31 files changed, 61 insertions, 99 deletions
diff --git a/src/core/lib/census/README.md b/src/core/ext/census/README.md
index fb615a2194..fb615a2194 100644
--- a/src/core/lib/census/README.md
+++ b/src/core/ext/census/README.md
diff --git a/src/core/lib/census/aggregation.h b/src/core/ext/census/aggregation.h
index 088ad808ef..45f789c772 100644
--- a/src/core/lib/census/aggregation.h
+++ b/src/core/ext/census/aggregation.h
@@ -33,8 +33,8 @@
 
 #include <stddef.h>
 
-#ifndef GRPC_CORE_LIB_CENSUS_AGGREGATION_H
-#define GRPC_CORE_LIB_CENSUS_AGGREGATION_H
+#ifndef GRPC_CORE_EXT_CENSUS_AGGREGATION_H
+#define GRPC_CORE_EXT_CENSUS_AGGREGATION_H
 
 /** Structure used to describe an aggregation type. */
 struct census_aggregation_ops {
@@ -63,4 +63,4 @@ struct census_aggregation_ops {
   size_t (*print)(const void *aggregation, char *buffer, size_t n);
 };
 
-#endif /* GRPC_CORE_LIB_CENSUS_AGGREGATION_H */
+#endif /* GRPC_CORE_EXT_CENSUS_AGGREGATION_H */
diff --git a/src/core/lib/statistics/census_init.c b/src/core/ext/census/census_init.c
index 7a8b8b660a..690b09e789 100644
--- a/src/core/lib/statistics/census_init.c
+++ b/src/core/ext/census/census_init.c
@@ -31,11 +31,11 @@
  *
  */
 
-#include "src/core/lib/statistics/census_interface.h"
+#include "src/core/ext/census/census_interface.h"
 
 #include <grpc/support/log.h>
-#include "src/core/lib/statistics/census_rpc_stats.h"
-#include "src/core/lib/statistics/census_tracing.h"
+#include "src/core/ext/census/census_rpc_stats.h"
+#include "src/core/ext/census/census_tracing.h"
 
 void census_init(void) {
   census_tracing_init();
diff --git a/src/core/lib/statistics/census_interface.h b/src/core/ext/census/census_interface.h
index 4dce81b0c7..57e75f56ee 100644
--- a/src/core/lib/statistics/census_interface.h
+++ b/src/core/ext/census/census_interface.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_LIB_STATISTICS_CENSUS_INTERFACE_H
-#define GRPC_CORE_LIB_STATISTICS_CENSUS_INTERFACE_H
+#ifndef GRPC_CORE_EXT_CENSUS_CENSUS_INTERFACE_H
+#define GRPC_CORE_EXT_CENSUS_CENSUS_INTERFACE_H
 
 #include <grpc/support/port_platform.h>
 
@@ -73,4 +73,4 @@ census_op_id census_tracing_start_op(void);
 /* Ends tracing. Calling this function will invalidate the input op_id. */
 void census_tracing_end_op(census_op_id op_id);
 
-#endif /* GRPC_CORE_LIB_STATISTICS_CENSUS_INTERFACE_H */
+#endif /* GRPC_CORE_EXT_CENSUS_CENSUS_INTERFACE_H */
diff --git a/src/core/lib/statistics/census_log.c b/src/core/ext/census/census_log.c
index 782b34e3a1..9a7331adc2 100644
--- a/src/core/lib/statistics/census_log.c
+++ b/src/core/ext/census/census_log.c
@@ -89,7 +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/lib/statistics/census_log.h"
+#include "src/core/ext/census/census_log.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/atm.h>
 #include <grpc/support/cpu.h>
diff --git a/src/core/lib/statistics/census_log.h b/src/core/ext/census/census_log.h
index 6efcef49a4..534ecc5705 100644
--- a/src/core/lib/statistics/census_log.h
+++ b/src/core/ext/census/census_log.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_LIB_STATISTICS_CENSUS_LOG_H
-#define GRPC_CORE_LIB_STATISTICS_CENSUS_LOG_H
+#ifndef GRPC_CORE_EXT_CENSUS_CENSUS_LOG_H
+#define GRPC_CORE_EXT_CENSUS_CENSUS_LOG_H
 
 #include <stddef.h>
 
@@ -88,4 +88,4 @@ size_t census_log_remaining_space(void);
    out-of-space. */
 int census_log_out_of_space_count(void);
 
-#endif /* GRPC_CORE_LIB_STATISTICS_CENSUS_LOG_H */
+#endif /* GRPC_CORE_EXT_CENSUS_CENSUS_LOG_H */
diff --git a/src/core/lib/statistics/census_rpc_stats.c b/src/core/ext/census/census_rpc_stats.c
index 33522e0f40..09ee12d54b 100644
--- a/src/core/lib/statistics/census_rpc_stats.c
+++ b/src/core/ext/census/census_rpc_stats.c
@@ -36,11 +36,11 @@
 #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/ext/census/census_interface.h"
+#include "src/core/ext/census/census_rpc_stats.h"
+#include "src/core/ext/census/census_tracing.h"
+#include "src/core/ext/census/hash_table.h"
+#include "src/core/ext/census/window_stats.h"
 #include "src/core/lib/support/murmur_hash.h"
 #include "src/core/lib/support/string.h"
 
diff --git a/src/core/lib/statistics/census_rpc_stats.h b/src/core/ext/census/census_rpc_stats.h
index 3853642362..7e4d8d1640 100644
--- a/src/core/lib/statistics/census_rpc_stats.h
+++ b/src/core/ext/census/census_rpc_stats.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_LIB_STATISTICS_CENSUS_RPC_STATS_H
-#define GRPC_CORE_LIB_STATISTICS_CENSUS_RPC_STATS_H
+#ifndef GRPC_CORE_EXT_CENSUS_CENSUS_RPC_STATS_H
+#define GRPC_CORE_EXT_CENSUS_CENSUS_RPC_STATS_H
 
 #include <grpc/support/port_platform.h>
-#include "src/core/lib/statistics/census_interface.h"
+#include "src/core/ext/census/census_interface.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -98,4 +98,4 @@ void census_stats_store_shutdown(void);
 }
 #endif
 
-#endif /* GRPC_CORE_LIB_STATISTICS_CENSUS_RPC_STATS_H */
+#endif /* GRPC_CORE_EXT_CENSUS_CENSUS_RPC_STATS_H */
diff --git a/src/core/lib/statistics/census_tracing.c b/src/core/ext/census/census_tracing.c
index ff71e796ad..f893dc9864 100644
--- a/src/core/lib/statistics/census_tracing.c
+++ b/src/core/ext/census/census_tracing.c
@@ -31,8 +31,8 @@
  *
  */
 
-#include "src/core/lib/statistics/census_tracing.h"
-#include "src/core/lib/statistics/census_interface.h"
+#include "src/core/ext/census/census_tracing.h"
+#include "src/core/ext/census/census_interface.h"
 
 #include <stdio.h>
 #include <string.h>
@@ -41,7 +41,7 @@
 #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/ext/census/hash_table.h"
 #include "src/core/lib/support/string.h"
 
 void census_trace_obj_destroy(census_trace_obj *obj) {
diff --git a/src/core/lib/statistics/census_tracing.h b/src/core/ext/census/census_tracing.h
index 7b2db1e008..42a0d7403e 100644
--- a/src/core/lib/statistics/census_tracing.h
+++ b/src/core/ext/census/census_tracing.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_LIB_STATISTICS_CENSUS_TRACING_H
-#define GRPC_CORE_LIB_STATISTICS_CENSUS_TRACING_H
+#ifndef GRPC_CORE_EXT_CENSUS_CENSUS_TRACING_H
+#define GRPC_CORE_EXT_CENSUS_CENSUS_TRACING_H
 
 #include <grpc/support/time.h>
-#include "src/core/lib/statistics/census_rpc_stats.h"
+#include "src/core/ext/census/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 @@ census_trace_obj **census_get_active_ops(int *num_active_ops);
 }
 #endif
 
-#endif /* GRPC_CORE_LIB_STATISTICS_CENSUS_TRACING_H */
+#endif /* GRPC_CORE_EXT_CENSUS_CENSUS_TRACING_H */
diff --git a/src/core/lib/census/context.c b/src/core/ext/census/context.c
index 0dfc4ecbf1..0dfc4ecbf1 100644
--- a/src/core/lib/census/context.c
+++ b/src/core/ext/census/context.c
diff --git a/src/core/lib/census/grpc_context.c b/src/core/ext/census/grpc_context.c
index 98285ab2d5..98285ab2d5 100644
--- a/src/core/lib/census/grpc_context.c
+++ b/src/core/ext/census/grpc_context.c
diff --git a/src/core/lib/census/grpc_filter.c b/src/core/ext/census/grpc_filter.c
index 9bca2d434d..abfb3bb5f0 100644
--- a/src/core/lib/census/grpc_filter.c
+++ b/src/core/ext/census/grpc_filter.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/lib/census/grpc_filter.h"
+#include "src/core/ext/census/grpc_filter.h"
 
 #include <stdio.h>
 #include <string.h>
@@ -42,9 +42,9 @@
 #include <grpc/support/slice.h>
 #include <grpc/support/time.h>
 
+#include "src/core/ext/census/census_interface.h"
+#include "src/core/ext/census/census_rpc_stats.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 {
diff --git a/src/core/lib/census/grpc_filter.h b/src/core/ext/census/grpc_filter.h
index e747fe6590..a39bd82224 100644
--- a/src/core/lib/census/grpc_filter.h
+++ b/src/core/ext/census/grpc_filter.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_LIB_CENSUS_GRPC_FILTER_H
-#define GRPC_CORE_LIB_CENSUS_GRPC_FILTER_H
+#ifndef GRPC_CORE_EXT_CENSUS_GRPC_FILTER_H
+#define GRPC_CORE_EXT_CENSUS_GRPC_FILTER_H
 
 #include "src/core/lib/channel/channel_stack.h"
 
@@ -41,4 +41,4 @@
 extern const grpc_channel_filter grpc_client_census_filter;
 extern const grpc_channel_filter grpc_server_census_filter;
 
-#endif /* GRPC_CORE_LIB_CENSUS_GRPC_FILTER_H */
+#endif /* GRPC_CORE_EXT_CENSUS_GRPC_FILTER_H */
diff --git a/src/core/lib/census/grpc_plugin.c b/src/core/ext/census/grpc_plugin.c
index 7f6df11f00..0f15ecb2c2 100644
--- a/src/core/lib/census/grpc_plugin.c
+++ b/src/core/ext/census/grpc_plugin.c
@@ -31,13 +31,11 @@
  *
  */
 
-#include "src/core/lib/census/grpc_plugin.h"
-
 #include <limits.h>
 
 #include <grpc/census.h>
 
-#include "src/core/lib/census/grpc_filter.h"
+#include "src/core/ext/census/grpc_filter.h"
 #include "src/core/lib/channel/channel_stack_builder.h"
 #include "src/core/lib/surface/channel_init.h"
 
@@ -67,4 +65,4 @@ void census_grpc_plugin_init(void) {
                                    maybe_add_census_filter, NULL);
 }
 
-void census_grpc_plugin_destroy(void) { census_shutdown(); }
+void census_grpc_plugin_shutdown(void) { census_shutdown(); }
diff --git a/src/core/lib/statistics/hash_table.c b/src/core/ext/census/hash_table.c
index 79481c3eb1..ee6fdfc6e8 100644
--- a/src/core/lib/statistics/hash_table.c
+++ b/src/core/ext/census/hash_table.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/lib/statistics/hash_table.h"
+#include "src/core/ext/census/hash_table.h"
 
 #include <stddef.h>
 #include <stdio.h>
diff --git a/src/core/lib/statistics/hash_table.h b/src/core/ext/census/hash_table.h
index 45984a1c41..30ea4264a2 100644
--- a/src/core/lib/statistics/hash_table.h
+++ b/src/core/ext/census/hash_table.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_LIB_STATISTICS_HASH_TABLE_H
-#define GRPC_CORE_LIB_STATISTICS_HASH_TABLE_H
+#ifndef GRPC_CORE_EXT_CENSUS_HASH_TABLE_H
+#define GRPC_CORE_EXT_CENSUS_HASH_TABLE_H
 
 #include <stddef.h>
 
@@ -128,4 +128,4 @@ typedef void (*census_ht_itr_cb)(census_ht_key key, const void *val_ptr,
    should not invalidate data entries. */
 uint64_t census_ht_for_all(const census_ht *ht, census_ht_itr_cb);
 
-#endif /* GRPC_CORE_LIB_STATISTICS_HASH_TABLE_H */
+#endif /* GRPC_CORE_EXT_CENSUS_HASH_TABLE_H */
diff --git a/src/core/lib/census/initialize.c b/src/core/ext/census/initialize.c
index 896276e44a..896276e44a 100644
--- a/src/core/lib/census/initialize.c
+++ b/src/core/ext/census/initialize.c
diff --git a/src/core/lib/census/mlog.c b/src/core/ext/census/mlog.c
index ce060a2d85..698b7096ab 100644
--- a/src/core/lib/census/mlog.c
+++ b/src/core/ext/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/lib/census/mlog.h"
+#include "src/core/ext/census/mlog.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/atm.h>
 #include <grpc/support/cpu.h>
diff --git a/src/core/lib/census/mlog.h b/src/core/ext/census/mlog.h
index dea43de725..a256426f91 100644
--- a/src/core/lib/census/mlog.h
+++ b/src/core/ext/census/mlog.h
@@ -33,8 +33,8 @@
 
 /* A very fast in-memory log, optimized for multiple writers. */
 
-#ifndef GRPC_CORE_LIB_CENSUS_MLOG_H
-#define GRPC_CORE_LIB_CENSUS_MLOG_H
+#ifndef GRPC_CORE_EXT_CENSUS_MLOG_H
+#define GRPC_CORE_EXT_CENSUS_MLOG_H
 
 #include <grpc/support/port_platform.h>
 #include <stddef.h>
@@ -92,4 +92,4 @@ size_t census_log_remaining_space(void);
    out-of-space. */
 int64_t census_log_out_of_space_count(void);
 
-#endif /* GRPC_CORE_LIB_CENSUS_MLOG_H */
+#endif /* GRPC_CORE_EXT_CENSUS_MLOG_H */
diff --git a/src/core/lib/census/operation.c b/src/core/ext/census/operation.c
index 5c58704372..5c58704372 100644
--- a/src/core/lib/census/operation.c
+++ b/src/core/ext/census/operation.c
diff --git a/src/core/lib/census/placeholders.c b/src/core/ext/census/placeholders.c
index fe23d13971..fe23d13971 100644
--- a/src/core/lib/census/placeholders.c
+++ b/src/core/ext/census/placeholders.c
diff --git a/src/core/lib/census/rpc_metric_id.h b/src/core/ext/census/rpc_metric_id.h
index 0f05b7de8a..888ec500a7 100644
--- a/src/core/lib/census/rpc_metric_id.h
+++ b/src/core/ext/census/rpc_metric_id.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_LIB_CENSUS_RPC_METRIC_ID_H
-#define GRPC_CORE_LIB_CENSUS_RPC_METRIC_ID_H
+#ifndef GRPC_CORE_EXT_CENSUS_RPC_METRIC_ID_H
+#define GRPC_CORE_EXT_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_LIB_CENSUS_RPC_METRIC_ID_H */
+#endif /* GRPC_CORE_EXT_CENSUS_RPC_METRIC_ID_H */
diff --git a/src/core/lib/census/tracing.c b/src/core/ext/census/tracing.c
index 3b5d6dab2b..3b5d6dab2b 100644
--- a/src/core/lib/census/tracing.c
+++ b/src/core/ext/census/tracing.c
diff --git a/src/core/lib/statistics/window_stats.c b/src/core/ext/census/window_stats.c
index 9185e98d60..5f7bd9952e 100644
--- a/src/core/lib/statistics/window_stats.c
+++ b/src/core/ext/census/window_stats.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/lib/statistics/window_stats.h"
+#include "src/core/ext/census/window_stats.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/time.h>
diff --git a/src/core/lib/statistics/window_stats.h b/src/core/ext/census/window_stats.h
index 629c08b8d5..25658c9ce0 100644
--- a/src/core/lib/statistics/window_stats.h
+++ b/src/core/ext/census/window_stats.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_LIB_STATISTICS_WINDOW_STATS_H
-#define GRPC_CORE_LIB_STATISTICS_WINDOW_STATS_H
+#ifndef GRPC_CORE_EXT_CENSUS_WINDOW_STATS_H
+#define GRPC_CORE_EXT_CENSUS_WINDOW_STATS_H
 
 #include <grpc/support/time.h>
 
@@ -170,4 +170,4 @@ void census_window_stats_get_sums(const struct census_window_stats *wstats,
    assertion failure). This function is thread-compatible. */
 void census_window_stats_destroy(struct census_window_stats *wstats);
 
-#endif /* GRPC_CORE_LIB_STATISTICS_WINDOW_STATS_H */
+#endif /* GRPC_CORE_EXT_CENSUS_WINDOW_STATS_H */
diff --git a/src/core/ext/transport/chttp2/client/insecure/channel_create.c b/src/core/ext/transport/chttp2/client/insecure/channel_create.c
index a5f7c6cfbc..606fff5fb4 100644
--- a/src/core/ext/transport/chttp2/client/insecure/channel_create.c
+++ b/src/core/ext/transport/chttp2/client/insecure/channel_create.c
@@ -40,8 +40,8 @@
 #include <grpc/support/slice.h>
 #include <grpc/support/slice_buffer.h>
 
+#include "src/core/ext/census/grpc_filter.h"
 #include "src/core/ext/transport/chttp2/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"
diff --git a/src/core/lib/census/grpc_plugin.h b/src/core/lib/census/grpc_plugin.h
deleted file mode 100644
index 4d642a65c7..0000000000
--- a/src/core/lib/census/grpc_plugin.h
+++ /dev/null
@@ -1,40 +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.
- *
- */
-
-#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_LIB_CENSUS_GRPC_PLUGIN_H */
diff --git a/src/core/lib/surface/init.c b/src/core/lib/surface/init.c
index 566b030912..5ef9681180 100644
--- a/src/core/lib/surface/init.c
+++ b/src/core/lib/surface/init.c
@@ -39,9 +39,7 @@
 #include <grpc/grpc.h>
 #include <grpc/support/alloc.h>
 #include <grpc/support/time.h>
-/* TODO(ctiller): find another way? - better not to include census here */
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.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"
@@ -85,8 +83,6 @@ static int g_initializations;
 static void do_basic_init(void) {
   gpr_mu_init(&g_init_mu);
   grpc_register_built_in_plugins();
-  /* TODO(ctiller): ideally remove this strict linkage */
-  grpc_register_plugin(census_grpc_plugin_init, census_grpc_plugin_destroy);
   g_initializations = 0;
 }
 
diff --git a/src/core/plugin_registry/grpc_plugin_registry.c b/src/core/plugin_registry/grpc_plugin_registry.c
index 3e3c214c22..422d3c92b8 100644
--- a/src/core/plugin_registry/grpc_plugin_registry.c
+++ b/src/core/plugin_registry/grpc_plugin_registry.c
@@ -37,10 +37,14 @@ extern void grpc_lb_policy_pick_first_init(void);
 extern void grpc_lb_policy_pick_first_shutdown(void);
 extern void grpc_lb_policy_round_robin_init(void);
 extern void grpc_lb_policy_round_robin_shutdown(void);
+extern void census_grpc_plugin_init(void);
+extern void census_grpc_plugin_shutdown(void);
 
 void grpc_register_built_in_plugins(void) {
   grpc_register_plugin(grpc_lb_policy_pick_first_init,
                        grpc_lb_policy_pick_first_shutdown);
   grpc_register_plugin(grpc_lb_policy_round_robin_init,
                        grpc_lb_policy_round_robin_shutdown);
+  grpc_register_plugin(census_grpc_plugin_init,
+                       census_grpc_plugin_shutdown);
 }
diff --git a/src/core/plugin_registry/grpc_unsecure_plugin_registry.c b/src/core/plugin_registry/grpc_unsecure_plugin_registry.c
index 3e3c214c22..422d3c92b8 100644
--- a/src/core/plugin_registry/grpc_unsecure_plugin_registry.c
+++ b/src/core/plugin_registry/grpc_unsecure_plugin_registry.c
@@ -37,10 +37,14 @@ extern void grpc_lb_policy_pick_first_init(void);
 extern void grpc_lb_policy_pick_first_shutdown(void);
 extern void grpc_lb_policy_round_robin_init(void);
 extern void grpc_lb_policy_round_robin_shutdown(void);
+extern void census_grpc_plugin_init(void);
+extern void census_grpc_plugin_shutdown(void);
 
 void grpc_register_built_in_plugins(void) {
   grpc_register_plugin(grpc_lb_policy_pick_first_init,
                        grpc_lb_policy_pick_first_shutdown);
   grpc_register_plugin(grpc_lb_policy_round_robin_init,
                        grpc_lb_policy_round_robin_shutdown);
+  grpc_register_plugin(census_grpc_plugin_init,
+                       census_grpc_plugin_shutdown);
 }