c b/test/core/bad_client/tests/server_registered_method.c
index dc6ecc5..c35457c 100644
--- a/test/core/bad_client/tests/server_registered_method.c
+++ b/test/core/bad_client/tests/server_registered_method.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,8 +35,8 @@
 
 #include <string.h>
 
+#include "src/core/lib/surface/server.h"
 #include "test/core/end2end/cq_verifier.h"
-#include "src/core/surface/server.h"
 
 #define PFX_STR                                               \
   "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n"                          \
diff --git a/test/core/bad_client/tests/simple_request.c b/test/core/bad_client/tests/simple_request.c
index c04319e..6cb44ee 100644
--- a/test/core/bad_client/tests/simple_request.c
+++ b/test/core/bad_client/tests/simple_request.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,8 +35,8 @@
 
 #include <string.h>
 
+#include "src/core/lib/surface/server.h"
 #include "test/core/end2end/cq_verifier.h"
-#include "src/core/surface/server.h"
 
 #define PFX_STR                                                            \
   "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n"                                       \
@@ -108,9 +108,9 @@
 static void failure_verifier(grpc_server *server, grpc_completion_queue *cq,
                              void *registered_method) {
   while (grpc_server_has_open_connections(server)) {
-    GPR_ASSERT(grpc_completion_queue_next(cq,
-                                          GRPC_TIMEOUT_MILLIS_TO_DEADLINE(20),
-                                          NULL).type == GRPC_QUEUE_TIMEOUT);
+    GPR_ASSERT(grpc_completion_queue_next(
+                   cq, GRPC_TIMEOUT_MILLIS_TO_DEADLINE(20), NULL)
+                   .type == GRPC_QUEUE_TIMEOUT);
   }
 }
 
diff --git a/test/core/bad_client/tests/unknown_frame.c b/test/core/bad_client/tests/unknown_frame.c
index 2ef340e..44d1e35 100644
--- a/test/core/bad_client/tests/unknown_frame.c
+++ b/test/core/bad_client/tests/unknown_frame.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,8 +31,8 @@
  *
  */
 
+#include "src/core/lib/surface/server.h"
 #include "test/core/bad_client/bad_client.h"
-#include "src/core/surface/server.h"
 
 #define PFX_STR                      \
   "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n" \
@@ -41,9 +41,9 @@
 static void verifier(grpc_server *server, grpc_completion_queue *cq,
                      void *registered_method) {
   while (grpc_server_has_open_connections(server)) {
-    GPR_ASSERT(grpc_completion_queue_next(cq,
-                                          GRPC_TIMEOUT_MILLIS_TO_DEADLINE(20),
-                                          NULL).type == GRPC_QUEUE_TIMEOUT);
+    GPR_ASSERT(grpc_completion_queue_next(
+                   cq, GRPC_TIMEOUT_MILLIS_TO_DEADLINE(20), NULL)
+                   .type == GRPC_QUEUE_TIMEOUT);
   }
 }
 
diff --git a/test/core/bad_client/tests/window_overflow.c b/test/core/bad_client/tests/window_overflow.c
index 646d5c5..b6d0101 100644
--- a/test/core/bad_client/tests/window_overflow.c
+++ b/test/core/bad_client/tests/window_overflow.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -37,7 +37,7 @@
 
 #include <grpc/support/alloc.h>
 
-#include "src/core/surface/server.h"
+#include "src/core/lib/surface/server.h"
 
 #define PFX_STR                                                            \
   "PRI * HTTP/2.0\r\n\r\nSM\r\n\r\n"                                       \
@@ -60,9 +60,9 @@
 static void verifier(grpc_server *server, grpc_completion_queue *cq,
                      void *registered_method) {
   while (grpc_server_has_open_connections(server)) {
-    GPR_ASSERT(grpc_completion_queue_next(cq,
-                                          GRPC_TIMEOUT_MILLIS_TO_DEADLINE(20),
-                                          NULL).type == GRPC_QUEUE_TIMEOUT);
+    GPR_ASSERT(grpc_completion_queue_next(
+                   cq, GRPC_TIMEOUT_MILLIS_TO_DEADLINE(20), NULL)
+                   .type == GRPC_QUEUE_TIMEOUT);
   }
 }
 
@@ -90,8 +90,15 @@
 
   addbuf(PFX_STR, sizeof(PFX_STR) - 1);
   for (i = 0; i < NUM_FRAMES; i++) {
-    uint8_t hdr[9] = {(uint8_t)(FRAME_SIZE >> 16), (uint8_t)(FRAME_SIZE >> 8),
-                      (uint8_t)FRAME_SIZE, 0, 0, 0, 0, 0, 1};
+    uint8_t hdr[9] = {(uint8_t)(FRAME_SIZE >> 16),
+                      (uint8_t)(FRAME_SIZE >> 8),
+                      (uint8_t)FRAME_SIZE,
+                      0,
+                      0,
+                      0,
+                      0,
+                      0,
+                      1};
     addbuf(hdr, sizeof(hdr));
     for (j = 0; j < MESSAGES_PER_FRAME; j++) {
       uint8_t message[5] = {0, 0, 0, 0, 0};
diff --git a/test/core/bad_ssl/bad_ssl_test.c b/test/core/bad_ssl/bad_ssl_test.c
index a78a079..013b8ea 100644
--- a/test/core/bad_ssl/bad_ssl_test.c
+++ b/test/core/bad_ssl/bad_ssl_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,8 +31,8 @@
  *
  */
 
-#include <string.h>
 #include <stdio.h>
+#include <string.h>
 
 #include <grpc/grpc.h>
 #include <grpc/grpc_security.h>
@@ -41,9 +41,10 @@
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 #include <grpc/support/subprocess.h>
-#include "src/core/support/string.h"
-#include "test/core/util/port.h"
+#include "src/core/lib/support/env.h"
+#include "src/core/lib/support/string.h"
 #include "test/core/end2end/cq_verifier.h"
+#include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
 
 static void *tag(intptr_t t) { return (void *)t; }
@@ -144,6 +145,9 @@
   } else {
     strcpy(root, ".");
   }
+  if (argc == 2) {
+    gpr_setenv("GRPC_DEFAULT_SSL_ROOTS_FILE_PATH", argv[1]);
+  }
   /* figure out our test name */
   tmp = lunder - 1;
   while (*tmp != '_') tmp--;
diff --git a/test/core/bad_ssl/servers/alpn.c b/test/core/bad_ssl/servers/alpn.c
index c8cc83b..98dcd1c 100644
--- a/test/core/bad_ssl/servers/alpn.c
+++ b/test/core/bad_ssl/servers/alpn.c
@@ -38,7 +38,7 @@
 #include <grpc/support/log.h>
 #include <grpc/support/useful.h>
 
-#include "src/core/transport/chttp2/alpn.h"
+#include "src/core/lib/transport/chttp2/alpn.h"
 #include "test/core/bad_ssl/server_common.h"
 #include "test/core/end2end/data/ssl_test_data.h"
 
diff --git a/test/core/bad_ssl/servers/cert.c b/test/core/bad_ssl/servers/cert.c
index 4edef50..7307682 100644
--- a/test/core/bad_ssl/servers/cert.c
+++ b/test/core/bad_ssl/servers/cert.c
@@ -38,7 +38,7 @@
 #include <grpc/support/log.h>
 #include <grpc/support/useful.h>
 
-#include "src/core/support/load_file.h"
+#include "src/core/lib/support/load_file.h"
 
 #include "test/core/bad_ssl/server_common.h"
 #include "test/core/end2end/data/ssl_test_data.h"
@@ -56,9 +56,11 @@
 
   grpc_init();
 
-  cert_slice = gpr_load_file("src/core/tsi/test_creds/badserver.pem", 1, &ok);
+  cert_slice =
+      gpr_load_file("src/core/lib/tsi/test_creds/badserver.pem", 1, &ok);
   GPR_ASSERT(ok);
-  key_slice = gpr_load_file("src/core/tsi/test_creds/badserver.key", 1, &ok);
+  key_slice =
+      gpr_load_file("src/core/lib/tsi/test_creds/badserver.key", 1, &ok);
   GPR_ASSERT(ok);
   pem_key_cert_pair.private_key = (const char *)GPR_SLICE_START_PTR(key_slice);
   pem_key_cert_pair.cert_chain = (const char *)GPR_SLICE_START_PTR(cert_slice);
diff --git a/test/core/census/mlog_test.c b/test/core/census/mlog_test.c
index 000ac73..a1fadc2 100644
--- a/test/core/census/mlog_test.c
+++ b/test/core/census/mlog_test.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/census/mlog.h"
+#include "src/core/lib/census/mlog.h"
 #include <grpc/support/cpu.h>
 #include <grpc/support/log.h>
 #include <grpc/support/port_platform.h>
diff --git a/test/core/channel/channel_args_test.c b/test/core/channel/channel_args_test.c
index 0b74dee..352dfa0 100644
--- a/test/core/channel/channel_args_test.c
+++ b/test/core/channel/channel_args_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -36,7 +36,7 @@
 #include <grpc/support/log.h>
 #include <grpc/support/useful.h>
 
-#include "src/core/channel/channel_args.h"
+#include "src/core/lib/channel/channel_args.h"
 
 #include "test/core/util/test_config.h"
 
diff --git a/test/core/channel/channel_stack_test.c b/test/core/channel/channel_stack_test.c
index e19e9a5..49e9c7e 100644
--- a/test/core/channel/channel_stack_test.c
+++ b/test/core/channel/channel_stack_test.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/channel/channel_stack.h"
+#include "src/core/lib/channel/channel_stack.h"
 
 #include <string.h>
 
@@ -92,10 +92,17 @@
 }
 
 static void test_create_channel_stack(void) {
-  const grpc_channel_filter filter = {
-      call_func, channel_func, sizeof(int), call_init_func,
-      grpc_call_stack_ignore_set_pollset, call_destroy_func, sizeof(int),
-      channel_init_func, channel_destroy_func, get_peer, "some_test_filter"};
+  const grpc_channel_filter filter = {call_func,
+                                      channel_func,
+                                      sizeof(int),
+                                      call_init_func,
+                                      grpc_call_stack_ignore_set_pollset,
+                                      call_destroy_func,
+                                      sizeof(int),
+                                      channel_init_func,
+                                      channel_destroy_func,
+                                      get_peer,
+                                      "some_test_filter"};
   const grpc_channel_filter *filters = &filter;
   grpc_channel_stack *channel_stack;
   grpc_call_stack *call_stack;
diff --git a/test/core/client_config/lb_policies_test.c b/test/core/client_config/lb_policies_test.c
index 1ea0c42..bae3e7d 100644
--- a/test/core/client_config/lb_policies_test.c
+++ b/test/core/client_config/lb_policies_test.c
@@ -41,13 +41,13 @@
 #include <grpc/support/string_util.h>
 #include <grpc/support/time.h>
 
-#include "src/core/channel/channel_stack.h"
-#include "src/core/channel/client_channel.h"
-#include "src/core/client_config/lb_policies/round_robin.h"
-#include "src/core/client_config/lb_policy_registry.h"
-#include "src/core/support/string.h"
-#include "src/core/surface/channel.h"
-#include "src/core/surface/server.h"
+#include "src/core/lib/channel/channel_stack.h"
+#include "src/core/lib/channel/client_channel.h"
+#include "src/core/lib/client_config/lb_policies/round_robin.h"
+#include "src/core/lib/client_config/lb_policy_registry.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/surface/channel.h"
+#include "src/core/lib/surface/server.h"
 #include "test/core/end2end/cq_verifier.h"
 #include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
@@ -139,8 +139,9 @@
   gpr_log(GPR_INFO, "KILLING SERVER %d", i);
   GPR_ASSERT(f->servers[i] != NULL);
   grpc_server_shutdown_and_notify(f->servers[i], f->cq, tag(10000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(10000), n_millis_time(5000),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(
+      grpc_completion_queue_pluck(f->cq, tag(10000), n_millis_time(5000), NULL)
+          .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->servers[i]);
   f->servers[i] = NULL;
 }
@@ -206,8 +207,8 @@
     if (f->servers[i] == NULL) continue;
     grpc_server_shutdown_and_notify(f->servers[i], f->cq, tag(10000));
     GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(10000),
-                                           n_millis_time(5000),
-                                           NULL).type == GRPC_OP_COMPLETE);
+                                           n_millis_time(5000), NULL)
+                   .type == GRPC_OP_COMPLETE);
     grpc_server_destroy(f->servers[i]);
   }
   grpc_completion_queue_shutdown(f->cq);
@@ -304,9 +305,10 @@
                grpc_call_start_batch(c, ops, (size_t)(op - ops), tag(1), NULL));
 
     s_idx = -1;
-    while ((ev = grpc_completion_queue_next(
-                f->cq, GRPC_TIMEOUT_MILLIS_TO_DEADLINE(10 * RETRY_TIMEOUT),
-                NULL)).type != GRPC_QUEUE_TIMEOUT) {
+    while (
+        (ev = grpc_completion_queue_next(
+             f->cq, GRPC_TIMEOUT_MILLIS_TO_DEADLINE(10 * RETRY_TIMEOUT), NULL))
+            .type != GRPC_QUEUE_TIMEOUT) {
       GPR_ASSERT(ev.type == GRPC_OP_COMPLETE);
       read_tag = ((int)(intptr_t)ev.tag);
       gpr_log(GPR_DEBUG, "EVENT: success:%d, type:%d, tag:%d iter:%d",
@@ -378,9 +380,10 @@
       }
     }
 
-    GPR_ASSERT(grpc_completion_queue_next(
-                   f->cq, GRPC_TIMEOUT_MILLIS_TO_DEADLINE(2 * RETRY_TIMEOUT),
-                   NULL).type == GRPC_QUEUE_TIMEOUT);
+    GPR_ASSERT(
+        grpc_completion_queue_next(
+            f->cq, GRPC_TIMEOUT_MILLIS_TO_DEADLINE(2 * RETRY_TIMEOUT), NULL)
+            .type == GRPC_QUEUE_TIMEOUT);
 
     grpc_metadata_array_destroy(&rdata->initial_metadata_recv);
     grpc_metadata_array_destroy(&rdata->trailing_metadata_recv);
diff --git a/test/core/client_config/resolvers/dns_resolver_connectivity_test.c b/test/core/client_config/resolvers/dns_resolver_connectivity_test.c
index 75d1eb6..dc6a614 100644
--- a/test/core/client_config/resolvers/dns_resolver_connectivity_test.c
+++ b/test/core/client_config/resolvers/dns_resolver_connectivity_test.c
@@ -31,15 +31,15 @@
  *
  */
 
-#include "src/core/client_config/resolvers/dns_resolver.h"
+#include "src/core/lib/client_config/resolvers/dns_resolver.h"
 
 #include <string.h>
 
 #include <grpc/grpc.h>
 #include <grpc/support/alloc.h>
 
-#include "src/core/iomgr/resolve_address.h"
-#include "src/core/iomgr/timer.h"
+#include "src/core/lib/iomgr/resolve_address.h"
+#include "src/core/lib/iomgr/timer.h"
 #include "test/core/util/test_config.h"
 
 static void subchannel_factory_ref(grpc_subchannel_factory *scv) {}
diff --git a/test/core/client_config/resolvers/dns_resolver_test.c b/test/core/client_config/resolvers/dns_resolver_test.c
index 38e76d5..6c7a6b2 100644
--- a/test/core/client_config/resolvers/dns_resolver_test.c
+++ b/test/core/client_config/resolvers/dns_resolver_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,13 +31,13 @@
  *
  */
 
-#include "src/core/client_config/resolvers/dns_resolver.h"
+#include "src/core/lib/client_config/resolvers/dns_resolver.h"
 
 #include <string.h>
 
 #include <grpc/support/log.h>
 
-#include "src/core/client_config/resolver.h"
+#include "src/core/lib/client_config/resolver.h"
 #include "test/core/util/test_config.h"
 
 static void subchannel_factory_ref(grpc_subchannel_factory *scv) {}
diff --git a/test/core/client_config/resolvers/sockaddr_resolver_test.c b/test/core/client_config/resolvers/sockaddr_resolver_test.c
index 8856c85..fafddfd 100644
--- a/test/core/client_config/resolvers/sockaddr_resolver_test.c
+++ b/test/core/client_config/resolvers/sockaddr_resolver_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,13 +31,13 @@
  *
  */
 
-#include "src/core/client_config/resolvers/sockaddr_resolver.h"
+#include "src/core/lib/client_config/resolvers/sockaddr_resolver.h"
 
 #include <string.h>
 
 #include <grpc/support/log.h>
 
-#include "src/core/client_config/resolver.h"
+#include "src/core/lib/client_config/resolver.h"
 #include "test/core/util/test_config.h"
 
 static void subchannel_factory_ref(grpc_subchannel_factory *scv) {}
diff --git a/test/core/client_config/set_initial_connect_string_test.c b/test/core/client_config/set_initial_connect_string_test.c
index 3cf267f..7fd92a0 100644
--- a/test/core/client_config/set_initial_connect_string_test.c
+++ b/test/core/client_config/set_initial_connect_string_test.c
@@ -38,10 +38,10 @@
 #include <grpc/support/log.h>
 #include <grpc/support/slice.h>
 
-#include "src/core/client_config/initial_connect_string.h"
-#include "src/core/iomgr/sockaddr.h"
-#include "src/core/security/credentials.h"
-#include "src/core/support/string.h"
+#include "src/core/lib/client_config/initial_connect_string.h"
+#include "src/core/lib/iomgr/sockaddr.h"
+#include "src/core/lib/security/credentials.h"
+#include "src/core/lib/support/string.h"
 #include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
 #include "test/core/util/test_tcp_server.h"
diff --git a/test/core/client_config/uri_parser_test.c b/test/core/client_config/uri_parser_test.c
index df12d6b..c7f7726 100644
--- a/test/core/client_config/uri_parser_test.c
+++ b/test/core/client_config/uri_parser_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/client_config/uri_parser.h"
+#include "src/core/lib/client_config/uri_parser.h"
 
 #include <string.h>
 
diff --git a/test/core/compression/algorithm_test.c b/test/core/compression/algorithm_test.c
index 7de7e11..937eb66 100644
--- a/test/core/compression/algorithm_test.c
+++ b/test/core/compression/algorithm_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/compression/algorithm_metadata.h"
+#include "src/core/lib/compression/algorithm_metadata.h"
 
 #include <stdlib.h>
 #include <string.h>
@@ -40,7 +40,7 @@
 #include <grpc/support/log.h>
 #include <grpc/support/useful.h>
 
-#include "src/core/transport/static_metadata.h"
+#include "src/core/lib/transport/static_metadata.h"
 #include "test/core/util/test_config.h"
 
 static void test_algorithm_mesh(void) {
diff --git a/test/core/compression/message_compress_test.c b/test/core/compression/message_compress_test.c
index 6d3d161..378badc 100644
--- a/test/core/compression/message_compress_test.c
+++ b/test/core/compression/message_compress_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/compression/message_compress.h"
+#include "src/core/lib/compression/message_compress.h"
 
 #include <stdlib.h>
 #include <string.h>
@@ -40,7 +40,7 @@
 #include <grpc/support/log.h>
 #include <grpc/support/useful.h>
 
-#include "src/core/support/murmur_hash.h"
+#include "src/core/lib/support/murmur_hash.h"
 #include "test/core/util/slice_splitter.h"
 #include "test/core/util/test_config.h"
 
diff --git a/test/core/end2end/cq_verifier.c b/test/core/end2end/cq_verifier.c
index 724d419..baf8e8e 100644
--- a/test/core/end2end/cq_verifier.c
+++ b/test/core/end2end/cq_verifier.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -37,8 +37,6 @@
 #include <stdio.h>
 #include <string.h>
 
-#include "src/core/surface/event_string.h"
-#include "src/core/support/string.h"
 #include <grpc/byte_buffer.h>
 #include <grpc/byte_buffer_reader.h>
 #include <grpc/support/alloc.h>
@@ -46,6 +44,8 @@
 #include <grpc/support/string_util.h>
 #include <grpc/support/time.h>
 #include <grpc/support/useful.h>
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/surface/event_string.h"
 
 #define ROOT_EXPECTATION 1000
 
diff --git a/test/core/end2end/dualstack_socket_test.c b/test/core/end2end/dualstack_socket_test.c
index 58e13a4..7501df9 100644
--- a/test/core/end2end/dualstack_socket_test.c
+++ b/test/core/end2end/dualstack_socket_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -39,9 +39,9 @@
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/support/string.h"
-#include "src/core/iomgr/resolve_address.h"
-#include "src/core/iomgr/socket_utils_posix.h"
+#include "src/core/lib/iomgr/resolve_address.h"
+#include "src/core/lib/iomgr/socket_utils_posix.h"
+#include "src/core/lib/support/string.h"
 
 #include "test/core/end2end/cq_verifier.h"
 #include "test/core/util/port.h"
@@ -249,9 +249,9 @@
 
   /* Destroy server. */
   grpc_server_shutdown_and_notify(server, cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(server);
   grpc_completion_queue_shutdown(cq);
   drain_cq(cq);
diff --git a/test/core/end2end/end2end_nosec_tests.c b/test/core/end2end/end2end_nosec_tests.c
index 17dc190..b893451 100644
--- a/test/core/end2end/end2end_nosec_tests.c
+++ b/test/core/end2end/end2end_nosec_tests.c
@@ -35,7 +35,9 @@
 /* This file is auto-generated */
 
 #include "test/core/end2end/end2end_tests.h"
+
 #include <string.h>
+
 #include <grpc/support/log.h>
 
 extern void bad_hostname(grpc_end2end_test_config config);
diff --git a/test/core/end2end/end2end_tests.c b/test/core/end2end/end2end_tests.c
index 6f2f5af..f096979 100644
--- a/test/core/end2end/end2end_tests.c
+++ b/test/core/end2end/end2end_tests.c
@@ -35,7 +35,9 @@
 /* This file is auto-generated */
 
 #include "test/core/end2end/end2end_tests.h"
+
 #include <string.h>
+
 #include <grpc/support/log.h>
 
 extern void bad_hostname(grpc_end2end_test_config config);
diff --git a/test/core/end2end/fixtures/h2_census.c b/test/core/end2end/fixtures/h2_census.c
index e74c9ae..8d504e4 100644
--- a/test/core/end2end/fixtures/h2_census.c
+++ b/test/core/end2end/fixtures/h2_census.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,19 +35,19 @@
 
 #include <string.h>
 
-#include "src/core/channel/channel_args.h"
-#include "src/core/channel/client_channel.h"
-#include "src/core/channel/connected_channel.h"
-#include "src/core/channel/http_server_filter.h"
-#include "src/core/surface/channel.h"
-#include "src/core/surface/server.h"
-#include "src/core/transport/chttp2_transport.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/host_port.h>
 #include <grpc/support/log.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
+#include "src/core/lib/channel/channel_args.h"
+#include "src/core/lib/channel/client_channel.h"
+#include "src/core/lib/channel/connected_channel.h"
+#include "src/core/lib/channel/http_server_filter.h"
+#include "src/core/lib/surface/channel.h"
+#include "src/core/lib/surface/server.h"
+#include "src/core/lib/transport/chttp2_transport.h"
 #include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
 
diff --git a/test/core/end2end/fixtures/h2_compress.c b/test/core/end2end/fixtures/h2_compress.c
index fea8a4f..a45c27a 100644
--- a/test/core/end2end/fixtures/h2_compress.c
+++ b/test/core/end2end/fixtures/h2_compress.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,19 +35,19 @@
 
 #include <string.h>
 
-#include "src/core/channel/channel_args.h"
-#include "src/core/channel/client_channel.h"
-#include "src/core/channel/connected_channel.h"
-#include "src/core/channel/http_server_filter.h"
-#include "src/core/surface/channel.h"
-#include "src/core/surface/server.h"
-#include "src/core/transport/chttp2_transport.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/host_port.h>
 #include <grpc/support/log.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
+#include "src/core/lib/channel/channel_args.h"
+#include "src/core/lib/channel/client_channel.h"
+#include "src/core/lib/channel/connected_channel.h"
+#include "src/core/lib/channel/http_server_filter.h"
+#include "src/core/lib/surface/channel.h"
+#include "src/core/lib/surface/server.h"
+#include "src/core/lib/transport/chttp2_transport.h"
 #include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
 
diff --git a/test/core/end2end/fixtures/h2_fakesec.c b/test/core/end2end/fixtures/h2_fakesec.c
index 2767f1d..7386691 100644
--- a/test/core/end2end/fixtures/h2_fakesec.c
+++ b/test/core/end2end/fixtures/h2_fakesec.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -36,14 +36,14 @@
 #include <stdio.h>
 #include <string.h>
 
-#include "src/core/channel/channel_args.h"
-#include "src/core/security/credentials.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/host_port.h>
 #include <grpc/support/log.h>
-#include "test/core/util/test_config.h"
-#include "test/core/util/port.h"
+#include "src/core/lib/channel/channel_args.h"
+#include "src/core/lib/security/credentials.h"
 #include "test/core/end2end/data/ssl_test_data.h"
+#include "test/core/util/port.h"
+#include "test/core/util/test_config.h"
 
 typedef struct fullstack_secure_fixture_data {
   char *localaddr;
diff --git a/test/core/end2end/fixtures/h2_full+pipe.c b/test/core/end2end/fixtures/h2_full+pipe.c
index 4b93581..def5efa 100644
--- a/test/core/end2end/fixtures/h2_full+pipe.c
+++ b/test/core/end2end/fixtures/h2_full+pipe.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,21 +35,21 @@
 
 #include <string.h>
 
-#include "src/core/channel/client_channel.h"
-#include "src/core/channel/connected_channel.h"
-#include "src/core/channel/http_server_filter.h"
-#include "src/core/surface/channel.h"
-#include "src/core/surface/server.h"
-#include "src/core/transport/chttp2_transport.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/host_port.h>
 #include <grpc/support/log.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
+#include "src/core/lib/channel/client_channel.h"
+#include "src/core/lib/channel/connected_channel.h"
+#include "src/core/lib/channel/http_server_filter.h"
+#include "src/core/lib/iomgr/wakeup_fd_posix.h"
+#include "src/core/lib/surface/channel.h"
+#include "src/core/lib/surface/server.h"
+#include "src/core/lib/transport/chttp2_transport.h"
 #include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
-#include "src/core/iomgr/wakeup_fd_posix.h"
 
 typedef struct fullstack_fixture_data {
   char *localaddr;
diff --git a/test/core/end2end/fixtures/h2_full+trace.c b/test/core/end2end/fixtures/h2_full+trace.c
index 90b0063..0d53156 100644
--- a/test/core/end2end/fixtures/h2_full+trace.c
+++ b/test/core/end2end/fixtures/h2_full+trace.c
@@ -35,21 +35,21 @@
 
 #include <string.h>
 
-#include "src/core/channel/client_channel.h"
-#include "src/core/channel/connected_channel.h"
-#include "src/core/channel/http_server_filter.h"
-#include "src/core/surface/channel.h"
-#include "src/core/surface/server.h"
-#include "src/core/transport/chttp2_transport.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/host_port.h>
 #include <grpc/support/log.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
+#include "src/core/lib/channel/client_channel.h"
+#include "src/core/lib/channel/connected_channel.h"
+#include "src/core/lib/channel/http_server_filter.h"
+#include "src/core/lib/support/env.h"
+#include "src/core/lib/surface/channel.h"
+#include "src/core/lib/surface/server.h"
+#include "src/core/lib/transport/chttp2_transport.h"
 #include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
-#include "src/core/support/env.h"
 
 typedef struct fullstack_fixture_data {
   char *localaddr;
@@ -118,14 +118,14 @@
   grpc_test_init(argc, argv);
   grpc_init();
 
-  for (i = 0; i < sizeof(configs) / sizeof(*configs); i++) {
-    grpc_end2end_tests(argc, argv, configs[i]);
-  }
-
   GPR_ASSERT(0 == grpc_tracer_set_enabled("also-doesnt-exist", 0));
   GPR_ASSERT(1 == grpc_tracer_set_enabled("http", 1));
   GPR_ASSERT(1 == grpc_tracer_set_enabled("all", 1));
 
+  for (i = 0; i < sizeof(configs) / sizeof(*configs); i++) {
+    grpc_end2end_tests(argc, argv, configs[i]);
+  }
+
   grpc_shutdown();
 
   return 0;
diff --git a/test/core/end2end/fixtures/h2_full.c b/test/core/end2end/fixtures/h2_full.c
index ebaa1c6..4eae620 100644
--- a/test/core/end2end/fixtures/h2_full.c
+++ b/test/core/end2end/fixtures/h2_full.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,18 +35,18 @@
 
 #include <string.h>
 
-#include "src/core/channel/client_channel.h"
-#include "src/core/channel/connected_channel.h"
-#include "src/core/channel/http_server_filter.h"
-#include "src/core/surface/channel.h"
-#include "src/core/surface/server.h"
-#include "src/core/transport/chttp2_transport.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/host_port.h>
 #include <grpc/support/log.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
+#include "src/core/lib/channel/client_channel.h"
+#include "src/core/lib/channel/connected_channel.h"
+#include "src/core/lib/channel/http_server_filter.h"
+#include "src/core/lib/surface/channel.h"
+#include "src/core/lib/surface/server.h"
+#include "src/core/lib/transport/chttp2_transport.h"
 #include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
 
diff --git a/test/core/end2end/fixtures/h2_oauth2.c b/test/core/end2end/fixtures/h2_oauth2.c
index e2c8291..ee188cc 100644
--- a/test/core/end2end/fixtures/h2_oauth2.c
+++ b/test/core/end2end/fixtures/h2_oauth2.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -36,15 +36,15 @@
 #include <stdio.h>
 #include <string.h>
 
-#include "src/core/channel/channel_args.h"
-#include "src/core/iomgr/iomgr.h"
-#include "src/core/security/credentials.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/host_port.h>
 #include <grpc/support/log.h>
-#include "test/core/util/test_config.h"
-#include "test/core/util/port.h"
+#include "src/core/lib/channel/channel_args.h"
+#include "src/core/lib/iomgr/iomgr.h"
+#include "src/core/lib/security/credentials.h"
 #include "test/core/end2end/data/ssl_test_data.h"
+#include "test/core/util/port.h"
+#include "test/core/util/test_config.h"
 
 static const char oauth2_md[] = "Bearer aaslkfjs424535asdf";
 static const char *client_identity_property_name = "smurf_name";
diff --git a/test/core/end2end/fixtures/h2_proxy.c b/test/core/end2end/fixtures/h2_proxy.c
index 8bcc1b6..39ecd89 100644
--- a/test/core/end2end/fixtures/h2_proxy.c
+++ b/test/core/end2end/fixtures/h2_proxy.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,18 +35,18 @@
 
 #include <string.h>
 
-#include "src/core/channel/client_channel.h"
-#include "src/core/channel/connected_channel.h"
-#include "src/core/channel/http_server_filter.h"
-#include "src/core/surface/channel.h"
-#include "src/core/surface/server.h"
-#include "src/core/transport/chttp2_transport.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/host_port.h>
 #include <grpc/support/log.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
+#include "src/core/lib/channel/client_channel.h"
+#include "src/core/lib/channel/connected_channel.h"
+#include "src/core/lib/channel/http_server_filter.h"
+#include "src/core/lib/surface/channel.h"
+#include "src/core/lib/surface/server.h"
+#include "src/core/lib/transport/chttp2_transport.h"
 #include "test/core/end2end/fixtures/proxy.h"
 #include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
diff --git a/test/core/end2end/fixtures/h2_sockpair+trace.c b/test/core/end2end/fixtures/h2_sockpair+trace.c
index 482aa8d..374390f 100644
--- a/test/core/end2end/fixtures/h2_sockpair+trace.c
+++ b/test/core/end2end/fixtures/h2_sockpair+trace.c
@@ -35,22 +35,22 @@
 
 #include <string.h>
 
-#include "src/core/channel/client_channel.h"
-#include "src/core/channel/connected_channel.h"
-#include "src/core/channel/http_client_filter.h"
-#include "src/core/channel/http_server_filter.h"
-#include "src/core/channel/compress_filter.h"
-#include "src/core/iomgr/endpoint_pair.h"
-#include "src/core/iomgr/iomgr.h"
-#include "src/core/support/env.h"
-#include "src/core/surface/channel.h"
-#include "src/core/surface/server.h"
-#include "src/core/transport/chttp2_transport.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
+#include "src/core/lib/channel/client_channel.h"
+#include "src/core/lib/channel/compress_filter.h"
+#include "src/core/lib/channel/connected_channel.h"
+#include "src/core/lib/channel/http_client_filter.h"
+#include "src/core/lib/channel/http_server_filter.h"
+#include "src/core/lib/iomgr/endpoint_pair.h"
+#include "src/core/lib/iomgr/iomgr.h"
+#include "src/core/lib/support/env.h"
+#include "src/core/lib/surface/channel.h"
+#include "src/core/lib/surface/server.h"
+#include "src/core/lib/transport/chttp2_transport.h"
 #include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
 
diff --git a/test/core/end2end/fixtures/h2_sockpair.c b/test/core/end2end/fixtures/h2_sockpair.c
index cf1c4ac..c11a528 100644
--- a/test/core/end2end/fixtures/h2_sockpair.c
+++ b/test/core/end2end/fixtures/h2_sockpair.c
@@ -35,21 +35,21 @@
 
 #include <string.h>
 
-#include "src/core/channel/client_channel.h"
-#include "src/core/channel/compress_filter.h"
-#include "src/core/channel/connected_channel.h"
-#include "src/core/channel/http_client_filter.h"
-#include "src/core/channel/http_server_filter.h"
-#include "src/core/iomgr/endpoint_pair.h"
-#include "src/core/iomgr/iomgr.h"
-#include "src/core/surface/channel.h"
-#include "src/core/surface/server.h"
-#include "src/core/transport/chttp2_transport.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
+#include "src/core/lib/channel/client_channel.h"
+#include "src/core/lib/channel/compress_filter.h"
+#include "src/core/lib/channel/connected_channel.h"
+#include "src/core/lib/channel/http_client_filter.h"
+#include "src/core/lib/channel/http_server_filter.h"
+#include "src/core/lib/iomgr/endpoint_pair.h"
+#include "src/core/lib/iomgr/iomgr.h"
+#include "src/core/lib/surface/channel.h"
+#include "src/core/lib/surface/server.h"
+#include "src/core/lib/transport/chttp2_transport.h"
 #include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
 
diff --git a/test/core/end2end/fixtures/h2_sockpair_1byte.c b/test/core/end2end/fixtures/h2_sockpair_1byte.c
index f49938c..6a504c6 100644
--- a/test/core/end2end/fixtures/h2_sockpair_1byte.c
+++ b/test/core/end2end/fixtures/h2_sockpair_1byte.c
@@ -35,21 +35,21 @@
 
 #include <string.h>
 
-#include "src/core/channel/client_channel.h"
-#include "src/core/channel/connected_channel.h"
-#include "src/core/channel/http_client_filter.h"
-#include "src/core/channel/http_server_filter.h"
-#include "src/core/channel/compress_filter.h"
-#include "src/core/iomgr/endpoint_pair.h"
-#include "src/core/iomgr/iomgr.h"
-#include "src/core/surface/channel.h"
-#include "src/core/surface/server.h"
-#include "src/core/transport/chttp2_transport.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
+#include "src/core/lib/channel/client_channel.h"
+#include "src/core/lib/channel/compress_filter.h"
+#include "src/core/lib/channel/connected_channel.h"
+#include "src/core/lib/channel/http_client_filter.h"
+#include "src/core/lib/channel/http_server_filter.h"
+#include "src/core/lib/iomgr/endpoint_pair.h"
+#include "src/core/lib/iomgr/iomgr.h"
+#include "src/core/lib/surface/channel.h"
+#include "src/core/lib/surface/server.h"
+#include "src/core/lib/transport/chttp2_transport.h"
 #include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
 
diff --git a/test/core/end2end/fixtures/h2_ssl.c b/test/core/end2end/fixtures/h2_ssl.c
index e21a347..fecd03f 100644
--- a/test/core/end2end/fixtures/h2_ssl.c
+++ b/test/core/end2end/fixtures/h2_ssl.c
@@ -40,11 +40,11 @@
 #include <grpc/support/host_port.h>
 #include <grpc/support/log.h>
 
-#include "src/core/channel/channel_args.h"
-#include "src/core/security/credentials.h"
-#include "src/core/support/env.h"
-#include "src/core/support/tmpfile.h"
-#include "src/core/support/string.h"
+#include "src/core/lib/channel/channel_args.h"
+#include "src/core/lib/security/credentials.h"
+#include "src/core/lib/support/env.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/support/tmpfile.h"
 #include "test/core/end2end/data/ssl_test_data.h"
 #include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
diff --git a/test/core/end2end/fixtures/h2_ssl_proxy.c b/test/core/end2end/fixtures/h2_ssl_proxy.c
index 6340d3f..bfbc735 100644
--- a/test/core/end2end/fixtures/h2_ssl_proxy.c
+++ b/test/core/end2end/fixtures/h2_ssl_proxy.c
@@ -40,11 +40,11 @@
 #include <grpc/support/host_port.h>
 #include <grpc/support/log.h>
 
-#include "src/core/channel/channel_args.h"
-#include "src/core/security/credentials.h"
-#include "src/core/support/env.h"
-#include "src/core/support/tmpfile.h"
-#include "src/core/support/string.h"
+#include "src/core/lib/channel/channel_args.h"
+#include "src/core/lib/security/credentials.h"
+#include "src/core/lib/support/env.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/support/tmpfile.h"
 #include "test/core/end2end/data/ssl_test_data.h"
 #include "test/core/end2end/fixtures/proxy.h"
 #include "test/core/util/port.h"
diff --git a/test/core/end2end/fixtures/h2_uchannel.c b/test/core/end2end/fixtures/h2_uchannel.c
deleted file mode 100644
index 25a4804..0000000
--- a/test/core/end2end/fixtures/h2_uchannel.c
+++ /dev/null
@@ -1,350 +0,0 @@
-/*
- *
- * Copyright 2015-2016, Google Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#include "test/core/end2end/end2end_tests.h"
-
-#include <string.h>
-
-#include <grpc/support/alloc.h>
-#include <grpc/support/host_port.h>
-#include <grpc/support/log.h>
-#include <grpc/support/string_util.h>
-#include <grpc/support/sync.h>
-#include <grpc/support/thd.h>
-#include <grpc/support/useful.h>
-#include "src/core/channel/channel_args.h"
-#include "src/core/channel/client_channel.h"
-#include "src/core/channel/client_uchannel.h"
-#include "src/core/channel/connected_channel.h"
-#include "src/core/channel/http_client_filter.h"
-#include "src/core/channel/http_server_filter.h"
-#include "src/core/client_config/resolver_registry.h"
-#include "src/core/iomgr/tcp_client.h"
-#include "src/core/surface/channel.h"
-#include "src/core/surface/server.h"
-#include "src/core/transport/chttp2_transport.h"
-#include "test/core/util/port.h"
-#include "test/core/util/test_config.h"
-
-typedef struct {
-  grpc_connector base;
-  gpr_refcount refs;
-
-  grpc_closure *notify;
-  grpc_connect_in_args args;
-  grpc_connect_out_args *result;
-
-  grpc_endpoint *tcp;
-
-  grpc_closure connected;
-} connector;
-
-static void connector_ref(grpc_connector *con) {
-  connector *c = (connector *)con;
-  gpr_ref(&c->refs);
-}
-
-static void connector_unref(grpc_exec_ctx *exec_ctx, grpc_connector *con) {
-  connector *c = (connector *)con;
-  if (gpr_unref(&c->refs)) {
-    gpr_free(c);
-  }
-}
-
-static void connected(grpc_exec_ctx *exec_ctx, void *arg, bool success) {
-  connector *c = arg;
-  grpc_closure *notify;
-  grpc_endpoint *tcp = c->tcp;
-  if (tcp != NULL) {
-    c->result->transport =
-        grpc_create_chttp2_transport(exec_ctx, c->args.channel_args, tcp, 1);
-    grpc_chttp2_transport_start_reading(exec_ctx, c->result->transport, NULL,
-                                        0);
-    GPR_ASSERT(c->result->transport);
-  } else {
-    memset(c->result, 0, sizeof(*c->result));
-  }
-  notify = c->notify;
-  c->notify = NULL;
-  notify->cb(exec_ctx, notify->cb_arg, 1);
-}
-
-static void connector_shutdown(grpc_exec_ctx *exec_ctx, grpc_connector *con) {}
-
-static void connector_connect(grpc_exec_ctx *exec_ctx, grpc_connector *con,
-                              const grpc_connect_in_args *args,
-                              grpc_connect_out_args *result,
-                              grpc_closure *notify) {
-  connector *c = (connector *)con;
-  GPR_ASSERT(c->notify == NULL);
-  GPR_ASSERT(notify->cb);
-  c->notify = notify;
-  c->args = *args;
-  c->result = result;
-  c->tcp = NULL;
-  grpc_closure_init(&c->connected, connected, c);
-  grpc_tcp_client_connect(exec_ctx, &c->connected, &c->tcp,
-                          args->interested_parties, args->addr, args->addr_len,
-                          args->deadline);
-}
-
-static const grpc_connector_vtable connector_vtable = {
-    connector_ref, connector_unref, connector_shutdown, connector_connect};
-
-typedef struct {
-  grpc_subchannel_factory base;
-  gpr_refcount refs;
-  grpc_channel_args *merge_args;
-  grpc_channel *master;
-  grpc_subchannel **sniffed_subchannel;
-} subchannel_factory;
-
-static void subchannel_factory_ref(grpc_subchannel_factory *scf) {
-  subchannel_factory *f = (subchannel_factory *)scf;
-  gpr_ref(&f->refs);
-}
-
-static void subchannel_factory_unref(grpc_exec_ctx *exec_ctx,
-                                     grpc_subchannel_factory *scf) {
-  subchannel_factory *f = (subchannel_factory *)scf;
-  if (gpr_unref(&f->refs)) {
-    GRPC_CHANNEL_INTERNAL_UNREF(exec_ctx, f->master, "subchannel_factory");
-    grpc_channel_args_destroy(f->merge_args);
-    gpr_free(f);
-  }
-}
-
-static grpc_subchannel *subchannel_factory_create_subchannel(
-    grpc_exec_ctx *exec_ctx, grpc_subchannel_factory *scf,
-    grpc_subchannel_args *args) {
-  subchannel_factory *f = (subchannel_factory *)scf;
-  connector *c = gpr_malloc(sizeof(*c));
-  grpc_channel_args *final_args =
-      grpc_channel_args_merge(args->args, f->merge_args);
-  grpc_subchannel *s;
-  memset(c, 0, sizeof(*c));
-  c->base.vtable = &connector_vtable;
-  gpr_ref_init(&c->refs, 1);
-  args->args = final_args;
-  s = grpc_subchannel_create(exec_ctx, &c->base, args);
-  grpc_connector_unref(exec_ctx, &c->base);
-  grpc_channel_args_destroy(final_args);
-  if (*f->sniffed_subchannel) {
-    GRPC_SUBCHANNEL_UNREF(exec_ctx, *f->sniffed_subchannel, "sniffed");
-  }
-  *f->sniffed_subchannel = s;
-  GRPC_SUBCHANNEL_REF(s, "sniffed");
-  return s;
-}
-
-static const grpc_subchannel_factory_vtable test_subchannel_factory_vtable = {
-    subchannel_factory_ref, subchannel_factory_unref,
-    subchannel_factory_create_subchannel};
-
-/* The evil twin of grpc_insecure_channel_create. It allows the test to use the
- * custom-built sniffing subchannel_factory */
-grpc_channel *channel_create(const char *target, const grpc_channel_args *args,
-                             grpc_subchannel **sniffed_subchannel) {
-  grpc_channel *channel = NULL;
-  grpc_resolver *resolver;
-  subchannel_factory *f;
-  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
-
-  channel =
-      grpc_channel_create(&exec_ctx, target, args, GRPC_CLIENT_CHANNEL, NULL);
-
-  f = gpr_malloc(sizeof(*f));
-  f->sniffed_subchannel = sniffed_subchannel;
-  f->base.vtable = &test_subchannel_factory_vtable;
-  gpr_ref_init(&f->refs, 1);
-  f->merge_args = grpc_channel_args_copy(args);
-  f->master = channel;
-  GRPC_CHANNEL_INTERNAL_REF(f->master, "test_subchannel_factory");
-  resolver = grpc_resolver_create(target, &f->base);
-  if (!resolver) {
-    return NULL;
-  }
-
-  grpc_client_channel_set_resolver(
-      &exec_ctx, grpc_channel_get_channel_stack(channel), resolver);
-  GRPC_RESOLVER_UNREF(&exec_ctx, resolver, "test_create");
-  grpc_subchannel_factory_unref(&exec_ctx, &f->base);
-
-  grpc_exec_ctx_finish(&exec_ctx);
-
-  return channel;
-}
-
-typedef struct micro_fullstack_fixture_data {
-  char *localaddr;
-  grpc_channel *master_channel;
-  grpc_subchannel *sniffed_subchannel;
-} micro_fullstack_fixture_data;
-
-static grpc_end2end_test_fixture chttp2_create_fixture_micro_fullstack(
-    grpc_channel_args *client_args, grpc_channel_args *server_args) {
-  grpc_end2end_test_fixture f;
-  int port = grpc_pick_unused_port_or_die();
-  micro_fullstack_fixture_data *ffd =
-      gpr_malloc(sizeof(micro_fullstack_fixture_data));
-  memset(&f, 0, sizeof(f));
-  memset(ffd, 0, sizeof(*ffd));
-
-  gpr_join_host_port(&ffd->localaddr, "127.0.0.1", port);
-
-  f.fixture_data = ffd;
-  f.cq = grpc_completion_queue_create(NULL);
-
-  return f;
-}
-
-grpc_connectivity_state g_state = GRPC_CHANNEL_IDLE;
-grpc_pollset_set *g_interested_parties;
-
-static void state_changed(grpc_exec_ctx *exec_ctx, void *arg, bool success) {
-  if (g_state != GRPC_CHANNEL_READY) {
-    grpc_subchannel_notify_on_state_change(
-        exec_ctx, arg, g_interested_parties, &g_state,
-        grpc_closure_create(state_changed, arg));
-  }
-}
-
-static void destroy_pollset(grpc_exec_ctx *exec_ctx, void *arg, bool success) {
-  grpc_pollset_destroy(arg);
-}
-
-static grpc_connected_subchannel *connect_subchannel(grpc_subchannel *c) {
-  gpr_mu *mu;
-  grpc_pollset *pollset = gpr_malloc(grpc_pollset_size());
-  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
-  grpc_pollset_init(pollset, &mu);
-  g_interested_parties = grpc_pollset_set_create();
-  grpc_pollset_set_add_pollset(&exec_ctx, g_interested_parties, pollset);
-  grpc_subchannel_notify_on_state_change(&exec_ctx, c, g_interested_parties,
-                                         &g_state,
-                                         grpc_closure_create(state_changed, c));
-  grpc_exec_ctx_flush(&exec_ctx);
-  gpr_mu_lock(mu);
-  while (g_state != GRPC_CHANNEL_READY) {
-    grpc_pollset_worker *worker = NULL;
-    grpc_pollset_work(&exec_ctx, pollset, &worker, gpr_now(GPR_CLOCK_MONOTONIC),
-                      GRPC_TIMEOUT_SECONDS_TO_DEADLINE(1));
-    gpr_mu_unlock(mu);
-    grpc_exec_ctx_flush(&exec_ctx);
-    gpr_mu_lock(mu);
-  }
-  grpc_pollset_shutdown(&exec_ctx, pollset,
-                        grpc_closure_create(destroy_pollset, pollset));
-  grpc_pollset_set_destroy(g_interested_parties);
-  gpr_mu_unlock(mu);
-  grpc_exec_ctx_finish(&exec_ctx);
-  gpr_free(pollset);
-  return grpc_subchannel_get_connected_subchannel(c);
-}
-
-static void chttp2_init_client_micro_fullstack(grpc_end2end_test_fixture *f,
-                                               grpc_channel_args *client_args) {
-  micro_fullstack_fixture_data *ffd = f->fixture_data;
-  grpc_connectivity_state conn_state;
-  grpc_connected_subchannel *connected_subchannel;
-  char *ipv4_localaddr;
-
-  gpr_asprintf(&ipv4_localaddr, "ipv4:%s", ffd->localaddr);
-  ffd->master_channel =
-      channel_create(ipv4_localaddr, client_args, &ffd->sniffed_subchannel);
-  gpr_free(ipv4_localaddr);
-  gpr_log(GPR_INFO, "MASTER CHANNEL %p ", ffd->master_channel);
-  /* the following will block. That's ok for this test */
-  conn_state = grpc_channel_check_connectivity_state(ffd->master_channel,
-                                                     1 /* try to connect */);
-  GPR_ASSERT(conn_state == GRPC_CHANNEL_IDLE);
-
-  /* here sniffed_subchannel should be ready to use */
-  GPR_ASSERT(conn_state == GRPC_CHANNEL_IDLE);
-  GPR_ASSERT(ffd->sniffed_subchannel != NULL);
-
-  connected_subchannel = connect_subchannel(ffd->sniffed_subchannel);
-  f->client = grpc_client_uchannel_create(ffd->sniffed_subchannel, client_args);
-  grpc_client_uchannel_set_connected_subchannel(f->client,
-                                                connected_subchannel);
-  gpr_log(GPR_INFO, "CHANNEL WRAPPING SUBCHANNEL: %p(%p)", f->client,
-          ffd->sniffed_subchannel);
-
-  GPR_ASSERT(f->client);
-}
-
-static void chttp2_init_server_micro_fullstack(grpc_end2end_test_fixture *f,
-                                               grpc_channel_args *server_args) {
-  micro_fullstack_fixture_data *ffd = f->fixture_data;
-  if (f->server) {
-    grpc_server_destroy(f->server);
-  }
-  f->server = grpc_server_create(server_args, NULL);
-  grpc_server_register_completion_queue(f->server, f->cq, NULL);
-  GPR_ASSERT(grpc_server_add_insecure_http2_port(f->server, ffd->localaddr));
-  grpc_server_start(f->server);
-}
-
-static void chttp2_tear_down_micro_fullstack(grpc_end2end_test_fixture *f) {
-  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
-  micro_fullstack_fixture_data *ffd = f->fixture_data;
-  grpc_channel_destroy(ffd->master_channel);
-  if (ffd->sniffed_subchannel) {
-    GRPC_SUBCHANNEL_UNREF(&exec_ctx, ffd->sniffed_subchannel, "sniffed");
-  }
-  gpr_free(ffd->localaddr);
-  gpr_free(ffd);
-  grpc_exec_ctx_finish(&exec_ctx);
-}
-
-/* All test configurations */
-static grpc_end2end_test_config configs[] = {
-    {"chttp2/micro_fullstack", 0, chttp2_create_fixture_micro_fullstack,
-     chttp2_init_client_micro_fullstack, chttp2_init_server_micro_fullstack,
-     chttp2_tear_down_micro_fullstack},
-};
-
-int main(int argc, char **argv) {
-  size_t i;
-
-  grpc_test_init(argc, argv);
-  grpc_init();
-
-  for (i = 0; i < sizeof(configs) / sizeof(*configs); i++) {
-    grpc_end2end_tests(argc, argv, configs[i]);
-  }
-
-  grpc_shutdown();
-
-  return 0;
-}
diff --git a/test/core/end2end/fixtures/h2_uds.c b/test/core/end2end/fixtures/h2_uds.c
index 3092827..1bdcdef 100644
--- a/test/core/end2end/fixtures/h2_uds.c
+++ b/test/core/end2end/fixtures/h2_uds.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -37,13 +37,6 @@
 #include <string.h>
 #include <unistd.h>
 
-#include "src/core/channel/client_channel.h"
-#include "src/core/channel/connected_channel.h"
-#include "src/core/channel/http_server_filter.h"
-#include "src/core/support/string.h"
-#include "src/core/surface/channel.h"
-#include "src/core/surface/server.h"
-#include "src/core/transport/chttp2_transport.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/host_port.h>
 #include <grpc/support/log.h>
@@ -51,6 +44,13 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
+#include "src/core/lib/channel/client_channel.h"
+#include "src/core/lib/channel/connected_channel.h"
+#include "src/core/lib/channel/http_server_filter.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/surface/channel.h"
+#include "src/core/lib/surface/server.h"
+#include "src/core/lib/transport/chttp2_transport.h"
 #include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
 
diff --git a/test/core/end2end/gen_build_yaml.py b/test/core/end2end/gen_build_yaml.py
index 3c24440..adf2b3c 100755
--- a/test/core/end2end/gen_build_yaml.py
+++ b/test/core/end2end/gen_build_yaml.py
@@ -67,7 +67,6 @@
     'h2_ssl': default_secure_fixture_options,
     'h2_ssl_proxy': default_secure_fixture_options._replace(includes_proxy=True,
                                                             ci_mac=False),
-    'h2_uchannel': default_unsecure_fixture_options._replace(fullstack=False),
     'h2_uds': uds_fixture_options,
 }
 
diff --git a/test/core/end2end/invalid_call_argument_test.c b/test/core/end2end/invalid_call_argument_test.c
index 2fa1a0a..642b044 100644
--- a/test/core/end2end/invalid_call_argument_test.c
+++ b/test/core/end2end/invalid_call_argument_test.c
@@ -63,7 +63,7 @@
 static struct test_state g_state;
 
 static void prepare_test(int is_client) {
-  int port;
+  int port = grpc_pick_unused_port_or_die();
   char *server_hostport;
   grpc_op *op;
   g_state.is_client = is_client;
@@ -85,7 +85,6 @@
   } else {
     g_state.server = grpc_server_create(NULL, NULL);
     grpc_server_register_completion_queue(g_state.server, g_state.cq, NULL);
-    port = grpc_pick_unused_port_or_die();
     gpr_join_host_port(&server_hostport, "0.0.0.0", port);
     grpc_server_add_insecure_http2_port(g_state.server, server_hostport);
     grpc_server_start(g_state.server);
@@ -131,15 +130,16 @@
     grpc_server_shutdown_and_notify(g_state.server, g_state.cq, tag(1000));
     GPR_ASSERT(grpc_completion_queue_pluck(g_state.cq, tag(1000),
                                            GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                           NULL).type == GRPC_OP_COMPLETE);
+                                           NULL)
+                   .type == GRPC_OP_COMPLETE);
     grpc_server_destroy(g_state.server);
     grpc_call_details_destroy(&g_state.call_details);
     grpc_metadata_array_destroy(&g_state.server_initial_metadata_recv);
   }
   grpc_completion_queue_shutdown(g_state.cq);
   while (grpc_completion_queue_next(g_state.cq,
-                                    gpr_inf_future(GPR_CLOCK_REALTIME),
-                                    NULL).type != GRPC_QUEUE_SHUTDOWN)
+                                    gpr_inf_future(GPR_CLOCK_REALTIME), NULL)
+             .type != GRPC_QUEUE_SHUTDOWN)
     ;
   grpc_completion_queue_destroy(g_state.cq);
 }
diff --git a/test/core/end2end/no_server_test.c b/test/core/end2end/no_server_test.c
index 5c971ea..c1be55d 100644
--- a/test/core/end2end/no_server_test.c
+++ b/test/core/end2end/no_server_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -88,8 +88,9 @@
   GPR_ASSERT(status == GRPC_STATUS_DEADLINE_EXCEEDED);
 
   grpc_completion_queue_shutdown(cq);
-  while (grpc_completion_queue_next(cq, gpr_inf_future(GPR_CLOCK_REALTIME),
-                                    NULL).type != GRPC_QUEUE_SHUTDOWN)
+  while (
+      grpc_completion_queue_next(cq, gpr_inf_future(GPR_CLOCK_REALTIME), NULL)
+          .type != GRPC_QUEUE_SHUTDOWN)
     ;
   grpc_completion_queue_destroy(cq);
   grpc_call_destroy(call);
diff --git a/test/core/end2end/tests/bad_hostname.c b/test/core/end2end/tests/bad_hostname.c
index 1458738..df3f6be 100644
--- a/test/core/end2end/tests/bad_hostname.c
+++ b/test/core/end2end/tests/bad_hostname.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -36,13 +36,13 @@
 #include <stdio.h>
 #include <string.h>
 
-#include "src/core/support/string.h"
 #include <grpc/byte_buffer.h>
 #include <grpc/grpc.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/time.h>
 #include <grpc/support/useful.h>
+#include "src/core/lib/support/string.h"
 #include "test/core/end2end/cq_verifier.h"
 
 enum { TIMEOUT = 200000 };
@@ -77,9 +77,9 @@
 static void shutdown_server(grpc_end2end_test_fixture *f) {
   if (!f->server) return;
   grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
diff --git a/test/core/end2end/tests/binary_metadata.c b/test/core/end2end/tests/binary_metadata.c
index 4eccd16..a4f4afa 100644
--- a/test/core/end2end/tests/binary_metadata.c
+++ b/test/core/end2end/tests/binary_metadata.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -75,9 +75,9 @@
 static void shutdown_server(grpc_end2end_test_fixture *f) {
   if (!f->server) return;
   grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
diff --git a/test/core/end2end/tests/call_creds.c b/test/core/end2end/tests/call_creds.c
index c9d4251..f749a60 100644
--- a/test/core/end2end/tests/call_creds.c
+++ b/test/core/end2end/tests/call_creds.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -36,15 +36,15 @@
 #include <stdio.h>
 #include <string.h>
 
-#include <grpc/grpc_security.h>
 #include <grpc/byte_buffer.h>
+#include <grpc/grpc_security.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/time.h>
 #include <grpc/support/useful.h>
+#include "src/core/lib/security/credentials.h"
+#include "src/core/lib/support/string.h"
 #include "test/core/end2end/cq_verifier.h"
-#include "src/core/security/credentials.h"
-#include "src/core/support/string.h"
 
 static const char iam_token[] = "token";
 static const char iam_selector[] = "selector";
@@ -93,9 +93,9 @@
 static void shutdown_server(grpc_end2end_test_fixture *f) {
   if (!f->server) return;
   grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
diff --git a/test/core/end2end/tests/cancel_after_accept.c b/test/core/end2end/tests/cancel_after_accept.c
index 4646bf7..2025f11 100644
--- a/test/core/end2end/tests/cancel_after_accept.c
+++ b/test/core/end2end/tests/cancel_after_accept.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -76,9 +76,9 @@
 static void shutdown_server(grpc_end2end_test_fixture *f) {
   if (!f->server) return;
   grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
diff --git a/test/core/end2end/tests/cancel_after_client_done.c b/test/core/end2end/tests/cancel_after_client_done.c
index 364598a..bc958a6 100644
--- a/test/core/end2end/tests/cancel_after_client_done.c
+++ b/test/core/end2end/tests/cancel_after_client_done.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -76,9 +76,9 @@
 static void shutdown_server(grpc_end2end_test_fixture *f) {
   if (!f->server) return;
   grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
diff --git a/test/core/end2end/tests/cancel_after_invoke.c b/test/core/end2end/tests/cancel_after_invoke.c
index ec0b0de..5bab10e 100644
--- a/test/core/end2end/tests/cancel_after_invoke.c
+++ b/test/core/end2end/tests/cancel_after_invoke.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -77,9 +77,9 @@
 static void shutdown_server(grpc_end2end_test_fixture *f) {
   if (!f->server) return;
   grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
diff --git a/test/core/end2end/tests/cancel_before_invoke.c b/test/core/end2end/tests/cancel_before_invoke.c
index 7b432fe..8c0becd 100644
--- a/test/core/end2end/tests/cancel_before_invoke.c
+++ b/test/core/end2end/tests/cancel_before_invoke.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -75,9 +75,9 @@
 static void shutdown_server(grpc_end2end_test_fixture *f) {
   if (!f->server) return;
   grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
diff --git a/test/core/end2end/tests/cancel_in_a_vacuum.c b/test/core/end2end/tests/cancel_in_a_vacuum.c
index 214ab2b..7bea7d7 100644
--- a/test/core/end2end/tests/cancel_in_a_vacuum.c
+++ b/test/core/end2end/tests/cancel_in_a_vacuum.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -76,9 +76,9 @@
 static void shutdown_server(grpc_end2end_test_fixture *f) {
   if (!f->server) return;
   grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
diff --git a/test/core/end2end/tests/cancel_with_status.c b/test/core/end2end/tests/cancel_with_status.c
index 1541ca0..e5a1556 100644
--- a/test/core/end2end/tests/cancel_with_status.c
+++ b/test/core/end2end/tests/cancel_with_status.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -36,13 +36,13 @@
 #include <stdio.h>
 #include <string.h>
 
-#include "src/core/support/string.h"
 #include <grpc/byte_buffer.h>
 #include <grpc/grpc.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/time.h>
 #include <grpc/support/useful.h>
+#include "src/core/lib/support/string.h"
 #include "test/core/end2end/cq_verifier.h"
 
 enum { TIMEOUT = 200000 };
@@ -77,9 +77,9 @@
 static void shutdown_server(grpc_end2end_test_fixture *f) {
   if (!f->server) return;
   grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
diff --git a/test/core/end2end/tests/compressed_payload.c b/test/core/end2end/tests/compressed_payload.c
index 33b1d8f..9c25885 100644
--- a/test/core/end2end/tests/compressed_payload.c
+++ b/test/core/end2end/tests/compressed_payload.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -43,10 +43,10 @@
 #include <grpc/support/time.h>
 #include <grpc/support/useful.h>
 
+#include "src/core/lib/channel/channel_args.h"
+#include "src/core/lib/channel/compress_filter.h"
+#include "src/core/lib/surface/call_test_only.h"
 #include "test/core/end2end/cq_verifier.h"
-#include "src/core/channel/channel_args.h"
-#include "src/core/channel/compress_filter.h"
-#include "src/core/surface/call_test_only.h"
 
 enum { TIMEOUT = 200000 };
 
@@ -80,9 +80,9 @@
 static void shutdown_server(grpc_end2end_test_fixture *f) {
   if (!f->server) return;
   grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
diff --git a/test/core/end2end/tests/default_host.c b/test/core/end2end/tests/default_host.c
index dc33034..576d81e 100644
--- a/test/core/end2end/tests/default_host.c
+++ b/test/core/end2end/tests/default_host.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -36,13 +36,13 @@
 #include <stdio.h>
 #include <string.h>
 
-#include "src/core/support/string.h"
 #include <grpc/byte_buffer.h>
 #include <grpc/grpc.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/time.h>
 #include <grpc/support/useful.h>
+#include "src/core/lib/support/string.h"
 #include "test/core/end2end/cq_verifier.h"
 
 enum { TIMEOUT = 200000 };
@@ -77,9 +77,9 @@
 static void shutdown_server(grpc_end2end_test_fixture *f) {
   if (!f->server) return;
   grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
diff --git a/test/core/end2end/tests/empty_batch.c b/test/core/end2end/tests/empty_batch.c
index 24320c0..7f56313 100644
--- a/test/core/end2end/tests/empty_batch.c
+++ b/test/core/end2end/tests/empty_batch.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -36,13 +36,13 @@
 #include <stdio.h>
 #include <string.h>
 
-#include "src/core/support/string.h"
 #include <grpc/byte_buffer.h>
 #include <grpc/grpc.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/time.h>
 #include <grpc/support/useful.h>
+#include "src/core/lib/support/string.h"
 #include "test/core/end2end/cq_verifier.h"
 
 enum { TIMEOUT = 200000 };
@@ -77,9 +77,9 @@
 static void shutdown_server(grpc_end2end_test_fixture *f) {
   if (!f->server) return;
   grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
diff --git a/test/core/end2end/tests/high_initial_seqno.c b/test/core/end2end/tests/high_initial_seqno.c
index 8d16ef5..2196fbd 100644
--- a/test/core/end2end/tests/high_initial_seqno.c
+++ b/test/core/end2end/tests/high_initial_seqno.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -44,7 +44,7 @@
 #include <grpc/support/time.h>
 #include <grpc/support/useful.h>
 
-#include "src/core/support/string.h"
+#include "src/core/lib/support/string.h"
 #include "test/core/end2end/cq_verifier.h"
 
 enum { TIMEOUT = 200000 };
@@ -79,9 +79,9 @@
 static void shutdown_server(grpc_end2end_test_fixture *f) {
   if (!f->server) return;
   grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
diff --git a/test/core/end2end/tests/hpack_size.c b/test/core/end2end/tests/hpack_size.c
index fd4fe34..2774e50 100644
--- a/test/core/end2end/tests/hpack_size.c
+++ b/test/core/end2end/tests/hpack_size.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -44,7 +44,7 @@
 #include <grpc/support/time.h>
 #include <grpc/support/useful.h>
 
-#include "src/core/support/string.h"
+#include "src/core/lib/support/string.h"
 #include "test/core/end2end/cq_verifier.h"
 
 static void *tag(intptr_t t) { return (void *)t; }
@@ -262,9 +262,9 @@
 static void shutdown_server(grpc_end2end_test_fixture *f) {
   if (!f->server) return;
   grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
diff --git a/test/core/end2end/tests/invoke_large_request.c b/test/core/end2end/tests/invoke_large_request.c
index f0b0198..7f03ebb 100644
--- a/test/core/end2end/tests/invoke_large_request.c
+++ b/test/core/end2end/tests/invoke_large_request.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -73,9 +73,9 @@
 static void shutdown_server(grpc_end2end_test_fixture *f) {
   if (!f->server) return;
   grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
diff --git a/test/core/end2end/tests/large_metadata.c b/test/core/end2end/tests/large_metadata.c
index 1b41e89..4b77974 100644
--- a/test/core/end2end/tests/large_metadata.c
+++ b/test/core/end2end/tests/large_metadata.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -75,9 +75,9 @@
 static void shutdown_server(grpc_end2end_test_fixture *f) {
   if (!f->server) return;
   grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
diff --git a/test/core/end2end/tests/max_concurrent_streams.c b/test/core/end2end/tests/max_concurrent_streams.c
index d6b2a06..05472bf 100644
--- a/test/core/end2end/tests/max_concurrent_streams.c
+++ b/test/core/end2end/tests/max_concurrent_streams.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -75,9 +75,9 @@
 static void shutdown_server(grpc_end2end_test_fixture *f) {
   if (!f->server) return;
   grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
diff --git a/test/core/end2end/tests/max_message_length.c b/test/core/end2end/tests/max_message_length.c
index 59ab7f4..2202306 100644
--- a/test/core/end2end/tests/max_message_length.c
+++ b/test/core/end2end/tests/max_message_length.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -75,9 +75,9 @@
 static void shutdown_server(grpc_end2end_test_fixture *f) {
   if (!f->server) return;
   grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
diff --git a/test/core/end2end/tests/negative_deadline.c b/test/core/end2end/tests/negative_deadline.c
index 2109310..e5031af 100644
--- a/test/core/end2end/tests/negative_deadline.c
+++ b/test/core/end2end/tests/negative_deadline.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -36,13 +36,13 @@
 #include <stdio.h>
 #include <string.h>
 
-#include "src/core/support/string.h"
 #include <grpc/byte_buffer.h>
 #include <grpc/grpc.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/time.h>
 #include <grpc/support/useful.h>
+#include "src/core/lib/support/string.h"
 #include "test/core/end2end/cq_verifier.h"
 
 enum { TIMEOUT = 200000 };
@@ -77,9 +77,9 @@
 static void shutdown_server(grpc_end2end_test_fixture *f) {
   if (!f->server) return;
   grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
diff --git a/test/core/end2end/tests/no_op.c b/test/core/end2end/tests/no_op.c
index 4bc1d63..efcd496 100644
--- a/test/core/end2end/tests/no_op.c
+++ b/test/core/end2end/tests/no_op.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -75,9 +75,9 @@
 static void shutdown_server(grpc_end2end_test_fixture *f) {
   if (!f->server) return;
   grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
diff --git a/test/core/end2end/tests/payload.c b/test/core/end2end/tests/payload.c
index bc220cb..74af28d 100644
--- a/test/core/end2end/tests/payload.c
+++ b/test/core/end2end/tests/payload.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -75,9 +75,9 @@
 static void shutdown_server(grpc_end2end_test_fixture *f) {
   if (!f->server) return;
   grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
diff --git a/test/core/end2end/tests/ping_pong_streaming.c b/test/core/end2end/tests/ping_pong_streaming.c
index 8351f50..7af0149 100644
--- a/test/core/end2end/tests/ping_pong_streaming.c
+++ b/test/core/end2end/tests/ping_pong_streaming.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -75,9 +75,9 @@
 static void shutdown_server(grpc_end2end_test_fixture *f) {
   if (!f->server) return;
   grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
diff --git a/test/core/end2end/tests/registered_call.c b/test/core/end2end/tests/registered_call.c
index d9d2b19..09f452f 100644
--- a/test/core/end2end/tests/registered_call.c
+++ b/test/core/end2end/tests/registered_call.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -36,13 +36,13 @@
 #include <stdio.h>
 #include <string.h>
 
-#include "src/core/support/string.h"
 #include <grpc/byte_buffer.h>
 #include <grpc/grpc.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/time.h>
 #include <grpc/support/useful.h>
+#include "src/core/lib/support/string.h"
 #include "test/core/end2end/cq_verifier.h"
 
 enum { TIMEOUT = 200000 };
@@ -77,9 +77,9 @@
 static void shutdown_server(grpc_end2end_test_fixture *f) {
   if (!f->server) return;
   grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
diff --git a/test/core/end2end/tests/request_with_flags.c b/test/core/end2end/tests/request_with_flags.c
index 340aba6..433622e 100644
--- a/test/core/end2end/tests/request_with_flags.c
+++ b/test/core/end2end/tests/request_with_flags.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -41,7 +41,7 @@
 #include <grpc/support/log.h>
 #include <grpc/support/time.h>
 #include <grpc/support/useful.h>
-#include "src/core/transport/byte_stream.h"
+#include "src/core/lib/transport/byte_stream.h"
 #include "test/core/end2end/cq_verifier.h"
 
 enum { TIMEOUT = 200000 };
@@ -76,9 +76,9 @@
 static void shutdown_server(grpc_end2end_test_fixture *f) {
   if (!f->server) return;
   grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
diff --git a/test/core/end2end/tests/request_with_payload.c b/test/core/end2end/tests/request_with_payload.c
index 1aced6a..07f9993 100644
--- a/test/core/end2end/tests/request_with_payload.c
+++ b/test/core/end2end/tests/request_with_payload.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -75,9 +75,9 @@
 static void shutdown_server(grpc_end2end_test_fixture *f) {
   if (!f->server) return;
   grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
diff --git a/test/core/end2end/tests/server_finishes_request.c b/test/core/end2end/tests/server_finishes_request.c
index 6bca8d4..d3ac2d5 100644
--- a/test/core/end2end/tests/server_finishes_request.c
+++ b/test/core/end2end/tests/server_finishes_request.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -36,13 +36,13 @@
 #include <stdio.h>
 #include <string.h>
 
-#include "src/core/support/string.h"
 #include <grpc/byte_buffer.h>
 #include <grpc/grpc.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/time.h>
 #include <grpc/support/useful.h>
+#include "src/core/lib/support/string.h"
 #include "test/core/end2end/cq_verifier.h"
 
 enum { TIMEOUT = 200000 };
@@ -77,9 +77,9 @@
 static void shutdown_server(grpc_end2end_test_fixture *f) {
   if (!f->server) return;
   grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
diff --git a/test/core/end2end/tests/simple_delayed_request.c b/test/core/end2end/tests/simple_delayed_request.c
index 0afef75..e9f5a38 100644
--- a/test/core/end2end/tests/simple_delayed_request.c
+++ b/test/core/end2end/tests/simple_delayed_request.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -63,9 +63,9 @@
 static void shutdown_server(grpc_end2end_test_fixture *f) {
   if (!f->server) return;
   grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
diff --git a/test/core/end2end/tests/simple_metadata.c b/test/core/end2end/tests/simple_metadata.c
index c5084a5..0e214e3 100644
--- a/test/core/end2end/tests/simple_metadata.c
+++ b/test/core/end2end/tests/simple_metadata.c
@@ -75,9 +75,9 @@
 static void shutdown_server(grpc_end2end_test_fixture *f) {
   if (!f->server) return;
   grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
diff --git a/test/core/end2end/tests/simple_request.c b/test/core/end2end/tests/simple_request.c
index 3720cd1..bc634ef 100644
--- a/test/core/end2end/tests/simple_request.c
+++ b/test/core/end2end/tests/simple_request.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -36,13 +36,13 @@
 #include <stdio.h>
 #include <string.h>
 
-#include "src/core/support/string.h"
 #include <grpc/byte_buffer.h>
 #include <grpc/grpc.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/time.h>
 #include <grpc/support/useful.h>
+#include "src/core/lib/support/string.h"
 #include "test/core/end2end/cq_verifier.h"
 
 enum { TIMEOUT = 200000 };
@@ -77,9 +77,9 @@
 static void shutdown_server(grpc_end2end_test_fixture *f) {
   if (!f->server) return;
   grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
diff --git a/test/core/end2end/tests/trailing_metadata.c b/test/core/end2end/tests/trailing_metadata.c
index 78525e9..03f4f3e 100644
--- a/test/core/end2end/tests/trailing_metadata.c
+++ b/test/core/end2end/tests/trailing_metadata.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -75,9 +75,9 @@
 static void shutdown_server(grpc_end2end_test_fixture *f) {
   if (!f->server) return;
   grpc_server_shutdown_and_notify(f->server, f->cq, tag(1000));
-  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
-                                         GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5),
-                                         NULL).type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(
+                 f->cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
diff --git a/test/core/fling/client.c b/test/core/fling/client.c
index b36aef3..6a4eb1c 100644
--- a/test/core/fling/client.c
+++ b/test/core/fling/client.c
@@ -41,7 +41,7 @@
 #include <grpc/support/log.h>
 #include <grpc/support/time.h>
 #include <grpc/support/useful.h>
-#include "src/core/profiling/timers.h"
+#include "src/core/lib/profiling/timers.h"
 #include "test/core/util/grpc_profiler.h"
 #include "test/core/util/test_config.h"
 
diff --git a/test/core/fling/fling_stream_test.c b/test/core/fling/fling_stream_test.c
index 78a7337..2807504 100644
--- a/test/core/fling/fling_stream_test.c
+++ b/test/core/fling/fling_stream_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,19 +35,19 @@
 #define _POSIX_SOURCE
 #endif
 
-#include <unistd.h>
 #include <assert.h>
-#include <stdio.h>
-#include <string.h>
 #include <signal.h>
+#include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <sys/types.h>
 #include <sys/wait.h>
+#include <unistd.h>
 
-#include "src/core/support/string.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/host_port.h>
 #include <grpc/support/string_util.h>
+#include "src/core/lib/support/string.h"
 #include "test/core/util/port.h"
 
 int main(int argc, char **argv) {
diff --git a/test/core/fling/fling_test.c b/test/core/fling/fling_test.c
index cf43ecf..46456a2 100644
--- a/test/core/fling/fling_test.c
+++ b/test/core/fling/fling_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,14 +31,14 @@
  *
  */
 
-#include <string.h>
 #include <stdio.h>
+#include <string.h>
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/host_port.h>
 #include <grpc/support/string_util.h>
 #include <grpc/support/subprocess.h>
-#include "src/core/support/string.h"
+#include "src/core/lib/support/string.h"
 #include "test/core/util/port.h"
 
 int main(int argc, char **argv) {
diff --git a/test/core/fling/server.c b/test/core/fling/server.c
index 42be20e..4fef21f 100644
--- a/test/core/fling/server.c
+++ b/test/core/fling/server.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -49,7 +49,7 @@
 #include <grpc/support/host_port.h>
 #include <grpc/support/log.h>
 #include <grpc/support/time.h>
-#include "src/core/profiling/timers.h"
+#include "src/core/lib/profiling/timers.h"
 #include "test/core/end2end/data/ssl_test_data.h"
 #include "test/core/util/grpc_profiler.h"
 #include "test/core/util/port.h"
diff --git a/test/core/httpcli/format_request_test.c b/test/core/http/format_request_test.c
similarity index 88%
rename from test/core/httpcli/format_request_test.c
rename to test/core/http/format_request_test.c
index da85004..a676420 100644
--- a/test/core/httpcli/format_request_test.c
+++ b/test/core/http/format_request_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/httpcli/format_request.h"
+#include "src/core/lib/http/format_request.h"
 
 #include <string.h>
 
@@ -39,15 +39,15 @@
 #include "test/core/util/test_config.h"
 
 static void test_format_get_request(void) {
-  grpc_httpcli_header hdr = {"x-yz", "abc"};
+  grpc_http_header hdr = {"x-yz", "abc"};
   grpc_httpcli_request req;
   gpr_slice slice;
 
   memset(&req, 0, sizeof(req));
   req.host = "example.com";
-  req.path = "/index.html";
-  req.hdr_count = 1;
-  req.hdrs = &hdr;
+  req.http.path = "/index.html";
+  req.http.hdr_count = 1;
+  req.http.hdrs = &hdr;
 
   slice = grpc_httpcli_format_get_request(&req);
 
@@ -64,7 +64,7 @@
 }
 
 static void test_format_post_request(void) {
-  grpc_httpcli_header hdr = {"x-yz", "abc"};
+  grpc_http_header hdr = {"x-yz", "abc"};
   grpc_httpcli_request req;
   gpr_slice slice;
   char body_bytes[] = "fake body";
@@ -72,9 +72,9 @@
 
   memset(&req, 0, sizeof(req));
   req.host = "example.com";
-  req.path = "/index.html";
-  req.hdr_count = 1;
-  req.hdrs = &hdr;
+  req.http.path = "/index.html";
+  req.http.hdr_count = 1;
+  req.http.hdrs = &hdr;
 
   slice = grpc_httpcli_format_post_request(&req, body_bytes, body_len);
 
@@ -94,15 +94,15 @@
 }
 
 static void test_format_post_request_no_body(void) {
-  grpc_httpcli_header hdr = {"x-yz", "abc"};
+  grpc_http_header hdr = {"x-yz", "abc"};
   grpc_httpcli_request req;
   gpr_slice slice;
 
   memset(&req, 0, sizeof(req));
   req.host = "example.com";
-  req.path = "/index.html";
-  req.hdr_count = 1;
-  req.hdrs = &hdr;
+  req.http.path = "/index.html";
+  req.http.hdr_count = 1;
+  req.http.hdrs = &hdr;
 
   slice = grpc_httpcli_format_post_request(&req, NULL, 0);
 
@@ -119,7 +119,7 @@
 }
 
 static void test_format_post_request_content_type_override(void) {
-  grpc_httpcli_header hdrs[2];
+  grpc_http_header hdrs[2];
   grpc_httpcli_request req;
   gpr_slice slice;
   char body_bytes[] = "fake%20body";
@@ -131,9 +131,9 @@
   hdrs[1].value = "application/x-www-form-urlencoded";
   memset(&req, 0, sizeof(req));
   req.host = "example.com";
-  req.path = "/index.html";
-  req.hdr_count = 2;
-  req.hdrs = hdrs;
+  req.http.path = "/index.html";
+  req.http.hdr_count = 2;
+  req.http.hdrs = hdrs;
 
   slice = grpc_httpcli_format_post_request(&req, body_bytes, body_len);
 
@@ -142,8 +142,7 @@
                       "POST /index.html HTTP/1.0\r\n"
                       "Host: example.com\r\n"
                       "Connection: close\r\n"
-                      "User-Agent: " GRPC_HTTPCLI_USER_AGENT
-                      "\r\n"
+                      "User-Agent: " GRPC_HTTPCLI_USER_AGENT "\r\n"
                       "x-yz: abc\r\n"
                       "Content-Type: application/x-www-form-urlencoded\r\n"
                       "Content-Length: 11\r\n"
diff --git a/test/core/httpcli/httpcli_test.c b/test/core/http/httpcli_test.c
similarity index 96%
rename from test/core/httpcli/httpcli_test.c
rename to test/core/http/httpcli_test.c
index fbc5d4a..1fdbcd0 100644
--- a/test/core/httpcli/httpcli_test.c
+++ b/test/core/http/httpcli_test.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/httpcli/httpcli.h"
+#include "src/core/lib/http/httpcli.h"
 
 #include <string.h>
 
@@ -41,7 +41,7 @@
 #include <grpc/support/string_util.h>
 #include <grpc/support/subprocess.h>
 #include <grpc/support/sync.h>
-#include "src/core/iomgr/iomgr.h"
+#include "src/core/lib/iomgr/iomgr.h"
 #include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
 
@@ -83,7 +83,7 @@
 
   memset(&req, 0, sizeof(req));
   req.host = host;
-  req.path = "/get";
+  req.http.path = "/get";
   req.handshaker = &grpc_httpcli_plaintext;
 
   grpc_httpcli_get(&exec_ctx, &g_context, g_pollset, &req, n_seconds_time(15),
@@ -114,7 +114,7 @@
 
   memset(&req, 0, sizeof(req));
   req.host = host;
-  req.path = "/post";
+  req.http.path = "/post";
   req.handshaker = &grpc_httpcli_plaintext;
 
   grpc_httpcli_post(&exec_ctx, &g_context, g_pollset, &req, "hello", 5,
@@ -161,7 +161,7 @@
   } else {
     arg_shift = 1;
     gpr_asprintf(&args[0], "%s/../../tools/distrib/python_wrapper.sh", root);
-    gpr_asprintf(&args[1], "%s/../../test/core/httpcli/test_server.py", root);
+    gpr_asprintf(&args[1], "%s/../../test/core/http/test_server.py", root);
   }
 
   /* start the server */
diff --git a/test/core/httpcli/httpscli_test.c b/test/core/http/httpscli_test.c
similarity index 96%
rename from test/core/httpcli/httpscli_test.c
rename to test/core/http/httpscli_test.c
index 04c57db..71db3e7 100644
--- a/test/core/httpcli/httpscli_test.c
+++ b/test/core/http/httpscli_test.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/httpcli/httpcli.h"
+#include "src/core/lib/http/httpcli.h"
 
 #include <string.h>
 
@@ -41,7 +41,7 @@
 #include <grpc/support/string_util.h>
 #include <grpc/support/subprocess.h>
 #include <grpc/support/sync.h>
-#include "src/core/iomgr/iomgr.h"
+#include "src/core/lib/iomgr/iomgr.h"
 #include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
 
@@ -84,7 +84,7 @@
   memset(&req, 0, sizeof(req));
   req.host = host;
   req.ssl_host_override = "foo.test.google.fr";
-  req.path = "/get";
+  req.http.path = "/get";
   req.handshaker = &grpc_httpcli_ssl;
 
   grpc_httpcli_get(&exec_ctx, &g_context, g_pollset, &req, n_seconds_time(15),
@@ -116,7 +116,7 @@
   memset(&req, 0, sizeof(req));
   req.host = host;
   req.ssl_host_override = "foo.test.google.fr";
-  req.path = "/post";
+  req.http.path = "/post";
   req.handshaker = &grpc_httpcli_ssl;
 
   grpc_httpcli_post(&exec_ctx, &g_context, g_pollset, &req, "hello", 5,
@@ -163,7 +163,7 @@
   } else {
     arg_shift = 1;
     gpr_asprintf(&args[0], "%s/../../tools/distrib/python_wrapper.sh", root);
-    gpr_asprintf(&args[1], "%s/../../test/core/httpcli/test_server.py", root);
+    gpr_asprintf(&args[1], "%s/../../test/core/http/test_server.py", root);
   }
 
   /* start the server */
diff --git a/test/core/http/parser_test.c b/test/core/http/parser_test.c
new file mode 100644
index 0000000..eeb4de7
--- /dev/null
+++ b/test/core/http/parser_test.c
@@ -0,0 +1,260 @@
+/*
+ *
+ * Copyright 2015-2016, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include "src/core/lib/http/parser.h"
+
+#include <stdarg.h>
+#include <string.h>
+
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+#include <grpc/support/string_util.h>
+#include <grpc/support/useful.h>
+#include "test/core/util/slice_splitter.h"
+#include "test/core/util/test_config.h"
+
+static void test_request_succeeds(grpc_slice_split_mode split_mode,
+                                  char *request, char *expect_method,
+                                  grpc_http_version expect_version,
+                                  char *expect_path, char *expect_body, ...) {
+  grpc_http_parser parser;
+  gpr_slice input_slice = gpr_slice_from_copied_string(request);
+  size_t num_slices;
+  size_t i;
+  gpr_slice *slices;
+  va_list args;
+
+  grpc_split_slices(split_mode, &input_slice, 1, &slices, &num_slices);
+  gpr_slice_unref(input_slice);
+
+  grpc_http_parser_init(&parser);
+
+  for (i = 0; i < num_slices; i++) {
+    GPR_ASSERT(grpc_http_parser_parse(&parser, slices[i]));
+    gpr_slice_unref(slices[i]);
+  }
+  GPR_ASSERT(grpc_http_parser_eof(&parser));
+
+  GPR_ASSERT(GRPC_HTTP_REQUEST == parser.type);
+  GPR_ASSERT(0 == strcmp(expect_method, parser.http.request.method));
+  GPR_ASSERT(0 == strcmp(expect_path, parser.http.request.path));
+  GPR_ASSERT(expect_version == parser.http.request.version);
+
+  if (expect_body != NULL) {
+    GPR_ASSERT(strlen(expect_body) == parser.http.request.body_length);
+    GPR_ASSERT(0 == memcmp(expect_body, parser.http.request.body,
+                           parser.http.request.body_length));
+  } else {
+    GPR_ASSERT(parser.http.request.body_length == 0);
+  }
+
+  va_start(args, expect_body);
+  i = 0;
+  for (;;) {
+    char *expect_key;
+    char *expect_value;
+    expect_key = va_arg(args, char *);
+    if (!expect_key) break;
+    GPR_ASSERT(i < parser.http.request.hdr_count);
+    expect_value = va_arg(args, char *);
+    GPR_ASSERT(expect_value);
+    GPR_ASSERT(0 == strcmp(expect_key, parser.http.request.hdrs[i].key));
+    GPR_ASSERT(0 == strcmp(expect_value, parser.http.request.hdrs[i].value));
+    i++;
+  }
+  va_end(args);
+  GPR_ASSERT(i == parser.http.request.hdr_count);
+
+  grpc_http_parser_destroy(&parser);
+  gpr_free(slices);
+}
+
+static void test_succeeds(grpc_slice_split_mode split_mode, char *response,
+                          int expect_status, char *expect_body, ...) {
+  grpc_http_parser parser;
+  gpr_slice input_slice = gpr_slice_from_copied_string(response);
+  size_t num_slices;
+  size_t i;
+  gpr_slice *slices;
+  va_list args;
+
+  grpc_split_slices(split_mode, &input_slice, 1, &slices, &num_slices);
+  gpr_slice_unref(input_slice);
+
+  grpc_http_parser_init(&parser);
+
+  for (i = 0; i < num_slices; i++) {
+    GPR_ASSERT(grpc_http_parser_parse(&parser, slices[i]));
+    gpr_slice_unref(slices[i]);
+  }
+  GPR_ASSERT(grpc_http_parser_eof(&parser));
+
+  GPR_ASSERT(GRPC_HTTP_RESPONSE == parser.type);
+  GPR_ASSERT(expect_status == parser.http.response.status);
+  if (expect_body != NULL) {
+    GPR_ASSERT(strlen(expect_body) == parser.http.response.body_length);
+    GPR_ASSERT(0 == memcmp(expect_body, parser.http.response.body,
+                           parser.http.response.body_length));
+  } else {
+    GPR_ASSERT(parser.http.response.body_length == 0);
+  }
+
+  va_start(args, expect_body);
+  i = 0;
+  for (;;) {
+    char *expect_key;
+    char *expect_value;
+    expect_key = va_arg(args, char *);
+    if (!expect_key) break;
+    GPR_ASSERT(i < parser.http.response.hdr_count);
+    expect_value = va_arg(args, char *);
+    GPR_ASSERT(expect_value);
+    GPR_ASSERT(0 == strcmp(expect_key, parser.http.response.hdrs[i].key));
+    GPR_ASSERT(0 == strcmp(expect_value, parser.http.response.hdrs[i].value));
+    i++;
+  }
+  va_end(args);
+  GPR_ASSERT(i == parser.http.response.hdr_count);
+
+  grpc_http_parser_destroy(&parser);
+  gpr_free(slices);
+}
+
+static void test_fails(grpc_slice_split_mode split_mode, char *response) {
+  grpc_http_parser parser;
+  gpr_slice input_slice = gpr_slice_from_copied_string(response);
+  size_t num_slices;
+  size_t i;
+  gpr_slice *slices;
+  int done = 0;
+
+  grpc_split_slices(split_mode, &input_slice, 1, &slices, &num_slices);
+  gpr_slice_unref(input_slice);
+
+  grpc_http_parser_init(&parser);
+
+  for (i = 0; i < num_slices; i++) {
+    if (!done && !grpc_http_parser_parse(&parser, slices[i])) {
+      done = 1;
+    }
+    gpr_slice_unref(slices[i]);
+  }
+  if (!done && !grpc_http_parser_eof(&parser)) {
+    done = 1;
+  }
+  GPR_ASSERT(done);
+
+  grpc_http_parser_destroy(&parser);
+  gpr_free(slices);
+}
+
+int main(int argc, char **argv) {
+  size_t i;
+  const grpc_slice_split_mode split_modes[] = {GRPC_SLICE_SPLIT_IDENTITY,
+                                               GRPC_SLICE_SPLIT_ONE_BYTE};
+  char *tmp1, *tmp2;
+
+  grpc_test_init(argc, argv);
+
+  for (i = 0; i < GPR_ARRAY_SIZE(split_modes); i++) {
+    test_succeeds(split_modes[i],
+                  "HTTP/1.0 200 OK\r\n"
+                  "xyz: abc\r\n"
+                  "\r\n"
+                  "hello world!",
+                  200, "hello world!", "xyz", "abc", NULL);
+    test_succeeds(split_modes[i],
+                  "HTTP/1.0 404 Not Found\r\n"
+                  "\r\n",
+                  404, NULL, NULL);
+    test_succeeds(split_modes[i],
+                  "HTTP/1.1 200 OK\r\n"
+                  "xyz: abc\r\n"
+                  "\r\n"
+                  "hello world!",
+                  200, "hello world!", "xyz", "abc", NULL);
+    test_request_succeeds(split_modes[i],
+                          "GET / HTTP/1.0\r\n"
+                          "\r\n",
+                          "GET", GRPC_HTTP_HTTP10, "/", NULL, NULL);
+    test_request_succeeds(split_modes[i],
+                          "GET / HTTP/1.0\r\n"
+                          "\r\n"
+                          "xyz",
+                          "GET", GRPC_HTTP_HTTP10, "/", "xyz", NULL);
+    test_request_succeeds(split_modes[i],
+                          "GET / HTTP/1.1\r\n"
+                          "\r\n"
+                          "xyz",
+                          "GET", GRPC_HTTP_HTTP11, "/", "xyz", NULL);
+    test_request_succeeds(split_modes[i],
+                          "GET / HTTP/2.0\r\n"
+                          "\r\n"
+                          "xyz",
+                          "GET", GRPC_HTTP_HTTP20, "/", "xyz", NULL);
+    test_request_succeeds(split_modes[i],
+                          "GET / HTTP/1.0\r\n"
+                          "xyz: abc\r\n"
+                          "\r\n"
+                          "xyz",
+                          "GET", GRPC_HTTP_HTTP10, "/", "xyz", "xyz", "abc",
+                          NULL);
+    test_fails(split_modes[i], "HTTP/1.0\r\n");
+    test_fails(split_modes[i], "HTTP/1.2\r\n");
+    test_fails(split_modes[i], "HTTP/1.0 000 XYX\r\n");
+    test_fails(split_modes[i], "HTTP/1.0 200 OK\n");
+    test_fails(split_modes[i], "HTTP/1.0 200 OK\r\n");
+    test_fails(split_modes[i], "HTTP/1.0 200 OK\r\nFoo x\r\n");
+    test_fails(split_modes[i],
+               "HTTP/1.0 200 OK\r\n"
+               "xyz: abc\r\n"
+               "  def\r\n"
+               "\r\n"
+               "hello world!");
+    test_fails(split_modes[i], "GET\r\n");
+    test_fails(split_modes[i], "GET /\r\n");
+    test_fails(split_modes[i], "GET / HTTP/0.0\r\n");
+    test_fails(split_modes[i], "GET / ____/1.0\r\n");
+    test_fails(split_modes[i], "GET / HTTP/1.2\r\n");
+
+    tmp1 = gpr_malloc(2 * GRPC_HTTP_PARSER_MAX_HEADER_LENGTH);
+    memset(tmp1, 'a', 2 * GRPC_HTTP_PARSER_MAX_HEADER_LENGTH - 1);
+    tmp1[2 * GRPC_HTTP_PARSER_MAX_HEADER_LENGTH - 1] = 0;
+    gpr_asprintf(&tmp2, "HTTP/1.0 200 OK\r\nxyz: %s\r\n\r\n", tmp1);
+    test_fails(split_modes[i], tmp2);
+    gpr_free(tmp1);
+    gpr_free(tmp2);
+  }
+
+  return 0;
+}
diff --git a/test/core/httpcli/test_server.py b/test/core/http/test_server.py
similarity index 94%
rename from test/core/httpcli/test_server.py
rename to test/core/http/test_server.py
index dbbf5ce..9f8d052 100755
--- a/test/core/httpcli/test_server.py
+++ b/test/core/http/test_server.py
@@ -1,5 +1,5 @@
 #!/usr/bin/env python2.7
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -36,8 +36,8 @@
 import ssl
 import sys
 
-_PEM = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), '../../..', 'src/core/tsi/test_creds/server1.pem'))
-_KEY = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), '../../..', 'src/core/tsi/test_creds/server1.key'))
+_PEM = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), '../../..', 'src/core/lib/tsi/test_creds/server1.pem'))
+_KEY = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), '../../..', 'src/core/lib/tsi/test_creds/server1.key'))
 print _PEM
 open(_PEM).close()
 
diff --git a/test/core/httpcli/parser_test.c b/test/core/httpcli/parser_test.c
deleted file mode 100644
index a26ddd2..0000000
--- a/test/core/httpcli/parser_test.c
+++ /dev/null
@@ -1,171 +0,0 @@
-/*
- *
- * Copyright 2015, Google Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#include "src/core/httpcli/parser.h"
-
-#include <stdarg.h>
-#include <string.h>
-
-#include <grpc/support/alloc.h>
-#include <grpc/support/log.h>
-#include <grpc/support/string_util.h>
-#include <grpc/support/useful.h>
-#include "test/core/util/slice_splitter.h"
-#include "test/core/util/test_config.h"
-
-static void test_succeeds(grpc_slice_split_mode split_mode, char *response,
-                          int expect_status, char *expect_body, ...) {
-  grpc_httpcli_parser parser;
-  gpr_slice input_slice = gpr_slice_from_copied_string(response);
-  size_t num_slices;
-  size_t i;
-  gpr_slice *slices;
-  va_list args;
-
-  grpc_split_slices(split_mode, &input_slice, 1, &slices, &num_slices);
-  gpr_slice_unref(input_slice);
-
-  grpc_httpcli_parser_init(&parser);
-
-  for (i = 0; i < num_slices; i++) {
-    GPR_ASSERT(grpc_httpcli_parser_parse(&parser, slices[i]));
-    gpr_slice_unref(slices[i]);
-  }
-  GPR_ASSERT(grpc_httpcli_parser_eof(&parser));
-
-  GPR_ASSERT(expect_status == parser.r.status);
-  if (expect_body != NULL) {
-    GPR_ASSERT(strlen(expect_body) == parser.r.body_length);
-    GPR_ASSERT(0 == memcmp(expect_body, parser.r.body, parser.r.body_length));
-  } else {
-    GPR_ASSERT(parser.r.body_length == 0);
-  }
-
-  va_start(args, expect_body);
-  i = 0;
-  for (;;) {
-    char *expect_key;
-    char *expect_value;
-    expect_key = va_arg(args, char *);
-    if (!expect_key) break;
-    GPR_ASSERT(i < parser.r.hdr_count);
-    expect_value = va_arg(args, char *);
-    GPR_ASSERT(expect_value);
-    GPR_ASSERT(0 == strcmp(expect_key, parser.r.hdrs[i].key));
-    GPR_ASSERT(0 == strcmp(expect_value, parser.r.hdrs[i].value));
-    i++;
-  }
-  va_end(args);
-  GPR_ASSERT(i == parser.r.hdr_count);
-
-  grpc_httpcli_parser_destroy(&parser);
-  gpr_free(slices);
-}
-
-static void test_fails(grpc_slice_split_mode split_mode, char *response) {
-  grpc_httpcli_parser parser;
-  gpr_slice input_slice = gpr_slice_from_copied_string(response);
-  size_t num_slices;
-  size_t i;
-  gpr_slice *slices;
-  int done = 0;
-
-  grpc_split_slices(split_mode, &input_slice, 1, &slices, &num_slices);
-  gpr_slice_unref(input_slice);
-
-  grpc_httpcli_parser_init(&parser);
-
-  for (i = 0; i < num_slices; i++) {
-    if (!done && !grpc_httpcli_parser_parse(&parser, slices[i])) {
-      done = 1;
-    }
-    gpr_slice_unref(slices[i]);
-  }
-  if (!done && !grpc_httpcli_parser_eof(&parser)) {
-    done = 1;
-  }
-  GPR_ASSERT(done);
-
-  grpc_httpcli_parser_destroy(&parser);
-  gpr_free(slices);
-}
-
-int main(int argc, char **argv) {
-  size_t i;
-  const grpc_slice_split_mode split_modes[] = {GRPC_SLICE_SPLIT_IDENTITY,
-                                               GRPC_SLICE_SPLIT_ONE_BYTE};
-  char *tmp1, *tmp2;
-
-  grpc_test_init(argc, argv);
-
-  for (i = 0; i < GPR_ARRAY_SIZE(split_modes); i++) {
-    test_succeeds(split_modes[i],
-                  "HTTP/1.0 200 OK\r\n"
-                  "xyz: abc\r\n"
-                  "\r\n"
-                  "hello world!",
-                  200, "hello world!", "xyz", "abc", NULL);
-    test_succeeds(split_modes[i],
-                  "HTTP/1.0 404 Not Found\r\n"
-                  "\r\n",
-                  404, NULL, NULL);
-    test_succeeds(split_modes[i],
-                  "HTTP/1.1 200 OK\r\n"
-                  "xyz: abc\r\n"
-                  "\r\n"
-                  "hello world!",
-                  200, "hello world!", "xyz", "abc", NULL);
-    test_fails(split_modes[i], "HTTP/1.0\r\n");
-    test_fails(split_modes[i], "HTTP/1.2\r\n");
-    test_fails(split_modes[i], "HTTP/1.0 000 XYX\r\n");
-    test_fails(split_modes[i], "HTTP/1.0 200 OK\n");
-    test_fails(split_modes[i], "HTTP/1.0 200 OK\r\n");
-    test_fails(split_modes[i], "HTTP/1.0 200 OK\r\nFoo x\r\n");
-    test_fails(split_modes[i],
-               "HTTP/1.0 200 OK\r\n"
-               "xyz: abc\r\n"
-               "  def\r\n"
-               "\r\n"
-               "hello world!");
-
-    tmp1 = gpr_malloc(2 * GRPC_HTTPCLI_MAX_HEADER_LENGTH);
-    memset(tmp1, 'a', 2 * GRPC_HTTPCLI_MAX_HEADER_LENGTH - 1);
-    tmp1[2 * GRPC_HTTPCLI_MAX_HEADER_LENGTH - 1] = 0;
-    gpr_asprintf(&tmp2, "HTTP/1.0 200 OK\r\nxyz: %s\r\n\r\n", tmp1);
-    test_fails(split_modes[i], tmp2);
-    gpr_free(tmp1);
-    gpr_free(tmp2);
-  }
-
-  return 0;
-}
diff --git a/test/core/iomgr/endpoint_pair_test.c b/test/core/iomgr/endpoint_pair_test.c
index c3a9108..a91a9a7 100644
--- a/test/core/iomgr/endpoint_pair_test.c
+++ b/test/core/iomgr/endpoint_pair_test.c
@@ -31,14 +31,14 @@
  *
  */
 
-#include "src/core/iomgr/tcp_posix.h"
+#include "src/core/lib/iomgr/tcp_posix.h"
 
 #include <grpc/grpc.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/time.h>
 #include <grpc/support/useful.h>
-#include "src/core/iomgr/endpoint_pair.h"
+#include "src/core/lib/iomgr/endpoint_pair.h"
 #include "test/core/iomgr/endpoint_tests.h"
 #include "test/core/util/test_config.h"
 
diff --git a/test/core/iomgr/endpoint_tests.h b/test/core/iomgr/endpoint_tests.h
index 8ea47e3..c7542a0 100644
--- a/test/core/iomgr/endpoint_tests.h
+++ b/test/core/iomgr/endpoint_tests.h
@@ -36,7 +36,7 @@
 
 #include <sys/types.h>
 
-#include "src/core/iomgr/endpoint.h"
+#include "src/core/lib/iomgr/endpoint.h"
 
 typedef struct grpc_endpoint_test_config grpc_endpoint_test_config;
 typedef struct grpc_endpoint_test_fixture grpc_endpoint_test_fixture;
diff --git a/test/core/iomgr/fd_conservation_posix_test.c b/test/core/iomgr/fd_conservation_posix_test.c
index 401bf70..aae94e7 100644
--- a/test/core/iomgr/fd_conservation_posix_test.c
+++ b/test/core/iomgr/fd_conservation_posix_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,9 +35,9 @@
 
 #include <grpc/support/log.h>
 
+#include "src/core/lib/iomgr/endpoint_pair.h"
+#include "src/core/lib/iomgr/iomgr.h"
 #include "test/core/util/test_config.h"
-#include "src/core/iomgr/endpoint_pair.h"
-#include "src/core/iomgr/iomgr.h"
 
 int main(int argc, char **argv) {
   int i;
diff --git a/test/core/iomgr/fd_posix_test.c b/test/core/iomgr/fd_posix_test.c
index 8c64a2e..86eaab3 100644
--- a/test/core/iomgr/fd_posix_test.c
+++ b/test/core/iomgr/fd_posix_test.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/iomgr/ev_posix.h"
+#include "src/core/lib/iomgr/ev_posix.h"
 
 #include <ctype.h>
 #include <errno.h>
@@ -50,7 +50,8 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/time.h>
 
-#include "src/core/iomgr/iomgr.h"
+#include "src/core/lib/iomgr/ev_posix.h"
+#include "src/core/lib/iomgr/iomgr.h"
 #include "test/core/util/test_config.h"
 
 static gpr_mu *g_mu;
diff --git a/test/core/iomgr/resolve_address_test.c b/test/core/iomgr/resolve_address_test.c
index 56ce091..7aec91a 100644
--- a/test/core/iomgr/resolve_address_test.c
+++ b/test/core/iomgr/resolve_address_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,11 +31,11 @@
  *
  */
 
-#include "src/core/iomgr/resolve_address.h"
-#include "src/core/iomgr/executor.h"
+#include "src/core/lib/iomgr/resolve_address.h"
 #include <grpc/support/log.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/time.h>
+#include "src/core/lib/iomgr/executor.h"
 #include "test/core/util/test_config.h"
 
 static gpr_timespec test_deadline(void) {
diff --git a/test/core/iomgr/sockaddr_utils_test.c b/test/core/iomgr/sockaddr_utils_test.c
index a7b57c1..19bee9a 100644
--- a/test/core/iomgr/sockaddr_utils_test.c
+++ b/test/core/iomgr/sockaddr_utils_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/iomgr/sockaddr_utils.h"
+#include "src/core/lib/iomgr/sockaddr_utils.h"
 
 #include <errno.h>
 #include <string.h>
diff --git a/test/core/iomgr/socket_utils_test.c b/test/core/iomgr/socket_utils_test.c
index 58c3fbc..8238a9c 100644
--- a/test/core/iomgr/socket_utils_test.c
+++ b/test/core/iomgr/socket_utils_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -32,7 +32,7 @@
  */
 
 #include <grpc/support/port_platform.h>
-#include "src/core/iomgr/socket_utils_posix.h"
+#include "src/core/lib/iomgr/socket_utils_posix.h"
 
 #include <errno.h>
 #include <string.h>
diff --git a/test/core/iomgr/tcp_client_posix_test.c b/test/core/iomgr/tcp_client_posix_test.c
index 1df25ad..1acaea0 100644
--- a/test/core/iomgr/tcp_client_posix_test.c
+++ b/test/core/iomgr/tcp_client_posix_test.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/iomgr/tcp_client.h"
+#include "src/core/lib/iomgr/tcp_client.h"
 
 #include <errno.h>
 #include <netinet/in.h>
@@ -44,10 +44,10 @@
 #include <grpc/support/log.h>
 #include <grpc/support/time.h>
 
-#include "src/core/iomgr/iomgr.h"
-#include "src/core/iomgr/pollset_set.h"
-#include "src/core/iomgr/socket_utils_posix.h"
-#include "src/core/iomgr/timer.h"
+#include "src/core/lib/iomgr/iomgr.h"
+#include "src/core/lib/iomgr/pollset_set.h"
+#include "src/core/lib/iomgr/socket_utils_posix.h"
+#include "src/core/lib/iomgr/timer.h"
 #include "test/core/util/test_config.h"
 
 static grpc_pollset_set *g_pollset_set;
diff --git a/test/core/iomgr/tcp_posix_test.c b/test/core/iomgr/tcp_posix_test.c
index 4351642..79f18c6 100644
--- a/test/core/iomgr/tcp_posix_test.c
+++ b/test/core/iomgr/tcp_posix_test.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/iomgr/tcp_posix.h"
+#include "src/core/lib/iomgr/tcp_posix.h"
 
 #include <errno.h>
 #include <fcntl.h>
diff --git a/test/core/iomgr/tcp_server_posix_test.c b/test/core/iomgr/tcp_server_posix_test.c
index 7933468..cde147d 100644
--- a/test/core/iomgr/tcp_server_posix_test.c
+++ b/test/core/iomgr/tcp_server_posix_test.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/iomgr/tcp_server.h"
+#include "src/core/lib/iomgr/tcp_server.h"
 
 #include <errno.h>
 #include <netinet/in.h>
@@ -45,8 +45,8 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/time.h>
 
-#include "src/core/iomgr/iomgr.h"
-#include "src/core/iomgr/sockaddr_utils.h"
+#include "src/core/lib/iomgr/iomgr.h"
+#include "src/core/lib/iomgr/sockaddr_utils.h"
 #include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
 
diff --git a/test/core/iomgr/time_averaged_stats_test.c b/test/core/iomgr/time_averaged_stats_test.c
index cb006d1..a49d899 100644
--- a/test/core/iomgr/time_averaged_stats_test.c
+++ b/test/core/iomgr/time_averaged_stats_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/iomgr/time_averaged_stats.h"
+#include "src/core/lib/iomgr/time_averaged_stats.h"
 
 #include <math.h>
 
diff --git a/test/core/iomgr/timer_heap_test.c b/test/core/iomgr/timer_heap_test.c
index dd23a99..d230c83 100644
--- a/test/core/iomgr/timer_heap_test.c
+++ b/test/core/iomgr/timer_heap_test.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/iomgr/timer_heap.h"
+#include "src/core/lib/iomgr/timer_heap.h"
 
 #include <stdlib.h>
 #include <string.h>
diff --git a/test/core/iomgr/timer_list_test.c b/test/core/iomgr/timer_list_test.c
index 7a21fdd..0333a75 100644
--- a/test/core/iomgr/timer_list_test.c
+++ b/test/core/iomgr/timer_list_test.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/iomgr/timer.h"
+#include "src/core/lib/iomgr/timer.h"
 
 #include <string.h>
 
@@ -81,9 +81,8 @@
   }
 
   GPR_ASSERT(!grpc_timer_check(
-                 &exec_ctx,
-                 gpr_time_add(start, gpr_time_from_millis(600, GPR_TIMESPAN)),
-                 NULL));
+      &exec_ctx, gpr_time_add(start, gpr_time_from_millis(600, GPR_TIMESPAN)),
+      NULL));
   grpc_exec_ctx_finish(&exec_ctx);
   for (i = 0; i < 30; i++) {
     GPR_ASSERT(cb_called[i][1] == (i < 10));
@@ -101,9 +100,8 @@
   }
 
   GPR_ASSERT(!grpc_timer_check(
-                 &exec_ctx,
-                 gpr_time_add(start, gpr_time_from_millis(1600, GPR_TIMESPAN)),
-                 NULL));
+      &exec_ctx, gpr_time_add(start, gpr_time_from_millis(1600, GPR_TIMESPAN)),
+      NULL));
   for (i = 0; i < 30; i++) {
     GPR_ASSERT(cb_called[i][1] == (i < 20));
     GPR_ASSERT(cb_called[i][0] == 0);
diff --git a/test/core/iomgr/udp_server_test.c b/test/core/iomgr/udp_server_test.c
index ce3c23b..baba692 100644
--- a/test/core/iomgr/udp_server_test.c
+++ b/test/core/iomgr/udp_server_test.c
@@ -31,17 +31,18 @@
  *
  */
 
-#include "src/core/iomgr/iomgr.h"
-#include "src/core/iomgr/pollset_posix.h"
-#include "src/core/iomgr/udp_server.h"
+#include "src/core/lib/iomgr/udp_server.h"
+#include <grpc/grpc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/time.h>
+#include "src/core/lib/iomgr/ev_posix.h"
+#include "src/core/lib/iomgr/iomgr.h"
 #include "test/core/util/test_config.h"
 
-#include <sys/socket.h>
 #include <netinet/in.h>
 #include <string.h>
+#include <sys/socket.h>
 #include <unistd.h>
 
 #ifdef GRPC_NEED_UDP
diff --git a/test/core/iomgr/workqueue_test.c b/test/core/iomgr/workqueue_test.c
index 8a1faf6..2d9b5d0 100644
--- a/test/core/iomgr/workqueue_test.c
+++ b/test/core/iomgr/workqueue_test.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/iomgr/workqueue.h"
+#include "src/core/lib/iomgr/workqueue.h"
 
 #include <grpc/grpc.h>
 #include <grpc/support/alloc.h>
diff --git a/test/core/json/json_rewrite.c b/test/core/json/json_rewrite.c
index 0c615a9..41090db 100644
--- a/test/core/json/json_rewrite.c
+++ b/test/core/json/json_rewrite.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -38,8 +38,8 @@
 #include <grpc/support/cmdline.h>
 #include <grpc/support/log.h>
 
-#include "src/core/json/json_reader.h"
-#include "src/core/json/json_writer.h"
+#include "src/core/lib/json/json_reader.h"
+#include "src/core/lib/json/json_writer.h"
 
 typedef struct json_writer_userdata { FILE *out; } json_writer_userdata;
 
diff --git a/test/core/json/json_rewrite_test.c b/test/core/json/json_rewrite_test.c
index d99cb0d..33fc98e 100644
--- a/test/core/json/json_rewrite_test.c
+++ b/test/core/json/json_rewrite_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,12 +35,12 @@
 #include <stdlib.h>
 
 #include <grpc/support/alloc.h>
-#include <grpc/support/useful.h>
 #include <grpc/support/log.h>
+#include <grpc/support/useful.h>
 #include "test/core/util/test_config.h"
 
-#include "src/core/json/json_reader.h"
-#include "src/core/json/json_writer.h"
+#include "src/core/lib/json/json_reader.h"
+#include "src/core/lib/json/json_writer.h"
 
 typedef struct json_writer_userdata { FILE *cmp; } json_writer_userdata;
 
diff --git a/test/core/json/json_stream_error_test.c b/test/core/json/json_stream_error_test.c
index 4007767..630e1b0 100644
--- a/test/core/json/json_stream_error_test.c
+++ b/test/core/json/json_stream_error_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,12 +35,12 @@
 #include <stdlib.h>
 
 #include <grpc/support/alloc.h>
-#include <grpc/support/useful.h>
 #include <grpc/support/log.h>
+#include <grpc/support/useful.h>
 #include "test/core/util/test_config.h"
 
-#include "src/core/json/json_reader.h"
-#include "src/core/json/json_writer.h"
+#include "src/core/lib/json/json_reader.h"
+#include "src/core/lib/json/json_writer.h"
 
 static int g_string_clear_once = 0;
 
diff --git a/test/core/json/json_test.c b/test/core/json/json_test.c
index 5add80d..2a00762 100644
--- a/test/core/json/json_test.c
+++ b/test/core/json/json_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -34,11 +34,11 @@
 #include <string.h>
 
 #include <grpc/support/alloc.h>
-#include <grpc/support/useful.h>
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
-#include "src/core/json/json.h"
-#include "src/core/support/string.h"
+#include <grpc/support/useful.h>
+#include "src/core/lib/json/json.h"
+#include "src/core/lib/support/string.h"
 
 #include "test/core/util/test_config.h"
 
@@ -66,7 +66,7 @@
     {"\"\\ud834\\udd1e\"", "\"\\ud834\\udd1e\""},
     /* Testing nested empty containers. */
     {
-     " [ [ ] , { } , [ ] ] ", "[[],{},[]]",
+        " [ [ ] , { } , [ ] ] ", "[[],{},[]]",
     },
     /* Testing escapes and control chars in key strings. */
     {" { \"\\u007f\x7f\\n\\r\\\"\\f\\b\\\\a , b\": 1, \"\": 0 } ",
diff --git a/test/core/network_benchmarks/low_level_ping_pong.c b/test/core/network_benchmarks/low_level_ping_pong.c
index dd1544c..b8c6954 100644
--- a/test/core/network_benchmarks/low_level_ping_pong.c
+++ b/test/core/network_benchmarks/low_level_ping_pong.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -49,13 +49,13 @@
 #endif
 #include <sys/socket.h>
 
-#include "src/core/iomgr/socket_utils_posix.h"
 #include <grpc/support/cmdline.h>
 #include <grpc/support/histogram.h>
 #include <grpc/support/log.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/time.h>
 #include <grpc/support/useful.h>
+#include "src/core/lib/iomgr/socket_utils_posix.h"
 
 typedef struct fd_pair {
   int read_fd;
diff --git a/test/core/profiling/timers_test.c b/test/core/profiling/timers_test.c
index 7070fe4..a383119 100644
--- a/test/core/profiling/timers_test.c
+++ b/test/core/profiling/timers_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/profiling/timers.h"
+#include "src/core/lib/profiling/timers.h"
 #include <stdlib.h>
 #include "test/core/util/test_config.h"
 
diff --git a/test/core/security/auth_context_test.c b/test/core/security/auth_context_test.c
index d091c7e..84d2afb 100644
--- a/test/core/security/auth_context_test.c
+++ b/test/core/security/auth_context_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -33,8 +33,8 @@
 
 #include <string.h>
 
-#include "src/core/security/security_context.h"
-#include "src/core/support/string.h"
+#include "src/core/lib/security/security_context.h"
+#include "src/core/lib/support/string.h"
 #include "test/core/util/test_config.h"
 
 #include <grpc/support/log.h>
diff --git a/test/core/security/b64_test.c b/test/core/security/b64_test.c
index 772514e..ab15df2 100644
--- a/test/core/security/b64_test.c
+++ b/test/core/security/b64_test.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/security/b64.h"
+#include "src/core/lib/security/b64.h"
 
 #include <string.h>
 
diff --git a/test/core/security/create_jwt.c b/test/core/security/create_jwt.c
index 4c0cf43..3416de7 100644
--- a/test/core/security/create_jwt.c
+++ b/test/core/security/create_jwt.c
@@ -34,9 +34,9 @@
 #include <stdio.h>
 #include <string.h>
 
-#include "src/core/security/credentials.h"
-#include "src/core/security/json_token.h"
-#include "src/core/support/load_file.h"
+#include "src/core/lib/security/credentials.h"
+#include "src/core/lib/security/json_token.h"
+#include "src/core/lib/support/load_file.h"
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/cmdline.h>
diff --git a/test/core/security/credentials_test.c b/test/core/security/credentials_test.c
index 98133ef..e741e36 100644
--- a/test/core/security/credentials_test.c
+++ b/test/core/security/credentials_test.c
@@ -33,7 +33,7 @@
 
 #include <grpc/support/port_platform.h>
 
-#include "src/core/security/credentials.h"
+#include "src/core/lib/security/credentials.h"
 
 #include <openssl/rsa.h>
 #include <stdlib.h>
@@ -44,11 +44,11 @@
 #include <grpc/support/string_util.h>
 #include <grpc/support/time.h>
 
-#include "src/core/httpcli/httpcli.h"
-#include "src/core/security/json_token.h"
-#include "src/core/support/env.h"
-#include "src/core/support/tmpfile.h"
-#include "src/core/support/string.h"
+#include "src/core/lib/http/httpcli.h"
+#include "src/core/lib/security/json_token.h"
+#include "src/core/lib/support/env.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/support/tmpfile.h"
 #include "test/core/util/test_config.h"
 
 /* -- Mock channel credentials. -- */
@@ -536,12 +536,12 @@
   GPR_ASSERT(request->handshaker != &grpc_httpcli_ssl);
   GPR_ASSERT(strcmp(request->host, "metadata") == 0);
   GPR_ASSERT(
-      strcmp(request->path,
+      strcmp(request->http.path,
              "/computeMetadata/v1/instance/service-accounts/default/token") ==
       0);
-  GPR_ASSERT(request->hdr_count == 1);
-  GPR_ASSERT(strcmp(request->hdrs[0].key, "Metadata-Flavor") == 0);
-  GPR_ASSERT(strcmp(request->hdrs[0].value, "Google") == 0);
+  GPR_ASSERT(request->http.hdr_count == 1);
+  GPR_ASSERT(strcmp(request->http.hdrs[0].key, "Metadata-Flavor") == 0);
+  GPR_ASSERT(strcmp(request->http.hdrs[0].value, "Google") == 0);
 }
 
 static int compute_engine_httpcli_get_success_override(
@@ -639,11 +639,12 @@
   gpr_free(expected_body);
   GPR_ASSERT(request->handshaker == &grpc_httpcli_ssl);
   GPR_ASSERT(strcmp(request->host, GRPC_GOOGLE_OAUTH2_SERVICE_HOST) == 0);
-  GPR_ASSERT(strcmp(request->path, GRPC_GOOGLE_OAUTH2_SERVICE_TOKEN_PATH) == 0);
-  GPR_ASSERT(request->hdr_count == 1);
-  GPR_ASSERT(strcmp(request->hdrs[0].key, "Content-Type") == 0);
   GPR_ASSERT(
-      strcmp(request->hdrs[0].value, "application/x-www-form-urlencoded") == 0);
+      strcmp(request->http.path, GRPC_GOOGLE_OAUTH2_SERVICE_TOKEN_PATH) == 0);
+  GPR_ASSERT(request->http.hdr_count == 1);
+  GPR_ASSERT(strcmp(request->http.hdrs[0].key, "Content-Type") == 0);
+  GPR_ASSERT(strcmp(request->http.hdrs[0].value,
+                    "application/x-www-form-urlencoded") == 0);
 }
 
 static int refresh_token_httpcli_post_success(
@@ -898,12 +899,12 @@
     gpr_timespec deadline, grpc_httpcli_response_cb on_response,
     void *user_data) {
   grpc_httpcli_response response = http_response(200, "");
-  grpc_httpcli_header header;
+  grpc_http_header header;
   header.key = "Metadata-Flavor";
   header.value = "Google";
   response.hdr_count = 1;
   response.hdrs = &header;
-  GPR_ASSERT(strcmp(request->path, "/") == 0);
+  GPR_ASSERT(strcmp(request->http.path, "/") == 0);
   GPR_ASSERT(strcmp(request->host, "metadata.google.internal") == 0);
   on_response(exec_ctx, user_data, &response);
   return 1;
@@ -961,7 +962,7 @@
     void *user_data) {
   /* No magic header. */
   grpc_httpcli_response response = http_response(200, "");
-  GPR_ASSERT(strcmp(request->path, "/") == 0);
+  GPR_ASSERT(strcmp(request->http.path, "/") == 0);
   GPR_ASSERT(strcmp(request->host, "metadata.google.internal") == 0);
   on_response(exec_ctx, user_data, &response);
   return 1;
diff --git a/test/core/security/fetch_oauth2.c b/test/core/security/fetch_oauth2.c
index 87b54f1..1f4e180 100644
--- a/test/core/security/fetch_oauth2.c
+++ b/test/core/security/fetch_oauth2.c
@@ -42,8 +42,8 @@
 #include <grpc/support/slice.h>
 #include <grpc/support/sync.h>
 
-#include "src/core/security/credentials.h"
-#include "src/core/support/load_file.h"
+#include "src/core/lib/security/credentials.h"
+#include "src/core/lib/support/load_file.h"
 #include "test/core/security/oauth2_utils.h"
 
 static grpc_call_credentials *create_refresh_token_creds(
diff --git a/test/core/security/json_token_test.c b/test/core/security/json_token_test.c
index 4d80c16..460d529 100644
--- a/test/core/security/json_token_test.c
+++ b/test/core/security/json_token_test.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/security/json_token.h"
+#include "src/core/lib/security/json_token.h"
 
 #include <openssl/evp.h>
 #include <string.h>
@@ -41,8 +41,8 @@
 #include <grpc/support/log.h>
 #include <grpc/support/slice.h>
 
-#include "src/core/json/json.h"
-#include "src/core/security/b64.h"
+#include "src/core/lib/json/json.h"
+#include "src/core/lib/security/b64.h"
 #include "test/core/util/test_config.h"
 
 /* This JSON key was generated with the GCE console and revoked immediately.
diff --git a/test/core/security/jwt_verifier_test.c b/test/core/security/jwt_verifier_test.c
index 6b3b818..4af7d71 100644
--- a/test/core/security/jwt_verifier_test.c
+++ b/test/core/security/jwt_verifier_test.c
@@ -31,19 +31,20 @@
  *
  */
 
-#include "src/core/security/jwt_verifier.h"
+#include "src/core/lib/security/jwt_verifier.h"
 
 #include <string.h>
 
 #include <grpc/grpc.h>
+
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/slice.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/httpcli/httpcli.h"
-#include "src/core/security/b64.h"
-#include "src/core/security/json_token.h"
+#include "src/core/lib/http/httpcli.h"
+#include "src/core/lib/security/b64.h"
+#include "src/core/lib/security/json_token.h"
 #include "test/core/util/test_config.h"
 
 /* This JSON key was generated with the GCE console and revoked immediately.
@@ -289,7 +290,7 @@
   grpc_httpcli_response response = http_response(200, good_google_email_keys());
   GPR_ASSERT(request->handshaker == &grpc_httpcli_ssl);
   GPR_ASSERT(strcmp(request->host, "www.googleapis.com") == 0);
-  GPR_ASSERT(strcmp(request->path,
+  GPR_ASSERT(strcmp(request->http.path,
                     "/robot/v1/metadata/x509/"
                     "777-abaslkan11hlb6nmim3bpspl31ud@developer."
                     "gserviceaccount.com") == 0);
@@ -337,7 +338,7 @@
   grpc_httpcli_response response = http_response(200, gpr_strdup(good_jwk_set));
   GPR_ASSERT(request->handshaker == &grpc_httpcli_ssl);
   GPR_ASSERT(strcmp(request->host, "keys.bar.com") == 0);
-  GPR_ASSERT(strcmp(request->path, "/jwk/foo@bar.com") == 0);
+  GPR_ASSERT(strcmp(request->http.path, "/jwk/foo@bar.com") == 0);
   on_response(exec_ctx, user_data, &response);
   gpr_free(response.body);
   return 1;
@@ -373,7 +374,7 @@
   grpc_httpcli_response response = http_response(200, gpr_strdup(good_jwk_set));
   GPR_ASSERT(request->handshaker == &grpc_httpcli_ssl);
   GPR_ASSERT(strcmp(request->host, "www.googleapis.com") == 0);
-  GPR_ASSERT(strcmp(request->path, "/oauth2/v3/certs") == 0);
+  GPR_ASSERT(strcmp(request->http.path, "/oauth2/v3/certs") == 0);
   on_response(exec_ctx, user_data, &response);
   gpr_free(response.body);
   return 1;
@@ -388,7 +389,7 @@
       http_response(200, gpr_strdup(good_openid_config));
   GPR_ASSERT(request->handshaker == &grpc_httpcli_ssl);
   GPR_ASSERT(strcmp(request->host, "accounts.google.com") == 0);
-  GPR_ASSERT(strcmp(request->path, GRPC_OPENID_CONFIG_URL_SUFFIX) == 0);
+  GPR_ASSERT(strcmp(request->http.path, GRPC_OPENID_CONFIG_URL_SUFFIX) == 0);
   grpc_httpcli_set_override(httpcli_get_jwk_set,
                             httpcli_post_should_not_be_called);
   on_response(exec_ctx, user_data, &response);
diff --git a/test/core/security/oauth2_utils.c b/test/core/security/oauth2_utils.c
index 9b70aff..52259e6 100644
--- a/test/core/security/oauth2_utils.c
+++ b/test/core/security/oauth2_utils.c
@@ -42,7 +42,7 @@
 #include <grpc/support/slice.h>
 #include <grpc/support/sync.h>
 
-#include "src/core/security/credentials.h"
+#include "src/core/lib/security/credentials.h"
 
 typedef struct {
   gpr_mu *mu;
diff --git a/test/core/security/oauth2_utils.h b/test/core/security/oauth2_utils.h
index b35fe79..5930f47 100644
--- a/test/core/security/oauth2_utils.h
+++ b/test/core/security/oauth2_utils.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -34,7 +34,7 @@
 #ifndef GRPC_TEST_CORE_SECURITY_OAUTH2_UTILS_H
 #define GRPC_TEST_CORE_SECURITY_OAUTH2_UTILS_H
 
-#include "src/core/security/credentials.h"
+#include "src/core/lib/security/credentials.h"
 
 #ifdef __cplusplus
 extern "C" {
diff --git a/test/core/security/print_google_default_creds_token.c b/test/core/security/print_google_default_creds_token.c
index 09673f3..49812f7 100644
--- a/test/core/security/print_google_default_creds_token.c
+++ b/test/core/security/print_google_default_creds_token.c
@@ -42,8 +42,8 @@
 #include <grpc/support/slice.h>
 #include <grpc/support/sync.h>
 
-#include "src/core/security/credentials.h"
-#include "src/core/support/string.h"
+#include "src/core/lib/security/credentials.h"
+#include "src/core/lib/support/string.h"
 
 typedef struct {
   gpr_mu *mu;
diff --git a/test/core/security/secure_endpoint_test.c b/test/core/security/secure_endpoint_test.c
index 0e8c38a..f6884ec 100644
--- a/test/core/security/secure_endpoint_test.c
+++ b/test/core/security/secure_endpoint_test.c
@@ -39,10 +39,10 @@
 #include <grpc/grpc.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include "src/core/iomgr/endpoint_pair.h"
-#include "src/core/iomgr/iomgr.h"
-#include "src/core/security/secure_endpoint.h"
-#include "src/core/tsi/fake_transport_security.h"
+#include "src/core/lib/iomgr/endpoint_pair.h"
+#include "src/core/lib/iomgr/iomgr.h"
+#include "src/core/lib/security/secure_endpoint.h"
+#include "src/core/lib/tsi/fake_transport_security.h"
 #include "test/core/util/test_config.h"
 
 static gpr_mu *g_mu;
diff --git a/test/core/security/security_connector_test.c b/test/core/security/security_connector_test.c
index 609d874..b080343 100644
--- a/test/core/security/security_connector_test.c
+++ b/test/core/security/security_connector_test.c
@@ -40,13 +40,13 @@
 #include <grpc/support/string_util.h>
 #include <grpc/support/useful.h>
 
-#include "src/core/security/security_connector.h"
-#include "src/core/security/security_context.h"
-#include "src/core/support/env.h"
-#include "src/core/support/tmpfile.h"
-#include "src/core/support/string.h"
-#include "src/core/tsi/ssl_transport_security.h"
-#include "src/core/tsi/transport_security.h"
+#include "src/core/lib/security/security_connector.h"
+#include "src/core/lib/security/security_context.h"
+#include "src/core/lib/support/env.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/support/tmpfile.h"
+#include "src/core/lib/tsi/ssl_transport_security.h"
+#include "src/core/lib/tsi/transport_security.h"
 #include "test/core/util/test_config.h"
 
 static int check_transport_security_type(const grpc_auth_context *ctx) {
diff --git a/test/core/security/verify_jwt.c b/test/core/security/verify_jwt.c
index eb86589..c08e03d 100644
--- a/test/core/security/verify_jwt.c
+++ b/test/core/security/verify_jwt.c
@@ -42,7 +42,7 @@
 #include <grpc/support/slice.h>
 #include <grpc/support/sync.h>
 
-#include "src/core/security/jwt_verifier.h"
+#include "src/core/lib/security/jwt_verifier.h"
 
 typedef struct {
   grpc_pollset *pollset;
diff --git a/test/core/statistics/census_log_tests.c b/test/core/statistics/census_log_tests.c
index 77cc57d..fef8e9e 100644
--- a/test/core/statistics/census_log_tests.c
+++ b/test/core/statistics/census_log_tests.c
@@ -31,10 +31,7 @@
  *
  */
 
-#include "src/core/statistics/census_log.h"
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
+#include "src/core/lib/statistics/census_log.h"
 #include <grpc/support/cpu.h>
 #include <grpc/support/log.h>
 #include <grpc/support/port_platform.h>
@@ -42,6 +39,9 @@
 #include <grpc/support/thd.h>
 #include <grpc/support/time.h>
 #include <grpc/support/useful.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 #include "test/core/util/test_config.h"
 
 /* Fills in 'record' of size 'size'. Each byte in record is filled in with the
diff --git a/test/core/statistics/census_stub_test.c b/test/core/statistics/census_stub_test.c
index 8e409a3..df5d25b 100644
--- a/test/core/statistics/census_stub_test.c
+++ b/test/core/statistics/census_stub_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -34,10 +34,10 @@
 #include <stdio.h>
 #include <stdlib.h>
 
-#include "src/core/statistics/census_interface.h"
-#include "src/core/statistics/census_rpc_stats.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
+#include "src/core/lib/statistics/census_interface.h"
+#include "src/core/lib/statistics/census_rpc_stats.h"
 #include "test/core/util/test_config.h"
 
 /* Tests census noop stubs in a simulated rpc flow */
diff --git a/test/core/statistics/hash_table_test.c b/test/core/statistics/hash_table_test.c
index 3b119db..903d297 100644
--- a/test/core/statistics/hash_table_test.c
+++ b/test/core/statistics/hash_table_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,13 +35,13 @@
 #include <stdlib.h>
 #include <string.h>
 
-#include "src/core/statistics/hash_table.h"
+#include "src/core/lib/statistics/hash_table.h"
 
-#include "src/core/support/murmur_hash.h"
-#include "src/core/support/string.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/time.h>
+#include "src/core/lib/support/murmur_hash.h"
+#include "src/core/lib/support/string.h"
 #include "test/core/util/test_config.h"
 
 static uint64_t hash64(const void *k) {
@@ -65,8 +65,8 @@
 static void test_create_table(void) {
   /* Create table with uint64 key type */
   census_ht *ht = NULL;
-  census_ht_option ht_options = {CENSUS_HT_UINT64, 1999, NULL, NULL, NULL,
-                                 NULL};
+  census_ht_option ht_options = {
+      CENSUS_HT_UINT64, 1999, NULL, NULL, NULL, NULL};
   ht = census_ht_create(&ht_options);
   GPR_ASSERT(ht != NULL);
   GPR_ASSERT(census_ht_get_size(ht) == 0);
@@ -120,8 +120,8 @@
 
 /* Test that there is no memory leak when keys and values are owned by table. */
 static void test_value_and_key_deleter(void) {
-  census_ht_option opt = {CENSUS_HT_POINTER, 7, &hash64, &cmp_str_keys,
-                          &free_data, &free_data};
+  census_ht_option opt = {CENSUS_HT_POINTER, 7,          &hash64,
+                          &cmp_str_keys,     &free_data, &free_data};
   census_ht *ht = census_ht_create(&opt);
   census_ht_key key;
   char *val = NULL;
@@ -185,8 +185,8 @@
 }
 
 static void test_insertion_and_deletion_with_high_collision_rate(void) {
-  census_ht_option opt = {CENSUS_HT_POINTER, 13, &force_collision,
-                          &cmp_str_keys, NULL, NULL};
+  census_ht_option opt = {CENSUS_HT_POINTER, 13,   &force_collision,
+                          &cmp_str_keys,     NULL, NULL};
   census_ht *ht = census_ht_create(&opt);
   char key_str[1000][GPR_LTOA_MIN_BUFSIZE];
   uint64_t val = 0;
@@ -209,12 +209,12 @@
 }
 
 static void test_table_with_string_key(void) {
-  census_ht_option opt = {CENSUS_HT_POINTER, 7, &hash64, &cmp_str_keys, NULL,
-                          NULL};
+  census_ht_option opt = {CENSUS_HT_POINTER, 7,    &hash64,
+                          &cmp_str_keys,     NULL, NULL};
   census_ht *ht = census_ht_create(&opt);
-  const char *keys[] = {"k1", "a", "000", "apple",
-                        "banana_a_long_long_long_banana", "%$", "111", "foo",
-                        "b"};
+  const char *keys[] = {
+      "k1", "a",   "000", "apple", "banana_a_long_long_long_banana",
+      "%$", "111", "foo", "b"};
   const int vals[] = {0, 1, 2, 3, 4, 5, 6, 7, 8};
   int i = 0;
   GPR_ASSERT(ht != NULL);
diff --git a/test/core/statistics/rpc_stats_test.c b/test/core/statistics/rpc_stats_test.c
index b1d8814..dc2f70b 100644
--- a/test/core/statistics/rpc_stats_test.c
+++ b/test/core/statistics/rpc_stats_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -33,15 +33,15 @@
 
 #include <string.h>
 
-#include "src/core/statistics/census_interface.h"
-#include "src/core/statistics/census_rpc_stats.h"
-#include "src/core/statistics/census_tracing.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/port_platform.h>
 #include <grpc/support/string.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/time.h>
+#include "src/core/lib/statistics/census_interface.h"
+#include "src/core/lib/statistics/census_rpc_stats.h"
+#include "src/core/lib/statistics/census_tracing.h"
 #include "test/core/util/test_config.h"
 
 /* Ensure all possible state transitions are called without causing problem */
diff --git a/test/core/statistics/trace_test.c b/test/core/statistics/trace_test.c
index 7590404..2cc3ddd 100644
--- a/test/core/statistics/trace_test.c
+++ b/test/core/statistics/trace_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,12 +31,9 @@
  *
  */
 
-#include <string.h>
 #include <stdio.h>
+#include <string.h>
 
-#include "src/core/statistics/census_interface.h"
-#include "src/core/statistics/census_tracing.h"
-#include "src/core/statistics/census_tracing.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/port_platform.h>
@@ -44,6 +41,9 @@
 #include <grpc/support/thd.h>
 #include <grpc/support/time.h>
 #include <grpc/support/useful.h>
+#include "src/core/lib/statistics/census_interface.h"
+#include "src/core/lib/statistics/census_tracing.h"
+#include "src/core/lib/statistics/census_tracing.h"
 #include "test/core/util/test_config.h"
 
 /* Ensure all possible state transitions are called without causing problem */
diff --git a/test/core/statistics/window_stats_test.c b/test/core/statistics/window_stats_test.c
index 578138f..ed0d7bb 100644
--- a/test/core/statistics/window_stats_test.c
+++ b/test/core/statistics/window_stats_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,10 +31,10 @@
  *
  */
 
-#include "src/core/statistics/window_stats.h"
-#include <stdlib.h>
+#include "src/core/lib/statistics/window_stats.h"
 #include <grpc/support/log.h>
 #include <grpc/support/time.h>
+#include <stdlib.h>
 #include "test/core/util/test_config.h"
 
 typedef struct test_stat {
diff --git a/test/core/support/alloc_test.c b/test/core/support/alloc_test.c
index 6bdba8c..e2d0c16 100644
--- a/test/core/support/alloc_test.c
+++ b/test/core/support/alloc_test.c
@@ -31,8 +31,8 @@
  *
  */
 
-#include <grpc/support/log.h>
 #include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
 #include "test/core/util/test_config.h"
 
 static void *fake_malloc(size_t size) { return (void *)size; }
diff --git a/test/core/support/backoff_test.c b/test/core/support/backoff_test.c
index 870b60b..13cba7d 100644
--- a/test/core/support/backoff_test.c
+++ b/test/core/support/backoff_test.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/support/backoff.h"
+#include "src/core/lib/support/backoff.h"
 
 #include <grpc/support/log.h>
 
diff --git a/test/core/support/env_test.c b/test/core/support/env_test.c
index 69aebcc..1ab86d6 100644
--- a/test/core/support/env_test.c
+++ b/test/core/support/env_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -37,8 +37,8 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 
-#include "src/core/support/env.h"
-#include "src/core/support/string.h"
+#include "src/core/lib/support/env.h"
+#include "src/core/lib/support/string.h"
 #include "test/core/util/test_config.h"
 
 #define LOG_TEST_NAME(x) gpr_log(GPR_INFO, "%s", x)
diff --git a/test/core/support/load_file_test.c b/test/core/support/load_file_test.c
index 70189b7..6bc7b90 100644
--- a/test/core/support/load_file_test.c
+++ b/test/core/support/load_file_test.c
@@ -38,9 +38,9 @@
 #include <grpc/support/log.h>
 #include <grpc/support/slice.h>
 
-#include "src/core/support/load_file.h"
-#include "src/core/support/tmpfile.h"
-#include "src/core/support/string.h"
+#include "src/core/lib/support/load_file.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/support/tmpfile.h"
 #include "test/core/util/test_config.h"
 
 #define LOG_TEST_NAME(x) gpr_log(GPR_INFO, "%s", x)
diff --git a/test/core/support/murmur_hash_test.c b/test/core/support/murmur_hash_test.c
index 562b956..c93efb4 100644
--- a/test/core/support/murmur_hash_test.c
+++ b/test/core/support/murmur_hash_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/support/murmur_hash.h"
+#include "src/core/lib/support/murmur_hash.h"
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 #include "test/core/util/test_config.h"
diff --git a/test/core/support/stack_lockfree_test.c b/test/core/support/stack_lockfree_test.c
index 0f49e6f..13c8f3c 100644
--- a/test/core/support/stack_lockfree_test.c
+++ b/test/core/support/stack_lockfree_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/support/stack_lockfree.h"
+#include "src/core/lib/support/stack_lockfree.h"
 
 #include <stdlib.h>
 
diff --git a/test/core/support/string_test.c b/test/core/support/string_test.c
index c1d0f12..e5e474d 100644
--- a/test/core/support/string_test.c
+++ b/test/core/support/string_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/support/string.h"
+#include "src/core/lib/support/string.h"
 
 #include <limits.h>
 #include <stddef.h>
diff --git a/test/core/support/sync_test.c b/test/core/support/sync_test.c
index d311eb1..2121a4c 100644
--- a/test/core/support/sync_test.c
+++ b/test/core/support/sync_test.c
@@ -33,13 +33,13 @@
 
 /* Test of gpr synchronization support. */
 
-#include <stdio.h>
-#include <stdlib.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/time.h>
+#include <stdio.h>
+#include <stdlib.h>
 #include "test/core/util/test_config.h"
 
 /* ==================Example use of interface===================
diff --git a/test/core/support/thd_test.c b/test/core/support/thd_test.c
index 0c176da..771c510 100644
--- a/test/core/support/thd_test.c
+++ b/test/core/support/thd_test.c
@@ -33,12 +33,12 @@
 
 /* Test of gpr thread support. */
 
-#include <stdio.h>
-#include <stdlib.h>
 #include <grpc/support/log.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/time.h>
+#include <stdio.h>
+#include <stdlib.h>
 #include "test/core/util/test_config.h"
 
 #define NUM_THREADS 300
diff --git a/test/core/support/time_test.c b/test/core/support/time_test.c
index 6cc3786..643e9ea 100644
--- a/test/core/support/time_test.c
+++ b/test/core/support/time_test.c
@@ -33,14 +33,14 @@
 
 /* Test of gpr time support. */
 
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <limits.h>
 #include <grpc/support/log.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/time.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
 #include "test/core/util/test_config.h"
 
 static void to_fp(void *arg, const char *buf, size_t len) {
diff --git a/test/core/support/tls_test.c b/test/core/support/tls_test.c
index c6fb1a4..7b73e5b 100644
--- a/test/core/support/tls_test.c
+++ b/test/core/support/tls_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -33,12 +33,12 @@
 
 /* Test of gpr thread local storage support. */
 
-#include <stdio.h>
-#include <stdlib.h>
 #include <grpc/support/log.h>
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/tls.h>
+#include <stdio.h>
+#include <stdlib.h>
 #include "test/core/util/test_config.h"
 
 #define NUM_THREADS 100
diff --git a/test/core/support/useful_test.c b/test/core/support/useful_test.c
index 3665bbf..08a8cc9 100644
--- a/test/core/support/useful_test.c
+++ b/test/core/support/useful_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,9 +31,9 @@
  *
  */
 
-#include <grpc/support/useful.h>
-#include <grpc/support/port_platform.h>
 #include <grpc/support/log.h>
+#include <grpc/support/port_platform.h>
+#include <grpc/support/useful.h>
 #include "test/core/util/test_config.h"
 
 int main(int argc, char **argv) {
diff --git a/test/core/surface/byte_buffer_reader_test.c b/test/core/surface/byte_buffer_reader_test.c
index c87fbdc..629bce9 100644
--- a/test/core/surface/byte_buffer_reader_test.c
+++ b/test/core/surface/byte_buffer_reader_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,10 +31,10 @@
  *
  */
 
-#include <grpc/byte_buffer_reader.h>
 #include <grpc/byte_buffer.h>
-#include <grpc/support/slice.h>
+#include <grpc/byte_buffer_reader.h>
 #include <grpc/grpc.h>
+#include <grpc/support/slice.h>
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
@@ -42,7 +42,7 @@
 #include <grpc/support/time.h>
 #include "test/core/util/test_config.h"
 
-#include "src/core/compression/message_compress.h"
+#include "src/core/lib/compression/message_compress.h"
 
 #include <string.h>
 
diff --git a/test/core/surface/channel_create_test.c b/test/core/surface/channel_create_test.c
index 044e766..d5d7d1c 100644
--- a/test/core/surface/channel_create_test.c
+++ b/test/core/surface/channel_create_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -33,7 +33,7 @@
 
 #include <grpc/grpc.h>
 #include <grpc/support/log.h>
-#include "src/core/client_config/resolver_registry.h"
+#include "src/core/lib/client_config/resolver_registry.h"
 #include "test/core/util/test_config.h"
 
 void test_unknown_scheme_target(void) {
diff --git a/test/core/surface/completion_queue_test.c b/test/core/surface/completion_queue_test.c
index ec49840..fa9b363 100644
--- a/test/core/surface/completion_queue_test.c
+++ b/test/core/surface/completion_queue_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,14 +31,14 @@
  *
  */
 
-#include "src/core/surface/completion_queue.h"
+#include "src/core/lib/surface/completion_queue.h"
 
-#include "src/core/iomgr/iomgr.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/time.h>
 #include <grpc/support/useful.h>
+#include "src/core/lib/iomgr/iomgr.h"
 #include "test/core/util/test_config.h"
 
 #define LOG_TEST(x) gpr_log(GPR_INFO, "%s", x)
diff --git a/test/core/surface/lame_client_test.c b/test/core/surface/lame_client_test.c
index 79e53cb..310aa00 100644
--- a/test/core/surface/lame_client_test.c
+++ b/test/core/surface/lame_client_test.c
@@ -36,10 +36,10 @@
 #include <grpc/grpc.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
-#include "src/core/channel/channel_stack.h"
-#include "src/core/iomgr/closure.h"
-#include "src/core/surface/channel.h"
-#include "src/core/transport/transport.h"
+#include "src/core/lib/channel/channel_stack.h"
+#include "src/core/lib/iomgr/closure.h"
+#include "src/core/lib/surface/channel.h"
+#include "src/core/lib/transport/transport.h"
 #include "test/core/end2end/cq_verifier.h"
 #include "test/core/util/test_config.h"
 
diff --git a/test/core/surface/secure_channel_create_test.c b/test/core/surface/secure_channel_create_test.c
index f3e5fef..5c95390 100644
--- a/test/core/surface/secure_channel_create_test.c
+++ b/test/core/surface/secure_channel_create_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -36,10 +36,10 @@
 #include <grpc/grpc.h>
 #include <grpc/grpc_security.h>
 #include <grpc/support/log.h>
-#include "src/core/client_config/resolver_registry.h"
-#include "src/core/security/credentials.h"
-#include "src/core/security/security_connector.h"
-#include "src/core/surface/channel.h"
+#include "src/core/lib/client_config/resolver_registry.h"
+#include "src/core/lib/security/credentials.h"
+#include "src/core/lib/security/security_connector.h"
+#include "src/core/lib/surface/channel.h"
 #include "test/core/util/test_config.h"
 
 void test_unknown_scheme_target(void) {
diff --git a/test/core/surface/server_chttp2_test.c b/test/core/surface/server_chttp2_test.c
index 84b345b..14eb1ff 100644
--- a/test/core/surface/server_chttp2_test.c
+++ b/test/core/surface/server_chttp2_test.c
@@ -37,8 +37,8 @@
 #include <grpc/support/host_port.h>
 #include <grpc/support/log.h>
 #include <grpc/support/time.h>
-#include "src/core/security/credentials.h"
-#include "src/core/tsi/fake_transport_security.h"
+#include "src/core/lib/security/credentials.h"
+#include "src/core/lib/tsi/fake_transport_security.h"
 #include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
 
diff --git a/test/core/transport/chttp2/alpn_test.c b/test/core/transport/chttp2/alpn_test.c
index 9a7d5ef..a3c8a9a 100644
--- a/test/core/transport/chttp2/alpn_test.c
+++ b/test/core/transport/chttp2/alpn_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/transport/chttp2/alpn.h"
+#include "src/core/lib/transport/chttp2/alpn.h"
 
 #include <grpc/support/log.h>
 #include "test/core/util/test_config.h"
diff --git a/test/core/transport/chttp2/bin_encoder_test.c b/test/core/transport/chttp2/bin_encoder_test.c
index d183807..fd798d8 100644
--- a/test/core/transport/chttp2/bin_encoder_test.c
+++ b/test/core/transport/chttp2/bin_encoder_test.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/transport/chttp2/bin_encoder.h"
+#include "src/core/lib/transport/chttp2/bin_encoder.h"
 
 #include <string.h>
 
@@ -39,9 +39,9 @@
  * TODO(murgatroid99): Remove this
  */
 #include <grpc/grpc.h>
-#include "src/core/support/string.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
+#include "src/core/lib/support/string.h"
 
 static int all_ok = 1;
 
diff --git a/test/core/transport/chttp2/hpack_encoder_test.c b/test/core/transport/chttp2/hpack_encoder_test.c
index 4a9d143..b23e999 100644
--- a/test/core/transport/chttp2/hpack_encoder_test.c
+++ b/test/core/transport/chttp2/hpack_encoder_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,16 +31,16 @@
  *
  */
 
-#include "src/core/transport/chttp2/hpack_encoder.h"
+#include "src/core/lib/transport/chttp2/hpack_encoder.h"
 
 #include <stdio.h>
 
-#include "src/core/support/string.h"
-#include "src/core/transport/chttp2/hpack_parser.h"
-#include "src/core/transport/metadata.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/transport/chttp2/hpack_parser.h"
+#include "src/core/lib/transport/metadata.h"
 #include "test/core/util/parse_hexstring.h"
 #include "test/core/util/slice_splitter.h"
 #include "test/core/util/test_config.h"
diff --git a/test/core/transport/chttp2/hpack_parser_test.c b/test/core/transport/chttp2/hpack_parser_test.c
index 4456e19..e716d38 100644
--- a/test/core/transport/chttp2/hpack_parser_test.c
+++ b/test/core/transport/chttp2/hpack_parser_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/transport/chttp2/hpack_parser.h"
+#include "src/core/lib/transport/chttp2/hpack_parser.h"
 
 #include <stdarg.h>
 
diff --git a/test/core/transport/chttp2/hpack_table_test.c b/test/core/transport/chttp2/hpack_table_test.c
index 3c5f2e4..fbacdc3 100644
--- a/test/core/transport/chttp2/hpack_table_test.c
+++ b/test/core/transport/chttp2/hpack_table_test.c
@@ -31,17 +31,17 @@
  *
  */
 
-#include "src/core/transport/chttp2/hpack_table.h"
+#include "src/core/lib/transport/chttp2/hpack_table.h"
 
-#include <string.h>
 #include <stdio.h>
+#include <string.h>
 
 #include <grpc/grpc.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/support/string.h"
+#include "src/core/lib/support/string.h"
 #include "test/core/util/test_config.h"
 
 #define LOG_TEST(x) gpr_log(GPR_INFO, "%s", x)
diff --git a/test/core/transport/chttp2/status_conversion_test.c b/test/core/transport/chttp2/status_conversion_test.c
index e2729a0..f2770e5 100644
--- a/test/core/transport/chttp2/status_conversion_test.c
+++ b/test/core/transport/chttp2/status_conversion_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/transport/chttp2/status_conversion.h"
+#include "src/core/lib/transport/chttp2/status_conversion.h"
 #include <grpc/support/log.h>
 #include "test/core/util/test_config.h"
 
diff --git a/test/core/transport/chttp2/stream_map_test.c b/test/core/transport/chttp2/stream_map_test.c
index 527d2fe..baeac17 100644
--- a/test/core/transport/chttp2/stream_map_test.c
+++ b/test/core/transport/chttp2/stream_map_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/transport/chttp2/stream_map.h"
+#include "src/core/lib/transport/chttp2/stream_map.h"
 #include <grpc/support/log.h>
 #include "test/core/util/test_config.h"
 
diff --git a/test/core/transport/chttp2/timeout_encoding_test.c b/test/core/transport/chttp2/timeout_encoding_test.c
index 483e79f..9a91a1443 100644
--- a/test/core/transport/chttp2/timeout_encoding_test.c
+++ b/test/core/transport/chttp2/timeout_encoding_test.c
@@ -31,16 +31,16 @@
  *
  */
 
-#include "src/core/transport/chttp2/timeout_encoding.h"
+#include "src/core/lib/transport/chttp2/timeout_encoding.h"
 
 #include <stdio.h>
 #include <string.h>
 
-#include "src/core/support/string.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 #include <grpc/support/useful.h>
+#include "src/core/lib/support/string.h"
 #include "test/core/util/test_config.h"
 
 #define LOG_TEST(x) gpr_log(GPR_INFO, "%s", x)
@@ -128,11 +128,10 @@
   decode_suite('H', gpr_time_from_hours);
   assert_decodes_as("1000000000S",
                     gpr_time_from_seconds(1000 * 1000 * 1000, GPR_TIMESPAN));
-  assert_decodes_as("1000000000000000000000u",
-                    gpr_inf_future(GPR_CLOCK_REALTIME));
-  assert_decodes_as("1000000001S", gpr_inf_future(GPR_CLOCK_REALTIME));
-  assert_decodes_as("2000000001S", gpr_inf_future(GPR_CLOCK_REALTIME));
-  assert_decodes_as("9999999999S", gpr_inf_future(GPR_CLOCK_REALTIME));
+  assert_decodes_as("1000000000000000000000u", gpr_inf_future(GPR_TIMESPAN));
+  assert_decodes_as("1000000001S", gpr_inf_future(GPR_TIMESPAN));
+  assert_decodes_as("2000000001S", gpr_inf_future(GPR_TIMESPAN));
+  assert_decodes_as("9999999999S", gpr_inf_future(GPR_TIMESPAN));
 }
 
 void test_decoding_fails(void) {
diff --git a/test/core/transport/chttp2/varint_test.c b/test/core/transport/chttp2/varint_test.c
index f06116a..960c953 100644
--- a/test/core/transport/chttp2/varint_test.c
+++ b/test/core/transport/chttp2/varint_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/transport/chttp2/varint.h"
+#include "src/core/lib/transport/chttp2/varint.h"
 
 #include <grpc/support/log.h>
 #include <grpc/support/slice.h>
diff --git a/test/core/transport/connectivity_state_test.c b/test/core/transport/connectivity_state_test.c
index 4b2d0aa..b310d4d 100644
--- a/test/core/transport/connectivity_state_test.c
+++ b/test/core/transport/connectivity_state_test.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/transport/connectivity_state.h"
+#include "src/core/lib/transport/connectivity_state.h"
 
 #include <string.h>
 
diff --git a/test/core/transport/metadata_test.c b/test/core/transport/metadata_test.c
index 928fba7..30e3113 100644
--- a/test/core/transport/metadata_test.c
+++ b/test/core/transport/metadata_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/transport/metadata.h"
+#include "src/core/lib/transport/metadata.h"
 
 #include <stdio.h>
 
@@ -40,8 +40,8 @@
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/support/string.h"
-#include "src/core/transport/chttp2/bin_encoder.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/transport/chttp2/bin_encoder.h"
 #include "test/core/util/test_config.h"
 
 #define LOG_TEST(x) gpr_log(GPR_INFO, "%s", x)
diff --git a/test/core/tsi/transport_security_test.c b/test/core/tsi/transport_security_test.c
index 667d3f0..49b5b8b 100644
--- a/test/core/tsi/transport_security_test.c
+++ b/test/core/tsi/transport_security_test.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/tsi/transport_security.h"
+#include "src/core/lib/tsi/transport_security.h"
 
 #include <string.h>
 
@@ -42,9 +42,9 @@
 
 #include <openssl/crypto.h>
 
-#include "src/core/support/string.h"
-#include "src/core/tsi/fake_transport_security.h"
-#include "src/core/tsi/ssl_transport_security.h"
+#include "src/core/lib/support/string.h"
+#include "src/core/lib/tsi/fake_transport_security.h"
+#include "src/core/lib/tsi/ssl_transport_security.h"
 #include "test/core/util/test_config.h"
 
 typedef struct {
diff --git a/test/core/util/port_posix.c b/test/core/util/port_posix.c
index 5c0b271..fea7e52 100644
--- a/test/core/util/port_posix.c
+++ b/test/core/util/port_posix.c
@@ -49,7 +49,8 @@
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/support/env.h"
+#include "src/core/lib/http/httpcli.h"
+#include "src/core/lib/support/env.h"
 #include "test/core/util/port_server_client.h"
 
 #define NUM_RANDOM_PORTS_TO_PICK 100
diff --git a/test/core/util/port_server_client.c b/test/core/util/port_server_client.c
index 653ecb2..ea01b46 100644
--- a/test/core/util/port_server_client.c
+++ b/test/core/util/port_server_client.c
@@ -47,7 +47,7 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/time.h>
 
-#include "src/core/httpcli/httpcli.h"
+#include "src/core/lib/http/httpcli.h"
 
 typedef struct freereq {
   gpr_mu *mu;
@@ -91,7 +91,7 @@
 
   req.host = server;
   gpr_asprintf(&path, "/drop/%d", port);
-  req.path = path;
+  req.http.path = path;
 
   grpc_httpcli_context_init(&context);
   grpc_httpcli_get(&exec_ctx, &context, pr.pollset, &req,
@@ -150,7 +150,7 @@
             GPR_TIMESPAN)));
     pr->retries++;
     req.host = pr->server;
-    req.path = "/get";
+    req.http.path = "/get";
     grpc_httpcli_get(exec_ctx, pr->ctx, pr->pollset, &req,
                      GRPC_TIMEOUT_SECONDS_TO_DEADLINE(10), got_port_from_server,
                      pr);
@@ -189,7 +189,7 @@
   pr.ctx = &context;
 
   req.host = server;
-  req.path = "/get";
+  req.http.path = "/get";
 
   grpc_httpcli_context_init(&context);
   grpc_httpcli_get(&exec_ctx, &context, pr.pollset, &req,
diff --git a/test/core/util/port_windows.c b/test/core/util/port_windows.c
index a810683..081782d 100644
--- a/test/core/util/port_windows.c
+++ b/test/core/util/port_windows.c
@@ -37,17 +37,18 @@
 
 #include "test/core/util/port.h"
 
+#include <errno.h>
 #include <process.h>
 #include <stdio.h>
-#include <errno.h>
 #include <string.h>
 
 #include <grpc/grpc.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 
-#include "src/core/support/env.h"
-#include "src/core/iomgr/sockaddr_utils.h"
+#include "src/core/lib/http/httpcli.h"
+#include "src/core/lib/iomgr/sockaddr_utils.h"
+#include "src/core/lib/support/env.h"
 #include "test/core/util/port_server_client.h"
 
 #define NUM_RANDOM_PORTS_TO_PICK 100
diff --git a/test/core/util/reconnect_server.c b/test/core/util/reconnect_server.c
index 57225aa..0e7a486 100644
--- a/test/core/util/reconnect_server.c
+++ b/test/core/util/reconnect_server.c
@@ -40,9 +40,9 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/time.h>
 #include <string.h>
-#include "src/core/iomgr/endpoint.h"
-#include "src/core/iomgr/sockaddr.h"
-#include "src/core/iomgr/tcp_server.h"
+#include "src/core/lib/iomgr/endpoint.h"
+#include "src/core/lib/iomgr/sockaddr.h"
+#include "src/core/lib/iomgr/tcp_server.h"
 #include "test/core/util/port.h"
 #include "test/core/util/test_tcp_server.h"
 
diff --git a/test/core/util/test_config.c b/test/core/util/test_config.c
index bf672e8..7ffaa6f 100644
--- a/test/core/util/test_config.c
+++ b/test/core/util/test_config.c
@@ -39,7 +39,7 @@
 #include <stdbool.h>
 #include <stdio.h>
 #include <stdlib.h>
-#include "src/core/support/string.h"
+#include "src/core/lib/support/string.h"
 
 double g_fixture_slowdown_factor = 1.0;
 
@@ -99,6 +99,7 @@
     SymFromAddrW(process, (DWORD64)(callers_stack[i]), 0, symbol);
     fwprintf(stderr, L"*** %d: %016I64X %ls - %016I64X\n", i,
              (DWORD64)callers_stack[i], symbol->Name, (DWORD64)symbol->Address);
+    fflush(stderr);
   }
 
   free(symbol);
@@ -154,6 +155,7 @@
     fwprintf(
         stderr, L"*** %016I64X %ls - %016I64X\n", (DWORD64)(s.AddrPC.Offset),
         has_symbol ? symbol->Name : L"<<no symbol>>", (DWORD64)symbol->Address);
+    fflush(stderr);
   }
 
   free(symbol);
diff --git a/test/core/util/test_tcp_server.c b/test/core/util/test_tcp_server.c
index ab37944..7703ec0 100644
--- a/test/core/util/test_tcp_server.c
+++ b/test/core/util/test_tcp_server.c
@@ -40,9 +40,9 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/time.h>
 #include <string.h>
-#include "src/core/iomgr/endpoint.h"
-#include "src/core/iomgr/sockaddr.h"
-#include "src/core/iomgr/tcp_server.h"
+#include "src/core/lib/iomgr/endpoint.h"
+#include "src/core/lib/iomgr/sockaddr.h"
+#include "src/core/lib/iomgr/tcp_server.h"
 #include "test/core/util/port.h"
 
 static void on_server_destroyed(grpc_exec_ctx *exec_ctx, void *data,
diff --git a/test/core/util/test_tcp_server.h b/test/core/util/test_tcp_server.h
index 15fcb4f..7d1025f 100644
--- a/test/core/util/test_tcp_server.h
+++ b/test/core/util/test_tcp_server.h
@@ -35,7 +35,7 @@
 #define GRPC_TEST_CORE_UTIL_TEST_TCP_SERVER_H
 
 #include <grpc/support/sync.h>
-#include "src/core/iomgr/tcp_server.h"
+#include "src/core/lib/iomgr/tcp_server.h"
 
 typedef struct test_tcp_server {
   grpc_tcp_server *tcp_server;
diff --git a/test/cpp/common/auth_property_iterator_test.cc b/test/cpp/common/auth_property_iterator_test.cc
index a629ff5..4b5cf02 100644
--- a/test/cpp/common/auth_property_iterator_test.cc
+++ b/test/cpp/common/auth_property_iterator_test.cc
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,14 +31,14 @@
  *
  */
 
-#include <grpc/grpc_security.h>
 #include <grpc++/security/auth_context.h>
+#include <grpc/grpc_security.h>
 #include <gtest/gtest.h>
 #include "src/cpp/common/secure_auth_context.h"
 #include "test/cpp/util/string_ref_helper.h"
 
 extern "C" {
-#include "src/core/security/security_context.h"
+#include "src/core/lib/security/security_context.h"
 }
 
 using ::grpc::testing::ToString;
diff --git a/test/cpp/common/secure_auth_context_test.cc b/test/cpp/common/secure_auth_context_test.cc
index 11de646..c421910 100644
--- a/test/cpp/common/secure_auth_context_test.cc
+++ b/test/cpp/common/secure_auth_context_test.cc
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,14 +31,14 @@
  *
  */
 
-#include <grpc/grpc_security.h>
-#include <grpc++/security/auth_context.h>
-#include <gtest/gtest.h>
 #include "src/cpp/common/secure_auth_context.h"
+#include <grpc++/security/auth_context.h>
+#include <grpc/grpc_security.h>
+#include <gtest/gtest.h>
 #include "test/cpp/util/string_ref_helper.h"
 
 extern "C" {
-#include "src/core/security/security_context.h"
+#include "src/core/lib/security/security_context.h"
 }
 
 using grpc::testing::ToString;
diff --git a/test/cpp/end2end/end2end_test.cc b/test/cpp/end2end/end2end_test.cc
index 4759818..ff388c0 100644
--- a/test/cpp/end2end/end2end_test.cc
+++ b/test/cpp/end2end/end2end_test.cc
@@ -48,7 +48,7 @@
 #include <grpc/support/time.h>
 #include <gtest/gtest.h>
 
-#include "src/core/security/credentials.h"
+#include "src/core/lib/security/credentials.h"
 #include "src/proto/grpc/testing/duplicate/echo_duplicate.grpc.pb.h"
 #include "src/proto/grpc/testing/echo.grpc.pb.h"
 #include "test/core/util/port.h"
diff --git a/test/cpp/end2end/generic_end2end_test.cc b/test/cpp/end2end/generic_end2end_test.cc
index 4e6d50e..8dad1c2 100644
--- a/test/cpp/end2end/generic_end2end_test.cc
+++ b/test/cpp/end2end/generic_end2end_test.cc
@@ -135,6 +135,8 @@
       std::unique_ptr<ByteBuffer> send_buffer =
           SerializeToByteBuffer(&send_request);
       call->Write(*send_buffer, tag(2));
+      // Send ByteBuffer can be destroyed after calling Write.
+      send_buffer.reset();
       client_ok(2);
       call->WritesDone(tag(3));
       client_ok(3);
@@ -154,6 +156,7 @@
       send_response.set_message(recv_request.message());
       send_buffer = SerializeToByteBuffer(&send_response);
       stream.Write(*send_buffer, tag(6));
+      send_buffer.reset();
       server_ok(6);
 
       stream.Finish(Status::OK, tag(7));
@@ -223,6 +226,7 @@
   std::unique_ptr<ByteBuffer> send_buffer =
       SerializeToByteBuffer(&send_request);
   cli_stream->Write(*send_buffer, tag(3));
+  send_buffer.reset();
   client_ok(3);
 
   ByteBuffer recv_buffer;
@@ -234,6 +238,7 @@
   send_response.set_message(recv_request.message());
   send_buffer = SerializeToByteBuffer(&send_response);
   srv_stream.Write(*send_buffer, tag(5));
+  send_buffer.reset();
   server_ok(5);
 
   cli_stream->Read(&recv_buffer, tag(6));
diff --git a/test/cpp/end2end/hybrid_end2end_test.cc b/test/cpp/end2end/hybrid_end2end_test.cc
index c72e206..02043a8 100644
--- a/test/cpp/end2end/hybrid_end2end_test.cc
+++ b/test/cpp/end2end/hybrid_end2end_test.cc
@@ -356,7 +356,8 @@
 
 TEST_F(HybridEnd2endTest, AsyncEchoRequestStream) {
   EchoTestService::WithAsyncMethod_RequestStream<
-      EchoTestService::WithAsyncMethod_Echo<TestServiceImpl> > service;
+      EchoTestService::WithAsyncMethod_Echo<TestServiceImpl> >
+      service;
   SetUpServer(&service, nullptr, nullptr);
   ResetStub();
   std::thread echo_handler_thread(
@@ -436,7 +437,8 @@
 
 TEST_F(HybridEnd2endTest, GenericEchoAsyncRequestStream) {
   EchoTestService::WithAsyncMethod_RequestStream<
-      EchoTestService::WithGenericMethod_Echo<TestServiceImpl> > service;
+      EchoTestService::WithGenericMethod_Echo<TestServiceImpl> >
+      service;
   AsyncGenericService generic_service;
   SetUpServer(&service, nullptr, &generic_service);
   ResetStub();
@@ -453,7 +455,8 @@
 // Add a second service with one sync method.
 TEST_F(HybridEnd2endTest, GenericEchoAsyncRequestStream_SyncDupService) {
   EchoTestService::WithAsyncMethod_RequestStream<
-      EchoTestService::WithGenericMethod_Echo<TestServiceImpl> > service;
+      EchoTestService::WithGenericMethod_Echo<TestServiceImpl> >
+      service;
   AsyncGenericService generic_service;
   TestServiceImplDupPkg dup_service;
   SetUpServer(&service, &dup_service, &generic_service);
@@ -472,7 +475,8 @@
 // Add a second service with one async method.
 TEST_F(HybridEnd2endTest, GenericEchoAsyncRequestStream_AsyncDupService) {
   EchoTestService::WithAsyncMethod_RequestStream<
-      EchoTestService::WithGenericMethod_Echo<TestServiceImpl> > service;
+      EchoTestService::WithGenericMethod_Echo<TestServiceImpl> >
+      service;
   AsyncGenericService generic_service;
   duplicate::EchoTestService::AsyncService dup_service;
   SetUpServer(&service, &dup_service, &generic_service);
diff --git a/test/cpp/end2end/shutdown_test.cc b/test/cpp/end2end/shutdown_test.cc
index dbbda3a..62bb6b1 100644
--- a/test/cpp/end2end/shutdown_test.cc
+++ b/test/cpp/end2end/shutdown_test.cc
@@ -43,7 +43,7 @@
 #include <grpc/support/sync.h>
 #include <gtest/gtest.h>
 
-#include "src/core/support/env.h"
+#include "src/core/lib/support/env.h"
 #include "src/proto/grpc/testing/echo.grpc.pb.h"
 #include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
diff --git a/test/cpp/end2end/test_service_impl.cc b/test/cpp/end2end/test_service_impl.cc
index fe29c4a..2f5dd6d 100644
--- a/test/cpp/end2end/test_service_impl.cc
+++ b/test/cpp/end2end/test_service_impl.cc
@@ -129,10 +129,9 @@
   if (request->has_param() && request->param().echo_metadata()) {
     const std::multimap<grpc::string_ref, grpc::string_ref>& client_metadata =
         context->client_metadata();
-    for (
-        std::multimap<grpc::string_ref, grpc::string_ref>::const_iterator iter =
-            client_metadata.begin();
-        iter != client_metadata.end(); ++iter) {
+    for (std::multimap<grpc::string_ref, grpc::string_ref>::const_iterator
+             iter = client_metadata.begin();
+         iter != client_metadata.end(); ++iter) {
       context->AddTrailingMetadata(ToString(iter->first),
                                    ToString(iter->second));
     }
diff --git a/test/cpp/end2end/thread_stress_test.cc b/test/cpp/end2end/thread_stress_test.cc
index e246c0b..8760b8d 100644
--- a/test/cpp/end2end/thread_stress_test.cc
+++ b/test/cpp/end2end/thread_stress_test.cc
@@ -45,7 +45,7 @@
 #include <grpc/support/time.h>
 #include <gtest/gtest.h>
 
-#include "src/core/surface/api_trace.h"
+#include "src/core/lib/surface/api_trace.h"
 #include "src/proto/grpc/testing/duplicate/echo_duplicate.grpc.pb.h"
 #include "src/proto/grpc/testing/echo.grpc.pb.h"
 #include "test/core/util/port.h"
@@ -318,7 +318,7 @@
 
 TEST_F(AsyncClientEnd2endTest, ThreadStress) {
   common_.ResetStub();
-  std::vector<std::thread*> send_threads, completion_threads;
+  std::vector<std::thread *> send_threads, completion_threads;
   for (int i = 0; i < kNumAsyncReceiveThreads; ++i) {
     completion_threads.push_back(new std::thread(
         &AsyncClientEnd2endTest_ThreadStress_Test::AsyncCompleteRpc, this));
diff --git a/test/cpp/end2end/zookeeper_test.cc b/test/cpp/end2end/zookeeper_test.cc
index bbf1b0e..f1b6ac2 100644
--- a/test/cpp/end2end/zookeeper_test.cc
+++ b/test/cpp/end2end/zookeeper_test.cc
@@ -42,7 +42,7 @@
 #include <gtest/gtest.h>
 #include <zookeeper/zookeeper.h>
 
-#include "src/core/support/env.h"
+#include "src/core/lib/support/env.h"
 #include "src/proto/grpc/testing/echo.grpc.pb.h"
 #include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
diff --git a/test/cpp/grpclb/grpclb_api_test.cc b/test/cpp/grpclb/grpclb_api_test.cc
index bd4885f..bc8219c 100644
--- a/test/cpp/grpclb/grpclb_api_test.cc
+++ b/test/cpp/grpclb/grpclb_api_test.cc
@@ -34,7 +34,7 @@
 #include <gtest/gtest.h>
 #include <string>
 
-#include "src/core/client_config/lb_policies/load_balancer_api.h"
+#include "src/core/lib/client_config/lb_policies/load_balancer_api.h"
 #include "src/proto/grpc/lb/v0/load_balancer.pb.h"  // C++ version
 
 namespace grpc {
diff --git a/test/cpp/interop/client.cc b/test/cpp/interop/client.cc
index 788adef..8b237fe 100644
--- a/test/cpp/interop/client.cc
+++ b/test/cpp/interop/client.cc
@@ -35,11 +35,11 @@
 
 #include <unistd.h>
 
-#include <grpc/grpc.h>
-#include <grpc/support/log.h>
 #include <gflags/gflags.h>
 #include <grpc++/channel.h>
 #include <grpc++/client_context.h>
+#include <grpc/grpc.h>
+#include <grpc/support/log.h>
 
 #include "test/cpp/interop/client_helper.h"
 #include "test/cpp/interop/interop_client.h"
diff --git a/test/cpp/interop/client_helper.cc b/test/cpp/interop/client_helper.cc
index 5caf0f2..029b967 100644
--- a/test/cpp/interop/client_helper.cc
+++ b/test/cpp/interop/client_helper.cc
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -39,13 +39,13 @@
 #include <memory>
 #include <sstream>
 
-#include <grpc/grpc.h>
-#include <grpc/support/alloc.h>
-#include <grpc/support/log.h>
 #include <gflags/gflags.h>
 #include <grpc++/channel.h>
 #include <grpc++/create_channel.h>
 #include <grpc++/security/credentials.h>
+#include <grpc/grpc.h>
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
 
 #include "src/cpp/client/secure_credentials.h"
 #include "test/core/security/oauth2_utils.h"
diff --git a/test/cpp/interop/client_helper.h b/test/cpp/interop/client_helper.h
index 0f77474..0790464 100644
--- a/test/cpp/interop/client_helper.h
+++ b/test/cpp/interop/client_helper.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -38,7 +38,7 @@
 
 #include <grpc++/channel.h>
 
-#include "src/core/surface/call_test_only.h"
+#include "src/core/lib/surface/call_test_only.h"
 
 namespace grpc {
 namespace testing {
diff --git a/test/cpp/interop/interop_client.cc b/test/cpp/interop/interop_client.cc
index 46f6fda..2fcd9f3 100644
--- a/test/cpp/interop/interop_client.cc
+++ b/test/cpp/interop/interop_client.cc
@@ -46,10 +46,10 @@
 #include <grpc/support/string_util.h>
 #include <grpc/support/useful.h>
 
-#include "src/core/transport/byte_stream.h"
+#include "src/core/lib/transport/byte_stream.h"
 #include "src/proto/grpc/testing/empty.grpc.pb.h"
-#include "src/proto/grpc/testing/test.grpc.pb.h"
 #include "src/proto/grpc/testing/messages.grpc.pb.h"
+#include "src/proto/grpc/testing/test.grpc.pb.h"
 #include "test/cpp/interop/client_helper.h"
 
 namespace grpc {
diff --git a/test/cpp/interop/interop_client.h b/test/cpp/interop/interop_client.h
index 3f57f3c..e6706b5 100644
--- a/test/cpp/interop/interop_client.h
+++ b/test/cpp/interop/interop_client.h
@@ -36,8 +36,8 @@
 
 #include <memory>
 
-#include <grpc/grpc.h>
 #include <grpc++/channel.h>
+#include <grpc/grpc.h>
 #include "src/proto/grpc/testing/messages.grpc.pb.h"
 #include "src/proto/grpc/testing/test.grpc.pb.h"
 
diff --git a/test/cpp/interop/interop_test.cc b/test/cpp/interop/interop_test.cc
index faf6698..f1fb3c9 100644
--- a/test/cpp/interop/interop_test.cc
+++ b/test/cpp/interop/interop_test.cc
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,14 +35,14 @@
 #define _POSIX_SOURCE
 #endif
 
-#include <unistd.h>
 #include <assert.h>
-#include <stdio.h>
-#include <string.h>
 #include <signal.h>
+#include <stdio.h>
 #include <stdlib.h>
+#include <string.h>
 #include <sys/types.h>
 #include <sys/wait.h>
+#include <unistd.h>
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/host_port.h>
@@ -51,8 +51,8 @@
 #include "test/core/util/port.h"
 
 extern "C" {
-#include "src/core/iomgr/socket_utils_posix.h"
-#include "src/core/support/string.h"
+#include "src/core/lib/iomgr/socket_utils_posix.h"
+#include "src/core/lib/support/string.h"
 }
 
 int test_client(const char* root, const char* host, int port) {
diff --git a/test/cpp/interop/reconnect_interop_client.cc b/test/cpp/interop/reconnect_interop_client.cc
index 79a60cc..c668eda 100644
--- a/test/cpp/interop/reconnect_interop_client.cc
+++ b/test/cpp/interop/reconnect_interop_client.cc
@@ -34,16 +34,16 @@
 #include <memory>
 #include <sstream>
 
-#include <grpc/grpc.h>
-#include <grpc/support/log.h>
 #include <gflags/gflags.h>
 #include <grpc++/channel.h>
 #include <grpc++/client_context.h>
-#include "test/cpp/util/create_test_channel.h"
-#include "test/cpp/util/test_config.h"
-#include "src/proto/grpc/testing/test.grpc.pb.h"
+#include <grpc/grpc.h>
+#include <grpc/support/log.h>
 #include "src/proto/grpc/testing/empty.grpc.pb.h"
 #include "src/proto/grpc/testing/messages.grpc.pb.h"
+#include "src/proto/grpc/testing/test.grpc.pb.h"
+#include "test/cpp/util/create_test_channel.h"
+#include "test/cpp/util/test_config.h"
 
 DEFINE_int32(server_control_port, 0, "Server port for control rpcs.");
 DEFINE_int32(server_retry_port, 0, "Server port for testing reconnection.");
diff --git a/test/cpp/interop/server_helper.cc b/test/cpp/interop/server_helper.cc
index 9a28409..97c39c4 100644
--- a/test/cpp/interop/server_helper.cc
+++ b/test/cpp/interop/server_helper.cc
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -38,7 +38,7 @@
 #include <gflags/gflags.h>
 #include <grpc++/security/server_credentials.h>
 
-#include "src/core/surface/call_test_only.h"
+#include "src/core/lib/surface/call_test_only.h"
 #include "test/core/end2end/data/ssl_test_data.h"
 
 DECLARE_bool(use_tls);
diff --git a/test/cpp/interop/server_helper.h b/test/cpp/interop/server_helper.h
index 57337e5..38c2fba 100644
--- a/test/cpp/interop/server_helper.h
+++ b/test/cpp/interop/server_helper.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -36,9 +36,9 @@
 
 #include <memory>
 
-#include <grpc/compression.h>
-#include <grpc++/server_context.h>
 #include <grpc++/security/server_credentials.h>
+#include <grpc++/server_context.h>
+#include <grpc/compression.h>
 
 namespace grpc {
 namespace testing {
diff --git a/test/cpp/interop/server_main.cc b/test/cpp/interop/server_main.cc
index 18ac35d..8a71870 100644
--- a/test/cpp/interop/server_main.cc
+++ b/test/cpp/interop/server_main.cc
@@ -40,19 +40,19 @@
 #include <thread>
 
 #include <gflags/gflags.h>
-#include <grpc/grpc.h>
-#include <grpc/support/log.h>
-#include <grpc/support/useful.h>
+#include <grpc++/security/server_credentials.h>
 #include <grpc++/server.h>
 #include <grpc++/server_builder.h>
 #include <grpc++/server_context.h>
-#include <grpc++/security/server_credentials.h>
+#include <grpc/grpc.h>
+#include <grpc/support/log.h>
+#include <grpc/support/useful.h>
 
-#include "test/cpp/interop/server_helper.h"
-#include "test/cpp/util/test_config.h"
-#include "src/proto/grpc/testing/test.grpc.pb.h"
 #include "src/proto/grpc/testing/empty.grpc.pb.h"
 #include "src/proto/grpc/testing/messages.grpc.pb.h"
+#include "src/proto/grpc/testing/test.grpc.pb.h"
+#include "test/cpp/interop/server_helper.h"
+#include "test/cpp/util/test_config.h"
 
 DEFINE_bool(use_tls, false, "Whether to use tls.");
 DEFINE_int32(port, 0, "Server port.");
diff --git a/test/cpp/interop/stress_test.cc b/test/cpp/interop/stress_test.cc
index 702354d..162f7b3 100644
--- a/test/cpp/interop/stress_test.cc
+++ b/test/cpp/interop/stress_test.cc
@@ -43,12 +43,12 @@
 #include <grpc++/impl/thd.h>
 #include <grpc/support/time.h>
 
+#include "src/proto/grpc/testing/metrics.grpc.pb.h"
+#include "src/proto/grpc/testing/metrics.pb.h"
 #include "test/cpp/interop/interop_client.h"
 #include "test/cpp/interop/stress_interop_client.h"
 #include "test/cpp/util/metrics_server.h"
 #include "test/cpp/util/test_config.h"
-#include "src/proto/grpc/testing/metrics.grpc.pb.h"
-#include "src/proto/grpc/testing/metrics.pb.h"
 
 extern "C" {
 extern void gpr_default_log(gpr_log_func_args* args);
diff --git a/test/cpp/qps/client_async.cc b/test/cpp/qps/client_async.cc
index 9e9da99..dcdb665 100644
--- a/test/cpp/qps/client_async.cc
+++ b/test/cpp/qps/client_async.cc
@@ -141,7 +141,8 @@
   std::function<gpr_timespec()> next_issue_;
   std::function<std::unique_ptr<grpc::ClientAsyncResponseReader<ResponseType>>(
       BenchmarkService::Stub*, grpc::ClientContext*, const RequestType&,
-      CompletionQueue*)> start_req_;
+      CompletionQueue*)>
+      start_req_;
   grpc::Status status_;
   double start_;
   std::unique_ptr<grpc::ClientAsyncResponseReader<ResponseType>>
@@ -359,10 +360,10 @@
   State next_state_;
   std::function<void(grpc::Status, ResponseType*)> callback_;
   std::function<gpr_timespec()> next_issue_;
-  std::function<
-      std::unique_ptr<grpc::ClientAsyncReaderWriter<RequestType, ResponseType>>(
-          BenchmarkService::Stub*, grpc::ClientContext*, CompletionQueue*,
-          void*)> start_req_;
+  std::function<std::unique_ptr<
+      grpc::ClientAsyncReaderWriter<RequestType, ResponseType>>(
+      BenchmarkService::Stub*, grpc::ClientContext*, CompletionQueue*, void*)>
+      start_req_;
   grpc::Status status_;
   double start_;
   std::unique_ptr<grpc::ClientAsyncReaderWriter<RequestType, ResponseType>>
@@ -491,7 +492,8 @@
   std::function<gpr_timespec()> next_issue_;
   std::function<std::unique_ptr<grpc::GenericClientAsyncReaderWriter>(
       grpc::GenericStub*, grpc::ClientContext*, const grpc::string&,
-      CompletionQueue*, void*)> start_req_;
+      CompletionQueue*, void*)>
+      start_req_;
   grpc::Status status_;
   double start_;
   std::unique_ptr<grpc::GenericClientAsyncReaderWriter> stream_;
diff --git a/test/cpp/qps/client_sync.cc b/test/cpp/qps/client_sync.cc
index 4284e07..a1489d8 100644
--- a/test/cpp/qps/client_sync.cc
+++ b/test/cpp/qps/client_sync.cc
@@ -53,7 +53,7 @@
 #include <grpc/support/time.h>
 #include <gtest/gtest.h>
 
-#include "src/core/profiling/timers.h"
+#include "src/core/lib/profiling/timers.h"
 #include "src/proto/grpc/testing/services.grpc.pb.h"
 #include "test/cpp/qps/client.h"
 #include "test/cpp/qps/histogram.h"
diff --git a/test/cpp/qps/driver.cc b/test/cpp/qps/driver.cc
index 6c05799..6cca7de 100644
--- a/test/cpp/qps/driver.cc
+++ b/test/cpp/qps/driver.cc
@@ -45,7 +45,7 @@
 #include <grpc/support/log.h>
 #include <gtest/gtest.h>
 
-#include "src/core/support/env.h"
+#include "src/core/lib/support/env.h"
 #include "src/proto/grpc/testing/services.grpc.pb.h"
 #include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
diff --git a/test/cpp/qps/driver.h b/test/cpp/qps/driver.h
index 3af61f7..1e2e280 100644
--- a/test/cpp/qps/driver.h
+++ b/test/cpp/qps/driver.h
@@ -36,8 +36,8 @@
 
 #include <memory>
 
-#include "test/cpp/qps/histogram.h"
 #include "src/proto/grpc/testing/control.grpc.pb.h"
+#include "test/cpp/qps/histogram.h"
 
 namespace grpc {
 namespace testing {
diff --git a/test/cpp/qps/generic_async_streaming_ping_pong_test.cc b/test/cpp/qps/generic_async_streaming_ping_pong_test.cc
index 77ed11f..fc06cdd 100644
--- a/test/cpp/qps/generic_async_streaming_ping_pong_test.cc
+++ b/test/cpp/qps/generic_async_streaming_ping_pong_test.cc
@@ -62,6 +62,7 @@
   ServerConfig server_config;
   server_config.set_server_type(ASYNC_GENERIC_SERVER);
   server_config.set_async_server_threads(1);
+  *server_config.mutable_payload_config() = client_config.payload_config();
 
   const auto result =
       RunScenario(client_config, 1, server_config, 1, WARMUP, BENCHMARK, -2);
diff --git a/test/cpp/qps/limit_cores.cc b/test/cpp/qps/limit_cores.cc
index fad9a32..59ed369 100644
--- a/test/cpp/qps/limit_cores.cc
+++ b/test/cpp/qps/limit_cores.cc
@@ -37,14 +37,15 @@
 #include <grpc/support/log.h>
 #include <grpc/support/port_platform.h>
 
-namespace grpc {
-namespace testing {
-
 #ifdef GPR_CPU_LINUX
 #ifndef _GNU_SOURCE
 #define _GNU_SOURCE
 #endif
 #include <sched.h>
+
+namespace grpc {
+namespace testing {
+
 int LimitCores(const int* cores, int cores_size) {
   const int num_cores = gpr_cpu_num_cores();
   int cores_set = 0;
@@ -71,9 +72,16 @@
   CPU_FREE(cpup);
   return cores_set;
 }
-#else
-// LimitCores is not currently supported for non-Linux platforms
-int LimitCores(const int*, int) { return gpr_cpu_num_cores(); }
-#endif
+
 }  // namespace testing
 }  // namespace grpc
+#else
+namespace grpc {
+namespace testing {
+
+// LimitCores is not currently supported for non-Linux platforms
+int LimitCores(const int*, int) { return gpr_cpu_num_cores(); }
+
+}  // namespace testing
+}  // namespace grpc
+#endif
diff --git a/test/cpp/qps/perf_db_client.h b/test/cpp/qps/perf_db_client.h
index ece020a..668083b 100644
--- a/test/cpp/qps/perf_db_client.h
+++ b/test/cpp/qps/perf_db_client.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,17 +31,17 @@
  *
  */
 
+#include <cfloat>
 #include <iostream>
 #include <memory>
 #include <string>
-#include <cfloat>
 
-#include <grpc/grpc.h>
-#include <grpc++/support/channel_arguments.h>
 #include <grpc++/channel.h>
 #include <grpc++/client_context.h>
 #include <grpc++/create_channel.h>
 #include <grpc++/security/credentials.h>
+#include <grpc++/support/channel_arguments.h>
+#include <grpc/grpc.h>
 #include "src/proto/grpc/testing/perf_db.grpc.pb.h"
 
 namespace grpc {
diff --git a/test/cpp/qps/qps_driver.cc b/test/cpp/qps/qps_driver.cc
index 69fb4d7..f9bd01b 100644
--- a/test/cpp/qps/qps_driver.cc
+++ b/test/cpp/qps/qps_driver.cc
@@ -171,6 +171,10 @@
     server_config.set_core_limit(FLAGS_server_core_limit);
   }
 
+  if (FLAGS_bbuf_resp_size >= 0) {
+    *server_config.mutable_payload_config() = client_config.payload_config();
+  }
+
   if (FLAGS_secure_test) {
     // Set up security params
     SecurityParams security;
diff --git a/test/cpp/qps/qps_test_with_poll.cc b/test/cpp/qps/qps_test_with_poll.cc
index 8340a63..647aaac 100644
--- a/test/cpp/qps/qps_test_with_poll.cc
+++ b/test/cpp/qps/qps_test_with_poll.cc
@@ -40,7 +40,7 @@
 #include "test/cpp/util/benchmark_config.h"
 
 extern "C" {
-#include "src/core/iomgr/pollset_posix.h"
+#include "src/core/lib/iomgr/pollset_posix.h"
 }
 
 namespace grpc {
diff --git a/test/cpp/qps/server_async.cc b/test/cpp/qps/server_async.cc
index d7b3f76..1bfb070 100644
--- a/test/cpp/qps/server_async.cc
+++ b/test/cpp/qps/server_async.cc
@@ -387,12 +387,14 @@
 }
 
 std::unique_ptr<Server> CreateAsyncServer(const ServerConfig &config) {
-  return std::unique_ptr<Server>(new AsyncQpsServerTest<
-      SimpleRequest, SimpleResponse, BenchmarkService::AsyncService,
-      grpc::ServerContext>(
-      config, RegisterBenchmarkService,
-      &BenchmarkService::AsyncService::RequestUnaryCall,
-      &BenchmarkService::AsyncService::RequestStreamingCall, ProcessSimpleRPC));
+  return std::unique_ptr<Server>(
+      new AsyncQpsServerTest<SimpleRequest, SimpleResponse,
+                             BenchmarkService::AsyncService,
+                             grpc::ServerContext>(
+          config, RegisterBenchmarkService,
+          &BenchmarkService::AsyncService::RequestUnaryCall,
+          &BenchmarkService::AsyncService::RequestStreamingCall,
+          ProcessSimpleRPC));
 }
 std::unique_ptr<Server> CreateAsyncGenericServer(const ServerConfig &config) {
   return std::unique_ptr<Server>(
diff --git a/test/cpp/util/benchmark_config.cc b/test/cpp/util/benchmark_config.cc
index 3c38221..5c3a4cf 100644
--- a/test/cpp/util/benchmark_config.cc
+++ b/test/cpp/util/benchmark_config.cc
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,8 +31,8 @@
  *
  */
 
-#include <gflags/gflags.h>
 #include "test/cpp/util/benchmark_config.h"
+#include <gflags/gflags.h>
 
 DEFINE_bool(enable_log_reporter, true,
             "Enable reporting of benchmark results through GprLog");
diff --git a/test/cpp/util/byte_buffer_test.cc b/test/cpp/util/byte_buffer_test.cc
index f36c32c..bc172e9 100644
--- a/test/cpp/util/byte_buffer_test.cc
+++ b/test/cpp/util/byte_buffer_test.cc
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -36,8 +36,8 @@
 #include <cstring>
 #include <vector>
 
-#include <grpc/support/slice.h>
 #include <grpc++/support/slice.h>
+#include <grpc/support/slice.h>
 #include <gtest/gtest.h>
 
 namespace grpc {
@@ -105,6 +105,24 @@
   EXPECT_TRUE(SliceEqual(slices[1], world));
 }
 
+TEST_F(ByteBufferTest, SerializationMakesCopy) {
+  gpr_slice hello = gpr_slice_from_copied_string(kContent1);
+  gpr_slice world = gpr_slice_from_copied_string(kContent2);
+  std::vector<Slice> slices;
+  slices.push_back(Slice(hello, Slice::STEAL_REF));
+  slices.push_back(Slice(world, Slice::STEAL_REF));
+  grpc_byte_buffer* send_buffer = nullptr;
+  bool owned = false;
+  ByteBuffer buffer(&slices[0], 2);
+  slices.clear();
+  auto status = SerializationTraits<ByteBuffer, void>::Serialize(
+      buffer, &send_buffer, &owned);
+  EXPECT_TRUE(status.ok());
+  EXPECT_TRUE(owned);
+  EXPECT_TRUE(send_buffer != nullptr);
+  grpc_byte_buffer_destroy(send_buffer);
+}
+
 }  // namespace
 }  // namespace grpc
 
diff --git a/test/cpp/util/cli_call_test.cc b/test/cpp/util/cli_call_test.cc
index 5fdf519..474ac28 100644
--- a/test/cpp/util/cli_call_test.cc
+++ b/test/cpp/util/cli_call_test.cc
@@ -33,18 +33,18 @@
 
 #include "test/cpp/util/cli_call.h"
 
-#include <grpc/grpc.h>
 #include <grpc++/channel.h>
 #include <grpc++/client_context.h>
 #include <grpc++/create_channel.h>
 #include <grpc++/server.h>
 #include <grpc++/server_builder.h>
 #include <grpc++/server_context.h>
+#include <grpc/grpc.h>
 #include <gtest/gtest.h>
 
+#include "src/proto/grpc/testing/echo.grpc.pb.h"
 #include "test/core/util/port.h"
 #include "test/core/util/test_config.h"
-#include "src/proto/grpc/testing/echo.grpc.pb.h"
 #include "test/cpp/util/string_ref_helper.h"
 
 using grpc::testing::EchoRequest;
diff --git a/test/cpp/util/grpc_cli.cc b/test/cpp/util/grpc_cli.cc
index f9b9f0c..0b0bc20 100644
--- a/test/cpp/util/grpc_cli.cc
+++ b/test/cpp/util/grpc_cli.cc
@@ -1,6 +1,6 @@
 /*
 
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -65,11 +65,11 @@
 #include <sstream>
 
 #include <gflags/gflags.h>
-#include <grpc/grpc.h>
 #include <grpc++/channel.h>
 #include <grpc++/create_channel.h>
 #include <grpc++/security/credentials.h>
 #include <grpc++/support/string_ref.h>
+#include <grpc/grpc.h>
 
 #include "test/cpp/util/cli_call.h"
 #include "test/cpp/util/string_ref_helper.h"
diff --git a/test/cpp/util/test_config.cc b/test/cpp/util/test_config.cc
index e74f8fb..c446ae5 100644
--- a/test/cpp/util/test_config.cc
+++ b/test/cpp/util/test_config.cc
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -31,8 +31,8 @@
  *
  */
 
-#include <gflags/gflags.h>
 #include "test/cpp/util/test_config.h"
+#include <gflags/gflags.h>
 
 // In some distros, gflags is in the namespace google, and in some others,
 // in gflags. This hack is enabling us to find both.
diff --git a/test/cpp/util/test_credentials_provider.cc b/test/cpp/util/test_credentials_provider.cc
index e314fd6..9c09a73 100644
--- a/test/cpp/util/test_credentials_provider.cc
+++ b/test/cpp/util/test_credentials_provider.cc
@@ -36,8 +36,8 @@
 
 #include <unordered_map>
 
-#include <grpc/support/sync.h>
 #include <grpc++/impl/sync.h>
+#include <grpc/support/sync.h>
 
 #include "test/core/end2end/data/ssl_test_data.h"
 
diff --git a/test/cpp/util/time_test.cc b/test/cpp/util/time_test.cc
index 48c6ce7..e78c85b 100644
--- a/test/cpp/util/time_test.cc
+++ b/test/cpp/util/time_test.cc
@@ -31,8 +31,8 @@
  *
  */
 
-#include <grpc/support/time.h>
 #include <grpc++/support/time.h>
+#include <grpc/support/time.h>
 #include <gtest/gtest.h>
 
 using std::chrono::duration_cast;
diff --git a/third_party/boringssl b/third_party/boringssl
index 9f897b2..907ae62 160000
--- a/third_party/boringssl
+++ b/third_party/boringssl
@@ -1 +1 @@
-Subproject commit 9f897b25800d2f54f5c442ef01a60721aeca6d87
+Subproject commit 907ae62b9d81121cb86b604f83e6b811a43f7a87
diff --git a/tools/buildgen/plugins/expand_version.py b/tools/buildgen/plugins/expand_version.py
index b55e1b1..dd77f7a 100755
--- a/tools/buildgen/plugins/expand_version.py
+++ b/tools/buildgen/plugins/expand_version.py
@@ -84,6 +84,11 @@
     else:
       return '%d.%d.%d' % (self.major, self.minor, self.patch)
 
+  def php(self):
+    """Version string in PHP style"""
+    """PECL does not allow tag in version string"""
+    return '%d.%d.%d' % (self.major, self.minor, self.patch)
+
 def mako_plugin(dictionary):
   """Expand version numbers:
      - for each language, ensure there's a language_version tag in
diff --git a/tools/codegen/core/gen_hpack_tables.c b/tools/codegen/core/gen_hpack_tables.c
index bae4e4c..d809bd3 100644
--- a/tools/codegen/core/gen_hpack_tables.c
+++ b/tools/codegen/core/gen_hpack_tables.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -33,13 +33,13 @@
 
 /* generates constant tables for hpack.c */
 
+#include <assert.h>
 #include <stddef.h>
 #include <stdio.h>
 #include <string.h>
-#include <assert.h>
 
 #include <grpc/support/log.h>
-#include "src/core/transport/chttp2/huffsyms.h"
+#include "src/core/lib/transport/chttp2/huffsyms.h"
 
 /*
  * first byte LUT generation
diff --git a/tools/codegen/core/gen_load_balancing_proto.sh b/tools/codegen/core/gen_load_balancing_proto.sh
index fb6a468..6a5363e 100755
--- a/tools/codegen/core/gen_load_balancing_proto.sh
+++ b/tools/codegen/core/gen_load_balancing_proto.sh
@@ -82,7 +82,7 @@
 
 readonly GRPC_ROOT=$PWD
 
-OUTPUT_DIR="$GRPC_ROOT/src/core/proto/grpc/lb/v0"
+OUTPUT_DIR="$GRPC_ROOT/src/core/lib/proto/grpc/lb/v0"
 if [ $# -eq 2 ]; then
   mkdir -p "$2"
   if [ $? != 0 ]; then
@@ -122,7 +122,7 @@
 "$(basename $1)"
 
 readonly PROTO_BASENAME=$(basename $1 .proto)
-sed -i "s:$PROTO_BASENAME.pb.h:src/core/proto/grpc/lb/v0/$PROTO_BASENAME.pb.h:g" \
+sed -i "s:$PROTO_BASENAME.pb.h:src/core/lib/proto/grpc/lb/v0/$PROTO_BASENAME.pb.h:g" \
     "$OUTPUT_DIR/$PROTO_BASENAME.pb.c"
 
 # prepend copyright
diff --git a/tools/codegen/core/gen_static_metadata.py b/tools/codegen/core/gen_static_metadata.py
index e6ae00e..70d4141 100755
--- a/tools/codegen/core/gen_static_metadata.py
+++ b/tools/codegen/core/gen_static_metadata.py
@@ -196,7 +196,7 @@
   all_strs.add(val)
   all_elems.add(elem)
   compression_elems.append(elem)
-  static_userdata[elem] = 1 + mask
+  static_userdata[elem] = 1 + (mask | 1)
 all_strs = sorted(list(all_strs), key=mangle)
 all_elems = sorted(list(all_elems), key=mangle)
 
@@ -215,9 +215,9 @@
     C = open('/dev/null', 'w')
 else:
   H = open(os.path.join(
-      os.path.dirname(sys.argv[0]), '../../../src/core/transport/static_metadata.h'), 'w')
+      os.path.dirname(sys.argv[0]), '../../../src/core/lib/transport/static_metadata.h'), 'w')
   C = open(os.path.join(
-      os.path.dirname(sys.argv[0]), '../../../src/core/transport/static_metadata.c'), 'w')
+      os.path.dirname(sys.argv[0]), '../../../src/core/lib/transport/static_metadata.c'), 'w')
 
 # copy-paste copyright notice from this file
 with open(sys.argv[0]) as my_source:
@@ -247,10 +247,10 @@
 print >>H, '#ifndef GRPC_INTERNAL_CORE_TRANSPORT_STATIC_METADATA_H'
 print >>H, '#define GRPC_INTERNAL_CORE_TRANSPORT_STATIC_METADATA_H'
 print >>H
-print >>H, '#include "src/core/transport/metadata.h"'
+print >>H, '#include "src/core/lib/transport/metadata.h"'
 print >>H
 
-print >>C, '#include "src/core/transport/static_metadata.h"'
+print >>C, '#include "src/core/lib/transport/static_metadata.h"'
 print >>C
 
 print >>H, '#define GRPC_STATIC_MDSTR_COUNT %d' % len(all_strs)
@@ -309,4 +309,3 @@
 
 H.close()
 C.close()
-
diff --git a/tools/distrib/check_include_guards.py b/tools/distrib/check_include_guards.py
index 977f40e..463e316 100755
--- a/tools/distrib/check_include_guards.py
+++ b/tools/distrib/check_include_guards.py
@@ -167,7 +167,7 @@
 args = argp.parse_args()
 
 KNOWN_BAD = set([
-    'src/core/proto/grpc/lb/v0/load_balancer.pb.h',
+    'src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h',
 ])
 
 
diff --git a/tools/distrib/check_nanopb_output.sh b/tools/distrib/check_nanopb_output.sh
index 51c4d75..e0a6094 100755
--- a/tools/distrib/check_nanopb_output.sh
+++ b/tools/distrib/check_nanopb_output.sh
@@ -60,7 +60,7 @@
   $NANOPB_TMP_OUTPUT
 
 # compare outputs to checked compiled code
-if ! diff -r $NANOPB_TMP_OUTPUT src/core/proto/grpc/lb/v0; then
-  echo "Outputs differ: $NANOPB_TMP_OUTPUT vs src/core/proto/grpc/lb/v0"
+if ! diff -r $NANOPB_TMP_OUTPUT src/core/lib/proto/grpc/lb/v0; then
+  echo "Outputs differ: $NANOPB_TMP_OUTPUT vs src/core/lib/proto/grpc/lb/v0"
   exit 2
 fi
diff --git a/tools/dockerfile/grpc_clang_format/Dockerfile b/tools/dockerfile/grpc_clang_format/Dockerfile
index 4b101f6..be2ffc5 100644
--- a/tools/dockerfile/grpc_clang_format/Dockerfile
+++ b/tools/dockerfile/grpc_clang_format/Dockerfile
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -27,9 +27,13 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-FROM ubuntu:vivid
+FROM ubuntu:wily
 RUN apt-get update
-RUN apt-get -y install clang-format-3.6
+RUN apt-get -y install wget
+RUN echo deb http://llvm.org/apt/wily/ llvm-toolchain-wily main >> /etc/apt/sources.list
+RUN echo deb-src http://llvm.org/apt/wily/ llvm-toolchain-wily main >> /etc/apt/sources.list
+RUN wget -O - http://llvm.org/apt/llvm-snapshot.gpg.key| apt-key add -
+RUN apt-get update
+RUN apt-get -y install clang-format-3.8
 ADD clang_format_all_the_things.sh /
 CMD ["echo 'Run with tools/distrib/clang_format_code.sh'"]
-
diff --git a/tools/dockerfile/grpc_clang_format/clang_format_all_the_things.sh b/tools/dockerfile/grpc_clang_format/clang_format_all_the_things.sh
index d56bc01..a50ca17 100755
--- a/tools/dockerfile/grpc_clang_format/clang_format_all_the_things.sh
+++ b/tools/dockerfile/grpc_clang_format/clang_format_all_the_things.sh
@@ -37,7 +37,7 @@
 GLOB="*.h *.c *.cc"
 
 # clang format command
-CLANG_FORMAT=clang-format-3.6
+CLANG_FORMAT=clang-format-3.8
 
 files=
 for dir in $DIRS
diff --git a/tools/dockerfile/test/cxx_jessie_x64/Dockerfile b/tools/dockerfile/test/cxx_jessie_x64/Dockerfile
index e3ed39d..b848f23 100644
--- a/tools/dockerfile/test/cxx_jessie_x64/Dockerfile
+++ b/tools/dockerfile/test/cxx_jessie_x64/Dockerfile
@@ -67,6 +67,39 @@
 # C++ dependencies
 RUN apt-get update && apt-get -y install libgflags-dev libgtest-dev libc++-dev clang && apt-get clean
 
+#=================
+# Update clang to a version with improved tsan
+
+RUN apt-get update && apt-get -y install python cmake && apt-get clean
+
+RUN git clone -n -b release_38 http://llvm.org/git/llvm.git && \
+  cd llvm && git checkout ad57503 && cd ..
+RUN git clone -n -b release_38 http://llvm.org/git/clang.git && \
+  cd clang && git checkout ad2c56e && cd ..
+RUN git clone -n -b release_38 http://llvm.org/git/compiler-rt.git && \
+  cd compiler-rt && git checkout 3176922 && cd ..
+RUN git clone -n -b release_38 \
+  http://llvm.org/git/clang-tools-extra.git && cd clang-tools-extra && \
+  git checkout c288525 && cd ..
+RUN git clone -n -b release_38 http://llvm.org/git/libcxx.git && \
+  cd libcxx && git checkout fda3549  && cd ..
+RUN git clone -n -b release_38 http://llvm.org/git/libcxxabi.git && \
+  cd libcxxabi && git checkout 8d4e51d && cd ..
+
+RUN mv clang llvm/tools
+RUN mv compiler-rt llvm/projects
+RUN mv clang-tools-extra llvm/tools/clang/tools
+RUN mv libcxx llvm/projects
+RUN mv libcxxabi llvm/projects
+
+RUN mkdir llvm-build
+RUN cd llvm-build && cmake \
+  -DCMAKE_BUILD_TYPE:STRING=Release \
+  -DCMAKE_INSTALL_PREFIX:STRING=/usr \
+  -DLLVM_TARGETS_TO_BUILD:STRING=X86 \
+  ../llvm
+RUN make -C llvm-build && make -C llvm-build install && rm -rf llvm-build
+
 # Prepare ccache
 RUN ln -s /usr/bin/ccache /usr/local/bin/gcc
 RUN ln -s /usr/bin/ccache /usr/local/bin/g++
diff --git a/tools/doxygen/Doxyfile.core.internal b/tools/doxygen/Doxyfile.core.internal
index 7161142..ec65df8 100644
--- a/tools/doxygen/Doxyfile.core.internal
+++ b/tools/doxygen/Doxyfile.core.internal
@@ -773,303 +773,306 @@
 include/grpc/impl/codegen/propagation_bits.h \
 include/grpc/impl/codegen/status.h \
 include/grpc/census.h \
-src/core/census/grpc_filter.h \
-src/core/census/grpc_plugin.h \
-src/core/channel/channel_args.h \
-src/core/channel/channel_stack.h \
-src/core/channel/channel_stack_builder.h \
-src/core/channel/client_channel.h \
-src/core/channel/client_uchannel.h \
-src/core/channel/compress_filter.h \
-src/core/channel/connected_channel.h \
-src/core/channel/context.h \
-src/core/channel/http_client_filter.h \
-src/core/channel/http_server_filter.h \
-src/core/channel/subchannel_call_holder.h \
-src/core/client_config/client_config.h \
-src/core/client_config/connector.h \
-src/core/client_config/initial_connect_string.h \
-src/core/client_config/lb_policies/load_balancer_api.h \
-src/core/client_config/lb_policies/pick_first.h \
-src/core/client_config/lb_policies/round_robin.h \
-src/core/client_config/lb_policy.h \
-src/core/client_config/lb_policy_factory.h \
-src/core/client_config/lb_policy_registry.h \
-src/core/client_config/resolver.h \
-src/core/client_config/resolver_factory.h \
-src/core/client_config/resolver_registry.h \
-src/core/client_config/resolvers/dns_resolver.h \
-src/core/client_config/resolvers/sockaddr_resolver.h \
-src/core/client_config/subchannel.h \
-src/core/client_config/subchannel_factory.h \
-src/core/client_config/subchannel_index.h \
-src/core/client_config/uri_parser.h \
-src/core/compression/algorithm_metadata.h \
-src/core/compression/message_compress.h \
-src/core/debug/trace.h \
-src/core/httpcli/format_request.h \
-src/core/httpcli/httpcli.h \
-src/core/httpcli/parser.h \
-src/core/iomgr/closure.h \
-src/core/iomgr/endpoint.h \
-src/core/iomgr/endpoint_pair.h \
-src/core/iomgr/ev_poll_and_epoll_posix.h \
-src/core/iomgr/ev_posix.h \
-src/core/iomgr/exec_ctx.h \
-src/core/iomgr/executor.h \
-src/core/iomgr/iocp_windows.h \
-src/core/iomgr/iomgr.h \
-src/core/iomgr/iomgr_internal.h \
-src/core/iomgr/iomgr_posix.h \
-src/core/iomgr/pollset.h \
-src/core/iomgr/pollset_set.h \
-src/core/iomgr/pollset_set_windows.h \
-src/core/iomgr/pollset_windows.h \
-src/core/iomgr/resolve_address.h \
-src/core/iomgr/sockaddr.h \
-src/core/iomgr/sockaddr_posix.h \
-src/core/iomgr/sockaddr_utils.h \
-src/core/iomgr/sockaddr_win32.h \
-src/core/iomgr/socket_utils_posix.h \
-src/core/iomgr/socket_windows.h \
-src/core/iomgr/tcp_client.h \
-src/core/iomgr/tcp_posix.h \
-src/core/iomgr/tcp_server.h \
-src/core/iomgr/tcp_windows.h \
-src/core/iomgr/time_averaged_stats.h \
-src/core/iomgr/timer.h \
-src/core/iomgr/timer_heap.h \
-src/core/iomgr/udp_server.h \
-src/core/iomgr/wakeup_fd_pipe.h \
-src/core/iomgr/wakeup_fd_posix.h \
-src/core/iomgr/workqueue.h \
-src/core/iomgr/workqueue_posix.h \
-src/core/iomgr/workqueue_windows.h \
-src/core/json/json.h \
-src/core/json/json_common.h \
-src/core/json/json_reader.h \
-src/core/json/json_writer.h \
-src/core/proto/grpc/lb/v0/load_balancer.pb.h \
-src/core/statistics/census_interface.h \
-src/core/statistics/census_rpc_stats.h \
-src/core/surface/api_trace.h \
-src/core/surface/call.h \
-src/core/surface/call_test_only.h \
-src/core/surface/channel.h \
-src/core/surface/channel_init.h \
-src/core/surface/channel_stack_type.h \
-src/core/surface/completion_queue.h \
-src/core/surface/event_string.h \
-src/core/surface/init.h \
-src/core/surface/lame_client.h \
-src/core/surface/server.h \
-src/core/surface/surface_trace.h \
-src/core/transport/byte_stream.h \
-src/core/transport/chttp2/alpn.h \
-src/core/transport/chttp2/bin_encoder.h \
-src/core/transport/chttp2/frame.h \
-src/core/transport/chttp2/frame_data.h \
-src/core/transport/chttp2/frame_goaway.h \
-src/core/transport/chttp2/frame_ping.h \
-src/core/transport/chttp2/frame_rst_stream.h \
-src/core/transport/chttp2/frame_settings.h \
-src/core/transport/chttp2/frame_window_update.h \
-src/core/transport/chttp2/hpack_encoder.h \
-src/core/transport/chttp2/hpack_parser.h \
-src/core/transport/chttp2/hpack_table.h \
-src/core/transport/chttp2/http2_errors.h \
-src/core/transport/chttp2/huffsyms.h \
-src/core/transport/chttp2/incoming_metadata.h \
-src/core/transport/chttp2/internal.h \
-src/core/transport/chttp2/status_conversion.h \
-src/core/transport/chttp2/stream_map.h \
-src/core/transport/chttp2/timeout_encoding.h \
-src/core/transport/chttp2/varint.h \
-src/core/transport/chttp2_transport.h \
-src/core/transport/connectivity_state.h \
-src/core/transport/metadata.h \
-src/core/transport/metadata_batch.h \
-src/core/transport/static_metadata.h \
-src/core/transport/transport.h \
-src/core/transport/transport_impl.h \
-src/core/security/auth_filters.h \
-src/core/security/b64.h \
-src/core/security/credentials.h \
-src/core/security/handshake.h \
-src/core/security/json_token.h \
-src/core/security/jwt_verifier.h \
-src/core/security/secure_endpoint.h \
-src/core/security/security_connector.h \
-src/core/security/security_context.h \
-src/core/tsi/fake_transport_security.h \
-src/core/tsi/ssl_transport_security.h \
-src/core/tsi/ssl_types.h \
-src/core/tsi/transport_security.h \
-src/core/tsi/transport_security_interface.h \
-src/core/census/aggregation.h \
-src/core/census/mlog.h \
-src/core/census/rpc_metric_id.h \
+src/core/lib/census/grpc_filter.h \
+src/core/lib/census/grpc_plugin.h \
+src/core/lib/channel/channel_args.h \
+src/core/lib/channel/channel_stack.h \
+src/core/lib/channel/channel_stack_builder.h \
+src/core/lib/channel/client_channel.h \
+src/core/lib/channel/compress_filter.h \
+src/core/lib/channel/connected_channel.h \
+src/core/lib/channel/context.h \
+src/core/lib/channel/http_client_filter.h \
+src/core/lib/channel/http_server_filter.h \
+src/core/lib/channel/subchannel_call_holder.h \
+src/core/lib/client_config/client_config.h \
+src/core/lib/client_config/connector.h \
+src/core/lib/client_config/initial_connect_string.h \
+src/core/lib/client_config/lb_policies/load_balancer_api.h \
+src/core/lib/client_config/lb_policies/pick_first.h \
+src/core/lib/client_config/lb_policies/round_robin.h \
+src/core/lib/client_config/lb_policy.h \
+src/core/lib/client_config/lb_policy_factory.h \
+src/core/lib/client_config/lb_policy_registry.h \
+src/core/lib/client_config/resolver.h \
+src/core/lib/client_config/resolver_factory.h \
+src/core/lib/client_config/resolver_registry.h \
+src/core/lib/client_config/resolvers/dns_resolver.h \
+src/core/lib/client_config/resolvers/sockaddr_resolver.h \
+src/core/lib/client_config/subchannel.h \
+src/core/lib/client_config/subchannel_factory.h \
+src/core/lib/client_config/subchannel_index.h \
+src/core/lib/client_config/uri_parser.h \
+src/core/lib/compression/algorithm_metadata.h \
+src/core/lib/compression/message_compress.h \
+src/core/lib/debug/trace.h \
+src/core/lib/http/format_request.h \
+src/core/lib/http/httpcli.h \
+src/core/lib/http/parser.h \
+src/core/lib/iomgr/closure.h \
+src/core/lib/iomgr/endpoint.h \
+src/core/lib/iomgr/endpoint_pair.h \
+src/core/lib/iomgr/ev_poll_and_epoll_posix.h \
+src/core/lib/iomgr/ev_posix.h \
+src/core/lib/iomgr/exec_ctx.h \
+src/core/lib/iomgr/executor.h \
+src/core/lib/iomgr/iocp_windows.h \
+src/core/lib/iomgr/iomgr.h \
+src/core/lib/iomgr/iomgr_internal.h \
+src/core/lib/iomgr/iomgr_posix.h \
+src/core/lib/iomgr/pollset.h \
+src/core/lib/iomgr/pollset_posix.h \
+src/core/lib/iomgr/pollset_set.h \
+src/core/lib/iomgr/pollset_set_posix.h \
+src/core/lib/iomgr/pollset_set_windows.h \
+src/core/lib/iomgr/pollset_windows.h \
+src/core/lib/iomgr/resolve_address.h \
+src/core/lib/iomgr/sockaddr.h \
+src/core/lib/iomgr/sockaddr_posix.h \
+src/core/lib/iomgr/sockaddr_utils.h \
+src/core/lib/iomgr/sockaddr_win32.h \
+src/core/lib/iomgr/socket_utils_posix.h \
+src/core/lib/iomgr/socket_windows.h \
+src/core/lib/iomgr/tcp_client.h \
+src/core/lib/iomgr/tcp_posix.h \
+src/core/lib/iomgr/tcp_server.h \
+src/core/lib/iomgr/tcp_windows.h \
+src/core/lib/iomgr/time_averaged_stats.h \
+src/core/lib/iomgr/timer.h \
+src/core/lib/iomgr/timer_heap.h \
+src/core/lib/iomgr/udp_server.h \
+src/core/lib/iomgr/unix_sockets_posix.h \
+src/core/lib/iomgr/wakeup_fd_pipe.h \
+src/core/lib/iomgr/wakeup_fd_posix.h \
+src/core/lib/iomgr/workqueue.h \
+src/core/lib/iomgr/workqueue_posix.h \
+src/core/lib/iomgr/workqueue_windows.h \
+src/core/lib/json/json.h \
+src/core/lib/json/json_common.h \
+src/core/lib/json/json_reader.h \
+src/core/lib/json/json_writer.h \
+src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h \
+src/core/lib/statistics/census_interface.h \
+src/core/lib/statistics/census_rpc_stats.h \
+src/core/lib/surface/api_trace.h \
+src/core/lib/surface/call.h \
+src/core/lib/surface/call_test_only.h \
+src/core/lib/surface/channel.h \
+src/core/lib/surface/channel_init.h \
+src/core/lib/surface/channel_stack_type.h \
+src/core/lib/surface/completion_queue.h \
+src/core/lib/surface/event_string.h \
+src/core/lib/surface/init.h \
+src/core/lib/surface/lame_client.h \
+src/core/lib/surface/server.h \
+src/core/lib/surface/surface_trace.h \
+src/core/lib/transport/byte_stream.h \
+src/core/lib/transport/chttp2/alpn.h \
+src/core/lib/transport/chttp2/bin_encoder.h \
+src/core/lib/transport/chttp2/frame.h \
+src/core/lib/transport/chttp2/frame_data.h \
+src/core/lib/transport/chttp2/frame_goaway.h \
+src/core/lib/transport/chttp2/frame_ping.h \
+src/core/lib/transport/chttp2/frame_rst_stream.h \
+src/core/lib/transport/chttp2/frame_settings.h \
+src/core/lib/transport/chttp2/frame_window_update.h \
+src/core/lib/transport/chttp2/hpack_encoder.h \
+src/core/lib/transport/chttp2/hpack_parser.h \
+src/core/lib/transport/chttp2/hpack_table.h \
+src/core/lib/transport/chttp2/http2_errors.h \
+src/core/lib/transport/chttp2/huffsyms.h \
+src/core/lib/transport/chttp2/incoming_metadata.h \
+src/core/lib/transport/chttp2/internal.h \
+src/core/lib/transport/chttp2/status_conversion.h \
+src/core/lib/transport/chttp2/stream_map.h \
+src/core/lib/transport/chttp2/timeout_encoding.h \
+src/core/lib/transport/chttp2/varint.h \
+src/core/lib/transport/chttp2_transport.h \
+src/core/lib/transport/connectivity_state.h \
+src/core/lib/transport/metadata.h \
+src/core/lib/transport/metadata_batch.h \
+src/core/lib/transport/static_metadata.h \
+src/core/lib/transport/transport.h \
+src/core/lib/transport/transport_impl.h \
+src/core/lib/security/auth_filters.h \
+src/core/lib/security/b64.h \
+src/core/lib/security/credentials.h \
+src/core/lib/security/handshake.h \
+src/core/lib/security/json_token.h \
+src/core/lib/security/jwt_verifier.h \
+src/core/lib/security/secure_endpoint.h \
+src/core/lib/security/security_connector.h \
+src/core/lib/security/security_context.h \
+src/core/lib/tsi/fake_transport_security.h \
+src/core/lib/tsi/ssl_transport_security.h \
+src/core/lib/tsi/ssl_types.h \
+src/core/lib/tsi/transport_security.h \
+src/core/lib/tsi/transport_security_interface.h \
+src/core/lib/census/aggregation.h \
+src/core/lib/census/mlog.h \
+src/core/lib/census/rpc_metric_id.h \
 third_party/nanopb/pb.h \
 third_party/nanopb/pb_common.h \
 third_party/nanopb/pb_decode.h \
 third_party/nanopb/pb_encode.h \
-src/core/census/grpc_context.c \
-src/core/census/grpc_filter.c \
-src/core/census/grpc_plugin.c \
-src/core/channel/channel_args.c \
-src/core/channel/channel_stack.c \
-src/core/channel/channel_stack_builder.c \
-src/core/channel/client_channel.c \
-src/core/channel/client_uchannel.c \
-src/core/channel/compress_filter.c \
-src/core/channel/connected_channel.c \
-src/core/channel/http_client_filter.c \
-src/core/channel/http_server_filter.c \
-src/core/channel/subchannel_call_holder.c \
-src/core/client_config/client_config.c \
-src/core/client_config/connector.c \
-src/core/client_config/default_initial_connect_string.c \
-src/core/client_config/initial_connect_string.c \
-src/core/client_config/lb_policies/load_balancer_api.c \
-src/core/client_config/lb_policies/pick_first.c \
-src/core/client_config/lb_policies/round_robin.c \
-src/core/client_config/lb_policy.c \
-src/core/client_config/lb_policy_factory.c \
-src/core/client_config/lb_policy_registry.c \
-src/core/client_config/resolver.c \
-src/core/client_config/resolver_factory.c \
-src/core/client_config/resolver_registry.c \
-src/core/client_config/resolvers/dns_resolver.c \
-src/core/client_config/resolvers/sockaddr_resolver.c \
-src/core/client_config/subchannel.c \
-src/core/client_config/subchannel_factory.c \
-src/core/client_config/subchannel_index.c \
-src/core/client_config/uri_parser.c \
-src/core/compression/compression_algorithm.c \
-src/core/compression/message_compress.c \
-src/core/debug/trace.c \
-src/core/httpcli/format_request.c \
-src/core/httpcli/httpcli.c \
-src/core/httpcli/parser.c \
-src/core/iomgr/closure.c \
-src/core/iomgr/endpoint.c \
-src/core/iomgr/endpoint_pair_posix.c \
-src/core/iomgr/endpoint_pair_windows.c \
-src/core/iomgr/ev_poll_and_epoll_posix.c \
-src/core/iomgr/ev_posix.c \
-src/core/iomgr/exec_ctx.c \
-src/core/iomgr/executor.c \
-src/core/iomgr/iocp_windows.c \
-src/core/iomgr/iomgr.c \
-src/core/iomgr/iomgr_posix.c \
-src/core/iomgr/iomgr_windows.c \
-src/core/iomgr/pollset_set_windows.c \
-src/core/iomgr/pollset_windows.c \
-src/core/iomgr/resolve_address_posix.c \
-src/core/iomgr/resolve_address_windows.c \
-src/core/iomgr/sockaddr_utils.c \
-src/core/iomgr/socket_utils_common_posix.c \
-src/core/iomgr/socket_utils_linux.c \
-src/core/iomgr/socket_utils_posix.c \
-src/core/iomgr/socket_windows.c \
-src/core/iomgr/tcp_client_posix.c \
-src/core/iomgr/tcp_client_windows.c \
-src/core/iomgr/tcp_posix.c \
-src/core/iomgr/tcp_server_posix.c \
-src/core/iomgr/tcp_server_windows.c \
-src/core/iomgr/tcp_windows.c \
-src/core/iomgr/time_averaged_stats.c \
-src/core/iomgr/timer.c \
-src/core/iomgr/timer_heap.c \
-src/core/iomgr/udp_server.c \
-src/core/iomgr/wakeup_fd_eventfd.c \
-src/core/iomgr/wakeup_fd_nospecial.c \
-src/core/iomgr/wakeup_fd_pipe.c \
-src/core/iomgr/wakeup_fd_posix.c \
-src/core/iomgr/workqueue_posix.c \
-src/core/iomgr/workqueue_windows.c \
-src/core/json/json.c \
-src/core/json/json_reader.c \
-src/core/json/json_string.c \
-src/core/json/json_writer.c \
-src/core/proto/grpc/lb/v0/load_balancer.pb.c \
-src/core/surface/alarm.c \
-src/core/surface/api_trace.c \
-src/core/surface/byte_buffer.c \
-src/core/surface/byte_buffer_reader.c \
-src/core/surface/call.c \
-src/core/surface/call_details.c \
-src/core/surface/call_log_batch.c \
-src/core/surface/channel.c \
-src/core/surface/channel_connectivity.c \
-src/core/surface/channel_create.c \
-src/core/surface/channel_init.c \
-src/core/surface/channel_ping.c \
-src/core/surface/channel_stack_type.c \
-src/core/surface/completion_queue.c \
-src/core/surface/event_string.c \
-src/core/surface/init.c \
-src/core/surface/lame_client.c \
-src/core/surface/metadata_array.c \
-src/core/surface/server.c \
-src/core/surface/server_chttp2.c \
-src/core/surface/validate_metadata.c \
-src/core/surface/version.c \
-src/core/transport/byte_stream.c \
-src/core/transport/chttp2/alpn.c \
-src/core/transport/chttp2/bin_encoder.c \
-src/core/transport/chttp2/frame_data.c \
-src/core/transport/chttp2/frame_goaway.c \
-src/core/transport/chttp2/frame_ping.c \
-src/core/transport/chttp2/frame_rst_stream.c \
-src/core/transport/chttp2/frame_settings.c \
-src/core/transport/chttp2/frame_window_update.c \
-src/core/transport/chttp2/hpack_encoder.c \
-src/core/transport/chttp2/hpack_parser.c \
-src/core/transport/chttp2/hpack_table.c \
-src/core/transport/chttp2/huffsyms.c \
-src/core/transport/chttp2/incoming_metadata.c \
-src/core/transport/chttp2/parsing.c \
-src/core/transport/chttp2/status_conversion.c \
-src/core/transport/chttp2/stream_lists.c \
-src/core/transport/chttp2/stream_map.c \
-src/core/transport/chttp2/timeout_encoding.c \
-src/core/transport/chttp2/varint.c \
-src/core/transport/chttp2/writing.c \
-src/core/transport/chttp2_transport.c \
-src/core/transport/connectivity_state.c \
-src/core/transport/metadata.c \
-src/core/transport/metadata_batch.c \
-src/core/transport/static_metadata.c \
-src/core/transport/transport.c \
-src/core/transport/transport_op_string.c \
-src/core/httpcli/httpcli_security_connector.c \
-src/core/security/b64.c \
-src/core/security/client_auth_filter.c \
-src/core/security/credentials.c \
-src/core/security/credentials_metadata.c \
-src/core/security/credentials_posix.c \
-src/core/security/credentials_win32.c \
-src/core/security/google_default_credentials.c \
-src/core/security/handshake.c \
-src/core/security/json_token.c \
-src/core/security/jwt_verifier.c \
-src/core/security/secure_endpoint.c \
-src/core/security/security_connector.c \
-src/core/security/security_context.c \
-src/core/security/server_auth_filter.c \
-src/core/security/server_secure_chttp2.c \
-src/core/surface/init_secure.c \
-src/core/surface/secure_channel_create.c \
-src/core/tsi/fake_transport_security.c \
-src/core/tsi/ssl_transport_security.c \
-src/core/tsi/transport_security.c \
-src/core/census/context.c \
-src/core/census/initialize.c \
-src/core/census/mlog.c \
-src/core/census/operation.c \
-src/core/census/placeholders.c \
-src/core/census/tracing.c \
+src/core/lib/census/grpc_context.c \
+src/core/lib/census/grpc_filter.c \
+src/core/lib/census/grpc_plugin.c \
+src/core/lib/channel/channel_args.c \
+src/core/lib/channel/channel_stack.c \
+src/core/lib/channel/channel_stack_builder.c \
+src/core/lib/channel/client_channel.c \
+src/core/lib/channel/compress_filter.c \
+src/core/lib/channel/connected_channel.c \
+src/core/lib/channel/http_client_filter.c \
+src/core/lib/channel/http_server_filter.c \
+src/core/lib/channel/subchannel_call_holder.c \
+src/core/lib/client_config/client_config.c \
+src/core/lib/client_config/connector.c \
+src/core/lib/client_config/default_initial_connect_string.c \
+src/core/lib/client_config/initial_connect_string.c \
+src/core/lib/client_config/lb_policies/load_balancer_api.c \
+src/core/lib/client_config/lb_policies/pick_first.c \
+src/core/lib/client_config/lb_policies/round_robin.c \
+src/core/lib/client_config/lb_policy.c \
+src/core/lib/client_config/lb_policy_factory.c \
+src/core/lib/client_config/lb_policy_registry.c \
+src/core/lib/client_config/resolver.c \
+src/core/lib/client_config/resolver_factory.c \
+src/core/lib/client_config/resolver_registry.c \
+src/core/lib/client_config/resolvers/dns_resolver.c \
+src/core/lib/client_config/resolvers/sockaddr_resolver.c \
+src/core/lib/client_config/subchannel.c \
+src/core/lib/client_config/subchannel_factory.c \
+src/core/lib/client_config/subchannel_index.c \
+src/core/lib/client_config/uri_parser.c \
+src/core/lib/compression/compression_algorithm.c \
+src/core/lib/compression/message_compress.c \
+src/core/lib/debug/trace.c \
+src/core/lib/http/format_request.c \
+src/core/lib/http/httpcli.c \
+src/core/lib/http/parser.c \
+src/core/lib/iomgr/closure.c \
+src/core/lib/iomgr/endpoint.c \
+src/core/lib/iomgr/endpoint_pair_posix.c \
+src/core/lib/iomgr/endpoint_pair_windows.c \
+src/core/lib/iomgr/ev_poll_and_epoll_posix.c \
+src/core/lib/iomgr/ev_posix.c \
+src/core/lib/iomgr/exec_ctx.c \
+src/core/lib/iomgr/executor.c \
+src/core/lib/iomgr/iocp_windows.c \
+src/core/lib/iomgr/iomgr.c \
+src/core/lib/iomgr/iomgr_posix.c \
+src/core/lib/iomgr/iomgr_windows.c \
+src/core/lib/iomgr/pollset_set_windows.c \
+src/core/lib/iomgr/pollset_windows.c \
+src/core/lib/iomgr/resolve_address_posix.c \
+src/core/lib/iomgr/resolve_address_windows.c \
+src/core/lib/iomgr/sockaddr_utils.c \
+src/core/lib/iomgr/socket_utils_common_posix.c \
+src/core/lib/iomgr/socket_utils_linux.c \
+src/core/lib/iomgr/socket_utils_posix.c \
+src/core/lib/iomgr/socket_windows.c \
+src/core/lib/iomgr/tcp_client_posix.c \
+src/core/lib/iomgr/tcp_client_windows.c \
+src/core/lib/iomgr/tcp_posix.c \
+src/core/lib/iomgr/tcp_server_posix.c \
+src/core/lib/iomgr/tcp_server_windows.c \
+src/core/lib/iomgr/tcp_windows.c \
+src/core/lib/iomgr/time_averaged_stats.c \
+src/core/lib/iomgr/timer.c \
+src/core/lib/iomgr/timer_heap.c \
+src/core/lib/iomgr/udp_server.c \
+src/core/lib/iomgr/unix_sockets_posix.c \
+src/core/lib/iomgr/unix_sockets_posix_noop.c \
+src/core/lib/iomgr/wakeup_fd_eventfd.c \
+src/core/lib/iomgr/wakeup_fd_nospecial.c \
+src/core/lib/iomgr/wakeup_fd_pipe.c \
+src/core/lib/iomgr/wakeup_fd_posix.c \
+src/core/lib/iomgr/workqueue_posix.c \
+src/core/lib/iomgr/workqueue_windows.c \
+src/core/lib/json/json.c \
+src/core/lib/json/json_reader.c \
+src/core/lib/json/json_string.c \
+src/core/lib/json/json_writer.c \
+src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c \
+src/core/lib/surface/alarm.c \
+src/core/lib/surface/api_trace.c \
+src/core/lib/surface/byte_buffer.c \
+src/core/lib/surface/byte_buffer_reader.c \
+src/core/lib/surface/call.c \
+src/core/lib/surface/call_details.c \
+src/core/lib/surface/call_log_batch.c \
+src/core/lib/surface/channel.c \
+src/core/lib/surface/channel_connectivity.c \
+src/core/lib/surface/channel_create.c \
+src/core/lib/surface/channel_init.c \
+src/core/lib/surface/channel_ping.c \
+src/core/lib/surface/channel_stack_type.c \
+src/core/lib/surface/completion_queue.c \
+src/core/lib/surface/event_string.c \
+src/core/lib/surface/init.c \
+src/core/lib/surface/lame_client.c \
+src/core/lib/surface/metadata_array.c \
+src/core/lib/surface/server.c \
+src/core/lib/surface/server_chttp2.c \
+src/core/lib/surface/validate_metadata.c \
+src/core/lib/surface/version.c \
+src/core/lib/transport/byte_stream.c \
+src/core/lib/transport/chttp2/alpn.c \
+src/core/lib/transport/chttp2/bin_encoder.c \
+src/core/lib/transport/chttp2/frame_data.c \
+src/core/lib/transport/chttp2/frame_goaway.c \
+src/core/lib/transport/chttp2/frame_ping.c \
+src/core/lib/transport/chttp2/frame_rst_stream.c \
+src/core/lib/transport/chttp2/frame_settings.c \
+src/core/lib/transport/chttp2/frame_window_update.c \
+src/core/lib/transport/chttp2/hpack_encoder.c \
+src/core/lib/transport/chttp2/hpack_parser.c \
+src/core/lib/transport/chttp2/hpack_table.c \
+src/core/lib/transport/chttp2/huffsyms.c \
+src/core/lib/transport/chttp2/incoming_metadata.c \
+src/core/lib/transport/chttp2/parsing.c \
+src/core/lib/transport/chttp2/status_conversion.c \
+src/core/lib/transport/chttp2/stream_lists.c \
+src/core/lib/transport/chttp2/stream_map.c \
+src/core/lib/transport/chttp2/timeout_encoding.c \
+src/core/lib/transport/chttp2/varint.c \
+src/core/lib/transport/chttp2/writing.c \
+src/core/lib/transport/chttp2_transport.c \
+src/core/lib/transport/connectivity_state.c \
+src/core/lib/transport/metadata.c \
+src/core/lib/transport/metadata_batch.c \
+src/core/lib/transport/static_metadata.c \
+src/core/lib/transport/transport.c \
+src/core/lib/transport/transport_op_string.c \
+src/core/lib/http/httpcli_security_connector.c \
+src/core/lib/security/b64.c \
+src/core/lib/security/client_auth_filter.c \
+src/core/lib/security/credentials.c \
+src/core/lib/security/credentials_metadata.c \
+src/core/lib/security/credentials_posix.c \
+src/core/lib/security/credentials_win32.c \
+src/core/lib/security/google_default_credentials.c \
+src/core/lib/security/handshake.c \
+src/core/lib/security/json_token.c \
+src/core/lib/security/jwt_verifier.c \
+src/core/lib/security/secure_endpoint.c \
+src/core/lib/security/security_connector.c \
+src/core/lib/security/security_context.c \
+src/core/lib/security/server_auth_filter.c \
+src/core/lib/security/server_secure_chttp2.c \
+src/core/lib/surface/init_secure.c \
+src/core/lib/surface/secure_channel_create.c \
+src/core/lib/tsi/fake_transport_security.c \
+src/core/lib/tsi/ssl_transport_security.c \
+src/core/lib/tsi/transport_security.c \
+src/core/lib/census/context.c \
+src/core/lib/census/initialize.c \
+src/core/lib/census/mlog.c \
+src/core/lib/census/operation.c \
+src/core/lib/census/placeholders.c \
+src/core/lib/census/tracing.c \
 third_party/nanopb/pb_common.c \
 third_party/nanopb/pb_decode.c \
 third_party/nanopb/pb_encode.c \
@@ -1115,62 +1118,62 @@
 include/grpc/impl/codegen/sync_posix.h \
 include/grpc/impl/codegen/sync_win32.h \
 include/grpc/impl/codegen/time.h \
-src/core/profiling/timers.h \
-src/core/support/backoff.h \
-src/core/support/block_annotate.h \
-src/core/support/env.h \
-src/core/support/load_file.h \
-src/core/support/murmur_hash.h \
-src/core/support/stack_lockfree.h \
-src/core/support/string.h \
-src/core/support/string_win32.h \
-src/core/support/thd_internal.h \
-src/core/support/time_precise.h \
-src/core/support/tmpfile.h \
-src/core/profiling/basic_timers.c \
-src/core/profiling/stap_timers.c \
-src/core/support/alloc.c \
-src/core/support/avl.c \
-src/core/support/backoff.c \
-src/core/support/cmdline.c \
-src/core/support/cpu_iphone.c \
-src/core/support/cpu_linux.c \
-src/core/support/cpu_posix.c \
-src/core/support/cpu_windows.c \
-src/core/support/env_linux.c \
-src/core/support/env_posix.c \
-src/core/support/env_win32.c \
-src/core/support/histogram.c \
-src/core/support/host_port.c \
-src/core/support/load_file.c \
-src/core/support/log.c \
-src/core/support/log_android.c \
-src/core/support/log_linux.c \
-src/core/support/log_posix.c \
-src/core/support/log_win32.c \
-src/core/support/murmur_hash.c \
-src/core/support/slice.c \
-src/core/support/slice_buffer.c \
-src/core/support/stack_lockfree.c \
-src/core/support/string.c \
-src/core/support/string_posix.c \
-src/core/support/string_win32.c \
-src/core/support/subprocess_posix.c \
-src/core/support/subprocess_windows.c \
-src/core/support/sync.c \
-src/core/support/sync_posix.c \
-src/core/support/sync_win32.c \
-src/core/support/thd.c \
-src/core/support/thd_posix.c \
-src/core/support/thd_win32.c \
-src/core/support/time.c \
-src/core/support/time_posix.c \
-src/core/support/time_precise.c \
-src/core/support/time_win32.c \
-src/core/support/tls_pthread.c \
-src/core/support/tmpfile_posix.c \
-src/core/support/tmpfile_win32.c \
-src/core/support/wrap_memcpy.c
+src/core/lib/profiling/timers.h \
+src/core/lib/support/backoff.h \
+src/core/lib/support/block_annotate.h \
+src/core/lib/support/env.h \
+src/core/lib/support/load_file.h \
+src/core/lib/support/murmur_hash.h \
+src/core/lib/support/stack_lockfree.h \
+src/core/lib/support/string.h \
+src/core/lib/support/string_win32.h \
+src/core/lib/support/thd_internal.h \
+src/core/lib/support/time_precise.h \
+src/core/lib/support/tmpfile.h \
+src/core/lib/profiling/basic_timers.c \
+src/core/lib/profiling/stap_timers.c \
+src/core/lib/support/alloc.c \
+src/core/lib/support/avl.c \
+src/core/lib/support/backoff.c \
+src/core/lib/support/cmdline.c \
+src/core/lib/support/cpu_iphone.c \
+src/core/lib/support/cpu_linux.c \
+src/core/lib/support/cpu_posix.c \
+src/core/lib/support/cpu_windows.c \
+src/core/lib/support/env_linux.c \
+src/core/lib/support/env_posix.c \
+src/core/lib/support/env_win32.c \
+src/core/lib/support/histogram.c \
+src/core/lib/support/host_port.c \
+src/core/lib/support/load_file.c \
+src/core/lib/support/log.c \
+src/core/lib/support/log_android.c \
+src/core/lib/support/log_linux.c \
+src/core/lib/support/log_posix.c \
+src/core/lib/support/log_win32.c \
+src/core/lib/support/murmur_hash.c \
+src/core/lib/support/slice.c \
+src/core/lib/support/slice_buffer.c \
+src/core/lib/support/stack_lockfree.c \
+src/core/lib/support/string.c \
+src/core/lib/support/string_posix.c \
+src/core/lib/support/string_win32.c \
+src/core/lib/support/subprocess_posix.c \
+src/core/lib/support/subprocess_windows.c \
+src/core/lib/support/sync.c \
+src/core/lib/support/sync_posix.c \
+src/core/lib/support/sync_win32.c \
+src/core/lib/support/thd.c \
+src/core/lib/support/thd_posix.c \
+src/core/lib/support/thd_win32.c \
+src/core/lib/support/time.c \
+src/core/lib/support/time_posix.c \
+src/core/lib/support/time_precise.c \
+src/core/lib/support/time_win32.c \
+src/core/lib/support/tls_pthread.c \
+src/core/lib/support/tmpfile_posix.c \
+src/core/lib/support/tmpfile_win32.c \
+src/core/lib/support/wrap_memcpy.c
 
 # This tag can be used to specify the character encoding of the source files
 # that doxygen parses. Internally doxygen uses the UTF-8 encoding. Doxygen uses
diff --git a/tools/gce/create_linux_performance_worker.sh b/tools/gce/create_linux_performance_worker.sh
new file mode 100755
index 0000000..720fc80
--- /dev/null
+++ b/tools/gce/create_linux_performance_worker.sh
@@ -0,0 +1,61 @@
+#!/bin/bash
+# Copyright 2015-2016, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+# Creates a performance worker on GCE.
+
+set -ex
+
+cd $(dirname $0)
+
+CLOUD_PROJECT=grpc-testing
+ZONE=us-central1-b  # this zone allows 32core machines
+
+INSTANCE_NAME="${1:-grpc-performance-driver}"
+MACHINE_TYPE=n1-standard-32
+
+gcloud compute instances create $INSTANCE_NAME \
+    --project="$CLOUD_PROJECT" \
+    --zone "$ZONE" \
+    --machine-type $MACHINE_TYPE \
+    --image ubuntu-15-10 \
+    --boot-disk-size 300
+
+echo 'Created GCE instance, waiting 60 seconds for it to come online.'
+sleep 60
+
+gcloud compute copy-files \
+    --project="$CLOUD_PROJECT" \
+    --zone "$ZONE" \
+    jenkins_master.pub linux_performance_worker_init.sh ${INSTANCE_NAME}:~
+
+gcloud compute ssh \
+    --project="$CLOUD_PROJECT" \
+    --zone "$ZONE" \
+    $INSTANCE_NAME --command "./linux_performance_worker_init.sh"
diff --git a/tools/gce/linux_performance_worker_init.sh b/tools/gce/linux_performance_worker_init.sh
new file mode 100755
index 0000000..bae2b51
--- /dev/null
+++ b/tools/gce/linux_performance_worker_init.sh
@@ -0,0 +1,106 @@
+#!/bin/bash
+# Copyright 2015-2016, Google Inc.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+#     * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following disclaimer
+# in the documentation and/or other materials provided with the
+# distribution.
+#     * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived from
+# this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+# Initializes a fresh GCE VM to become a jenkins linux performance worker.
+# You shouldn't run this script on your own,
+# use create_linux_performance_worker.sh instead.
+
+set -ex
+
+sudo apt-get update
+
+# Install JRE
+sudo apt-get install -y openjdk-7-jre
+sudo apt-get install -y unzip lsof
+
+# Setup jenkins user (or the user will already exist bcuz magic)
+sudo adduser jenkins --disabled-password || true
+
+# Add pubkey of jenkins@grpc-jenkins-master to authorized keys of jenkins@
+# This needs to happen as the last step to prevent Jenkins master from connecting
+# to a machine that hasn't been properly setup yet.
+cat jenkins_master.pub | sudo tee --append ~jenkins/.ssh/authorized_keys
+
+sudo apt-get install -y \
+  autoconf \
+  autotools-dev \
+  build-essential \
+  bzip2 \
+  ccache \
+  curl \
+  gcc \
+  gcc-multilib \
+  git \
+  gyp \
+  lcov \
+  libc6 \
+  libc6-dbg \
+  libc6-dev \
+  libgtest-dev \
+  libtool \
+  make \
+  strace \
+  pypy \
+  python-dev \
+  python-pip \
+  python-setuptools \
+  python-yaml \
+  telnet \
+  unzip \
+  wget \
+  zip
+
+# perftools
+sudo apt-get install -y google-perftools libgoogle-perftools-dev
+
+# C++ dependencies
+sudo apt-get install -y libgflags-dev libgtest-dev libc++-dev clang
+
+# Python dependencies
+sudo pip install tabulate
+curl -O https://bootstrap.pypa.io/get-pip.py
+sudo pypy get-pip.py
+sudo pypy -m pip install tabulate
+
+# Node dependences.
+touch .profile
+curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.25.4/install.sh | bash
+nvm install 0.12 && npm config set cache /tmp/npm-cache
+
+# C# dependencies (http://www.mono-project.com/docs/getting-started/install/linux/#debian-ubuntu-and-derivatives)
+
+sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
+echo "deb http://download.mono-project.com/repo/debian wheezy main" | sudo tee /etc/apt/sources.list.d/mono-xamarin.list
+sudo apt-get update
+sudo apt-get install -y mono-devel nuget
+
+# Ruby dependencies
+gpg --keyserver hkp://keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3
+curl -sSL https://get.rvm.io | bash -s stable --ruby
diff --git a/tools/http2_interop/http2interop_test.go b/tools/http2_interop/http2interop_test.go
index fb314da..305125f 100644
--- a/tools/http2_interop/http2interop_test.go
+++ b/tools/http2_interop/http2interop_test.go
@@ -49,7 +49,7 @@
 
 	if ctx.UseTestCa {
 		// It would be odd if useTestCa was true, but not useTls.  meh
-		certData, err := ioutil.ReadFile("src/core/tsi/test_creds/ca.pem")
+		certData, err := ioutil.ReadFile("src/core/lib/tsi/test_creds/ca.pem")
 		if err != nil {
 			t.Fatal(err)
 		}
diff --git a/tools/run_tests/run_tests.py b/tools/run_tests/run_tests.py
index dc11c0b..a943804 100755
--- a/tools/run_tests/run_tests.py
+++ b/tools/run_tests/run_tests.py
@@ -183,7 +183,7 @@
                                               shortname='%s:%s' % (binary, test),
                                               cpu_cost=target['cpu_cost'],
                                               environ={'GRPC_DEFAULT_SSL_ROOTS_FILE_PATH':
-                                                       _ROOT + '/src/core/tsi/test_creds/ca.pem'}))
+                                                       _ROOT + '/src/core/lib/tsi/test_creds/ca.pem'}))
         else:
           cmdline = [binary] + target['args']
           out.append(self.config.job_spec(cmdline, [binary],
@@ -191,7 +191,7 @@
                                           cpu_cost=target['cpu_cost'],
                                           flaky=target.get('flaky', False),
                                           environ={'GRPC_DEFAULT_SSL_ROOTS_FILE_PATH':
-                                                   _ROOT + '/src/core/tsi/test_creds/ca.pem'}))
+                                                   _ROOT + '/src/core/lib/tsi/test_creds/ca.pem'}))
       elif self.args.regex == '.*' or self.platform == 'windows':
         print '\nWARNING: binary not found, skipping', binary
     return sorted(out)
diff --git a/tools/run_tests/sanity/check_sources_and_headers.py b/tools/run_tests/sanity/check_sources_and_headers.py
index 44dc49b..b5f7912 100755
--- a/tools/run_tests/sanity/check_sources_and_headers.py
+++ b/tools/run_tests/sanity/check_sources_and_headers.py
@@ -55,7 +55,7 @@
   for dep in target['deps']:
     if target_has_header(get_target(dep), name):
       return True
-  if name == 'src/core/profiling/stap_probes.h':
+  if name == 'src/core/lib/profiling/stap_probes.h':
     return True
   return False
 
diff --git a/tools/run_tests/sanity/check_submodules.sh b/tools/run_tests/sanity/check_submodules.sh
index 3c6dbb9..630e7fb 100755
--- a/tools/run_tests/sanity/check_submodules.sh
+++ b/tools/run_tests/sanity/check_submodules.sh
@@ -41,7 +41,7 @@
 
 git submodule | awk '{ print $1 }' | sort > $submodules
 cat << EOF | awk '{ print $1 }' | sort > $want_submodules
- 9f897b25800d2f54f5c442ef01a60721aeca6d87 third_party/boringssl (version_for_cocoapods_1.0-67-g9f897b2)
+ 907ae62b9d81121cb86b604f83e6b811a43f7a87 third_party/boringssl (version_for_cocoapods_1.0-72-g907ae62)
  05b155ff59114735ec8cd089f669c4c3d8f59029 third_party/gflags (v2.1.0-45-g05b155f)
  c99458533a9b4c743ed51537e25989ea55944908 third_party/googletest (release-1.7.0)
  f8ac463766281625ad710900479130c7fcb4d63b third_party/nanopb (nanopb-0.3.4-29-gf8ac463)
diff --git a/tools/run_tests/sources_and_headers.json b/tools/run_tests/sources_and_headers.json
index f4136a4..577db93 100644
--- a/tools/run_tests/sources_and_headers.json
+++ b/tools/run_tests/sources_and_headers.json
@@ -923,9 +923,9 @@
     ], 
     "headers": [], 
     "language": "c", 
-    "name": "httpcli_format_request_test", 
+    "name": "http_parser_test", 
     "src": [
-      "test/core/httpcli/format_request_test.c"
+      "test/core/http/parser_test.c"
     ], 
     "third_party": false, 
     "type": "target"
@@ -939,9 +939,9 @@
     ], 
     "headers": [], 
     "language": "c", 
-    "name": "httpcli_parser_test", 
+    "name": "httpcli_format_request_test", 
     "src": [
-      "test/core/httpcli/parser_test.c"
+      "test/core/http/format_request_test.c"
     ], 
     "third_party": false, 
     "type": "target"
@@ -957,7 +957,7 @@
     "language": "c", 
     "name": "httpcli_test", 
     "src": [
-      "test/core/httpcli/httpcli_test.c"
+      "test/core/http/httpcli_test.c"
     ], 
     "third_party": false, 
     "type": "target"
@@ -973,7 +973,7 @@
     "language": "c", 
     "name": "httpscli_test", 
     "src": [
-      "test/core/httpcli/httpscli_test.c"
+      "test/core/http/httpscli_test.c"
     ], 
     "third_party": false, 
     "type": "target"
@@ -2533,6 +2533,19 @@
   {
     "deps": [
       "boringssl", 
+      "boringssl_asn1_test_lib", 
+      "boringssl_test_util"
+    ], 
+    "headers": [], 
+    "language": "c++", 
+    "name": "boringssl_asn1_test", 
+    "src": [], 
+    "third_party": true, 
+    "type": "target"
+  }, 
+  {
+    "deps": [
+      "boringssl", 
       "boringssl_base64_test_lib", 
       "boringssl_test_util"
     ], 
@@ -3418,23 +3431,6 @@
     ], 
     "headers": [], 
     "language": "c", 
-    "name": "h2_uchannel_test", 
-    "src": [
-      "test/core/end2end/fixtures/h2_uchannel.c"
-    ], 
-    "third_party": false, 
-    "type": "target"
-  }, 
-  {
-    "deps": [
-      "end2end_tests", 
-      "gpr", 
-      "gpr_test_util", 
-      "grpc", 
-      "grpc_test_util"
-    ], 
-    "headers": [], 
-    "language": "c", 
     "name": "h2_uds_test", 
     "src": [
       "test/core/end2end/fixtures/h2_uds.c"
@@ -3605,23 +3601,6 @@
     ], 
     "headers": [], 
     "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "src": [
-      "test/core/end2end/fixtures/h2_uchannel.c"
-    ], 
-    "third_party": false, 
-    "type": "target"
-  }, 
-  {
-    "deps": [
-      "end2end_nosec_tests", 
-      "gpr", 
-      "gpr_test_util", 
-      "grpc_test_util_unsecure", 
-      "grpc_unsecure"
-    ], 
-    "headers": [], 
-    "language": "c", 
     "name": "h2_uds_nosec_test", 
     "src": [
       "test/core/end2end/fixtures/h2_uds.c"
@@ -3674,18 +3653,18 @@
       "include/grpc/support/tls_msvc.h", 
       "include/grpc/support/tls_pthread.h", 
       "include/grpc/support/useful.h", 
-      "src/core/profiling/timers.h", 
-      "src/core/support/backoff.h", 
-      "src/core/support/block_annotate.h", 
-      "src/core/support/env.h", 
-      "src/core/support/load_file.h", 
-      "src/core/support/murmur_hash.h", 
-      "src/core/support/stack_lockfree.h", 
-      "src/core/support/string.h", 
-      "src/core/support/string_win32.h", 
-      "src/core/support/thd_internal.h", 
-      "src/core/support/time_precise.h", 
-      "src/core/support/tmpfile.h"
+      "src/core/lib/profiling/timers.h", 
+      "src/core/lib/support/backoff.h", 
+      "src/core/lib/support/block_annotate.h", 
+      "src/core/lib/support/env.h", 
+      "src/core/lib/support/load_file.h", 
+      "src/core/lib/support/murmur_hash.h", 
+      "src/core/lib/support/stack_lockfree.h", 
+      "src/core/lib/support/string.h", 
+      "src/core/lib/support/string_win32.h", 
+      "src/core/lib/support/thd_internal.h", 
+      "src/core/lib/support/time_precise.h", 
+      "src/core/lib/support/tmpfile.h"
     ], 
     "language": "c", 
     "name": "gpr", 
@@ -3732,62 +3711,62 @@
       "include/grpc/support/tls_msvc.h", 
       "include/grpc/support/tls_pthread.h", 
       "include/grpc/support/useful.h", 
-      "src/core/profiling/basic_timers.c", 
-      "src/core/profiling/stap_timers.c", 
-      "src/core/profiling/timers.h", 
-      "src/core/support/alloc.c", 
-      "src/core/support/avl.c", 
-      "src/core/support/backoff.c", 
-      "src/core/support/backoff.h", 
-      "src/core/support/block_annotate.h", 
-      "src/core/support/cmdline.c", 
-      "src/core/support/cpu_iphone.c", 
-      "src/core/support/cpu_linux.c", 
-      "src/core/support/cpu_posix.c", 
-      "src/core/support/cpu_windows.c", 
-      "src/core/support/env.h", 
-      "src/core/support/env_linux.c", 
-      "src/core/support/env_posix.c", 
-      "src/core/support/env_win32.c", 
-      "src/core/support/histogram.c", 
-      "src/core/support/host_port.c", 
-      "src/core/support/load_file.c", 
-      "src/core/support/load_file.h", 
-      "src/core/support/log.c", 
-      "src/core/support/log_android.c", 
-      "src/core/support/log_linux.c", 
-      "src/core/support/log_posix.c", 
-      "src/core/support/log_win32.c", 
-      "src/core/support/murmur_hash.c", 
-      "src/core/support/murmur_hash.h", 
-      "src/core/support/slice.c", 
-      "src/core/support/slice_buffer.c", 
-      "src/core/support/stack_lockfree.c", 
-      "src/core/support/stack_lockfree.h", 
-      "src/core/support/string.c", 
-      "src/core/support/string.h", 
-      "src/core/support/string_posix.c", 
-      "src/core/support/string_win32.c", 
-      "src/core/support/string_win32.h", 
-      "src/core/support/subprocess_posix.c", 
-      "src/core/support/subprocess_windows.c", 
-      "src/core/support/sync.c", 
-      "src/core/support/sync_posix.c", 
-      "src/core/support/sync_win32.c", 
-      "src/core/support/thd.c", 
-      "src/core/support/thd_internal.h", 
-      "src/core/support/thd_posix.c", 
-      "src/core/support/thd_win32.c", 
-      "src/core/support/time.c", 
-      "src/core/support/time_posix.c", 
-      "src/core/support/time_precise.c", 
-      "src/core/support/time_precise.h", 
-      "src/core/support/time_win32.c", 
-      "src/core/support/tls_pthread.c", 
-      "src/core/support/tmpfile.h", 
-      "src/core/support/tmpfile_posix.c", 
-      "src/core/support/tmpfile_win32.c", 
-      "src/core/support/wrap_memcpy.c"
+      "src/core/lib/profiling/basic_timers.c", 
+      "src/core/lib/profiling/stap_timers.c", 
+      "src/core/lib/profiling/timers.h", 
+      "src/core/lib/support/alloc.c", 
+      "src/core/lib/support/avl.c", 
+      "src/core/lib/support/backoff.c", 
+      "src/core/lib/support/backoff.h", 
+      "src/core/lib/support/block_annotate.h", 
+      "src/core/lib/support/cmdline.c", 
+      "src/core/lib/support/cpu_iphone.c", 
+      "src/core/lib/support/cpu_linux.c", 
+      "src/core/lib/support/cpu_posix.c", 
+      "src/core/lib/support/cpu_windows.c", 
+      "src/core/lib/support/env.h", 
+      "src/core/lib/support/env_linux.c", 
+      "src/core/lib/support/env_posix.c", 
+      "src/core/lib/support/env_win32.c", 
+      "src/core/lib/support/histogram.c", 
+      "src/core/lib/support/host_port.c", 
+      "src/core/lib/support/load_file.c", 
+      "src/core/lib/support/load_file.h", 
+      "src/core/lib/support/log.c", 
+      "src/core/lib/support/log_android.c", 
+      "src/core/lib/support/log_linux.c", 
+      "src/core/lib/support/log_posix.c", 
+      "src/core/lib/support/log_win32.c", 
+      "src/core/lib/support/murmur_hash.c", 
+      "src/core/lib/support/murmur_hash.h", 
+      "src/core/lib/support/slice.c", 
+      "src/core/lib/support/slice_buffer.c", 
+      "src/core/lib/support/stack_lockfree.c", 
+      "src/core/lib/support/stack_lockfree.h", 
+      "src/core/lib/support/string.c", 
+      "src/core/lib/support/string.h", 
+      "src/core/lib/support/string_posix.c", 
+      "src/core/lib/support/string_win32.c", 
+      "src/core/lib/support/string_win32.h", 
+      "src/core/lib/support/subprocess_posix.c", 
+      "src/core/lib/support/subprocess_windows.c", 
+      "src/core/lib/support/sync.c", 
+      "src/core/lib/support/sync_posix.c", 
+      "src/core/lib/support/sync_win32.c", 
+      "src/core/lib/support/thd.c", 
+      "src/core/lib/support/thd_internal.h", 
+      "src/core/lib/support/thd_posix.c", 
+      "src/core/lib/support/thd_win32.c", 
+      "src/core/lib/support/time.c", 
+      "src/core/lib/support/time_posix.c", 
+      "src/core/lib/support/time_precise.c", 
+      "src/core/lib/support/time_precise.h", 
+      "src/core/lib/support/time_win32.c", 
+      "src/core/lib/support/tls_pthread.c", 
+      "src/core/lib/support/tmpfile.h", 
+      "src/core/lib/support/tmpfile_posix.c", 
+      "src/core/lib/support/tmpfile_win32.c", 
+      "src/core/lib/support/wrap_memcpy.c"
     ], 
     "third_party": false, 
     "type": "lib"
@@ -3826,142 +3805,144 @@
       "include/grpc/impl/codegen/propagation_bits.h", 
       "include/grpc/impl/codegen/status.h", 
       "include/grpc/status.h", 
-      "src/core/census/aggregation.h", 
-      "src/core/census/grpc_filter.h", 
-      "src/core/census/grpc_plugin.h", 
-      "src/core/census/mlog.h", 
-      "src/core/census/rpc_metric_id.h", 
-      "src/core/channel/channel_args.h", 
-      "src/core/channel/channel_stack.h", 
-      "src/core/channel/channel_stack_builder.h", 
-      "src/core/channel/client_channel.h", 
-      "src/core/channel/client_uchannel.h", 
-      "src/core/channel/compress_filter.h", 
-      "src/core/channel/connected_channel.h", 
-      "src/core/channel/context.h", 
-      "src/core/channel/http_client_filter.h", 
-      "src/core/channel/http_server_filter.h", 
-      "src/core/channel/subchannel_call_holder.h", 
-      "src/core/client_config/client_config.h", 
-      "src/core/client_config/connector.h", 
-      "src/core/client_config/initial_connect_string.h", 
-      "src/core/client_config/lb_policies/load_balancer_api.h", 
-      "src/core/client_config/lb_policies/pick_first.h", 
-      "src/core/client_config/lb_policies/round_robin.h", 
-      "src/core/client_config/lb_policy.h", 
-      "src/core/client_config/lb_policy_factory.h", 
-      "src/core/client_config/lb_policy_registry.h", 
-      "src/core/client_config/resolver.h", 
-      "src/core/client_config/resolver_factory.h", 
-      "src/core/client_config/resolver_registry.h", 
-      "src/core/client_config/resolvers/dns_resolver.h", 
-      "src/core/client_config/resolvers/sockaddr_resolver.h", 
-      "src/core/client_config/subchannel.h", 
-      "src/core/client_config/subchannel_factory.h", 
-      "src/core/client_config/subchannel_index.h", 
-      "src/core/client_config/uri_parser.h", 
-      "src/core/compression/algorithm_metadata.h", 
-      "src/core/compression/message_compress.h", 
-      "src/core/debug/trace.h", 
-      "src/core/httpcli/format_request.h", 
-      "src/core/httpcli/httpcli.h", 
-      "src/core/httpcli/parser.h", 
-      "src/core/iomgr/closure.h", 
-      "src/core/iomgr/endpoint.h", 
-      "src/core/iomgr/endpoint_pair.h", 
-      "src/core/iomgr/ev_poll_and_epoll_posix.h", 
-      "src/core/iomgr/ev_posix.h", 
-      "src/core/iomgr/exec_ctx.h", 
-      "src/core/iomgr/executor.h", 
-      "src/core/iomgr/iocp_windows.h", 
-      "src/core/iomgr/iomgr.h", 
-      "src/core/iomgr/iomgr_internal.h", 
-      "src/core/iomgr/iomgr_posix.h", 
-      "src/core/iomgr/pollset.h", 
-      "src/core/iomgr/pollset_set.h", 
-      "src/core/iomgr/pollset_set_windows.h", 
-      "src/core/iomgr/pollset_windows.h", 
-      "src/core/iomgr/resolve_address.h", 
-      "src/core/iomgr/sockaddr.h", 
-      "src/core/iomgr/sockaddr_posix.h", 
-      "src/core/iomgr/sockaddr_utils.h", 
-      "src/core/iomgr/sockaddr_win32.h", 
-      "src/core/iomgr/socket_utils_posix.h", 
-      "src/core/iomgr/socket_windows.h", 
-      "src/core/iomgr/tcp_client.h", 
-      "src/core/iomgr/tcp_posix.h", 
-      "src/core/iomgr/tcp_server.h", 
-      "src/core/iomgr/tcp_windows.h", 
-      "src/core/iomgr/time_averaged_stats.h", 
-      "src/core/iomgr/timer.h", 
-      "src/core/iomgr/timer_heap.h", 
-      "src/core/iomgr/udp_server.h", 
-      "src/core/iomgr/wakeup_fd_pipe.h", 
-      "src/core/iomgr/wakeup_fd_posix.h", 
-      "src/core/iomgr/workqueue.h", 
-      "src/core/iomgr/workqueue_posix.h", 
-      "src/core/iomgr/workqueue_windows.h", 
-      "src/core/json/json.h", 
-      "src/core/json/json_common.h", 
-      "src/core/json/json_reader.h", 
-      "src/core/json/json_writer.h", 
-      "src/core/proto/grpc/lb/v0/load_balancer.pb.h", 
-      "src/core/security/auth_filters.h", 
-      "src/core/security/b64.h", 
-      "src/core/security/credentials.h", 
-      "src/core/security/handshake.h", 
-      "src/core/security/json_token.h", 
-      "src/core/security/jwt_verifier.h", 
-      "src/core/security/secure_endpoint.h", 
-      "src/core/security/security_connector.h", 
-      "src/core/security/security_context.h", 
-      "src/core/statistics/census_interface.h", 
-      "src/core/statistics/census_rpc_stats.h", 
-      "src/core/surface/api_trace.h", 
-      "src/core/surface/call.h", 
-      "src/core/surface/call_test_only.h", 
-      "src/core/surface/channel.h", 
-      "src/core/surface/channel_init.h", 
-      "src/core/surface/channel_stack_type.h", 
-      "src/core/surface/completion_queue.h", 
-      "src/core/surface/event_string.h", 
-      "src/core/surface/init.h", 
-      "src/core/surface/lame_client.h", 
-      "src/core/surface/server.h", 
-      "src/core/surface/surface_trace.h", 
-      "src/core/transport/byte_stream.h", 
-      "src/core/transport/chttp2/alpn.h", 
-      "src/core/transport/chttp2/bin_encoder.h", 
-      "src/core/transport/chttp2/frame.h", 
-      "src/core/transport/chttp2/frame_data.h", 
-      "src/core/transport/chttp2/frame_goaway.h", 
-      "src/core/transport/chttp2/frame_ping.h", 
-      "src/core/transport/chttp2/frame_rst_stream.h", 
-      "src/core/transport/chttp2/frame_settings.h", 
-      "src/core/transport/chttp2/frame_window_update.h", 
-      "src/core/transport/chttp2/hpack_encoder.h", 
-      "src/core/transport/chttp2/hpack_parser.h", 
-      "src/core/transport/chttp2/hpack_table.h", 
-      "src/core/transport/chttp2/http2_errors.h", 
-      "src/core/transport/chttp2/huffsyms.h", 
-      "src/core/transport/chttp2/incoming_metadata.h", 
-      "src/core/transport/chttp2/internal.h", 
-      "src/core/transport/chttp2/status_conversion.h", 
-      "src/core/transport/chttp2/stream_map.h", 
-      "src/core/transport/chttp2/timeout_encoding.h", 
-      "src/core/transport/chttp2/varint.h", 
-      "src/core/transport/chttp2_transport.h", 
-      "src/core/transport/connectivity_state.h", 
-      "src/core/transport/metadata.h", 
-      "src/core/transport/metadata_batch.h", 
-      "src/core/transport/static_metadata.h", 
-      "src/core/transport/transport.h", 
-      "src/core/transport/transport_impl.h", 
-      "src/core/tsi/fake_transport_security.h", 
-      "src/core/tsi/ssl_transport_security.h", 
-      "src/core/tsi/ssl_types.h", 
-      "src/core/tsi/transport_security.h", 
-      "src/core/tsi/transport_security_interface.h", 
+      "src/core/lib/census/aggregation.h", 
+      "src/core/lib/census/grpc_filter.h", 
+      "src/core/lib/census/grpc_plugin.h", 
+      "src/core/lib/census/mlog.h", 
+      "src/core/lib/census/rpc_metric_id.h", 
+      "src/core/lib/channel/channel_args.h", 
+      "src/core/lib/channel/channel_stack.h", 
+      "src/core/lib/channel/channel_stack_builder.h", 
+      "src/core/lib/channel/client_channel.h", 
+      "src/core/lib/channel/compress_filter.h", 
+      "src/core/lib/channel/connected_channel.h", 
+      "src/core/lib/channel/context.h", 
+      "src/core/lib/channel/http_client_filter.h", 
+      "src/core/lib/channel/http_server_filter.h", 
+      "src/core/lib/channel/subchannel_call_holder.h", 
+      "src/core/lib/client_config/client_config.h", 
+      "src/core/lib/client_config/connector.h", 
+      "src/core/lib/client_config/initial_connect_string.h", 
+      "src/core/lib/client_config/lb_policies/load_balancer_api.h", 
+      "src/core/lib/client_config/lb_policies/pick_first.h", 
+      "src/core/lib/client_config/lb_policies/round_robin.h", 
+      "src/core/lib/client_config/lb_policy.h", 
+      "src/core/lib/client_config/lb_policy_factory.h", 
+      "src/core/lib/client_config/lb_policy_registry.h", 
+      "src/core/lib/client_config/resolver.h", 
+      "src/core/lib/client_config/resolver_factory.h", 
+      "src/core/lib/client_config/resolver_registry.h", 
+      "src/core/lib/client_config/resolvers/dns_resolver.h", 
+      "src/core/lib/client_config/resolvers/sockaddr_resolver.h", 
+      "src/core/lib/client_config/subchannel.h", 
+      "src/core/lib/client_config/subchannel_factory.h", 
+      "src/core/lib/client_config/subchannel_index.h", 
+      "src/core/lib/client_config/uri_parser.h", 
+      "src/core/lib/compression/algorithm_metadata.h", 
+      "src/core/lib/compression/message_compress.h", 
+      "src/core/lib/debug/trace.h", 
+      "src/core/lib/http/format_request.h", 
+      "src/core/lib/http/httpcli.h", 
+      "src/core/lib/http/parser.h", 
+      "src/core/lib/iomgr/closure.h", 
+      "src/core/lib/iomgr/endpoint.h", 
+      "src/core/lib/iomgr/endpoint_pair.h", 
+      "src/core/lib/iomgr/ev_poll_and_epoll_posix.h", 
+      "src/core/lib/iomgr/ev_posix.h", 
+      "src/core/lib/iomgr/exec_ctx.h", 
+      "src/core/lib/iomgr/executor.h", 
+      "src/core/lib/iomgr/iocp_windows.h", 
+      "src/core/lib/iomgr/iomgr.h", 
+      "src/core/lib/iomgr/iomgr_internal.h", 
+      "src/core/lib/iomgr/iomgr_posix.h", 
+      "src/core/lib/iomgr/pollset.h", 
+      "src/core/lib/iomgr/pollset_posix.h", 
+      "src/core/lib/iomgr/pollset_set.h", 
+      "src/core/lib/iomgr/pollset_set_posix.h", 
+      "src/core/lib/iomgr/pollset_set_windows.h", 
+      "src/core/lib/iomgr/pollset_windows.h", 
+      "src/core/lib/iomgr/resolve_address.h", 
+      "src/core/lib/iomgr/sockaddr.h", 
+      "src/core/lib/iomgr/sockaddr_posix.h", 
+      "src/core/lib/iomgr/sockaddr_utils.h", 
+      "src/core/lib/iomgr/sockaddr_win32.h", 
+      "src/core/lib/iomgr/socket_utils_posix.h", 
+      "src/core/lib/iomgr/socket_windows.h", 
+      "src/core/lib/iomgr/tcp_client.h", 
+      "src/core/lib/iomgr/tcp_posix.h", 
+      "src/core/lib/iomgr/tcp_server.h", 
+      "src/core/lib/iomgr/tcp_windows.h", 
+      "src/core/lib/iomgr/time_averaged_stats.h", 
+      "src/core/lib/iomgr/timer.h", 
+      "src/core/lib/iomgr/timer_heap.h", 
+      "src/core/lib/iomgr/udp_server.h", 
+      "src/core/lib/iomgr/unix_sockets_posix.h", 
+      "src/core/lib/iomgr/wakeup_fd_pipe.h", 
+      "src/core/lib/iomgr/wakeup_fd_posix.h", 
+      "src/core/lib/iomgr/workqueue.h", 
+      "src/core/lib/iomgr/workqueue_posix.h", 
+      "src/core/lib/iomgr/workqueue_windows.h", 
+      "src/core/lib/json/json.h", 
+      "src/core/lib/json/json_common.h", 
+      "src/core/lib/json/json_reader.h", 
+      "src/core/lib/json/json_writer.h", 
+      "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h", 
+      "src/core/lib/security/auth_filters.h", 
+      "src/core/lib/security/b64.h", 
+      "src/core/lib/security/credentials.h", 
+      "src/core/lib/security/handshake.h", 
+      "src/core/lib/security/json_token.h", 
+      "src/core/lib/security/jwt_verifier.h", 
+      "src/core/lib/security/secure_endpoint.h", 
+      "src/core/lib/security/security_connector.h", 
+      "src/core/lib/security/security_context.h", 
+      "src/core/lib/statistics/census_interface.h", 
+      "src/core/lib/statistics/census_rpc_stats.h", 
+      "src/core/lib/surface/api_trace.h", 
+      "src/core/lib/surface/call.h", 
+      "src/core/lib/surface/call_test_only.h", 
+      "src/core/lib/surface/channel.h", 
+      "src/core/lib/surface/channel_init.h", 
+      "src/core/lib/surface/channel_stack_type.h", 
+      "src/core/lib/surface/completion_queue.h", 
+      "src/core/lib/surface/event_string.h", 
+      "src/core/lib/surface/init.h", 
+      "src/core/lib/surface/lame_client.h", 
+      "src/core/lib/surface/server.h", 
+      "src/core/lib/surface/surface_trace.h", 
+      "src/core/lib/transport/byte_stream.h", 
+      "src/core/lib/transport/chttp2/alpn.h", 
+      "src/core/lib/transport/chttp2/bin_encoder.h", 
+      "src/core/lib/transport/chttp2/frame.h", 
+      "src/core/lib/transport/chttp2/frame_data.h", 
+      "src/core/lib/transport/chttp2/frame_goaway.h", 
+      "src/core/lib/transport/chttp2/frame_ping.h", 
+      "src/core/lib/transport/chttp2/frame_rst_stream.h", 
+      "src/core/lib/transport/chttp2/frame_settings.h", 
+      "src/core/lib/transport/chttp2/frame_window_update.h", 
+      "src/core/lib/transport/chttp2/hpack_encoder.h", 
+      "src/core/lib/transport/chttp2/hpack_parser.h", 
+      "src/core/lib/transport/chttp2/hpack_table.h", 
+      "src/core/lib/transport/chttp2/http2_errors.h", 
+      "src/core/lib/transport/chttp2/huffsyms.h", 
+      "src/core/lib/transport/chttp2/incoming_metadata.h", 
+      "src/core/lib/transport/chttp2/internal.h", 
+      "src/core/lib/transport/chttp2/status_conversion.h", 
+      "src/core/lib/transport/chttp2/stream_map.h", 
+      "src/core/lib/transport/chttp2/timeout_encoding.h", 
+      "src/core/lib/transport/chttp2/varint.h", 
+      "src/core/lib/transport/chttp2_transport.h", 
+      "src/core/lib/transport/connectivity_state.h", 
+      "src/core/lib/transport/metadata.h", 
+      "src/core/lib/transport/metadata_batch.h", 
+      "src/core/lib/transport/static_metadata.h", 
+      "src/core/lib/transport/transport.h", 
+      "src/core/lib/transport/transport_impl.h", 
+      "src/core/lib/tsi/fake_transport_security.h", 
+      "src/core/lib/tsi/ssl_transport_security.h", 
+      "src/core/lib/tsi/ssl_types.h", 
+      "src/core/lib/tsi/transport_security.h", 
+      "src/core/lib/tsi/transport_security_interface.h", 
       "third_party/nanopb/pb.h", 
       "third_party/nanopb/pb_common.h", 
       "third_party/nanopb/pb_decode.h", 
@@ -3983,299 +3964,302 @@
       "include/grpc/impl/codegen/propagation_bits.h", 
       "include/grpc/impl/codegen/status.h", 
       "include/grpc/status.h", 
-      "src/core/census/aggregation.h", 
-      "src/core/census/context.c", 
-      "src/core/census/grpc_context.c", 
-      "src/core/census/grpc_filter.c", 
-      "src/core/census/grpc_filter.h", 
-      "src/core/census/grpc_plugin.c", 
-      "src/core/census/grpc_plugin.h", 
-      "src/core/census/initialize.c", 
-      "src/core/census/mlog.c", 
-      "src/core/census/mlog.h", 
-      "src/core/census/operation.c", 
-      "src/core/census/placeholders.c", 
-      "src/core/census/rpc_metric_id.h", 
-      "src/core/census/tracing.c", 
-      "src/core/channel/channel_args.c", 
-      "src/core/channel/channel_args.h", 
-      "src/core/channel/channel_stack.c", 
-      "src/core/channel/channel_stack.h", 
-      "src/core/channel/channel_stack_builder.c", 
-      "src/core/channel/channel_stack_builder.h", 
-      "src/core/channel/client_channel.c", 
-      "src/core/channel/client_channel.h", 
-      "src/core/channel/client_uchannel.c", 
-      "src/core/channel/client_uchannel.h", 
-      "src/core/channel/compress_filter.c", 
-      "src/core/channel/compress_filter.h", 
-      "src/core/channel/connected_channel.c", 
-      "src/core/channel/connected_channel.h", 
-      "src/core/channel/context.h", 
-      "src/core/channel/http_client_filter.c", 
-      "src/core/channel/http_client_filter.h", 
-      "src/core/channel/http_server_filter.c", 
-      "src/core/channel/http_server_filter.h", 
-      "src/core/channel/subchannel_call_holder.c", 
-      "src/core/channel/subchannel_call_holder.h", 
-      "src/core/client_config/client_config.c", 
-      "src/core/client_config/client_config.h", 
-      "src/core/client_config/connector.c", 
-      "src/core/client_config/connector.h", 
-      "src/core/client_config/default_initial_connect_string.c", 
-      "src/core/client_config/initial_connect_string.c", 
-      "src/core/client_config/initial_connect_string.h", 
-      "src/core/client_config/lb_policies/load_balancer_api.c", 
-      "src/core/client_config/lb_policies/load_balancer_api.h", 
-      "src/core/client_config/lb_policies/pick_first.c", 
-      "src/core/client_config/lb_policies/pick_first.h", 
-      "src/core/client_config/lb_policies/round_robin.c", 
-      "src/core/client_config/lb_policies/round_robin.h", 
-      "src/core/client_config/lb_policy.c", 
-      "src/core/client_config/lb_policy.h", 
-      "src/core/client_config/lb_policy_factory.c", 
-      "src/core/client_config/lb_policy_factory.h", 
-      "src/core/client_config/lb_policy_registry.c", 
-      "src/core/client_config/lb_policy_registry.h", 
-      "src/core/client_config/resolver.c", 
-      "src/core/client_config/resolver.h", 
-      "src/core/client_config/resolver_factory.c", 
-      "src/core/client_config/resolver_factory.h", 
-      "src/core/client_config/resolver_registry.c", 
-      "src/core/client_config/resolver_registry.h", 
-      "src/core/client_config/resolvers/dns_resolver.c", 
-      "src/core/client_config/resolvers/dns_resolver.h", 
-      "src/core/client_config/resolvers/sockaddr_resolver.c", 
-      "src/core/client_config/resolvers/sockaddr_resolver.h", 
-      "src/core/client_config/subchannel.c", 
-      "src/core/client_config/subchannel.h", 
-      "src/core/client_config/subchannel_factory.c", 
-      "src/core/client_config/subchannel_factory.h", 
-      "src/core/client_config/subchannel_index.c", 
-      "src/core/client_config/subchannel_index.h", 
-      "src/core/client_config/uri_parser.c", 
-      "src/core/client_config/uri_parser.h", 
-      "src/core/compression/algorithm_metadata.h", 
-      "src/core/compression/compression_algorithm.c", 
-      "src/core/compression/message_compress.c", 
-      "src/core/compression/message_compress.h", 
-      "src/core/debug/trace.c", 
-      "src/core/debug/trace.h", 
-      "src/core/httpcli/format_request.c", 
-      "src/core/httpcli/format_request.h", 
-      "src/core/httpcli/httpcli.c", 
-      "src/core/httpcli/httpcli.h", 
-      "src/core/httpcli/httpcli_security_connector.c", 
-      "src/core/httpcli/parser.c", 
-      "src/core/httpcli/parser.h", 
-      "src/core/iomgr/closure.c", 
-      "src/core/iomgr/closure.h", 
-      "src/core/iomgr/endpoint.c", 
-      "src/core/iomgr/endpoint.h", 
-      "src/core/iomgr/endpoint_pair.h", 
-      "src/core/iomgr/endpoint_pair_posix.c", 
-      "src/core/iomgr/endpoint_pair_windows.c", 
-      "src/core/iomgr/ev_poll_and_epoll_posix.c", 
-      "src/core/iomgr/ev_poll_and_epoll_posix.h", 
-      "src/core/iomgr/ev_posix.c", 
-      "src/core/iomgr/ev_posix.h", 
-      "src/core/iomgr/exec_ctx.c", 
-      "src/core/iomgr/exec_ctx.h", 
-      "src/core/iomgr/executor.c", 
-      "src/core/iomgr/executor.h", 
-      "src/core/iomgr/iocp_windows.c", 
-      "src/core/iomgr/iocp_windows.h", 
-      "src/core/iomgr/iomgr.c", 
-      "src/core/iomgr/iomgr.h", 
-      "src/core/iomgr/iomgr_internal.h", 
-      "src/core/iomgr/iomgr_posix.c", 
-      "src/core/iomgr/iomgr_posix.h", 
-      "src/core/iomgr/iomgr_windows.c", 
-      "src/core/iomgr/pollset.h", 
-      "src/core/iomgr/pollset_set.h", 
-      "src/core/iomgr/pollset_set_windows.c", 
-      "src/core/iomgr/pollset_set_windows.h", 
-      "src/core/iomgr/pollset_windows.c", 
-      "src/core/iomgr/pollset_windows.h", 
-      "src/core/iomgr/resolve_address.h", 
-      "src/core/iomgr/resolve_address_posix.c", 
-      "src/core/iomgr/resolve_address_windows.c", 
-      "src/core/iomgr/sockaddr.h", 
-      "src/core/iomgr/sockaddr_posix.h", 
-      "src/core/iomgr/sockaddr_utils.c", 
-      "src/core/iomgr/sockaddr_utils.h", 
-      "src/core/iomgr/sockaddr_win32.h", 
-      "src/core/iomgr/socket_utils_common_posix.c", 
-      "src/core/iomgr/socket_utils_linux.c", 
-      "src/core/iomgr/socket_utils_posix.c", 
-      "src/core/iomgr/socket_utils_posix.h", 
-      "src/core/iomgr/socket_windows.c", 
-      "src/core/iomgr/socket_windows.h", 
-      "src/core/iomgr/tcp_client.h", 
-      "src/core/iomgr/tcp_client_posix.c", 
-      "src/core/iomgr/tcp_client_windows.c", 
-      "src/core/iomgr/tcp_posix.c", 
-      "src/core/iomgr/tcp_posix.h", 
-      "src/core/iomgr/tcp_server.h", 
-      "src/core/iomgr/tcp_server_posix.c", 
-      "src/core/iomgr/tcp_server_windows.c", 
-      "src/core/iomgr/tcp_windows.c", 
-      "src/core/iomgr/tcp_windows.h", 
-      "src/core/iomgr/time_averaged_stats.c", 
-      "src/core/iomgr/time_averaged_stats.h", 
-      "src/core/iomgr/timer.c", 
-      "src/core/iomgr/timer.h", 
-      "src/core/iomgr/timer_heap.c", 
-      "src/core/iomgr/timer_heap.h", 
-      "src/core/iomgr/udp_server.c", 
-      "src/core/iomgr/udp_server.h", 
-      "src/core/iomgr/wakeup_fd_eventfd.c", 
-      "src/core/iomgr/wakeup_fd_nospecial.c", 
-      "src/core/iomgr/wakeup_fd_pipe.c", 
-      "src/core/iomgr/wakeup_fd_pipe.h", 
-      "src/core/iomgr/wakeup_fd_posix.c", 
-      "src/core/iomgr/wakeup_fd_posix.h", 
-      "src/core/iomgr/workqueue.h", 
-      "src/core/iomgr/workqueue_posix.c", 
-      "src/core/iomgr/workqueue_posix.h", 
-      "src/core/iomgr/workqueue_windows.c", 
-      "src/core/iomgr/workqueue_windows.h", 
-      "src/core/json/json.c", 
-      "src/core/json/json.h", 
-      "src/core/json/json_common.h", 
-      "src/core/json/json_reader.c", 
-      "src/core/json/json_reader.h", 
-      "src/core/json/json_string.c", 
-      "src/core/json/json_writer.c", 
-      "src/core/json/json_writer.h", 
-      "src/core/proto/grpc/lb/v0/load_balancer.pb.c", 
-      "src/core/proto/grpc/lb/v0/load_balancer.pb.h", 
-      "src/core/security/auth_filters.h", 
-      "src/core/security/b64.c", 
-      "src/core/security/b64.h", 
-      "src/core/security/client_auth_filter.c", 
-      "src/core/security/credentials.c", 
-      "src/core/security/credentials.h", 
-      "src/core/security/credentials_metadata.c", 
-      "src/core/security/credentials_posix.c", 
-      "src/core/security/credentials_win32.c", 
-      "src/core/security/google_default_credentials.c", 
-      "src/core/security/handshake.c", 
-      "src/core/security/handshake.h", 
-      "src/core/security/json_token.c", 
-      "src/core/security/json_token.h", 
-      "src/core/security/jwt_verifier.c", 
-      "src/core/security/jwt_verifier.h", 
-      "src/core/security/secure_endpoint.c", 
-      "src/core/security/secure_endpoint.h", 
-      "src/core/security/security_connector.c", 
-      "src/core/security/security_connector.h", 
-      "src/core/security/security_context.c", 
-      "src/core/security/security_context.h", 
-      "src/core/security/server_auth_filter.c", 
-      "src/core/security/server_secure_chttp2.c", 
-      "src/core/statistics/census_interface.h", 
-      "src/core/statistics/census_rpc_stats.h", 
-      "src/core/surface/alarm.c", 
-      "src/core/surface/api_trace.c", 
-      "src/core/surface/api_trace.h", 
-      "src/core/surface/byte_buffer.c", 
-      "src/core/surface/byte_buffer_reader.c", 
-      "src/core/surface/call.c", 
-      "src/core/surface/call.h", 
-      "src/core/surface/call_details.c", 
-      "src/core/surface/call_log_batch.c", 
-      "src/core/surface/call_test_only.h", 
-      "src/core/surface/channel.c", 
-      "src/core/surface/channel.h", 
-      "src/core/surface/channel_connectivity.c", 
-      "src/core/surface/channel_create.c", 
-      "src/core/surface/channel_init.c", 
-      "src/core/surface/channel_init.h", 
-      "src/core/surface/channel_ping.c", 
-      "src/core/surface/channel_stack_type.c", 
-      "src/core/surface/channel_stack_type.h", 
-      "src/core/surface/completion_queue.c", 
-      "src/core/surface/completion_queue.h", 
-      "src/core/surface/event_string.c", 
-      "src/core/surface/event_string.h", 
-      "src/core/surface/init.c", 
-      "src/core/surface/init.h", 
-      "src/core/surface/init_secure.c", 
-      "src/core/surface/lame_client.c", 
-      "src/core/surface/lame_client.h", 
-      "src/core/surface/metadata_array.c", 
-      "src/core/surface/secure_channel_create.c", 
-      "src/core/surface/server.c", 
-      "src/core/surface/server.h", 
-      "src/core/surface/server_chttp2.c", 
-      "src/core/surface/surface_trace.h", 
-      "src/core/surface/validate_metadata.c", 
-      "src/core/surface/version.c", 
-      "src/core/transport/byte_stream.c", 
-      "src/core/transport/byte_stream.h", 
-      "src/core/transport/chttp2/alpn.c", 
-      "src/core/transport/chttp2/alpn.h", 
-      "src/core/transport/chttp2/bin_encoder.c", 
-      "src/core/transport/chttp2/bin_encoder.h", 
-      "src/core/transport/chttp2/frame.h", 
-      "src/core/transport/chttp2/frame_data.c", 
-      "src/core/transport/chttp2/frame_data.h", 
-      "src/core/transport/chttp2/frame_goaway.c", 
-      "src/core/transport/chttp2/frame_goaway.h", 
-      "src/core/transport/chttp2/frame_ping.c", 
-      "src/core/transport/chttp2/frame_ping.h", 
-      "src/core/transport/chttp2/frame_rst_stream.c", 
-      "src/core/transport/chttp2/frame_rst_stream.h", 
-      "src/core/transport/chttp2/frame_settings.c", 
-      "src/core/transport/chttp2/frame_settings.h", 
-      "src/core/transport/chttp2/frame_window_update.c", 
-      "src/core/transport/chttp2/frame_window_update.h", 
-      "src/core/transport/chttp2/hpack_encoder.c", 
-      "src/core/transport/chttp2/hpack_encoder.h", 
-      "src/core/transport/chttp2/hpack_parser.c", 
-      "src/core/transport/chttp2/hpack_parser.h", 
-      "src/core/transport/chttp2/hpack_table.c", 
-      "src/core/transport/chttp2/hpack_table.h", 
-      "src/core/transport/chttp2/http2_errors.h", 
-      "src/core/transport/chttp2/huffsyms.c", 
-      "src/core/transport/chttp2/huffsyms.h", 
-      "src/core/transport/chttp2/incoming_metadata.c", 
-      "src/core/transport/chttp2/incoming_metadata.h", 
-      "src/core/transport/chttp2/internal.h", 
-      "src/core/transport/chttp2/parsing.c", 
-      "src/core/transport/chttp2/status_conversion.c", 
-      "src/core/transport/chttp2/status_conversion.h", 
-      "src/core/transport/chttp2/stream_lists.c", 
-      "src/core/transport/chttp2/stream_map.c", 
-      "src/core/transport/chttp2/stream_map.h", 
-      "src/core/transport/chttp2/timeout_encoding.c", 
-      "src/core/transport/chttp2/timeout_encoding.h", 
-      "src/core/transport/chttp2/varint.c", 
-      "src/core/transport/chttp2/varint.h", 
-      "src/core/transport/chttp2/writing.c", 
-      "src/core/transport/chttp2_transport.c", 
-      "src/core/transport/chttp2_transport.h", 
-      "src/core/transport/connectivity_state.c", 
-      "src/core/transport/connectivity_state.h", 
-      "src/core/transport/metadata.c", 
-      "src/core/transport/metadata.h", 
-      "src/core/transport/metadata_batch.c", 
-      "src/core/transport/metadata_batch.h", 
-      "src/core/transport/static_metadata.c", 
-      "src/core/transport/static_metadata.h", 
-      "src/core/transport/transport.c", 
-      "src/core/transport/transport.h", 
-      "src/core/transport/transport_impl.h", 
-      "src/core/transport/transport_op_string.c", 
-      "src/core/tsi/fake_transport_security.c", 
-      "src/core/tsi/fake_transport_security.h", 
-      "src/core/tsi/ssl_transport_security.c", 
-      "src/core/tsi/ssl_transport_security.h", 
-      "src/core/tsi/ssl_types.h", 
-      "src/core/tsi/transport_security.c", 
-      "src/core/tsi/transport_security.h", 
-      "src/core/tsi/transport_security_interface.h"
+      "src/core/lib/census/aggregation.h", 
+      "src/core/lib/census/context.c", 
+      "src/core/lib/census/grpc_context.c", 
+      "src/core/lib/census/grpc_filter.c", 
+      "src/core/lib/census/grpc_filter.h", 
+      "src/core/lib/census/grpc_plugin.c", 
+      "src/core/lib/census/grpc_plugin.h", 
+      "src/core/lib/census/initialize.c", 
+      "src/core/lib/census/mlog.c", 
+      "src/core/lib/census/mlog.h", 
+      "src/core/lib/census/operation.c", 
+      "src/core/lib/census/placeholders.c", 
+      "src/core/lib/census/rpc_metric_id.h", 
+      "src/core/lib/census/tracing.c", 
+      "src/core/lib/channel/channel_args.c", 
+      "src/core/lib/channel/channel_args.h", 
+      "src/core/lib/channel/channel_stack.c", 
+      "src/core/lib/channel/channel_stack.h", 
+      "src/core/lib/channel/channel_stack_builder.c", 
+      "src/core/lib/channel/channel_stack_builder.h", 
+      "src/core/lib/channel/client_channel.c", 
+      "src/core/lib/channel/client_channel.h", 
+      "src/core/lib/channel/compress_filter.c", 
+      "src/core/lib/channel/compress_filter.h", 
+      "src/core/lib/channel/connected_channel.c", 
+      "src/core/lib/channel/connected_channel.h", 
+      "src/core/lib/channel/context.h", 
+      "src/core/lib/channel/http_client_filter.c", 
+      "src/core/lib/channel/http_client_filter.h", 
+      "src/core/lib/channel/http_server_filter.c", 
+      "src/core/lib/channel/http_server_filter.h", 
+      "src/core/lib/channel/subchannel_call_holder.c", 
+      "src/core/lib/channel/subchannel_call_holder.h", 
+      "src/core/lib/client_config/client_config.c", 
+      "src/core/lib/client_config/client_config.h", 
+      "src/core/lib/client_config/connector.c", 
+      "src/core/lib/client_config/connector.h", 
+      "src/core/lib/client_config/default_initial_connect_string.c", 
+      "src/core/lib/client_config/initial_connect_string.c", 
+      "src/core/lib/client_config/initial_connect_string.h", 
+      "src/core/lib/client_config/lb_policies/load_balancer_api.c", 
+      "src/core/lib/client_config/lb_policies/load_balancer_api.h", 
+      "src/core/lib/client_config/lb_policies/pick_first.c", 
+      "src/core/lib/client_config/lb_policies/pick_first.h", 
+      "src/core/lib/client_config/lb_policies/round_robin.c", 
+      "src/core/lib/client_config/lb_policies/round_robin.h", 
+      "src/core/lib/client_config/lb_policy.c", 
+      "src/core/lib/client_config/lb_policy.h", 
+      "src/core/lib/client_config/lb_policy_factory.c", 
+      "src/core/lib/client_config/lb_policy_factory.h", 
+      "src/core/lib/client_config/lb_policy_registry.c", 
+      "src/core/lib/client_config/lb_policy_registry.h", 
+      "src/core/lib/client_config/resolver.c", 
+      "src/core/lib/client_config/resolver.h", 
+      "src/core/lib/client_config/resolver_factory.c", 
+      "src/core/lib/client_config/resolver_factory.h", 
+      "src/core/lib/client_config/resolver_registry.c", 
+      "src/core/lib/client_config/resolver_registry.h", 
+      "src/core/lib/client_config/resolvers/dns_resolver.c", 
+      "src/core/lib/client_config/resolvers/dns_resolver.h", 
+      "src/core/lib/client_config/resolvers/sockaddr_resolver.c", 
+      "src/core/lib/client_config/resolvers/sockaddr_resolver.h", 
+      "src/core/lib/client_config/subchannel.c", 
+      "src/core/lib/client_config/subchannel.h", 
+      "src/core/lib/client_config/subchannel_factory.c", 
+      "src/core/lib/client_config/subchannel_factory.h", 
+      "src/core/lib/client_config/subchannel_index.c", 
+      "src/core/lib/client_config/subchannel_index.h", 
+      "src/core/lib/client_config/uri_parser.c", 
+      "src/core/lib/client_config/uri_parser.h", 
+      "src/core/lib/compression/algorithm_metadata.h", 
+      "src/core/lib/compression/compression_algorithm.c", 
+      "src/core/lib/compression/message_compress.c", 
+      "src/core/lib/compression/message_compress.h", 
+      "src/core/lib/debug/trace.c", 
+      "src/core/lib/debug/trace.h", 
+      "src/core/lib/http/format_request.c", 
+      "src/core/lib/http/format_request.h", 
+      "src/core/lib/http/httpcli.c", 
+      "src/core/lib/http/httpcli.h", 
+      "src/core/lib/http/httpcli_security_connector.c", 
+      "src/core/lib/http/parser.c", 
+      "src/core/lib/http/parser.h", 
+      "src/core/lib/iomgr/closure.c", 
+      "src/core/lib/iomgr/closure.h", 
+      "src/core/lib/iomgr/endpoint.c", 
+      "src/core/lib/iomgr/endpoint.h", 
+      "src/core/lib/iomgr/endpoint_pair.h", 
+      "src/core/lib/iomgr/endpoint_pair_posix.c", 
+      "src/core/lib/iomgr/endpoint_pair_windows.c", 
+      "src/core/lib/iomgr/ev_poll_and_epoll_posix.c", 
+      "src/core/lib/iomgr/ev_poll_and_epoll_posix.h", 
+      "src/core/lib/iomgr/ev_posix.c", 
+      "src/core/lib/iomgr/ev_posix.h", 
+      "src/core/lib/iomgr/exec_ctx.c", 
+      "src/core/lib/iomgr/exec_ctx.h", 
+      "src/core/lib/iomgr/executor.c", 
+      "src/core/lib/iomgr/executor.h", 
+      "src/core/lib/iomgr/iocp_windows.c", 
+      "src/core/lib/iomgr/iocp_windows.h", 
+      "src/core/lib/iomgr/iomgr.c", 
+      "src/core/lib/iomgr/iomgr.h", 
+      "src/core/lib/iomgr/iomgr_internal.h", 
+      "src/core/lib/iomgr/iomgr_posix.c", 
+      "src/core/lib/iomgr/iomgr_posix.h", 
+      "src/core/lib/iomgr/iomgr_windows.c", 
+      "src/core/lib/iomgr/pollset.h", 
+      "src/core/lib/iomgr/pollset_posix.h", 
+      "src/core/lib/iomgr/pollset_set.h", 
+      "src/core/lib/iomgr/pollset_set_posix.h", 
+      "src/core/lib/iomgr/pollset_set_windows.c", 
+      "src/core/lib/iomgr/pollset_set_windows.h", 
+      "src/core/lib/iomgr/pollset_windows.c", 
+      "src/core/lib/iomgr/pollset_windows.h", 
+      "src/core/lib/iomgr/resolve_address.h", 
+      "src/core/lib/iomgr/resolve_address_posix.c", 
+      "src/core/lib/iomgr/resolve_address_windows.c", 
+      "src/core/lib/iomgr/sockaddr.h", 
+      "src/core/lib/iomgr/sockaddr_posix.h", 
+      "src/core/lib/iomgr/sockaddr_utils.c", 
+      "src/core/lib/iomgr/sockaddr_utils.h", 
+      "src/core/lib/iomgr/sockaddr_win32.h", 
+      "src/core/lib/iomgr/socket_utils_common_posix.c", 
+      "src/core/lib/iomgr/socket_utils_linux.c", 
+      "src/core/lib/iomgr/socket_utils_posix.c", 
+      "src/core/lib/iomgr/socket_utils_posix.h", 
+      "src/core/lib/iomgr/socket_windows.c", 
+      "src/core/lib/iomgr/socket_windows.h", 
+      "src/core/lib/iomgr/tcp_client.h", 
+      "src/core/lib/iomgr/tcp_client_posix.c", 
+      "src/core/lib/iomgr/tcp_client_windows.c", 
+      "src/core/lib/iomgr/tcp_posix.c", 
+      "src/core/lib/iomgr/tcp_posix.h", 
+      "src/core/lib/iomgr/tcp_server.h", 
+      "src/core/lib/iomgr/tcp_server_posix.c", 
+      "src/core/lib/iomgr/tcp_server_windows.c", 
+      "src/core/lib/iomgr/tcp_windows.c", 
+      "src/core/lib/iomgr/tcp_windows.h", 
+      "src/core/lib/iomgr/time_averaged_stats.c", 
+      "src/core/lib/iomgr/time_averaged_stats.h", 
+      "src/core/lib/iomgr/timer.c", 
+      "src/core/lib/iomgr/timer.h", 
+      "src/core/lib/iomgr/timer_heap.c", 
+      "src/core/lib/iomgr/timer_heap.h", 
+      "src/core/lib/iomgr/udp_server.c", 
+      "src/core/lib/iomgr/udp_server.h", 
+      "src/core/lib/iomgr/unix_sockets_posix.c", 
+      "src/core/lib/iomgr/unix_sockets_posix.h", 
+      "src/core/lib/iomgr/unix_sockets_posix_noop.c", 
+      "src/core/lib/iomgr/wakeup_fd_eventfd.c", 
+      "src/core/lib/iomgr/wakeup_fd_nospecial.c", 
+      "src/core/lib/iomgr/wakeup_fd_pipe.c", 
+      "src/core/lib/iomgr/wakeup_fd_pipe.h", 
+      "src/core/lib/iomgr/wakeup_fd_posix.c", 
+      "src/core/lib/iomgr/wakeup_fd_posix.h", 
+      "src/core/lib/iomgr/workqueue.h", 
+      "src/core/lib/iomgr/workqueue_posix.c", 
+      "src/core/lib/iomgr/workqueue_posix.h", 
+      "src/core/lib/iomgr/workqueue_windows.c", 
+      "src/core/lib/iomgr/workqueue_windows.h", 
+      "src/core/lib/json/json.c", 
+      "src/core/lib/json/json.h", 
+      "src/core/lib/json/json_common.h", 
+      "src/core/lib/json/json_reader.c", 
+      "src/core/lib/json/json_reader.h", 
+      "src/core/lib/json/json_string.c", 
+      "src/core/lib/json/json_writer.c", 
+      "src/core/lib/json/json_writer.h", 
+      "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c", 
+      "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h", 
+      "src/core/lib/security/auth_filters.h", 
+      "src/core/lib/security/b64.c", 
+      "src/core/lib/security/b64.h", 
+      "src/core/lib/security/client_auth_filter.c", 
+      "src/core/lib/security/credentials.c", 
+      "src/core/lib/security/credentials.h", 
+      "src/core/lib/security/credentials_metadata.c", 
+      "src/core/lib/security/credentials_posix.c", 
+      "src/core/lib/security/credentials_win32.c", 
+      "src/core/lib/security/google_default_credentials.c", 
+      "src/core/lib/security/handshake.c", 
+      "src/core/lib/security/handshake.h", 
+      "src/core/lib/security/json_token.c", 
+      "src/core/lib/security/json_token.h", 
+      "src/core/lib/security/jwt_verifier.c", 
+      "src/core/lib/security/jwt_verifier.h", 
+      "src/core/lib/security/secure_endpoint.c", 
+      "src/core/lib/security/secure_endpoint.h", 
+      "src/core/lib/security/security_connector.c", 
+      "src/core/lib/security/security_connector.h", 
+      "src/core/lib/security/security_context.c", 
+      "src/core/lib/security/security_context.h", 
+      "src/core/lib/security/server_auth_filter.c", 
+      "src/core/lib/security/server_secure_chttp2.c", 
+      "src/core/lib/statistics/census_interface.h", 
+      "src/core/lib/statistics/census_rpc_stats.h", 
+      "src/core/lib/surface/alarm.c", 
+      "src/core/lib/surface/api_trace.c", 
+      "src/core/lib/surface/api_trace.h", 
+      "src/core/lib/surface/byte_buffer.c", 
+      "src/core/lib/surface/byte_buffer_reader.c", 
+      "src/core/lib/surface/call.c", 
+      "src/core/lib/surface/call.h", 
+      "src/core/lib/surface/call_details.c", 
+      "src/core/lib/surface/call_log_batch.c", 
+      "src/core/lib/surface/call_test_only.h", 
+      "src/core/lib/surface/channel.c", 
+      "src/core/lib/surface/channel.h", 
+      "src/core/lib/surface/channel_connectivity.c", 
+      "src/core/lib/surface/channel_create.c", 
+      "src/core/lib/surface/channel_init.c", 
+      "src/core/lib/surface/channel_init.h", 
+      "src/core/lib/surface/channel_ping.c", 
+      "src/core/lib/surface/channel_stack_type.c", 
+      "src/core/lib/surface/channel_stack_type.h", 
+      "src/core/lib/surface/completion_queue.c", 
+      "src/core/lib/surface/completion_queue.h", 
+      "src/core/lib/surface/event_string.c", 
+      "src/core/lib/surface/event_string.h", 
+      "src/core/lib/surface/init.c", 
+      "src/core/lib/surface/init.h", 
+      "src/core/lib/surface/init_secure.c", 
+      "src/core/lib/surface/lame_client.c", 
+      "src/core/lib/surface/lame_client.h", 
+      "src/core/lib/surface/metadata_array.c", 
+      "src/core/lib/surface/secure_channel_create.c", 
+      "src/core/lib/surface/server.c", 
+      "src/core/lib/surface/server.h", 
+      "src/core/lib/surface/server_chttp2.c", 
+      "src/core/lib/surface/surface_trace.h", 
+      "src/core/lib/surface/validate_metadata.c", 
+      "src/core/lib/surface/version.c", 
+      "src/core/lib/transport/byte_stream.c", 
+      "src/core/lib/transport/byte_stream.h", 
+      "src/core/lib/transport/chttp2/alpn.c", 
+      "src/core/lib/transport/chttp2/alpn.h", 
+      "src/core/lib/transport/chttp2/bin_encoder.c", 
+      "src/core/lib/transport/chttp2/bin_encoder.h", 
+      "src/core/lib/transport/chttp2/frame.h", 
+      "src/core/lib/transport/chttp2/frame_data.c", 
+      "src/core/lib/transport/chttp2/frame_data.h", 
+      "src/core/lib/transport/chttp2/frame_goaway.c", 
+      "src/core/lib/transport/chttp2/frame_goaway.h", 
+      "src/core/lib/transport/chttp2/frame_ping.c", 
+      "src/core/lib/transport/chttp2/frame_ping.h", 
+      "src/core/lib/transport/chttp2/frame_rst_stream.c", 
+      "src/core/lib/transport/chttp2/frame_rst_stream.h", 
+      "src/core/lib/transport/chttp2/frame_settings.c", 
+      "src/core/lib/transport/chttp2/frame_settings.h", 
+      "src/core/lib/transport/chttp2/frame_window_update.c", 
+      "src/core/lib/transport/chttp2/frame_window_update.h", 
+      "src/core/lib/transport/chttp2/hpack_encoder.c", 
+      "src/core/lib/transport/chttp2/hpack_encoder.h", 
+      "src/core/lib/transport/chttp2/hpack_parser.c", 
+      "src/core/lib/transport/chttp2/hpack_parser.h", 
+      "src/core/lib/transport/chttp2/hpack_table.c", 
+      "src/core/lib/transport/chttp2/hpack_table.h", 
+      "src/core/lib/transport/chttp2/http2_errors.h", 
+      "src/core/lib/transport/chttp2/huffsyms.c", 
+      "src/core/lib/transport/chttp2/huffsyms.h", 
+      "src/core/lib/transport/chttp2/incoming_metadata.c", 
+      "src/core/lib/transport/chttp2/incoming_metadata.h", 
+      "src/core/lib/transport/chttp2/internal.h", 
+      "src/core/lib/transport/chttp2/parsing.c", 
+      "src/core/lib/transport/chttp2/status_conversion.c", 
+      "src/core/lib/transport/chttp2/status_conversion.h", 
+      "src/core/lib/transport/chttp2/stream_lists.c", 
+      "src/core/lib/transport/chttp2/stream_map.c", 
+      "src/core/lib/transport/chttp2/stream_map.h", 
+      "src/core/lib/transport/chttp2/timeout_encoding.c", 
+      "src/core/lib/transport/chttp2/timeout_encoding.h", 
+      "src/core/lib/transport/chttp2/varint.c", 
+      "src/core/lib/transport/chttp2/varint.h", 
+      "src/core/lib/transport/chttp2/writing.c", 
+      "src/core/lib/transport/chttp2_transport.c", 
+      "src/core/lib/transport/chttp2_transport.h", 
+      "src/core/lib/transport/connectivity_state.c", 
+      "src/core/lib/transport/connectivity_state.h", 
+      "src/core/lib/transport/metadata.c", 
+      "src/core/lib/transport/metadata.h", 
+      "src/core/lib/transport/metadata_batch.c", 
+      "src/core/lib/transport/metadata_batch.h", 
+      "src/core/lib/transport/static_metadata.c", 
+      "src/core/lib/transport/static_metadata.h", 
+      "src/core/lib/transport/transport.c", 
+      "src/core/lib/transport/transport.h", 
+      "src/core/lib/transport/transport_impl.h", 
+      "src/core/lib/transport/transport_op_string.c", 
+      "src/core/lib/tsi/fake_transport_security.c", 
+      "src/core/lib/tsi/fake_transport_security.h", 
+      "src/core/lib/tsi/ssl_transport_security.c", 
+      "src/core/lib/tsi/ssl_transport_security.h", 
+      "src/core/lib/tsi/ssl_types.h", 
+      "src/core/lib/tsi/transport_security.c", 
+      "src/core/lib/tsi/transport_security.h", 
+      "src/core/lib/tsi/transport_security_interface.h"
     ], 
     "third_party": false, 
     "type": "lib"
@@ -4448,128 +4432,130 @@
       "include/grpc/impl/codegen/propagation_bits.h", 
       "include/grpc/impl/codegen/status.h", 
       "include/grpc/status.h", 
-      "src/core/census/aggregation.h", 
-      "src/core/census/grpc_filter.h", 
-      "src/core/census/grpc_plugin.h", 
-      "src/core/census/mlog.h", 
-      "src/core/census/rpc_metric_id.h", 
-      "src/core/channel/channel_args.h", 
-      "src/core/channel/channel_stack.h", 
-      "src/core/channel/channel_stack_builder.h", 
-      "src/core/channel/client_channel.h", 
-      "src/core/channel/client_uchannel.h", 
-      "src/core/channel/compress_filter.h", 
-      "src/core/channel/connected_channel.h", 
-      "src/core/channel/context.h", 
-      "src/core/channel/http_client_filter.h", 
-      "src/core/channel/http_server_filter.h", 
-      "src/core/channel/subchannel_call_holder.h", 
-      "src/core/client_config/client_config.h", 
-      "src/core/client_config/connector.h", 
-      "src/core/client_config/initial_connect_string.h", 
-      "src/core/client_config/lb_policies/load_balancer_api.h", 
-      "src/core/client_config/lb_policies/pick_first.h", 
-      "src/core/client_config/lb_policies/round_robin.h", 
-      "src/core/client_config/lb_policy.h", 
-      "src/core/client_config/lb_policy_factory.h", 
-      "src/core/client_config/lb_policy_registry.h", 
-      "src/core/client_config/resolver.h", 
-      "src/core/client_config/resolver_factory.h", 
-      "src/core/client_config/resolver_registry.h", 
-      "src/core/client_config/resolvers/dns_resolver.h", 
-      "src/core/client_config/resolvers/sockaddr_resolver.h", 
-      "src/core/client_config/subchannel.h", 
-      "src/core/client_config/subchannel_factory.h", 
-      "src/core/client_config/subchannel_index.h", 
-      "src/core/client_config/uri_parser.h", 
-      "src/core/compression/algorithm_metadata.h", 
-      "src/core/compression/message_compress.h", 
-      "src/core/debug/trace.h", 
-      "src/core/httpcli/format_request.h", 
-      "src/core/httpcli/httpcli.h", 
-      "src/core/httpcli/parser.h", 
-      "src/core/iomgr/closure.h", 
-      "src/core/iomgr/endpoint.h", 
-      "src/core/iomgr/endpoint_pair.h", 
-      "src/core/iomgr/ev_poll_and_epoll_posix.h", 
-      "src/core/iomgr/ev_posix.h", 
-      "src/core/iomgr/exec_ctx.h", 
-      "src/core/iomgr/executor.h", 
-      "src/core/iomgr/iocp_windows.h", 
-      "src/core/iomgr/iomgr.h", 
-      "src/core/iomgr/iomgr_internal.h", 
-      "src/core/iomgr/iomgr_posix.h", 
-      "src/core/iomgr/pollset.h", 
-      "src/core/iomgr/pollset_set.h", 
-      "src/core/iomgr/pollset_set_windows.h", 
-      "src/core/iomgr/pollset_windows.h", 
-      "src/core/iomgr/resolve_address.h", 
-      "src/core/iomgr/sockaddr.h", 
-      "src/core/iomgr/sockaddr_posix.h", 
-      "src/core/iomgr/sockaddr_utils.h", 
-      "src/core/iomgr/sockaddr_win32.h", 
-      "src/core/iomgr/socket_utils_posix.h", 
-      "src/core/iomgr/socket_windows.h", 
-      "src/core/iomgr/tcp_client.h", 
-      "src/core/iomgr/tcp_posix.h", 
-      "src/core/iomgr/tcp_server.h", 
-      "src/core/iomgr/tcp_windows.h", 
-      "src/core/iomgr/time_averaged_stats.h", 
-      "src/core/iomgr/timer.h", 
-      "src/core/iomgr/timer_heap.h", 
-      "src/core/iomgr/udp_server.h", 
-      "src/core/iomgr/wakeup_fd_pipe.h", 
-      "src/core/iomgr/wakeup_fd_posix.h", 
-      "src/core/iomgr/workqueue.h", 
-      "src/core/iomgr/workqueue_posix.h", 
-      "src/core/iomgr/workqueue_windows.h", 
-      "src/core/json/json.h", 
-      "src/core/json/json_common.h", 
-      "src/core/json/json_reader.h", 
-      "src/core/json/json_writer.h", 
-      "src/core/proto/grpc/lb/v0/load_balancer.pb.h", 
-      "src/core/statistics/census_interface.h", 
-      "src/core/statistics/census_rpc_stats.h", 
-      "src/core/surface/api_trace.h", 
-      "src/core/surface/call.h", 
-      "src/core/surface/call_test_only.h", 
-      "src/core/surface/channel.h", 
-      "src/core/surface/channel_init.h", 
-      "src/core/surface/channel_stack_type.h", 
-      "src/core/surface/completion_queue.h", 
-      "src/core/surface/event_string.h", 
-      "src/core/surface/init.h", 
-      "src/core/surface/lame_client.h", 
-      "src/core/surface/server.h", 
-      "src/core/surface/surface_trace.h", 
-      "src/core/transport/byte_stream.h", 
-      "src/core/transport/chttp2/alpn.h", 
-      "src/core/transport/chttp2/bin_encoder.h", 
-      "src/core/transport/chttp2/frame.h", 
-      "src/core/transport/chttp2/frame_data.h", 
-      "src/core/transport/chttp2/frame_goaway.h", 
-      "src/core/transport/chttp2/frame_ping.h", 
-      "src/core/transport/chttp2/frame_rst_stream.h", 
-      "src/core/transport/chttp2/frame_settings.h", 
-      "src/core/transport/chttp2/frame_window_update.h", 
-      "src/core/transport/chttp2/hpack_encoder.h", 
-      "src/core/transport/chttp2/hpack_parser.h", 
-      "src/core/transport/chttp2/hpack_table.h", 
-      "src/core/transport/chttp2/http2_errors.h", 
-      "src/core/transport/chttp2/huffsyms.h", 
-      "src/core/transport/chttp2/incoming_metadata.h", 
-      "src/core/transport/chttp2/internal.h", 
-      "src/core/transport/chttp2/status_conversion.h", 
-      "src/core/transport/chttp2/stream_map.h", 
-      "src/core/transport/chttp2/timeout_encoding.h", 
-      "src/core/transport/chttp2/varint.h", 
-      "src/core/transport/chttp2_transport.h", 
-      "src/core/transport/connectivity_state.h", 
-      "src/core/transport/metadata.h", 
-      "src/core/transport/metadata_batch.h", 
-      "src/core/transport/static_metadata.h", 
-      "src/core/transport/transport.h", 
-      "src/core/transport/transport_impl.h", 
+      "src/core/lib/census/aggregation.h", 
+      "src/core/lib/census/grpc_filter.h", 
+      "src/core/lib/census/grpc_plugin.h", 
+      "src/core/lib/census/mlog.h", 
+      "src/core/lib/census/rpc_metric_id.h", 
+      "src/core/lib/channel/channel_args.h", 
+      "src/core/lib/channel/channel_stack.h", 
+      "src/core/lib/channel/channel_stack_builder.h", 
+      "src/core/lib/channel/client_channel.h", 
+      "src/core/lib/channel/compress_filter.h", 
+      "src/core/lib/channel/connected_channel.h", 
+      "src/core/lib/channel/context.h", 
+      "src/core/lib/channel/http_client_filter.h", 
+      "src/core/lib/channel/http_server_filter.h", 
+      "src/core/lib/channel/subchannel_call_holder.h", 
+      "src/core/lib/client_config/client_config.h", 
+      "src/core/lib/client_config/connector.h", 
+      "src/core/lib/client_config/initial_connect_string.h", 
+      "src/core/lib/client_config/lb_policies/load_balancer_api.h", 
+      "src/core/lib/client_config/lb_policies/pick_first.h", 
+      "src/core/lib/client_config/lb_policies/round_robin.h", 
+      "src/core/lib/client_config/lb_policy.h", 
+      "src/core/lib/client_config/lb_policy_factory.h", 
+      "src/core/lib/client_config/lb_policy_registry.h", 
+      "src/core/lib/client_config/resolver.h", 
+      "src/core/lib/client_config/resolver_factory.h", 
+      "src/core/lib/client_config/resolver_registry.h", 
+      "src/core/lib/client_config/resolvers/dns_resolver.h", 
+      "src/core/lib/client_config/resolvers/sockaddr_resolver.h", 
+      "src/core/lib/client_config/subchannel.h", 
+      "src/core/lib/client_config/subchannel_factory.h", 
+      "src/core/lib/client_config/subchannel_index.h", 
+      "src/core/lib/client_config/uri_parser.h", 
+      "src/core/lib/compression/algorithm_metadata.h", 
+      "src/core/lib/compression/message_compress.h", 
+      "src/core/lib/debug/trace.h", 
+      "src/core/lib/http/format_request.h", 
+      "src/core/lib/http/httpcli.h", 
+      "src/core/lib/http/parser.h", 
+      "src/core/lib/iomgr/closure.h", 
+      "src/core/lib/iomgr/endpoint.h", 
+      "src/core/lib/iomgr/endpoint_pair.h", 
+      "src/core/lib/iomgr/ev_poll_and_epoll_posix.h", 
+      "src/core/lib/iomgr/ev_posix.h", 
+      "src/core/lib/iomgr/exec_ctx.h", 
+      "src/core/lib/iomgr/executor.h", 
+      "src/core/lib/iomgr/iocp_windows.h", 
+      "src/core/lib/iomgr/iomgr.h", 
+      "src/core/lib/iomgr/iomgr_internal.h", 
+      "src/core/lib/iomgr/iomgr_posix.h", 
+      "src/core/lib/iomgr/pollset.h", 
+      "src/core/lib/iomgr/pollset_posix.h", 
+      "src/core/lib/iomgr/pollset_set.h", 
+      "src/core/lib/iomgr/pollset_set_posix.h", 
+      "src/core/lib/iomgr/pollset_set_windows.h", 
+      "src/core/lib/iomgr/pollset_windows.h", 
+      "src/core/lib/iomgr/resolve_address.h", 
+      "src/core/lib/iomgr/sockaddr.h", 
+      "src/core/lib/iomgr/sockaddr_posix.h", 
+      "src/core/lib/iomgr/sockaddr_utils.h", 
+      "src/core/lib/iomgr/sockaddr_win32.h", 
+      "src/core/lib/iomgr/socket_utils_posix.h", 
+      "src/core/lib/iomgr/socket_windows.h", 
+      "src/core/lib/iomgr/tcp_client.h", 
+      "src/core/lib/iomgr/tcp_posix.h", 
+      "src/core/lib/iomgr/tcp_server.h", 
+      "src/core/lib/iomgr/tcp_windows.h", 
+      "src/core/lib/iomgr/time_averaged_stats.h", 
+      "src/core/lib/iomgr/timer.h", 
+      "src/core/lib/iomgr/timer_heap.h", 
+      "src/core/lib/iomgr/udp_server.h", 
+      "src/core/lib/iomgr/unix_sockets_posix.h", 
+      "src/core/lib/iomgr/wakeup_fd_pipe.h", 
+      "src/core/lib/iomgr/wakeup_fd_posix.h", 
+      "src/core/lib/iomgr/workqueue.h", 
+      "src/core/lib/iomgr/workqueue_posix.h", 
+      "src/core/lib/iomgr/workqueue_windows.h", 
+      "src/core/lib/json/json.h", 
+      "src/core/lib/json/json_common.h", 
+      "src/core/lib/json/json_reader.h", 
+      "src/core/lib/json/json_writer.h", 
+      "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h", 
+      "src/core/lib/statistics/census_interface.h", 
+      "src/core/lib/statistics/census_rpc_stats.h", 
+      "src/core/lib/surface/api_trace.h", 
+      "src/core/lib/surface/call.h", 
+      "src/core/lib/surface/call_test_only.h", 
+      "src/core/lib/surface/channel.h", 
+      "src/core/lib/surface/channel_init.h", 
+      "src/core/lib/surface/channel_stack_type.h", 
+      "src/core/lib/surface/completion_queue.h", 
+      "src/core/lib/surface/event_string.h", 
+      "src/core/lib/surface/init.h", 
+      "src/core/lib/surface/lame_client.h", 
+      "src/core/lib/surface/server.h", 
+      "src/core/lib/surface/surface_trace.h", 
+      "src/core/lib/transport/byte_stream.h", 
+      "src/core/lib/transport/chttp2/alpn.h", 
+      "src/core/lib/transport/chttp2/bin_encoder.h", 
+      "src/core/lib/transport/chttp2/frame.h", 
+      "src/core/lib/transport/chttp2/frame_data.h", 
+      "src/core/lib/transport/chttp2/frame_goaway.h", 
+      "src/core/lib/transport/chttp2/frame_ping.h", 
+      "src/core/lib/transport/chttp2/frame_rst_stream.h", 
+      "src/core/lib/transport/chttp2/frame_settings.h", 
+      "src/core/lib/transport/chttp2/frame_window_update.h", 
+      "src/core/lib/transport/chttp2/hpack_encoder.h", 
+      "src/core/lib/transport/chttp2/hpack_parser.h", 
+      "src/core/lib/transport/chttp2/hpack_table.h", 
+      "src/core/lib/transport/chttp2/http2_errors.h", 
+      "src/core/lib/transport/chttp2/huffsyms.h", 
+      "src/core/lib/transport/chttp2/incoming_metadata.h", 
+      "src/core/lib/transport/chttp2/internal.h", 
+      "src/core/lib/transport/chttp2/status_conversion.h", 
+      "src/core/lib/transport/chttp2/stream_map.h", 
+      "src/core/lib/transport/chttp2/timeout_encoding.h", 
+      "src/core/lib/transport/chttp2/varint.h", 
+      "src/core/lib/transport/chttp2_transport.h", 
+      "src/core/lib/transport/connectivity_state.h", 
+      "src/core/lib/transport/metadata.h", 
+      "src/core/lib/transport/metadata_batch.h", 
+      "src/core/lib/transport/static_metadata.h", 
+      "src/core/lib/transport/transport.h", 
+      "src/core/lib/transport/transport_impl.h", 
       "third_party/nanopb/pb.h", 
       "third_party/nanopb/pb_common.h", 
       "third_party/nanopb/pb_decode.h", 
@@ -4590,265 +4576,268 @@
       "include/grpc/impl/codegen/propagation_bits.h", 
       "include/grpc/impl/codegen/status.h", 
       "include/grpc/status.h", 
-      "src/core/census/aggregation.h", 
-      "src/core/census/context.c", 
-      "src/core/census/grpc_context.c", 
-      "src/core/census/grpc_filter.c", 
-      "src/core/census/grpc_filter.h", 
-      "src/core/census/grpc_plugin.c", 
-      "src/core/census/grpc_plugin.h", 
-      "src/core/census/initialize.c", 
-      "src/core/census/mlog.c", 
-      "src/core/census/mlog.h", 
-      "src/core/census/operation.c", 
-      "src/core/census/placeholders.c", 
-      "src/core/census/rpc_metric_id.h", 
-      "src/core/census/tracing.c", 
-      "src/core/channel/channel_args.c", 
-      "src/core/channel/channel_args.h", 
-      "src/core/channel/channel_stack.c", 
-      "src/core/channel/channel_stack.h", 
-      "src/core/channel/channel_stack_builder.c", 
-      "src/core/channel/channel_stack_builder.h", 
-      "src/core/channel/client_channel.c", 
-      "src/core/channel/client_channel.h", 
-      "src/core/channel/client_uchannel.c", 
-      "src/core/channel/client_uchannel.h", 
-      "src/core/channel/compress_filter.c", 
-      "src/core/channel/compress_filter.h", 
-      "src/core/channel/connected_channel.c", 
-      "src/core/channel/connected_channel.h", 
-      "src/core/channel/context.h", 
-      "src/core/channel/http_client_filter.c", 
-      "src/core/channel/http_client_filter.h", 
-      "src/core/channel/http_server_filter.c", 
-      "src/core/channel/http_server_filter.h", 
-      "src/core/channel/subchannel_call_holder.c", 
-      "src/core/channel/subchannel_call_holder.h", 
-      "src/core/client_config/client_config.c", 
-      "src/core/client_config/client_config.h", 
-      "src/core/client_config/connector.c", 
-      "src/core/client_config/connector.h", 
-      "src/core/client_config/default_initial_connect_string.c", 
-      "src/core/client_config/initial_connect_string.c", 
-      "src/core/client_config/initial_connect_string.h", 
-      "src/core/client_config/lb_policies/load_balancer_api.c", 
-      "src/core/client_config/lb_policies/load_balancer_api.h", 
-      "src/core/client_config/lb_policies/pick_first.c", 
-      "src/core/client_config/lb_policies/pick_first.h", 
-      "src/core/client_config/lb_policies/round_robin.c", 
-      "src/core/client_config/lb_policies/round_robin.h", 
-      "src/core/client_config/lb_policy.c", 
-      "src/core/client_config/lb_policy.h", 
-      "src/core/client_config/lb_policy_factory.c", 
-      "src/core/client_config/lb_policy_factory.h", 
-      "src/core/client_config/lb_policy_registry.c", 
-      "src/core/client_config/lb_policy_registry.h", 
-      "src/core/client_config/resolver.c", 
-      "src/core/client_config/resolver.h", 
-      "src/core/client_config/resolver_factory.c", 
-      "src/core/client_config/resolver_factory.h", 
-      "src/core/client_config/resolver_registry.c", 
-      "src/core/client_config/resolver_registry.h", 
-      "src/core/client_config/resolvers/dns_resolver.c", 
-      "src/core/client_config/resolvers/dns_resolver.h", 
-      "src/core/client_config/resolvers/sockaddr_resolver.c", 
-      "src/core/client_config/resolvers/sockaddr_resolver.h", 
-      "src/core/client_config/subchannel.c", 
-      "src/core/client_config/subchannel.h", 
-      "src/core/client_config/subchannel_factory.c", 
-      "src/core/client_config/subchannel_factory.h", 
-      "src/core/client_config/subchannel_index.c", 
-      "src/core/client_config/subchannel_index.h", 
-      "src/core/client_config/uri_parser.c", 
-      "src/core/client_config/uri_parser.h", 
-      "src/core/compression/algorithm_metadata.h", 
-      "src/core/compression/compression_algorithm.c", 
-      "src/core/compression/message_compress.c", 
-      "src/core/compression/message_compress.h", 
-      "src/core/debug/trace.c", 
-      "src/core/debug/trace.h", 
-      "src/core/httpcli/format_request.c", 
-      "src/core/httpcli/format_request.h", 
-      "src/core/httpcli/httpcli.c", 
-      "src/core/httpcli/httpcli.h", 
-      "src/core/httpcli/parser.c", 
-      "src/core/httpcli/parser.h", 
-      "src/core/iomgr/closure.c", 
-      "src/core/iomgr/closure.h", 
-      "src/core/iomgr/endpoint.c", 
-      "src/core/iomgr/endpoint.h", 
-      "src/core/iomgr/endpoint_pair.h", 
-      "src/core/iomgr/endpoint_pair_posix.c", 
-      "src/core/iomgr/endpoint_pair_windows.c", 
-      "src/core/iomgr/ev_poll_and_epoll_posix.c", 
-      "src/core/iomgr/ev_poll_and_epoll_posix.h", 
-      "src/core/iomgr/ev_posix.c", 
-      "src/core/iomgr/ev_posix.h", 
-      "src/core/iomgr/exec_ctx.c", 
-      "src/core/iomgr/exec_ctx.h", 
-      "src/core/iomgr/executor.c", 
-      "src/core/iomgr/executor.h", 
-      "src/core/iomgr/iocp_windows.c", 
-      "src/core/iomgr/iocp_windows.h", 
-      "src/core/iomgr/iomgr.c", 
-      "src/core/iomgr/iomgr.h", 
-      "src/core/iomgr/iomgr_internal.h", 
-      "src/core/iomgr/iomgr_posix.c", 
-      "src/core/iomgr/iomgr_posix.h", 
-      "src/core/iomgr/iomgr_windows.c", 
-      "src/core/iomgr/pollset.h", 
-      "src/core/iomgr/pollset_set.h", 
-      "src/core/iomgr/pollset_set_windows.c", 
-      "src/core/iomgr/pollset_set_windows.h", 
-      "src/core/iomgr/pollset_windows.c", 
-      "src/core/iomgr/pollset_windows.h", 
-      "src/core/iomgr/resolve_address.h", 
-      "src/core/iomgr/resolve_address_posix.c", 
-      "src/core/iomgr/resolve_address_windows.c", 
-      "src/core/iomgr/sockaddr.h", 
-      "src/core/iomgr/sockaddr_posix.h", 
-      "src/core/iomgr/sockaddr_utils.c", 
-      "src/core/iomgr/sockaddr_utils.h", 
-      "src/core/iomgr/sockaddr_win32.h", 
-      "src/core/iomgr/socket_utils_common_posix.c", 
-      "src/core/iomgr/socket_utils_linux.c", 
-      "src/core/iomgr/socket_utils_posix.c", 
-      "src/core/iomgr/socket_utils_posix.h", 
-      "src/core/iomgr/socket_windows.c", 
-      "src/core/iomgr/socket_windows.h", 
-      "src/core/iomgr/tcp_client.h", 
-      "src/core/iomgr/tcp_client_posix.c", 
-      "src/core/iomgr/tcp_client_windows.c", 
-      "src/core/iomgr/tcp_posix.c", 
-      "src/core/iomgr/tcp_posix.h", 
-      "src/core/iomgr/tcp_server.h", 
-      "src/core/iomgr/tcp_server_posix.c", 
-      "src/core/iomgr/tcp_server_windows.c", 
-      "src/core/iomgr/tcp_windows.c", 
-      "src/core/iomgr/tcp_windows.h", 
-      "src/core/iomgr/time_averaged_stats.c", 
-      "src/core/iomgr/time_averaged_stats.h", 
-      "src/core/iomgr/timer.c", 
-      "src/core/iomgr/timer.h", 
-      "src/core/iomgr/timer_heap.c", 
-      "src/core/iomgr/timer_heap.h", 
-      "src/core/iomgr/udp_server.c", 
-      "src/core/iomgr/udp_server.h", 
-      "src/core/iomgr/wakeup_fd_eventfd.c", 
-      "src/core/iomgr/wakeup_fd_nospecial.c", 
-      "src/core/iomgr/wakeup_fd_pipe.c", 
-      "src/core/iomgr/wakeup_fd_pipe.h", 
-      "src/core/iomgr/wakeup_fd_posix.c", 
-      "src/core/iomgr/wakeup_fd_posix.h", 
-      "src/core/iomgr/workqueue.h", 
-      "src/core/iomgr/workqueue_posix.c", 
-      "src/core/iomgr/workqueue_posix.h", 
-      "src/core/iomgr/workqueue_windows.c", 
-      "src/core/iomgr/workqueue_windows.h", 
-      "src/core/json/json.c", 
-      "src/core/json/json.h", 
-      "src/core/json/json_common.h", 
-      "src/core/json/json_reader.c", 
-      "src/core/json/json_reader.h", 
-      "src/core/json/json_string.c", 
-      "src/core/json/json_writer.c", 
-      "src/core/json/json_writer.h", 
-      "src/core/proto/grpc/lb/v0/load_balancer.pb.c", 
-      "src/core/proto/grpc/lb/v0/load_balancer.pb.h", 
-      "src/core/statistics/census_interface.h", 
-      "src/core/statistics/census_rpc_stats.h", 
-      "src/core/surface/alarm.c", 
-      "src/core/surface/api_trace.c", 
-      "src/core/surface/api_trace.h", 
-      "src/core/surface/byte_buffer.c", 
-      "src/core/surface/byte_buffer_reader.c", 
-      "src/core/surface/call.c", 
-      "src/core/surface/call.h", 
-      "src/core/surface/call_details.c", 
-      "src/core/surface/call_log_batch.c", 
-      "src/core/surface/call_test_only.h", 
-      "src/core/surface/channel.c", 
-      "src/core/surface/channel.h", 
-      "src/core/surface/channel_connectivity.c", 
-      "src/core/surface/channel_create.c", 
-      "src/core/surface/channel_init.c", 
-      "src/core/surface/channel_init.h", 
-      "src/core/surface/channel_ping.c", 
-      "src/core/surface/channel_stack_type.c", 
-      "src/core/surface/channel_stack_type.h", 
-      "src/core/surface/completion_queue.c", 
-      "src/core/surface/completion_queue.h", 
-      "src/core/surface/event_string.c", 
-      "src/core/surface/event_string.h", 
-      "src/core/surface/init.c", 
-      "src/core/surface/init.h", 
-      "src/core/surface/init_unsecure.c", 
-      "src/core/surface/lame_client.c", 
-      "src/core/surface/lame_client.h", 
-      "src/core/surface/metadata_array.c", 
-      "src/core/surface/server.c", 
-      "src/core/surface/server.h", 
-      "src/core/surface/server_chttp2.c", 
-      "src/core/surface/surface_trace.h", 
-      "src/core/surface/validate_metadata.c", 
-      "src/core/surface/version.c", 
-      "src/core/transport/byte_stream.c", 
-      "src/core/transport/byte_stream.h", 
-      "src/core/transport/chttp2/alpn.c", 
-      "src/core/transport/chttp2/alpn.h", 
-      "src/core/transport/chttp2/bin_encoder.c", 
-      "src/core/transport/chttp2/bin_encoder.h", 
-      "src/core/transport/chttp2/frame.h", 
-      "src/core/transport/chttp2/frame_data.c", 
-      "src/core/transport/chttp2/frame_data.h", 
-      "src/core/transport/chttp2/frame_goaway.c", 
-      "src/core/transport/chttp2/frame_goaway.h", 
-      "src/core/transport/chttp2/frame_ping.c", 
-      "src/core/transport/chttp2/frame_ping.h", 
-      "src/core/transport/chttp2/frame_rst_stream.c", 
-      "src/core/transport/chttp2/frame_rst_stream.h", 
-      "src/core/transport/chttp2/frame_settings.c", 
-      "src/core/transport/chttp2/frame_settings.h", 
-      "src/core/transport/chttp2/frame_window_update.c", 
-      "src/core/transport/chttp2/frame_window_update.h", 
-      "src/core/transport/chttp2/hpack_encoder.c", 
-      "src/core/transport/chttp2/hpack_encoder.h", 
-      "src/core/transport/chttp2/hpack_parser.c", 
-      "src/core/transport/chttp2/hpack_parser.h", 
-      "src/core/transport/chttp2/hpack_table.c", 
-      "src/core/transport/chttp2/hpack_table.h", 
-      "src/core/transport/chttp2/http2_errors.h", 
-      "src/core/transport/chttp2/huffsyms.c", 
-      "src/core/transport/chttp2/huffsyms.h", 
-      "src/core/transport/chttp2/incoming_metadata.c", 
-      "src/core/transport/chttp2/incoming_metadata.h", 
-      "src/core/transport/chttp2/internal.h", 
-      "src/core/transport/chttp2/parsing.c", 
-      "src/core/transport/chttp2/status_conversion.c", 
-      "src/core/transport/chttp2/status_conversion.h", 
-      "src/core/transport/chttp2/stream_lists.c", 
-      "src/core/transport/chttp2/stream_map.c", 
-      "src/core/transport/chttp2/stream_map.h", 
-      "src/core/transport/chttp2/timeout_encoding.c", 
-      "src/core/transport/chttp2/timeout_encoding.h", 
-      "src/core/transport/chttp2/varint.c", 
-      "src/core/transport/chttp2/varint.h", 
-      "src/core/transport/chttp2/writing.c", 
-      "src/core/transport/chttp2_transport.c", 
-      "src/core/transport/chttp2_transport.h", 
-      "src/core/transport/connectivity_state.c", 
-      "src/core/transport/connectivity_state.h", 
-      "src/core/transport/metadata.c", 
-      "src/core/transport/metadata.h", 
-      "src/core/transport/metadata_batch.c", 
-      "src/core/transport/metadata_batch.h", 
-      "src/core/transport/static_metadata.c", 
-      "src/core/transport/static_metadata.h", 
-      "src/core/transport/transport.c", 
-      "src/core/transport/transport.h", 
-      "src/core/transport/transport_impl.h", 
-      "src/core/transport/transport_op_string.c"
+      "src/core/lib/census/aggregation.h", 
+      "src/core/lib/census/context.c", 
+      "src/core/lib/census/grpc_context.c", 
+      "src/core/lib/census/grpc_filter.c", 
+      "src/core/lib/census/grpc_filter.h", 
+      "src/core/lib/census/grpc_plugin.c", 
+      "src/core/lib/census/grpc_plugin.h", 
+      "src/core/lib/census/initialize.c", 
+      "src/core/lib/census/mlog.c", 
+      "src/core/lib/census/mlog.h", 
+      "src/core/lib/census/operation.c", 
+      "src/core/lib/census/placeholders.c", 
+      "src/core/lib/census/rpc_metric_id.h", 
+      "src/core/lib/census/tracing.c", 
+      "src/core/lib/channel/channel_args.c", 
+      "src/core/lib/channel/channel_args.h", 
+      "src/core/lib/channel/channel_stack.c", 
+      "src/core/lib/channel/channel_stack.h", 
+      "src/core/lib/channel/channel_stack_builder.c", 
+      "src/core/lib/channel/channel_stack_builder.h", 
+      "src/core/lib/channel/client_channel.c", 
+      "src/core/lib/channel/client_channel.h", 
+      "src/core/lib/channel/compress_filter.c", 
+      "src/core/lib/channel/compress_filter.h", 
+      "src/core/lib/channel/connected_channel.c", 
+      "src/core/lib/channel/connected_channel.h", 
+      "src/core/lib/channel/context.h", 
+      "src/core/lib/channel/http_client_filter.c", 
+      "src/core/lib/channel/http_client_filter.h", 
+      "src/core/lib/channel/http_server_filter.c", 
+      "src/core/lib/channel/http_server_filter.h", 
+      "src/core/lib/channel/subchannel_call_holder.c", 
+      "src/core/lib/channel/subchannel_call_holder.h", 
+      "src/core/lib/client_config/client_config.c", 
+      "src/core/lib/client_config/client_config.h", 
+      "src/core/lib/client_config/connector.c", 
+      "src/core/lib/client_config/connector.h", 
+      "src/core/lib/client_config/default_initial_connect_string.c", 
+      "src/core/lib/client_config/initial_connect_string.c", 
+      "src/core/lib/client_config/initial_connect_string.h", 
+      "src/core/lib/client_config/lb_policies/load_balancer_api.c", 
+      "src/core/lib/client_config/lb_policies/load_balancer_api.h", 
+      "src/core/lib/client_config/lb_policies/pick_first.c", 
+      "src/core/lib/client_config/lb_policies/pick_first.h", 
+      "src/core/lib/client_config/lb_policies/round_robin.c", 
+      "src/core/lib/client_config/lb_policies/round_robin.h", 
+      "src/core/lib/client_config/lb_policy.c", 
+      "src/core/lib/client_config/lb_policy.h", 
+      "src/core/lib/client_config/lb_policy_factory.c", 
+      "src/core/lib/client_config/lb_policy_factory.h", 
+      "src/core/lib/client_config/lb_policy_registry.c", 
+      "src/core/lib/client_config/lb_policy_registry.h", 
+      "src/core/lib/client_config/resolver.c", 
+      "src/core/lib/client_config/resolver.h", 
+      "src/core/lib/client_config/resolver_factory.c", 
+      "src/core/lib/client_config/resolver_factory.h", 
+      "src/core/lib/client_config/resolver_registry.c", 
+      "src/core/lib/client_config/resolver_registry.h", 
+      "src/core/lib/client_config/resolvers/dns_resolver.c", 
+      "src/core/lib/client_config/resolvers/dns_resolver.h", 
+      "src/core/lib/client_config/resolvers/sockaddr_resolver.c", 
+      "src/core/lib/client_config/resolvers/sockaddr_resolver.h", 
+      "src/core/lib/client_config/subchannel.c", 
+      "src/core/lib/client_config/subchannel.h", 
+      "src/core/lib/client_config/subchannel_factory.c", 
+      "src/core/lib/client_config/subchannel_factory.h", 
+      "src/core/lib/client_config/subchannel_index.c", 
+      "src/core/lib/client_config/subchannel_index.h", 
+      "src/core/lib/client_config/uri_parser.c", 
+      "src/core/lib/client_config/uri_parser.h", 
+      "src/core/lib/compression/algorithm_metadata.h", 
+      "src/core/lib/compression/compression_algorithm.c", 
+      "src/core/lib/compression/message_compress.c", 
+      "src/core/lib/compression/message_compress.h", 
+      "src/core/lib/debug/trace.c", 
+      "src/core/lib/debug/trace.h", 
+      "src/core/lib/http/format_request.c", 
+      "src/core/lib/http/format_request.h", 
+      "src/core/lib/http/httpcli.c", 
+      "src/core/lib/http/httpcli.h", 
+      "src/core/lib/http/parser.c", 
+      "src/core/lib/http/parser.h", 
+      "src/core/lib/iomgr/closure.c", 
+      "src/core/lib/iomgr/closure.h", 
+      "src/core/lib/iomgr/endpoint.c", 
+      "src/core/lib/iomgr/endpoint.h", 
+      "src/core/lib/iomgr/endpoint_pair.h", 
+      "src/core/lib/iomgr/endpoint_pair_posix.c", 
+      "src/core/lib/iomgr/endpoint_pair_windows.c", 
+      "src/core/lib/iomgr/ev_poll_and_epoll_posix.c", 
+      "src/core/lib/iomgr/ev_poll_and_epoll_posix.h", 
+      "src/core/lib/iomgr/ev_posix.c", 
+      "src/core/lib/iomgr/ev_posix.h", 
+      "src/core/lib/iomgr/exec_ctx.c", 
+      "src/core/lib/iomgr/exec_ctx.h", 
+      "src/core/lib/iomgr/executor.c", 
+      "src/core/lib/iomgr/executor.h", 
+      "src/core/lib/iomgr/iocp_windows.c", 
+      "src/core/lib/iomgr/iocp_windows.h", 
+      "src/core/lib/iomgr/iomgr.c", 
+      "src/core/lib/iomgr/iomgr.h", 
+      "src/core/lib/iomgr/iomgr_internal.h", 
+      "src/core/lib/iomgr/iomgr_posix.c", 
+      "src/core/lib/iomgr/iomgr_posix.h", 
+      "src/core/lib/iomgr/iomgr_windows.c", 
+      "src/core/lib/iomgr/pollset.h", 
+      "src/core/lib/iomgr/pollset_posix.h", 
+      "src/core/lib/iomgr/pollset_set.h", 
+      "src/core/lib/iomgr/pollset_set_posix.h", 
+      "src/core/lib/iomgr/pollset_set_windows.c", 
+      "src/core/lib/iomgr/pollset_set_windows.h", 
+      "src/core/lib/iomgr/pollset_windows.c", 
+      "src/core/lib/iomgr/pollset_windows.h", 
+      "src/core/lib/iomgr/resolve_address.h", 
+      "src/core/lib/iomgr/resolve_address_posix.c", 
+      "src/core/lib/iomgr/resolve_address_windows.c", 
+      "src/core/lib/iomgr/sockaddr.h", 
+      "src/core/lib/iomgr/sockaddr_posix.h", 
+      "src/core/lib/iomgr/sockaddr_utils.c", 
+      "src/core/lib/iomgr/sockaddr_utils.h", 
+      "src/core/lib/iomgr/sockaddr_win32.h", 
+      "src/core/lib/iomgr/socket_utils_common_posix.c", 
+      "src/core/lib/iomgr/socket_utils_linux.c", 
+      "src/core/lib/iomgr/socket_utils_posix.c", 
+      "src/core/lib/iomgr/socket_utils_posix.h", 
+      "src/core/lib/iomgr/socket_windows.c", 
+      "src/core/lib/iomgr/socket_windows.h", 
+      "src/core/lib/iomgr/tcp_client.h", 
+      "src/core/lib/iomgr/tcp_client_posix.c", 
+      "src/core/lib/iomgr/tcp_client_windows.c", 
+      "src/core/lib/iomgr/tcp_posix.c", 
+      "src/core/lib/iomgr/tcp_posix.h", 
+      "src/core/lib/iomgr/tcp_server.h", 
+      "src/core/lib/iomgr/tcp_server_posix.c", 
+      "src/core/lib/iomgr/tcp_server_windows.c", 
+      "src/core/lib/iomgr/tcp_windows.c", 
+      "src/core/lib/iomgr/tcp_windows.h", 
+      "src/core/lib/iomgr/time_averaged_stats.c", 
+      "src/core/lib/iomgr/time_averaged_stats.h", 
+      "src/core/lib/iomgr/timer.c", 
+      "src/core/lib/iomgr/timer.h", 
+      "src/core/lib/iomgr/timer_heap.c", 
+      "src/core/lib/iomgr/timer_heap.h", 
+      "src/core/lib/iomgr/udp_server.c", 
+      "src/core/lib/iomgr/udp_server.h", 
+      "src/core/lib/iomgr/unix_sockets_posix.c", 
+      "src/core/lib/iomgr/unix_sockets_posix.h", 
+      "src/core/lib/iomgr/unix_sockets_posix_noop.c", 
+      "src/core/lib/iomgr/wakeup_fd_eventfd.c", 
+      "src/core/lib/iomgr/wakeup_fd_nospecial.c", 
+      "src/core/lib/iomgr/wakeup_fd_pipe.c", 
+      "src/core/lib/iomgr/wakeup_fd_pipe.h", 
+      "src/core/lib/iomgr/wakeup_fd_posix.c", 
+      "src/core/lib/iomgr/wakeup_fd_posix.h", 
+      "src/core/lib/iomgr/workqueue.h", 
+      "src/core/lib/iomgr/workqueue_posix.c", 
+      "src/core/lib/iomgr/workqueue_posix.h", 
+      "src/core/lib/iomgr/workqueue_windows.c", 
+      "src/core/lib/iomgr/workqueue_windows.h", 
+      "src/core/lib/json/json.c", 
+      "src/core/lib/json/json.h", 
+      "src/core/lib/json/json_common.h", 
+      "src/core/lib/json/json_reader.c", 
+      "src/core/lib/json/json_reader.h", 
+      "src/core/lib/json/json_string.c", 
+      "src/core/lib/json/json_writer.c", 
+      "src/core/lib/json/json_writer.h", 
+      "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.c", 
+      "src/core/lib/proto/grpc/lb/v0/load_balancer.pb.h", 
+      "src/core/lib/statistics/census_interface.h", 
+      "src/core/lib/statistics/census_rpc_stats.h", 
+      "src/core/lib/surface/alarm.c", 
+      "src/core/lib/surface/api_trace.c", 
+      "src/core/lib/surface/api_trace.h", 
+      "src/core/lib/surface/byte_buffer.c", 
+      "src/core/lib/surface/byte_buffer_reader.c", 
+      "src/core/lib/surface/call.c", 
+      "src/core/lib/surface/call.h", 
+      "src/core/lib/surface/call_details.c", 
+      "src/core/lib/surface/call_log_batch.c", 
+      "src/core/lib/surface/call_test_only.h", 
+      "src/core/lib/surface/channel.c", 
+      "src/core/lib/surface/channel.h", 
+      "src/core/lib/surface/channel_connectivity.c", 
+      "src/core/lib/surface/channel_create.c", 
+      "src/core/lib/surface/channel_init.c", 
+      "src/core/lib/surface/channel_init.h", 
+      "src/core/lib/surface/channel_ping.c", 
+      "src/core/lib/surface/channel_stack_type.c", 
+      "src/core/lib/surface/channel_stack_type.h", 
+      "src/core/lib/surface/completion_queue.c", 
+      "src/core/lib/surface/completion_queue.h", 
+      "src/core/lib/surface/event_string.c", 
+      "src/core/lib/surface/event_string.h", 
+      "src/core/lib/surface/init.c", 
+      "src/core/lib/surface/init.h", 
+      "src/core/lib/surface/init_unsecure.c", 
+      "src/core/lib/surface/lame_client.c", 
+      "src/core/lib/surface/lame_client.h", 
+      "src/core/lib/surface/metadata_array.c", 
+      "src/core/lib/surface/server.c", 
+      "src/core/lib/surface/server.h", 
+      "src/core/lib/surface/server_chttp2.c", 
+      "src/core/lib/surface/surface_trace.h", 
+      "src/core/lib/surface/validate_metadata.c", 
+      "src/core/lib/surface/version.c", 
+      "src/core/lib/transport/byte_stream.c", 
+      "src/core/lib/transport/byte_stream.h", 
+      "src/core/lib/transport/chttp2/alpn.c", 
+      "src/core/lib/transport/chttp2/alpn.h", 
+      "src/core/lib/transport/chttp2/bin_encoder.c", 
+      "src/core/lib/transport/chttp2/bin_encoder.h", 
+      "src/core/lib/transport/chttp2/frame.h", 
+      "src/core/lib/transport/chttp2/frame_data.c", 
+      "src/core/lib/transport/chttp2/frame_data.h", 
+      "src/core/lib/transport/chttp2/frame_goaway.c", 
+      "src/core/lib/transport/chttp2/frame_goaway.h", 
+      "src/core/lib/transport/chttp2/frame_ping.c", 
+      "src/core/lib/transport/chttp2/frame_ping.h", 
+      "src/core/lib/transport/chttp2/frame_rst_stream.c", 
+      "src/core/lib/transport/chttp2/frame_rst_stream.h", 
+      "src/core/lib/transport/chttp2/frame_settings.c", 
+      "src/core/lib/transport/chttp2/frame_settings.h", 
+      "src/core/lib/transport/chttp2/frame_window_update.c", 
+      "src/core/lib/transport/chttp2/frame_window_update.h", 
+      "src/core/lib/transport/chttp2/hpack_encoder.c", 
+      "src/core/lib/transport/chttp2/hpack_encoder.h", 
+      "src/core/lib/transport/chttp2/hpack_parser.c", 
+      "src/core/lib/transport/chttp2/hpack_parser.h", 
+      "src/core/lib/transport/chttp2/hpack_table.c", 
+      "src/core/lib/transport/chttp2/hpack_table.h", 
+      "src/core/lib/transport/chttp2/http2_errors.h", 
+      "src/core/lib/transport/chttp2/huffsyms.c", 
+      "src/core/lib/transport/chttp2/huffsyms.h", 
+      "src/core/lib/transport/chttp2/incoming_metadata.c", 
+      "src/core/lib/transport/chttp2/incoming_metadata.h", 
+      "src/core/lib/transport/chttp2/internal.h", 
+      "src/core/lib/transport/chttp2/parsing.c", 
+      "src/core/lib/transport/chttp2/status_conversion.c", 
+      "src/core/lib/transport/chttp2/status_conversion.h", 
+      "src/core/lib/transport/chttp2/stream_lists.c", 
+      "src/core/lib/transport/chttp2/stream_map.c", 
+      "src/core/lib/transport/chttp2/stream_map.h", 
+      "src/core/lib/transport/chttp2/timeout_encoding.c", 
+      "src/core/lib/transport/chttp2/timeout_encoding.h", 
+      "src/core/lib/transport/chttp2/varint.c", 
+      "src/core/lib/transport/chttp2/varint.h", 
+      "src/core/lib/transport/chttp2/writing.c", 
+      "src/core/lib/transport/chttp2_transport.c", 
+      "src/core/lib/transport/chttp2_transport.h", 
+      "src/core/lib/transport/connectivity_state.c", 
+      "src/core/lib/transport/connectivity_state.h", 
+      "src/core/lib/transport/metadata.c", 
+      "src/core/lib/transport/metadata.h", 
+      "src/core/lib/transport/metadata_batch.c", 
+      "src/core/lib/transport/metadata_batch.h", 
+      "src/core/lib/transport/static_metadata.c", 
+      "src/core/lib/transport/static_metadata.h", 
+      "src/core/lib/transport/transport.c", 
+      "src/core/lib/transport/transport.h", 
+      "src/core/lib/transport/transport_impl.h", 
+      "src/core/lib/transport/transport_op_string.c"
     ], 
     "third_party": false, 
     "type": "lib"
@@ -4860,14 +4849,14 @@
     ], 
     "headers": [
       "include/grpc/grpc_zookeeper.h", 
-      "src/core/client_config/resolvers/zookeeper_resolver.h"
+      "src/core/lib/client_config/resolvers/zookeeper_resolver.h"
     ], 
     "language": "c", 
     "name": "grpc_zookeeper", 
     "src": [
       "include/grpc/grpc_zookeeper.h", 
-      "src/core/client_config/resolvers/zookeeper_resolver.c", 
-      "src/core/client_config/resolvers/zookeeper_resolver.h"
+      "src/core/lib/client_config/resolvers/zookeeper_resolver.c", 
+      "src/core/lib/client_config/resolvers/zookeeper_resolver.h"
     ], 
     "third_party": false, 
     "type": "lib"
@@ -5889,6 +5878,18 @@
     ], 
     "headers": [], 
     "language": "c++", 
+    "name": "boringssl_asn1_test_lib", 
+    "src": [], 
+    "third_party": true, 
+    "type": "lib"
+  }, 
+  {
+    "deps": [
+      "boringssl", 
+      "boringssl_test_util"
+    ], 
+    "headers": [], 
+    "language": "c++", 
     "name": "boringssl_base64_test_lib", 
     "src": [], 
     "third_party": true, 
diff --git a/tools/run_tests/stress_test/README.md b/tools/run_tests/stress_test/README.md
index 80e4cd5..1a48e90 100644
--- a/tools/run_tests/stress_test/README.md
+++ b/tools/run_tests/stress_test/README.md
@@ -30,6 +30,27 @@
 3. Install Google Cloud SDK. Instructions [here](https://cloud.google.com/sdk/). This installs the `gcloud` tool
 4. Install `kubectl`, Kubernetes command line tool using `gcloud`. i.e
     - `$ gcloud components update kubectl`
+    - NOTE: If you are running this from a GCE instance, the command may fail with the following error:
+    ```
+     You cannot perform this action because this Cloud SDK installation is 
+     managed by an external package manager. If you would like to get the
+     latest version, please see our main download page at:
+
+     https://developers.google.com/cloud/sdk/
+
+     ERROR: (gcloud.components.update) The component manager is disabled for this installation
+    ```
+    -- If so, you will have to manually install Cloud SDK by doing the following
+    ```shell
+      $ # The following installs latest Cloud SDK and updates the PATH
+      $ # (Accept the default values when prompted)
+      $ curl https://sdk.cloud.google.com | bash
+      $ exec -l $SHELL
+      $ # Set the defaults. Pick the default GCE credentials when prompted (The service account
+      $ # name will have a name similar to: "xxx-compute@developer.gserviceaccount.com")
+      $ gcloud init
+    ``` 
+
 5. Install Google python client apis:
     - `‘$ sudo pip install --upgrade google-api-python-client’`
     -  **Note**: Do `$ sudo apt-get install python-pip` (or `$ easy_install -U pip`) if you do not have pip
diff --git a/tools/run_tests/stress_test/STRESS_CLIENT_SPEC.md b/tools/run_tests/stress_test/STRESS_CLIENT_SPEC.md
new file mode 100644
index 0000000..c4c9f14
--- /dev/null
+++ b/tools/run_tests/stress_test/STRESS_CLIENT_SPEC.md
@@ -0,0 +1,25 @@
+﻿Stress Test client Specification
+=========================
+This document specifies the features a stress test client should implement in order to work with the stress testing framework. The stress test clients are executed against the existing interop test servers.
+
+**Requirements**
+--------------
+**1.** A stress test client should be able to repeatedly execute one or more of the existing 'interop test cases'. It may just be a wrapper around the existing interop test client. The exact command line arguments the client should support are listed in _Table 1_ below.
+
+**2.** The stress test client must implement a metrics server defined by _[metrics.proto](https://github.com/grpc/grpc/blob/master/src/proto/grpc/testing/metrics.proto)_ and must expose _qps_ as a long-valued Gauge. The client can track the overall _qps_ in one Gauge or in multiple Gagues (for example: One per Channel or Stub). 
+ The framework periodically queries the _qps_ by calling the `GetAllGauges()` method (the framework assumes that all the returned Gauges are _qps_ Gauges) and uses this to determine if the stress test client is running or crashed or stalled.
+> *Note:* In this context, the term  _**qps**_  means _interop test cases per second_  (not _messages per second_ or _rpc calls per second_)
+
+
+**Table 1:** Command line arguments that should be supported by the stress test client.
+
+>_**Note** The current C++ [stress client](https://github.com/grpc/grpc/blob/master/test/cpp/interop/stress_test.cc) supports more flags than those listed here but those flags will soon be deprecated_|
+
+Parameter             |                    Description
+----------------------|---------------------------------
+`--server_address`    | The stress client should accept a list of server addresses in the following format:<br> ```<name_1>:<port_1>,<name_2>:<port_2>..<name_N>:<port_N>``` <br> _Note:_ `<name>` can be either server name or IP address.<br><br>_Type:_ string <br>_default:_ ```localhost:8080``` <br>_Example:_ ``foo.foobar.com:8080,bar.foobar.com:8080`` <br><br> Currently, the stress test framework only passes one server address to the client.
+`--test_cases`        |   List of test cases along with the relative weights in the following format:<br> `<testcase_1:w_1>,<testcase_2:w_2>...<testcase_n:w_n>`. <br> The test cases names are the same as those currently used by the interop clients<br><br>_Type:_ string <br>_Example:_ `empty_unary:20,large_unary:10,empty_stream:70` <br>(The stress client would then make `empty_unary` calls 20% of the time, `large_unary` calls 10% of the time and `empty_stream` calls 70% of the time.) <br>_Note:_ The weights need not add up to 100.
+`--test_duration-secs`      | The test duration in seconds. A value of -1 means that the test should run forever until forcefully terminated. <br>_Type:_ int <br>_default:_ -1
+`--num_channels_per_server` | Number of channels (i.e connections) to each server. <br> _Type:_ int <br> _default:_ 1 <br><br> _Note:_ Unfortunately, the term `channel` is used differently in `grpc-java` and `C based grpc`. In this context, this really means "number of connections to the server"
+`--num_stubs_per_channel `  | Number of client stubs per each connection to server.<br>_Type:_ int <br>_default:_ 1
+`--metrics_port`            | The port at which the stress client exposes [QPS metrics](https://github.com/grpc/grpc/blob/master/src/proto/grpc/testing/metrics.proto). <br>_Type:_ int <br>_default:_ 8081
diff --git a/tools/run_tests/tests.json b/tools/run_tests/tests.json
index e73f050..c7c3417 100644
--- a/tools/run_tests/tests.json
+++ b/tools/run_tests/tests.json
@@ -1094,7 +1094,7 @@
     "flaky": false, 
     "gtest": false, 
     "language": "c", 
-    "name": "httpcli_format_request_test", 
+    "name": "http_parser_test", 
     "platforms": [
       "linux", 
       "mac", 
@@ -1115,7 +1115,7 @@
     "flaky": false, 
     "gtest": false, 
     "language": "c", 
-    "name": "httpcli_parser_test", 
+    "name": "httpcli_format_request_test", 
     "platforms": [
       "linux", 
       "mac", 
@@ -1335,7 +1335,7 @@
     ], 
     "cpu_cost": 1.0, 
     "exclude_configs": [], 
-    "flaky": false, 
+    "flaky": true, 
     "gtest": false, 
     "language": "c", 
     "name": "mlog_test", 
@@ -2317,9 +2317,7 @@
       "posix"
     ], 
     "cpu_cost": 0.5, 
-    "exclude_configs": [
-      "tsan"
-    ], 
+    "exclude_configs": [], 
     "flaky": false, 
     "gtest": false, 
     "language": "c++", 
@@ -2338,9 +2336,7 @@
       "posix"
     ], 
     "cpu_cost": 10, 
-    "exclude_configs": [
-      "tsan"
-    ], 
+    "exclude_configs": [], 
     "flaky": false, 
     "gtest": false, 
     "language": "c++", 
@@ -2797,6 +2793,30 @@
     ], 
     "flaky": false, 
     "language": "c++", 
+    "name": "boringssl_asn1_test", 
+    "platforms": [
+      "linux", 
+      "mac", 
+      "posix", 
+      "windows"
+    ]
+  }, 
+  {
+    "args": [], 
+    "boringssl": true, 
+    "ci_platforms": [
+      "linux", 
+      "mac", 
+      "posix", 
+      "windows"
+    ], 
+    "cpu_cost": 1.0, 
+    "defaults": "boringssl", 
+    "exclude_configs": [
+      "asan"
+    ], 
+    "flaky": false, 
+    "language": "c++", 
     "name": "boringssl_base64_test", 
     "platforms": [
       "linux", 
@@ -13478,688 +13498,6 @@
       "bad_hostname"
     ], 
     "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "binary_metadata"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "call_creds"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "cancel_after_accept"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 0.1, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "cancel_after_client_done"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 0.1, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "cancel_after_invoke"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 0.1, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "cancel_before_invoke"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 0.1, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "cancel_in_a_vacuum"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 0.1, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "cancel_with_status"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 0.1, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "compressed_payload"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 0.1, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "empty_batch"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "graceful_server_shutdown"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 0.1, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "high_initial_seqno"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "hpack_size"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "invoke_large_request"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "large_metadata"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "max_concurrent_streams"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "max_message_length"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 0.1, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "negative_deadline"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "no_op"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "payload"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 0.1, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "ping_pong_streaming"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "registered_call"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "request_with_flags"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "request_with_payload"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "server_finishes_request"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "shutdown_finishes_calls"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "shutdown_finishes_tags"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "simple_metadata"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "simple_request"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "trailing_metadata"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "bad_hostname"
-    ], 
-    "ci_platforms": [
       "linux", 
       "mac", 
       "posix"
@@ -20956,666 +20294,6 @@
       "bad_hostname"
     ], 
     "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "binary_metadata"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "cancel_after_accept"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 0.1, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "cancel_after_client_done"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 0.1, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "cancel_after_invoke"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 0.1, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "cancel_before_invoke"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 0.1, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "cancel_in_a_vacuum"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 0.1, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "cancel_with_status"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 0.1, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "compressed_payload"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 0.1, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "empty_batch"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "graceful_server_shutdown"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 0.1, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "high_initial_seqno"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "hpack_size"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "invoke_large_request"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "large_metadata"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "max_concurrent_streams"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "max_message_length"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 0.1, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "negative_deadline"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "no_op"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "payload"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 0.1, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "ping_pong_streaming"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "registered_call"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "request_with_flags"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "request_with_payload"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "server_finishes_request"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "shutdown_finishes_calls"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "shutdown_finishes_tags"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "simple_metadata"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "simple_request"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "trailing_metadata"
-    ], 
-    "ci_platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ], 
-    "cpu_cost": 1.0, 
-    "exclude_configs": [], 
-    "flaky": false, 
-    "language": "c", 
-    "name": "h2_uchannel_nosec_test", 
-    "platforms": [
-      "windows", 
-      "linux", 
-      "mac", 
-      "posix"
-    ]
-  }, 
-  {
-    "args": [
-      "bad_hostname"
-    ], 
-    "ci_platforms": [
       "linux", 
       "mac", 
       "posix"
diff --git a/vsprojects/buildtests_c.sln b/vsprojects/buildtests_c.sln
index 8c64423..96dc4eb 100644
--- a/vsprojects/buildtests_c.sln
+++ b/vsprojects/buildtests_c.sln
@@ -663,7 +663,7 @@
 		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
 	EndProjectSection
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "httpcli_format_request_test", "vcxproj\test\httpcli_format_request_test\httpcli_format_request_test.vcxproj", "{A43C3292-CAE7-1B8C-A5FD-52D9E3DCFD82}"
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "http_parser_test", "vcxproj\test\http_parser_test\http_parser_test.vcxproj", "{49D7E690-BDA1-5236-1ABF-3D81C1559DF7}"
 	ProjectSection(myProperties) = preProject
         	lib = "False"
 	EndProjectSection
@@ -674,7 +674,7 @@
 		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
 	EndProjectSection
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "httpcli_parser_test", "vcxproj\test\httpcli_parser_test\httpcli_parser_test.vcxproj", "{B6F60D1C-D4F3-0F1A-4A2F-9134629B7848}"
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "httpcli_format_request_test", "vcxproj\test\httpcli_format_request_test\httpcli_format_request_test.vcxproj", "{A43C3292-CAE7-1B8C-A5FD-52D9E3DCFD82}"
 	ProjectSection(myProperties) = preProject
         	lib = "False"
 	EndProjectSection
@@ -1241,18 +1241,6 @@
 		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
 	EndProjectSection
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "h2_uchannel_test", "vcxproj\test/end2end/fixtures\h2_uchannel_test\h2_uchannel_test.vcxproj", "{E39D59C4-F5CB-7D68-DA6B-C6BC93843435}"
-	ProjectSection(myProperties) = preProject
-        	lib = "False"
-	EndProjectSection
-	ProjectSection(ProjectDependencies) = postProject
-		{1F1F9084-2A93-B80E-364F-5754894AFAB4} = {1F1F9084-2A93-B80E-364F-5754894AFAB4}
-		{17BCAFC0-5FDC-4C94-AEB9-95F3E220614B} = {17BCAFC0-5FDC-4C94-AEB9-95F3E220614B}
-		{29D16885-7228-4C31-81ED-5F9187C7F2A9} = {29D16885-7228-4C31-81ED-5F9187C7F2A9}
-		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
-		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
-	EndProjectSection
-EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "h2_census_nosec_test", "vcxproj\test/end2end/fixtures\h2_census_nosec_test\h2_census_nosec_test.vcxproj", "{A8039D43-910E-4248-2A22-74366E8C4DCD}"
 	ProjectSection(myProperties) = preProject
         	lib = "False"
@@ -1349,18 +1337,6 @@
 		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
 	EndProjectSection
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "h2_uchannel_nosec_test", "vcxproj\test/end2end/fixtures\h2_uchannel_nosec_test\h2_uchannel_nosec_test.vcxproj", "{BD79A629-4181-DB5E-C28F-44EB280A6F91}"
-	ProjectSection(myProperties) = preProject
-        	lib = "False"
-	EndProjectSection
-	ProjectSection(ProjectDependencies) = postProject
-		{47C2CB41-4E9F-58B6-F606-F6FAED5D00ED} = {47C2CB41-4E9F-58B6-F606-F6FAED5D00ED}
-		{0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF} = {0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF}
-		{46CEDFFF-9692-456A-AA24-38B5D6BCF4C5} = {46CEDFFF-9692-456A-AA24-38B5D6BCF4C5}
-		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
-		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
-	EndProjectSection
-EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Win32 = Debug|Win32
@@ -2429,6 +2405,22 @@
 		{FF2CEE6D-850F-E22C-53A0-8C5912B14B20}.Release-DLL|Win32.Build.0 = Release|Win32
 		{FF2CEE6D-850F-E22C-53A0-8C5912B14B20}.Release-DLL|x64.ActiveCfg = Release|x64
 		{FF2CEE6D-850F-E22C-53A0-8C5912B14B20}.Release-DLL|x64.Build.0 = Release|x64
+		{49D7E690-BDA1-5236-1ABF-3D81C1559DF7}.Debug|Win32.ActiveCfg = Debug|Win32
+		{49D7E690-BDA1-5236-1ABF-3D81C1559DF7}.Debug|x64.ActiveCfg = Debug|x64
+		{49D7E690-BDA1-5236-1ABF-3D81C1559DF7}.Release|Win32.ActiveCfg = Release|Win32
+		{49D7E690-BDA1-5236-1ABF-3D81C1559DF7}.Release|x64.ActiveCfg = Release|x64
+		{49D7E690-BDA1-5236-1ABF-3D81C1559DF7}.Debug|Win32.Build.0 = Debug|Win32
+		{49D7E690-BDA1-5236-1ABF-3D81C1559DF7}.Debug|x64.Build.0 = Debug|x64
+		{49D7E690-BDA1-5236-1ABF-3D81C1559DF7}.Release|Win32.Build.0 = Release|Win32
+		{49D7E690-BDA1-5236-1ABF-3D81C1559DF7}.Release|x64.Build.0 = Release|x64
+		{49D7E690-BDA1-5236-1ABF-3D81C1559DF7}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
+		{49D7E690-BDA1-5236-1ABF-3D81C1559DF7}.Debug-DLL|Win32.Build.0 = Debug|Win32
+		{49D7E690-BDA1-5236-1ABF-3D81C1559DF7}.Debug-DLL|x64.ActiveCfg = Debug|x64
+		{49D7E690-BDA1-5236-1ABF-3D81C1559DF7}.Debug-DLL|x64.Build.0 = Debug|x64
+		{49D7E690-BDA1-5236-1ABF-3D81C1559DF7}.Release-DLL|Win32.ActiveCfg = Release|Win32
+		{49D7E690-BDA1-5236-1ABF-3D81C1559DF7}.Release-DLL|Win32.Build.0 = Release|Win32
+		{49D7E690-BDA1-5236-1ABF-3D81C1559DF7}.Release-DLL|x64.ActiveCfg = Release|x64
+		{49D7E690-BDA1-5236-1ABF-3D81C1559DF7}.Release-DLL|x64.Build.0 = Release|x64
 		{A43C3292-CAE7-1B8C-A5FD-52D9E3DCFD82}.Debug|Win32.ActiveCfg = Debug|Win32
 		{A43C3292-CAE7-1B8C-A5FD-52D9E3DCFD82}.Debug|x64.ActiveCfg = Debug|x64
 		{A43C3292-CAE7-1B8C-A5FD-52D9E3DCFD82}.Release|Win32.ActiveCfg = Release|Win32
@@ -2445,22 +2437,6 @@
 		{A43C3292-CAE7-1B8C-A5FD-52D9E3DCFD82}.Release-DLL|Win32.Build.0 = Release|Win32
 		{A43C3292-CAE7-1B8C-A5FD-52D9E3DCFD82}.Release-DLL|x64.ActiveCfg = Release|x64
 		{A43C3292-CAE7-1B8C-A5FD-52D9E3DCFD82}.Release-DLL|x64.Build.0 = Release|x64
-		{B6F60D1C-D4F3-0F1A-4A2F-9134629B7848}.Debug|Win32.ActiveCfg = Debug|Win32
-		{B6F60D1C-D4F3-0F1A-4A2F-9134629B7848}.Debug|x64.ActiveCfg = Debug|x64
-		{B6F60D1C-D4F3-0F1A-4A2F-9134629B7848}.Release|Win32.ActiveCfg = Release|Win32
-		{B6F60D1C-D4F3-0F1A-4A2F-9134629B7848}.Release|x64.ActiveCfg = Release|x64
-		{B6F60D1C-D4F3-0F1A-4A2F-9134629B7848}.Debug|Win32.Build.0 = Debug|Win32
-		{B6F60D1C-D4F3-0F1A-4A2F-9134629B7848}.Debug|x64.Build.0 = Debug|x64
-		{B6F60D1C-D4F3-0F1A-4A2F-9134629B7848}.Release|Win32.Build.0 = Release|Win32
-		{B6F60D1C-D4F3-0F1A-4A2F-9134629B7848}.Release|x64.Build.0 = Release|x64
-		{B6F60D1C-D4F3-0F1A-4A2F-9134629B7848}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
-		{B6F60D1C-D4F3-0F1A-4A2F-9134629B7848}.Debug-DLL|Win32.Build.0 = Debug|Win32
-		{B6F60D1C-D4F3-0F1A-4A2F-9134629B7848}.Debug-DLL|x64.ActiveCfg = Debug|x64
-		{B6F60D1C-D4F3-0F1A-4A2F-9134629B7848}.Debug-DLL|x64.Build.0 = Debug|x64
-		{B6F60D1C-D4F3-0F1A-4A2F-9134629B7848}.Release-DLL|Win32.ActiveCfg = Release|Win32
-		{B6F60D1C-D4F3-0F1A-4A2F-9134629B7848}.Release-DLL|Win32.Build.0 = Release|Win32
-		{B6F60D1C-D4F3-0F1A-4A2F-9134629B7848}.Release-DLL|x64.ActiveCfg = Release|x64
-		{B6F60D1C-D4F3-0F1A-4A2F-9134629B7848}.Release-DLL|x64.Build.0 = Release|x64
 		{117CA7AD-C42B-9217-6C95-42A801777BC5}.Debug|Win32.ActiveCfg = Debug|Win32
 		{117CA7AD-C42B-9217-6C95-42A801777BC5}.Debug|x64.ActiveCfg = Debug|x64
 		{117CA7AD-C42B-9217-6C95-42A801777BC5}.Release|Win32.ActiveCfg = Release|Win32
@@ -3245,22 +3221,6 @@
 		{A9092608-E45E-AC96-6533-A6E7DD98211D}.Release-DLL|Win32.Build.0 = Release|Win32
 		{A9092608-E45E-AC96-6533-A6E7DD98211D}.Release-DLL|x64.ActiveCfg = Release|x64
 		{A9092608-E45E-AC96-6533-A6E7DD98211D}.Release-DLL|x64.Build.0 = Release|x64
-		{E39D59C4-F5CB-7D68-DA6B-C6BC93843435}.Debug|Win32.ActiveCfg = Debug|Win32
-		{E39D59C4-F5CB-7D68-DA6B-C6BC93843435}.Debug|x64.ActiveCfg = Debug|x64
-		{E39D59C4-F5CB-7D68-DA6B-C6BC93843435}.Release|Win32.ActiveCfg = Release|Win32
-		{E39D59C4-F5CB-7D68-DA6B-C6BC93843435}.Release|x64.ActiveCfg = Release|x64
-		{E39D59C4-F5CB-7D68-DA6B-C6BC93843435}.Debug|Win32.Build.0 = Debug|Win32
-		{E39D59C4-F5CB-7D68-DA6B-C6BC93843435}.Debug|x64.Build.0 = Debug|x64
-		{E39D59C4-F5CB-7D68-DA6B-C6BC93843435}.Release|Win32.Build.0 = Release|Win32
-		{E39D59C4-F5CB-7D68-DA6B-C6BC93843435}.Release|x64.Build.0 = Release|x64
-		{E39D59C4-F5CB-7D68-DA6B-C6BC93843435}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
-		{E39D59C4-F5CB-7D68-DA6B-C6BC93843435}.Debug-DLL|Win32.Build.0 = Debug|Win32
-		{E39D59C4-F5CB-7D68-DA6B-C6BC93843435}.Debug-DLL|x64.ActiveCfg = Debug|x64
-		{E39D59C4-F5CB-7D68-DA6B-C6BC93843435}.Debug-DLL|x64.Build.0 = Debug|x64
-		{E39D59C4-F5CB-7D68-DA6B-C6BC93843435}.Release-DLL|Win32.ActiveCfg = Release|Win32
-		{E39D59C4-F5CB-7D68-DA6B-C6BC93843435}.Release-DLL|Win32.Build.0 = Release|Win32
-		{E39D59C4-F5CB-7D68-DA6B-C6BC93843435}.Release-DLL|x64.ActiveCfg = Release|x64
-		{E39D59C4-F5CB-7D68-DA6B-C6BC93843435}.Release-DLL|x64.Build.0 = Release|x64
 		{A8039D43-910E-4248-2A22-74366E8C4DCD}.Debug|Win32.ActiveCfg = Debug|Win32
 		{A8039D43-910E-4248-2A22-74366E8C4DCD}.Debug|x64.ActiveCfg = Debug|x64
 		{A8039D43-910E-4248-2A22-74366E8C4DCD}.Release|Win32.ActiveCfg = Release|Win32
@@ -3389,22 +3349,6 @@
 		{485E6713-487D-F274-BDE7-5D29300C93FE}.Release-DLL|Win32.Build.0 = Release|Win32
 		{485E6713-487D-F274-BDE7-5D29300C93FE}.Release-DLL|x64.ActiveCfg = Release|x64
 		{485E6713-487D-F274-BDE7-5D29300C93FE}.Release-DLL|x64.Build.0 = Release|x64
-		{BD79A629-4181-DB5E-C28F-44EB280A6F91}.Debug|Win32.ActiveCfg = Debug|Win32
-		{BD79A629-4181-DB5E-C28F-44EB280A6F91}.Debug|x64.ActiveCfg = Debug|x64
-		{BD79A629-4181-DB5E-C28F-44EB280A6F91}.Release|Win32.ActiveCfg = Release|Win32
-		{BD79A629-4181-DB5E-C28F-44EB280A6F91}.Release|x64.ActiveCfg = Release|x64
-		{BD79A629-4181-DB5E-C28F-44EB280A6F91}.Debug|Win32.Build.0 = Debug|Win32
-		{BD79A629-4181-DB5E-C28F-44EB280A6F91}.Debug|x64.Build.0 = Debug|x64
-		{BD79A629-4181-DB5E-C28F-44EB280A6F91}.Release|Win32.Build.0 = Release|Win32
-		{BD79A629-4181-DB5E-C28F-44EB280A6F91}.Release|x64.Build.0 = Release|x64
-		{BD79A629-4181-DB5E-C28F-44EB280A6F91}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
-		{BD79A629-4181-DB5E-C28F-44EB280A6F91}.Debug-DLL|Win32.Build.0 = Debug|Win32
-		{BD79A629-4181-DB5E-C28F-44EB280A6F91}.Debug-DLL|x64.ActiveCfg = Debug|x64
-		{BD79A629-4181-DB5E-C28F-44EB280A6F91}.Debug-DLL|x64.Build.0 = Debug|x64
-		{BD79A629-4181-DB5E-C28F-44EB280A6F91}.Release-DLL|Win32.ActiveCfg = Release|Win32
-		{BD79A629-4181-DB5E-C28F-44EB280A6F91}.Release-DLL|Win32.Build.0 = Release|Win32
-		{BD79A629-4181-DB5E-C28F-44EB280A6F91}.Release-DLL|x64.ActiveCfg = Release|x64
-		{BD79A629-4181-DB5E-C28F-44EB280A6F91}.Release-DLL|x64.Build.0 = Release|x64
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
diff --git a/vsprojects/grpc.sln b/vsprojects/grpc.sln
index 3f6b337..851bca0 100644
--- a/vsprojects/grpc.sln
+++ b/vsprojects/grpc.sln
@@ -92,6 +92,11 @@
 		{29D16885-7228-4C31-81ED-5F9187C7F2A9} = {29D16885-7228-4C31-81ED-5F9187C7F2A9}
 	EndProjectSection
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "grpc++_codegen_lib", "vcxproj\.\grpc++_codegen_lib\grpc++_codegen_lib.vcxproj", "{AAC6AF12-94C8-4A3C-A1BF-DAA4738F4500}"
+	ProjectSection(myProperties) = preProject
+        	lib = "True"
+	EndProjectSection
+EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "grpc++_unsecure", "vcxproj\.\grpc++_unsecure\grpc++_unsecure.vcxproj", "{6EE56155-DF7C-4F6E-BFC4-F6F776BEB211}"
 	ProjectSection(myProperties) = preProject
         	lib = "True"
@@ -341,6 +346,22 @@
 		{C187A093-A0FE-489D-A40A-6E33DE0F9FEB}.Release-DLL|Win32.Build.0 = Release-DLL|Win32
 		{C187A093-A0FE-489D-A40A-6E33DE0F9FEB}.Release-DLL|x64.ActiveCfg = Release-DLL|x64
 		{C187A093-A0FE-489D-A40A-6E33DE0F9FEB}.Release-DLL|x64.Build.0 = Release-DLL|x64
+		{AAC6AF12-94C8-4A3C-A1BF-DAA4738F4500}.Debug|Win32.ActiveCfg = Debug|Win32
+		{AAC6AF12-94C8-4A3C-A1BF-DAA4738F4500}.Debug|x64.ActiveCfg = Debug|x64
+		{AAC6AF12-94C8-4A3C-A1BF-DAA4738F4500}.Release|Win32.ActiveCfg = Release|Win32
+		{AAC6AF12-94C8-4A3C-A1BF-DAA4738F4500}.Release|x64.ActiveCfg = Release|x64
+		{AAC6AF12-94C8-4A3C-A1BF-DAA4738F4500}.Debug|Win32.Build.0 = Debug|Win32
+		{AAC6AF12-94C8-4A3C-A1BF-DAA4738F4500}.Debug|x64.Build.0 = Debug|x64
+		{AAC6AF12-94C8-4A3C-A1BF-DAA4738F4500}.Release|Win32.Build.0 = Release|Win32
+		{AAC6AF12-94C8-4A3C-A1BF-DAA4738F4500}.Release|x64.Build.0 = Release|x64
+		{AAC6AF12-94C8-4A3C-A1BF-DAA4738F4500}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
+		{AAC6AF12-94C8-4A3C-A1BF-DAA4738F4500}.Debug-DLL|Win32.Build.0 = Debug|Win32
+		{AAC6AF12-94C8-4A3C-A1BF-DAA4738F4500}.Debug-DLL|x64.ActiveCfg = Debug|x64
+		{AAC6AF12-94C8-4A3C-A1BF-DAA4738F4500}.Debug-DLL|x64.Build.0 = Debug|x64
+		{AAC6AF12-94C8-4A3C-A1BF-DAA4738F4500}.Release-DLL|Win32.ActiveCfg = Release|Win32
+		{AAC6AF12-94C8-4A3C-A1BF-DAA4738F4500}.Release-DLL|Win32.Build.0 = Release|Win32
+		{AAC6AF12-94C8-4A3C-A1BF-DAA4738F4500}.Release-DLL|x64.ActiveCfg = Release|x64
+		{AAC6AF12-94C8-4A3C-A1BF-DAA4738F4500}.Release-DLL|x64.Build.0 = Release|x64
 		{6EE56155-DF7C-4F6E-BFC4-F6F776BEB211}.Debug|Win32.ActiveCfg = Debug|Win32
 		{6EE56155-DF7C-4F6E-BFC4-F6F776BEB211}.Debug|x64.ActiveCfg = Debug|x64
 		{6EE56155-DF7C-4F6E-BFC4-F6F776BEB211}.Release|Win32.ActiveCfg = Release|Win32
diff --git a/vsprojects/grpc_protoc_plugins.sln b/vsprojects/grpc_protoc_plugins.sln
index 9471aae..444cb26 100644
--- a/vsprojects/grpc_protoc_plugins.sln
+++ b/vsprojects/grpc_protoc_plugins.sln
@@ -8,11 +8,6 @@
         	lib = "True"
 	EndProjectSection
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "grpc++_codegen_lib", "vcxproj\.\grpc++_codegen_lib\grpc++_codegen_lib.vcxproj", "{AAC6AF12-94C8-4A3C-A1BF-DAA4738F4500}"
-	ProjectSection(myProperties) = preProject
-        	lib = "True"
-	EndProjectSection
-EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "grpc_plugin_support", "vcxproj\.\grpc_plugin_support\grpc_plugin_support.vcxproj", "{B6E81D84-2ACB-41B8-8781-493A944C7817}"
 	ProjectSection(myProperties) = preProject
         	lib = "True"
@@ -77,14 +72,6 @@
 		{A828FD72-44CE-4EA5-8966-6E4624458D58}.Debug|x64.Build.0 = Debug|x64
 		{A828FD72-44CE-4EA5-8966-6E4624458D58}.Release|Win32.Build.0 = Release|Win32
 		{A828FD72-44CE-4EA5-8966-6E4624458D58}.Release|x64.Build.0 = Release|x64
-		{AAC6AF12-94C8-4A3C-A1BF-DAA4738F4500}.Debug|Win32.ActiveCfg = Debug|Win32
-		{AAC6AF12-94C8-4A3C-A1BF-DAA4738F4500}.Debug|x64.ActiveCfg = Debug|x64
-		{AAC6AF12-94C8-4A3C-A1BF-DAA4738F4500}.Release|Win32.ActiveCfg = Release|Win32
-		{AAC6AF12-94C8-4A3C-A1BF-DAA4738F4500}.Release|x64.ActiveCfg = Release|x64
-		{AAC6AF12-94C8-4A3C-A1BF-DAA4738F4500}.Debug|Win32.Build.0 = Debug|Win32
-		{AAC6AF12-94C8-4A3C-A1BF-DAA4738F4500}.Debug|x64.Build.0 = Debug|x64
-		{AAC6AF12-94C8-4A3C-A1BF-DAA4738F4500}.Release|Win32.Build.0 = Release|Win32
-		{AAC6AF12-94C8-4A3C-A1BF-DAA4738F4500}.Release|x64.Build.0 = Release|x64
 		{B6E81D84-2ACB-41B8-8781-493A944C7817}.Debug|Win32.ActiveCfg = Debug|Win32
 		{B6E81D84-2ACB-41B8-8781-493A944C7817}.Debug|x64.ActiveCfg = Debug|x64
 		{B6E81D84-2ACB-41B8-8781-493A944C7817}.Release|Win32.ActiveCfg = Release|Win32
diff --git a/vsprojects/vcxproj/gpr/gpr.vcxproj b/vsprojects/vcxproj/gpr/gpr.vcxproj
index 9281fa3..cdb128e 100644
--- a/vsprojects/vcxproj/gpr/gpr.vcxproj
+++ b/vsprojects/vcxproj/gpr/gpr.vcxproj
@@ -191,107 +191,107 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\time.h" />
   </ItemGroup>
   <ItemGroup>
-    <ClInclude Include="$(SolutionDir)\..\src\core\profiling\timers.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\support\backoff.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\support\block_annotate.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\support\env.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\support\load_file.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\support\murmur_hash.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\support\stack_lockfree.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\support\string.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\support\string_win32.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\support\thd_internal.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\support\time_precise.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\support\tmpfile.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\profiling\timers.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\backoff.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\block_annotate.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\env.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\load_file.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\murmur_hash.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\stack_lockfree.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\string.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\string_win32.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\thd_internal.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\time_precise.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\tmpfile.h" />
   </ItemGroup>
   <ItemGroup>
-    <ClCompile Include="$(SolutionDir)\..\src\core\profiling\basic_timers.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\profiling\basic_timers.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\profiling\stap_timers.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\profiling\stap_timers.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\alloc.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\alloc.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\avl.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\avl.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\backoff.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\backoff.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\cmdline.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\cmdline.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\cpu_iphone.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\cpu_iphone.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\cpu_linux.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\cpu_linux.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\cpu_posix.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\cpu_posix.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\cpu_windows.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\cpu_windows.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\env_linux.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\env_linux.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\env_posix.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\env_posix.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\env_win32.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\env_win32.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\histogram.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\histogram.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\host_port.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\host_port.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\load_file.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\load_file.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\log.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\log.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\log_android.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\log_android.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\log_linux.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\log_linux.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\log_posix.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\log_posix.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\log_win32.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\log_win32.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\murmur_hash.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\murmur_hash.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\slice.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\slice.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\slice_buffer.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\slice_buffer.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\stack_lockfree.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\stack_lockfree.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\string.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\string.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\string_posix.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\string_posix.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\string_win32.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\string_win32.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\subprocess_posix.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\subprocess_posix.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\subprocess_windows.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\subprocess_windows.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\sync.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\sync.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\sync_posix.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\sync_posix.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\sync_win32.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\sync_win32.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\thd.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\thd.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\thd_posix.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\thd_posix.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\thd_win32.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\thd_win32.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\time.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\time.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\time_posix.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\time_posix.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\time_precise.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\time_precise.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\time_win32.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\time_win32.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\tls_pthread.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\tls_pthread.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\tmpfile_posix.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\tmpfile_posix.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\tmpfile_win32.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\tmpfile_win32.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\wrap_memcpy.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\wrap_memcpy.c">
     </ClCompile>
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
diff --git a/vsprojects/vcxproj/gpr/gpr.vcxproj.filters b/vsprojects/vcxproj/gpr/gpr.vcxproj.filters
index b85060f..8af6fdd 100644
--- a/vsprojects/vcxproj/gpr/gpr.vcxproj.filters
+++ b/vsprojects/vcxproj/gpr/gpr.vcxproj.filters
@@ -1,137 +1,137 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
-    <ClCompile Include="$(SolutionDir)\..\src\core\profiling\basic_timers.c">
-      <Filter>src\core\profiling</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\profiling\basic_timers.c">
+      <Filter>src\core\lib\profiling</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\profiling\stap_timers.c">
-      <Filter>src\core\profiling</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\profiling\stap_timers.c">
+      <Filter>src\core\lib\profiling</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\alloc.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\alloc.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\avl.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\avl.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\backoff.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\backoff.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\cmdline.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\cmdline.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\cpu_iphone.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\cpu_iphone.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\cpu_linux.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\cpu_linux.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\cpu_posix.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\cpu_posix.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\cpu_windows.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\cpu_windows.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\env_linux.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\env_linux.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\env_posix.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\env_posix.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\env_win32.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\env_win32.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\histogram.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\histogram.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\host_port.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\host_port.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\load_file.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\load_file.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\log.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\log.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\log_android.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\log_android.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\log_linux.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\log_linux.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\log_posix.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\log_posix.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\log_win32.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\log_win32.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\murmur_hash.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\murmur_hash.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\slice.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\slice.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\slice_buffer.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\slice_buffer.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\stack_lockfree.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\stack_lockfree.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\string.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\string.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\string_posix.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\string_posix.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\string_win32.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\string_win32.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\subprocess_posix.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\subprocess_posix.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\subprocess_windows.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\subprocess_windows.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\sync.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\sync.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\sync_posix.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\sync_posix.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\sync_win32.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\sync_win32.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\thd.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\thd.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\thd_posix.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\thd_posix.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\thd_win32.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\thd_win32.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\time.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\time.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\time_posix.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\time_posix.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\time_precise.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\time_precise.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\time_win32.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\time_win32.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\tls_pthread.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\tls_pthread.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\tmpfile_posix.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\tmpfile_posix.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\tmpfile_win32.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\tmpfile_win32.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\support\wrap_memcpy.c">
-      <Filter>src\core\support</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\lib\support\wrap_memcpy.c">
+      <Filter>src\core\lib\support</Filter>
     </ClCompile>
   </ItemGroup>
   <ItemGroup>
@@ -263,41 +263,41 @@
     </ClInclude>
   </ItemGroup>
   <ItemGroup>
-    <ClInclude Include="$(SolutionDir)\..\src\core\profiling\timers.h">
-      <Filter>src\core\profiling</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\profiling\timers.h">
+      <Filter>src\core\lib\profiling</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\support\backoff.h">
-      <Filter>src\core\support</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\backoff.h">
+      <Filter>src\core\lib\support</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\support\block_annotate.h">
-      <Filter>src\core\support</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\block_annotate.h">
+      <Filter>src\core\lib\support</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\support\env.h">
-      <Filter>src\core\support</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\env.h">
+      <Filter>src\core\lib\support</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\support\load_file.h">
-      <Filter>src\core\support</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\load_file.h">
+      <Filter>src\core\lib\support</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\support\murmur_hash.h">
-      <Filter>src\core\support</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\murmur_hash.h">
+      <Filter>src\core\lib\support</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\support\stack_lockfree.h">
-      <Filter>src\core\support</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\stack_lockfree.h">
+      <Filter>src\core\lib\support</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\support\string.h">
-      <Filter>src\core\support</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\string.h">
+      <Filter>src\core\lib\support</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\support\string_win32.h">
-      <Filter>src\core\support</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\string_win32.h">
+      <Filter>src\core\lib\support</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\support\thd_internal.h">
-      <Filter>src\core\support</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\thd_internal.h">
+      <Filter>src\core\lib\support</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\support\time_precise.h">
-      <Filter>src\core\support</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\time_precise.h">
+      <Filter>src\core\lib\support</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\support\tmpfile.h">
-      <Filter>src\core\support</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\tmpfile.h">
+      <Filter>src\core\lib\support</Filter>
     </ClInclude>
   </ItemGroup>
 
@@ -323,11 +323,14 @@
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       <UniqueIdentifier>{c5e1baa7-de77-beb1-9675-942261648f79}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\profiling">
-      <UniqueIdentifier>{93b7086c-8c8a-6bbf-fb14-1f166bf0146a}</UniqueIdentifier>
+    <Filter Include="src\core\lib">
+      <UniqueIdentifier>{52037bcb-5719-a548-224d-834fbe569045}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\support">
-      <UniqueIdentifier>{bb116f2a-ea2a-c233-82da-0c54e3cbfec1}</UniqueIdentifier>
+    <Filter Include="src\core\lib\profiling">
+      <UniqueIdentifier>{ba38d79d-d5de-a89e-9ca2-c5235a03ca7f}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="src\core\lib\support">
+      <UniqueIdentifier>{a4812158-7fba-959e-4e09-50167fe38df8}</UniqueIdentifier>
     </Filter>
   </ItemGroup>
 </Project>
diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj b/vsprojects/vcxproj/grpc/grpc.vcxproj
index bfb8b44..febfd3b 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj
@@ -282,461 +282,465 @@
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-    <ClInclude Include="$(SolutionDir)\..\src\core\client_config\lb_policies\round_robin.h" />
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diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
index 711c5d4..00fbf71 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
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+      <Filter>src\core\lib\transport\chttp2</Filter>
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-      <Filter>src\core\transport\chttp2</Filter>
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-      <Filter>src\core\transport\chttp2</Filter>
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-      <Filter>src\core\transport\chttp2</Filter>
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-      <Filter>src\core\transport\chttp2</Filter>
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-      <Filter>src\core\transport\chttp2</Filter>
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-      <Filter>src\core\transport</Filter>
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+      <Filter>src\core\lib\transport</Filter>
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+      <Filter>src\core\lib\transport</Filter>
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-      <Filter>src\core\transport</Filter>
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+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\transport\transport.h">
+      <Filter>src\core\lib\transport</Filter>
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-      <Filter>src\core\transport</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\transport\transport_impl.h">
+      <Filter>src\core\lib\transport</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\security\auth_filters.h">
-      <Filter>src\core\security</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\security\auth_filters.h">
+      <Filter>src\core\lib\security</Filter>
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-      <Filter>src\core\security</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\security\b64.h">
+      <Filter>src\core\lib\security</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\security\credentials.h">
-      <Filter>src\core\security</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\security\credentials.h">
+      <Filter>src\core\lib\security</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\security\handshake.h">
-      <Filter>src\core\security</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\security\handshake.h">
+      <Filter>src\core\lib\security</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\security\json_token.h">
-      <Filter>src\core\security</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\security\json_token.h">
+      <Filter>src\core\lib\security</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\security\jwt_verifier.h">
-      <Filter>src\core\security</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\security\jwt_verifier.h">
+      <Filter>src\core\lib\security</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\security\secure_endpoint.h">
-      <Filter>src\core\security</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\security\secure_endpoint.h">
+      <Filter>src\core\lib\security</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\security\security_connector.h">
-      <Filter>src\core\security</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\security\security_connector.h">
+      <Filter>src\core\lib\security</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\security\security_context.h">
-      <Filter>src\core\security</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\security\security_context.h">
+      <Filter>src\core\lib\security</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\tsi\fake_transport_security.h">
-      <Filter>src\core\tsi</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\tsi\fake_transport_security.h">
+      <Filter>src\core\lib\tsi</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\tsi\ssl_transport_security.h">
-      <Filter>src\core\tsi</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\tsi\ssl_transport_security.h">
+      <Filter>src\core\lib\tsi</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\tsi\ssl_types.h">
-      <Filter>src\core\tsi</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\tsi\ssl_types.h">
+      <Filter>src\core\lib\tsi</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\tsi\transport_security.h">
-      <Filter>src\core\tsi</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\tsi\transport_security.h">
+      <Filter>src\core\lib\tsi</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\tsi\transport_security_interface.h">
-      <Filter>src\core\tsi</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\tsi\transport_security_interface.h">
+      <Filter>src\core\lib\tsi</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\census\aggregation.h">
-      <Filter>src\core\census</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\census\aggregation.h">
+      <Filter>src\core\lib\census</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\census\mlog.h">
-      <Filter>src\core\census</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\census\mlog.h">
+      <Filter>src\core\lib\census</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\census\rpc_metric_id.h">
-      <Filter>src\core\census</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\census\rpc_metric_id.h">
+      <Filter>src\core\lib\census</Filter>
     </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\third_party\nanopb\pb.h">
       <Filter>third_party\nanopb</Filter>
@@ -965,65 +974,68 @@
     <Filter Include="src\core">
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     </Filter>
-    <Filter Include="src\core\census">
-      <UniqueIdentifier>{fb3aefc2-8205-b0bf-525f-ab5e339f7f76}</UniqueIdentifier>
+    <Filter Include="src\core\lib">
+      <UniqueIdentifier>{5b2ded3f-84a5-f6b4-2060-286c7d1dc945}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\channel">
-      <UniqueIdentifier>{d897b6c3-c555-234e-a589-b4f008063615}</UniqueIdentifier>
+    <Filter Include="src\core\lib\census">
+      <UniqueIdentifier>{f4108884-98c3-ac2e-c669-83cd41343975}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\client_config">
-      <UniqueIdentifier>{e71e6928-b1e3-0616-0961-1505370458ab}</UniqueIdentifier>
+    <Filter Include="src\core\lib\channel">
+      <UniqueIdentifier>{1931b044-90f3-cd68-b5f8-23be77ca8efc}</UniqueIdentifier>
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-    <Filter Include="src\core\client_config\lb_policies">
-      <UniqueIdentifier>{a3eca4d5-f760-61a6-7251-556b828c8b44}</UniqueIdentifier>
+    <Filter Include="src\core\lib\client_config">
+      <UniqueIdentifier>{2f3260de-be57-d18d-6882-61d115baa159}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\client_config\resolvers">
-      <UniqueIdentifier>{6d97b8d9-2c15-927a-892a-709d073c02ab}</UniqueIdentifier>
+    <Filter Include="src\core\lib\client_config\lb_policies">
+      <UniqueIdentifier>{118d2bb5-086f-54f3-11de-26d7d7f73f9d}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\compression">
-      <UniqueIdentifier>{263cb913-dfe6-42a4-096b-cac231f76305}</UniqueIdentifier>
+    <Filter Include="src\core\lib\client_config\resolvers">
+      <UniqueIdentifier>{b9d8db6c-2c68-1c90-fe5e-37da90f47ae6}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\debug">
-      <UniqueIdentifier>{1da7ef8a-a06d-5499-b3de-19fee4a4214d}</UniqueIdentifier>
+    <Filter Include="src\core\lib\compression">
+      <UniqueIdentifier>{dadf7fe9-3f15-d431-e4f6-f987b090536c}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\httpcli">
-      <UniqueIdentifier>{a9bc00ad-835f-c625-c6d9-6a1324f98b9f}</UniqueIdentifier>
+    <Filter Include="src\core\lib\debug">
+      <UniqueIdentifier>{19122742-9b92-5b67-9fb9-e552ac62ca5d}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\iomgr">
-      <UniqueIdentifier>{1baf3894-af37-e647-bdbc-95dc17ed0073}</UniqueIdentifier>
+    <Filter Include="src\core\lib\http">
+      <UniqueIdentifier>{dab8f03a-73de-8cfa-88fb-6e04402efb54}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\json">
-      <UniqueIdentifier>{e665cc0e-b994-d7c5-cc18-2007392019f0}</UniqueIdentifier>
+    <Filter Include="src\core\lib\iomgr">
+      <UniqueIdentifier>{5468ba38-b8a3-85b1-216f-48a2364e18df}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\proto">
-      <UniqueIdentifier>{1ff04466-0905-8a5d-d6f4-7ff2df4c13b5}</UniqueIdentifier>
+    <Filter Include="src\core\lib\json">
+      <UniqueIdentifier>{cb2b0073-f2a7-5c63-d182-8874b24bdf36}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\proto\grpc">
-      <UniqueIdentifier>{7c7ad0b3-bf85-5bd3-e0c8-4f5468a8e2e6}</UniqueIdentifier>
+    <Filter Include="src\core\lib\proto">
+      <UniqueIdentifier>{b4b19f9a-1575-8a21-0bca-537746f858b7}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\proto\grpc\lb">
-      <UniqueIdentifier>{3d533dad-8100-e8a3-b7c3-1fc13a4d60da}</UniqueIdentifier>
+    <Filter Include="src\core\lib\proto\grpc">
+      <UniqueIdentifier>{cbc8ce67-4a97-d533-8dc3-f949c63e2771}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\proto\grpc\lb\v0">
-      <UniqueIdentifier>{0ffcf868-7617-5fed-b6ce-2162d9d09148}</UniqueIdentifier>
+    <Filter Include="src\core\lib\proto\grpc\lb">
+      <UniqueIdentifier>{933530ae-447b-ea8d-3531-98f0556960b0}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\security">
-      <UniqueIdentifier>{1d850ac6-e639-4eab-5338-4ba40272fcc9}</UniqueIdentifier>
+    <Filter Include="src\core\lib\proto\grpc\lb\v0">
+      <UniqueIdentifier>{c33f944f-37d4-42fd-abc3-61f0d4400462}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\statistics">
-      <UniqueIdentifier>{0ef49896-2313-4a3f-1ce2-716fa0e5c6ca}</UniqueIdentifier>
+    <Filter Include="src\core\lib\security">
+      <UniqueIdentifier>{c4661d64-349f-01c1-1ba8-0602f9047595}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\surface">
-      <UniqueIdentifier>{aeb18e82-5d25-0aad-8b02-a0a3470073ce}</UniqueIdentifier>
+    <Filter Include="src\core\lib\statistics">
+      <UniqueIdentifier>{4dc3c48b-e931-ed47-ffa2-b4ea3a7956ec}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\transport">
-      <UniqueIdentifier>{168fa1b1-1c18-eb55-9a4d-746bc58df2c1}</UniqueIdentifier>
+    <Filter Include="src\core\lib\surface">
+      <UniqueIdentifier>{a21971fb-304f-da08-b1b2-7bd8df8ac373}</UniqueIdentifier>
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-    <Filter Include="src\core\transport\chttp2">
-      <UniqueIdentifier>{b8b623c3-a168-a2b1-0d5f-b70a1f1cd8d2}</UniqueIdentifier>
+    <Filter Include="src\core\lib\transport">
+      <UniqueIdentifier>{e9d0d3fc-c100-f3e6-89b8-649f241155bf}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\tsi">
-      <UniqueIdentifier>{0b0f9ab1-efa4-7f03-e446-6fb9b5227e84}</UniqueIdentifier>
+    <Filter Include="src\core\lib\transport\chttp2">
+      <UniqueIdentifier>{a47fedfc-b6c6-d588-14fc-6645d736bcd6}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="src\core\lib\tsi">
+      <UniqueIdentifier>{95ad2811-c8d0-7a42-2a73-baf03fcbf699}</UniqueIdentifier>
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     <Filter Include="third_party">
       <UniqueIdentifier>{aaab30a4-2a15-732e-c141-3fbc0f0f5a7a}</UniqueIdentifier>
diff --git a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
index 3f92df7..3057f67 100644
--- a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
+++ b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
@@ -272,407 +272,411 @@
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diff --git a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
index 8899518..8a4acb3 100644
--- a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
@@ -1,416 +1,419 @@
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     </ClInclude>
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     </ClInclude>
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     </ClInclude>
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     </ClInclude>
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-      <Filter>src\core\iomgr</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\iomgr\wakeup_fd_posix.h">
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     </ClInclude>
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     </ClInclude>
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     </ClInclude>
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-      <Filter>src\core\statistics</Filter>
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+      <Filter>src\core\lib\statistics</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\statistics\census_rpc_stats.h">
-      <Filter>src\core\statistics</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\statistics\census_rpc_stats.h">
+      <Filter>src\core\lib\statistics</Filter>
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-      <Filter>src\core\surface</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\surface\api_trace.h">
+      <Filter>src\core\lib\surface</Filter>
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-      <Filter>src\core\surface</Filter>
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     </ClInclude>
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-      <Filter>src\core\surface</Filter>
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-      <Filter>src\core\surface</Filter>
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-      <Filter>src\core\surface</Filter>
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     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\surface\channel_stack_type.h">
-      <Filter>src\core\surface</Filter>
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-      <Filter>src\core\surface</Filter>
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-      <Filter>src\core\surface</Filter>
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-      <Filter>src\core\surface</Filter>
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-      <Filter>src\core\surface</Filter>
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+      <Filter>src\core\lib\surface</Filter>
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-      <Filter>src\core\surface</Filter>
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-      <Filter>src\core\surface</Filter>
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-      <Filter>src\core\transport</Filter>
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-      <Filter>src\core\transport\chttp2</Filter>
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     </ClInclude>
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-      <Filter>src\core\transport\chttp2</Filter>
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-      <Filter>src\core\transport\chttp2</Filter>
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     </ClInclude>
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-      <Filter>src\core\transport\chttp2</Filter>
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-      <Filter>src\core\transport\chttp2</Filter>
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-      <Filter>src\core\transport\chttp2</Filter>
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-      <Filter>src\core\transport\chttp2</Filter>
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-      <Filter>src\core\transport\chttp2</Filter>
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-      <Filter>src\core\transport\chttp2</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\transport\chttp2\frame_window_update.h">
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     </ClInclude>
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-      <Filter>src\core\transport\chttp2</Filter>
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     </ClInclude>
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-      <Filter>src\core\transport\chttp2</Filter>
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+      <Filter>src\core\lib\transport\chttp2</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\transport\chttp2\hpack_table.h">
-      <Filter>src\core\transport\chttp2</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\transport\chttp2\hpack_table.h">
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     </ClInclude>
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-      <Filter>src\core\transport\chttp2</Filter>
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     </ClInclude>
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-      <Filter>src\core\transport\chttp2</Filter>
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+      <Filter>src\core\lib\transport\chttp2</Filter>
     </ClInclude>
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-      <Filter>src\core\transport\chttp2</Filter>
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     </ClInclude>
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-      <Filter>src\core\transport\chttp2</Filter>
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     </ClInclude>
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-      <Filter>src\core\transport\chttp2</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\transport\chttp2\status_conversion.h">
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-      <Filter>src\core\transport\chttp2</Filter>
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-      <Filter>src\core\transport\chttp2</Filter>
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     </ClInclude>
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-      <Filter>src\core\transport\chttp2</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\transport\chttp2\varint.h">
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     </ClInclude>
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-      <Filter>src\core\transport</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\transport\chttp2_transport.h">
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     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\transport\connectivity_state.h">
-      <Filter>src\core\transport</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\transport\connectivity_state.h">
+      <Filter>src\core\lib\transport</Filter>
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-    <ClInclude Include="$(SolutionDir)\..\src\core\transport\metadata.h">
-      <Filter>src\core\transport</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\transport\metadata.h">
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-      <Filter>src\core\transport</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\transport\metadata_batch.h">
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-      <Filter>src\core\transport</Filter>
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-      <Filter>src\core\transport</Filter>
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-      <Filter>src\core\transport</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\lib\transport\transport_impl.h">
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-    <ClInclude Include="$(SolutionDir)\..\src\core\census\aggregation.h">
-      <Filter>src\core\census</Filter>
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-    <ClInclude Include="$(SolutionDir)\..\src\core\census\mlog.h">
-      <Filter>src\core\census</Filter>
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-    <ClInclude Include="$(SolutionDir)\..\src\core\census\rpc_metric_id.h">
-      <Filter>src\core\census</Filter>
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@@ -860,59 +869,62 @@
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+      <UniqueIdentifier>{bb9b8c80-9eff-5ab6-5b29-c2d54f0fc192}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\surface">
-      <UniqueIdentifier>{6cd0127e-c24b-d43c-38f5-198db8d4322a}</UniqueIdentifier>
+    <Filter Include="src\core\lib\statistics">
+      <UniqueIdentifier>{d0ab6d54-ae25-fc49-3656-91d9db57366a}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\transport">
-      <UniqueIdentifier>{6687ff98-e36e-c0b1-2756-1bc79edec406}</UniqueIdentifier>
+    <Filter Include="src\core\lib\surface">
+      <UniqueIdentifier>{506dc3b3-d884-2b59-0dfa-57ed6affa2d3}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\transport\chttp2">
-      <UniqueIdentifier>{5fcd6206-f774-9ae6-4b85-305d6a723843}</UniqueIdentifier>
+    <Filter Include="src\core\lib\transport">
+      <UniqueIdentifier>{6c3394d1-27e9-003e-19ed-8116d210f7cc}</UniqueIdentifier>
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+    <Filter Include="src\core\lib\transport\chttp2">
+      <UniqueIdentifier>{212a6997-9b9c-3b47-d953-aaff34d608b1}</UniqueIdentifier>
     </Filter>
     <Filter Include="third_party">
       <UniqueIdentifier>{025c051e-8eba-125b-67f9-173f95176eb2}</UniqueIdentifier>
diff --git a/vsprojects/vcxproj/test/httpcli_parser_test/httpcli_parser_test.vcxproj b/vsprojects/vcxproj/test/boringssl/boringssl_asn1_test/boringssl_asn1_test.vcxproj
similarity index 91%
copy from vsprojects/vcxproj/test/httpcli_parser_test/httpcli_parser_test.vcxproj
copy to vsprojects/vcxproj/test/boringssl/boringssl_asn1_test/boringssl_asn1_test.vcxproj
index 6f97630..9d5aa67 100644
--- a/vsprojects/vcxproj/test/httpcli_parser_test/httpcli_parser_test.vcxproj
+++ b/vsprojects/vcxproj/test/boringssl/boringssl_asn1_test/boringssl_asn1_test.vcxproj
@@ -20,7 +20,7 @@
     </ProjectConfiguration>
   </ItemGroup>
   <PropertyGroup Label="Globals">
-    <ProjectGuid>{B6F60D1C-D4F3-0F1A-4A2F-9134629B7848}</ProjectGuid>
+    <ProjectGuid>{A18A6879-13EB-F421-E270-03C6DBD6A6B7}</ProjectGuid>
     <IgnoreWarnIntDirInTempDetected>true</IgnoreWarnIntDirInTempDetected>
     <IntDir>$(SolutionDir)IntDir\$(MSBuildProjectName)\</IntDir>
   </PropertyGroup>
@@ -53,21 +53,23 @@
   </ImportGroup>
   <ImportGroup Label="PropertySheets">
     <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="$(SolutionDir)\..\vsprojects\cpptest.props" />
     <Import Project="$(SolutionDir)\..\vsprojects\global.props" />
     <Import Project="$(SolutionDir)\..\vsprojects\openssl.props" />
+    <Import Project="$(SolutionDir)\..\vsprojects\protobuf.props" />
     <Import Project="$(SolutionDir)\..\vsprojects\winsock.props" />
     <Import Project="$(SolutionDir)\..\vsprojects\zlib.props" />
   </ImportGroup>
   <PropertyGroup Label="UserMacros" />
   <PropertyGroup Condition="'$(Configuration)'=='Debug'">
-    <TargetName>httpcli_parser_test</TargetName>
+    <TargetName>boringssl_asn1_test</TargetName>
     <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
     <Configuration-grpc_dependencies_zlib>Debug</Configuration-grpc_dependencies_zlib>
     <Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl>
     <Configuration-grpc_dependencies_openssl>Debug</Configuration-grpc_dependencies_openssl>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)'=='Release'">
-    <TargetName>httpcli_parser_test</TargetName>
+    <TargetName>boringssl_asn1_test</TargetName>
     <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
     <Configuration-grpc_dependencies_zlib>Release</Configuration-grpc_dependencies_zlib>
     <Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl>
@@ -81,7 +83,7 @@
       <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
-      <TreatWarningAsError>true</TreatWarningAsError>
+      <TreatWarningAsError>false</TreatWarningAsError>
       <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
       <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
     </ClCompile>
@@ -100,7 +102,7 @@
       <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
-      <TreatWarningAsError>true</TreatWarningAsError>
+      <TreatWarningAsError>false</TreatWarningAsError>
       <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
       <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
     </ClCompile>
@@ -121,7 +123,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <SDLCheck>true</SDLCheck>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
-      <TreatWarningAsError>true</TreatWarningAsError>
+      <TreatWarningAsError>false</TreatWarningAsError>
       <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
       <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
     </ClCompile>
@@ -144,7 +146,7 @@
       <IntrinsicFunctions>true</IntrinsicFunctions>
       <SDLCheck>true</SDLCheck>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
-      <TreatWarningAsError>true</TreatWarningAsError>
+      <TreatWarningAsError>false</TreatWarningAsError>
       <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
       <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
     </ClCompile>
@@ -158,21 +160,18 @@
   </ItemDefinitionGroup>
 
   <ItemGroup>
-    <ClCompile Include="$(SolutionDir)\..\test\core\httpcli\parser_test.c">
+    <ClCompile Include="$(SolutionDir)\..\vsprojects\dummy.c">
     </ClCompile>
   </ItemGroup>
   <ItemGroup>
-    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\grpc_test_util\grpc_test_util.vcxproj">
-      <Project>{17BCAFC0-5FDC-4C94-AEB9-95F3E220614B}</Project>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\test/boringssl\boringssl_asn1_test_lib\boringssl_asn1_test_lib.vcxproj">
+      <Project>{37B78CF5-2090-3DC6-FF98-17381709846A}</Project>
     </ProjectReference>
-    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\grpc\grpc.vcxproj">
-      <Project>{29D16885-7228-4C31-81ED-5F9187C7F2A9}</Project>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\boringssl_test_util\boringssl_test_util.vcxproj">
+      <Project>{427037B1-B51B-D6F1-5025-AD12B200266A}</Project>
     </ProjectReference>
-    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\gpr_test_util\gpr_test_util.vcxproj">
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-      <Project>{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}</Project>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\boringssl\boringssl.vcxproj">
+      <Project>{9FD9A3EF-C4A3-8390-D8F4-6F86C22A58CE}</Project>
     </ProjectReference>
   </ItemGroup>
   <ItemGroup>
diff --git a/vsprojects/vcxproj/test/boringssl/boringssl_asn1_test/boringssl_asn1_test.vcxproj.filters b/vsprojects/vcxproj/test/boringssl/boringssl_asn1_test/boringssl_asn1_test.vcxproj.filters
new file mode 100644
index 0000000..00e4276
--- /dev/null
+++ b/vsprojects/vcxproj/test/boringssl/boringssl_asn1_test/boringssl_asn1_test.vcxproj.filters
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+
+  <ItemGroup>
+  </ItemGroup>
+</Project>
+
diff --git a/vsprojects/vcxproj/test/boringssl/boringssl_asn1_test_lib/boringssl_asn1_test_lib.vcxproj b/vsprojects/vcxproj/test/boringssl/boringssl_asn1_test_lib/boringssl_asn1_test_lib.vcxproj
new file mode 100644
index 0000000..177bfcb
--- /dev/null
+++ b/vsprojects/vcxproj/test/boringssl/boringssl_asn1_test_lib/boringssl_asn1_test_lib.vcxproj
@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup Label="ProjectConfigurations">
+    <ProjectConfiguration Include="Debug|Win32">
+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Debug|x64">
+      <Configuration>Debug</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|Win32">
+      <Configuration>Release</Configuration>
+      <Platform>Win32</Platform>
+    </ProjectConfiguration>
+    <ProjectConfiguration Include="Release|x64">
+      <Configuration>Release</Configuration>
+      <Platform>x64</Platform>
+    </ProjectConfiguration>
+  </ItemGroup>
+  <PropertyGroup Label="Globals">
+    <ProjectGuid>{37B78CF5-2090-3DC6-FF98-17381709846A}</ProjectGuid>
+    <IgnoreWarnIntDirInTempDetected>true</IgnoreWarnIntDirInTempDetected>
+    <IntDir>$(SolutionDir)IntDir\$(MSBuildProjectName)\</IntDir>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '10.0'" Label="Configuration">
+    <PlatformToolset>v100</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '11.0'" Label="Configuration">
+    <PlatformToolset>v110</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '12.0'" Label="Configuration">
+    <PlatformToolset>v120</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(VisualStudioVersion)' == '14.0'" Label="Configuration">
+    <PlatformToolset>v140</PlatformToolset>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)'=='Debug'" Label="Configuration">
+    <ConfigurationType>StaticLibrary</ConfigurationType>
+    <UseDebugLibraries>true</UseDebugLibraries>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)'=='Release'" Label="Configuration">
+    <ConfigurationType>StaticLibrary</ConfigurationType>
+    <UseDebugLibraries>false</UseDebugLibraries>
+    <WholeProgramOptimization>true</WholeProgramOptimization>
+    <CharacterSet>Unicode</CharacterSet>
+  </PropertyGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
+  <ImportGroup Label="ExtensionSettings">
+  </ImportGroup>
+  <ImportGroup Label="PropertySheets">
+    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
+    <Import Project="$(SolutionDir)\..\vsprojects\global.props" />
+    <Import Project="$(SolutionDir)\..\vsprojects\winsock.props" />
+  </ImportGroup>
+  <PropertyGroup Label="UserMacros" />
+  <PropertyGroup Condition="'$(Configuration)'=='Debug'">
+    <TargetName>boringssl_asn1_test_lib</TargetName>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)'=='Release'">
+    <TargetName>boringssl_asn1_test_lib</TargetName>
+  </PropertyGroup>
+    <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+      <TreatWarningAsError>false</TreatWarningAsError>
+      <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+      <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+      <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+
+    <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>Disabled</Optimization>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
+      <TreatWarningAsError>false</TreatWarningAsError>
+      <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+      <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+      <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
+    </Link>
+  </ItemDefinitionGroup>
+
+    <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>MaxSpeed</Optimization>
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+      <FunctionLevelLinking>true</FunctionLevelLinking>
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+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+      <TreatWarningAsError>false</TreatWarningAsError>
+      <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+      <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+      <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+
+    <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <PrecompiledHeader>NotUsing</PrecompiledHeader>
+      <WarningLevel>Level3</WarningLevel>
+      <Optimization>MaxSpeed</Optimization>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <FunctionLevelLinking>true</FunctionLevelLinking>
+      <IntrinsicFunctions>true</IntrinsicFunctions>
+      <SDLCheck>true</SDLCheck>
+      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
+      <TreatWarningAsError>false</TreatWarningAsError>
+      <DebugInformationFormat Condition="$(Jenkins)">None</DebugInformationFormat>
+      <MinimalRebuild Condition="$(Jenkins)">false</MinimalRebuild>
+    </ClCompile>
+    <Link>
+      <SubSystem>Windows</SubSystem>
+      <GenerateDebugInformation Condition="!$(Jenkins)">true</GenerateDebugInformation>
+      <GenerateDebugInformation Condition="$(Jenkins)">false</GenerateDebugInformation>
+      <EnableCOMDATFolding>true</EnableCOMDATFolding>
+      <OptimizeReferences>true</OptimizeReferences>
+    </Link>
+  </ItemDefinitionGroup>
+
+  <ItemGroup>
+    <ClCompile Include="$(SolutionDir)\..\third_party\boringssl\crypto\asn1\asn1_test.cc">
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\boringssl_test_util\boringssl_test_util.vcxproj">
+      <Project>{427037B1-B51B-D6F1-5025-AD12B200266A}</Project>
+    </ProjectReference>
+    <ProjectReference Include="$(SolutionDir)\..\vsprojects\vcxproj\.\boringssl\boringssl.vcxproj">
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+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
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+  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
+    <PropertyGroup>
+      <ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
+    </PropertyGroup>
+  </Target>
+</Project>
+
diff --git a/vsprojects/vcxproj/test/boringssl/boringssl_asn1_test_lib/boringssl_asn1_test_lib.vcxproj.filters b/vsprojects/vcxproj/test/boringssl/boringssl_asn1_test_lib/boringssl_asn1_test_lib.vcxproj.filters
new file mode 100644
index 0000000..d508701
--- /dev/null
+++ b/vsprojects/vcxproj/test/boringssl/boringssl_asn1_test_lib/boringssl_asn1_test_lib.vcxproj.filters
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
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+    <ClCompile Include="$(SolutionDir)\..\third_party\boringssl\crypto\asn1\asn1_test.cc">
+      <Filter>third_party\boringssl\crypto\asn1</Filter>
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+  <ItemGroup>
+    <Filter Include="third_party">
+      <UniqueIdentifier>{4115523a-a0e5-e13f-f46b-76308dedf6f3}</UniqueIdentifier>
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+    <Filter Include="third_party\boringssl\crypto">
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+    <Filter Include="third_party\boringssl\crypto\asn1">
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diff --git a/vsprojects/vcxproj/test/end2end/fixtures/h2_uchannel_nosec_test/h2_uchannel_nosec_test.vcxproj b/vsprojects/vcxproj/test/end2end/fixtures/h2_uchannel_nosec_test/h2_uchannel_nosec_test.vcxproj
deleted file mode 100644
index 76a9e56..0000000
--- a/vsprojects/vcxproj/test/end2end/fixtures/h2_uchannel_nosec_test/h2_uchannel_nosec_test.vcxproj
+++ /dev/null
@@ -1,202 +0,0 @@
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-    <TargetName>h2_uchannel_nosec_test</TargetName>
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-    <Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl>
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similarity index 97%
rename from vsprojects/vcxproj/test/httpcli_parser_test/httpcli_parser_test.vcxproj
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index 6f97630..bd5cf12 100644
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   <PropertyGroup Label="UserMacros" />
   <PropertyGroup Condition="'$(Configuration)'=='Debug'">
-    <TargetName>httpcli_parser_test</TargetName>
+    <TargetName>http_parser_test</TargetName>
     <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
     <Configuration-grpc_dependencies_zlib>Debug</Configuration-grpc_dependencies_zlib>
     <Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl>
     <Configuration-grpc_dependencies_openssl>Debug</Configuration-grpc_dependencies_openssl>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)'=='Release'">
-    <TargetName>httpcli_parser_test</TargetName>
+    <TargetName>http_parser_test</TargetName>
     <Linkage-grpc_dependencies_zlib>static</Linkage-grpc_dependencies_zlib>
     <Configuration-grpc_dependencies_zlib>Release</Configuration-grpc_dependencies_zlib>
     <Linkage-grpc_dependencies_openssl>static</Linkage-grpc_dependencies_openssl>
@@ -158,7 +158,7 @@
   </ItemDefinitionGroup>
 
   <ItemGroup>
-    <ClCompile Include="$(SolutionDir)\..\test\core\httpcli\parser_test.c">
+    <ClCompile Include="$(SolutionDir)\..\test\core\http\parser_test.c">
     </ClCompile>
   </ItemGroup>
   <ItemGroup>
diff --git a/vsprojects/vcxproj/test/http_parser_test/http_parser_test.vcxproj.filters b/vsprojects/vcxproj/test/http_parser_test/http_parser_test.vcxproj.filters
new file mode 100644
index 0000000..4353c3b
--- /dev/null
+++ b/vsprojects/vcxproj/test/http_parser_test/http_parser_test.vcxproj.filters
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <ClCompile Include="$(SolutionDir)\..\test\core\http\parser_test.c">
+      <Filter>test\core\http</Filter>
+    </ClCompile>
+  </ItemGroup>
+
+  <ItemGroup>
+    <Filter Include="test">
+      <UniqueIdentifier>{1d07f09d-a0ec-d684-3589-bff02afbe830}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="test\core">
+      <UniqueIdentifier>{eedab59d-9f19-9172-cf0e-83a839217afc}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="test\core\http">
+      <UniqueIdentifier>{1fcac48f-3718-00ea-6c0c-aafa1a4de528}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+</Project>
+
diff --git a/vsprojects/vcxproj/test/httpcli_format_request_test/httpcli_format_request_test.vcxproj b/vsprojects/vcxproj/test/httpcli_format_request_test/httpcli_format_request_test.vcxproj
index 97f14f6..5515349 100644
--- a/vsprojects/vcxproj/test/httpcli_format_request_test/httpcli_format_request_test.vcxproj
+++ b/vsprojects/vcxproj/test/httpcli_format_request_test/httpcli_format_request_test.vcxproj
@@ -158,7 +158,7 @@
   </ItemDefinitionGroup>
 
   <ItemGroup>
-    <ClCompile Include="$(SolutionDir)\..\test\core\httpcli\format_request_test.c">
+    <ClCompile Include="$(SolutionDir)\..\test\core\http\format_request_test.c">
     </ClCompile>
   </ItemGroup>
   <ItemGroup>
diff --git a/vsprojects/vcxproj/test/httpcli_format_request_test/httpcli_format_request_test.vcxproj.filters b/vsprojects/vcxproj/test/httpcli_format_request_test/httpcli_format_request_test.vcxproj.filters
index c54ded5..6f941f4 100644
--- a/vsprojects/vcxproj/test/httpcli_format_request_test/httpcli_format_request_test.vcxproj.filters
+++ b/vsprojects/vcxproj/test/httpcli_format_request_test/httpcli_format_request_test.vcxproj.filters
@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup>
-    <ClCompile Include="$(SolutionDir)\..\test\core\httpcli\format_request_test.c">
-      <Filter>test\core\httpcli</Filter>
+    <ClCompile Include="$(SolutionDir)\..\test\core\http\format_request_test.c">
+      <Filter>test\core\http</Filter>
     </ClCompile>
   </ItemGroup>
 
@@ -13,8 +13,8 @@
     <Filter Include="test\core">
       <UniqueIdentifier>{f033cf49-b830-5698-3989-6ec75817333b}</UniqueIdentifier>
     </Filter>
-    <Filter Include="test\core\httpcli">
-      <UniqueIdentifier>{75330e6a-521e-5f90-defd-652a4591dbe9}</UniqueIdentifier>
+    <Filter Include="test\core\http">
+      <UniqueIdentifier>{51615bc9-b61d-8d7d-9abb-5409276c04ec}</UniqueIdentifier>
     </Filter>
   </ItemGroup>
 </Project>
diff --git a/vsprojects/vcxproj/test/httpcli_parser_test/httpcli_parser_test.vcxproj.filters b/vsprojects/vcxproj/test/httpcli_parser_test/httpcli_parser_test.vcxproj.filters
deleted file mode 100644
index 1cdc32f..0000000
--- a/vsprojects/vcxproj/test/httpcli_parser_test/httpcli_parser_test.vcxproj.filters
+++ /dev/null
@@ -1,21 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <ItemGroup>
-    <ClCompile Include="$(SolutionDir)\..\test\core\httpcli\parser_test.c">
-      <Filter>test\core\httpcli</Filter>
-    </ClCompile>
-  </ItemGroup>
-
-  <ItemGroup>
-    <Filter Include="test">
-      <UniqueIdentifier>{f3562e8b-3020-c79a-4e3b-c895f9e49f44}</UniqueIdentifier>
-    </Filter>
-    <Filter Include="test\core">
-      <UniqueIdentifier>{db527686-b5c7-68df-a106-bd919f60742a}</UniqueIdentifier>
-    </Filter>
-    <Filter Include="test\core\httpcli">
-      <UniqueIdentifier>{8e60d460-93de-c6e1-b67b-bfae71bd9bca}</UniqueIdentifier>
-    </Filter>
-  </ItemGroup>
-</Project>
-