Merge pull request #10364 from ctiller/lazy-batches

Lazily create batch control structures
diff --git a/BUILD b/BUILD
index 6c4d31d..c4632fc 100644
--- a/BUILD
+++ b/BUILD
@@ -75,6 +75,7 @@
         "grpc_transport_chttp2_client_secure",
         "grpc_transport_chttp2_server_insecure",
         "grpc_transport_chttp2_server_secure",
+        "grpc_max_age_filter",
     ],
 )
 
@@ -112,6 +113,7 @@
         "grpc_resolver_sockaddr",
         "grpc_transport_chttp2_client_insecure",
         "grpc_transport_chttp2_server_insecure",
+        "grpc_max_age_filter",
     ],
 )
 
@@ -175,6 +177,8 @@
     ],
     hdrs = [
         "src/compiler/config.h",
+        "src/compiler/schema_interface.h",
+        "src/compiler/protobuf_plugin.h",
         "src/compiler/cpp_generator.h",
         "src/compiler/cpp_generator_helpers.h",
         "src/compiler/csharp_generator.h",
@@ -187,6 +191,8 @@
         "src/compiler/php_generator.h",
         "src/compiler/php_generator_helpers.h",
         "src/compiler/python_generator.h",
+        "src/compiler/python_generator_helpers.h",
+        "src/compiler/python_private_generator.h",
         "src/compiler/ruby_generator.h",
         "src/compiler/ruby_generator_helpers-inl.h",
         "src/compiler/ruby_generator_map-inl.h",
@@ -436,7 +442,6 @@
         "src/core/lib/channel/handshaker_registry.c",
         "src/core/lib/channel/http_client_filter.c",
         "src/core/lib/channel/http_server_filter.c",
-        "src/core/lib/channel/max_age_filter.c",
         "src/core/lib/channel/message_size_filter.c",
         "src/core/lib/compression/compression.c",
         "src/core/lib/compression/message_compress.c",
@@ -564,7 +569,6 @@
         "src/core/lib/channel/handshaker_registry.h",
         "src/core/lib/channel/http_client_filter.h",
         "src/core/lib/channel/http_server_filter.h",
-        "src/core/lib/channel/max_age_filter.h",
         "src/core/lib/channel/message_size_filter.h",
         "src/core/lib/compression/algorithm_metadata.h",
         "src/core/lib/compression/message_compress.h",
@@ -689,46 +693,60 @@
 grpc_cc_library(
     name = "grpc_client_channel",
     srcs = [
-        "src/core/ext/client_channel/channel_connectivity.c",
-        "src/core/ext/client_channel/client_channel.c",
-        "src/core/ext/client_channel/client_channel_factory.c",
-        "src/core/ext/client_channel/client_channel_plugin.c",
-        "src/core/ext/client_channel/connector.c",
-        "src/core/ext/client_channel/http_connect_handshaker.c",
-        "src/core/ext/client_channel/http_proxy.c",
-        "src/core/ext/client_channel/lb_policy.c",
-        "src/core/ext/client_channel/lb_policy_factory.c",
-        "src/core/ext/client_channel/lb_policy_registry.c",
-        "src/core/ext/client_channel/parse_address.c",
-        "src/core/ext/client_channel/proxy_mapper.c",
-        "src/core/ext/client_channel/proxy_mapper_registry.c",
-        "src/core/ext/client_channel/resolver.c",
-        "src/core/ext/client_channel/resolver_factory.c",
-        "src/core/ext/client_channel/resolver_registry.c",
-        "src/core/ext/client_channel/retry_throttle.c",
-        "src/core/ext/client_channel/subchannel.c",
-        "src/core/ext/client_channel/subchannel_index.c",
-        "src/core/ext/client_channel/uri_parser.c",
+        "src/core/ext/filters/client_channel/channel_connectivity.c",
+        "src/core/ext/filters/client_channel/client_channel.c",
+        "src/core/ext/filters/client_channel/client_channel_factory.c",
+        "src/core/ext/filters/client_channel/client_channel_plugin.c",
+        "src/core/ext/filters/client_channel/connector.c",
+        "src/core/ext/filters/client_channel/http_connect_handshaker.c",
+        "src/core/ext/filters/client_channel/http_proxy.c",
+        "src/core/ext/filters/client_channel/lb_policy.c",
+        "src/core/ext/filters/client_channel/lb_policy_factory.c",
+        "src/core/ext/filters/client_channel/lb_policy_registry.c",
+        "src/core/ext/filters/client_channel/parse_address.c",
+        "src/core/ext/filters/client_channel/proxy_mapper.c",
+        "src/core/ext/filters/client_channel/proxy_mapper_registry.c",
+        "src/core/ext/filters/client_channel/resolver.c",
+        "src/core/ext/filters/client_channel/resolver_factory.c",
+        "src/core/ext/filters/client_channel/resolver_registry.c",
+        "src/core/ext/filters/client_channel/retry_throttle.c",
+        "src/core/ext/filters/client_channel/subchannel.c",
+        "src/core/ext/filters/client_channel/subchannel_index.c",
+        "src/core/ext/filters/client_channel/uri_parser.c",
     ],
     hdrs = [
-        "src/core/ext/client_channel/client_channel.h",
-        "src/core/ext/client_channel/client_channel_factory.h",
-        "src/core/ext/client_channel/connector.h",
-        "src/core/ext/client_channel/http_connect_handshaker.h",
-        "src/core/ext/client_channel/http_proxy.h",
-        "src/core/ext/client_channel/lb_policy.h",
-        "src/core/ext/client_channel/lb_policy_factory.h",
-        "src/core/ext/client_channel/lb_policy_registry.h",
-        "src/core/ext/client_channel/parse_address.h",
-        "src/core/ext/client_channel/proxy_mapper.h",
-        "src/core/ext/client_channel/proxy_mapper_registry.h",
-        "src/core/ext/client_channel/resolver.h",
-        "src/core/ext/client_channel/resolver_factory.h",
-        "src/core/ext/client_channel/resolver_registry.h",
-        "src/core/ext/client_channel/retry_throttle.h",
-        "src/core/ext/client_channel/subchannel.h",
-        "src/core/ext/client_channel/subchannel_index.h",
-        "src/core/ext/client_channel/uri_parser.h",
+        "src/core/ext/filters/client_channel/client_channel.h",
+        "src/core/ext/filters/client_channel/client_channel_factory.h",
+        "src/core/ext/filters/client_channel/connector.h",
+        "src/core/ext/filters/client_channel/http_connect_handshaker.h",
+        "src/core/ext/filters/client_channel/http_proxy.h",
+        "src/core/ext/filters/client_channel/lb_policy.h",
+        "src/core/ext/filters/client_channel/lb_policy_factory.h",
+        "src/core/ext/filters/client_channel/lb_policy_registry.h",
+        "src/core/ext/filters/client_channel/parse_address.h",
+        "src/core/ext/filters/client_channel/proxy_mapper.h",
+        "src/core/ext/filters/client_channel/proxy_mapper_registry.h",
+        "src/core/ext/filters/client_channel/resolver.h",
+        "src/core/ext/filters/client_channel/resolver_factory.h",
+        "src/core/ext/filters/client_channel/resolver_registry.h",
+        "src/core/ext/filters/client_channel/retry_throttle.h",
+        "src/core/ext/filters/client_channel/subchannel.h",
+        "src/core/ext/filters/client_channel/subchannel_index.h",
+        "src/core/ext/filters/client_channel/uri_parser.h",
+    ],
+    language = "c",
+    deps = [
+        "grpc_base",
+    ],
+)
+
+grpc_cc_library(
+    name = "grpc_max_age_filter",
+    srcs = [
+        "src/core/ext/filters/max_age/max_age_filter.c",
+    ],
+    hdrs = [
+        "src/core/ext/filters/max_age/max_age_filter.h",
     ],
     language = "c",
     deps = [
@@ -757,16 +775,16 @@
 grpc_cc_library(
     name = "grpc_lb_policy_grpclb",
     srcs = [
-        "src/core/ext/lb_policy/grpclb/grpclb.c",
-        "src/core/ext/lb_policy/grpclb/grpclb_channel.c",
-        "src/core/ext/lb_policy/grpclb/load_balancer_api.c",
-        "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.c",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c",
     ],
     hdrs = [
-        "src/core/ext/lb_policy/grpclb/grpclb.h",
-        "src/core/ext/lb_policy/grpclb/grpclb_channel.h",
-        "src/core/ext/lb_policy/grpclb/load_balancer_api.h",
-        "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h",
     ],
     external_deps = [
         "nanopb",
@@ -781,16 +799,16 @@
 grpc_cc_library(
     name = "grpc_lb_policy_grpclb_secure",
     srcs = [
-        "src/core/ext/lb_policy/grpclb/grpclb.c",
-        "src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c",
-        "src/core/ext/lb_policy/grpclb/load_balancer_api.c",
-        "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c",
     ],
     hdrs = [
-        "src/core/ext/lb_policy/grpclb/grpclb.h",
-        "src/core/ext/lb_policy/grpclb/grpclb_channel.h",
-        "src/core/ext/lb_policy/grpclb/load_balancer_api.h",
-        "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h",
+        "src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h",
     ],
     external_deps = [
         "nanopb",
@@ -806,7 +824,7 @@
 grpc_cc_library(
     name = "grpc_lb_policy_pick_first",
     srcs = [
-        "src/core/ext/lb_policy/pick_first/pick_first.c",
+        "src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c",
     ],
     language = "c",
     deps = [
@@ -818,7 +836,7 @@
 grpc_cc_library(
     name = "grpc_lb_policy_round_robin",
     srcs = [
-        "src/core/ext/lb_policy/round_robin/round_robin.c",
+        "src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c",
     ],
     language = "c",
     deps = [
@@ -830,12 +848,12 @@
 grpc_cc_library(
     name = "grpc_load_reporting",
     srcs = [
-        "src/core/ext/load_reporting/load_reporting.c",
-        "src/core/ext/load_reporting/load_reporting_filter.c",
+        "src/core/ext/filters/load_reporting/load_reporting.c",
+        "src/core/ext/filters/load_reporting/load_reporting_filter.c",
     ],
     hdrs = [
-        "src/core/ext/load_reporting/load_reporting.h",
-        "src/core/ext/load_reporting/load_reporting_filter.h",
+        "src/core/ext/filters/load_reporting/load_reporting.h",
+        "src/core/ext/filters/load_reporting/load_reporting_filter.h",
     ],
     language = "c",
     deps = [
@@ -846,7 +864,7 @@
 grpc_cc_library(
     name = "grpc_resolver_dns_native",
     srcs = [
-        "src/core/ext/resolver/dns/native/dns_resolver.c",
+        "src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c",
     ],
     language = "c",
     deps = [
@@ -858,13 +876,13 @@
 grpc_cc_library(
     name = "grpc_resolver_dns_ares",
     srcs = [
-        "src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c",
-        "src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c",
-        "src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c",
+        "src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c",
+        "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c",
+        "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c",
     ],
     hdrs = [
-        "src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h",
-        "src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h",
+        "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h",
+        "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h",
     ],
     language = "c",
     deps = [
@@ -879,7 +897,7 @@
 grpc_cc_library(
     name = "grpc_resolver_sockaddr",
     srcs = [
-        "src/core/ext/resolver/sockaddr/sockaddr_resolver.c",
+        "src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c",
     ],
     language = "c",
     deps = [
diff --git a/CMakeLists.txt b/CMakeLists.txt
index e3b2558..acf47e5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -918,7 +918,6 @@
   src/core/lib/channel/handshaker_registry.c
   src/core/lib/channel/http_client_filter.c
   src/core/lib/channel/http_server_filter.c
-  src/core/lib/channel/max_age_filter.c
   src/core/lib/channel/message_size_filter.c
   src/core/lib/compression/compression.c
   src/core/lib/compression/message_compress.c
@@ -1083,47 +1082,47 @@
   src/core/tsi/transport_security.c
   src/core/ext/transport/chttp2/server/chttp2_server.c
   src/core/ext/transport/chttp2/client/secure/secure_channel_create.c
-  src/core/ext/client_channel/channel_connectivity.c
-  src/core/ext/client_channel/client_channel.c
-  src/core/ext/client_channel/client_channel_factory.c
-  src/core/ext/client_channel/client_channel_plugin.c
-  src/core/ext/client_channel/connector.c
-  src/core/ext/client_channel/http_connect_handshaker.c
-  src/core/ext/client_channel/http_proxy.c
-  src/core/ext/client_channel/lb_policy.c
-  src/core/ext/client_channel/lb_policy_factory.c
-  src/core/ext/client_channel/lb_policy_registry.c
-  src/core/ext/client_channel/parse_address.c
-  src/core/ext/client_channel/proxy_mapper.c
-  src/core/ext/client_channel/proxy_mapper_registry.c
-  src/core/ext/client_channel/resolver.c
-  src/core/ext/client_channel/resolver_factory.c
-  src/core/ext/client_channel/resolver_registry.c
-  src/core/ext/client_channel/retry_throttle.c
-  src/core/ext/client_channel/subchannel.c
-  src/core/ext/client_channel/subchannel_index.c
-  src/core/ext/client_channel/uri_parser.c
+  src/core/ext/filters/client_channel/channel_connectivity.c
+  src/core/ext/filters/client_channel/client_channel.c
+  src/core/ext/filters/client_channel/client_channel_factory.c
+  src/core/ext/filters/client_channel/client_channel_plugin.c
+  src/core/ext/filters/client_channel/connector.c
+  src/core/ext/filters/client_channel/http_connect_handshaker.c
+  src/core/ext/filters/client_channel/http_proxy.c
+  src/core/ext/filters/client_channel/lb_policy.c
+  src/core/ext/filters/client_channel/lb_policy_factory.c
+  src/core/ext/filters/client_channel/lb_policy_registry.c
+  src/core/ext/filters/client_channel/parse_address.c
+  src/core/ext/filters/client_channel/proxy_mapper.c
+  src/core/ext/filters/client_channel/proxy_mapper_registry.c
+  src/core/ext/filters/client_channel/resolver.c
+  src/core/ext/filters/client_channel/resolver_factory.c
+  src/core/ext/filters/client_channel/resolver_registry.c
+  src/core/ext/filters/client_channel/retry_throttle.c
+  src/core/ext/filters/client_channel/subchannel.c
+  src/core/ext/filters/client_channel/subchannel_index.c
+  src/core/ext/filters/client_channel/uri_parser.c
   src/core/ext/transport/chttp2/client/chttp2_connector.c
   src/core/ext/transport/chttp2/server/insecure/server_chttp2.c
   src/core/ext/transport/chttp2/server/insecure/server_chttp2_posix.c
   src/core/ext/transport/chttp2/client/insecure/channel_create.c
   src/core/ext/transport/chttp2/client/insecure/channel_create_posix.c
-  src/core/ext/lb_policy/grpclb/grpclb.c
-  src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c
-  src/core/ext/lb_policy/grpclb/load_balancer_api.c
-  src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c
+  src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c
+  src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c
+  src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c
+  src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c
   third_party/nanopb/pb_common.c
   third_party/nanopb/pb_decode.c
   third_party/nanopb/pb_encode.c
-  src/core/ext/lb_policy/pick_first/pick_first.c
-  src/core/ext/lb_policy/round_robin/round_robin.c
-  src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c
-  src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c
-  src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c
-  src/core/ext/resolver/dns/native/dns_resolver.c
-  src/core/ext/resolver/sockaddr/sockaddr_resolver.c
-  src/core/ext/load_reporting/load_reporting.c
-  src/core/ext/load_reporting/load_reporting_filter.c
+  src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c
+  src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c
+  src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c
+  src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c
+  src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c
+  src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c
+  src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c
+  src/core/ext/filters/load_reporting/load_reporting.c
+  src/core/ext/filters/load_reporting/load_reporting_filter.c
   src/core/ext/census/base_resources.c
   src/core/ext/census/context.c
   src/core/ext/census/gen/census.pb.c
@@ -1138,6 +1137,7 @@
   src/core/ext/census/resource.c
   src/core/ext/census/trace_context.c
   src/core/ext/census/tracing.c
+  src/core/ext/filters/max_age/max_age_filter.c
   src/core/plugin_registry/grpc_plugin_registry.c
 )
 
@@ -1240,7 +1240,6 @@
   src/core/lib/channel/handshaker_registry.c
   src/core/lib/channel/http_client_filter.c
   src/core/lib/channel/http_server_filter.c
-  src/core/lib/channel/max_age_filter.c
   src/core/lib/channel/message_size_filter.c
   src/core/lib/compression/compression.c
   src/core/lib/compression/message_compress.c
@@ -1379,26 +1378,26 @@
   src/core/ext/transport/chttp2/transport/varint.c
   src/core/ext/transport/chttp2/transport/writing.c
   src/core/ext/transport/chttp2/alpn/alpn.c
-  src/core/ext/client_channel/channel_connectivity.c
-  src/core/ext/client_channel/client_channel.c
-  src/core/ext/client_channel/client_channel_factory.c
-  src/core/ext/client_channel/client_channel_plugin.c
-  src/core/ext/client_channel/connector.c
-  src/core/ext/client_channel/http_connect_handshaker.c
-  src/core/ext/client_channel/http_proxy.c
-  src/core/ext/client_channel/lb_policy.c
-  src/core/ext/client_channel/lb_policy_factory.c
-  src/core/ext/client_channel/lb_policy_registry.c
-  src/core/ext/client_channel/parse_address.c
-  src/core/ext/client_channel/proxy_mapper.c
-  src/core/ext/client_channel/proxy_mapper_registry.c
-  src/core/ext/client_channel/resolver.c
-  src/core/ext/client_channel/resolver_factory.c
-  src/core/ext/client_channel/resolver_registry.c
-  src/core/ext/client_channel/retry_throttle.c
-  src/core/ext/client_channel/subchannel.c
-  src/core/ext/client_channel/subchannel_index.c
-  src/core/ext/client_channel/uri_parser.c
+  src/core/ext/filters/client_channel/channel_connectivity.c
+  src/core/ext/filters/client_channel/client_channel.c
+  src/core/ext/filters/client_channel/client_channel_factory.c
+  src/core/ext/filters/client_channel/client_channel_plugin.c
+  src/core/ext/filters/client_channel/connector.c
+  src/core/ext/filters/client_channel/http_connect_handshaker.c
+  src/core/ext/filters/client_channel/http_proxy.c
+  src/core/ext/filters/client_channel/lb_policy.c
+  src/core/ext/filters/client_channel/lb_policy_factory.c
+  src/core/ext/filters/client_channel/lb_policy_registry.c
+  src/core/ext/filters/client_channel/parse_address.c
+  src/core/ext/filters/client_channel/proxy_mapper.c
+  src/core/ext/filters/client_channel/proxy_mapper_registry.c
+  src/core/ext/filters/client_channel/resolver.c
+  src/core/ext/filters/client_channel/resolver_factory.c
+  src/core/ext/filters/client_channel/resolver_registry.c
+  src/core/ext/filters/client_channel/retry_throttle.c
+  src/core/ext/filters/client_channel/subchannel.c
+  src/core/ext/filters/client_channel/subchannel_index.c
+  src/core/ext/filters/client_channel/uri_parser.c
   src/core/lib/http/httpcli_security_connector.c
   src/core/lib/security/context/security_context.c
   src/core/lib/security/credentials/composite/composite_credentials.c
@@ -1427,8 +1426,8 @@
   src/core/tsi/ssl_transport_security.c
   src/core/tsi/transport_security.c
   src/core/ext/transport/chttp2/client/chttp2_connector.c
-  src/core/ext/load_reporting/load_reporting.c
-  src/core/ext/load_reporting/load_reporting_filter.c
+  src/core/ext/filters/load_reporting/load_reporting.c
+  src/core/ext/filters/load_reporting/load_reporting_filter.c
   src/core/plugin_registry/grpc_cronet_plugin_registry.c
 )
 
@@ -1549,7 +1548,6 @@
   src/core/lib/channel/handshaker_registry.c
   src/core/lib/channel/http_client_filter.c
   src/core/lib/channel/http_server_filter.c
-  src/core/lib/channel/max_age_filter.c
   src/core/lib/channel/message_size_filter.c
   src/core/lib/compression/compression.c
   src/core/lib/compression/message_compress.c
@@ -1810,7 +1808,6 @@
   src/core/lib/channel/handshaker_registry.c
   src/core/lib/channel/http_client_filter.c
   src/core/lib/channel/http_server_filter.c
-  src/core/lib/channel/max_age_filter.c
   src/core/lib/channel/message_size_filter.c
   src/core/lib/compression/compression.c
   src/core/lib/compression/message_compress.c
@@ -1951,42 +1948,42 @@
   src/core/ext/transport/chttp2/client/insecure/channel_create.c
   src/core/ext/transport/chttp2/client/insecure/channel_create_posix.c
   src/core/ext/transport/chttp2/client/chttp2_connector.c
-  src/core/ext/client_channel/channel_connectivity.c
-  src/core/ext/client_channel/client_channel.c
-  src/core/ext/client_channel/client_channel_factory.c
-  src/core/ext/client_channel/client_channel_plugin.c
-  src/core/ext/client_channel/connector.c
-  src/core/ext/client_channel/http_connect_handshaker.c
-  src/core/ext/client_channel/http_proxy.c
-  src/core/ext/client_channel/lb_policy.c
-  src/core/ext/client_channel/lb_policy_factory.c
-  src/core/ext/client_channel/lb_policy_registry.c
-  src/core/ext/client_channel/parse_address.c
-  src/core/ext/client_channel/proxy_mapper.c
-  src/core/ext/client_channel/proxy_mapper_registry.c
-  src/core/ext/client_channel/resolver.c
-  src/core/ext/client_channel/resolver_factory.c
-  src/core/ext/client_channel/resolver_registry.c
-  src/core/ext/client_channel/retry_throttle.c
-  src/core/ext/client_channel/subchannel.c
-  src/core/ext/client_channel/subchannel_index.c
-  src/core/ext/client_channel/uri_parser.c
-  src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c
-  src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c
-  src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c
-  src/core/ext/resolver/dns/native/dns_resolver.c
-  src/core/ext/resolver/sockaddr/sockaddr_resolver.c
-  src/core/ext/load_reporting/load_reporting.c
-  src/core/ext/load_reporting/load_reporting_filter.c
-  src/core/ext/lb_policy/grpclb/grpclb.c
-  src/core/ext/lb_policy/grpclb/grpclb_channel.c
-  src/core/ext/lb_policy/grpclb/load_balancer_api.c
-  src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c
+  src/core/ext/filters/client_channel/channel_connectivity.c
+  src/core/ext/filters/client_channel/client_channel.c
+  src/core/ext/filters/client_channel/client_channel_factory.c
+  src/core/ext/filters/client_channel/client_channel_plugin.c
+  src/core/ext/filters/client_channel/connector.c
+  src/core/ext/filters/client_channel/http_connect_handshaker.c
+  src/core/ext/filters/client_channel/http_proxy.c
+  src/core/ext/filters/client_channel/lb_policy.c
+  src/core/ext/filters/client_channel/lb_policy_factory.c
+  src/core/ext/filters/client_channel/lb_policy_registry.c
+  src/core/ext/filters/client_channel/parse_address.c
+  src/core/ext/filters/client_channel/proxy_mapper.c
+  src/core/ext/filters/client_channel/proxy_mapper_registry.c
+  src/core/ext/filters/client_channel/resolver.c
+  src/core/ext/filters/client_channel/resolver_factory.c
+  src/core/ext/filters/client_channel/resolver_registry.c
+  src/core/ext/filters/client_channel/retry_throttle.c
+  src/core/ext/filters/client_channel/subchannel.c
+  src/core/ext/filters/client_channel/subchannel_index.c
+  src/core/ext/filters/client_channel/uri_parser.c
+  src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c
+  src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c
+  src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c
+  src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c
+  src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c
+  src/core/ext/filters/load_reporting/load_reporting.c
+  src/core/ext/filters/load_reporting/load_reporting_filter.c
+  src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c
+  src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.c
+  src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c
+  src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c
   third_party/nanopb/pb_common.c
   third_party/nanopb/pb_decode.c
   third_party/nanopb/pb_encode.c
-  src/core/ext/lb_policy/pick_first/pick_first.c
-  src/core/ext/lb_policy/round_robin/round_robin.c
+  src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c
+  src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c
   src/core/ext/census/base_resources.c
   src/core/ext/census/context.c
   src/core/ext/census/gen/census.pb.c
@@ -2001,6 +1998,7 @@
   src/core/ext/census/resource.c
   src/core/ext/census/trace_context.c
   src/core/ext/census/tracing.c
+  src/core/ext/filters/max_age/max_age_filter.c
   src/core/plugin_registry/grpc_unsecure_plugin_registry.c
 )
 
@@ -2226,7 +2224,6 @@
   src/core/lib/channel/handshaker_registry.c
   src/core/lib/channel/http_client_filter.c
   src/core/lib/channel/http_server_filter.c
-  src/core/lib/channel/max_age_filter.c
   src/core/lib/channel/message_size_filter.c
   src/core/lib/compression/compression.c
   src/core/lib/compression/message_compress.c
@@ -2557,7 +2554,6 @@
   src/core/lib/channel/handshaker_registry.c
   src/core/lib/channel/http_client_filter.c
   src/core/lib/channel/http_server_filter.c
-  src/core/lib/channel/max_age_filter.c
   src/core/lib/channel/message_size_filter.c
   src/core/lib/compression/compression.c
   src/core/lib/compression/message_compress.c
@@ -2699,26 +2695,26 @@
   src/core/ext/transport/chttp2/transport/varint.c
   src/core/ext/transport/chttp2/transport/writing.c
   src/core/ext/transport/chttp2/alpn/alpn.c
-  src/core/ext/client_channel/channel_connectivity.c
-  src/core/ext/client_channel/client_channel.c
-  src/core/ext/client_channel/client_channel_factory.c
-  src/core/ext/client_channel/client_channel_plugin.c
-  src/core/ext/client_channel/connector.c
-  src/core/ext/client_channel/http_connect_handshaker.c
-  src/core/ext/client_channel/http_proxy.c
-  src/core/ext/client_channel/lb_policy.c
-  src/core/ext/client_channel/lb_policy_factory.c
-  src/core/ext/client_channel/lb_policy_registry.c
-  src/core/ext/client_channel/parse_address.c
-  src/core/ext/client_channel/proxy_mapper.c
-  src/core/ext/client_channel/proxy_mapper_registry.c
-  src/core/ext/client_channel/resolver.c
-  src/core/ext/client_channel/resolver_factory.c
-  src/core/ext/client_channel/resolver_registry.c
-  src/core/ext/client_channel/retry_throttle.c
-  src/core/ext/client_channel/subchannel.c
-  src/core/ext/client_channel/subchannel_index.c
-  src/core/ext/client_channel/uri_parser.c
+  src/core/ext/filters/client_channel/channel_connectivity.c
+  src/core/ext/filters/client_channel/client_channel.c
+  src/core/ext/filters/client_channel/client_channel_factory.c
+  src/core/ext/filters/client_channel/client_channel_plugin.c
+  src/core/ext/filters/client_channel/connector.c
+  src/core/ext/filters/client_channel/http_connect_handshaker.c
+  src/core/ext/filters/client_channel/http_proxy.c
+  src/core/ext/filters/client_channel/lb_policy.c
+  src/core/ext/filters/client_channel/lb_policy_factory.c
+  src/core/ext/filters/client_channel/lb_policy_registry.c
+  src/core/ext/filters/client_channel/parse_address.c
+  src/core/ext/filters/client_channel/proxy_mapper.c
+  src/core/ext/filters/client_channel/proxy_mapper_registry.c
+  src/core/ext/filters/client_channel/resolver.c
+  src/core/ext/filters/client_channel/resolver_factory.c
+  src/core/ext/filters/client_channel/resolver_registry.c
+  src/core/ext/filters/client_channel/retry_throttle.c
+  src/core/ext/filters/client_channel/subchannel.c
+  src/core/ext/filters/client_channel/subchannel_index.c
+  src/core/ext/filters/client_channel/uri_parser.c
   src/core/ext/transport/chttp2/server/insecure/server_chttp2.c
   src/core/ext/transport/chttp2/server/insecure/server_chttp2_posix.c
   src/core/ext/transport/chttp2/server/chttp2_server.c
@@ -3256,7 +3252,6 @@
   src/core/lib/channel/handshaker_registry.c
   src/core/lib/channel/http_client_filter.c
   src/core/lib/channel/http_server_filter.c
-  src/core/lib/channel/max_age_filter.c
   src/core/lib/channel/message_size_filter.c
   src/core/lib/compression/compression.c
   src/core/lib/compression/message_compress.c
@@ -4391,6 +4386,7 @@
   test/core/end2end/end2end_test_utils.c
   test/core/end2end/tests/authority_not_supported.c
   test/core/end2end/tests/bad_hostname.c
+  test/core/end2end/tests/bad_ping.c
   test/core/end2end/tests/binary_metadata.c
   test/core/end2end/tests/call_creds.c
   test/core/end2end/tests/cancel_after_accept.c
@@ -4488,6 +4484,7 @@
   test/core/end2end/end2end_test_utils.c
   test/core/end2end/tests/authority_not_supported.c
   test/core/end2end/tests/bad_hostname.c
+  test/core/end2end/tests/bad_ping.c
   test/core/end2end/tests/binary_metadata.c
   test/core/end2end/tests/cancel_after_accept.c
   test/core/end2end/tests/cancel_after_client_done.c
diff --git a/Makefile b/Makefile
index 7499dbb..5ad0557 100644
--- a/Makefile
+++ b/Makefile
@@ -2820,7 +2820,6 @@
     src/core/lib/channel/handshaker_registry.c \
     src/core/lib/channel/http_client_filter.c \
     src/core/lib/channel/http_server_filter.c \
-    src/core/lib/channel/max_age_filter.c \
     src/core/lib/channel/message_size_filter.c \
     src/core/lib/compression/compression.c \
     src/core/lib/compression/message_compress.c \
@@ -2985,47 +2984,47 @@
     src/core/tsi/transport_security.c \
     src/core/ext/transport/chttp2/server/chttp2_server.c \
     src/core/ext/transport/chttp2/client/secure/secure_channel_create.c \
-    src/core/ext/client_channel/channel_connectivity.c \
-    src/core/ext/client_channel/client_channel.c \
-    src/core/ext/client_channel/client_channel_factory.c \
-    src/core/ext/client_channel/client_channel_plugin.c \
-    src/core/ext/client_channel/connector.c \
-    src/core/ext/client_channel/http_connect_handshaker.c \
-    src/core/ext/client_channel/http_proxy.c \
-    src/core/ext/client_channel/lb_policy.c \
-    src/core/ext/client_channel/lb_policy_factory.c \
-    src/core/ext/client_channel/lb_policy_registry.c \
-    src/core/ext/client_channel/parse_address.c \
-    src/core/ext/client_channel/proxy_mapper.c \
-    src/core/ext/client_channel/proxy_mapper_registry.c \
-    src/core/ext/client_channel/resolver.c \
-    src/core/ext/client_channel/resolver_factory.c \
-    src/core/ext/client_channel/resolver_registry.c \
-    src/core/ext/client_channel/retry_throttle.c \
-    src/core/ext/client_channel/subchannel.c \
-    src/core/ext/client_channel/subchannel_index.c \
-    src/core/ext/client_channel/uri_parser.c \
+    src/core/ext/filters/client_channel/channel_connectivity.c \
+    src/core/ext/filters/client_channel/client_channel.c \
+    src/core/ext/filters/client_channel/client_channel_factory.c \
+    src/core/ext/filters/client_channel/client_channel_plugin.c \
+    src/core/ext/filters/client_channel/connector.c \
+    src/core/ext/filters/client_channel/http_connect_handshaker.c \
+    src/core/ext/filters/client_channel/http_proxy.c \
+    src/core/ext/filters/client_channel/lb_policy.c \
+    src/core/ext/filters/client_channel/lb_policy_factory.c \
+    src/core/ext/filters/client_channel/lb_policy_registry.c \
+    src/core/ext/filters/client_channel/parse_address.c \
+    src/core/ext/filters/client_channel/proxy_mapper.c \
+    src/core/ext/filters/client_channel/proxy_mapper_registry.c \
+    src/core/ext/filters/client_channel/resolver.c \
+    src/core/ext/filters/client_channel/resolver_factory.c \
+    src/core/ext/filters/client_channel/resolver_registry.c \
+    src/core/ext/filters/client_channel/retry_throttle.c \
+    src/core/ext/filters/client_channel/subchannel.c \
+    src/core/ext/filters/client_channel/subchannel_index.c \
+    src/core/ext/filters/client_channel/uri_parser.c \
     src/core/ext/transport/chttp2/client/chttp2_connector.c \
     src/core/ext/transport/chttp2/server/insecure/server_chttp2.c \
     src/core/ext/transport/chttp2/server/insecure/server_chttp2_posix.c \
     src/core/ext/transport/chttp2/client/insecure/channel_create.c \
     src/core/ext/transport/chttp2/client/insecure/channel_create_posix.c \
-    src/core/ext/lb_policy/grpclb/grpclb.c \
-    src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c \
-    src/core/ext/lb_policy/grpclb/load_balancer_api.c \
-    src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c \
+    src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c \
+    src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c \
+    src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c \
+    src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c \
     third_party/nanopb/pb_common.c \
     third_party/nanopb/pb_decode.c \
     third_party/nanopb/pb_encode.c \
-    src/core/ext/lb_policy/pick_first/pick_first.c \
-    src/core/ext/lb_policy/round_robin/round_robin.c \
-    src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c \
-    src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c \
-    src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c \
-    src/core/ext/resolver/dns/native/dns_resolver.c \
-    src/core/ext/resolver/sockaddr/sockaddr_resolver.c \
-    src/core/ext/load_reporting/load_reporting.c \
-    src/core/ext/load_reporting/load_reporting_filter.c \
+    src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c \
+    src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c \
+    src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c \
+    src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c \
+    src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c \
+    src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c \
+    src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c \
+    src/core/ext/filters/load_reporting/load_reporting.c \
+    src/core/ext/filters/load_reporting/load_reporting_filter.c \
     src/core/ext/census/base_resources.c \
     src/core/ext/census/context.c \
     src/core/ext/census/gen/census.pb.c \
@@ -3040,6 +3039,7 @@
     src/core/ext/census/resource.c \
     src/core/ext/census/trace_context.c \
     src/core/ext/census/tracing.c \
+    src/core/ext/filters/max_age/max_age_filter.c \
     src/core/plugin_registry/grpc_plugin_registry.c \
 
 PUBLIC_HEADERS_C += \
@@ -3140,7 +3140,6 @@
     src/core/lib/channel/handshaker_registry.c \
     src/core/lib/channel/http_client_filter.c \
     src/core/lib/channel/http_server_filter.c \
-    src/core/lib/channel/max_age_filter.c \
     src/core/lib/channel/message_size_filter.c \
     src/core/lib/compression/compression.c \
     src/core/lib/compression/message_compress.c \
@@ -3279,26 +3278,26 @@
     src/core/ext/transport/chttp2/transport/varint.c \
     src/core/ext/transport/chttp2/transport/writing.c \
     src/core/ext/transport/chttp2/alpn/alpn.c \
-    src/core/ext/client_channel/channel_connectivity.c \
-    src/core/ext/client_channel/client_channel.c \
-    src/core/ext/client_channel/client_channel_factory.c \
-    src/core/ext/client_channel/client_channel_plugin.c \
-    src/core/ext/client_channel/connector.c \
-    src/core/ext/client_channel/http_connect_handshaker.c \
-    src/core/ext/client_channel/http_proxy.c \
-    src/core/ext/client_channel/lb_policy.c \
-    src/core/ext/client_channel/lb_policy_factory.c \
-    src/core/ext/client_channel/lb_policy_registry.c \
-    src/core/ext/client_channel/parse_address.c \
-    src/core/ext/client_channel/proxy_mapper.c \
-    src/core/ext/client_channel/proxy_mapper_registry.c \
-    src/core/ext/client_channel/resolver.c \
-    src/core/ext/client_channel/resolver_factory.c \
-    src/core/ext/client_channel/resolver_registry.c \
-    src/core/ext/client_channel/retry_throttle.c \
-    src/core/ext/client_channel/subchannel.c \
-    src/core/ext/client_channel/subchannel_index.c \
-    src/core/ext/client_channel/uri_parser.c \
+    src/core/ext/filters/client_channel/channel_connectivity.c \
+    src/core/ext/filters/client_channel/client_channel.c \
+    src/core/ext/filters/client_channel/client_channel_factory.c \
+    src/core/ext/filters/client_channel/client_channel_plugin.c \
+    src/core/ext/filters/client_channel/connector.c \
+    src/core/ext/filters/client_channel/http_connect_handshaker.c \
+    src/core/ext/filters/client_channel/http_proxy.c \
+    src/core/ext/filters/client_channel/lb_policy.c \
+    src/core/ext/filters/client_channel/lb_policy_factory.c \
+    src/core/ext/filters/client_channel/lb_policy_registry.c \
+    src/core/ext/filters/client_channel/parse_address.c \
+    src/core/ext/filters/client_channel/proxy_mapper.c \
+    src/core/ext/filters/client_channel/proxy_mapper_registry.c \
+    src/core/ext/filters/client_channel/resolver.c \
+    src/core/ext/filters/client_channel/resolver_factory.c \
+    src/core/ext/filters/client_channel/resolver_registry.c \
+    src/core/ext/filters/client_channel/retry_throttle.c \
+    src/core/ext/filters/client_channel/subchannel.c \
+    src/core/ext/filters/client_channel/subchannel_index.c \
+    src/core/ext/filters/client_channel/uri_parser.c \
     src/core/lib/http/httpcli_security_connector.c \
     src/core/lib/security/context/security_context.c \
     src/core/lib/security/credentials/composite/composite_credentials.c \
@@ -3327,8 +3326,8 @@
     src/core/tsi/ssl_transport_security.c \
     src/core/tsi/transport_security.c \
     src/core/ext/transport/chttp2/client/chttp2_connector.c \
-    src/core/ext/load_reporting/load_reporting.c \
-    src/core/ext/load_reporting/load_reporting_filter.c \
+    src/core/ext/filters/load_reporting/load_reporting.c \
+    src/core/ext/filters/load_reporting/load_reporting_filter.c \
     src/core/plugin_registry/grpc_cronet_plugin_registry.c \
 
 PUBLIC_HEADERS_C += \
@@ -3448,7 +3447,6 @@
     src/core/lib/channel/handshaker_registry.c \
     src/core/lib/channel/http_client_filter.c \
     src/core/lib/channel/http_server_filter.c \
-    src/core/lib/channel/max_age_filter.c \
     src/core/lib/channel/message_size_filter.c \
     src/core/lib/compression/compression.c \
     src/core/lib/compression/message_compress.c \
@@ -3681,7 +3679,6 @@
     src/core/lib/channel/handshaker_registry.c \
     src/core/lib/channel/http_client_filter.c \
     src/core/lib/channel/http_server_filter.c \
-    src/core/lib/channel/max_age_filter.c \
     src/core/lib/channel/message_size_filter.c \
     src/core/lib/compression/compression.c \
     src/core/lib/compression/message_compress.c \
@@ -3822,42 +3819,42 @@
     src/core/ext/transport/chttp2/client/insecure/channel_create.c \
     src/core/ext/transport/chttp2/client/insecure/channel_create_posix.c \
     src/core/ext/transport/chttp2/client/chttp2_connector.c \
-    src/core/ext/client_channel/channel_connectivity.c \
-    src/core/ext/client_channel/client_channel.c \
-    src/core/ext/client_channel/client_channel_factory.c \
-    src/core/ext/client_channel/client_channel_plugin.c \
-    src/core/ext/client_channel/connector.c \
-    src/core/ext/client_channel/http_connect_handshaker.c \
-    src/core/ext/client_channel/http_proxy.c \
-    src/core/ext/client_channel/lb_policy.c \
-    src/core/ext/client_channel/lb_policy_factory.c \
-    src/core/ext/client_channel/lb_policy_registry.c \
-    src/core/ext/client_channel/parse_address.c \
-    src/core/ext/client_channel/proxy_mapper.c \
-    src/core/ext/client_channel/proxy_mapper_registry.c \
-    src/core/ext/client_channel/resolver.c \
-    src/core/ext/client_channel/resolver_factory.c \
-    src/core/ext/client_channel/resolver_registry.c \
-    src/core/ext/client_channel/retry_throttle.c \
-    src/core/ext/client_channel/subchannel.c \
-    src/core/ext/client_channel/subchannel_index.c \
-    src/core/ext/client_channel/uri_parser.c \
-    src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c \
-    src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c \
-    src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c \
-    src/core/ext/resolver/dns/native/dns_resolver.c \
-    src/core/ext/resolver/sockaddr/sockaddr_resolver.c \
-    src/core/ext/load_reporting/load_reporting.c \
-    src/core/ext/load_reporting/load_reporting_filter.c \
-    src/core/ext/lb_policy/grpclb/grpclb.c \
-    src/core/ext/lb_policy/grpclb/grpclb_channel.c \
-    src/core/ext/lb_policy/grpclb/load_balancer_api.c \
-    src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c \
+    src/core/ext/filters/client_channel/channel_connectivity.c \
+    src/core/ext/filters/client_channel/client_channel.c \
+    src/core/ext/filters/client_channel/client_channel_factory.c \
+    src/core/ext/filters/client_channel/client_channel_plugin.c \
+    src/core/ext/filters/client_channel/connector.c \
+    src/core/ext/filters/client_channel/http_connect_handshaker.c \
+    src/core/ext/filters/client_channel/http_proxy.c \
+    src/core/ext/filters/client_channel/lb_policy.c \
+    src/core/ext/filters/client_channel/lb_policy_factory.c \
+    src/core/ext/filters/client_channel/lb_policy_registry.c \
+    src/core/ext/filters/client_channel/parse_address.c \
+    src/core/ext/filters/client_channel/proxy_mapper.c \
+    src/core/ext/filters/client_channel/proxy_mapper_registry.c \
+    src/core/ext/filters/client_channel/resolver.c \
+    src/core/ext/filters/client_channel/resolver_factory.c \
+    src/core/ext/filters/client_channel/resolver_registry.c \
+    src/core/ext/filters/client_channel/retry_throttle.c \
+    src/core/ext/filters/client_channel/subchannel.c \
+    src/core/ext/filters/client_channel/subchannel_index.c \
+    src/core/ext/filters/client_channel/uri_parser.c \
+    src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c \
+    src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c \
+    src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c \
+    src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c \
+    src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c \
+    src/core/ext/filters/load_reporting/load_reporting.c \
+    src/core/ext/filters/load_reporting/load_reporting_filter.c \
+    src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c \
+    src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.c \
+    src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c \
+    src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c \
     third_party/nanopb/pb_common.c \
     third_party/nanopb/pb_decode.c \
     third_party/nanopb/pb_encode.c \
-    src/core/ext/lb_policy/pick_first/pick_first.c \
-    src/core/ext/lb_policy/round_robin/round_robin.c \
+    src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c \
+    src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c \
     src/core/ext/census/base_resources.c \
     src/core/ext/census/context.c \
     src/core/ext/census/gen/census.pb.c \
@@ -3872,6 +3869,7 @@
     src/core/ext/census/resource.c \
     src/core/ext/census/trace_context.c \
     src/core/ext/census/tracing.c \
+    src/core/ext/filters/max_age/max_age_filter.c \
     src/core/plugin_registry/grpc_unsecure_plugin_registry.c \
 
 PUBLIC_HEADERS_C += \
@@ -4074,7 +4072,6 @@
     src/core/lib/channel/handshaker_registry.c \
     src/core/lib/channel/http_client_filter.c \
     src/core/lib/channel/http_server_filter.c \
-    src/core/lib/channel/max_age_filter.c \
     src/core/lib/channel/message_size_filter.c \
     src/core/lib/compression/compression.c \
     src/core/lib/compression/message_compress.c \
@@ -4413,7 +4410,6 @@
     src/core/lib/channel/handshaker_registry.c \
     src/core/lib/channel/http_client_filter.c \
     src/core/lib/channel/http_server_filter.c \
-    src/core/lib/channel/max_age_filter.c \
     src/core/lib/channel/message_size_filter.c \
     src/core/lib/compression/compression.c \
     src/core/lib/compression/message_compress.c \
@@ -4555,26 +4551,26 @@
     src/core/ext/transport/chttp2/transport/varint.c \
     src/core/ext/transport/chttp2/transport/writing.c \
     src/core/ext/transport/chttp2/alpn/alpn.c \
-    src/core/ext/client_channel/channel_connectivity.c \
-    src/core/ext/client_channel/client_channel.c \
-    src/core/ext/client_channel/client_channel_factory.c \
-    src/core/ext/client_channel/client_channel_plugin.c \
-    src/core/ext/client_channel/connector.c \
-    src/core/ext/client_channel/http_connect_handshaker.c \
-    src/core/ext/client_channel/http_proxy.c \
-    src/core/ext/client_channel/lb_policy.c \
-    src/core/ext/client_channel/lb_policy_factory.c \
-    src/core/ext/client_channel/lb_policy_registry.c \
-    src/core/ext/client_channel/parse_address.c \
-    src/core/ext/client_channel/proxy_mapper.c \
-    src/core/ext/client_channel/proxy_mapper_registry.c \
-    src/core/ext/client_channel/resolver.c \
-    src/core/ext/client_channel/resolver_factory.c \
-    src/core/ext/client_channel/resolver_registry.c \
-    src/core/ext/client_channel/retry_throttle.c \
-    src/core/ext/client_channel/subchannel.c \
-    src/core/ext/client_channel/subchannel_index.c \
-    src/core/ext/client_channel/uri_parser.c \
+    src/core/ext/filters/client_channel/channel_connectivity.c \
+    src/core/ext/filters/client_channel/client_channel.c \
+    src/core/ext/filters/client_channel/client_channel_factory.c \
+    src/core/ext/filters/client_channel/client_channel_plugin.c \
+    src/core/ext/filters/client_channel/connector.c \
+    src/core/ext/filters/client_channel/http_connect_handshaker.c \
+    src/core/ext/filters/client_channel/http_proxy.c \
+    src/core/ext/filters/client_channel/lb_policy.c \
+    src/core/ext/filters/client_channel/lb_policy_factory.c \
+    src/core/ext/filters/client_channel/lb_policy_registry.c \
+    src/core/ext/filters/client_channel/parse_address.c \
+    src/core/ext/filters/client_channel/proxy_mapper.c \
+    src/core/ext/filters/client_channel/proxy_mapper_registry.c \
+    src/core/ext/filters/client_channel/resolver.c \
+    src/core/ext/filters/client_channel/resolver_factory.c \
+    src/core/ext/filters/client_channel/resolver_registry.c \
+    src/core/ext/filters/client_channel/retry_throttle.c \
+    src/core/ext/filters/client_channel/subchannel.c \
+    src/core/ext/filters/client_channel/subchannel_index.c \
+    src/core/ext/filters/client_channel/uri_parser.c \
     src/core/ext/transport/chttp2/server/insecure/server_chttp2.c \
     src/core/ext/transport/chttp2/server/insecure/server_chttp2_posix.c \
     src/core/ext/transport/chttp2/server/chttp2_server.c \
@@ -5104,7 +5100,6 @@
     src/core/lib/channel/handshaker_registry.c \
     src/core/lib/channel/http_client_filter.c \
     src/core/lib/channel/http_server_filter.c \
-    src/core/lib/channel/max_age_filter.c \
     src/core/lib/channel/message_size_filter.c \
     src/core/lib/compression/compression.c \
     src/core/lib/compression/message_compress.c \
@@ -8226,6 +8221,7 @@
     test/core/end2end/end2end_test_utils.c \
     test/core/end2end/tests/authority_not_supported.c \
     test/core/end2end/tests/bad_hostname.c \
+    test/core/end2end/tests/bad_ping.c \
     test/core/end2end/tests/binary_metadata.c \
     test/core/end2end/tests/call_creds.c \
     test/core/end2end/tests/cancel_after_accept.c \
@@ -8318,6 +8314,7 @@
     test/core/end2end/end2end_test_utils.c \
     test/core/end2end/tests/authority_not_supported.c \
     test/core/end2end/tests/bad_hostname.c \
+    test/core/end2end/tests/bad_ping.c \
     test/core/end2end/tests/binary_metadata.c \
     test/core/end2end/tests/cancel_after_accept.c \
     test/core/end2end/tests/cancel_after_client_done.c \
@@ -19176,7 +19173,7 @@
 # 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/ext/lb_policy/grpclb/grpclb_channel_secure.c: $(OPENSSL_DEP)
+src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c: $(OPENSSL_DEP)
 src/core/ext/transport/chttp2/client/secure/secure_channel_create.c: $(OPENSSL_DEP)
 src/core/ext/transport/chttp2/server/secure/server_secure_chttp2.c: $(OPENSSL_DEP)
 src/core/ext/transport/cronet/client/secure/cronet_channel_create.c: $(OPENSSL_DEP)
diff --git a/binding.gyp b/binding.gyp
index cd2de83..3444fa5 100644
--- a/binding.gyp
+++ b/binding.gyp
@@ -45,9 +45,42 @@
     # Some Node installations use the system installation of OpenSSL, and on
     # some systems, the system OpenSSL still does not have ALPN support. This
     # will let users recompile gRPC to work without ALPN.
-    'grpc_alpn%': 'true'
+    'grpc_alpn%': 'true',
+    # Indicates that the library should be built with gcov.
+    'grpc_gcov%': 'false'
   },
   'target_defaults': {
+    'configurations': {
+      'Release': {
+        'cflags': [
+            '-O2',
+        ],
+        'defines': [
+            'NDEBUG',
+        ],
+      },
+      'Debug': {
+        'cflags': [
+            '-O0',
+        ],
+        'defines': [
+            '_DEBUG',
+            'DEBUG',
+        ],
+      },
+    },
+    'cflags': [
+        '-g',
+        '-Wall',
+        '-Wextra',
+        '-Werror',
+        '-Wno-long-long',
+        '-Wno-unused-parameter',
+        '-DOSATOMIC_USE_INLINED=1',
+    ],
+    'ldflags': [
+        '-g',
+    ],
     'include_dirs': [
       '.',
       'include'
@@ -64,6 +97,24 @@
           'GRPC_UV'
         ]
       }],
+      ['grpc_gcov=="true"', {
+        'cflags': [
+            '-O0',
+            '-fprofile-arcs',
+            '-ftest-coverage',
+            '-Wno-return-type',
+        ],
+        'defines': [
+            '_DEBUG',
+            'DEBUG',
+            'GPR_GCOV',
+        ],
+        'ldflags': [
+            '-fprofile-arcs',
+            '-ftest-coverage',
+            '-rdynamic',
+        ],
+      }],
       ['OS!="win" and runtime=="electron"', {
         "defines": [
           'OPENSSL_NO_THREADS'
@@ -126,26 +177,9 @@
           "ws2_32"
         ]
       }, { # OS != "win"
-        'variables': {
-          'config': '<!(echo $CONFIG)',
-        },
         'include_dirs': [
           '<(node_root_dir)/deps/zlib',
-          '<(node_root_dir)/deps/cares/include',
-        ],
-        'conditions': [
-          ['config=="gcov"', {
-            'cflags': [
-              '-ftest-coverage',
-              '-fprofile-arcs',
-              '-O0'
-            ],
-            'ldflags': [
-              '-ftest-coverage',
-              '-fprofile-arcs'
-            ]
-          }
-         ]
+          '<(node_root_dir)/deps/cares/include'
         ]
       }]
     ]
@@ -626,7 +660,6 @@
         'src/core/lib/channel/handshaker_registry.c',
         'src/core/lib/channel/http_client_filter.c',
         'src/core/lib/channel/http_server_filter.c',
-        'src/core/lib/channel/max_age_filter.c',
         'src/core/lib/channel/message_size_filter.c',
         'src/core/lib/compression/compression.c',
         'src/core/lib/compression/message_compress.c',
@@ -791,47 +824,47 @@
         'src/core/tsi/transport_security.c',
         'src/core/ext/transport/chttp2/server/chttp2_server.c',
         'src/core/ext/transport/chttp2/client/secure/secure_channel_create.c',
-        'src/core/ext/client_channel/channel_connectivity.c',
-        'src/core/ext/client_channel/client_channel.c',
-        'src/core/ext/client_channel/client_channel_factory.c',
-        'src/core/ext/client_channel/client_channel_plugin.c',
-        'src/core/ext/client_channel/connector.c',
-        'src/core/ext/client_channel/http_connect_handshaker.c',
-        'src/core/ext/client_channel/http_proxy.c',
-        'src/core/ext/client_channel/lb_policy.c',
-        'src/core/ext/client_channel/lb_policy_factory.c',
-        'src/core/ext/client_channel/lb_policy_registry.c',
-        'src/core/ext/client_channel/parse_address.c',
-        'src/core/ext/client_channel/proxy_mapper.c',
-        'src/core/ext/client_channel/proxy_mapper_registry.c',
-        'src/core/ext/client_channel/resolver.c',
-        'src/core/ext/client_channel/resolver_factory.c',
-        'src/core/ext/client_channel/resolver_registry.c',
-        'src/core/ext/client_channel/retry_throttle.c',
-        'src/core/ext/client_channel/subchannel.c',
-        'src/core/ext/client_channel/subchannel_index.c',
-        'src/core/ext/client_channel/uri_parser.c',
+        'src/core/ext/filters/client_channel/channel_connectivity.c',
+        'src/core/ext/filters/client_channel/client_channel.c',
+        'src/core/ext/filters/client_channel/client_channel_factory.c',
+        'src/core/ext/filters/client_channel/client_channel_plugin.c',
+        'src/core/ext/filters/client_channel/connector.c',
+        'src/core/ext/filters/client_channel/http_connect_handshaker.c',
+        'src/core/ext/filters/client_channel/http_proxy.c',
+        'src/core/ext/filters/client_channel/lb_policy.c',
+        'src/core/ext/filters/client_channel/lb_policy_factory.c',
+        'src/core/ext/filters/client_channel/lb_policy_registry.c',
+        'src/core/ext/filters/client_channel/parse_address.c',
+        'src/core/ext/filters/client_channel/proxy_mapper.c',
+        'src/core/ext/filters/client_channel/proxy_mapper_registry.c',
+        'src/core/ext/filters/client_channel/resolver.c',
+        'src/core/ext/filters/client_channel/resolver_factory.c',
+        'src/core/ext/filters/client_channel/resolver_registry.c',
+        'src/core/ext/filters/client_channel/retry_throttle.c',
+        'src/core/ext/filters/client_channel/subchannel.c',
+        'src/core/ext/filters/client_channel/subchannel_index.c',
+        'src/core/ext/filters/client_channel/uri_parser.c',
         'src/core/ext/transport/chttp2/client/chttp2_connector.c',
         'src/core/ext/transport/chttp2/server/insecure/server_chttp2.c',
         'src/core/ext/transport/chttp2/server/insecure/server_chttp2_posix.c',
         'src/core/ext/transport/chttp2/client/insecure/channel_create.c',
         'src/core/ext/transport/chttp2/client/insecure/channel_create_posix.c',
-        'src/core/ext/lb_policy/grpclb/grpclb.c',
-        'src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c',
-        'src/core/ext/lb_policy/grpclb/load_balancer_api.c',
-        'src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c',
+        'src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c',
+        'src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c',
+        'src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c',
+        'src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c',
         'third_party/nanopb/pb_common.c',
         'third_party/nanopb/pb_decode.c',
         'third_party/nanopb/pb_encode.c',
-        'src/core/ext/lb_policy/pick_first/pick_first.c',
-        'src/core/ext/lb_policy/round_robin/round_robin.c',
-        'src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c',
-        'src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c',
-        'src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c',
-        'src/core/ext/resolver/dns/native/dns_resolver.c',
-        'src/core/ext/resolver/sockaddr/sockaddr_resolver.c',
-        'src/core/ext/load_reporting/load_reporting.c',
-        'src/core/ext/load_reporting/load_reporting_filter.c',
+        'src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c',
+        'src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c',
+        'src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c',
+        'src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c',
+        'src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c',
+        'src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c',
+        'src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c',
+        'src/core/ext/filters/load_reporting/load_reporting.c',
+        'src/core/ext/filters/load_reporting/load_reporting_filter.c',
         'src/core/ext/census/base_resources.c',
         'src/core/ext/census/context.c',
         'src/core/ext/census/gen/census.pb.c',
@@ -846,6 +879,7 @@
         'src/core/ext/census/resource.c',
         'src/core/ext/census/trace_context.c',
         'src/core/ext/census/tracing.c',
+        'src/core/ext/filters/max_age/max_age_filter.c',
         'src/core/plugin_registry/grpc_plugin_registry.c',
       ],
       "conditions": [
@@ -862,16 +896,10 @@
       ],
       'cflags': [
         '-std=c++11',
-        '-Wall',
         '-pthread',
-        '-g',
         '-zdefs',
-        '-Werror',
         '-Wno-error=deprecated-declarations'
       ],
-      'ldflags': [
-        '-g'
-      ],
       "conditions": [
         ['OS=="win" or runtime=="electron"', {
           'dependencies': [
diff --git a/build.yaml b/build.yaml
index 8aff168..c294fc9 100644
--- a/build.yaml
+++ b/build.yaml
@@ -185,7 +185,6 @@
   - src/core/lib/channel/handshaker_registry.h
   - src/core/lib/channel/http_client_filter.h
   - src/core/lib/channel/http_server_filter.h
-  - src/core/lib/channel/max_age_filter.h
   - src/core/lib/channel/message_size_filter.h
   - src/core/lib/compression/algorithm_metadata.h
   - src/core/lib/compression/message_compress.h
@@ -296,7 +295,6 @@
   - src/core/lib/channel/handshaker_registry.c
   - src/core/lib/channel/http_client_filter.c
   - src/core/lib/channel/http_server_filter.c
-  - src/core/lib/channel/max_age_filter.c
   - src/core/lib/channel/message_size_filter.c
   - src/core/lib/compression/compression.c
   - src/core/lib/compression/message_compress.c
@@ -416,45 +414,45 @@
   - grpc_codegen
 - name: grpc_client_channel
   headers:
-  - src/core/ext/client_channel/client_channel.h
-  - src/core/ext/client_channel/client_channel_factory.h
-  - src/core/ext/client_channel/connector.h
-  - src/core/ext/client_channel/http_connect_handshaker.h
-  - src/core/ext/client_channel/http_proxy.h
-  - src/core/ext/client_channel/lb_policy.h
-  - src/core/ext/client_channel/lb_policy_factory.h
-  - src/core/ext/client_channel/lb_policy_registry.h
-  - src/core/ext/client_channel/parse_address.h
-  - src/core/ext/client_channel/proxy_mapper.h
-  - src/core/ext/client_channel/proxy_mapper_registry.h
-  - src/core/ext/client_channel/resolver.h
-  - src/core/ext/client_channel/resolver_factory.h
-  - src/core/ext/client_channel/resolver_registry.h
-  - src/core/ext/client_channel/retry_throttle.h
-  - src/core/ext/client_channel/subchannel.h
-  - src/core/ext/client_channel/subchannel_index.h
-  - src/core/ext/client_channel/uri_parser.h
+  - src/core/ext/filters/client_channel/client_channel.h
+  - src/core/ext/filters/client_channel/client_channel_factory.h
+  - src/core/ext/filters/client_channel/connector.h
+  - src/core/ext/filters/client_channel/http_connect_handshaker.h
+  - src/core/ext/filters/client_channel/http_proxy.h
+  - src/core/ext/filters/client_channel/lb_policy.h
+  - src/core/ext/filters/client_channel/lb_policy_factory.h
+  - src/core/ext/filters/client_channel/lb_policy_registry.h
+  - src/core/ext/filters/client_channel/parse_address.h
+  - src/core/ext/filters/client_channel/proxy_mapper.h
+  - src/core/ext/filters/client_channel/proxy_mapper_registry.h
+  - src/core/ext/filters/client_channel/resolver.h
+  - src/core/ext/filters/client_channel/resolver_factory.h
+  - src/core/ext/filters/client_channel/resolver_registry.h
+  - src/core/ext/filters/client_channel/retry_throttle.h
+  - src/core/ext/filters/client_channel/subchannel.h
+  - src/core/ext/filters/client_channel/subchannel_index.h
+  - src/core/ext/filters/client_channel/uri_parser.h
   src:
-  - src/core/ext/client_channel/channel_connectivity.c
-  - src/core/ext/client_channel/client_channel.c
-  - src/core/ext/client_channel/client_channel_factory.c
-  - src/core/ext/client_channel/client_channel_plugin.c
-  - src/core/ext/client_channel/connector.c
-  - src/core/ext/client_channel/http_connect_handshaker.c
-  - src/core/ext/client_channel/http_proxy.c
-  - src/core/ext/client_channel/lb_policy.c
-  - src/core/ext/client_channel/lb_policy_factory.c
-  - src/core/ext/client_channel/lb_policy_registry.c
-  - src/core/ext/client_channel/parse_address.c
-  - src/core/ext/client_channel/proxy_mapper.c
-  - src/core/ext/client_channel/proxy_mapper_registry.c
-  - src/core/ext/client_channel/resolver.c
-  - src/core/ext/client_channel/resolver_factory.c
-  - src/core/ext/client_channel/resolver_registry.c
-  - src/core/ext/client_channel/retry_throttle.c
-  - src/core/ext/client_channel/subchannel.c
-  - src/core/ext/client_channel/subchannel_index.c
-  - src/core/ext/client_channel/uri_parser.c
+  - src/core/ext/filters/client_channel/channel_connectivity.c
+  - src/core/ext/filters/client_channel/client_channel.c
+  - src/core/ext/filters/client_channel/client_channel_factory.c
+  - src/core/ext/filters/client_channel/client_channel_plugin.c
+  - src/core/ext/filters/client_channel/connector.c
+  - src/core/ext/filters/client_channel/http_connect_handshaker.c
+  - src/core/ext/filters/client_channel/http_proxy.c
+  - src/core/ext/filters/client_channel/lb_policy.c
+  - src/core/ext/filters/client_channel/lb_policy_factory.c
+  - src/core/ext/filters/client_channel/lb_policy_registry.c
+  - src/core/ext/filters/client_channel/parse_address.c
+  - src/core/ext/filters/client_channel/proxy_mapper.c
+  - src/core/ext/filters/client_channel/proxy_mapper_registry.c
+  - src/core/ext/filters/client_channel/resolver.c
+  - src/core/ext/filters/client_channel/resolver_factory.c
+  - src/core/ext/filters/client_channel/resolver_registry.c
+  - src/core/ext/filters/client_channel/retry_throttle.c
+  - src/core/ext/filters/client_channel/subchannel.c
+  - src/core/ext/filters/client_channel/subchannel_index.c
+  - src/core/ext/filters/client_channel/uri_parser.c
   plugin: grpc_client_channel
   uses:
   - grpc_base
@@ -472,15 +470,15 @@
   - gpr_codegen
 - name: grpc_lb_policy_grpclb
   headers:
-  - src/core/ext/lb_policy/grpclb/grpclb.h
-  - src/core/ext/lb_policy/grpclb/grpclb_channel.h
-  - src/core/ext/lb_policy/grpclb/load_balancer_api.h
-  - src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h
   src:
-  - src/core/ext/lb_policy/grpclb/grpclb.c
-  - src/core/ext/lb_policy/grpclb/grpclb_channel.c
-  - src/core/ext/lb_policy/grpclb/load_balancer_api.c
-  - src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.c
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c
   plugin: grpc_lb_policy_grpclb
   uses:
   - grpc_base
@@ -488,15 +486,15 @@
   - nanopb
 - name: grpc_lb_policy_grpclb_secure
   headers:
-  - src/core/ext/lb_policy/grpclb/grpclb.h
-  - src/core/ext/lb_policy/grpclb/grpclb_channel.h
-  - src/core/ext/lb_policy/grpclb/load_balancer_api.h
-  - src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h
   src:
-  - src/core/ext/lb_policy/grpclb/grpclb.c
-  - src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c
-  - src/core/ext/lb_policy/grpclb/load_balancer_api.c
-  - src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c
+  - src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c
   plugin: grpc_lb_policy_grpclb
   uses:
   - grpc_base
@@ -505,50 +503,58 @@
   - nanopb
 - name: grpc_lb_policy_pick_first
   src:
-  - src/core/ext/lb_policy/pick_first/pick_first.c
+  - src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c
   plugin: grpc_lb_policy_pick_first
   uses:
   - grpc_base
   - grpc_client_channel
 - name: grpc_lb_policy_round_robin
   src:
-  - src/core/ext/lb_policy/round_robin/round_robin.c
+  - src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c
   plugin: grpc_lb_policy_round_robin
   uses:
   - grpc_base
   - grpc_client_channel
 - name: grpc_load_reporting
   headers:
-  - src/core/ext/load_reporting/load_reporting.h
-  - src/core/ext/load_reporting/load_reporting_filter.h
+  - src/core/ext/filters/load_reporting/load_reporting.h
+  - src/core/ext/filters/load_reporting/load_reporting_filter.h
   src:
-  - src/core/ext/load_reporting/load_reporting.c
-  - src/core/ext/load_reporting/load_reporting_filter.c
+  - src/core/ext/filters/load_reporting/load_reporting.c
+  - src/core/ext/filters/load_reporting/load_reporting_filter.c
   plugin: grpc_load_reporting_plugin
   uses:
   - grpc_base
+- name: grpc_max_age_filter
+  headers:
+  - src/core/ext/filters/max_age/max_age_filter.h
+  src:
+  - src/core/ext/filters/max_age/max_age_filter.c
+  plugin: grpc_max_age_filter
+  uses:
+  - grpc_base
 - name: grpc_resolver_dns_ares
   headers:
-  - src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h
-  - src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h
+  - src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h
+  - src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h
   src:
-  - src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c
-  - src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c
-  - src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c
+  - src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c
+  - src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c
+  - src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c
   plugin: grpc_resolver_dns_ares
   uses:
   - grpc_base
   - grpc_client_channel
 - name: grpc_resolver_dns_native
   src:
-  - src/core/ext/resolver/dns/native/dns_resolver.c
+  - src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c
   plugin: grpc_resolver_dns_native
   uses:
   - grpc_base
   - grpc_client_channel
 - name: grpc_resolver_sockaddr
   src:
-  - src/core/ext/resolver/sockaddr/sockaddr_resolver.c
+  - src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c
   plugin: grpc_resolver_sockaddr
   uses:
   - grpc_base
@@ -990,6 +996,7 @@
   - grpc_load_reporting
   - grpc_secure
   - census
+  - grpc_max_age_filter
   generate_plugin_registry: true
   secure: true
   vs_packages:
@@ -1086,6 +1093,7 @@
   - grpc_lb_policy_pick_first
   - grpc_lb_policy_round_robin
   - census
+  - grpc_max_age_filter
   generate_plugin_registry: true
   secure: false
   vs_project_guid: '{46CEDFFF-9692-456A-AA24-38B5D6BCF4C5}'
@@ -1299,11 +1307,15 @@
   - src/compiler/objective_c_generator_helpers.h
   - src/compiler/php_generator.h
   - src/compiler/php_generator_helpers.h
+  - src/compiler/protobuf_plugin.h
   - src/compiler/python_generator.h
+  - src/compiler/python_generator_helpers.h
+  - src/compiler/python_private_generator.h
   - src/compiler/ruby_generator.h
   - src/compiler/ruby_generator_helpers-inl.h
   - src/compiler/ruby_generator_map-inl.h
   - src/compiler/ruby_generator_string-inl.h
+  - src/compiler/schema_interface.h
   src:
   - src/compiler/cpp_generator.cc
   - src/compiler/csharp_generator.cc
diff --git a/config.m4 b/config.m4
index 6e6a65a..2846781 100644
--- a/config.m4
+++ b/config.m4
@@ -94,7 +94,6 @@
     src/core/lib/channel/handshaker_registry.c \
     src/core/lib/channel/http_client_filter.c \
     src/core/lib/channel/http_server_filter.c \
-    src/core/lib/channel/max_age_filter.c \
     src/core/lib/channel/message_size_filter.c \
     src/core/lib/compression/compression.c \
     src/core/lib/compression/message_compress.c \
@@ -259,47 +258,47 @@
     src/core/tsi/transport_security.c \
     src/core/ext/transport/chttp2/server/chttp2_server.c \
     src/core/ext/transport/chttp2/client/secure/secure_channel_create.c \
-    src/core/ext/client_channel/channel_connectivity.c \
-    src/core/ext/client_channel/client_channel.c \
-    src/core/ext/client_channel/client_channel_factory.c \
-    src/core/ext/client_channel/client_channel_plugin.c \
-    src/core/ext/client_channel/connector.c \
-    src/core/ext/client_channel/http_connect_handshaker.c \
-    src/core/ext/client_channel/http_proxy.c \
-    src/core/ext/client_channel/lb_policy.c \
-    src/core/ext/client_channel/lb_policy_factory.c \
-    src/core/ext/client_channel/lb_policy_registry.c \
-    src/core/ext/client_channel/parse_address.c \
-    src/core/ext/client_channel/proxy_mapper.c \
-    src/core/ext/client_channel/proxy_mapper_registry.c \
-    src/core/ext/client_channel/resolver.c \
-    src/core/ext/client_channel/resolver_factory.c \
-    src/core/ext/client_channel/resolver_registry.c \
-    src/core/ext/client_channel/retry_throttle.c \
-    src/core/ext/client_channel/subchannel.c \
-    src/core/ext/client_channel/subchannel_index.c \
-    src/core/ext/client_channel/uri_parser.c \
+    src/core/ext/filters/client_channel/channel_connectivity.c \
+    src/core/ext/filters/client_channel/client_channel.c \
+    src/core/ext/filters/client_channel/client_channel_factory.c \
+    src/core/ext/filters/client_channel/client_channel_plugin.c \
+    src/core/ext/filters/client_channel/connector.c \
+    src/core/ext/filters/client_channel/http_connect_handshaker.c \
+    src/core/ext/filters/client_channel/http_proxy.c \
+    src/core/ext/filters/client_channel/lb_policy.c \
+    src/core/ext/filters/client_channel/lb_policy_factory.c \
+    src/core/ext/filters/client_channel/lb_policy_registry.c \
+    src/core/ext/filters/client_channel/parse_address.c \
+    src/core/ext/filters/client_channel/proxy_mapper.c \
+    src/core/ext/filters/client_channel/proxy_mapper_registry.c \
+    src/core/ext/filters/client_channel/resolver.c \
+    src/core/ext/filters/client_channel/resolver_factory.c \
+    src/core/ext/filters/client_channel/resolver_registry.c \
+    src/core/ext/filters/client_channel/retry_throttle.c \
+    src/core/ext/filters/client_channel/subchannel.c \
+    src/core/ext/filters/client_channel/subchannel_index.c \
+    src/core/ext/filters/client_channel/uri_parser.c \
     src/core/ext/transport/chttp2/client/chttp2_connector.c \
     src/core/ext/transport/chttp2/server/insecure/server_chttp2.c \
     src/core/ext/transport/chttp2/server/insecure/server_chttp2_posix.c \
     src/core/ext/transport/chttp2/client/insecure/channel_create.c \
     src/core/ext/transport/chttp2/client/insecure/channel_create_posix.c \
-    src/core/ext/lb_policy/grpclb/grpclb.c \
-    src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c \
-    src/core/ext/lb_policy/grpclb/load_balancer_api.c \
-    src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c \
+    src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c \
+    src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c \
+    src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c \
+    src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c \
     third_party/nanopb/pb_common.c \
     third_party/nanopb/pb_decode.c \
     third_party/nanopb/pb_encode.c \
-    src/core/ext/lb_policy/pick_first/pick_first.c \
-    src/core/ext/lb_policy/round_robin/round_robin.c \
-    src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c \
-    src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c \
-    src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c \
-    src/core/ext/resolver/dns/native/dns_resolver.c \
-    src/core/ext/resolver/sockaddr/sockaddr_resolver.c \
-    src/core/ext/load_reporting/load_reporting.c \
-    src/core/ext/load_reporting/load_reporting_filter.c \
+    src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c \
+    src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c \
+    src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c \
+    src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c \
+    src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c \
+    src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c \
+    src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c \
+    src/core/ext/filters/load_reporting/load_reporting.c \
+    src/core/ext/filters/load_reporting/load_reporting_filter.c \
     src/core/ext/census/base_resources.c \
     src/core/ext/census/context.c \
     src/core/ext/census/gen/census.pb.c \
@@ -314,6 +313,7 @@
     src/core/ext/census/resource.c \
     src/core/ext/census/trace_context.c \
     src/core/ext/census/tracing.c \
+    src/core/ext/filters/max_age/max_age_filter.c \
     src/core/plugin_registry/grpc_plugin_registry.c \
     src/boringssl/err_data.c \
     third_party/boringssl/crypto/aes/aes.c \
@@ -629,15 +629,16 @@
   PHP_ADD_BUILD_DIR($ext_builddir/src/boringssl)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/census)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/census/gen)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/client_channel)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/lb_policy/grpclb)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/lb_policy/pick_first)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/lb_policy/round_robin)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/load_reporting)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/resolver/dns/c_ares)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/resolver/dns/native)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/resolver/sockaddr)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/filters/client_channel)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/filters/client_channel/lb_policy/grpclb)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/filters/client_channel/lb_policy/pick_first)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/filters/client_channel/lb_policy/round_robin)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/filters/client_channel/resolver/dns/c_ares)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/filters/client_channel/resolver/dns/native)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/filters/client_channel/resolver/sockaddr)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/filters/load_reporting)
+  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/filters/max_age)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/transport/chttp2/alpn)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/transport/chttp2/client)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/transport/chttp2/client/insecure)
diff --git a/gRPC-Core.podspec b/gRPC-Core.podspec
index d750a5b..83c19af 100644
--- a/gRPC-Core.podspec
+++ b/gRPC-Core.podspec
@@ -267,7 +267,6 @@
                       'src/core/lib/channel/handshaker_registry.h',
                       'src/core/lib/channel/http_client_filter.h',
                       'src/core/lib/channel/http_server_filter.h',
-                      'src/core/lib/channel/max_age_filter.h',
                       'src/core/lib/channel/message_size_filter.h',
                       'src/core/lib/compression/algorithm_metadata.h',
                       'src/core/lib/compression/message_compress.h',
@@ -410,37 +409,37 @@
                       'src/core/tsi/transport_security.h',
                       'src/core/tsi/transport_security_interface.h',
                       'src/core/ext/transport/chttp2/server/chttp2_server.h',
-                      'src/core/ext/client_channel/client_channel.h',
-                      'src/core/ext/client_channel/client_channel_factory.h',
-                      'src/core/ext/client_channel/connector.h',
-                      'src/core/ext/client_channel/http_connect_handshaker.h',
-                      'src/core/ext/client_channel/http_proxy.h',
-                      'src/core/ext/client_channel/lb_policy.h',
-                      'src/core/ext/client_channel/lb_policy_factory.h',
-                      'src/core/ext/client_channel/lb_policy_registry.h',
-                      'src/core/ext/client_channel/parse_address.h',
-                      'src/core/ext/client_channel/proxy_mapper.h',
-                      'src/core/ext/client_channel/proxy_mapper_registry.h',
-                      'src/core/ext/client_channel/resolver.h',
-                      'src/core/ext/client_channel/resolver_factory.h',
-                      'src/core/ext/client_channel/resolver_registry.h',
-                      'src/core/ext/client_channel/retry_throttle.h',
-                      'src/core/ext/client_channel/subchannel.h',
-                      'src/core/ext/client_channel/subchannel_index.h',
-                      'src/core/ext/client_channel/uri_parser.h',
+                      'src/core/ext/filters/client_channel/client_channel.h',
+                      'src/core/ext/filters/client_channel/client_channel_factory.h',
+                      'src/core/ext/filters/client_channel/connector.h',
+                      'src/core/ext/filters/client_channel/http_connect_handshaker.h',
+                      'src/core/ext/filters/client_channel/http_proxy.h',
+                      'src/core/ext/filters/client_channel/lb_policy.h',
+                      'src/core/ext/filters/client_channel/lb_policy_factory.h',
+                      'src/core/ext/filters/client_channel/lb_policy_registry.h',
+                      'src/core/ext/filters/client_channel/parse_address.h',
+                      'src/core/ext/filters/client_channel/proxy_mapper.h',
+                      'src/core/ext/filters/client_channel/proxy_mapper_registry.h',
+                      'src/core/ext/filters/client_channel/resolver.h',
+                      'src/core/ext/filters/client_channel/resolver_factory.h',
+                      'src/core/ext/filters/client_channel/resolver_registry.h',
+                      'src/core/ext/filters/client_channel/retry_throttle.h',
+                      'src/core/ext/filters/client_channel/subchannel.h',
+                      'src/core/ext/filters/client_channel/subchannel_index.h',
+                      'src/core/ext/filters/client_channel/uri_parser.h',
                       'src/core/ext/transport/chttp2/client/chttp2_connector.h',
-                      'src/core/ext/lb_policy/grpclb/grpclb.h',
-                      'src/core/ext/lb_policy/grpclb/grpclb_channel.h',
-                      'src/core/ext/lb_policy/grpclb/load_balancer_api.h',
-                      'src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h',
+                      'src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h',
+                      'src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h',
+                      'src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h',
+                      'src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.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/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h',
-                      'src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h',
-                      'src/core/ext/load_reporting/load_reporting.h',
-                      'src/core/ext/load_reporting/load_reporting_filter.h',
+                      'src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h',
+                      'src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h',
+                      'src/core/ext/filters/load_reporting/load_reporting.h',
+                      'src/core/ext/filters/load_reporting/load_reporting_filter.h',
                       'src/core/ext/census/aggregation.h',
                       'src/core/ext/census/base_resources.h',
                       'src/core/ext/census/census_interface.h',
@@ -457,6 +456,7 @@
                       'src/core/ext/census/trace_status.h',
                       'src/core/ext/census/trace_string.h',
                       'src/core/ext/census/tracing.h',
+                      'src/core/ext/filters/max_age/max_age_filter.h',
                       'src/core/lib/surface/init.c',
                       'src/core/lib/channel/channel_args.c',
                       'src/core/lib/channel/channel_stack.c',
@@ -469,7 +469,6 @@
                       'src/core/lib/channel/handshaker_registry.c',
                       'src/core/lib/channel/http_client_filter.c',
                       'src/core/lib/channel/http_server_filter.c',
-                      'src/core/lib/channel/max_age_filter.c',
                       'src/core/lib/channel/message_size_filter.c',
                       'src/core/lib/compression/compression.c',
                       'src/core/lib/compression/message_compress.c',
@@ -634,47 +633,47 @@
                       'src/core/tsi/transport_security.c',
                       'src/core/ext/transport/chttp2/server/chttp2_server.c',
                       'src/core/ext/transport/chttp2/client/secure/secure_channel_create.c',
-                      'src/core/ext/client_channel/channel_connectivity.c',
-                      'src/core/ext/client_channel/client_channel.c',
-                      'src/core/ext/client_channel/client_channel_factory.c',
-                      'src/core/ext/client_channel/client_channel_plugin.c',
-                      'src/core/ext/client_channel/connector.c',
-                      'src/core/ext/client_channel/http_connect_handshaker.c',
-                      'src/core/ext/client_channel/http_proxy.c',
-                      'src/core/ext/client_channel/lb_policy.c',
-                      'src/core/ext/client_channel/lb_policy_factory.c',
-                      'src/core/ext/client_channel/lb_policy_registry.c',
-                      'src/core/ext/client_channel/parse_address.c',
-                      'src/core/ext/client_channel/proxy_mapper.c',
-                      'src/core/ext/client_channel/proxy_mapper_registry.c',
-                      'src/core/ext/client_channel/resolver.c',
-                      'src/core/ext/client_channel/resolver_factory.c',
-                      'src/core/ext/client_channel/resolver_registry.c',
-                      'src/core/ext/client_channel/retry_throttle.c',
-                      'src/core/ext/client_channel/subchannel.c',
-                      'src/core/ext/client_channel/subchannel_index.c',
-                      'src/core/ext/client_channel/uri_parser.c',
+                      'src/core/ext/filters/client_channel/channel_connectivity.c',
+                      'src/core/ext/filters/client_channel/client_channel.c',
+                      'src/core/ext/filters/client_channel/client_channel_factory.c',
+                      'src/core/ext/filters/client_channel/client_channel_plugin.c',
+                      'src/core/ext/filters/client_channel/connector.c',
+                      'src/core/ext/filters/client_channel/http_connect_handshaker.c',
+                      'src/core/ext/filters/client_channel/http_proxy.c',
+                      'src/core/ext/filters/client_channel/lb_policy.c',
+                      'src/core/ext/filters/client_channel/lb_policy_factory.c',
+                      'src/core/ext/filters/client_channel/lb_policy_registry.c',
+                      'src/core/ext/filters/client_channel/parse_address.c',
+                      'src/core/ext/filters/client_channel/proxy_mapper.c',
+                      'src/core/ext/filters/client_channel/proxy_mapper_registry.c',
+                      'src/core/ext/filters/client_channel/resolver.c',
+                      'src/core/ext/filters/client_channel/resolver_factory.c',
+                      'src/core/ext/filters/client_channel/resolver_registry.c',
+                      'src/core/ext/filters/client_channel/retry_throttle.c',
+                      'src/core/ext/filters/client_channel/subchannel.c',
+                      'src/core/ext/filters/client_channel/subchannel_index.c',
+                      'src/core/ext/filters/client_channel/uri_parser.c',
                       'src/core/ext/transport/chttp2/client/chttp2_connector.c',
                       'src/core/ext/transport/chttp2/server/insecure/server_chttp2.c',
                       'src/core/ext/transport/chttp2/server/insecure/server_chttp2_posix.c',
                       'src/core/ext/transport/chttp2/client/insecure/channel_create.c',
                       'src/core/ext/transport/chttp2/client/insecure/channel_create_posix.c',
-                      'src/core/ext/lb_policy/grpclb/grpclb.c',
-                      'src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c',
-                      'src/core/ext/lb_policy/grpclb/load_balancer_api.c',
-                      'src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c',
+                      'src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c',
+                      'src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c',
+                      'src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c',
+                      'src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c',
                       'third_party/nanopb/pb_common.c',
                       'third_party/nanopb/pb_decode.c',
                       'third_party/nanopb/pb_encode.c',
-                      'src/core/ext/lb_policy/pick_first/pick_first.c',
-                      'src/core/ext/lb_policy/round_robin/round_robin.c',
-                      'src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c',
-                      'src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c',
-                      'src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c',
-                      'src/core/ext/resolver/dns/native/dns_resolver.c',
-                      'src/core/ext/resolver/sockaddr/sockaddr_resolver.c',
-                      'src/core/ext/load_reporting/load_reporting.c',
-                      'src/core/ext/load_reporting/load_reporting_filter.c',
+                      'src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c',
+                      'src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c',
+                      'src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c',
+                      'src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c',
+                      'src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c',
+                      'src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c',
+                      'src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c',
+                      'src/core/ext/filters/load_reporting/load_reporting.c',
+                      'src/core/ext/filters/load_reporting/load_reporting_filter.c',
                       'src/core/ext/census/base_resources.c',
                       'src/core/ext/census/context.c',
                       'src/core/ext/census/gen/census.pb.c',
@@ -689,6 +688,7 @@
                       'src/core/ext/census/resource.c',
                       'src/core/ext/census/trace_context.c',
                       'src/core/ext/census/tracing.c',
+                      'src/core/ext/filters/max_age/max_age_filter.c',
                       'src/core/plugin_registry/grpc_plugin_registry.c'
 
     ss.private_header_files = 'src/core/lib/profiling/timers.h',
@@ -717,7 +717,6 @@
                               'src/core/lib/channel/handshaker_registry.h',
                               'src/core/lib/channel/http_client_filter.h',
                               'src/core/lib/channel/http_server_filter.h',
-                              'src/core/lib/channel/max_age_filter.h',
                               'src/core/lib/channel/message_size_filter.h',
                               'src/core/lib/compression/algorithm_metadata.h',
                               'src/core/lib/compression/message_compress.h',
@@ -860,37 +859,37 @@
                               'src/core/tsi/transport_security.h',
                               'src/core/tsi/transport_security_interface.h',
                               'src/core/ext/transport/chttp2/server/chttp2_server.h',
-                              'src/core/ext/client_channel/client_channel.h',
-                              'src/core/ext/client_channel/client_channel_factory.h',
-                              'src/core/ext/client_channel/connector.h',
-                              'src/core/ext/client_channel/http_connect_handshaker.h',
-                              'src/core/ext/client_channel/http_proxy.h',
-                              'src/core/ext/client_channel/lb_policy.h',
-                              'src/core/ext/client_channel/lb_policy_factory.h',
-                              'src/core/ext/client_channel/lb_policy_registry.h',
-                              'src/core/ext/client_channel/parse_address.h',
-                              'src/core/ext/client_channel/proxy_mapper.h',
-                              'src/core/ext/client_channel/proxy_mapper_registry.h',
-                              'src/core/ext/client_channel/resolver.h',
-                              'src/core/ext/client_channel/resolver_factory.h',
-                              'src/core/ext/client_channel/resolver_registry.h',
-                              'src/core/ext/client_channel/retry_throttle.h',
-                              'src/core/ext/client_channel/subchannel.h',
-                              'src/core/ext/client_channel/subchannel_index.h',
-                              'src/core/ext/client_channel/uri_parser.h',
+                              'src/core/ext/filters/client_channel/client_channel.h',
+                              'src/core/ext/filters/client_channel/client_channel_factory.h',
+                              'src/core/ext/filters/client_channel/connector.h',
+                              'src/core/ext/filters/client_channel/http_connect_handshaker.h',
+                              'src/core/ext/filters/client_channel/http_proxy.h',
+                              'src/core/ext/filters/client_channel/lb_policy.h',
+                              'src/core/ext/filters/client_channel/lb_policy_factory.h',
+                              'src/core/ext/filters/client_channel/lb_policy_registry.h',
+                              'src/core/ext/filters/client_channel/parse_address.h',
+                              'src/core/ext/filters/client_channel/proxy_mapper.h',
+                              'src/core/ext/filters/client_channel/proxy_mapper_registry.h',
+                              'src/core/ext/filters/client_channel/resolver.h',
+                              'src/core/ext/filters/client_channel/resolver_factory.h',
+                              'src/core/ext/filters/client_channel/resolver_registry.h',
+                              'src/core/ext/filters/client_channel/retry_throttle.h',
+                              'src/core/ext/filters/client_channel/subchannel.h',
+                              'src/core/ext/filters/client_channel/subchannel_index.h',
+                              'src/core/ext/filters/client_channel/uri_parser.h',
                               'src/core/ext/transport/chttp2/client/chttp2_connector.h',
-                              'src/core/ext/lb_policy/grpclb/grpclb.h',
-                              'src/core/ext/lb_policy/grpclb/grpclb_channel.h',
-                              'src/core/ext/lb_policy/grpclb/load_balancer_api.h',
-                              'src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h',
+                              'src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h',
+                              'src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h',
+                              'src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h',
+                              'src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.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/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h',
-                              'src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h',
-                              'src/core/ext/load_reporting/load_reporting.h',
-                              'src/core/ext/load_reporting/load_reporting_filter.h',
+                              'src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h',
+                              'src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h',
+                              'src/core/ext/filters/load_reporting/load_reporting.h',
+                              'src/core/ext/filters/load_reporting/load_reporting_filter.h',
                               'src/core/ext/census/aggregation.h',
                               'src/core/ext/census/base_resources.h',
                               'src/core/ext/census/census_interface.h',
@@ -906,7 +905,8 @@
                               'src/core/ext/census/trace_propagation.h',
                               'src/core/ext/census/trace_status.h',
                               'src/core/ext/census/trace_string.h',
-                              'src/core/ext/census/tracing.h'
+                              'src/core/ext/census/tracing.h',
+                              'src/core/ext/filters/max_age/max_age_filter.h'
   end
 
   s.subspec 'Cronet-Interface' do |ss|
diff --git a/grpc.gemspec b/grpc.gemspec
index 42d4298..a3a5870 100755
--- a/grpc.gemspec
+++ b/grpc.gemspec
@@ -183,7 +183,6 @@
   s.files += %w( src/core/lib/channel/handshaker_registry.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/max_age_filter.h )
   s.files += %w( src/core/lib/channel/message_size_filter.h )
   s.files += %w( src/core/lib/compression/algorithm_metadata.h )
   s.files += %w( src/core/lib/compression/message_compress.h )
@@ -326,37 +325,37 @@
   s.files += %w( src/core/tsi/transport_security.h )
   s.files += %w( src/core/tsi/transport_security_interface.h )
   s.files += %w( src/core/ext/transport/chttp2/server/chttp2_server.h )
-  s.files += %w( src/core/ext/client_channel/client_channel.h )
-  s.files += %w( src/core/ext/client_channel/client_channel_factory.h )
-  s.files += %w( src/core/ext/client_channel/connector.h )
-  s.files += %w( src/core/ext/client_channel/http_connect_handshaker.h )
-  s.files += %w( src/core/ext/client_channel/http_proxy.h )
-  s.files += %w( src/core/ext/client_channel/lb_policy.h )
-  s.files += %w( src/core/ext/client_channel/lb_policy_factory.h )
-  s.files += %w( src/core/ext/client_channel/lb_policy_registry.h )
-  s.files += %w( src/core/ext/client_channel/parse_address.h )
-  s.files += %w( src/core/ext/client_channel/proxy_mapper.h )
-  s.files += %w( src/core/ext/client_channel/proxy_mapper_registry.h )
-  s.files += %w( src/core/ext/client_channel/resolver.h )
-  s.files += %w( src/core/ext/client_channel/resolver_factory.h )
-  s.files += %w( src/core/ext/client_channel/resolver_registry.h )
-  s.files += %w( src/core/ext/client_channel/retry_throttle.h )
-  s.files += %w( src/core/ext/client_channel/subchannel.h )
-  s.files += %w( src/core/ext/client_channel/subchannel_index.h )
-  s.files += %w( src/core/ext/client_channel/uri_parser.h )
+  s.files += %w( src/core/ext/filters/client_channel/client_channel.h )
+  s.files += %w( src/core/ext/filters/client_channel/client_channel_factory.h )
+  s.files += %w( src/core/ext/filters/client_channel/connector.h )
+  s.files += %w( src/core/ext/filters/client_channel/http_connect_handshaker.h )
+  s.files += %w( src/core/ext/filters/client_channel/http_proxy.h )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy.h )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy_factory.h )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy_registry.h )
+  s.files += %w( src/core/ext/filters/client_channel/parse_address.h )
+  s.files += %w( src/core/ext/filters/client_channel/proxy_mapper.h )
+  s.files += %w( src/core/ext/filters/client_channel/proxy_mapper_registry.h )
+  s.files += %w( src/core/ext/filters/client_channel/resolver.h )
+  s.files += %w( src/core/ext/filters/client_channel/resolver_factory.h )
+  s.files += %w( src/core/ext/filters/client_channel/resolver_registry.h )
+  s.files += %w( src/core/ext/filters/client_channel/retry_throttle.h )
+  s.files += %w( src/core/ext/filters/client_channel/subchannel.h )
+  s.files += %w( src/core/ext/filters/client_channel/subchannel_index.h )
+  s.files += %w( src/core/ext/filters/client_channel/uri_parser.h )
   s.files += %w( src/core/ext/transport/chttp2/client/chttp2_connector.h )
-  s.files += %w( src/core/ext/lb_policy/grpclb/grpclb.h )
-  s.files += %w( src/core/ext/lb_policy/grpclb/grpclb_channel.h )
-  s.files += %w( src/core/ext/lb_policy/grpclb/load_balancer_api.h )
-  s.files += %w( src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.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/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h )
-  s.files += %w( src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h )
-  s.files += %w( src/core/ext/load_reporting/load_reporting.h )
-  s.files += %w( src/core/ext/load_reporting/load_reporting_filter.h )
+  s.files += %w( src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h )
+  s.files += %w( src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h )
+  s.files += %w( src/core/ext/filters/load_reporting/load_reporting.h )
+  s.files += %w( src/core/ext/filters/load_reporting/load_reporting_filter.h )
   s.files += %w( src/core/ext/census/aggregation.h )
   s.files += %w( src/core/ext/census/base_resources.h )
   s.files += %w( src/core/ext/census/census_interface.h )
@@ -373,6 +372,7 @@
   s.files += %w( src/core/ext/census/trace_status.h )
   s.files += %w( src/core/ext/census/trace_string.h )
   s.files += %w( src/core/ext/census/tracing.h )
+  s.files += %w( src/core/ext/filters/max_age/max_age_filter.h )
   s.files += %w( src/core/lib/surface/init.c )
   s.files += %w( src/core/lib/channel/channel_args.c )
   s.files += %w( src/core/lib/channel/channel_stack.c )
@@ -385,7 +385,6 @@
   s.files += %w( src/core/lib/channel/handshaker_registry.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/max_age_filter.c )
   s.files += %w( src/core/lib/channel/message_size_filter.c )
   s.files += %w( src/core/lib/compression/compression.c )
   s.files += %w( src/core/lib/compression/message_compress.c )
@@ -550,47 +549,47 @@
   s.files += %w( src/core/tsi/transport_security.c )
   s.files += %w( src/core/ext/transport/chttp2/server/chttp2_server.c )
   s.files += %w( src/core/ext/transport/chttp2/client/secure/secure_channel_create.c )
-  s.files += %w( src/core/ext/client_channel/channel_connectivity.c )
-  s.files += %w( src/core/ext/client_channel/client_channel.c )
-  s.files += %w( src/core/ext/client_channel/client_channel_factory.c )
-  s.files += %w( src/core/ext/client_channel/client_channel_plugin.c )
-  s.files += %w( src/core/ext/client_channel/connector.c )
-  s.files += %w( src/core/ext/client_channel/http_connect_handshaker.c )
-  s.files += %w( src/core/ext/client_channel/http_proxy.c )
-  s.files += %w( src/core/ext/client_channel/lb_policy.c )
-  s.files += %w( src/core/ext/client_channel/lb_policy_factory.c )
-  s.files += %w( src/core/ext/client_channel/lb_policy_registry.c )
-  s.files += %w( src/core/ext/client_channel/parse_address.c )
-  s.files += %w( src/core/ext/client_channel/proxy_mapper.c )
-  s.files += %w( src/core/ext/client_channel/proxy_mapper_registry.c )
-  s.files += %w( src/core/ext/client_channel/resolver.c )
-  s.files += %w( src/core/ext/client_channel/resolver_factory.c )
-  s.files += %w( src/core/ext/client_channel/resolver_registry.c )
-  s.files += %w( src/core/ext/client_channel/retry_throttle.c )
-  s.files += %w( src/core/ext/client_channel/subchannel.c )
-  s.files += %w( src/core/ext/client_channel/subchannel_index.c )
-  s.files += %w( src/core/ext/client_channel/uri_parser.c )
+  s.files += %w( src/core/ext/filters/client_channel/channel_connectivity.c )
+  s.files += %w( src/core/ext/filters/client_channel/client_channel.c )
+  s.files += %w( src/core/ext/filters/client_channel/client_channel_factory.c )
+  s.files += %w( src/core/ext/filters/client_channel/client_channel_plugin.c )
+  s.files += %w( src/core/ext/filters/client_channel/connector.c )
+  s.files += %w( src/core/ext/filters/client_channel/http_connect_handshaker.c )
+  s.files += %w( src/core/ext/filters/client_channel/http_proxy.c )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy.c )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy_factory.c )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy_registry.c )
+  s.files += %w( src/core/ext/filters/client_channel/parse_address.c )
+  s.files += %w( src/core/ext/filters/client_channel/proxy_mapper.c )
+  s.files += %w( src/core/ext/filters/client_channel/proxy_mapper_registry.c )
+  s.files += %w( src/core/ext/filters/client_channel/resolver.c )
+  s.files += %w( src/core/ext/filters/client_channel/resolver_factory.c )
+  s.files += %w( src/core/ext/filters/client_channel/resolver_registry.c )
+  s.files += %w( src/core/ext/filters/client_channel/retry_throttle.c )
+  s.files += %w( src/core/ext/filters/client_channel/subchannel.c )
+  s.files += %w( src/core/ext/filters/client_channel/subchannel_index.c )
+  s.files += %w( src/core/ext/filters/client_channel/uri_parser.c )
   s.files += %w( src/core/ext/transport/chttp2/client/chttp2_connector.c )
   s.files += %w( src/core/ext/transport/chttp2/server/insecure/server_chttp2.c )
   s.files += %w( src/core/ext/transport/chttp2/server/insecure/server_chttp2_posix.c )
   s.files += %w( src/core/ext/transport/chttp2/client/insecure/channel_create.c )
   s.files += %w( src/core/ext/transport/chttp2/client/insecure/channel_create_posix.c )
-  s.files += %w( src/core/ext/lb_policy/grpclb/grpclb.c )
-  s.files += %w( src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c )
-  s.files += %w( src/core/ext/lb_policy/grpclb/load_balancer_api.c )
-  s.files += %w( src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.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 )
-  s.files += %w( src/core/ext/lb_policy/pick_first/pick_first.c )
-  s.files += %w( src/core/ext/lb_policy/round_robin/round_robin.c )
-  s.files += %w( src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c )
-  s.files += %w( src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c )
-  s.files += %w( src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c )
-  s.files += %w( src/core/ext/resolver/dns/native/dns_resolver.c )
-  s.files += %w( src/core/ext/resolver/sockaddr/sockaddr_resolver.c )
-  s.files += %w( src/core/ext/load_reporting/load_reporting.c )
-  s.files += %w( src/core/ext/load_reporting/load_reporting_filter.c )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c )
+  s.files += %w( src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c )
+  s.files += %w( src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c )
+  s.files += %w( src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c )
+  s.files += %w( src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c )
+  s.files += %w( src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c )
+  s.files += %w( src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c )
+  s.files += %w( src/core/ext/filters/load_reporting/load_reporting.c )
+  s.files += %w( src/core/ext/filters/load_reporting/load_reporting_filter.c )
   s.files += %w( src/core/ext/census/base_resources.c )
   s.files += %w( src/core/ext/census/context.c )
   s.files += %w( src/core/ext/census/gen/census.pb.c )
@@ -605,6 +604,7 @@
   s.files += %w( src/core/ext/census/resource.c )
   s.files += %w( src/core/ext/census/trace_context.c )
   s.files += %w( src/core/ext/census/tracing.c )
+  s.files += %w( src/core/ext/filters/max_age/max_age_filter.c )
   s.files += %w( src/core/plugin_registry/grpc_plugin_registry.c )
   s.files += %w( third_party/boringssl/crypto/aes/internal.h )
   s.files += %w( third_party/boringssl/crypto/asn1/asn1_locl.h )
diff --git a/include/grpc++/impl/codegen/call.h b/include/grpc++/impl/codegen/call.h
index a3f2be6..be6857c 100644
--- a/include/grpc++/impl/codegen/call.h
+++ b/include/grpc++/impl/codegen/call.h
@@ -528,6 +528,7 @@
   void ClientRecvStatus(ClientContext* context, Status* status) {
     metadata_map_ = &context->trailing_metadata_;
     recv_status_ = status;
+    status_details_ = g_core_codegen_interface->grpc_empty_slice();
   }
 
  protected:
diff --git a/include/grpc++/impl/codegen/core_codegen.h b/include/grpc++/impl/codegen/core_codegen.h
index 754bf14..6bf9512 100644
--- a/include/grpc++/impl/codegen/core_codegen.h
+++ b/include/grpc++/impl/codegen/core_codegen.h
@@ -76,6 +76,7 @@
   grpc_byte_buffer* grpc_raw_byte_buffer_create(grpc_slice* slice,
                                                 size_t nslices) override;
 
+  grpc_slice grpc_empty_slice() override;
   grpc_slice grpc_slice_malloc(size_t length) override;
   void grpc_slice_unref(grpc_slice slice) override;
   grpc_slice grpc_slice_split_tail(grpc_slice* s, size_t split) override;
diff --git a/include/grpc++/impl/codegen/core_codegen_interface.h b/include/grpc++/impl/codegen/core_codegen_interface.h
index 45ea040..e111d59 100644
--- a/include/grpc++/impl/codegen/core_codegen_interface.h
+++ b/include/grpc++/impl/codegen/core_codegen_interface.h
@@ -94,6 +94,7 @@
   virtual grpc_byte_buffer* grpc_raw_byte_buffer_create(grpc_slice* slice,
                                                         size_t nslices) = 0;
 
+  virtual grpc_slice grpc_empty_slice() = 0;
   virtual grpc_slice grpc_slice_malloc(size_t length) = 0;
   virtual void grpc_slice_unref(grpc_slice slice) = 0;
   virtual grpc_slice grpc_slice_split_tail(grpc_slice* s, size_t split) = 0;
diff --git a/include/grpc/impl/codegen/grpc_types.h b/include/grpc/impl/codegen/grpc_types.h
index aa4210b..8a8b206 100644
--- a/include/grpc/impl/codegen/grpc_types.h
+++ b/include/grpc/impl/codegen/grpc_types.h
@@ -152,6 +152,9 @@
 #define GRPC_ARG_ENABLE_CENSUS "grpc.census"
 /** If non-zero, enable load reporting. */
 #define GRPC_ARG_ENABLE_LOAD_REPORTING "grpc.loadreporting"
+/** Request that optional features default to off (regardless of what they
+    usually default to) - to enable tight control over what gets enabled */
+#define GRPC_ARG_MINIMAL_STACK "grpc.minimal_stack"
 /** Maximum number of concurrent incoming streams to allow on a http2
     connection. Int valued. */
 #define GRPC_ARG_MAX_CONCURRENT_STREAMS "grpc.max_concurrent_streams"
@@ -202,15 +205,25 @@
      a data frame or header frame) */
 #define GRPC_ARG_HTTP2_MAX_PINGS_WITHOUT_DATA \
   "grpc.http2.max_pings_without_data"
+/** How many misbehaving pings the server can bear before sending goaway and
+    closing the transport?
+    (0 indicates that the server can bear an infinite number of misbehaving
+     pings) */
+#define GRPC_ARG_HTTP2_MAX_PING_STRIKES "grpc.http2.max_ping_strikes"
+/** Minimum allowed time between two pings without sending any data frame. Int
+    valued, seconds */
+#define GRPC_ARG_HTTP2_MIN_PING_INTERVAL_WITHOUT_DATA_MS \
+  "grpc.http2.min_ping_interval_without_data_ms"
 /** How much data are we willing to queue up per stream if
     GRPC_WRITE_BUFFER_HINT is set? This is an upper bound */
 #define GRPC_ARG_HTTP2_WRITE_BUFFER_SIZE "grpc.http2.write_buffer_size"
-/** After a duration of this time the client pings the server to see if the
-    transport is still alive. Int valued, seconds. */
-#define GRPC_ARG_CLIENT_KEEPALIVE_TIME_S "grpc.client_keepalive_time"
-/** After waiting for a duration of this time, if the client does not receive
-    the ping ack, it will close the transport. Int valued, seconds. */
-#define GRPC_ARG_CLIENT_KEEPALIVE_TIMEOUT_S "grpc.client_keepalive_timeout"
+/** After a duration of this time the client/server pings its peer to see if the
+    transport is still alive. Int valued, milliseconds. */
+#define GRPC_ARG_KEEPALIVE_TIME_MS "grpc.keepalive_time_ms"
+/** After waiting for a duration of this time, if the keepalive ping sender does
+    not receive the ping ack, it will close the transport. Int valued,
+    milliseconds. */
+#define GRPC_ARG_KEEPALIVE_TIMEOUT_MS "grpc.keepalive_timeout_ms"
 /** Is it permissible to send keepalive pings without any outstanding streams.
     Int valued, 0(false)/1(true). */
 #define GRPC_ARG_KEEPALIVE_PERMIT_WITHOUT_CALLS \
diff --git a/package.xml b/package.xml
index 382393c..6957ecc 100644
--- a/package.xml
+++ b/package.xml
@@ -192,7 +192,6 @@
     <file baseinstalldir="/" name="src/core/lib/channel/handshaker_registry.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/channel/http_client_filter.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/channel/http_server_filter.h" role="src" />
-    <file baseinstalldir="/" name="src/core/lib/channel/max_age_filter.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/channel/message_size_filter.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/compression/algorithm_metadata.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/compression/message_compress.h" role="src" />
@@ -335,37 +334,37 @@
     <file baseinstalldir="/" name="src/core/tsi/transport_security.h" role="src" />
     <file baseinstalldir="/" name="src/core/tsi/transport_security_interface.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/transport/chttp2/server/chttp2_server.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/client_channel.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/client_channel_factory.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/connector.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/http_connect_handshaker.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/http_proxy.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/lb_policy.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/lb_policy_factory.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/lb_policy_registry.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/parse_address.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/proxy_mapper.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/proxy_mapper_registry.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/resolver.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/resolver_factory.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/resolver_registry.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/retry_throttle.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/subchannel.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/subchannel_index.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/uri_parser.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/client_channel.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/client_channel_factory.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/connector.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/http_connect_handshaker.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/http_proxy.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy_factory.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy_registry.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/parse_address.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/proxy_mapper.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/proxy_mapper_registry.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver_factory.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver_registry.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/retry_throttle.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/subchannel.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/subchannel_index.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/uri_parser.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/transport/chttp2/client/chttp2_connector.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/lb_policy/grpclb/grpclb.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/lb_policy/grpclb/grpclb_channel.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/lb_policy/grpclb/load_balancer_api.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h" role="src" />
     <file baseinstalldir="/" name="third_party/nanopb/pb.h" role="src" />
     <file baseinstalldir="/" name="third_party/nanopb/pb_common.h" role="src" />
     <file baseinstalldir="/" name="third_party/nanopb/pb_decode.h" role="src" />
     <file baseinstalldir="/" name="third_party/nanopb/pb_encode.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/load_reporting/load_reporting.h" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/load_reporting/load_reporting_filter.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/load_reporting/load_reporting.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/load_reporting/load_reporting_filter.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/census/aggregation.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/census/base_resources.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/census/census_interface.h" role="src" />
@@ -382,6 +381,7 @@
     <file baseinstalldir="/" name="src/core/ext/census/trace_status.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/census/trace_string.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/census/tracing.h" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/max_age/max_age_filter.h" role="src" />
     <file baseinstalldir="/" name="src/core/lib/surface/init.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" />
@@ -394,7 +394,6 @@
     <file baseinstalldir="/" name="src/core/lib/channel/handshaker_registry.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/max_age_filter.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/channel/message_size_filter.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/compression/compression.c" role="src" />
     <file baseinstalldir="/" name="src/core/lib/compression/message_compress.c" role="src" />
@@ -559,47 +558,47 @@
     <file baseinstalldir="/" name="src/core/tsi/transport_security.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/transport/chttp2/server/chttp2_server.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/transport/chttp2/client/secure/secure_channel_create.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/channel_connectivity.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/client_channel.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/client_channel_factory.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/client_channel_plugin.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/connector.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/http_connect_handshaker.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/http_proxy.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/lb_policy.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/lb_policy_factory.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/lb_policy_registry.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/parse_address.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/proxy_mapper.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/proxy_mapper_registry.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/resolver.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/resolver_factory.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/resolver_registry.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/retry_throttle.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/subchannel.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/subchannel_index.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/client_channel/uri_parser.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/channel_connectivity.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/client_channel.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/client_channel_factory.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/client_channel_plugin.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/connector.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/http_connect_handshaker.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/http_proxy.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy_factory.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy_registry.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/parse_address.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/proxy_mapper.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/proxy_mapper_registry.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver_factory.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver_registry.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/retry_throttle.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/subchannel.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/subchannel_index.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/uri_parser.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/transport/chttp2/client/chttp2_connector.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/transport/chttp2/server/insecure/server_chttp2.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/transport/chttp2/server/insecure/server_chttp2_posix.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/transport/chttp2/client/insecure/channel_create.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/transport/chttp2/client/insecure/channel_create_posix.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/lb_policy/grpclb/grpclb.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/lb_policy/grpclb/load_balancer_api.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.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" />
-    <file baseinstalldir="/" name="src/core/ext/lb_policy/pick_first/pick_first.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/lb_policy/round_robin/round_robin.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/resolver/dns/native/dns_resolver.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/resolver/sockaddr/sockaddr_resolver.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/load_reporting/load_reporting.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/load_reporting/load_reporting_filter.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/load_reporting/load_reporting.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/load_reporting/load_reporting_filter.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/census/base_resources.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/census/context.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/census/gen/census.pb.c" role="src" />
@@ -614,6 +613,7 @@
     <file baseinstalldir="/" name="src/core/ext/census/resource.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/census/trace_context.c" role="src" />
     <file baseinstalldir="/" name="src/core/ext/census/tracing.c" role="src" />
+    <file baseinstalldir="/" name="src/core/ext/filters/max_age/max_age_filter.c" role="src" />
     <file baseinstalldir="/" name="src/core/plugin_registry/grpc_plugin_registry.c" role="src" />
     <file baseinstalldir="/" name="third_party/boringssl/crypto/aes/internal.h" role="src" />
     <file baseinstalldir="/" name="third_party/boringssl/crypto/asn1/asn1_locl.h" role="src" />
diff --git a/src/compiler/cpp_generator.cc b/src/compiler/cpp_generator.cc
index 2908b63..c01e830 100644
--- a/src/compiler/cpp_generator.cc
+++ b/src/compiler/cpp_generator.cc
@@ -40,6 +40,9 @@
 namespace grpc_cpp_generator {
 namespace {
 
+grpc::string message_header_ext() { return ".pb.h"; }
+grpc::string service_header_ext() { return ".grpc.pb.h"; }
+
 template <class T>
 grpc::string as_string(T x) {
   std::ostringstream out;
@@ -47,6 +50,14 @@
   return out.str();
 }
 
+inline bool ClientOnlyStreaming(const grpc_generator::Method *method) {
+  return method->ClientStreaming() && !method->ServerStreaming();
+}
+
+inline bool ServerOnlyStreaming(const grpc_generator::Method *method) {
+  return !method->ClientStreaming() && method->ServerStreaming();
+}
+
 grpc::string FilenameIdentifier(const grpc::string &filename) {
   grpc::string result;
   for (unsigned i = 0; i < filename.size(); i++) {
@@ -69,7 +80,8 @@
   return array + N;
 }
 
-void PrintIncludes(Printer *printer, const std::vector<grpc::string> &headers,
+void PrintIncludes(grpc_generator::Printer *printer,
+                   const std::vector<grpc::string> &headers,
                    const Parameters &params) {
   std::map<grpc::string, grpc::string> vars;
 
@@ -90,7 +102,8 @@
   }
 }
 
-grpc::string GetHeaderPrologue(File *file, const Parameters & /*params*/) {
+grpc::string GetHeaderPrologue(grpc_generator::File *file,
+                               const Parameters & /*params*/) {
   grpc::string output;
   {
     // Scope the output stream so it closes and finalizes output to the string.
@@ -100,13 +113,13 @@
     vars["filename"] = file->filename();
     vars["filename_identifier"] = FilenameIdentifier(file->filename());
     vars["filename_base"] = file->filename_without_ext();
-    vars["message_header_ext"] = file->message_header_ext();
+    vars["message_header_ext"] = message_header_ext();
 
     printer->Print(vars, "// Generated by the gRPC C++ plugin.\n");
     printer->Print(vars,
                    "// If you make any local change, they will be lost.\n");
     printer->Print(vars, "// source: $filename$\n");
-    grpc::string leading_comments = file->GetLeadingComments();
+    grpc::string leading_comments = file->GetLeadingComments("//");
     if (!leading_comments.empty()) {
       printer->Print(vars, "// Original file comments:\n");
       printer->Print(leading_comments.c_str());
@@ -120,7 +133,8 @@
   return output;
 }
 
-grpc::string GetHeaderIncludes(File *file, const Parameters &params) {
+grpc::string GetHeaderIncludes(grpc_generator::File *file,
+                               const Parameters &params) {
   grpc::string output;
   {
     // Scope the output stream so it closes and finalizes output to the string.
@@ -162,7 +176,7 @@
 }
 
 void PrintHeaderClientMethodInterfaces(
-    Printer *printer, const Method *method,
+    grpc_generator::Printer *printer, const grpc_generator::Method *method,
     std::map<grpc::string, grpc::string> *vars, bool is_public) {
   (*vars)["Method"] = method->name();
   (*vars)["Request"] = method->input_type_name();
@@ -187,7 +201,7 @@
                      "Async$Method$Raw(context, request, cq));\n");
       printer->Outdent();
       printer->Print("}\n");
-    } else if (method->ClientOnlyStreaming()) {
+    } else if (ClientOnlyStreaming(method)) {
       printer->Print(
           *vars,
           "std::unique_ptr< ::grpc::ClientWriterInterface< $Request$>>"
@@ -213,7 +227,7 @@
                      "Async$Method$Raw(context, response, cq, tag));\n");
       printer->Outdent();
       printer->Print("}\n");
-    } else if (method->ServerOnlyStreaming()) {
+    } else if (ServerOnlyStreaming(method)) {
       printer->Print(
           *vars,
           "std::unique_ptr< ::grpc::ClientReaderInterface< $Response$>>"
@@ -275,7 +289,7 @@
           "Async$Method$Raw(::grpc::ClientContext* context, "
           "const $Request$& request, "
           "::grpc::CompletionQueue* cq) = 0;\n");
-    } else if (method->ClientOnlyStreaming()) {
+    } else if (ClientOnlyStreaming(method)) {
       printer->Print(
           *vars,
           "virtual ::grpc::ClientWriterInterface< $Request$>*"
@@ -286,7 +300,7 @@
                      " Async$Method$Raw(::grpc::ClientContext* context, "
                      "$Response$* response, "
                      "::grpc::CompletionQueue* cq, void* tag) = 0;\n");
-    } else if (method->ServerOnlyStreaming()) {
+    } else if (ServerOnlyStreaming(method)) {
       printer->Print(
           *vars,
           "virtual ::grpc::ClientReaderInterface< $Response$>* $Method$Raw("
@@ -311,7 +325,8 @@
   }
 }
 
-void PrintHeaderClientMethod(Printer *printer, const Method *method,
+void PrintHeaderClientMethod(grpc_generator::Printer *printer,
+                             const grpc_generator::Method *method,
                              std::map<grpc::string, grpc::string> *vars,
                              bool is_public) {
   (*vars)["Method"] = method->name();
@@ -336,7 +351,7 @@
                      "Async$Method$Raw(context, request, cq));\n");
       printer->Outdent();
       printer->Print("}\n");
-    } else if (method->ClientOnlyStreaming()) {
+    } else if (ClientOnlyStreaming(method)) {
       printer->Print(
           *vars,
           "std::unique_ptr< ::grpc::ClientWriter< $Request$>>"
@@ -360,7 +375,7 @@
           "Async$Method$Raw(context, response, cq, tag));\n");
       printer->Outdent();
       printer->Print("}\n");
-    } else if (method->ServerOnlyStreaming()) {
+    } else if (ServerOnlyStreaming(method)) {
       printer->Print(
           *vars,
           "std::unique_ptr< ::grpc::ClientReader< $Response$>>"
@@ -418,7 +433,7 @@
                      "Async$Method$Raw(::grpc::ClientContext* context, "
                      "const $Request$& request, "
                      "::grpc::CompletionQueue* cq) override;\n");
-    } else if (method->ClientOnlyStreaming()) {
+    } else if (ClientOnlyStreaming(method)) {
       printer->Print(*vars,
                      "::grpc::ClientWriter< $Request$>* $Method$Raw("
                      "::grpc::ClientContext* context, $Response$* response) "
@@ -427,7 +442,7 @@
                      "::grpc::ClientAsyncWriter< $Request$>* Async$Method$Raw("
                      "::grpc::ClientContext* context, $Response$* response, "
                      "::grpc::CompletionQueue* cq, void* tag) override;\n");
-    } else if (method->ServerOnlyStreaming()) {
+    } else if (ServerOnlyStreaming(method)) {
       printer->Print(*vars,
                      "::grpc::ClientReader< $Response$>* $Method$Raw("
                      "::grpc::ClientContext* context, const $Request$& request)"
@@ -449,30 +464,32 @@
   }
 }
 
-void PrintHeaderClientMethodData(Printer *printer, const Method *method,
+void PrintHeaderClientMethodData(grpc_generator::Printer *printer,
+                                 const grpc_generator::Method *method,
                                  std::map<grpc::string, grpc::string> *vars) {
   (*vars)["Method"] = method->name();
   printer->Print(*vars, "const ::grpc::RpcMethod rpcmethod_$Method$_;\n");
 }
 
-void PrintHeaderServerMethodSync(Printer *printer, const Method *method,
+void PrintHeaderServerMethodSync(grpc_generator::Printer *printer,
+                                 const grpc_generator::Method *method,
                                  std::map<grpc::string, grpc::string> *vars) {
   (*vars)["Method"] = method->name();
   (*vars)["Request"] = method->input_type_name();
   (*vars)["Response"] = method->output_type_name();
-  printer->Print(method->GetLeadingComments().c_str());
+  printer->Print(method->GetLeadingComments("//").c_str());
   if (method->NoStreaming()) {
     printer->Print(*vars,
                    "virtual ::grpc::Status $Method$("
                    "::grpc::ServerContext* context, const $Request$* request, "
                    "$Response$* response);\n");
-  } else if (method->ClientOnlyStreaming()) {
+  } else if (ClientOnlyStreaming(method)) {
     printer->Print(*vars,
                    "virtual ::grpc::Status $Method$("
                    "::grpc::ServerContext* context, "
                    "::grpc::ServerReader< $Request$>* reader, "
                    "$Response$* response);\n");
-  } else if (method->ServerOnlyStreaming()) {
+  } else if (ServerOnlyStreaming(method)) {
     printer->Print(*vars,
                    "virtual ::grpc::Status $Method$("
                    "::grpc::ServerContext* context, const $Request$* request, "
@@ -485,10 +502,11 @@
         "::grpc::ServerReaderWriter< $Response$, $Request$>* stream);"
         "\n");
   }
-  printer->Print(method->GetTrailingComments().c_str());
+  printer->Print(method->GetTrailingComments("//").c_str());
 }
 
-void PrintHeaderServerMethodAsync(Printer *printer, const Method *method,
+void PrintHeaderServerMethodAsync(grpc_generator::Printer *printer,
+                                  const grpc_generator::Method *method,
                                   std::map<grpc::string, grpc::string> *vars) {
   (*vars)["Method"] = method->name();
   (*vars)["Request"] = method->input_type_name();
@@ -530,7 +548,7 @@
                    "  ::grpc::Service::RequestAsyncUnary($Idx$, context, "
                    "request, response, new_call_cq, notification_cq, tag);\n");
     printer->Print("}\n");
-  } else if (method->ClientOnlyStreaming()) {
+  } else if (ClientOnlyStreaming(method)) {
     printer->Print(
         *vars,
         "// disable synchronous version of this method\n"
@@ -552,7 +570,7 @@
                    "  ::grpc::Service::RequestAsyncClientStreaming($Idx$, "
                    "context, reader, new_call_cq, notification_cq, tag);\n");
     printer->Print("}\n");
-  } else if (method->ServerOnlyStreaming()) {
+  } else if (ServerOnlyStreaming(method)) {
     printer->Print(
         *vars,
         "// disable synchronous version of this method\n"
@@ -603,7 +621,7 @@
 }
 
 void PrintHeaderServerMethodStreamedUnary(
-    Printer *printer, const Method *method,
+    grpc_generator::Printer *printer, const grpc_generator::Method *method,
     std::map<grpc::string, grpc::string> *vars) {
   (*vars)["Method"] = method->name();
   (*vars)["Request"] = method->input_type_name();
@@ -654,12 +672,12 @@
 }
 
 void PrintHeaderServerMethodSplitStreaming(
-    Printer *printer, const Method *method,
+    grpc_generator::Printer *printer, const grpc_generator::Method *method,
     std::map<grpc::string, grpc::string> *vars) {
   (*vars)["Method"] = method->name();
   (*vars)["Request"] = method->input_type_name();
   (*vars)["Response"] = method->output_type_name();
-  if (method->ServerOnlyStreaming()) {
+  if (ServerOnlyStreaming(method)) {
     printer->Print(*vars, "template <class BaseClass>\n");
     printer->Print(*vars,
                    "class WithSplitStreamingMethod_$Method$ : "
@@ -706,7 +724,7 @@
 }
 
 void PrintHeaderServerMethodGeneric(
-    Printer *printer, const Method *method,
+    grpc_generator::Printer *printer, const grpc_generator::Method *method,
     std::map<grpc::string, grpc::string> *vars) {
   (*vars)["Method"] = method->name();
   (*vars)["Request"] = method->input_type_name();
@@ -737,7 +755,7 @@
         "  abort();\n"
         "  return ::grpc::Status(::grpc::StatusCode::UNIMPLEMENTED, \"\");\n"
         "}\n");
-  } else if (method->ClientOnlyStreaming()) {
+  } else if (ClientOnlyStreaming(method)) {
     printer->Print(
         *vars,
         "// disable synchronous version of this method\n"
@@ -748,7 +766,7 @@
         "  abort();\n"
         "  return ::grpc::Status(::grpc::StatusCode::UNIMPLEMENTED, \"\");\n"
         "}\n");
-  } else if (method->ServerOnlyStreaming()) {
+  } else if (ServerOnlyStreaming(method)) {
     printer->Print(
         *vars,
         "// disable synchronous version of this method\n"
@@ -775,11 +793,12 @@
   printer->Print(*vars, "};\n");
 }
 
-void PrintHeaderService(Printer *printer, const Service *service,
+void PrintHeaderService(grpc_generator::Printer *printer,
+                        const grpc_generator::Service *service,
                         std::map<grpc::string, grpc::string> *vars) {
   (*vars)["Service"] = service->name();
 
-  printer->Print(service->GetLeadingComments().c_str());
+  printer->Print(service->GetLeadingComments("//").c_str());
   printer->Print(*vars,
                  "class $Service$ final {\n"
                  " public:\n");
@@ -792,10 +811,10 @@
   printer->Indent();
   printer->Print("virtual ~StubInterface() {}\n");
   for (int i = 0; i < service->method_count(); ++i) {
-    printer->Print(service->method(i)->GetLeadingComments().c_str());
+    printer->Print(service->method(i)->GetLeadingComments("//").c_str());
     PrintHeaderClientMethodInterfaces(printer, service->method(i).get(), vars,
                                       true);
-    printer->Print(service->method(i)->GetTrailingComments().c_str());
+    printer->Print(service->method(i)->GetTrailingComments("//").c_str());
   }
   printer->Outdent();
   printer->Print("private:\n");
@@ -903,13 +922,15 @@
   printer->Print("typedef ");
   for (int i = 0; i < service->method_count(); ++i) {
     (*vars)["method_name"] = service->method(i).get()->name();
-    if (service->method(i)->ServerOnlyStreaming()) {
+    auto method = service->method(i);
+    if (ServerOnlyStreaming(method.get())) {
       printer->Print(*vars, "WithSplitStreamingMethod_$method_name$<");
     }
   }
   printer->Print("Service");
   for (int i = 0; i < service->method_count(); ++i) {
-    if (service->method(i)->ServerOnlyStreaming()) {
+    auto method = service->method(i);
+    if (ServerOnlyStreaming(method.get())) {
       printer->Print(" >");
     }
   }
@@ -919,7 +940,8 @@
   printer->Print("typedef ");
   for (int i = 0; i < service->method_count(); ++i) {
     (*vars)["method_name"] = service->method(i).get()->name();
-    if (service->method(i)->ServerOnlyStreaming()) {
+    auto method = service->method(i);
+    if (ServerOnlyStreaming(method.get())) {
       printer->Print(*vars, "WithSplitStreamingMethod_$method_name$<");
     }
     if (service->method(i)->NoStreaming()) {
@@ -928,8 +950,9 @@
   }
   printer->Print("Service");
   for (int i = 0; i < service->method_count(); ++i) {
+    auto method = service->method(i);
     if (service->method(i)->NoStreaming() ||
-        service->method(i)->ServerOnlyStreaming()) {
+        ServerOnlyStreaming(method.get())) {
       printer->Print(" >");
     }
   }
@@ -937,10 +960,11 @@
 
   printer->Outdent();
   printer->Print("};\n");
-  printer->Print(service->GetTrailingComments().c_str());
+  printer->Print(service->GetTrailingComments("//").c_str());
 }
 
-grpc::string GetHeaderServices(File *file, const Parameters &params) {
+grpc::string GetHeaderServices(grpc_generator::File *file,
+                               const Parameters &params) {
   grpc::string output;
   {
     // Scope the output stream so it closes and finalizes output to the string.
@@ -970,7 +994,8 @@
   return output;
 }
 
-grpc::string GetHeaderEpilogue(File *file, const Parameters & /*params*/) {
+grpc::string GetHeaderEpilogue(grpc_generator::File *file,
+                               const Parameters & /*params*/) {
   grpc::string output;
   {
     // Scope the output stream so it closes and finalizes output to the string.
@@ -993,12 +1018,13 @@
     printer->Print(vars, "\n");
     printer->Print(vars, "#endif  // GRPC_$filename_identifier$__INCLUDED\n");
 
-    printer->Print(file->GetTrailingComments().c_str());
+    printer->Print(file->GetTrailingComments("//").c_str());
   }
   return output;
 }
 
-grpc::string GetSourcePrologue(File *file, const Parameters & /*params*/) {
+grpc::string GetSourcePrologue(grpc_generator::File *file,
+                               const Parameters & /*params*/) {
   grpc::string output;
   {
     // Scope the output stream so it closes and finalizes output to the string.
@@ -1007,8 +1033,8 @@
 
     vars["filename"] = file->filename();
     vars["filename_base"] = file->filename_without_ext();
-    vars["message_header_ext"] = file->message_header_ext();
-    vars["service_header_ext"] = file->service_header_ext();
+    vars["message_header_ext"] = message_header_ext();
+    vars["service_header_ext"] = service_header_ext();
 
     printer->Print(vars, "// Generated by the gRPC C++ plugin.\n");
     printer->Print(vars,
@@ -1023,7 +1049,8 @@
   return output;
 }
 
-grpc::string GetSourceIncludes(File *file, const Parameters &params) {
+grpc::string GetSourceIncludes(grpc_generator::File *file,
+                               const Parameters &params) {
   grpc::string output;
   {
     // Scope the output stream so it closes and finalizes output to the string.
@@ -1056,7 +1083,8 @@
   return output;
 }
 
-void PrintSourceClientMethod(Printer *printer, const Method *method,
+void PrintSourceClientMethod(grpc_generator::Printer *printer,
+                             const grpc_generator::Method *method,
                              std::map<grpc::string, grpc::string> *vars) {
   (*vars)["Method"] = method->name();
   (*vars)["Request"] = method->input_type_name();
@@ -1084,7 +1112,7 @@
                    "rpcmethod_$Method$_, "
                    "context, request);\n"
                    "}\n\n");
-  } else if (method->ClientOnlyStreaming()) {
+  } else if (ClientOnlyStreaming(method)) {
     printer->Print(*vars,
                    "::grpc::ClientWriter< $Request$>* "
                    "$ns$$Service$::Stub::$Method$Raw("
@@ -1106,7 +1134,7 @@
                    "rpcmethod_$Method$_, "
                    "context, response, tag);\n"
                    "}\n\n");
-  } else if (method->ServerOnlyStreaming()) {
+  } else if (ServerOnlyStreaming(method)) {
     printer->Print(
         *vars,
         "::grpc::ClientReader< $Response$>* "
@@ -1156,7 +1184,8 @@
   }
 }
 
-void PrintSourceServerMethod(Printer *printer, const Method *method,
+void PrintSourceServerMethod(grpc_generator::Printer *printer,
+                             const grpc_generator::Method *method,
                              std::map<grpc::string, grpc::string> *vars) {
   (*vars)["Method"] = method->name();
   (*vars)["Request"] = method->input_type_name();
@@ -1173,7 +1202,7 @@
         "  return ::grpc::Status("
         "::grpc::StatusCode::UNIMPLEMENTED, \"\");\n");
     printer->Print("}\n\n");
-  } else if (method->ClientOnlyStreaming()) {
+  } else if (ClientOnlyStreaming(method)) {
     printer->Print(*vars,
                    "::grpc::Status $ns$$Service$::Service::$Method$("
                    "::grpc::ServerContext* context, "
@@ -1186,7 +1215,7 @@
         "  return ::grpc::Status("
         "::grpc::StatusCode::UNIMPLEMENTED, \"\");\n");
     printer->Print("}\n\n");
-  } else if (method->ServerOnlyStreaming()) {
+  } else if (ServerOnlyStreaming(method)) {
     printer->Print(*vars,
                    "::grpc::Status $ns$$Service$::Service::$Method$("
                    "::grpc::ServerContext* context, "
@@ -1214,7 +1243,8 @@
   }
 }
 
-void PrintSourceService(Printer *printer, const Service *service,
+void PrintSourceService(grpc_generator::Printer *printer,
+                        const grpc_generator::Service *service,
                         std::map<grpc::string, grpc::string> *vars) {
   (*vars)["Service"] = service->name();
 
@@ -1250,9 +1280,9 @@
       // NOTE: There is no reason to consider streamed-unary as a separate
       // category here since this part is setting up the client-side stub
       // and this appears as a NORMAL_RPC from the client-side.
-    } else if (method->ClientOnlyStreaming()) {
+    } else if (ClientOnlyStreaming(method.get())) {
       (*vars)["StreamingType"] = "CLIENT_STREAMING";
-    } else if (method->ServerOnlyStreaming()) {
+    } else if (ServerOnlyStreaming(method.get())) {
       (*vars)["StreamingType"] = "SERVER_STREAMING";
     } else {
       (*vars)["StreamingType"] = "BIDI_STREAMING";
@@ -1290,7 +1320,7 @@
           "$Request$, "
           "$Response$>(\n"
           "        std::mem_fn(&$ns$$Service$::Service::$Method$), this)));\n");
-    } else if (method->ClientOnlyStreaming()) {
+    } else if (ClientOnlyStreaming(method.get())) {
       printer->Print(
           *vars,
           "AddMethod(new ::grpc::RpcServiceMethod(\n"
@@ -1299,7 +1329,7 @@
           "    new ::grpc::ClientStreamingHandler< "
           "$ns$$Service$::Service, $Request$, $Response$>(\n"
           "        std::mem_fn(&$ns$$Service$::Service::$Method$), this)));\n");
-    } else if (method->ServerOnlyStreaming()) {
+    } else if (ServerOnlyStreaming(method.get())) {
       printer->Print(
           *vars,
           "AddMethod(new ::grpc::RpcServiceMethod(\n"
@@ -1330,7 +1360,8 @@
   }
 }
 
-grpc::string GetSourceServices(File *file, const Parameters &params) {
+grpc::string GetSourceServices(grpc_generator::File *file,
+                               const Parameters &params) {
   grpc::string output;
   {
     // Scope the output stream so it closes and finalizes output to the string.
@@ -1358,7 +1389,8 @@
   return output;
 }
 
-grpc::string GetSourceEpilogue(File *file, const Parameters & /*params*/) {
+grpc::string GetSourceEpilogue(grpc_generator::File *file,
+                               const Parameters & /*params*/) {
   grpc::string temp;
 
   if (!file->package().empty()) {
diff --git a/src/compiler/cpp_generator.h b/src/compiler/cpp_generator.h
index d0343e9..69fd8a9 100644
--- a/src/compiler/cpp_generator.h
+++ b/src/compiler/cpp_generator.h
@@ -42,6 +42,7 @@
 #include <vector>
 
 #include "src/compiler/config.h"
+#include "src/compiler/schema_interface.h"
 
 #ifndef GRPC_CUSTOM_STRING
 #include <string>
@@ -66,91 +67,37 @@
   grpc::string grpc_search_path;
 };
 
-// A common interface for objects having comments in the source.
-// Return formatted comments to be inserted in generated code.
-struct CommentHolder {
-  virtual ~CommentHolder() {}
-  virtual grpc::string GetLeadingComments() const = 0;
-  virtual grpc::string GetTrailingComments() const = 0;
-};
-
-// An abstract interface representing a method.
-struct Method : public CommentHolder {
-  virtual ~Method() {}
-
-  virtual grpc::string name() const = 0;
-
-  virtual grpc::string input_type_name() const = 0;
-  virtual grpc::string output_type_name() const = 0;
-
-  virtual bool NoStreaming() const = 0;
-  virtual bool ClientOnlyStreaming() const = 0;
-  virtual bool ServerOnlyStreaming() const = 0;
-  virtual bool BidiStreaming() const = 0;
-};
-
-// An abstract interface representing a service.
-struct Service : public CommentHolder {
-  virtual ~Service() {}
-
-  virtual grpc::string name() const = 0;
-
-  virtual int method_count() const = 0;
-  virtual std::unique_ptr<const Method> method(int i) const = 0;
-};
-
-struct Printer {
-  virtual ~Printer() {}
-
-  virtual void Print(const std::map<grpc::string, grpc::string> &vars,
-                     const char *template_string) = 0;
-  virtual void Print(const char *string) = 0;
-  virtual void Indent() = 0;
-  virtual void Outdent() = 0;
-};
-
-// An interface that allows the source generated to be output using various
-// libraries/idls/serializers.
-struct File : public CommentHolder {
-  virtual ~File() {}
-
-  virtual grpc::string filename() const = 0;
-  virtual grpc::string filename_without_ext() const = 0;
-  virtual grpc::string message_header_ext() const = 0;
-  virtual grpc::string service_header_ext() const = 0;
-  virtual grpc::string package() const = 0;
-  virtual std::vector<grpc::string> package_parts() const = 0;
-  virtual grpc::string additional_headers() const = 0;
-
-  virtual int service_count() const = 0;
-  virtual std::unique_ptr<const Service> service(int i) const = 0;
-
-  virtual std::unique_ptr<Printer> CreatePrinter(grpc::string *str) const = 0;
-};
-
 // Return the prologue of the generated header file.
-grpc::string GetHeaderPrologue(File *file, const Parameters &params);
+grpc::string GetHeaderPrologue(grpc_generator::File *file,
+                               const Parameters &params);
 
 // Return the includes needed for generated header file.
-grpc::string GetHeaderIncludes(File *file, const Parameters &params);
+grpc::string GetHeaderIncludes(grpc_generator::File *file,
+                               const Parameters &params);
 
 // Return the includes needed for generated source file.
-grpc::string GetSourceIncludes(File *file, const Parameters &params);
+grpc::string GetSourceIncludes(grpc_generator::File *file,
+                               const Parameters &params);
 
 // Return the epilogue of the generated header file.
-grpc::string GetHeaderEpilogue(File *file, const Parameters &params);
+grpc::string GetHeaderEpilogue(grpc_generator::File *file,
+                               const Parameters &params);
 
 // Return the prologue of the generated source file.
-grpc::string GetSourcePrologue(File *file, const Parameters &params);
+grpc::string GetSourcePrologue(grpc_generator::File *file,
+                               const Parameters &params);
 
 // Return the services for generated header file.
-grpc::string GetHeaderServices(File *file, const Parameters &params);
+grpc::string GetHeaderServices(grpc_generator::File *file,
+                               const Parameters &params);
 
 // Return the services for generated source file.
-grpc::string GetSourceServices(File *file, const Parameters &params);
+grpc::string GetSourceServices(grpc_generator::File *file,
+                               const Parameters &params);
 
 // Return the epilogue of the generated source file.
-grpc::string GetSourceEpilogue(File *file, const Parameters &params);
+grpc::string GetSourceEpilogue(grpc_generator::File *file,
+                               const Parameters &params);
 
 }  // namespace grpc_cpp_generator
 
diff --git a/src/compiler/cpp_generator_helpers.h b/src/compiler/cpp_generator_helpers.h
index 87e278f..83932a0 100644
--- a/src/compiler/cpp_generator_helpers.h
+++ b/src/compiler/cpp_generator_helpers.h
@@ -35,6 +35,7 @@
 #define GRPC_INTERNAL_COMPILER_CPP_GENERATOR_HELPERS_H
 
 #include <map>
+
 #include "src/compiler/config.h"
 #include "src/compiler/generator_helpers.h"
 
diff --git a/src/compiler/cpp_plugin.cc b/src/compiler/cpp_plugin.cc
index 38f8f73..4ee05ee 100644
--- a/src/compiler/cpp_plugin.cc
+++ b/src/compiler/cpp_plugin.cc
@@ -40,139 +40,8 @@
 #include "src/compiler/config.h"
 
 #include "src/compiler/cpp_generator.h"
-#include "src/compiler/cpp_generator_helpers.h"
 #include "src/compiler/generator_helpers.h"
-
-using grpc_cpp_generator::GetCppComments;
-
-class ProtoBufMethod : public grpc_cpp_generator::Method {
- public:
-  ProtoBufMethod(const grpc::protobuf::MethodDescriptor *method)
-      : method_(method) {}
-
-  grpc::string name() const { return method_->name(); }
-
-  grpc::string input_type_name() const {
-    return grpc_cpp_generator::ClassName(method_->input_type(), true);
-  }
-  grpc::string output_type_name() const {
-    return grpc_cpp_generator::ClassName(method_->output_type(), true);
-  }
-
-  bool NoStreaming() const {
-    return !method_->client_streaming() && !method_->server_streaming();
-  }
-
-  bool ClientOnlyStreaming() const {
-    return method_->client_streaming() && !method_->server_streaming();
-  }
-
-  bool ServerOnlyStreaming() const {
-    return !method_->client_streaming() && method_->server_streaming();
-  }
-
-  bool BidiStreaming() const {
-    return method_->client_streaming() && method_->server_streaming();
-  }
-
-  grpc::string GetLeadingComments() const {
-    return GetCppComments(method_, true);
-  }
-
-  grpc::string GetTrailingComments() const {
-    return GetCppComments(method_, false);
-  }
-
- private:
-  const grpc::protobuf::MethodDescriptor *method_;
-};
-
-class ProtoBufService : public grpc_cpp_generator::Service {
- public:
-  ProtoBufService(const grpc::protobuf::ServiceDescriptor *service)
-      : service_(service) {}
-
-  grpc::string name() const { return service_->name(); }
-
-  int method_count() const { return service_->method_count(); };
-  std::unique_ptr<const grpc_cpp_generator::Method> method(int i) const {
-    return std::unique_ptr<const grpc_cpp_generator::Method>(
-        new ProtoBufMethod(service_->method(i)));
-  };
-
-  grpc::string GetLeadingComments() const {
-    return GetCppComments(service_, true);
-  }
-
-  grpc::string GetTrailingComments() const {
-    return GetCppComments(service_, false);
-  }
-
- private:
-  const grpc::protobuf::ServiceDescriptor *service_;
-};
-
-class ProtoBufPrinter : public grpc_cpp_generator::Printer {
- public:
-  ProtoBufPrinter(grpc::string *str)
-      : output_stream_(str), printer_(&output_stream_, '$') {}
-
-  void Print(const std::map<grpc::string, grpc::string> &vars,
-             const char *string_template) {
-    printer_.Print(vars, string_template);
-  }
-
-  void Print(const char *string) { printer_.Print(string); }
-  void Indent() { printer_.Indent(); }
-  void Outdent() { printer_.Outdent(); }
-
- private:
-  grpc::protobuf::io::StringOutputStream output_stream_;
-  grpc::protobuf::io::Printer printer_;
-};
-
-class ProtoBufFile : public grpc_cpp_generator::File {
- public:
-  ProtoBufFile(const grpc::protobuf::FileDescriptor *file) : file_(file) {}
-
-  grpc::string filename() const { return file_->name(); }
-  grpc::string filename_without_ext() const {
-    return grpc_generator::StripProto(filename());
-  }
-
-  grpc::string message_header_ext() const { return ".pb.h"; }
-  grpc::string service_header_ext() const { return ".grpc.pb.h"; }
-
-  grpc::string package() const { return file_->package(); }
-  std::vector<grpc::string> package_parts() const {
-    return grpc_generator::tokenize(package(), ".");
-  }
-
-  grpc::string additional_headers() const { return ""; }
-
-  int service_count() const { return file_->service_count(); };
-  std::unique_ptr<const grpc_cpp_generator::Service> service(int i) const {
-    return std::unique_ptr<const grpc_cpp_generator::Service>(
-        new ProtoBufService(file_->service(i)));
-  }
-
-  std::unique_ptr<grpc_cpp_generator::Printer> CreatePrinter(
-      grpc::string *str) const {
-    return std::unique_ptr<grpc_cpp_generator::Printer>(
-        new ProtoBufPrinter(str));
-  }
-
-  grpc::string GetLeadingComments() const {
-    return GetCppComments(file_, true);
-  }
-
-  grpc::string GetTrailingComments() const {
-    return GetCppComments(file_, false);
-  }
-
- private:
-  const grpc::protobuf::FileDescriptor *file_;
-};
+#include "src/compiler/protobuf_plugin.h"
 
 class CppGrpcGenerator : public grpc::protobuf::compiler::CodeGenerator {
  public:
diff --git a/src/compiler/protobuf_plugin.h b/src/compiler/protobuf_plugin.h
new file mode 100644
index 0000000..cb01bd3
--- /dev/null
+++ b/src/compiler/protobuf_plugin.h
@@ -0,0 +1,210 @@
+/*
+ *
+ * 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_INTERNAL_COMPILER_PROTOBUF_PLUGIN_H
+#define GRPC_INTERNAL_COMPILER_PROTOBUF_PLUGIN_H
+
+#include "src/compiler/config.h"
+#include "src/compiler/cpp_generator_helpers.h"
+#include "src/compiler/python_generator_helpers.h"
+#include "src/compiler/python_private_generator.h"
+#include "src/compiler/schema_interface.h"
+
+#include <vector>
+
+// Get leading or trailing comments in a string.
+template <typename DescriptorType>
+inline grpc::string GetCommentsHelper(const DescriptorType *desc, bool leading,
+                                      const grpc::string &prefix) {
+  return grpc_generator::GetPrefixedComments(desc, leading, prefix);
+}
+
+class ProtoBufMethod : public grpc_generator::Method {
+ public:
+  ProtoBufMethod(const grpc::protobuf::MethodDescriptor *method)
+      : method_(method) {}
+
+  grpc::string name() const { return method_->name(); }
+
+  grpc::string input_type_name() const {
+    return grpc_cpp_generator::ClassName(method_->input_type(), true);
+  }
+  grpc::string output_type_name() const {
+    return grpc_cpp_generator::ClassName(method_->output_type(), true);
+  }
+
+  grpc::string get_input_type_name() const {
+    return method_->input_type()->file()->name();
+  }
+  grpc::string get_output_type_name() const {
+    return method_->output_type()->file()->name();
+  }
+
+  bool get_module_and_message_path_input(grpc::string *str,
+                                         grpc::string generator_file_name,
+                                         bool generate_in_pb2_grpc,
+                                         grpc::string import_prefix) const {
+    return grpc_python_generator::GetModuleAndMessagePath(
+        method_->input_type(), str, generator_file_name, generate_in_pb2_grpc,
+        import_prefix);
+  }
+
+  bool get_module_and_message_path_output(grpc::string *str,
+                                          grpc::string generator_file_name,
+                                          bool generate_in_pb2_grpc,
+                                          grpc::string import_prefix) const {
+    return grpc_python_generator::GetModuleAndMessagePath(
+        method_->output_type(), str, generator_file_name, generate_in_pb2_grpc,
+        import_prefix);
+  }
+
+  bool NoStreaming() const {
+    return !method_->client_streaming() && !method_->server_streaming();
+  }
+
+  bool ClientStreaming() const { return method_->client_streaming(); }
+
+  bool ServerStreaming() const { return method_->server_streaming(); }
+
+  bool BidiStreaming() const {
+    return method_->client_streaming() && method_->server_streaming();
+  }
+
+  grpc::string GetLeadingComments(const grpc::string prefix) const {
+    return GetCommentsHelper(method_, true, prefix);
+  }
+
+  grpc::string GetTrailingComments(const grpc::string prefix) const {
+    return GetCommentsHelper(method_, false, prefix);
+  }
+
+  vector<grpc::string> GetAllComments() const {
+    return grpc_python_generator::get_all_comments(method_);
+  }
+
+ private:
+  const grpc::protobuf::MethodDescriptor *method_;
+};
+
+class ProtoBufService : public grpc_generator::Service {
+ public:
+  ProtoBufService(const grpc::protobuf::ServiceDescriptor *service)
+      : service_(service) {}
+
+  grpc::string name() const { return service_->name(); }
+
+  int method_count() const { return service_->method_count(); };
+  std::unique_ptr<const grpc_generator::Method> method(int i) const {
+    return std::unique_ptr<const grpc_generator::Method>(
+        new ProtoBufMethod(service_->method(i)));
+  };
+
+  grpc::string GetLeadingComments(const grpc::string prefix) const {
+    return GetCommentsHelper(service_, true, prefix);
+  }
+
+  grpc::string GetTrailingComments(const grpc::string prefix) const {
+    return GetCommentsHelper(service_, false, prefix);
+  }
+
+  vector<grpc::string> GetAllComments() const {
+    return grpc_python_generator::get_all_comments(service_);
+  }
+
+ private:
+  const grpc::protobuf::ServiceDescriptor *service_;
+};
+
+class ProtoBufPrinter : public grpc_generator::Printer {
+ public:
+  ProtoBufPrinter(grpc::string *str)
+      : output_stream_(str), printer_(&output_stream_, '$') {}
+
+  void Print(const std::map<grpc::string, grpc::string> &vars,
+             const char *string_template) {
+    printer_.Print(vars, string_template);
+  }
+
+  void Print(const char *string) { printer_.Print(string); }
+  void Indent() { printer_.Indent(); }
+  void Outdent() { printer_.Outdent(); }
+
+ private:
+  grpc::protobuf::io::StringOutputStream output_stream_;
+  grpc::protobuf::io::Printer printer_;
+};
+
+class ProtoBufFile : public grpc_generator::File {
+ public:
+  ProtoBufFile(const grpc::protobuf::FileDescriptor *file) : file_(file) {}
+
+  grpc::string filename() const { return file_->name(); }
+  grpc::string filename_without_ext() const {
+    return grpc_generator::StripProto(filename());
+  }
+
+  grpc::string package() const { return file_->package(); }
+  std::vector<grpc::string> package_parts() const {
+    return grpc_generator::tokenize(package(), ".");
+  }
+
+  grpc::string additional_headers() const { return ""; }
+
+  int service_count() const { return file_->service_count(); };
+  std::unique_ptr<const grpc_generator::Service> service(int i) const {
+    return std::unique_ptr<const grpc_generator::Service>(
+        new ProtoBufService(file_->service(i)));
+  }
+
+  std::unique_ptr<grpc_generator::Printer> CreatePrinter(
+      grpc::string *str) const {
+    return std::unique_ptr<grpc_generator::Printer>(new ProtoBufPrinter(str));
+  }
+
+  grpc::string GetLeadingComments(const grpc::string prefix) const {
+    return GetCommentsHelper(file_, true, prefix);
+  }
+
+  grpc::string GetTrailingComments(const grpc::string prefix) const {
+    return GetCommentsHelper(file_, false, prefix);
+  }
+
+  vector<grpc::string> GetAllComments() const {
+    return grpc_python_generator::get_all_comments(file_);
+  }
+
+ private:
+  const grpc::protobuf::FileDescriptor *file_;
+};
+
+#endif  // GRPC_INTERNAL_COMPILER_PROTOBUF_PLUGIN_H
diff --git a/src/compiler/python_generator.cc b/src/compiler/python_generator.cc
index 49d90fd..2649c16 100644
--- a/src/compiler/python_generator.cc
+++ b/src/compiler/python_generator.cc
@@ -47,20 +47,15 @@
 
 #include "src/compiler/config.h"
 #include "src/compiler/generator_helpers.h"
+#include "src/compiler/protobuf_plugin.h"
 #include "src/compiler/python_generator.h"
+#include "src/compiler/python_generator_helpers.h"
+#include "src/compiler/python_private_generator.h"
 
-using grpc_generator::StringReplace;
-using grpc_generator::StripProto;
-using grpc::protobuf::Descriptor;
 using grpc::protobuf::FileDescriptor;
-using grpc::protobuf::MethodDescriptor;
-using grpc::protobuf::ServiceDescriptor;
 using grpc::protobuf::compiler::GeneratorContext;
 using grpc::protobuf::io::CodedOutputStream;
-using grpc::protobuf::io::Printer;
-using grpc::protobuf::io::StringOutputStream;
 using grpc::protobuf::io::ZeroCopyOutputStream;
-using std::initializer_list;
 using std::make_pair;
 using std::map;
 using std::pair;
@@ -71,9 +66,10 @@
 
 namespace grpc_python_generator {
 
+grpc::string generator_file_name;
+
 namespace {
 
-typedef vector<const Descriptor*> DescriptorVector;
 typedef map<grpc::string, grpc::string> StringMap;
 typedef vector<grpc::string> StringVector;
 typedef tuple<grpc::string, grpc::string> StringPair;
@@ -88,133 +84,22 @@
 // }
 class IndentScope {
  public:
-  explicit IndentScope(Printer* printer) : printer_(printer) {
+  explicit IndentScope(grpc_generator::Printer* printer) : printer_(printer) {
     printer_->Indent();
   }
 
   ~IndentScope() { printer_->Outdent(); }
 
  private:
-  Printer* printer_;
-};
-
-// TODO(https://github.com/google/protobuf/issues/888):
-// Export `ModuleName` from protobuf's
-// `src/google/protobuf/compiler/python/python_generator.cc` file.
-grpc::string ModuleName(const grpc::string& filename,
-                        const grpc::string& import_prefix) {
-  grpc::string basename = StripProto(filename);
-  basename = StringReplace(basename, "-", "_");
-  basename = StringReplace(basename, "/", ".");
-  return import_prefix + basename + "_pb2";
-}
-
-// TODO(https://github.com/google/protobuf/issues/888):
-// Export `ModuleAlias` from protobuf's
-// `src/google/protobuf/compiler/python/python_generator.cc` file.
-grpc::string ModuleAlias(const grpc::string& filename,
-                         const grpc::string& import_prefix) {
-  grpc::string module_name = ModuleName(filename, import_prefix);
-  // We can't have dots in the module name, so we replace each with _dot_.
-  // But that could lead to a collision between a.b and a_dot_b, so we also
-  // duplicate each underscore.
-  module_name = StringReplace(module_name, "_", "__");
-  module_name = StringReplace(module_name, ".", "_dot_");
-  return module_name;
-}
-
-// Tucks all generator state in an anonymous namespace away from
-// PythonGrpcGenerator and the header file, mostly to encourage future changes
-// to not require updates to the grpcio-tools C++ code part. Assumes that it is
-// only ever used from a single thread.
-struct PrivateGenerator {
-  const GeneratorConfiguration& config;
-  const FileDescriptor* file;
-
-  bool generate_in_pb2_grpc;
-
-  Printer* out;
-
-  PrivateGenerator(const GeneratorConfiguration& config,
-                   const FileDescriptor* file);
-
-  std::pair<bool, grpc::string> GetGrpcServices();
-
- private:
-  bool PrintPreamble();
-  bool PrintBetaPreamble();
-  bool PrintGAServices();
-  bool PrintBetaServices();
-
-  bool PrintAddServicerToServer(
-      const grpc::string& package_qualified_service_name,
-      const ServiceDescriptor* service);
-  bool PrintServicer(const ServiceDescriptor* service);
-  bool PrintStub(const grpc::string& package_qualified_service_name,
-                 const ServiceDescriptor* service);
-
-  bool PrintBetaServicer(const ServiceDescriptor* service);
-  bool PrintBetaServerFactory(
-      const grpc::string& package_qualified_service_name,
-      const ServiceDescriptor* service);
-  bool PrintBetaStub(const ServiceDescriptor* service);
-  bool PrintBetaStubFactory(const grpc::string& package_qualified_service_name,
-                            const ServiceDescriptor* service);
-
-  // Get all comments (leading, leading_detached, trailing) and print them as a
-  // docstring. Any leading space of a line will be removed, but the line
-  // wrapping will not be changed.
-  template <typename DescriptorType>
-  void PrintAllComments(const DescriptorType* descriptor);
-
-  bool GetModuleAndMessagePath(const Descriptor* type, grpc::string* out);
+  grpc_generator::Printer* printer_;
 };
 
 PrivateGenerator::PrivateGenerator(const GeneratorConfiguration& config,
-                                   const FileDescriptor* file)
+                                   const grpc_generator::File* file)
     : config(config), file(file) {}
 
-bool PrivateGenerator::GetModuleAndMessagePath(const Descriptor* type,
-                                               grpc::string* out) {
-  const Descriptor* path_elem_type = type;
-  DescriptorVector message_path;
-  do {
-    message_path.push_back(path_elem_type);
-    path_elem_type = path_elem_type->containing_type();
-  } while (path_elem_type);  // implicit nullptr comparison; don't be explicit
-  grpc::string file_name = type->file()->name();
-  static const int proto_suffix_length = strlen(".proto");
-  if (!(file_name.size() > static_cast<size_t>(proto_suffix_length) &&
-        file_name.find_last_of(".proto") == file_name.size() - 1)) {
-    return false;
-  }
-  grpc::string generator_file_name = file->name();
-  grpc::string module;
-  if (generator_file_name != file_name || generate_in_pb2_grpc) {
-    module = ModuleAlias(file_name, config.import_prefix) + ".";
-  } else {
-    module = "";
-  }
-  grpc::string message_type;
-  for (DescriptorVector::reverse_iterator path_iter = message_path.rbegin();
-       path_iter != message_path.rend(); ++path_iter) {
-    message_type += (*path_iter)->name() + ".";
-  }
-  // no pop_back prior to C++11
-  message_type.resize(message_type.size() - 1);
-  *out = module + message_type;
-  return true;
-}
-
-template <typename DescriptorType>
-void PrivateGenerator::PrintAllComments(const DescriptorType* descriptor) {
-  StringVector comments;
-  grpc_generator::GetComment(
-      descriptor, grpc_generator::COMMENTTYPE_LEADING_DETACHED, &comments);
-  grpc_generator::GetComment(descriptor, grpc_generator::COMMENTTYPE_LEADING,
-                             &comments);
-  grpc_generator::GetComment(descriptor, grpc_generator::COMMENTTYPE_TRAILING,
-                             &comments);
+void PrivateGenerator::PrintAllComments(StringVector comments,
+                                        grpc_generator::Printer* out) {
   if (comments.empty()) {
     return;
   }
@@ -230,10 +115,12 @@
   out->Print("\"\"\"\n");
 }
 
-bool PrivateGenerator::PrintBetaServicer(const ServiceDescriptor* service) {
+bool PrivateGenerator::PrintBetaServicer(const grpc_generator::Service* service,
+                                         grpc_generator::Printer* out) {
+  StringMap service_dict;
+  service_dict["Service"] = service->name();
   out->Print("\n\n");
-  out->Print("class Beta$Service$Servicer(object):\n", "Service",
-             service->name());
+  out->Print(service_dict, "class Beta$Service$Servicer(object):\n");
   {
     IndentScope raii_class_indent(out);
     out->Print(
@@ -243,16 +130,20 @@
         "generated\n"
         "only to ease transition from grpcio<0.15.0 to "
         "grpcio>=0.15.0.\"\"\"\n");
-    PrintAllComments(service);
+    StringVector service_comments = service->GetAllComments();
+    PrintAllComments(service_comments, out);
     for (int i = 0; i < service->method_count(); ++i) {
-      const MethodDescriptor* method = service->method(i);
+      auto method = service->method(i);
       grpc::string arg_name =
-          method->client_streaming() ? "request_iterator" : "request";
-      out->Print("def $Method$(self, $ArgName$, context):\n", "Method",
-                 method->name(), "ArgName", arg_name);
+          method->ClientStreaming() ? "request_iterator" : "request";
+      StringMap method_dict;
+      method_dict["Method"] = method->name();
+      method_dict["ArgName"] = arg_name;
+      out->Print(method_dict, "def $Method$(self, $ArgName$, context):\n");
       {
         IndentScope raii_method_indent(out);
-        PrintAllComments(method);
+        StringVector method_comments = method->GetAllComments();
+        PrintAllComments(method_comments, out);
         out->Print("context.code(beta_interfaces.StatusCode.UNIMPLEMENTED)\n");
       }
     }
@@ -260,9 +151,12 @@
   return true;
 }
 
-bool PrivateGenerator::PrintBetaStub(const ServiceDescriptor* service) {
+bool PrivateGenerator::PrintBetaStub(const grpc_generator::Service* service,
+                                     grpc_generator::Printer* out) {
+  StringMap service_dict;
+  service_dict["Service"] = service->name();
   out->Print("\n\n");
-  out->Print("class Beta$Service$Stub(object):\n", "Service", service->name());
+  out->Print(service_dict, "class Beta$Service$Stub(object):\n");
   {
     IndentScope raii_class_indent(out);
     out->Print(
@@ -272,11 +166,12 @@
         "generated\n"
         "only to ease transition from grpcio<0.15.0 to "
         "grpcio>=0.15.0.\"\"\"\n");
-    PrintAllComments(service);
+    StringVector service_comments = service->GetAllComments();
+    PrintAllComments(service_comments, out);
     for (int i = 0; i < service->method_count(); ++i) {
-      const MethodDescriptor* method = service->method(i);
+      auto method = service->method(i);
       grpc::string arg_name =
-          method->client_streaming() ? "request_iterator" : "request";
+          method->ClientStreaming() ? "request_iterator" : "request";
       StringMap method_dict;
       method_dict["Method"] = method->name();
       method_dict["ArgName"] = arg_name;
@@ -285,10 +180,11 @@
                  "with_call=False, protocol_options=None):\n");
       {
         IndentScope raii_method_indent(out);
-        PrintAllComments(method);
+        StringVector method_comments = method->GetAllComments();
+        PrintAllComments(method_comments, out);
         out->Print("raise NotImplementedError()\n");
       }
-      if (!method->server_streaming()) {
+      if (!method->ServerStreaming()) {
         out->Print(method_dict, "$Method$.future = None\n");
       }
     }
@@ -298,12 +194,13 @@
 
 bool PrivateGenerator::PrintBetaServerFactory(
     const grpc::string& package_qualified_service_name,
-    const ServiceDescriptor* service) {
+    const grpc_generator::Service* service, grpc_generator::Printer* out) {
+  StringMap service_dict;
+  service_dict["Service"] = service->name();
   out->Print("\n\n");
-  out->Print(
-      "def beta_create_$Service$_server(servicer, pool=None, "
-      "pool_size=None, default_timeout=None, maximum_timeout=None):\n",
-      "Service", service->name());
+  out->Print(service_dict,
+             "def beta_create_$Service$_server(servicer, pool=None, "
+             "pool_size=None, default_timeout=None, maximum_timeout=None):\n");
   {
     IndentScope raii_create_server_indent(out);
     out->Print(
@@ -316,19 +213,21 @@
     StringMap input_message_modules_and_classes;
     StringMap output_message_modules_and_classes;
     for (int i = 0; i < service->method_count(); ++i) {
-      const MethodDescriptor* method = service->method(i);
+      auto method = service->method(i);
       const grpc::string method_implementation_constructor =
-          grpc::string(method->client_streaming() ? "stream_" : "unary_") +
-          grpc::string(method->server_streaming() ? "stream_" : "unary_") +
+          grpc::string(method->ClientStreaming() ? "stream_" : "unary_") +
+          grpc::string(method->ServerStreaming() ? "stream_" : "unary_") +
           "inline";
       grpc::string input_message_module_and_class;
-      if (!GetModuleAndMessagePath(method->input_type(),
-                                   &input_message_module_and_class)) {
+      if (!method->get_module_and_message_path_input(
+              &input_message_module_and_class, generator_file_name,
+              generate_in_pb2_grpc, config.import_prefix)) {
         return false;
       }
       grpc::string output_message_module_and_class;
-      if (!GetModuleAndMessagePath(method->output_type(),
-                                   &output_message_module_and_class)) {
+      if (!method->get_module_and_message_path_output(
+              &output_message_module_and_class, generator_file_name,
+              generate_in_pb2_grpc, config.import_prefix)) {
         return false;
       }
       method_implementation_constructors.insert(
@@ -338,19 +237,21 @@
       output_message_modules_and_classes.insert(
           make_pair(method->name(), output_message_module_and_class));
     }
+    StringMap method_dict;
+    method_dict["PackageQualifiedServiceName"] = package_qualified_service_name;
     out->Print("request_deserializers = {\n");
     for (StringMap::iterator name_and_input_module_class_pair =
              input_message_modules_and_classes.begin();
          name_and_input_module_class_pair !=
          input_message_modules_and_classes.end();
          name_and_input_module_class_pair++) {
+      method_dict["MethodName"] = name_and_input_module_class_pair->first;
+      method_dict["InputTypeModuleAndClass"] =
+          name_and_input_module_class_pair->second;
       IndentScope raii_indent(out);
-      out->Print(
-          "(\'$PackageQualifiedServiceName$\', \'$MethodName$\'): "
-          "$InputTypeModuleAndClass$.FromString,\n",
-          "PackageQualifiedServiceName", package_qualified_service_name,
-          "MethodName", name_and_input_module_class_pair->first,
-          "InputTypeModuleAndClass", name_and_input_module_class_pair->second);
+      out->Print(method_dict,
+                 "(\'$PackageQualifiedServiceName$\', \'$MethodName$\'): "
+                 "$InputTypeModuleAndClass$.FromString,\n");
     }
     out->Print("}\n");
     out->Print("response_serializers = {\n");
@@ -359,14 +260,13 @@
          name_and_output_module_class_pair !=
          output_message_modules_and_classes.end();
          name_and_output_module_class_pair++) {
+      method_dict["MethodName"] = name_and_output_module_class_pair->first;
+      method_dict["OutputTypeModuleAndClass"] =
+          name_and_output_module_class_pair->second;
       IndentScope raii_indent(out);
-      out->Print(
-          "(\'$PackageQualifiedServiceName$\', \'$MethodName$\'): "
-          "$OutputTypeModuleAndClass$.SerializeToString,\n",
-          "PackageQualifiedServiceName", package_qualified_service_name,
-          "MethodName", name_and_output_module_class_pair->first,
-          "OutputTypeModuleAndClass",
-          name_and_output_module_class_pair->second);
+      out->Print(method_dict,
+                 "(\'$PackageQualifiedServiceName$\', \'$MethodName$\'): "
+                 "$OutputTypeModuleAndClass$.SerializeToString,\n");
     }
     out->Print("}\n");
     out->Print("method_implementations = {\n");
@@ -375,15 +275,14 @@
          name_and_implementation_constructor !=
          method_implementation_constructors.end();
          name_and_implementation_constructor++) {
+      method_dict["Method"] = name_and_implementation_constructor->first;
+      method_dict["Constructor"] = name_and_implementation_constructor->second;
       IndentScope raii_descriptions_indent(out);
       const grpc::string method_name =
           name_and_implementation_constructor->first;
-      out->Print(
-          "(\'$PackageQualifiedServiceName$\', \'$Method$\'): "
-          "face_utilities.$Constructor$(servicer.$Method$),\n",
-          "PackageQualifiedServiceName", package_qualified_service_name,
-          "Method", name_and_implementation_constructor->first, "Constructor",
-          name_and_implementation_constructor->second);
+      out->Print(method_dict,
+                 "(\'$PackageQualifiedServiceName$\', \'$Method$\'): "
+                 "face_utilities.$Constructor$(servicer.$Method$),\n");
     }
     out->Print("}\n");
     out->Print(
@@ -402,7 +301,7 @@
 
 bool PrivateGenerator::PrintBetaStubFactory(
     const grpc::string& package_qualified_service_name,
-    const ServiceDescriptor* service) {
+    const grpc_generator::Service* service, grpc_generator::Printer* out) {
   StringMap dict;
   dict["Service"] = service->name();
   out->Print("\n\n");
@@ -421,18 +320,20 @@
     StringMap input_message_modules_and_classes;
     StringMap output_message_modules_and_classes;
     for (int i = 0; i < service->method_count(); ++i) {
-      const MethodDescriptor* method = service->method(i);
+      auto method = service->method(i);
       const grpc::string method_cardinality =
-          grpc::string(method->client_streaming() ? "STREAM" : "UNARY") + "_" +
-          grpc::string(method->server_streaming() ? "STREAM" : "UNARY");
+          grpc::string(method->ClientStreaming() ? "STREAM" : "UNARY") + "_" +
+          grpc::string(method->ServerStreaming() ? "STREAM" : "UNARY");
       grpc::string input_message_module_and_class;
-      if (!GetModuleAndMessagePath(method->input_type(),
-                                   &input_message_module_and_class)) {
+      if (!method->get_module_and_message_path_input(
+              &input_message_module_and_class, generator_file_name,
+              generate_in_pb2_grpc, config.import_prefix)) {
         return false;
       }
       grpc::string output_message_module_and_class;
-      if (!GetModuleAndMessagePath(method->output_type(),
-                                   &output_message_module_and_class)) {
+      if (!method->get_module_and_message_path_output(
+              &output_message_module_and_class, generator_file_name,
+              generate_in_pb2_grpc, config.import_prefix)) {
         return false;
       }
       method_cardinalities.insert(
@@ -442,19 +343,21 @@
       output_message_modules_and_classes.insert(
           make_pair(method->name(), output_message_module_and_class));
     }
+    StringMap method_dict;
+    method_dict["PackageQualifiedServiceName"] = package_qualified_service_name;
     out->Print("request_serializers = {\n");
     for (StringMap::iterator name_and_input_module_class_pair =
              input_message_modules_and_classes.begin();
          name_and_input_module_class_pair !=
          input_message_modules_and_classes.end();
          name_and_input_module_class_pair++) {
+      method_dict["MethodName"] = name_and_input_module_class_pair->first;
+      method_dict["InputTypeModuleAndClass"] =
+          name_and_input_module_class_pair->second;
       IndentScope raii_indent(out);
-      out->Print(
-          "(\'$PackageQualifiedServiceName$\', \'$MethodName$\'): "
-          "$InputTypeModuleAndClass$.SerializeToString,\n",
-          "PackageQualifiedServiceName", package_qualified_service_name,
-          "MethodName", name_and_input_module_class_pair->first,
-          "InputTypeModuleAndClass", name_and_input_module_class_pair->second);
+      out->Print(method_dict,
+                 "(\'$PackageQualifiedServiceName$\', \'$MethodName$\'): "
+                 "$InputTypeModuleAndClass$.SerializeToString,\n");
     }
     out->Print("}\n");
     out->Print("response_deserializers = {\n");
@@ -463,14 +366,13 @@
          name_and_output_module_class_pair !=
          output_message_modules_and_classes.end();
          name_and_output_module_class_pair++) {
+      method_dict["MethodName"] = name_and_output_module_class_pair->first;
+      method_dict["OutputTypeModuleAndClass"] =
+          name_and_output_module_class_pair->second;
       IndentScope raii_indent(out);
-      out->Print(
-          "(\'$PackageQualifiedServiceName$\', \'$MethodName$\'): "
-          "$OutputTypeModuleAndClass$.FromString,\n",
-          "PackageQualifiedServiceName", package_qualified_service_name,
-          "MethodName", name_and_output_module_class_pair->first,
-          "OutputTypeModuleAndClass",
-          name_and_output_module_class_pair->second);
+      out->Print(method_dict,
+                 "(\'$PackageQualifiedServiceName$\', \'$MethodName$\'): "
+                 "$OutputTypeModuleAndClass$.FromString,\n");
     }
     out->Print("}\n");
     out->Print("cardinalities = {\n");
@@ -478,10 +380,11 @@
              method_cardinalities.begin();
          name_and_cardinality != method_cardinalities.end();
          name_and_cardinality++) {
+      method_dict["Method"] = name_and_cardinality->first;
+      method_dict["Cardinality"] = name_and_cardinality->second;
       IndentScope raii_descriptions_indent(out);
-      out->Print("\'$Method$\': cardinality.Cardinality.$Cardinality$,\n",
-                 "Method", name_and_cardinality->first, "Cardinality",
-                 name_and_cardinality->second);
+      out->Print(method_dict,
+                 "\'$Method$\': cardinality.Cardinality.$Cardinality$,\n");
     }
     out->Print("}\n");
     out->Print(
@@ -490,23 +393,25 @@
         "request_serializers=request_serializers, "
         "response_deserializers=response_deserializers, "
         "thread_pool=pool, thread_pool_size=pool_size)\n");
-    out->Print(
-        "return beta_implementations.dynamic_stub(channel, "
-        "\'$PackageQualifiedServiceName$\', "
-        "cardinalities, options=stub_options)\n",
-        "PackageQualifiedServiceName", package_qualified_service_name);
+    out->Print(method_dict,
+               "return beta_implementations.dynamic_stub(channel, "
+               "\'$PackageQualifiedServiceName$\', "
+               "cardinalities, options=stub_options)\n");
   }
   return true;
 }
 
 bool PrivateGenerator::PrintStub(
     const grpc::string& package_qualified_service_name,
-    const ServiceDescriptor* service) {
+    const grpc_generator::Service* service, grpc_generator::Printer* out) {
+  StringMap dict;
+  dict["Service"] = service->name();
   out->Print("\n\n");
-  out->Print("class $Service$Stub(object):\n", "Service", service->name());
+  out->Print(dict, "class $Service$Stub(object):\n");
   {
     IndentScope raii_class_indent(out);
-    PrintAllComments(service);
+    StringVector service_comments = service->GetAllComments();
+    PrintAllComments(service_comments, out);
     out->Print("\n");
     out->Print("def __init__(self, channel):\n");
     {
@@ -520,35 +425,41 @@
       }
       out->Print("\"\"\"\n");
       for (int i = 0; i < service->method_count(); ++i) {
-        const MethodDescriptor* method = service->method(i);
+        auto method = service->method(i);
         grpc::string multi_callable_constructor =
-            grpc::string(method->client_streaming() ? "stream" : "unary") +
-            "_" + grpc::string(method->server_streaming() ? "stream" : "unary");
+            grpc::string(method->ClientStreaming() ? "stream" : "unary") + "_" +
+            grpc::string(method->ServerStreaming() ? "stream" : "unary");
         grpc::string request_module_and_class;
-        if (!GetModuleAndMessagePath(method->input_type(),
-                                     &request_module_and_class)) {
+        if (!method->get_module_and_message_path_input(
+                &request_module_and_class, generator_file_name,
+                generate_in_pb2_grpc, config.import_prefix)) {
           return false;
         }
         grpc::string response_module_and_class;
-        if (!GetModuleAndMessagePath(method->output_type(),
-                                     &response_module_and_class)) {
+        if (!method->get_module_and_message_path_output(
+                &response_module_and_class, generator_file_name,
+                generate_in_pb2_grpc, config.import_prefix)) {
           return false;
         }
-        out->Print("self.$Method$ = channel.$MultiCallableConstructor$(\n",
-                   "Method", method->name(), "MultiCallableConstructor",
-                   multi_callable_constructor);
+        StringMap method_dict;
+        method_dict["Method"] = method->name();
+        method_dict["MultiCallableConstructor"] = multi_callable_constructor;
+        out->Print(method_dict,
+                   "self.$Method$ = channel.$MultiCallableConstructor$(\n");
         {
+          method_dict["PackageQualifiedService"] =
+              package_qualified_service_name;
+          method_dict["RequestModuleAndClass"] = request_module_and_class;
+          method_dict["ResponseModuleAndClass"] = response_module_and_class;
           IndentScope raii_first_attribute_indent(out);
           IndentScope raii_second_attribute_indent(out);
-          out->Print("'/$PackageQualifiedService$/$Method$',\n",
-                     "PackageQualifiedService", package_qualified_service_name,
-                     "Method", method->name());
+          out->Print(method_dict, "'/$PackageQualifiedService$/$Method$',\n");
+          out->Print(method_dict,
+                     "request_serializer=$RequestModuleAndClass$."
+                     "SerializeToString,\n");
           out->Print(
-              "request_serializer=$RequestModuleAndClass$.SerializeToString,\n",
-              "RequestModuleAndClass", request_module_and_class);
-          out->Print(
-              "response_deserializer=$ResponseModuleAndClass$.FromString,\n",
-              "ResponseModuleAndClass", response_module_and_class);
+              method_dict,
+              "response_deserializer=$ResponseModuleAndClass$.FromString,\n");
           out->Print(")\n");
         }
       }
@@ -557,22 +468,29 @@
   return true;
 }
 
-bool PrivateGenerator::PrintServicer(const ServiceDescriptor* service) {
+bool PrivateGenerator::PrintServicer(const grpc_generator::Service* service,
+                                     grpc_generator::Printer* out) {
+  StringMap service_dict;
+  service_dict["Service"] = service->name();
   out->Print("\n\n");
-  out->Print("class $Service$Servicer(object):\n", "Service", service->name());
+  out->Print(service_dict, "class $Service$Servicer(object):\n");
   {
     IndentScope raii_class_indent(out);
-    PrintAllComments(service);
+    StringVector service_comments = service->GetAllComments();
+    PrintAllComments(service_comments, out);
     for (int i = 0; i < service->method_count(); ++i) {
-      const MethodDescriptor* method = service->method(i);
+      auto method = service->method(i);
       grpc::string arg_name =
-          method->client_streaming() ? "request_iterator" : "request";
+          method->ClientStreaming() ? "request_iterator" : "request";
+      StringMap method_dict;
+      method_dict["Method"] = method->name();
+      method_dict["ArgName"] = arg_name;
       out->Print("\n");
-      out->Print("def $Method$(self, $ArgName$, context):\n", "Method",
-                 method->name(), "ArgName", arg_name);
+      out->Print(method_dict, "def $Method$(self, $ArgName$, context):\n");
       {
         IndentScope raii_method_indent(out);
-        PrintAllComments(method);
+        StringVector method_comments = method->GetAllComments();
+        PrintAllComments(method_comments, out);
         out->Print("context.set_code(grpc.StatusCode.UNIMPLEMENTED)\n");
         out->Print("context.set_details('Method not implemented!')\n");
         out->Print("raise NotImplementedError('Method not implemented!')\n");
@@ -584,10 +502,12 @@
 
 bool PrivateGenerator::PrintAddServicerToServer(
     const grpc::string& package_qualified_service_name,
-    const ServiceDescriptor* service) {
+    const grpc_generator::Service* service, grpc_generator::Printer* out) {
+  StringMap service_dict;
+  service_dict["Service"] = service->name();
   out->Print("\n\n");
-  out->Print("def add_$Service$Servicer_to_server(servicer, server):\n",
-             "Service", service->name());
+  out->Print(service_dict,
+             "def add_$Service$Servicer_to_server(servicer, server):\n");
   {
     IndentScope raii_class_indent(out);
     out->Print("rpc_method_handlers = {\n");
@@ -595,58 +515,66 @@
       IndentScope raii_dict_first_indent(out);
       IndentScope raii_dict_second_indent(out);
       for (int i = 0; i < service->method_count(); ++i) {
-        const MethodDescriptor* method = service->method(i);
+        auto method = service->method(i);
         grpc::string method_handler_constructor =
-            grpc::string(method->client_streaming() ? "stream" : "unary") +
-            "_" +
-            grpc::string(method->server_streaming() ? "stream" : "unary") +
+            grpc::string(method->ClientStreaming() ? "stream" : "unary") + "_" +
+            grpc::string(method->ServerStreaming() ? "stream" : "unary") +
             "_rpc_method_handler";
         grpc::string request_module_and_class;
-        if (!GetModuleAndMessagePath(method->input_type(),
-                                     &request_module_and_class)) {
+        if (!method->get_module_and_message_path_input(
+                &request_module_and_class, generator_file_name,
+                generate_in_pb2_grpc, config.import_prefix)) {
           return false;
         }
         grpc::string response_module_and_class;
-        if (!GetModuleAndMessagePath(method->output_type(),
-                                     &response_module_and_class)) {
+        if (!method->get_module_and_message_path_output(
+                &response_module_and_class, generator_file_name,
+                generate_in_pb2_grpc, config.import_prefix)) {
           return false;
         }
-        out->Print("'$Method$': grpc.$MethodHandlerConstructor$(\n", "Method",
-                   method->name(), "MethodHandlerConstructor",
-                   method_handler_constructor);
+        StringMap method_dict;
+        method_dict["Method"] = method->name();
+        method_dict["MethodHandlerConstructor"] = method_handler_constructor;
+        method_dict["RequestModuleAndClass"] = request_module_and_class;
+        method_dict["ResponseModuleAndClass"] = response_module_and_class;
+        out->Print(method_dict,
+                   "'$Method$': grpc.$MethodHandlerConstructor$(\n");
         {
           IndentScope raii_call_first_indent(out);
           IndentScope raii_call_second_indent(out);
-          out->Print("servicer.$Method$,\n", "Method", method->name());
+          out->Print(method_dict, "servicer.$Method$,\n");
           out->Print(
-              "request_deserializer=$RequestModuleAndClass$.FromString,\n",
-              "RequestModuleAndClass", request_module_and_class);
+              method_dict,
+              "request_deserializer=$RequestModuleAndClass$.FromString,\n");
           out->Print(
+              method_dict,
               "response_serializer=$ResponseModuleAndClass$.SerializeToString,"
-              "\n",
-              "ResponseModuleAndClass", response_module_and_class);
+              "\n");
         }
         out->Print("),\n");
       }
     }
+    StringMap method_dict;
+    method_dict["PackageQualifiedServiceName"] = package_qualified_service_name;
     out->Print("}\n");
     out->Print("generic_handler = grpc.method_handlers_generic_handler(\n");
     {
       IndentScope raii_call_first_indent(out);
       IndentScope raii_call_second_indent(out);
-      out->Print("'$PackageQualifiedServiceName$', rpc_method_handlers)\n",
-                 "PackageQualifiedServiceName", package_qualified_service_name);
+      out->Print(method_dict,
+                 "'$PackageQualifiedServiceName$', rpc_method_handlers)\n");
     }
     out->Print("server.add_generic_rpc_handlers((generic_handler,))\n");
   }
   return true;
 }
 
-bool PrivateGenerator::PrintBetaPreamble() {
-  out->Print("from $Package$ import implementations as beta_implementations\n",
-             "Package", config.beta_package_root);
-  out->Print("from $Package$ import interfaces as beta_interfaces\n", "Package",
-             config.beta_package_root);
+bool PrivateGenerator::PrintBetaPreamble(grpc_generator::Printer* out) {
+  StringMap var;
+  var["Package"] = config.beta_package_root;
+  out->Print(var,
+             "from $Package$ import implementations as beta_implementations\n");
+  out->Print(var, "from $Package$ import interfaces as beta_interfaces\n");
   out->Print("from grpc.framework.common import cardinality\n");
   out->Print(
       "from grpc.framework.interfaces.face import utilities as "
@@ -654,65 +582,78 @@
   return true;
 }
 
-bool PrivateGenerator::PrintPreamble() {
-  out->Print("import $Package$\n", "Package", config.grpc_package_root);
+bool PrivateGenerator::PrintPreamble(grpc_generator::Printer* out) {
+  StringMap var;
+  var["Package"] = config.grpc_package_root;
+  out->Print(var, "import $Package$\n");
   if (generate_in_pb2_grpc) {
     out->Print("\n");
     StringPairSet imports_set;
     for (int i = 0; i < file->service_count(); ++i) {
-      const ServiceDescriptor* service = file->service(i);
+      auto service = file->service(i);
       for (int j = 0; j < service->method_count(); ++j) {
-        const MethodDescriptor* method = service->method(j);
-        const Descriptor* types[2] = {method->input_type(),
-                                      method->output_type()};
-        for (int k = 0; k < 2; ++k) {
-          const Descriptor* type = types[k];
-          grpc::string type_file_name = type->file()->name();
-          grpc::string module_name =
-              ModuleName(type_file_name, config.import_prefix);
-          grpc::string module_alias =
-              ModuleAlias(type_file_name, config.import_prefix);
-          imports_set.insert(std::make_tuple(module_name, module_alias));
-        }
+        auto method = service.get()->method(j);
+
+        grpc::string input_type_file_name = method->get_input_type_name();
+        grpc::string input_module_name =
+            ModuleName(input_type_file_name, config.import_prefix);
+        grpc::string input_module_alias =
+            ModuleAlias(input_type_file_name, config.import_prefix);
+        imports_set.insert(
+            std::make_tuple(input_module_name, input_module_alias));
+
+        grpc::string output_type_file_name = method->get_output_type_name();
+        grpc::string output_module_name =
+            ModuleName(output_type_file_name, config.import_prefix);
+        grpc::string output_module_alias =
+            ModuleAlias(output_type_file_name, config.import_prefix);
+        imports_set.insert(
+            std::make_tuple(output_module_name, output_module_alias));
       }
     }
+
     for (StringPairSet::iterator it = imports_set.begin();
          it != imports_set.end(); ++it) {
-      out->Print("import $ModuleName$ as $ModuleAlias$\n", "ModuleName",
-                 std::get<0>(*it), "ModuleAlias", std::get<1>(*it));
+      var["ModuleName"] = std::get<0>(*it);
+      var["ModuleAlias"] = std::get<1>(*it);
+      out->Print(var, "import $ModuleName$ as $ModuleAlias$\n");
     }
   }
   return true;
 }
 
-bool PrivateGenerator::PrintGAServices() {
+bool PrivateGenerator::PrintGAServices(grpc_generator::Printer* out) {
   grpc::string package = file->package();
   if (!package.empty()) {
     package = package.append(".");
   }
   for (int i = 0; i < file->service_count(); ++i) {
-    const ServiceDescriptor* service = file->service(i);
+    auto service = file->service(i);
     grpc::string package_qualified_service_name = package + service->name();
-    if (!(PrintStub(package_qualified_service_name, service) &&
-          PrintServicer(service) &&
-          PrintAddServicerToServer(package_qualified_service_name, service))) {
+    if (!(PrintStub(package_qualified_service_name, service.get(), out) &&
+          PrintServicer(service.get(), out) &&
+          PrintAddServicerToServer(package_qualified_service_name,
+                                   service.get(), out))) {
       return false;
     }
   }
   return true;
 }
 
-bool PrivateGenerator::PrintBetaServices() {
+bool PrivateGenerator::PrintBetaServices(grpc_generator::Printer* out) {
   grpc::string package = file->package();
   if (!package.empty()) {
     package = package.append(".");
   }
   for (int i = 0; i < file->service_count(); ++i) {
-    const ServiceDescriptor* service = file->service(i);
+    auto service = file->service(i);
     grpc::string package_qualified_service_name = package + service->name();
-    if (!(PrintBetaServicer(service) && PrintBetaStub(service) &&
-          PrintBetaServerFactory(package_qualified_service_name, service) &&
-          PrintBetaStubFactory(package_qualified_service_name, service))) {
+    if (!(PrintBetaServicer(service.get(), out) &&
+          PrintBetaStub(service.get(), out) &&
+          PrintBetaServerFactory(package_qualified_service_name, service.get(),
+                                 out) &&
+          PrintBetaStubFactory(package_qualified_service_name, service.get(),
+                               out))) {
       return false;
     }
   }
@@ -723,43 +664,40 @@
   grpc::string output;
   {
     // Scope the output stream so it closes and finalizes output to the string.
-    StringOutputStream output_stream(&output);
-    Printer out_printer(&output_stream, '$');
-    out = &out_printer;
-
+    auto out = file->CreatePrinter(&output);
     if (generate_in_pb2_grpc) {
       out->Print(
           "# Generated by the gRPC Python protocol compiler plugin. "
           "DO NOT EDIT!\n");
-      if (!PrintPreamble()) {
+      if (!PrintPreamble(out.get())) {
         return make_pair(false, "");
       }
-      if (!PrintGAServices()) {
+      if (!PrintGAServices(out.get())) {
         return make_pair(false, "");
       }
     } else {
       out->Print("try:\n");
       {
-        IndentScope raii_dict_try_indent(out);
+        IndentScope raii_dict_try_indent(out.get());
         out->Print(
             "# THESE ELEMENTS WILL BE DEPRECATED.\n"
             "# Please use the generated *_pb2_grpc.py files instead.\n");
-        if (!PrintPreamble()) {
+        if (!PrintPreamble(out.get())) {
           return make_pair(false, "");
         }
-        if (!PrintBetaPreamble()) {
+        if (!PrintBetaPreamble(out.get())) {
           return make_pair(false, "");
         }
-        if (!PrintGAServices()) {
+        if (!PrintGAServices(out.get())) {
           return make_pair(false, "");
         }
-        if (!PrintBetaServices()) {
+        if (!PrintBetaServices(out.get())) {
           return make_pair(false, "");
         }
       }
       out->Print("except ImportError:\n");
       {
-        IndentScope raii_dict_except_indent(out);
+        IndentScope raii_dict_except_indent(out.get());
         out->Print("pass");
       }
     }
@@ -823,8 +761,10 @@
     *error = "Invalid proto file name. Proto file must end with .proto";
     return false;
   }
+  generator_file_name = file->name();
 
-  PrivateGenerator generator(config_, file);
+  ProtoBufFile pbfile(file);
+  PrivateGenerator generator(config_, &pbfile);
   if (parameter == "grpc_2_0") {
     return GenerateGrpc(context, generator, pb2_grpc_file_name, true);
   } else if (parameter == "") {
diff --git a/src/compiler/python_generator.h b/src/compiler/python_generator.h
index b91059f..0c0d744 100644
--- a/src/compiler/python_generator.h
+++ b/src/compiler/python_generator.h
@@ -37,6 +37,7 @@
 #include <utility>
 
 #include "src/compiler/config.h"
+#include "src/compiler/schema_interface.h"
 
 namespace grpc_python_generator {
 
diff --git a/src/compiler/python_generator_helpers.h b/src/compiler/python_generator_helpers.h
new file mode 100644
index 0000000..9fca711
--- /dev/null
+++ b/src/compiler/python_generator_helpers.h
@@ -0,0 +1,142 @@
+/*
+ *
+ * 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_INTERNAL_COMPILER_PYTHON_GENERATOR_HELPERS_H
+#define GRPC_INTERNAL_COMPILER_PYTHON_GENERATOR_HELPERS_H
+
+#include <cstring>
+#include <fstream>
+#include <iostream>
+#include <vector>
+
+#include "src/compiler/config.h"
+#include "src/compiler/generator_helpers.h"
+#include "src/compiler/python_generator.h"
+#include "src/compiler/python_private_generator.h"
+
+using std::vector;
+using grpc_generator::StringReplace;
+using grpc_generator::StripProto;
+using grpc::protobuf::Descriptor;
+using grpc::protobuf::FileDescriptor;
+using grpc::protobuf::MethodDescriptor;
+using grpc::protobuf::ServiceDescriptor;
+using grpc::protobuf::compiler::GeneratorContext;
+using grpc::protobuf::io::CodedOutputStream;
+using grpc::protobuf::io::Printer;
+using grpc::protobuf::io::StringOutputStream;
+using grpc::protobuf::io::ZeroCopyOutputStream;
+
+namespace grpc_python_generator {
+
+namespace {
+
+typedef vector<const Descriptor*> DescriptorVector;
+typedef vector<grpc::string> StringVector;
+
+// TODO(https://github.com/google/protobuf/issues/888):
+// Export `ModuleName` from protobuf's
+// `src/google/protobuf/compiler/python/python_generator.cc` file.
+grpc::string ModuleName(const grpc::string& filename,
+                        const grpc::string& import_prefix) {
+  grpc::string basename = StripProto(filename);
+  basename = StringReplace(basename, "-", "_");
+  basename = StringReplace(basename, "/", ".");
+  return import_prefix + basename + "_pb2";
+}
+
+// TODO(https://github.com/google/protobuf/issues/888):
+// Export `ModuleAlias` from protobuf's
+// `src/google/protobuf/compiler/python/python_generator.cc` file.
+grpc::string ModuleAlias(const grpc::string& filename,
+                         const grpc::string& import_prefix) {
+  grpc::string module_name = ModuleName(filename, import_prefix);
+  // We can't have dots in the module name, so we replace each with _dot_.
+  // But that could lead to a collision between a.b and a_dot_b, so we also
+  // duplicate each underscore.
+  module_name = StringReplace(module_name, "_", "__");
+  module_name = StringReplace(module_name, ".", "_dot_");
+  return module_name;
+}
+
+bool GetModuleAndMessagePath(const Descriptor* type, grpc::string* out,
+                             grpc::string generator_file_name,
+                             bool generate_in_pb2_grpc,
+                             grpc::string& import_prefix) {
+  const Descriptor* path_elem_type = type;
+  DescriptorVector message_path;
+  do {
+    message_path.push_back(path_elem_type);
+    path_elem_type = path_elem_type->containing_type();
+  } while (path_elem_type);  // implicit nullptr comparison; don't be explicit
+  grpc::string file_name = type->file()->name();
+  static const int proto_suffix_length = strlen(".proto");
+  if (!(file_name.size() > static_cast<size_t>(proto_suffix_length) &&
+        file_name.find_last_of(".proto") == file_name.size() - 1)) {
+    return false;
+  }
+
+  grpc::string module;
+  if (generator_file_name != file_name || generate_in_pb2_grpc) {
+    module = ModuleAlias(file_name, import_prefix) + ".";
+  } else {
+    module = "";
+  }
+  grpc::string message_type;
+  for (DescriptorVector::reverse_iterator path_iter = message_path.rbegin();
+       path_iter != message_path.rend(); ++path_iter) {
+    message_type += (*path_iter)->name() + ".";
+  }
+  // no pop_back prior to C++11
+  message_type.resize(message_type.size() - 1);
+  *out = module + message_type;
+  return true;
+}
+
+template <typename DescriptorType>
+StringVector get_all_comments(const DescriptorType* descriptor) {
+  StringVector comments;
+  grpc_generator::GetComment(
+      descriptor, grpc_generator::COMMENTTYPE_LEADING_DETACHED, &comments);
+  grpc_generator::GetComment(descriptor, grpc_generator::COMMENTTYPE_LEADING,
+                             &comments);
+  grpc_generator::GetComment(descriptor, grpc_generator::COMMENTTYPE_TRAILING,
+                             &comments);
+  return comments;
+}
+
+}  // namespace
+
+}  // namespace grpc_python_generator
+
+#endif  // GRPC_INTERNAL_COMPILER_PYTHON_GENERATOR_HELPERS_H
diff --git a/src/compiler/python_plugin.cc b/src/compiler/python_plugin.cc
index 3457aa6..f34abcc 100644
--- a/src/compiler/python_plugin.cc
+++ b/src/compiler/python_plugin.cc
@@ -34,6 +34,7 @@
 // Generates a Python gRPC service interface out of Protobuf IDL.
 
 #include "src/compiler/config.h"
+#include "src/compiler/protobuf_plugin.h"
 #include "src/compiler/python_generator.h"
 
 int main(int argc, char* argv[]) {
diff --git a/src/compiler/python_private_generator.h b/src/compiler/python_private_generator.h
new file mode 100644
index 0000000..d20ff51
--- /dev/null
+++ b/src/compiler/python_private_generator.h
@@ -0,0 +1,99 @@
+/*
+ *
+ * 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_INTERNAL_COMPILER_PYTHON_PRIVATE_GENERATOR_H
+#define GRPC_INTERNAL_COMPILER_PYTHON_PRIVATE_GENERATOR_H
+
+#include <iostream>
+#include <vector>
+
+#include "src/compiler/python_generator.h"
+#include "src/compiler/schema_interface.h"
+
+namespace grpc_python_generator {
+
+namespace {
+
+// Tucks all generator state in an anonymous namespace away from
+// PythonGrpcGenerator and the header file, mostly to encourage future changes
+// to not require updates to the grpcio-tools C++ code part. Assumes that it is
+// only ever used from a single thread.
+struct PrivateGenerator {
+  const GeneratorConfiguration& config;
+  const grpc_generator::File* file;
+
+  bool generate_in_pb2_grpc;
+
+  PrivateGenerator(const GeneratorConfiguration& config,
+                   const grpc_generator::File* file);
+
+  std::pair<bool, grpc::string> GetGrpcServices();
+
+ private:
+  bool PrintPreamble(grpc_generator::Printer* out);
+  bool PrintBetaPreamble(grpc_generator::Printer* out);
+  bool PrintGAServices(grpc_generator::Printer* out);
+  bool PrintBetaServices(grpc_generator::Printer* out);
+
+  bool PrintAddServicerToServer(
+      const grpc::string& package_qualified_service_name,
+      const grpc_generator::Service* service, grpc_generator::Printer* out);
+  bool PrintServicer(const grpc_generator::Service* service,
+                     grpc_generator::Printer* out);
+  bool PrintStub(const grpc::string& package_qualified_service_name,
+                 const grpc_generator::Service* service,
+                 grpc_generator::Printer* out);
+
+  bool PrintBetaServicer(const grpc_generator::Service* service,
+                         grpc_generator::Printer* out);
+  bool PrintBetaServerFactory(
+      const grpc::string& package_qualified_service_name,
+      const grpc_generator::Service* service, grpc_generator::Printer* out);
+  bool PrintBetaStub(const grpc_generator::Service* service,
+                     grpc_generator::Printer* out);
+  bool PrintBetaStubFactory(const grpc::string& package_qualified_service_name,
+                            const grpc_generator::Service* service,
+                            grpc_generator::Printer* out);
+
+  // Get all comments (leading, leading_detached, trailing) and print them as a
+  // docstring. Any leading space of a line will be removed, but the line
+  // wrapping will not be changed.
+  void PrintAllComments(std::vector<grpc::string> comments,
+                        grpc_generator::Printer* out);
+};
+
+}  // namespace
+
+}  // namespace grpc_python_generator
+
+#endif  // GRPC_INTERNAL_COMPILER_PYTHON_PRIVATE_GENERATOR_H
diff --git a/src/compiler/schema_interface.h b/src/compiler/schema_interface.h
new file mode 100644
index 0000000..25bbdb5
--- /dev/null
+++ b/src/compiler/schema_interface.h
@@ -0,0 +1,126 @@
+/*
+ *
+ * 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_INTERNAL_COMPILER_SCHEMA_INTERFACE_H
+#define GRPC_INTERNAL_COMPILER_SCHEMA_INTERFACE_H
+
+#include "src/compiler/config.h"
+
+#include <memory>
+#include <vector>
+
+#ifndef GRPC_CUSTOM_STRING
+#include <string>
+#define GRPC_CUSTOM_STRING std::string
+#endif
+
+namespace grpc {
+
+typedef GRPC_CUSTOM_STRING string;
+
+}  // namespace grpc
+
+namespace grpc_generator {
+
+// A common interface for objects having comments in the source.
+// Return formatted comments to be inserted in generated code.
+struct CommentHolder {
+  virtual ~CommentHolder() {}
+  virtual grpc::string GetLeadingComments(const grpc::string prefix) const = 0;
+  virtual grpc::string GetTrailingComments(const grpc::string prefix) const = 0;
+  virtual std::vector<grpc::string> GetAllComments() const = 0;
+};
+
+// An abstract interface representing a method.
+struct Method : public CommentHolder {
+  virtual ~Method() {}
+
+  virtual grpc::string name() const = 0;
+
+  virtual grpc::string input_type_name() const = 0;
+  virtual grpc::string output_type_name() const = 0;
+
+  virtual bool get_module_and_message_path_input(
+      grpc::string *str, grpc::string generator_file_name,
+      bool generate_in_pb2_grpc, grpc::string import_prefix) const = 0;
+  virtual bool get_module_and_message_path_output(
+      grpc::string *str, grpc::string generator_file_name,
+      bool generate_in_pb2_grpc, grpc::string import_prefix) const = 0;
+
+  virtual grpc::string get_input_type_name() const = 0;
+  virtual grpc::string get_output_type_name() const = 0;
+  virtual bool NoStreaming() const = 0;
+  virtual bool ClientStreaming() const = 0;
+  virtual bool ServerStreaming() const = 0;
+  virtual bool BidiStreaming() const = 0;
+};
+
+// An abstract interface representing a service.
+struct Service : public CommentHolder {
+  virtual ~Service() {}
+
+  virtual grpc::string name() const = 0;
+
+  virtual int method_count() const = 0;
+  virtual std::unique_ptr<const Method> method(int i) const = 0;
+};
+
+struct Printer {
+  virtual ~Printer() {}
+
+  virtual void Print(const std::map<grpc::string, grpc::string> &vars,
+                     const char *template_string) = 0;
+  virtual void Print(const char *string) = 0;
+  virtual void Indent() = 0;
+  virtual void Outdent() = 0;
+};
+
+// An interface that allows the source generated to be output using various
+// libraries/idls/serializers.
+struct File : public CommentHolder {
+  virtual ~File() {}
+
+  virtual grpc::string filename() const = 0;
+  virtual grpc::string filename_without_ext() const = 0;
+  virtual grpc::string package() const = 0;
+  virtual std::vector<grpc::string> package_parts() const = 0;
+  virtual grpc::string additional_headers() const = 0;
+
+  virtual int service_count() const = 0;
+  virtual std::unique_ptr<const Service> service(int i) const = 0;
+
+  virtual std::unique_ptr<Printer> CreatePrinter(grpc::string *str) const = 0;
+};
+}  // namespace grpc_generator
+
+#endif  // GRPC_INTERNAL_COMPILER_SCHEMA_INTERFACE_H
diff --git a/src/core/ext/census/gen/trace_context.pb.h b/src/core/ext/census/gen/trace_context.pb.h
index ea127bf..6fafc04 100644
--- a/src/core/ext/census/gen/trace_context.pb.h
+++ b/src/core/ext/census/gen/trace_context.pb.h
@@ -90,4 +90,4 @@
 #endif
 /* @@protoc_insertion_point(eof) */
 
-#endif
+#endif /* GRPC_CORE_EXT_CENSUS_GEN_TRACE_CONTEXT_PB_H */
diff --git a/src/core/ext/census/grpc_plugin.c b/src/core/ext/census/grpc_plugin.c
index c9fe453..28d266e 100644
--- a/src/core/ext/census/grpc_plugin.c
+++ b/src/core/ext/census/grpc_plugin.c
@@ -48,7 +48,7 @@
       return a->args[i].value.integer != 0 && census_enabled();
     }
   }
-  return census_enabled();
+  return census_enabled() && !grpc_channel_args_want_minimal_stack(a);
 }
 
 static bool maybe_add_census_filter(grpc_exec_ctx *exec_ctx,
diff --git a/src/core/ext/census/trace_label.h b/src/core/ext/census/trace_label.h
index 0e4a8d8..701f6f5 100644
--- a/src/core/ext/census/trace_label.h
+++ b/src/core/ext/census/trace_label.h
@@ -58,4 +58,4 @@
   } value;
 } trace_label;
 
-#endif
+#endif /* GRPC_CORE_EXT_CENSUS_TRACE_LABEL_H */
diff --git a/src/core/ext/census/trace_propagation.h b/src/core/ext/census/trace_propagation.h
index 75c4eba..0c27bfa 100644
--- a/src/core/ext/census/trace_propagation.h
+++ b/src/core/ext/census/trace_propagation.h
@@ -60,4 +60,4 @@
 size_t http_format_to_trace_span_context(const char *buf, size_t buf_size,
                                          trace_span_context *ctxt);
 
-#endif
+#endif /* GRPC_CORE_EXT_CENSUS_TRACE_PROPAGATION_H */
diff --git a/src/core/ext/census/trace_status.h b/src/core/ext/census/trace_status.h
index adc0ebd..0734ec6 100644
--- a/src/core/ext/census/trace_status.h
+++ b/src/core/ext/census/trace_status.h
@@ -42,4 +42,4 @@
   trace_string errorMessage;
 } trace_status;
 
-#endif
+#endif /* GRPC_CORE_EXT_CENSUS_TRACE_STATUS_H */
diff --git a/src/core/ext/census/trace_string.h b/src/core/ext/census/trace_string.h
index 8e77ee9..cd63cfb 100644
--- a/src/core/ext/census/trace_string.h
+++ b/src/core/ext/census/trace_string.h
@@ -47,4 +47,4 @@
   size_t length;
 } trace_string;
 
-#endif
+#endif /* GRPC_CORE_EXT_CENSUS_TRACE_STRING_H */
diff --git a/src/core/ext/census/tracing.h b/src/core/ext/census/tracing.h
index c2b947a..3a7c6f4 100644
--- a/src/core/ext/census/tracing.h
+++ b/src/core/ext/census/tracing.h
@@ -121,4 +121,4 @@
 optionally be NULL. */
 void trace_end_span(const trace_status *status, trace_span_context *span_ctxt);
 
-#endif
+#endif /* GRPC_CORE_EXT_CENSUS_TRACING_H */
diff --git a/src/core/ext/client_channel/README.md b/src/core/ext/filters/client_channel/README.md
similarity index 100%
rename from src/core/ext/client_channel/README.md
rename to src/core/ext/filters/client_channel/README.md
diff --git a/src/core/ext/client_channel/channel_connectivity.c b/src/core/ext/filters/client_channel/channel_connectivity.c
similarity index 98%
rename from src/core/ext/client_channel/channel_connectivity.c
rename to src/core/ext/filters/client_channel/channel_connectivity.c
index f6cb3b9..62f58fb 100644
--- a/src/core/ext/client_channel/channel_connectivity.c
+++ b/src/core/ext/filters/client_channel/channel_connectivity.c
@@ -36,7 +36,7 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 
-#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_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"
diff --git a/src/core/ext/client_channel/client_channel.c b/src/core/ext/filters/client_channel/client_channel.c
similarity index 98%
rename from src/core/ext/client_channel/client_channel.c
rename to src/core/ext/filters/client_channel/client_channel.c
index 477d0e7..93ad53a 100644
--- a/src/core/ext/client_channel/client_channel.c
+++ b/src/core/ext/filters/client_channel/client_channel.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
 
 #include <stdbool.h>
 #include <stdio.h>
@@ -43,12 +43,12 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/useful.h>
 
-#include "src/core/ext/client_channel/http_connect_handshaker.h"
-#include "src/core/ext/client_channel/lb_policy_registry.h"
-#include "src/core/ext/client_channel/proxy_mapper_registry.h"
-#include "src/core/ext/client_channel/resolver_registry.h"
-#include "src/core/ext/client_channel/retry_throttle.h"
-#include "src/core/ext/client_channel/subchannel.h"
+#include "src/core/ext/filters/client_channel/http_connect_handshaker.h"
+#include "src/core/ext/filters/client_channel/lb_policy_registry.h"
+#include "src/core/ext/filters/client_channel/proxy_mapper_registry.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
+#include "src/core/ext/filters/client_channel/retry_throttle.h"
+#include "src/core/ext/filters/client_channel/subchannel.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/channel/connected_channel.h"
 #include "src/core/lib/channel/deadline_filter.h"
diff --git a/src/core/ext/client_channel/client_channel.h b/src/core/ext/filters/client_channel/client_channel.h
similarity index 88%
rename from src/core/ext/client_channel/client_channel.h
rename to src/core/ext/filters/client_channel/client_channel.h
index 5e6e64e..8d2490e 100644
--- a/src/core/ext/client_channel/client_channel.h
+++ b/src/core/ext/filters/client_channel/client_channel.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_CLIENT_CHANNEL_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_CLIENT_CHANNEL_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_H
 
-#include "src/core/ext/client_channel/client_channel_factory.h"
-#include "src/core/ext/client_channel/resolver.h"
+#include "src/core/ext/filters/client_channel/client_channel_factory.h"
+#include "src/core/ext/filters/client_channel/resolver.h"
 #include "src/core/lib/channel/channel_stack.h"
 
 // Channel arg key for server URI string.
@@ -61,4 +61,4 @@
 grpc_subchannel_call *grpc_client_channel_get_subchannel_call(
     grpc_call_element *elem);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_CLIENT_CHANNEL_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_H */
diff --git a/src/core/ext/client_channel/client_channel_factory.c b/src/core/ext/filters/client_channel/client_channel_factory.c
similarity index 97%
rename from src/core/ext/client_channel/client_channel_factory.c
rename to src/core/ext/filters/client_channel/client_channel_factory.c
index d2707a1..44e83b5 100644
--- a/src/core/ext/client_channel/client_channel_factory.c
+++ b/src/core/ext/filters/client_channel/client_channel_factory.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/client_channel_factory.h"
+#include "src/core/ext/filters/client_channel/client_channel_factory.h"
 
 void grpc_client_channel_factory_ref(grpc_client_channel_factory* factory) {
   factory->vtable->ref(factory);
diff --git a/src/core/ext/client_channel/client_channel_factory.h b/src/core/ext/filters/client_channel/client_channel_factory.h
similarity index 93%
rename from src/core/ext/client_channel/client_channel_factory.h
rename to src/core/ext/filters/client_channel/client_channel_factory.h
index bf2764b..2355588 100644
--- a/src/core/ext/client_channel/client_channel_factory.h
+++ b/src/core/ext/filters/client_channel/client_channel_factory.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_CLIENT_CHANNEL_FACTORY_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_CLIENT_CHANNEL_FACTORY_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_FACTORY_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_FACTORY_H
 
 #include <grpc/impl/codegen/grpc_types.h>
 
-#include "src/core/ext/client_channel/subchannel.h"
+#include "src/core/ext/filters/client_channel/subchannel.h"
 #include "src/core/lib/channel/channel_stack.h"
 
 // Channel arg key for client channel factory.
@@ -89,4 +89,4 @@
 grpc_arg grpc_client_channel_factory_create_channel_arg(
     grpc_client_channel_factory *factory);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_CLIENT_CHANNEL_FACTORY_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CLIENT_CHANNEL_FACTORY_H */
diff --git a/src/core/ext/client_channel/client_channel_plugin.c b/src/core/ext/filters/client_channel/client_channel_plugin.c
similarity index 87%
rename from src/core/ext/client_channel/client_channel_plugin.c
rename to src/core/ext/filters/client_channel/client_channel_plugin.c
index f51277d..944af01 100644
--- a/src/core/ext/client_channel/client_channel_plugin.c
+++ b/src/core/ext/filters/client_channel/client_channel_plugin.c
@@ -37,14 +37,14 @@
 
 #include <grpc/support/alloc.h>
 
-#include "src/core/ext/client_channel/client_channel.h"
-#include "src/core/ext/client_channel/http_connect_handshaker.h"
-#include "src/core/ext/client_channel/http_proxy.h"
-#include "src/core/ext/client_channel/lb_policy_registry.h"
-#include "src/core/ext/client_channel/proxy_mapper_registry.h"
-#include "src/core/ext/client_channel/resolver_registry.h"
-#include "src/core/ext/client_channel/retry_throttle.h"
-#include "src/core/ext/client_channel/subchannel_index.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/http_connect_handshaker.h"
+#include "src/core/ext/filters/client_channel/http_proxy.h"
+#include "src/core/ext/filters/client_channel/lb_policy_registry.h"
+#include "src/core/ext/filters/client_channel/proxy_mapper_registry.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
+#include "src/core/ext/filters/client_channel/retry_throttle.h"
+#include "src/core/ext/filters/client_channel/subchannel_index.h"
 #include "src/core/lib/surface/channel_init.h"
 
 static bool append_filter(grpc_exec_ctx *exec_ctx,
diff --git a/src/core/ext/client_channel/connector.c b/src/core/ext/filters/client_channel/connector.c
similarity index 97%
rename from src/core/ext/client_channel/connector.c
rename to src/core/ext/filters/client_channel/connector.c
index 7a720fd..51c1d7e 100644
--- a/src/core/ext/client_channel/connector.c
+++ b/src/core/ext/filters/client_channel/connector.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/connector.h"
+#include "src/core/ext/filters/client_channel/connector.h"
 
 grpc_connector* grpc_connector_ref(grpc_connector* connector) {
   connector->vtable->ref(connector);
diff --git a/src/core/ext/client_channel/connector.h b/src/core/ext/filters/client_channel/connector.h
similarity index 95%
rename from src/core/ext/client_channel/connector.h
rename to src/core/ext/filters/client_channel/connector.h
index 94b5fb5..23040c3 100644
--- a/src/core/ext/client_channel/connector.h
+++ b/src/core/ext/filters/client_channel/connector.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_CONNECTOR_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_CONNECTOR_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CONNECTOR_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CONNECTOR_H
 
 #include "src/core/lib/channel/channel_stack.h"
 #include "src/core/lib/iomgr/resolve_address.h"
@@ -85,4 +85,4 @@
 void grpc_connector_shutdown(grpc_exec_ctx *exec_ctx, grpc_connector *connector,
                              grpc_error *why);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_CONNECTOR_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_CONNECTOR_H */
diff --git a/src/core/ext/client_channel/http_connect_handshaker.c b/src/core/ext/filters/client_channel/http_connect_handshaker.c
similarity index 98%
rename from src/core/ext/client_channel/http_connect_handshaker.c
rename to src/core/ext/filters/client_channel/http_connect_handshaker.c
index 778d76c..c09a863 100644
--- a/src/core/ext/client_channel/http_connect_handshaker.c
+++ b/src/core/ext/filters/client_channel/http_connect_handshaker.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/http_connect_handshaker.h"
+#include "src/core/ext/filters/client_channel/http_connect_handshaker.h"
 
 #include <string.h>
 
@@ -40,9 +40,9 @@
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/ext/client_channel/client_channel.h"
-#include "src/core/ext/client_channel/resolver_registry.h"
-#include "src/core/ext/client_channel/uri_parser.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
+#include "src/core/ext/filters/client_channel/uri_parser.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/channel/handshaker_registry.h"
 #include "src/core/lib/http/format_request.h"
diff --git a/src/core/ext/client_channel/http_connect_handshaker.h b/src/core/ext/filters/client_channel/http_connect_handshaker.h
similarity index 90%
rename from src/core/ext/client_channel/http_connect_handshaker.h
rename to src/core/ext/filters/client_channel/http_connect_handshaker.h
index 3059d55..6d7c204 100644
--- a/src/core/ext/client_channel/http_connect_handshaker.h
+++ b/src/core/ext/filters/client_channel/http_connect_handshaker.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_HTTP_CONNECT_HANDSHAKER_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_HTTP_CONNECT_HANDSHAKER_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_HTTP_CONNECT_HANDSHAKER_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_HTTP_CONNECT_HANDSHAKER_H
 
 /// Channel arg indicating the server in HTTP CONNECT request (string).
 /// The presence of this arg triggers the use of HTTP CONNECT.
@@ -46,4 +46,4 @@
 /// Registers handshaker factory.
 void grpc_http_connect_register_handshaker_factory();
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_HTTP_CONNECT_HANDSHAKER_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_HTTP_CONNECT_HANDSHAKER_H */
diff --git a/src/core/ext/client_channel/http_proxy.c b/src/core/ext/filters/client_channel/http_proxy.c
similarity index 94%
rename from src/core/ext/client_channel/http_proxy.c
rename to src/core/ext/filters/client_channel/http_proxy.c
index e280cef..f8a2d06 100644
--- a/src/core/ext/client_channel/http_proxy.c
+++ b/src/core/ext/filters/client_channel/http_proxy.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/http_proxy.h"
+#include "src/core/ext/filters/client_channel/http_proxy.h"
 
 #include <stdbool.h>
 #include <string.h>
@@ -40,9 +40,9 @@
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/ext/client_channel/http_connect_handshaker.h"
-#include "src/core/ext/client_channel/proxy_mapper_registry.h"
-#include "src/core/ext/client_channel/uri_parser.h"
+#include "src/core/ext/filters/client_channel/http_connect_handshaker.h"
+#include "src/core/ext/filters/client_channel/proxy_mapper_registry.h"
+#include "src/core/ext/filters/client_channel/uri_parser.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/support/env.h"
 
diff --git a/src/core/ext/client_channel/http_proxy.h b/src/core/ext/filters/client_channel/http_proxy.h
similarity index 89%
rename from src/core/ext/client_channel/http_proxy.h
rename to src/core/ext/filters/client_channel/http_proxy.h
index c8882b1..f0df74b 100644
--- a/src/core/ext/client_channel/http_proxy.h
+++ b/src/core/ext/filters/client_channel/http_proxy.h
@@ -31,9 +31,9 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_HTTP_PROXY_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_HTTP_PROXY_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_HTTP_PROXY_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_HTTP_PROXY_H
 
 void grpc_register_http_proxy_mapper();
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_HTTP_PROXY_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_HTTP_PROXY_H */
diff --git a/src/core/ext/client_channel/lb_policy.c b/src/core/ext/filters/client_channel/lb_policy.c
similarity index 98%
rename from src/core/ext/client_channel/lb_policy.c
rename to src/core/ext/filters/client_channel/lb_policy.c
index aba51ad..2d31499 100644
--- a/src/core/ext/client_channel/lb_policy.c
+++ b/src/core/ext/filters/client_channel/lb_policy.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/lb_policy.h"
+#include "src/core/ext/filters/client_channel/lb_policy.h"
 #include "src/core/lib/iomgr/combiner.h"
 
 #define WEAK_REF_BITS 16
diff --git a/src/core/ext/client_channel/lb_policy.h b/src/core/ext/filters/client_channel/lb_policy.h
similarity index 97%
rename from src/core/ext/client_channel/lb_policy.h
rename to src/core/ext/filters/client_channel/lb_policy.h
index 3405709..2542766 100644
--- a/src/core/ext/client_channel/lb_policy.h
+++ b/src/core/ext/filters/client_channel/lb_policy.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_LB_POLICY_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_LB_POLICY_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_H
 
-#include "src/core/ext/client_channel/subchannel.h"
+#include "src/core/ext/filters/client_channel/subchannel.h"
 #include "src/core/lib/iomgr/polling_entity.h"
 #include "src/core/lib/transport/connectivity_state.h"
 
@@ -206,4 +206,4 @@
     grpc_exec_ctx *exec_ctx, grpc_lb_policy *policy,
     grpc_error **connectivity_error);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_LB_POLICY_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_H */
diff --git a/src/core/ext/lb_policy/grpclb/grpclb.c b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c
similarity index 98%
rename from src/core/ext/lb_policy/grpclb/grpclb.c
rename to src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c
index 629d819..ff8d319 100644
--- a/src/core/ext/lb_policy/grpclb/grpclb.c
+++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c
@@ -106,14 +106,14 @@
 #include <grpc/support/string_util.h>
 #include <grpc/support/time.h>
 
-#include "src/core/ext/client_channel/client_channel.h"
-#include "src/core/ext/client_channel/client_channel_factory.h"
-#include "src/core/ext/client_channel/lb_policy_factory.h"
-#include "src/core/ext/client_channel/lb_policy_registry.h"
-#include "src/core/ext/client_channel/parse_address.h"
-#include "src/core/ext/lb_policy/grpclb/grpclb.h"
-#include "src/core/ext/lb_policy/grpclb/grpclb_channel.h"
-#include "src/core/ext/lb_policy/grpclb/load_balancer_api.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel_factory.h"
+#include "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h"
+#include "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h"
+#include "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h"
+#include "src/core/ext/filters/client_channel/lb_policy_factory.h"
+#include "src/core/ext/filters/client_channel/lb_policy_registry.h"
+#include "src/core/ext/filters/client_channel/parse_address.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/iomgr/combiner.h"
 #include "src/core/lib/iomgr/sockaddr.h"
diff --git a/src/core/ext/lb_policy/grpclb/grpclb.h b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h
similarity index 86%
rename from src/core/ext/lb_policy/grpclb/grpclb.h
rename to src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h
index ff23f3a..b069fae 100644
--- a/src/core/ext/lb_policy/grpclb/grpclb.h
+++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h
@@ -31,14 +31,14 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_LB_POLICY_GRPCLB_GRPCLB_H
-#define GRPC_CORE_EXT_LB_POLICY_GRPCLB_GRPCLB_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_GRPCLB_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_GRPCLB_H
 
-#include "src/core/ext/client_channel/lb_policy_factory.h"
+#include "src/core/ext/filters/client_channel/lb_policy_factory.h"
 
 /** Returns a load balancing factory for the glb policy, which tries to connect
  * to a load balancing server to decide the next successfully connected
  * subchannel to pick. */
 grpc_lb_policy_factory *grpc_glb_lb_factory_create();
 
-#endif /* GRPC_CORE_EXT_LB_POLICY_GRPCLB_GRPCLB_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_GRPCLB_H */
diff --git a/src/core/ext/lb_policy/grpclb/grpclb_channel.c b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.c
similarity index 95%
rename from src/core/ext/lb_policy/grpclb/grpclb_channel.c
rename to src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.c
index 1b8bbab..d6201f2 100644
--- a/src/core/ext/lb_policy/grpclb/grpclb_channel.c
+++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.c
@@ -34,8 +34,8 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/ext/client_channel/client_channel.h"
-#include "src/core/ext/lb_policy/grpclb/grpclb_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/iomgr/sockaddr_utils.h"
 #include "src/core/lib/support/string.h"
diff --git a/src/core/ext/lb_policy/grpclb/grpclb_channel.h b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h
similarity index 88%
rename from src/core/ext/lb_policy/grpclb/grpclb_channel.h
rename to src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h
index f66082d..9730c97 100644
--- a/src/core/ext/lb_policy/grpclb/grpclb_channel.h
+++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_LB_POLICY_GRPCLB_GRPCLB_CHANNEL_H
-#define GRPC_CORE_EXT_LB_POLICY_GRPCLB_GRPCLB_CHANNEL_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_GRPCLB_CHANNEL_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_GRPCLB_CHANNEL_H
 
-#include "src/core/ext/client_channel/lb_policy_factory.h"
+#include "src/core/ext/filters/client_channel/lb_policy_factory.h"
 #include "src/core/lib/slice/slice_hash_table.h"
 
 /** Create the channel used for communicating with an LB service.
@@ -53,4 +53,5 @@
                                        grpc_slice_hash_table *targets_info,
                                        const grpc_channel_args *args);
 
-#endif /* GRPC_CORE_EXT_LB_POLICY_GRPCLB_GRPCLB_CHANNEL_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_GRPCLB_CHANNEL_H \
+          */
diff --git a/src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c
similarity index 96%
rename from src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c
rename to src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c
index 2fee5f1..a145cba 100644
--- a/src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c
+++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c
@@ -34,8 +34,8 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/ext/client_channel/client_channel.h"
-#include "src/core/ext/lb_policy/grpclb/grpclb_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/iomgr/sockaddr_utils.h"
 #include "src/core/lib/security/credentials/credentials.h"
diff --git a/src/core/ext/lb_policy/grpclb/load_balancer_api.c b/src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c
similarity index 98%
rename from src/core/ext/lb_policy/grpclb/load_balancer_api.c
rename to src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c
index 3c4604c..10af252 100644
--- a/src/core/ext/lb_policy/grpclb/load_balancer_api.c
+++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/lb_policy/grpclb/load_balancer_api.h"
+#include "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h"
 #include "third_party/nanopb/pb_decode.h"
 #include "third_party/nanopb/pb_encode.h"
 
diff --git a/src/core/ext/lb_policy/grpclb/load_balancer_api.h b/src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h
similarity index 89%
rename from src/core/ext/lb_policy/grpclb/load_balancer_api.h
rename to src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h
index b4c967e..d014b88 100644
--- a/src/core/ext/lb_policy/grpclb/load_balancer_api.h
+++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h
@@ -31,13 +31,13 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_LB_POLICY_GRPCLB_LOAD_BALANCER_API_H
-#define GRPC_CORE_EXT_LB_POLICY_GRPCLB_LOAD_BALANCER_API_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_LOAD_BALANCER_API_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_LOAD_BALANCER_API_H
 
 #include <grpc/slice_buffer.h>
 
-#include "src/core/ext/client_channel/lb_policy_factory.h"
-#include "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h"
+#include "src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h"
+#include "src/core/ext/filters/client_channel/lb_policy_factory.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -101,4 +101,5 @@
 }
 #endif
 
-#endif /* GRPC_CORE_EXT_LB_POLICY_GRPCLB_LOAD_BALANCER_API_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_GRPCLB_LOAD_BALANCER_API_H \
+          */
diff --git a/src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c b/src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c
similarity index 97%
rename from src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c
rename to src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c
index e352e03..e9adf98 100644
--- a/src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c
+++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c
@@ -1,7 +1,7 @@
 /* Automatically generated nanopb constant definitions */
 /* Generated by nanopb-0.3.7-dev */
 
-#include "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h"
+#include "src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h"
 
 /* @@protoc_insertion_point(includes) */
 #if PB_PROTO_HEADER_VERSION != 30
diff --git a/src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h b/src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h
similarity index 100%
rename from src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h
rename to src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h
diff --git a/src/core/ext/lb_policy/pick_first/pick_first.c b/src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c
similarity index 98%
rename from src/core/ext/lb_policy/pick_first/pick_first.c
rename to src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c
index 8c73ea6..2b77cd3 100644
--- a/src/core/ext/lb_policy/pick_first/pick_first.c
+++ b/src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c
@@ -35,8 +35,8 @@
 
 #include <grpc/support/alloc.h>
 
-#include "src/core/ext/client_channel/lb_policy_registry.h"
-#include "src/core/ext/client_channel/subchannel.h"
+#include "src/core/ext/filters/client_channel/lb_policy_registry.h"
+#include "src/core/ext/filters/client_channel/subchannel.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/iomgr/combiner.h"
 #include "src/core/lib/iomgr/sockaddr_utils.h"
diff --git a/src/core/ext/lb_policy/round_robin/round_robin.c b/src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c
similarity index 99%
rename from src/core/ext/lb_policy/round_robin/round_robin.c
rename to src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c
index 8665b5c..ff41e61 100644
--- a/src/core/ext/lb_policy/round_robin/round_robin.c
+++ b/src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c
@@ -63,8 +63,8 @@
 
 #include <grpc/support/alloc.h>
 
-#include "src/core/ext/client_channel/lb_policy_registry.h"
-#include "src/core/ext/client_channel/subchannel.h"
+#include "src/core/ext/filters/client_channel/lb_policy_registry.h"
+#include "src/core/ext/filters/client_channel/subchannel.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/debug/trace.h"
 #include "src/core/lib/iomgr/combiner.h"
diff --git a/src/core/ext/client_channel/lb_policy_factory.c b/src/core/ext/filters/client_channel/lb_policy_factory.c
similarity index 98%
rename from src/core/ext/client_channel/lb_policy_factory.c
rename to src/core/ext/filters/client_channel/lb_policy_factory.c
index 7af9bb0..e2af216 100644
--- a/src/core/ext/client_channel/lb_policy_factory.c
+++ b/src/core/ext/filters/client_channel/lb_policy_factory.c
@@ -36,7 +36,7 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/ext/client_channel/lb_policy_factory.h"
+#include "src/core/ext/filters/client_channel/lb_policy_factory.h"
 
 grpc_lb_addresses* grpc_lb_addresses_create(
     size_t num_addresses, const grpc_lb_user_data_vtable* user_data_vtable) {
diff --git a/src/core/ext/client_channel/lb_policy_factory.h b/src/core/ext/filters/client_channel/lb_policy_factory.h
similarity index 93%
rename from src/core/ext/client_channel/lb_policy_factory.h
rename to src/core/ext/filters/client_channel/lb_policy_factory.h
index 27c12c0..81ab12e 100644
--- a/src/core/ext/client_channel/lb_policy_factory.h
+++ b/src/core/ext/filters/client_channel/lb_policy_factory.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_LB_POLICY_FACTORY_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_LB_POLICY_FACTORY_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_FACTORY_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_FACTORY_H
 
-#include "src/core/ext/client_channel/client_channel_factory.h"
-#include "src/core/ext/client_channel/lb_policy.h"
+#include "src/core/ext/filters/client_channel/client_channel_factory.h"
+#include "src/core/ext/filters/client_channel/lb_policy.h"
 
 #include "src/core/lib/iomgr/exec_ctx.h"
 #include "src/core/lib/iomgr/resolve_address.h"
@@ -131,4 +131,4 @@
     grpc_exec_ctx *exec_ctx, grpc_lb_policy_factory *factory,
     grpc_lb_policy_args *args);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_LB_POLICY_FACTORY_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_FACTORY_H */
diff --git a/src/core/ext/client_channel/lb_policy_registry.c b/src/core/ext/filters/client_channel/lb_policy_registry.c
similarity index 97%
rename from src/core/ext/client_channel/lb_policy_registry.c
rename to src/core/ext/filters/client_channel/lb_policy_registry.c
index 90c149d..1376673 100644
--- a/src/core/ext/client_channel/lb_policy_registry.c
+++ b/src/core/ext/filters/client_channel/lb_policy_registry.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/lb_policy_registry.h"
+#include "src/core/ext/filters/client_channel/lb_policy_registry.h"
 
 #include <string.h>
 
diff --git a/src/core/ext/client_channel/lb_policy_registry.h b/src/core/ext/filters/client_channel/lb_policy_registry.h
similarity index 88%
rename from src/core/ext/client_channel/lb_policy_registry.h
rename to src/core/ext/filters/client_channel/lb_policy_registry.h
index 21c468e..dfdec13 100644
--- a/src/core/ext/client_channel/lb_policy_registry.h
+++ b/src/core/ext/filters/client_channel/lb_policy_registry.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_LB_POLICY_REGISTRY_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_LB_POLICY_REGISTRY_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_REGISTRY_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_REGISTRY_H
 
-#include "src/core/ext/client_channel/lb_policy_factory.h"
+#include "src/core/ext/filters/client_channel/lb_policy_factory.h"
 #include "src/core/lib/iomgr/exec_ctx.h"
 
 /** Initialize the registry and set \a default_factory as the factory to be
@@ -52,4 +52,4 @@
 grpc_lb_policy *grpc_lb_policy_create(grpc_exec_ctx *exec_ctx, const char *name,
                                       grpc_lb_policy_args *args);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_LB_POLICY_REGISTRY_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_LB_POLICY_REGISTRY_H */
diff --git a/src/core/ext/client_channel/parse_address.c b/src/core/ext/filters/client_channel/parse_address.c
similarity index 98%
rename from src/core/ext/client_channel/parse_address.c
rename to src/core/ext/filters/client_channel/parse_address.c
index cd1b2cd..0c97062 100644
--- a/src/core/ext/client_channel/parse_address.c
+++ b/src/core/ext/filters/client_channel/parse_address.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/parse_address.h"
+#include "src/core/ext/filters/client_channel/parse_address.h"
 #include "src/core/lib/iomgr/sockaddr.h"
 
 #include <stdio.h>
diff --git a/src/core/ext/client_channel/parse_address.h b/src/core/ext/filters/client_channel/parse_address.h
similarity index 89%
rename from src/core/ext/client_channel/parse_address.h
rename to src/core/ext/filters/client_channel/parse_address.h
index bf99c52..c8d77ba 100644
--- a/src/core/ext/client_channel/parse_address.h
+++ b/src/core/ext/filters/client_channel/parse_address.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_PARSE_ADDRESS_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_PARSE_ADDRESS_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_PARSE_ADDRESS_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_PARSE_ADDRESS_H
 
 #include <stddef.h>
 
-#include "src/core/ext/client_channel/uri_parser.h"
+#include "src/core/ext/filters/client_channel/uri_parser.h"
 #include "src/core/lib/iomgr/resolve_address.h"
 
 /** Populate \a addr and \a len from \a uri, whose path is expected to contain a
@@ -51,4 +51,4 @@
  * host:port pair. Returns true upon success. */
 int parse_ipv6(grpc_uri *uri, grpc_resolved_address *resolved_addr);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_PARSE_ADDRESS_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_PARSE_ADDRESS_H */
diff --git a/src/core/ext/client_channel/proxy_mapper.c b/src/core/ext/filters/client_channel/proxy_mapper.c
similarity index 97%
rename from src/core/ext/client_channel/proxy_mapper.c
rename to src/core/ext/filters/client_channel/proxy_mapper.c
index f92afe8..6dddd3c 100644
--- a/src/core/ext/client_channel/proxy_mapper.c
+++ b/src/core/ext/filters/client_channel/proxy_mapper.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/proxy_mapper.h"
+#include "src/core/ext/filters/client_channel/proxy_mapper.h"
 
 void grpc_proxy_mapper_init(const grpc_proxy_mapper_vtable* vtable,
                             grpc_proxy_mapper* mapper) {
diff --git a/src/core/ext/client_channel/proxy_mapper.h b/src/core/ext/filters/client_channel/proxy_mapper.h
similarity index 95%
rename from src/core/ext/client_channel/proxy_mapper.h
rename to src/core/ext/filters/client_channel/proxy_mapper.h
index 6e4607f..d0c47d3 100644
--- a/src/core/ext/client_channel/proxy_mapper.h
+++ b/src/core/ext/filters/client_channel/proxy_mapper.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_PROXY_MAPPER_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_PROXY_MAPPER_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_PROXY_MAPPER_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_PROXY_MAPPER_H
 
 #include <stdbool.h>
 
@@ -86,4 +86,4 @@
 
 void grpc_proxy_mapper_destroy(grpc_proxy_mapper* mapper);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_PROXY_MAPPER_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_PROXY_MAPPER_H */
diff --git a/src/core/ext/client_channel/proxy_mapper_registry.c b/src/core/ext/filters/client_channel/proxy_mapper_registry.c
similarity index 98%
rename from src/core/ext/client_channel/proxy_mapper_registry.c
rename to src/core/ext/filters/client_channel/proxy_mapper_registry.c
index 0935ddb..7a39289 100644
--- a/src/core/ext/client_channel/proxy_mapper_registry.c
+++ b/src/core/ext/filters/client_channel/proxy_mapper_registry.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/proxy_mapper_registry.h"
+#include "src/core/ext/filters/client_channel/proxy_mapper_registry.h"
 
 #include <string.h>
 
diff --git a/src/core/ext/client_channel/proxy_mapper_registry.h b/src/core/ext/filters/client_channel/proxy_mapper_registry.h
similarity index 90%
rename from src/core/ext/client_channel/proxy_mapper_registry.h
rename to src/core/ext/filters/client_channel/proxy_mapper_registry.h
index 742b57a..8b5686d 100644
--- a/src/core/ext/client_channel/proxy_mapper_registry.h
+++ b/src/core/ext/filters/client_channel/proxy_mapper_registry.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_PROXY_MAPPER_REGISTRY_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_PROXY_MAPPER_REGISTRY_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_PROXY_MAPPER_REGISTRY_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_PROXY_MAPPER_REGISTRY_H
 
-#include "src/core/ext/client_channel/proxy_mapper.h"
+#include "src/core/ext/filters/client_channel/proxy_mapper.h"
 
 void grpc_proxy_mapper_registry_init();
 void grpc_proxy_mapper_registry_shutdown();
@@ -56,4 +56,4 @@
                                     grpc_resolved_address** new_address,
                                     grpc_channel_args** new_args);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_PROXY_MAPPER_REGISTRY_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_PROXY_MAPPER_REGISTRY_H */
diff --git a/src/core/ext/client_channel/resolver.c b/src/core/ext/filters/client_channel/resolver.c
similarity index 98%
rename from src/core/ext/client_channel/resolver.c
rename to src/core/ext/filters/client_channel/resolver.c
index b1a1faa..cafa283 100644
--- a/src/core/ext/client_channel/resolver.c
+++ b/src/core/ext/filters/client_channel/resolver.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/resolver.h"
+#include "src/core/ext/filters/client_channel/resolver.h"
 #include "src/core/lib/iomgr/combiner.h"
 
 void grpc_resolver_init(grpc_resolver *resolver,
diff --git a/src/core/ext/client_channel/resolver.h b/src/core/ext/filters/client_channel/resolver.h
similarity index 94%
rename from src/core/ext/client_channel/resolver.h
rename to src/core/ext/filters/client_channel/resolver.h
index bbba424..55f9124 100644
--- a/src/core/ext/client_channel/resolver.h
+++ b/src/core/ext/filters/client_channel/resolver.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_RESOLVER_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_RESOLVER_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_H
 
-#include "src/core/ext/client_channel/subchannel.h"
+#include "src/core/ext/filters/client_channel/subchannel.h"
 #include "src/core/lib/iomgr/iomgr.h"
 
 typedef struct grpc_resolver grpc_resolver;
@@ -98,4 +98,4 @@
                                grpc_channel_args **result,
                                grpc_closure *on_complete);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_RESOLVER_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_H */
diff --git a/src/core/ext/resolver/README.md b/src/core/ext/filters/client_channel/resolver/README.md
similarity index 100%
rename from src/core/ext/resolver/README.md
rename to src/core/ext/filters/client_channel/resolver/README.md
diff --git a/src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c b/src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c
similarity index 97%
rename from src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c
rename to src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c
index f27da23..ffaeeed 100644
--- a/src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c
+++ b/src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c
@@ -40,10 +40,10 @@
 #include <grpc/support/host_port.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/ext/client_channel/http_connect_handshaker.h"
-#include "src/core/ext/client_channel/lb_policy_registry.h"
-#include "src/core/ext/client_channel/resolver_registry.h"
-#include "src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h"
+#include "src/core/ext/filters/client_channel/http_connect_handshaker.h"
+#include "src/core/ext/filters/client_channel/lb_policy_registry.h"
+#include "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/iomgr/combiner.h"
 #include "src/core/lib/iomgr/resolve_address.h"
diff --git a/src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h
similarity index 90%
rename from src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h
rename to src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h
index 334feaa..aa88940 100644
--- a/src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h
+++ b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_RESOLVER_DNS_C_ARES_GRPC_ARES_EV_DRIVER_H
-#define GRPC_CORE_EXT_RESOLVER_DNS_C_ARES_GRPC_ARES_EV_DRIVER_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_C_ARES_GRPC_ARES_EV_DRIVER_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_C_ARES_GRPC_ARES_EV_DRIVER_H
 
 #include <ares.h>
 
@@ -62,4 +62,5 @@
    of ARES_ECANCELLED. */
 void grpc_ares_ev_driver_destroy(grpc_ares_ev_driver *ev_driver);
 
-#endif /* GRPC_CORE_EXT_RESOLVER_DNS_C_ARES_GRPC_ARES_EV_DRIVER_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_C_ARES_GRPC_ARES_EV_DRIVER_H \
+          */
diff --git a/src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c
similarity index 98%
rename from src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c
rename to src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c
index fab4f0c..1e4f3eb 100644
--- a/src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c
+++ b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c
@@ -34,14 +34,14 @@
 #include "src/core/lib/iomgr/port.h"
 #if GRPC_ARES == 1 && defined(GRPC_POSIX_SOCKET)
 
-#include "src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h"
+#include "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h"
 
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 #include <grpc/support/time.h>
 #include <grpc/support/useful.h>
-#include "src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h"
+#include "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h"
 #include "src/core/lib/iomgr/ev_posix.h"
 #include "src/core/lib/iomgr/iomgr_internal.h"
 #include "src/core/lib/iomgr/sockaddr_utils.h"
diff --git a/src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c
similarity index 98%
rename from src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c
rename to src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c
index 3eee8e3..09c46a6 100644
--- a/src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c
+++ b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c
@@ -34,7 +34,7 @@
 #include <grpc/support/port_platform.h>
 #if GRPC_ARES == 1 && !defined(GRPC_UV)
 
-#include "src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h"
+#include "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h"
 #include "src/core/lib/iomgr/sockaddr.h"
 #include "src/core/lib/iomgr/socket_utils_posix.h"
 
@@ -48,7 +48,7 @@
 #include <grpc/support/string_util.h>
 #include <grpc/support/time.h>
 #include <grpc/support/useful.h>
-#include "src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h"
+#include "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h"
 #include "src/core/lib/iomgr/executor.h"
 #include "src/core/lib/iomgr/iomgr_internal.h"
 #include "src/core/lib/iomgr/sockaddr_utils.h"
diff --git a/src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h
similarity index 91%
rename from src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h
rename to src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h
index ab00a26..3dd40ea 100644
--- a/src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h
+++ b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_RESOLVER_DNS_C_ARES_GRPC_ARES_WRAPPER_H
-#define GRPC_CORE_EXT_RESOLVER_DNS_C_ARES_GRPC_ARES_WRAPPER_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_C_ARES_GRPC_ARES_WRAPPER_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_C_ARES_GRPC_ARES_WRAPPER_H
 
 #include "src/core/lib/iomgr/exec_ctx.h"
 #include "src/core/lib/iomgr/iomgr.h"
@@ -60,4 +60,5 @@
    it has been called the same number of times as grpc_ares_init(). */
 void grpc_ares_cleanup(void);
 
-#endif /* GRPC_CORE_EXT_RESOLVER_DNS_C_ARES_GRPC_ARES_WRAPPER_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_C_ARES_GRPC_ARES_WRAPPER_H \
+          */
diff --git a/src/core/ext/resolver/dns/native/README.md b/src/core/ext/filters/client_channel/resolver/dns/native/README.md
similarity index 100%
rename from src/core/ext/resolver/dns/native/README.md
rename to src/core/ext/filters/client_channel/resolver/dns/native/README.md
diff --git a/src/core/ext/resolver/dns/native/dns_resolver.c b/src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c
similarity index 98%
rename from src/core/ext/resolver/dns/native/dns_resolver.c
rename to src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c
index 97cd048..ebe6a07 100644
--- a/src/core/ext/resolver/dns/native/dns_resolver.c
+++ b/src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c
@@ -37,8 +37,8 @@
 #include <grpc/support/host_port.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/ext/client_channel/lb_policy_registry.h"
-#include "src/core/ext/client_channel/resolver_registry.h"
+#include "src/core/ext/filters/client_channel/lb_policy_registry.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/iomgr/combiner.h"
 #include "src/core/lib/iomgr/resolve_address.h"
diff --git a/src/core/ext/resolver/sockaddr/README.md b/src/core/ext/filters/client_channel/resolver/sockaddr/README.md
similarity index 100%
rename from src/core/ext/resolver/sockaddr/README.md
rename to src/core/ext/filters/client_channel/resolver/sockaddr/README.md
diff --git a/src/core/ext/resolver/sockaddr/sockaddr_resolver.c b/src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c
similarity index 97%
rename from src/core/ext/resolver/sockaddr/sockaddr_resolver.c
rename to src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c
index da5923d..54f020d 100644
--- a/src/core/ext/resolver/sockaddr/sockaddr_resolver.c
+++ b/src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c
@@ -41,9 +41,9 @@
 #include <grpc/support/port_platform.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/ext/client_channel/lb_policy_factory.h"
-#include "src/core/ext/client_channel/parse_address.h"
-#include "src/core/ext/client_channel/resolver_registry.h"
+#include "src/core/ext/filters/client_channel/lb_policy_factory.h"
+#include "src/core/ext/filters/client_channel/parse_address.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/iomgr/combiner.h"
 #include "src/core/lib/iomgr/resolve_address.h"
diff --git a/src/core/ext/client_channel/resolver_factory.c b/src/core/ext/filters/client_channel/resolver_factory.c
similarity index 96%
rename from src/core/ext/client_channel/resolver_factory.c
rename to src/core/ext/filters/client_channel/resolver_factory.c
index 00bbb92..07f9e4c 100644
--- a/src/core/ext/client_channel/resolver_factory.c
+++ b/src/core/ext/filters/client_channel/resolver_factory.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/resolver_factory.h"
+#include "src/core/ext/filters/client_channel/resolver_factory.h"
 
 void grpc_resolver_factory_ref(grpc_resolver_factory* factory) {
   factory->vtable->ref(factory);
diff --git a/src/core/ext/client_channel/resolver_factory.h b/src/core/ext/filters/client_channel/resolver_factory.h
similarity index 88%
rename from src/core/ext/client_channel/resolver_factory.h
rename to src/core/ext/filters/client_channel/resolver_factory.h
index e3cd99e..f2fcfc0 100644
--- a/src/core/ext/client_channel/resolver_factory.h
+++ b/src/core/ext/filters/client_channel/resolver_factory.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_RESOLVER_FACTORY_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_RESOLVER_FACTORY_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_FACTORY_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_FACTORY_H
 
-#include "src/core/ext/client_channel/client_channel_factory.h"
-#include "src/core/ext/client_channel/resolver.h"
-#include "src/core/ext/client_channel/uri_parser.h"
+#include "src/core/ext/filters/client_channel/client_channel_factory.h"
+#include "src/core/ext/filters/client_channel/resolver.h"
+#include "src/core/ext/filters/client_channel/uri_parser.h"
 #include "src/core/lib/iomgr/pollset_set.h"
 
 typedef struct grpc_resolver_factory grpc_resolver_factory;
@@ -82,4 +82,4 @@
 char *grpc_resolver_factory_get_default_authority(
     grpc_resolver_factory *factory, grpc_uri *uri);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_RESOLVER_FACTORY_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_FACTORY_H */
diff --git a/src/core/ext/client_channel/resolver_registry.c b/src/core/ext/filters/client_channel/resolver_registry.c
similarity index 98%
rename from src/core/ext/client_channel/resolver_registry.c
rename to src/core/ext/filters/client_channel/resolver_registry.c
index 0f074a3..fa997bd 100644
--- a/src/core/ext/client_channel/resolver_registry.c
+++ b/src/core/ext/filters/client_channel/resolver_registry.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/resolver_registry.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
 
 #include <string.h>
 
diff --git a/src/core/ext/client_channel/resolver_registry.h b/src/core/ext/filters/client_channel/resolver_registry.h
similarity index 93%
rename from src/core/ext/client_channel/resolver_registry.h
rename to src/core/ext/filters/client_channel/resolver_registry.h
index 1a3ebee..f2e9f92 100644
--- a/src/core/ext/client_channel/resolver_registry.h
+++ b/src/core/ext/filters/client_channel/resolver_registry.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_RESOLVER_REGISTRY_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_RESOLVER_REGISTRY_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_REGISTRY_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_REGISTRY_H
 
-#include "src/core/ext/client_channel/resolver_factory.h"
+#include "src/core/ext/filters/client_channel/resolver_factory.h"
 #include "src/core/lib/iomgr/pollset_set.h"
 
 void grpc_resolver_registry_init();
@@ -81,4 +81,4 @@
 char *grpc_resolver_factory_add_default_prefix_if_needed(
     grpc_exec_ctx *exec_ctx, const char *target);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_RESOLVER_REGISTRY_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_REGISTRY_H */
diff --git a/src/core/ext/client_channel/retry_throttle.c b/src/core/ext/filters/client_channel/retry_throttle.c
similarity index 98%
rename from src/core/ext/client_channel/retry_throttle.c
rename to src/core/ext/filters/client_channel/retry_throttle.c
index 8926c3d..dd78a17 100644
--- a/src/core/ext/client_channel/retry_throttle.c
+++ b/src/core/ext/filters/client_channel/retry_throttle.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/retry_throttle.h"
+#include "src/core/ext/filters/client_channel/retry_throttle.h"
 
 #include <limits.h>
 #include <string.h>
diff --git a/src/core/ext/client_channel/retry_throttle.h b/src/core/ext/filters/client_channel/retry_throttle.h
similarity index 93%
rename from src/core/ext/client_channel/retry_throttle.h
rename to src/core/ext/filters/client_channel/retry_throttle.h
index f9971fa..640865c 100644
--- a/src/core/ext/client_channel/retry_throttle.h
+++ b/src/core/ext/filters/client_channel/retry_throttle.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_RETRY_THROTTLE_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_RETRY_THROTTLE_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RETRY_THROTTLE_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RETRY_THROTTLE_H
 
 #include <stdbool.h>
 
@@ -62,4 +62,4 @@
 grpc_server_retry_throttle_data* grpc_retry_throttle_map_get_data_for_server(
     const char* server_name, int max_milli_tokens, int milli_token_ratio);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_RETRY_THROTTLE_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RETRY_THROTTLE_H */
diff --git a/src/core/ext/client_channel/subchannel.c b/src/core/ext/filters/client_channel/subchannel.c
similarity index 98%
rename from src/core/ext/client_channel/subchannel.c
rename to src/core/ext/filters/client_channel/subchannel.c
index 3a2cb00..29a1a09 100644
--- a/src/core/ext/client_channel/subchannel.c
+++ b/src/core/ext/filters/client_channel/subchannel.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/subchannel.h"
+#include "src/core/ext/filters/client_channel/subchannel.h"
 
 #include <limits.h>
 #include <string.h>
@@ -40,11 +40,11 @@
 #include <grpc/support/avl.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/ext/client_channel/client_channel.h"
-#include "src/core/ext/client_channel/parse_address.h"
-#include "src/core/ext/client_channel/proxy_mapper_registry.h"
-#include "src/core/ext/client_channel/subchannel_index.h"
-#include "src/core/ext/client_channel/uri_parser.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/parse_address.h"
+#include "src/core/ext/filters/client_channel/proxy_mapper_registry.h"
+#include "src/core/ext/filters/client_channel/subchannel_index.h"
+#include "src/core/ext/filters/client_channel/uri_parser.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/channel/connected_channel.h"
 #include "src/core/lib/iomgr/sockaddr_utils.h"
@@ -782,8 +782,6 @@
   if (error != GRPC_ERROR_NONE) {
     const char *error_string = grpc_error_string(error);
     gpr_log(GPR_ERROR, "error: %s", error_string);
-
-    gpr_free(*call);
     return error;
   }
   GRPC_CONNECTED_SUBCHANNEL_REF(con, "subchannel_call");
diff --git a/src/core/ext/client_channel/subchannel.h b/src/core/ext/filters/client_channel/subchannel.h
similarity index 97%
rename from src/core/ext/client_channel/subchannel.h
rename to src/core/ext/filters/client_channel/subchannel.h
index ba96c92..6473de4 100644
--- a/src/core/ext/client_channel/subchannel.h
+++ b/src/core/ext/filters/client_channel/subchannel.h
@@ -31,10 +31,10 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_SUBCHANNEL_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_SUBCHANNEL_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_SUBCHANNEL_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_SUBCHANNEL_H
 
-#include "src/core/ext/client_channel/connector.h"
+#include "src/core/ext/filters/client_channel/connector.h"
 #include "src/core/lib/channel/channel_stack.h"
 #include "src/core/lib/iomgr/polling_entity.h"
 #include "src/core/lib/support/arena.h"
@@ -200,4 +200,4 @@
 /// Caller is responsible for freeing the string.
 grpc_arg grpc_create_subchannel_address_arg(const grpc_resolved_address *addr);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_SUBCHANNEL_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_SUBCHANNEL_H */
diff --git a/src/core/ext/client_channel/subchannel_index.c b/src/core/ext/filters/client_channel/subchannel_index.c
similarity index 98%
rename from src/core/ext/client_channel/subchannel_index.c
rename to src/core/ext/filters/client_channel/subchannel_index.c
index 1188930..f6ef4a8 100644
--- a/src/core/ext/client_channel/subchannel_index.c
+++ b/src/core/ext/filters/client_channel/subchannel_index.c
@@ -31,7 +31,7 @@
 //
 //
 
-#include "src/core/ext/client_channel/subchannel_index.h"
+#include "src/core/ext/filters/client_channel/subchannel_index.h"
 
 #include <stdbool.h>
 #include <string.h>
diff --git a/src/core/ext/client_channel/subchannel_index.h b/src/core/ext/filters/client_channel/subchannel_index.h
similarity index 90%
rename from src/core/ext/client_channel/subchannel_index.h
rename to src/core/ext/filters/client_channel/subchannel_index.h
index a67bd5e..f673ade 100644
--- a/src/core/ext/client_channel/subchannel_index.h
+++ b/src/core/ext/filters/client_channel/subchannel_index.h
@@ -31,11 +31,11 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_SUBCHANNEL_INDEX_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_SUBCHANNEL_INDEX_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_SUBCHANNEL_INDEX_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_SUBCHANNEL_INDEX_H
 
-#include "src/core/ext/client_channel/connector.h"
-#include "src/core/ext/client_channel/subchannel.h"
+#include "src/core/ext/filters/client_channel/connector.h"
+#include "src/core/ext/filters/client_channel/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_EXT_CLIENT_CHANNEL_SUBCHANNEL_INDEX_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_SUBCHANNEL_INDEX_H */
diff --git a/src/core/ext/client_channel/uri_parser.c b/src/core/ext/filters/client_channel/uri_parser.c
similarity index 99%
rename from src/core/ext/client_channel/uri_parser.c
rename to src/core/ext/filters/client_channel/uri_parser.c
index d385db0..01b9991 100644
--- a/src/core/ext/client_channel/uri_parser.c
+++ b/src/core/ext/filters/client_channel/uri_parser.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/uri_parser.h"
+#include "src/core/ext/filters/client_channel/uri_parser.h"
 
 #include <string.h>
 
diff --git a/src/core/ext/client_channel/uri_parser.h b/src/core/ext/filters/client_channel/uri_parser.h
similarity index 92%
rename from src/core/ext/client_channel/uri_parser.h
rename to src/core/ext/filters/client_channel/uri_parser.h
index efd4302..2698d44 100644
--- a/src/core/ext/client_channel/uri_parser.h
+++ b/src/core/ext/filters/client_channel/uri_parser.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_CLIENT_CHANNEL_URI_PARSER_H
-#define GRPC_CORE_EXT_CLIENT_CHANNEL_URI_PARSER_H
+#ifndef GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_URI_PARSER_H
+#define GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_URI_PARSER_H
 
 #include <stddef.h>
 #include "src/core/lib/iomgr/exec_ctx.h"
@@ -62,4 +62,4 @@
 /** destroy a uri */
 void grpc_uri_destroy(grpc_uri *uri);
 
-#endif /* GRPC_CORE_EXT_CLIENT_CHANNEL_URI_PARSER_H */
+#endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_URI_PARSER_H */
diff --git a/src/core/ext/load_reporting/load_reporting.c b/src/core/ext/filters/load_reporting/load_reporting.c
similarity index 96%
rename from src/core/ext/load_reporting/load_reporting.c
rename to src/core/ext/filters/load_reporting/load_reporting.c
index 942aea4..9fb33ba 100644
--- a/src/core/ext/load_reporting/load_reporting.c
+++ b/src/core/ext/filters/load_reporting/load_reporting.c
@@ -38,8 +38,8 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/sync.h>
 
-#include "src/core/ext/load_reporting/load_reporting.h"
-#include "src/core/ext/load_reporting/load_reporting_filter.h"
+#include "src/core/ext/filters/load_reporting/load_reporting.h"
+#include "src/core/ext/filters/load_reporting/load_reporting_filter.h"
 #include "src/core/lib/channel/channel_stack_builder.h"
 #include "src/core/lib/slice/slice_internal.h"
 #include "src/core/lib/surface/call.h"
diff --git a/src/core/ext/load_reporting/load_reporting.h b/src/core/ext/filters/load_reporting/load_reporting.h
similarity index 93%
rename from src/core/ext/load_reporting/load_reporting.h
rename to src/core/ext/filters/load_reporting/load_reporting.h
index 22859a5..e05a9dc 100644
--- a/src/core/ext/load_reporting/load_reporting.h
+++ b/src/core/ext/filters/load_reporting/load_reporting.h
@@ -31,8 +31,8 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_LOAD_REPORTING_LOAD_REPORTING_H
-#define GRPC_CORE_EXT_LOAD_REPORTING_LOAD_REPORTING_H
+#ifndef GRPC_CORE_EXT_FILTERS_LOAD_REPORTING_LOAD_REPORTING_H
+#define GRPC_CORE_EXT_FILTERS_LOAD_REPORTING_LOAD_REPORTING_H
 
 #include <grpc/impl/codegen/grpc_types.h>
 
@@ -70,4 +70,4 @@
 /** Return a \a grpc_arg enabling load reporting */
 grpc_arg grpc_load_reporting_enable_arg();
 
-#endif /* GRPC_CORE_EXT_LOAD_REPORTING_LOAD_REPORTING_H */
+#endif /* GRPC_CORE_EXT_FILTERS_LOAD_REPORTING_LOAD_REPORTING_H */
diff --git a/src/core/ext/load_reporting/load_reporting_filter.c b/src/core/ext/filters/load_reporting/load_reporting_filter.c
similarity index 98%
rename from src/core/ext/load_reporting/load_reporting_filter.c
rename to src/core/ext/filters/load_reporting/load_reporting_filter.c
index 2e7b358..57b25d0 100644
--- a/src/core/ext/load_reporting/load_reporting_filter.c
+++ b/src/core/ext/filters/load_reporting/load_reporting_filter.c
@@ -39,8 +39,8 @@
 #include <grpc/support/string_util.h>
 #include <grpc/support/sync.h>
 
-#include "src/core/ext/load_reporting/load_reporting.h"
-#include "src/core/ext/load_reporting/load_reporting_filter.h"
+#include "src/core/ext/filters/load_reporting/load_reporting.h"
+#include "src/core/ext/filters/load_reporting/load_reporting_filter.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/profiling/timers.h"
 #include "src/core/lib/slice/slice_internal.h"
diff --git a/src/core/ext/load_reporting/load_reporting_filter.h b/src/core/ext/filters/load_reporting/load_reporting_filter.h
similarity index 85%
rename from src/core/ext/load_reporting/load_reporting_filter.h
rename to src/core/ext/filters/load_reporting/load_reporting_filter.h
index 160ed32..da884a1 100644
--- a/src/core/ext/load_reporting/load_reporting_filter.h
+++ b/src/core/ext/filters/load_reporting/load_reporting_filter.h
@@ -31,12 +31,12 @@
  *
  */
 
-#ifndef GRPC_CORE_EXT_LOAD_REPORTING_LOAD_REPORTING_FILTER_H
-#define GRPC_CORE_EXT_LOAD_REPORTING_LOAD_REPORTING_FILTER_H
+#ifndef GRPC_CORE_EXT_FILTERS_LOAD_REPORTING_LOAD_REPORTING_FILTER_H
+#define GRPC_CORE_EXT_FILTERS_LOAD_REPORTING_LOAD_REPORTING_FILTER_H
 
-#include "src/core/ext/load_reporting/load_reporting.h"
+#include "src/core/ext/filters/load_reporting/load_reporting.h"
 #include "src/core/lib/channel/channel_stack.h"
 
 extern const grpc_channel_filter grpc_load_reporting_filter;
 
-#endif /* GRPC_CORE_EXT_LOAD_REPORTING_LOAD_REPORTING_FILTER_H */
+#endif /* GRPC_CORE_EXT_FILTERS_LOAD_REPORTING_LOAD_REPORTING_FILTER_H */
diff --git a/src/core/lib/channel/max_age_filter.c b/src/core/ext/filters/max_age/max_age_filter.c
similarity index 87%
rename from src/core/lib/channel/max_age_filter.c
rename to src/core/ext/filters/max_age/max_age_filter.c
index c254814..f858220 100644
--- a/src/core/lib/channel/max_age_filter.c
+++ b/src/core/ext/filters/max_age/max_age_filter.c
@@ -37,13 +37,16 @@
 #include <string.h>
 
 #include "src/core/lib/channel/channel_args.h"
+#include "src/core/lib/channel/channel_stack_builder.h"
 #include "src/core/lib/iomgr/timer.h"
+#include "src/core/lib/surface/channel_init.h"
 #include "src/core/lib/transport/http2_errors.h"
 #include "src/core/lib/transport/service_config.h"
 
 #define DEFAULT_MAX_CONNECTION_AGE_MS INT_MAX
 #define DEFAULT_MAX_CONNECTION_AGE_GRACE_MS INT_MAX
 #define DEFAULT_MAX_CONNECTION_IDLE_MS INT_MAX
+#define MAX_CONNECTION_AGE_JITTER 0.1
 
 typedef struct channel_data {
   /* We take a reference to the channel stack for the timer callback */
@@ -252,6 +255,21 @@
   }
 }
 
+/* A random jitter of +/-10% will be added to MAX_CONNECTION_AGE to spread out
+   connection storms. Note that the MAX_CONNECTION_AGE option without jitter
+   would not create connection storms by itself, but if there happened to be a
+   connection storm it could cause it to repeat at a fixed period. */
+static int add_random_max_connection_age_jitter(int value) {
+  /* generate a random number between 1 - MAX_CONNECTION_AGE_JITTER and
+     1 + MAX_CONNECTION_AGE_JITTER */
+  double multiplier = rand() * MAX_CONNECTION_AGE_JITTER * 2.0 / RAND_MAX +
+                      1.0 - MAX_CONNECTION_AGE_JITTER;
+  double result = multiplier * value;
+  /* INT_MAX - 0.5 converts the value to float, so that result will not be
+     cast to int implicitly before the comparison. */
+  return result > INT_MAX - 0.5 ? INT_MAX : (int)result;
+}
+
 /* Constructor for call_data. */
 static grpc_error* init_call_elem(grpc_exec_ctx* exec_ctx,
                                   grpc_call_element* elem,
@@ -281,7 +299,9 @@
   chand->max_connection_age =
       DEFAULT_MAX_CONNECTION_AGE_MS == INT_MAX
           ? gpr_inf_future(GPR_TIMESPAN)
-          : gpr_time_from_millis(DEFAULT_MAX_CONNECTION_AGE_MS, GPR_TIMESPAN);
+          : gpr_time_from_millis(add_random_max_connection_age_jitter(
+                                     DEFAULT_MAX_CONNECTION_AGE_MS),
+                                 GPR_TIMESPAN);
   chand->max_connection_age_grace =
       DEFAULT_MAX_CONNECTION_AGE_GRACE_MS == INT_MAX
           ? gpr_inf_future(GPR_TIMESPAN)
@@ -298,8 +318,10 @@
           &args->channel_args->args[i],
           (grpc_integer_options){DEFAULT_MAX_CONNECTION_AGE_MS, 1, INT_MAX});
       chand->max_connection_age =
-          value == INT_MAX ? gpr_inf_future(GPR_TIMESPAN)
-                           : gpr_time_from_millis(value, GPR_TIMESPAN);
+          value == INT_MAX
+              ? gpr_inf_future(GPR_TIMESPAN)
+              : gpr_time_from_millis(
+                    add_random_max_connection_age_jitter(value), GPR_TIMESPAN);
     } else if (0 == strcmp(args->channel_args->args[i].key,
                            GRPC_ARG_MAX_CONNECTION_AGE_GRACE_MS)) {
       const int value = grpc_channel_arg_get_integer(
@@ -384,3 +406,34 @@
     grpc_call_next_get_peer,
     grpc_channel_next_get_info,
     "max_age"};
+
+static bool maybe_add_max_age_filter(grpc_exec_ctx* exec_ctx,
+                                     grpc_channel_stack_builder* builder,
+                                     void* arg) {
+  const grpc_channel_args* channel_args =
+      grpc_channel_stack_builder_get_channel_arguments(builder);
+  const grpc_arg* a =
+      grpc_channel_args_find(channel_args, GRPC_ARG_MAX_CONNECTION_AGE_MS);
+  bool enable = false;
+  if (a != NULL && a->type == GRPC_ARG_INTEGER && a->value.integer != INT_MAX) {
+    enable = true;
+  }
+  a = grpc_channel_args_find(channel_args, GRPC_ARG_MAX_CONNECTION_IDLE_MS);
+  if (a != NULL && a->type == GRPC_ARG_INTEGER && a->value.integer != INT_MAX) {
+    enable = true;
+  }
+  if (enable) {
+    return grpc_channel_stack_builder_prepend_filter(
+        builder, &grpc_max_age_filter, NULL, NULL);
+  } else {
+    return true;
+  }
+}
+
+void grpc_max_age_filter_init(void) {
+  grpc_channel_init_register_stage(GRPC_SERVER_CHANNEL,
+                                   GRPC_CHANNEL_INIT_BUILTIN_PRIORITY,
+                                   maybe_add_max_age_filter, NULL);
+}
+
+void grpc_max_age_filter_shutdown(void) {}
diff --git a/src/core/lib/channel/max_age_filter.h b/src/core/ext/filters/max_age/max_age_filter.h
similarity index 90%
rename from src/core/lib/channel/max_age_filter.h
rename to src/core/ext/filters/max_age/max_age_filter.h
index 93e357a..ed20152 100644
--- a/src/core/lib/channel/max_age_filter.h
+++ b/src/core/ext/filters/max_age/max_age_filter.h
@@ -29,11 +29,11 @@
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 //
 
-#ifndef GRPC_CORE_LIB_CHANNEL_MAX_AGE_FILTER_H
-#define GRPC_CORE_LIB_CHANNEL_MAX_AGE_FILTER_H
+#ifndef GRPC_CORE_EXT_FILTERS_MAX_AGE_MAX_AGE_FILTER_H
+#define GRPC_CORE_EXT_FILTERS_MAX_AGE_MAX_AGE_FILTER_H
 
 #include "src/core/lib/channel/channel_stack.h"
 
 extern const grpc_channel_filter grpc_max_age_filter;
 
-#endif /* GRPC_CORE_LIB_CHANNEL_MAX_AGE_FILTER_H */
+#endif /* GRPC_CORE_EXT_FILTERS_MAX_AGE_MAX_AGE_FILTER_H */
diff --git a/src/core/ext/transport/chttp2/client/chttp2_connector.c b/src/core/ext/transport/chttp2/client/chttp2_connector.c
index 2b226c1..e645eda 100644
--- a/src/core/ext/transport/chttp2/client/chttp2_connector.c
+++ b/src/core/ext/transport/chttp2/client/chttp2_connector.c
@@ -41,9 +41,9 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/ext/client_channel/connector.h"
-#include "src/core/ext/client_channel/http_connect_handshaker.h"
-#include "src/core/ext/client_channel/subchannel.h"
+#include "src/core/ext/filters/client_channel/connector.h"
+#include "src/core/ext/filters/client_channel/http_connect_handshaker.h"
+#include "src/core/ext/filters/client_channel/subchannel.h"
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/channel/handshaker.h"
diff --git a/src/core/ext/transport/chttp2/client/chttp2_connector.h b/src/core/ext/transport/chttp2/client/chttp2_connector.h
index f5d1025..d55f6ed 100644
--- a/src/core/ext/transport/chttp2/client/chttp2_connector.h
+++ b/src/core/ext/transport/chttp2/client/chttp2_connector.h
@@ -34,7 +34,7 @@
 #ifndef GRPC_CORE_EXT_TRANSPORT_CHTTP2_CLIENT_CHTTP2_CONNECTOR_H
 #define GRPC_CORE_EXT_TRANSPORT_CHTTP2_CLIENT_CHTTP2_CONNECTOR_H
 
-#include "src/core/ext/client_channel/connector.h"
+#include "src/core/ext/filters/client_channel/connector.h"
 
 grpc_connector* grpc_chttp2_connector_create();
 
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 067ac35..9c8505d 100644
--- a/src/core/ext/transport/chttp2/client/insecure/channel_create.c
+++ b/src/core/ext/transport/chttp2/client/insecure/channel_create.c
@@ -38,8 +38,8 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/ext/client_channel/client_channel.h"
-#include "src/core/ext/client_channel/resolver_registry.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
 #include "src/core/ext/transport/chttp2/client/chttp2_connector.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/surface/api_trace.h"
diff --git a/src/core/ext/transport/chttp2/client/secure/secure_channel_create.c b/src/core/ext/transport/chttp2/client/secure/secure_channel_create.c
index f0c241d..119adfa 100644
--- a/src/core/ext/transport/chttp2/client/secure/secure_channel_create.c
+++ b/src/core/ext/transport/chttp2/client/secure/secure_channel_create.c
@@ -38,9 +38,9 @@
 #include <grpc/support/alloc.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/ext/client_channel/client_channel.h"
-#include "src/core/ext/client_channel/resolver_registry.h"
-#include "src/core/ext/client_channel/uri_parser.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
+#include "src/core/ext/filters/client_channel/uri_parser.h"
 #include "src/core/ext/transport/chttp2/client/chttp2_connector.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/iomgr/sockaddr_utils.h"
diff --git a/src/core/ext/transport/chttp2/transport/chttp2_transport.c b/src/core/ext/transport/chttp2/transport/chttp2_transport.c
index a8e320d..e2816b0 100644
--- a/src/core/ext/transport/chttp2/transport/chttp2_transport.c
+++ b/src/core/ext/transport/chttp2/transport/chttp2_transport.c
@@ -69,13 +69,21 @@
 #define MAX_WRITE_BUFFER_SIZE (64 * 1024 * 1024)
 #define DEFAULT_MAX_HEADER_LIST_SIZE (16 * 1024)
 
-#define DEFAULT_CLIENT_KEEPALIVE_TIME_S INT_MAX
-#define DEFAULT_CLIENT_KEEPALIVE_TIMEOUT_S 20
+#define DEFAULT_CLIENT_KEEPALIVE_TIME_MS INT_MAX
+#define DEFAULT_CLIENT_KEEPALIVE_TIMEOUT_MS 20000 /* 20 seconds */
+#define DEFAULT_SERVER_KEEPALIVE_TIME_MS 7200000  /* 2 hours */
+#define DEFAULT_SERVER_KEEPALIVE_TIMEOUT_MS 20000 /* 20 seconds */
 #define DEFAULT_KEEPALIVE_PERMIT_WITHOUT_CALLS false
+#define KEEPALIVE_TIME_BACKOFF_MULTIPLIER 2
 
-static int g_default_client_keepalive_time_s = DEFAULT_CLIENT_KEEPALIVE_TIME_S;
-static int g_default_client_keepalive_timeout_s =
-    DEFAULT_CLIENT_KEEPALIVE_TIMEOUT_S;
+static int g_default_client_keepalive_time_ms =
+    DEFAULT_CLIENT_KEEPALIVE_TIME_MS;
+static int g_default_client_keepalive_timeout_ms =
+    DEFAULT_CLIENT_KEEPALIVE_TIMEOUT_MS;
+static int g_default_server_keepalive_time_ms =
+    DEFAULT_SERVER_KEEPALIVE_TIME_MS;
+static int g_default_server_keepalive_timeout_ms =
+    DEFAULT_SERVER_KEEPALIVE_TIMEOUT_MS;
 static bool g_default_keepalive_permit_without_calls =
     DEFAULT_KEEPALIVE_PERMIT_WITHOUT_CALLS;
 
@@ -153,6 +161,8 @@
 
 #define DEFAULT_MIN_TIME_BETWEEN_PINGS_MS 0
 #define DEFAULT_MAX_PINGS_BETWEEN_DATA 3
+#define DEFAULT_MAX_PING_STRIKES 2
+#define DEFAULT_MIN_PING_INTERVAL_WITHOUT_DATA_MS 300000 /* 5 minutes */
 
 /** keepalive-relevant functions */
 static void init_keepalive_ping_locked(grpc_exec_ctx *exec_ctx, void *arg,
@@ -351,19 +361,35 @@
       .max_pings_without_data = DEFAULT_MAX_PINGS_BETWEEN_DATA,
       .min_time_between_pings =
           gpr_time_from_millis(DEFAULT_MIN_TIME_BETWEEN_PINGS_MS, GPR_TIMESPAN),
+      .max_ping_strikes = DEFAULT_MAX_PING_STRIKES,
+      .min_ping_interval_without_data = gpr_time_from_millis(
+          DEFAULT_MIN_PING_INTERVAL_WITHOUT_DATA_MS, GPR_TIMESPAN),
   };
 
-  /* client-side keepalive setting */
-  t->keepalive_time =
-      g_default_client_keepalive_time_s == INT_MAX
-          ? gpr_inf_future(GPR_TIMESPAN)
-          : gpr_time_from_seconds(g_default_client_keepalive_time_s,
-                                  GPR_TIMESPAN);
-  t->keepalive_timeout =
-      g_default_client_keepalive_timeout_s == INT_MAX
-          ? gpr_inf_future(GPR_TIMESPAN)
-          : gpr_time_from_seconds(g_default_client_keepalive_timeout_s,
-                                  GPR_TIMESPAN);
+  /* Keepalive setting */
+  if (t->is_client) {
+    t->keepalive_time =
+        g_default_client_keepalive_time_ms == INT_MAX
+            ? gpr_inf_future(GPR_TIMESPAN)
+            : gpr_time_from_millis(g_default_client_keepalive_time_ms,
+                                   GPR_TIMESPAN);
+    t->keepalive_timeout =
+        g_default_client_keepalive_timeout_ms == INT_MAX
+            ? gpr_inf_future(GPR_TIMESPAN)
+            : gpr_time_from_millis(g_default_client_keepalive_timeout_ms,
+                                   GPR_TIMESPAN);
+  } else {
+    t->keepalive_time =
+        g_default_server_keepalive_time_ms == INT_MAX
+            ? gpr_inf_future(GPR_TIMESPAN)
+            : gpr_time_from_millis(g_default_server_keepalive_time_ms,
+                                   GPR_TIMESPAN);
+    t->keepalive_timeout =
+        g_default_server_keepalive_timeout_ms == INT_MAX
+            ? gpr_inf_future(GPR_TIMESPAN)
+            : gpr_time_from_millis(g_default_server_keepalive_timeout_ms,
+                                   GPR_TIMESPAN);
+  }
   t->keepalive_permit_without_calls = g_default_keepalive_permit_without_calls;
 
   if (channel_args) {
@@ -397,6 +423,11 @@
             &channel_args->args[i],
             (grpc_integer_options){DEFAULT_MAX_PINGS_BETWEEN_DATA, 0, INT_MAX});
       } else if (0 == strcmp(channel_args->args[i].key,
+                             GRPC_ARG_HTTP2_MAX_PING_STRIKES)) {
+        t->ping_policy.max_ping_strikes = grpc_channel_arg_get_integer(
+            &channel_args->args[i],
+            (grpc_integer_options){DEFAULT_MAX_PING_STRIKES, 0, INT_MAX});
+      } else if (0 == strcmp(channel_args->args[i].key,
                              GRPC_ARG_HTTP2_MIN_TIME_BETWEEN_PINGS_MS)) {
         t->ping_policy.min_time_between_pings = gpr_time_from_millis(
             grpc_channel_arg_get_integer(
@@ -404,6 +435,15 @@
                 (grpc_integer_options){DEFAULT_MIN_TIME_BETWEEN_PINGS_MS, 0,
                                        INT_MAX}),
             GPR_TIMESPAN);
+      } else if (0 ==
+                 strcmp(channel_args->args[i].key,
+                        GRPC_ARG_HTTP2_MIN_PING_INTERVAL_WITHOUT_DATA_MS)) {
+        t->ping_policy.min_ping_interval_without_data = gpr_time_from_millis(
+            grpc_channel_arg_get_integer(
+                &channel_args->args[i],
+                (grpc_integer_options){
+                    DEFAULT_MIN_PING_INTERVAL_WITHOUT_DATA_MS, 0, INT_MAX}),
+            GPR_TIMESPAN);
       } else if (0 == strcmp(channel_args->args[i].key,
                              GRPC_ARG_HTTP2_WRITE_BUFFER_SIZE)) {
         t->write_buffer_size = (uint32_t)grpc_channel_arg_get_integer(
@@ -414,23 +454,27 @@
         t->enable_bdp_probe = grpc_channel_arg_get_integer(
             &channel_args->args[i], (grpc_integer_options){1, 0, 1});
       } else if (0 == strcmp(channel_args->args[i].key,
-                             GRPC_ARG_CLIENT_KEEPALIVE_TIME_S)) {
+                             GRPC_ARG_KEEPALIVE_TIME_MS)) {
         const int value = grpc_channel_arg_get_integer(
             &channel_args->args[i],
-            (grpc_integer_options){g_default_client_keepalive_time_s, 1,
-                                   INT_MAX});
+            (grpc_integer_options){t->is_client
+                                       ? g_default_client_keepalive_time_ms
+                                       : g_default_server_keepalive_time_ms,
+                                   1, INT_MAX});
         t->keepalive_time = value == INT_MAX
                                 ? gpr_inf_future(GPR_TIMESPAN)
-                                : gpr_time_from_seconds(value, GPR_TIMESPAN);
+                                : gpr_time_from_millis(value, GPR_TIMESPAN);
       } else if (0 == strcmp(channel_args->args[i].key,
-                             GRPC_ARG_CLIENT_KEEPALIVE_TIMEOUT_S)) {
+                             GRPC_ARG_KEEPALIVE_TIMEOUT_MS)) {
         const int value = grpc_channel_arg_get_integer(
             &channel_args->args[i],
-            (grpc_integer_options){g_default_client_keepalive_timeout_s, 0,
-                                   INT_MAX});
+            (grpc_integer_options){t->is_client
+                                       ? g_default_client_keepalive_timeout_ms
+                                       : g_default_server_keepalive_timeout_ms,
+                                   0, INT_MAX});
         t->keepalive_timeout = value == INT_MAX
                                    ? gpr_inf_future(GPR_TIMESPAN)
-                                   : gpr_time_from_seconds(value, GPR_TIMESPAN);
+                                   : gpr_time_from_millis(value, GPR_TIMESPAN);
       } else if (0 == strcmp(channel_args->args[i].key,
                              GRPC_ARG_KEEPALIVE_PERMIT_WITHOUT_CALLS)) {
         t->keepalive_permit_without_calls =
@@ -488,8 +532,11 @@
       t->ping_policy.max_pings_without_data;
   t->ping_state.is_delayed_ping_timer_set = false;
 
-  /** Start client-side keepalive pings */
-  if (t->is_client) {
+  t->ping_recv_state.last_ping_recv_time = gpr_inf_past(GPR_CLOCK_MONOTONIC);
+  t->ping_recv_state.ping_strikes = 0;
+
+  /* Start keepalive pings */
+  if (gpr_time_cmp(t->keepalive_time, gpr_inf_future(GPR_TIMESPAN)) != 0) {
     t->keepalive_state = GRPC_CHTTP2_KEEPALIVE_STATE_WAITING;
     GRPC_CHTTP2_REF_TRANSPORT(t, "init keepalive ping");
     grpc_timer_init(
@@ -918,6 +965,26 @@
   // GRPC_CHTTP2_IF_TRACING(
   //     gpr_log(GPR_DEBUG, "got goaway [%d]: %s", goaway_error, msg));
   t->seen_goaway = 1;
+
+  /* When a client receives a GOAWAY with error code ENHANCE_YOUR_CALM and debug
+   * data equal to “too_many_pings”, it should log the occurrence at a log level
+   * that is enabled by default and double the configured KEEPALIVE_TIME used
+   * for new connections on that channel. */
+  if (t->is_client && goaway_error == GRPC_HTTP2_ENHANCE_YOUR_CALM &&
+      grpc_slice_str_cmp(goaway_text, "too_many_pings") == 0) {
+    gpr_log(GPR_ERROR,
+            "Received a GOAWAY with error code ENHANCE_YOUR_CALM and debug "
+            "data equal to \"too_many_pings\"");
+    double current_keepalive_time_ms =
+        gpr_timespec_to_micros(t->keepalive_time) / 1000;
+    t->keepalive_time =
+        current_keepalive_time_ms > INT_MAX / KEEPALIVE_TIME_BACKOFF_MULTIPLIER
+            ? gpr_inf_future(GPR_TIMESPAN)
+            : gpr_time_from_millis((int64_t)(current_keepalive_time_ms *
+                                             KEEPALIVE_TIME_BACKOFF_MULTIPLIER),
+                                   GPR_TIMESPAN);
+  }
+
   /* lie: use transient failure from the transport to indicate goaway has been
    * received */
   connectivity_state_set(
@@ -1459,6 +1526,21 @@
   GRPC_ERROR_UNREF(error);
 }
 
+void grpc_chttp2_add_ping_strike(grpc_exec_ctx *exec_ctx,
+                                 grpc_chttp2_transport *t) {
+  gpr_log(GPR_DEBUG, "PING strike");
+  if (++t->ping_recv_state.ping_strikes > t->ping_policy.max_ping_strikes &&
+      t->ping_policy.max_ping_strikes != 0) {
+    send_goaway(exec_ctx, t,
+                grpc_error_set_int(
+                    GRPC_ERROR_CREATE_FROM_STATIC_STRING("too_many_pings"),
+                    GRPC_ERROR_INT_HTTP2_ERROR, GRPC_HTTP2_ENHANCE_YOUR_CALM));
+    /*The transport will be closed after the write is done */
+    close_transport_locked(
+        exec_ctx, t, GRPC_ERROR_CREATE_FROM_STATIC_STRING("Too many pings"));
+  }
+}
+
 static void perform_transport_op_locked(grpc_exec_ctx *exec_ctx,
                                         void *stream_op,
                                         grpc_error *error_ignored) {
@@ -2125,6 +2207,10 @@
   if (grpc_http_trace) {
     gpr_log(GPR_DEBUG, "%s: Start BDP ping", t->peer_string);
   }
+  /* Reset the keepalive ping timer */
+  if (t->keepalive_state == GRPC_CHTTP2_KEEPALIVE_STATE_WAITING) {
+    grpc_timer_cancel(exec_ctx, &t->keepalive_ping_timer);
+  }
   grpc_bdp_estimator_start_ping(&t->bdp_estimator);
 }
 
@@ -2139,20 +2225,32 @@
   GRPC_CHTTP2_UNREF_TRANSPORT(exec_ctx, t, "bdp_ping");
 }
 
-void grpc_chttp2_config_default_keepalive_args(grpc_channel_args *args) {
+void grpc_chttp2_config_default_keepalive_args(grpc_channel_args *args,
+                                               bool is_client) {
   size_t i;
   if (args) {
     for (i = 0; i < args->num_args; i++) {
-      if (0 == strcmp(args->args[i].key, GRPC_ARG_CLIENT_KEEPALIVE_TIME_S)) {
-        g_default_client_keepalive_time_s = grpc_channel_arg_get_integer(
-            &args->args[i], (grpc_integer_options){
-                                g_default_client_keepalive_time_s, 1, INT_MAX});
-      } else if (0 == strcmp(args->args[i].key,
-                             GRPC_ARG_CLIENT_KEEPALIVE_TIMEOUT_S)) {
-        g_default_client_keepalive_timeout_s = grpc_channel_arg_get_integer(
+      if (0 == strcmp(args->args[i].key, GRPC_ARG_KEEPALIVE_TIME_MS)) {
+        const int value = grpc_channel_arg_get_integer(
             &args->args[i],
-            (grpc_integer_options){g_default_client_keepalive_timeout_s, 0,
+            (grpc_integer_options){g_default_client_keepalive_time_ms, 1,
                                    INT_MAX});
+        if (is_client) {
+          g_default_client_keepalive_time_ms = value;
+        } else {
+          g_default_server_keepalive_time_ms = value;
+        }
+      } else if (0 ==
+                 strcmp(args->args[i].key, GRPC_ARG_KEEPALIVE_TIMEOUT_MS)) {
+        const int value = grpc_channel_arg_get_integer(
+            &args->args[i],
+            (grpc_integer_options){g_default_client_keepalive_timeout_ms, 0,
+                                   INT_MAX});
+        if (is_client) {
+          g_default_client_keepalive_timeout_ms = value;
+        } else {
+          g_default_server_keepalive_timeout_ms = value;
+        }
       } else if (0 == strcmp(args->args[i].key,
                              GRPC_ARG_KEEPALIVE_PERMIT_WITHOUT_CALLS)) {
         g_default_keepalive_permit_without_calls =
@@ -2170,7 +2268,8 @@
   grpc_chttp2_transport *t = arg;
   GPR_ASSERT(t->keepalive_state == GRPC_CHTTP2_KEEPALIVE_STATE_WAITING);
   if (error == GRPC_ERROR_NONE && !(t->destroying || t->closed)) {
-    if (t->keepalive_permit_without_calls || t->stream_map.count > 0) {
+    if (t->keepalive_permit_without_calls ||
+        grpc_chttp2_stream_map_size(&t->stream_map) > 0) {
       t->keepalive_state = GRPC_CHTTP2_KEEPALIVE_STATE_PINGING;
       GRPC_CHTTP2_REF_TRANSPORT(t, "keepalive ping end");
       send_ping_locked(exec_ctx, t, GRPC_CHTTP2_PING_ON_NEXT_WRITE,
@@ -2183,6 +2282,13 @@
           gpr_time_add(gpr_now(GPR_CLOCK_MONOTONIC), t->keepalive_time),
           &t->init_keepalive_ping_locked, gpr_now(GPR_CLOCK_MONOTONIC));
     }
+  } else if (error == GRPC_ERROR_CANCELLED && !(t->destroying || t->closed)) {
+    /* The keepalive ping timer may be cancelled by bdp */
+    GRPC_CHTTP2_REF_TRANSPORT(t, "init keepalive ping");
+    grpc_timer_init(
+        exec_ctx, &t->keepalive_ping_timer,
+        gpr_time_add(gpr_now(GPR_CLOCK_MONOTONIC), t->keepalive_time),
+        &t->init_keepalive_ping_locked, gpr_now(GPR_CLOCK_MONOTONIC));
   }
   GRPC_CHTTP2_UNREF_TRANSPORT(exec_ctx, t, "init keepalive ping");
 }
@@ -2224,8 +2330,8 @@
                                               "keepalive watchdog timeout"));
     }
   } else {
-    /** The watchdog timer should have been cancelled by
-        finish_keepalive_ping_locked. */
+    /* The watchdog timer should have been cancelled by
+     * finish_keepalive_ping_locked. */
     if (error != GRPC_ERROR_CANCELLED) {
       gpr_log(GPR_ERROR, "keepalive_ping_end state error: %d (expect: %d)",
               t->keepalive_state, GRPC_CHTTP2_KEEPALIVE_STATE_PINGING);
diff --git a/src/core/ext/transport/chttp2/transport/frame_ping.c b/src/core/ext/transport/chttp2/transport/frame_ping.c
index 46dafdb..6016e43 100644
--- a/src/core/ext/transport/chttp2/transport/frame_ping.c
+++ b/src/core/ext/transport/chttp2/transport/frame_ping.c
@@ -103,6 +103,28 @@
     if (p->is_ack) {
       grpc_chttp2_ack_ping(exec_ctx, t, p->opaque_8bytes);
     } else {
+      if (!t->is_client) {
+        gpr_timespec now = gpr_now(GPR_CLOCK_MONOTONIC);
+        gpr_timespec next_allowed_ping =
+            gpr_time_add(t->ping_recv_state.last_ping_recv_time,
+                         t->ping_policy.min_ping_interval_without_data);
+
+        if (t->keepalive_permit_without_calls == 0 &&
+            grpc_chttp2_stream_map_size(&t->stream_map) == 0) {
+          /* According to RFC1122, the interval of TCP Keep-Alive is default to
+             no less than two hours. When there is no outstanding streams, we
+             restrict the number of PINGS equivalent to TCP Keep-Alive. */
+          next_allowed_ping =
+              gpr_time_add(t->ping_recv_state.last_ping_recv_time,
+                           gpr_time_from_seconds(7200, GPR_TIMESPAN));
+        }
+
+        if (gpr_time_cmp(next_allowed_ping, now) > 0) {
+          grpc_chttp2_add_ping_strike(exec_ctx, t);
+        }
+
+        t->ping_recv_state.last_ping_recv_time = now;
+      }
       if (!g_disable_ping_ack) {
         if (t->ping_ack_count == t->ping_ack_capacity) {
           t->ping_ack_capacity = GPR_MAX(t->ping_ack_capacity * 3 / 2, 3);
diff --git a/src/core/ext/transport/chttp2/transport/internal.h b/src/core/ext/transport/chttp2/transport/internal.h
index 50993e4..6eb848b 100644
--- a/src/core/ext/transport/chttp2/transport/internal.h
+++ b/src/core/ext/transport/chttp2/transport/internal.h
@@ -97,6 +97,8 @@
 typedef struct {
   gpr_timespec min_time_between_pings;
   int max_pings_without_data;
+  int max_ping_strikes;
+  gpr_timespec min_ping_interval_without_data;
 } grpc_chttp2_repeated_ping_policy;
 
 typedef struct {
@@ -106,6 +108,11 @@
   bool is_delayed_ping_timer_set;
 } grpc_chttp2_repeated_ping_state;
 
+typedef struct {
+  gpr_timespec last_ping_recv_time;
+  int ping_strikes;
+} grpc_chttp2_server_ping_recv_state;
+
 /* deframer state for the overall http2 stream of bytes */
 typedef enum {
   /* prefix: one entry per http2 connection prefix byte */
@@ -316,6 +323,7 @@
   size_t ping_ack_count;
   size_t ping_ack_capacity;
   uint64_t *ping_acks;
+  grpc_chttp2_server_ping_recv_state ping_recv_state;
 
   /** parser for headers */
   grpc_chttp2_hpack_parser hpack_parser;
@@ -792,6 +800,13 @@
 void grpc_chttp2_ack_ping(grpc_exec_ctx *exec_ctx, grpc_chttp2_transport *t,
                           uint64_t id);
 
+/** Add a new ping strike to ping_recv_state.ping_strikes. If
+    ping_recv_state.ping_strikes > ping_policy.max_ping_strikes, it sends GOAWAY
+    with error code ENHANCE_YOUR_CALM and additional debug data resembling
+    “too_many_pings” followed by immediately closing the connection. */
+void grpc_chttp2_add_ping_strike(grpc_exec_ctx *exec_ctx,
+                                 grpc_chttp2_transport *t);
+
 typedef enum {
   /* don't initiate a transport write, but piggyback on the next one */
   GRPC_CHTTP2_STREAM_WRITE_PIGGYBACK,
@@ -831,6 +846,7 @@
 
 /** Set the default keepalive configurations, must only be called at
     initialization */
-void grpc_chttp2_config_default_keepalive_args(grpc_channel_args *args);
+void grpc_chttp2_config_default_keepalive_args(grpc_channel_args *args,
+                                               bool is_client);
 
 #endif /* GRPC_CORE_EXT_TRANSPORT_CHTTP2_TRANSPORT_INTERNAL_H */
diff --git a/src/core/ext/transport/chttp2/transport/writing.c b/src/core/ext/transport/chttp2/transport/writing.c
index 0869056..be41b3d 100644
--- a/src/core/ext/transport/chttp2/transport/writing.c
+++ b/src/core/ext/transport/chttp2/transport/writing.c
@@ -229,6 +229,11 @@
       now_writing = true;
       t->ping_state.pings_before_data_required =
           t->ping_policy.max_pings_without_data;
+      if (!t->is_client) {
+        t->ping_recv_state.last_ping_recv_time =
+            gpr_inf_past(GPR_CLOCK_MONOTONIC);
+        t->ping_recv_state.ping_strikes = 0;
+      }
     }
     /* send any window updates */
     if (s->announce_window > 0) {
@@ -238,6 +243,11 @@
                                 s->id, s->announce_window, &s->stats.outgoing));
       t->ping_state.pings_before_data_required =
           t->ping_policy.max_pings_without_data;
+      if (!t->is_client) {
+        t->ping_recv_state.last_ping_recv_time =
+            gpr_inf_past(GPR_CLOCK_MONOTONIC);
+        t->ping_recv_state.ping_strikes = 0;
+      }
       GRPC_CHTTP2_FLOW_DEBIT_STREAM("write", t, s, announce_window, announce);
     }
     if (sent_initial_metadata) {
@@ -270,6 +280,11 @@
                                            send_bytes);
           t->ping_state.pings_before_data_required =
               t->ping_policy.max_pings_without_data;
+          if (!t->is_client) {
+            t->ping_recv_state.last_ping_recv_time =
+                gpr_inf_past(GPR_CLOCK_MONOTONIC);
+            t->ping_recv_state.ping_strikes = 0;
+          }
           if (is_last_frame) {
             s->send_trailing_metadata = NULL;
             s->sent_trailing_metadata = true;
@@ -345,6 +360,11 @@
                                           0, announced, &throwaway_stats));
     t->ping_state.pings_before_data_required =
         t->ping_policy.max_pings_without_data;
+    if (!t->is_client) {
+      t->ping_recv_state.last_ping_recv_time =
+          gpr_inf_past(GPR_CLOCK_MONOTONIC);
+      t->ping_recv_state.ping_strikes = 0;
+    }
   }
 
   for (size_t i = 0; i < t->ping_ack_count; i++) {
diff --git a/src/core/ext/transport/cronet/transport/cronet_transport.c b/src/core/ext/transport/cronet/transport/cronet_transport.c
index 9bd8914..0b91895 100644
--- a/src/core/ext/transport/cronet/transport/cronet_transport.c
+++ b/src/core/ext/transport/cronet/transport/cronet_transport.c
@@ -1178,7 +1178,7 @@
       if (stream_state->rs.compressed) {
         stream_state->rs.sbs.base.flags = GRPC_WRITE_INTERNAL_COMPRESS;
       }
-      *((grpc_byte_buffer **)stream_op->recv_message) =
+      *((grpc_byte_buffer **)stream_op->payload->recv_message.recv_message) =
           (grpc_byte_buffer *)&stream_state->rs.sbs;
       grpc_closure_sched(exec_ctx,
                          stream_op->payload->recv_message.recv_message_ready,
diff --git a/src/core/lib/channel/channel_args.c b/src/core/lib/channel/channel_args.c
index 1a099ac..a6d124c 100644
--- a/src/core/lib/channel/channel_args.c
+++ b/src/core/lib/channel/channel_args.c
@@ -346,3 +346,10 @@
   }
   return arg->value.integer;
 }
+
+bool grpc_channel_args_want_minimal_stack(const grpc_channel_args *args) {
+  const grpc_arg *arg = grpc_channel_args_find(args, GRPC_ARG_MINIMAL_STACK);
+  if (arg == NULL) return false;
+  if (arg->type == GRPC_ARG_INTEGER && arg->value.integer == 0) return false;
+  return true;
+}
diff --git a/src/core/lib/channel/channel_args.h b/src/core/lib/channel/channel_args.h
index 5c7d31f..158cda5 100644
--- a/src/core/lib/channel/channel_args.h
+++ b/src/core/lib/channel/channel_args.h
@@ -113,6 +113,8 @@
 const grpc_arg *grpc_channel_args_find(const grpc_channel_args *args,
                                        const char *name);
 
+bool grpc_channel_args_want_minimal_stack(const grpc_channel_args *args);
+
 typedef struct grpc_integer_options {
   int default_value;  // Return this if value is outside of expected bounds.
   int min_value;
diff --git a/src/core/lib/security/transport/security_handshaker.c b/src/core/lib/security/transport/security_handshaker.c
index 2f39327..509b4b5 100644
--- a/src/core/lib/security/transport/security_handshaker.c
+++ b/src/core/lib/security/transport/security_handshaker.c
@@ -287,12 +287,11 @@
   if (num_left_overs > 0) {
     /* Put the leftovers in our buffer (ownership transfered). */
     if (has_left_overs_in_current_slice) {
-      grpc_slice_buffer_add(
-          &h->left_overs,
-          grpc_slice_split_tail(&h->args->read_buffer->slices[i],
-                                consumed_slice_size));
+      grpc_slice tail = grpc_slice_split_tail(&h->args->read_buffer->slices[i],
+                                              consumed_slice_size);
+      grpc_slice_buffer_add(&h->left_overs, tail);
       /* split_tail above increments refcount. */
-      grpc_slice_unref_internal(exec_ctx, h->args->read_buffer->slices[i]);
+      grpc_slice_unref_internal(exec_ctx, tail);
     }
     grpc_slice_buffer_addn(
         &h->left_overs, &h->args->read_buffer->slices[i + 1],
diff --git a/src/core/lib/surface/init.c b/src/core/lib/surface/init.c
index b46ecac..91bd014 100644
--- a/src/core/lib/surface/init.c
+++ b/src/core/lib/surface/init.c
@@ -47,7 +47,6 @@
 #include "src/core/lib/channel/handshaker_registry.h"
 #include "src/core/lib/channel/http_client_filter.h"
 #include "src/core/lib/channel/http_server_filter.h"
-#include "src/core/lib/channel/max_age_filter.h"
 #include "src/core/lib/channel/message_size_filter.h"
 #include "src/core/lib/debug/trace.h"
 #include "src/core/lib/http/parser.h"
@@ -115,9 +114,6 @@
       GRPC_SERVER_CHANNEL, GRPC_CHANNEL_INIT_BUILTIN_PRIORITY, prepend_filter,
       (void *)&grpc_server_deadline_filter);
   grpc_channel_init_register_stage(
-      GRPC_SERVER_CHANNEL, GRPC_CHANNEL_INIT_BUILTIN_PRIORITY, prepend_filter,
-      (void *)&grpc_max_age_filter);
-  grpc_channel_init_register_stage(
       GRPC_CLIENT_SUBCHANNEL, GRPC_CHANNEL_INIT_BUILTIN_PRIORITY,
       prepend_filter, (void *)&grpc_message_size_filter);
   grpc_channel_init_register_stage(
diff --git a/src/core/plugin_registry/grpc_plugin_registry.c b/src/core/plugin_registry/grpc_plugin_registry.c
index 596e3b7..803a26b 100644
--- a/src/core/plugin_registry/grpc_plugin_registry.c
+++ b/src/core/plugin_registry/grpc_plugin_registry.c
@@ -53,6 +53,8 @@
 extern void grpc_load_reporting_plugin_shutdown(void);
 extern void census_grpc_plugin_init(void);
 extern void census_grpc_plugin_shutdown(void);
+extern void grpc_max_age_filter_init(void);
+extern void grpc_max_age_filter_shutdown(void);
 
 void grpc_register_built_in_plugins(void) {
   grpc_register_plugin(grpc_chttp2_plugin_init,
@@ -75,4 +77,6 @@
                        grpc_load_reporting_plugin_shutdown);
   grpc_register_plugin(census_grpc_plugin_init,
                        census_grpc_plugin_shutdown);
+  grpc_register_plugin(grpc_max_age_filter_init,
+                       grpc_max_age_filter_shutdown);
 }
diff --git a/src/core/plugin_registry/grpc_unsecure_plugin_registry.c b/src/core/plugin_registry/grpc_unsecure_plugin_registry.c
index a05ebcb..e65fc24 100644
--- a/src/core/plugin_registry/grpc_unsecure_plugin_registry.c
+++ b/src/core/plugin_registry/grpc_unsecure_plugin_registry.c
@@ -53,6 +53,8 @@
 extern void grpc_lb_policy_round_robin_shutdown(void);
 extern void census_grpc_plugin_init(void);
 extern void census_grpc_plugin_shutdown(void);
+extern void grpc_max_age_filter_init(void);
+extern void grpc_max_age_filter_shutdown(void);
 
 void grpc_register_built_in_plugins(void) {
   grpc_register_plugin(grpc_chttp2_plugin_init,
@@ -75,4 +77,6 @@
                        grpc_lb_policy_round_robin_shutdown);
   grpc_register_plugin(census_grpc_plugin_init,
                        census_grpc_plugin_shutdown);
+  grpc_register_plugin(grpc_max_age_filter_init,
+                       grpc_max_age_filter_shutdown);
 }
diff --git a/src/cpp/common/core_codegen.cc b/src/cpp/common/core_codegen.cc
index 36e4c89..43dffe7 100644
--- a/src/cpp/common/core_codegen.cc
+++ b/src/cpp/common/core_codegen.cc
@@ -111,6 +111,8 @@
   return ::grpc_raw_byte_buffer_create(slice, nslices);
 }
 
+grpc_slice CoreCodegen::grpc_empty_slice() { return ::grpc_empty_slice(); }
+
 grpc_slice CoreCodegen::grpc_slice_malloc(size_t length) {
   return ::grpc_slice_malloc(length);
 }
diff --git a/src/node/ext/byte_buffer.cc b/src/node/ext/byte_buffer.cc
index 7d6fb19..a99b96b 100644
--- a/src/node/ext/byte_buffer.cc
+++ b/src/node/ext/byte_buffer.cc
@@ -45,6 +45,7 @@
 namespace grpc {
 namespace node {
 
+using Nan::Callback;
 using Nan::MaybeLocal;
 
 using v8::Function;
@@ -62,7 +63,11 @@
 }
 
 namespace {
-void delete_buffer(char *data, void *hint) { delete[] data; }
+void delete_buffer(char *data, void *hint) {
+  grpc_slice *slice = static_cast<grpc_slice *>(hint);
+  grpc_slice_unref(*slice);
+  delete slice;
+}
 }
 
 Local<Value> ByteBufferToBuffer(grpc_byte_buffer *buffer) {
@@ -75,31 +80,15 @@
     Nan::ThrowError("Error initializing byte buffer reader.");
     return scope.Escape(Nan::Undefined());
   }
-  grpc_slice slice = grpc_byte_buffer_reader_readall(&reader);
-  size_t length = GRPC_SLICE_LENGTH(slice);
-  char *result = new char[length];
-  memcpy(result, GRPC_SLICE_START_PTR(slice), length);
-  grpc_slice_unref(slice);
-  return scope.Escape(MakeFastBuffer(
-      Nan::NewBuffer(result, length, delete_buffer, NULL).ToLocalChecked()));
+  grpc_slice *slice = new grpc_slice;
+  *slice = grpc_byte_buffer_reader_readall(&reader);
+  grpc_byte_buffer_reader_destroy(&reader);
+  char *result = reinterpret_cast<char *>(GRPC_SLICE_START_PTR(*slice));
+  size_t length = GRPC_SLICE_LENGTH(*slice);
+  Local<Value> buf =
+      Nan::NewBuffer(result, length, delete_buffer, slice).ToLocalChecked();
+  return scope.Escape(buf);
 }
 
-Local<Value> MakeFastBuffer(Local<Value> slowBuffer) {
-  Nan::EscapableHandleScope scope;
-  Local<Object> globalObj = Nan::GetCurrentContext()->Global();
-  MaybeLocal<Value> constructorValue = Nan::Get(
-      globalObj, Nan::New("Buffer").ToLocalChecked());
-  Local<Function> bufferConstructor = Local<Function>::Cast(
-      constructorValue.ToLocalChecked());
-  const int argc = 3;
-  Local<Value> consArgs[argc] = {
-    slowBuffer,
-    Nan::New<Number>(::node::Buffer::Length(slowBuffer)),
-    Nan::New<Number>(0)
-  };
-  MaybeLocal<Object> fastBuffer = Nan::NewInstance(bufferConstructor,
-                                                   argc, consArgs);
-  return scope.Escape(fastBuffer.ToLocalChecked());
-}
 }  // namespace node
 }  // namespace grpc
diff --git a/src/node/ext/byte_buffer.h b/src/node/ext/byte_buffer.h
index 55bc0ab..e8c4ac9 100644
--- a/src/node/ext/byte_buffer.h
+++ b/src/node/ext/byte_buffer.h
@@ -50,10 +50,6 @@
 /* Convert a grpc_byte_buffer to a Node.js Buffer */
 v8::Local<v8::Value> ByteBufferToBuffer(grpc_byte_buffer *buffer);
 
-/* Convert a ::node::Buffer to a fast Buffer, as defined in the Node
-   Buffer documentation */
-v8::Local<v8::Value> MakeFastBuffer(v8::Local<v8::Value> slowBuffer);
-
 }  // namespace node
 }  // namespace grpc
 
diff --git a/src/node/ext/slice.cc b/src/node/ext/slice.cc
index 98a80b3..104dd9e 100644
--- a/src/node/ext/slice.cc
+++ b/src/node/ext/slice.cc
@@ -37,7 +37,6 @@
 #include <grpc/support/alloc.h>
 
 #include "slice.h"
-#include "byte_buffer.h"
 
 namespace grpc {
 namespace node {
@@ -93,9 +92,9 @@
   Nan::EscapableHandleScope scope;
   grpc_slice *slice_ptr = new grpc_slice;
   *slice_ptr = grpc_slice_ref(slice);
-  return scope.Escape(MakeFastBuffer(Nan::NewBuffer(
+  return scope.Escape(Nan::NewBuffer(
       const_cast<char *>(reinterpret_cast<const char *>(GRPC_SLICE_START_PTR(*slice_ptr))),
-      GRPC_SLICE_LENGTH(*slice_ptr), SliceFreeCallback, slice_ptr).ToLocalChecked()));
+      GRPC_SLICE_LENGTH(*slice_ptr), SliceFreeCallback, slice_ptr).ToLocalChecked());
 }
 
 }  // namespace node
diff --git a/src/node/performance/benchmark_server.js b/src/node/performance/benchmark_server.js
index 6abde2e..7158af7 100644
--- a/src/node/performance/benchmark_server.js
+++ b/src/node/performance/benchmark_server.js
@@ -88,6 +88,13 @@
   });
 }
 
+function makeUnaryGenericCall(response_size) {
+  var response = zeroBuffer(response_size);
+  return function unaryGenericCall(call, callback) {
+    callback(null, response);
+  };
+}
+
 function makeStreamingGenericCall(response_size) {
   var response = zeroBuffer(response_size);
   return function streamingGenericCall(call) {
@@ -129,6 +136,7 @@
   this.port = server.bind(host + ':' + port, server_creds);
   if (generic) {
     server.addService(genericService, {
+      unaryCall: makeUnaryGenericCall(response_size),
       streamingCall: makeStreamingGenericCall(response_size)
     });
   } else {
diff --git a/src/node/performance/generic_service.js b/src/node/performance/generic_service.js
index ce09cc4..c936ac3 100644
--- a/src/node/performance/generic_service.js
+++ b/src/node/performance/generic_service.js
@@ -34,8 +34,17 @@
 var _ = require('lodash');
 
 module.exports = {
+  'unaryCall' : {
+    path: '/grpc.testing.BenchmarkService/UnaryCall',
+    requestStream: false,
+    responseStream: false,
+    requestSerialize: _.identity,
+    requestDeserialize: _.identity,
+    responseSerialize: _.identity,
+    responseDeserialize: _.identity
+  },
   'streamingCall' : {
-    path: '/grpc.testing/BenchmarkService',
+    path: '/grpc.testing.BenchmarkService/StreamingCall',
     requestStream: true,
     responseStream: true,
     requestSerialize: _.identity,
diff --git a/src/node/performance/worker_service_impl.js b/src/node/performance/worker_service_impl.js
index 38888a7..fa864f9 100644
--- a/src/node/performance/worker_service_impl.js
+++ b/src/node/performance/worker_service_impl.js
@@ -89,6 +89,7 @@
           default:
           call.emit('error', new Error('Unsupported PayloadConfig type' +
               setup.payload_config.payload));
+          return;
         }
         switch (setup.load_params.load) {
           case 'closed_loop':
@@ -103,6 +104,7 @@
           default:
           call.emit('error', new Error('Unsupported LoadParams type' +
               setup.load_params.load));
+          return;
         }
         stats = client.mark();
         call.write({
@@ -137,8 +139,27 @@
       switch (request.argtype) {
         case 'setup':
         console.log('ServerConfig %j', request.setup);
+        var setup = request.setup;
+        var resp_size, generic;
+        if (setup.payload_config) {
+          switch (setup.payload_config.payload) {
+            case 'bytebuf_params':
+            resp_size = setup.payload_config.bytebuf_params.resp_size;
+            generic = true;
+            break;
+            case 'simple_params':
+            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));
+            return;
+          }
+        }
         server = new BenchmarkServer('[::]', request.setup.port,
-                                     request.setup.security_params);
+                                     request.setup.security_params,
+                                     generic, resp_size);
         server.on('started', function() {
           stats = server.mark();
           call.write({
diff --git a/src/objective-c/tests/run_tests.sh b/src/objective-c/tests/run_tests.sh
index bd7c294..0e82bca 100755
--- a/src/objective-c/tests/run_tests.sh
+++ b/src/objective-c/tests/run_tests.sh
@@ -68,12 +68,16 @@
     -destination name="iPhone 6" \
     test | xcpretty
 
-echo "TIME:  $(date)"
-xcodebuild \
-    -workspace Tests.xcworkspace \
-    -scheme CronetUnitTests \
-    -destination name="iPhone 6" \
-    test | xcpretty
+# Temporarily disabled for (possible) flakiness on Jenkins.
+# Fix or reenable after confirmation/disconfirmation that it is the source of
+# Jenkins problem.
+
+# echo "TIME:  $(date)"
+# xcodebuild \
+#     -workspace Tests.xcworkspace \
+#     -scheme CronetUnitTests \
+#     -destination name="iPhone 6" \
+#     test | xcpretty
 
 echo "TIME:  $(date)"
 xcodebuild \
diff --git a/src/python/grpcio/grpc_core_dependencies.py b/src/python/grpcio/grpc_core_dependencies.py
index ed8793b..3bcbe66 100644
--- a/src/python/grpcio/grpc_core_dependencies.py
+++ b/src/python/grpcio/grpc_core_dependencies.py
@@ -88,7 +88,6 @@
   'src/core/lib/channel/handshaker_registry.c',
   'src/core/lib/channel/http_client_filter.c',
   'src/core/lib/channel/http_server_filter.c',
-  'src/core/lib/channel/max_age_filter.c',
   'src/core/lib/channel/message_size_filter.c',
   'src/core/lib/compression/compression.c',
   'src/core/lib/compression/message_compress.c',
@@ -253,47 +252,47 @@
   'src/core/tsi/transport_security.c',
   'src/core/ext/transport/chttp2/server/chttp2_server.c',
   'src/core/ext/transport/chttp2/client/secure/secure_channel_create.c',
-  'src/core/ext/client_channel/channel_connectivity.c',
-  'src/core/ext/client_channel/client_channel.c',
-  'src/core/ext/client_channel/client_channel_factory.c',
-  'src/core/ext/client_channel/client_channel_plugin.c',
-  'src/core/ext/client_channel/connector.c',
-  'src/core/ext/client_channel/http_connect_handshaker.c',
-  'src/core/ext/client_channel/http_proxy.c',
-  'src/core/ext/client_channel/lb_policy.c',
-  'src/core/ext/client_channel/lb_policy_factory.c',
-  'src/core/ext/client_channel/lb_policy_registry.c',
-  'src/core/ext/client_channel/parse_address.c',
-  'src/core/ext/client_channel/proxy_mapper.c',
-  'src/core/ext/client_channel/proxy_mapper_registry.c',
-  'src/core/ext/client_channel/resolver.c',
-  'src/core/ext/client_channel/resolver_factory.c',
-  'src/core/ext/client_channel/resolver_registry.c',
-  'src/core/ext/client_channel/retry_throttle.c',
-  'src/core/ext/client_channel/subchannel.c',
-  'src/core/ext/client_channel/subchannel_index.c',
-  'src/core/ext/client_channel/uri_parser.c',
+  'src/core/ext/filters/client_channel/channel_connectivity.c',
+  'src/core/ext/filters/client_channel/client_channel.c',
+  'src/core/ext/filters/client_channel/client_channel_factory.c',
+  'src/core/ext/filters/client_channel/client_channel_plugin.c',
+  'src/core/ext/filters/client_channel/connector.c',
+  'src/core/ext/filters/client_channel/http_connect_handshaker.c',
+  'src/core/ext/filters/client_channel/http_proxy.c',
+  'src/core/ext/filters/client_channel/lb_policy.c',
+  'src/core/ext/filters/client_channel/lb_policy_factory.c',
+  'src/core/ext/filters/client_channel/lb_policy_registry.c',
+  'src/core/ext/filters/client_channel/parse_address.c',
+  'src/core/ext/filters/client_channel/proxy_mapper.c',
+  'src/core/ext/filters/client_channel/proxy_mapper_registry.c',
+  'src/core/ext/filters/client_channel/resolver.c',
+  'src/core/ext/filters/client_channel/resolver_factory.c',
+  'src/core/ext/filters/client_channel/resolver_registry.c',
+  'src/core/ext/filters/client_channel/retry_throttle.c',
+  'src/core/ext/filters/client_channel/subchannel.c',
+  'src/core/ext/filters/client_channel/subchannel_index.c',
+  'src/core/ext/filters/client_channel/uri_parser.c',
   'src/core/ext/transport/chttp2/client/chttp2_connector.c',
   'src/core/ext/transport/chttp2/server/insecure/server_chttp2.c',
   'src/core/ext/transport/chttp2/server/insecure/server_chttp2_posix.c',
   'src/core/ext/transport/chttp2/client/insecure/channel_create.c',
   'src/core/ext/transport/chttp2/client/insecure/channel_create_posix.c',
-  'src/core/ext/lb_policy/grpclb/grpclb.c',
-  'src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c',
-  'src/core/ext/lb_policy/grpclb/load_balancer_api.c',
-  'src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c',
+  'src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c',
+  'src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c',
+  'src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c',
+  'src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c',
   'third_party/nanopb/pb_common.c',
   'third_party/nanopb/pb_decode.c',
   'third_party/nanopb/pb_encode.c',
-  'src/core/ext/lb_policy/pick_first/pick_first.c',
-  'src/core/ext/lb_policy/round_robin/round_robin.c',
-  'src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c',
-  'src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c',
-  'src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c',
-  'src/core/ext/resolver/dns/native/dns_resolver.c',
-  'src/core/ext/resolver/sockaddr/sockaddr_resolver.c',
-  'src/core/ext/load_reporting/load_reporting.c',
-  'src/core/ext/load_reporting/load_reporting_filter.c',
+  'src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c',
+  'src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c',
+  'src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c',
+  'src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c',
+  'src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c',
+  'src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c',
+  'src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c',
+  'src/core/ext/filters/load_reporting/load_reporting.c',
+  'src/core/ext/filters/load_reporting/load_reporting_filter.c',
   'src/core/ext/census/base_resources.c',
   'src/core/ext/census/context.c',
   'src/core/ext/census/gen/census.pb.c',
@@ -308,6 +307,7 @@
   'src/core/ext/census/resource.c',
   'src/core/ext/census/trace_context.c',
   'src/core/ext/census/tracing.c',
+  'src/core/ext/filters/max_age/max_age_filter.c',
   'src/core/plugin_registry/grpc_plugin_registry.c',
   'src/boringssl/err_data.c',
   'third_party/boringssl/crypto/aes/aes.c',
diff --git a/src/python/grpcio_reflection/grpc_reflection/v1alpha/reflection.py b/src/python/grpcio_reflection/grpc_reflection/v1alpha/reflection.py
index c8ad966..c58cb3e 100644
--- a/src/python/grpcio_reflection/grpc_reflection/v1alpha/reflection.py
+++ b/src/python/grpcio_reflection/grpc_reflection/v1alpha/reflection.py
@@ -143,12 +143,13 @@
                         .encode(),))
 
 
-def enable_server_reflection(service_names, server):
+def enable_server_reflection(service_names, server, pool=None):
     """Enables server reflection on a server.
 
     Args:
       service_names: Iterable of fully-qualified service names available.
       server: grpc.Server to which reflection service will be added.
+      pool: DescriptorPool object to use (descriptor_pool.Default() if None).
     """
     reflection_pb2_grpc.add_ServerReflectionServicer_to_server(
-        ReflectionServicer(service_names), server)
+        ReflectionServicer(service_names), server, pool)
diff --git a/templates/binding.gyp.template b/templates/binding.gyp.template
index 5ac97d2..aeeb56b 100644
--- a/templates/binding.gyp.template
+++ b/templates/binding.gyp.template
@@ -47,9 +47,37 @@
       # Some Node installations use the system installation of OpenSSL, and on
       # some systems, the system OpenSSL still does not have ALPN support. This
       # will let users recompile gRPC to work without ALPN.
-      'grpc_alpn%': 'true'
+      'grpc_alpn%': 'true',
+      # Indicates that the library should be built with gcov.
+      'grpc_gcov%': 'false'
     },
     'target_defaults': {
+      'configurations': {
+        % for name, args in configs.iteritems():
+        %  if name in ['dbg', 'opt']:
+        '${{'dbg':'Debug', 'opt': 'Release'}[name]}': {
+          % for arg, prop in [('CPPFLAGS', 'cflags'), ('DEFINES', 'defines')]:
+          %  if args.get(arg, None) is not None:
+          '${prop}': [
+            % for item in args.get(arg).split():
+              '${item}',
+            % endfor
+          ],
+          %  endif
+          % endfor
+        },
+        %  endif
+        % endfor
+      },
+      % for arg, prop in [('CPPFLAGS', 'cflags'), ('LDFLAGS', 'ldflags')]:
+      %  if defaults['global'].get(arg, None) is not None:
+      '${prop}': [
+        % for item in defaults['global'].get(arg).split():
+          '${item}',
+        % endfor
+      ],
+      %  endif
+      % endfor
       'include_dirs': [
         '.',
         'include'
@@ -66,6 +94,17 @@
             'GRPC_UV'
           ]
         }],
+        ['grpc_gcov=="true"', {
+          % for arg, prop in [('CPPFLAGS', 'cflags'), ('DEFINES', 'defines'), ('LDFLAGS', 'ldflags')]:
+          %  if configs['gcov'].get(arg, None) is not None:
+          '${prop}': [
+            % for item in configs['gcov'].get(arg).split():
+              '${item}',
+            % endfor
+          ],
+          %  endif
+          % endfor
+        }],
         ['OS!="win" and runtime=="electron"', {
           "defines": [
             'OPENSSL_NO_THREADS'
@@ -128,26 +167,9 @@
             "ws2_32"
           ]
         }, { # OS != "win"
-          'variables': {
-            'config': '<!(echo $CONFIG)',
-          },
           'include_dirs': [
             '<(node_root_dir)/deps/zlib',
-            '<(node_root_dir)/deps/cares/include',
-          ],
-          'conditions': [
-            ['config=="gcov"', {
-              'cflags': [
-                '-ftest-coverage',
-                '-fprofile-arcs',
-                '-O0'
-              ],
-              'ldflags': [
-                '-ftest-coverage',
-                '-fprofile-arcs'
-              ]
-            }
-           ]
+            '<(node_root_dir)/deps/cares/include'
           ]
         }]
       ]
@@ -284,16 +306,10 @@
         ],
         'cflags': [
           '-std=c++11',
-          '-Wall',
           '-pthread',
-          '-g',
           '-zdefs',
-          '-Werror',
           '-Wno-error=deprecated-declarations'
         ],
-        'ldflags': [
-          '-g'
-        ],
         "conditions": [
           ['OS=="win" or runtime=="electron"', {
             'dependencies': [
diff --git a/test/core/client_channel/lb_policies_test.c b/test/core/client_channel/lb_policies_test.c
index 057b90e..e03492f 100644
--- a/test/core/client_channel/lb_policies_test.c
+++ b/test/core/client_channel/lb_policies_test.c
@@ -41,8 +41,8 @@
 #include <grpc/support/string_util.h>
 #include <grpc/support/time.h>
 
-#include "src/core/ext/client_channel/client_channel.h"
-#include "src/core/ext/client_channel/lb_policy_registry.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/lb_policy_registry.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/channel/channel_stack.h"
 #include "src/core/lib/support/string.h"
diff --git a/test/core/client_channel/parse_address_test.c b/test/core/client_channel/parse_address_test.c
index 37dd0fb..629cdb0 100644
--- a/test/core/client_channel/parse_address_test.c
+++ b/test/core/client_channel/parse_address_test.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/parse_address.h"
+#include "src/core/ext/filters/client_channel/parse_address.h"
 #include "src/core/lib/iomgr/sockaddr.h"
 
 #include <string.h>
diff --git a/test/core/client_channel/resolvers/dns_resolver_connectivity_test.c b/test/core/client_channel/resolvers/dns_resolver_connectivity_test.c
index 8449afc..8e15faa 100644
--- a/test/core/client_channel/resolvers/dns_resolver_connectivity_test.c
+++ b/test/core/client_channel/resolvers/dns_resolver_connectivity_test.c
@@ -36,8 +36,8 @@
 #include <grpc/grpc.h>
 #include <grpc/support/alloc.h>
 
-#include "src/core/ext/client_channel/resolver.h"
-#include "src/core/ext/client_channel/resolver_registry.h"
+#include "src/core/ext/filters/client_channel/resolver.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/iomgr/combiner.h"
 #include "src/core/lib/iomgr/resolve_address.h"
diff --git a/test/core/client_channel/resolvers/dns_resolver_test.c b/test/core/client_channel/resolvers/dns_resolver_test.c
index 919a85d..fa7857d 100644
--- a/test/core/client_channel/resolvers/dns_resolver_test.c
+++ b/test/core/client_channel/resolvers/dns_resolver_test.c
@@ -35,7 +35,7 @@
 
 #include <grpc/support/log.h>
 
-#include "src/core/ext/client_channel/resolver_registry.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
 #include "src/core/lib/iomgr/combiner.h"
 #include "test/core/util/test_config.h"
 
diff --git a/test/core/client_channel/resolvers/sockaddr_resolver_test.c b/test/core/client_channel/resolvers/sockaddr_resolver_test.c
index bc4f02c..847eaba 100644
--- a/test/core/client_channel/resolvers/sockaddr_resolver_test.c
+++ b/test/core/client_channel/resolvers/sockaddr_resolver_test.c
@@ -37,7 +37,7 @@
 #include <grpc/support/log.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/ext/client_channel/resolver_registry.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/iomgr/combiner.h"
 
diff --git a/test/core/client_channel/uri_fuzzer_test.c b/test/core/client_channel/uri_fuzzer_test.c
index baadd4f..51da7f9 100644
--- a/test/core/client_channel/uri_fuzzer_test.c
+++ b/test/core/client_channel/uri_fuzzer_test.c
@@ -37,7 +37,7 @@
 
 #include <grpc/support/alloc.h>
 
-#include "src/core/ext/client_channel/uri_parser.h"
+#include "src/core/ext/filters/client_channel/uri_parser.h"
 #include "src/core/lib/iomgr/exec_ctx.h"
 
 bool squelch = true;
diff --git a/test/core/client_channel/uri_parser_test.c b/test/core/client_channel/uri_parser_test.c
index 8a127f7..9fd0dd0 100644
--- a/test/core/client_channel/uri_parser_test.c
+++ b/test/core/client_channel/uri_parser_test.c
@@ -31,7 +31,7 @@
  *
  */
 
-#include "src/core/ext/client_channel/uri_parser.h"
+#include "src/core/ext/filters/client_channel/uri_parser.h"
 
 #include <string.h>
 
diff --git a/test/core/end2end/end2end_nosec_tests.c b/test/core/end2end/end2end_nosec_tests.c
index 64bdceb..1187e59 100644
--- a/test/core/end2end/end2end_nosec_tests.c
+++ b/test/core/end2end/end2end_nosec_tests.c
@@ -49,6 +49,8 @@
 extern void authority_not_supported_pre_init(void);
 extern void bad_hostname(grpc_end2end_test_config config);
 extern void bad_hostname_pre_init(void);
+extern void bad_ping(grpc_end2end_test_config config);
+extern void bad_ping_pre_init(void);
 extern void binary_metadata(grpc_end2end_test_config config);
 extern void binary_metadata_pre_init(void);
 extern void cancel_after_accept(grpc_end2end_test_config config);
@@ -154,6 +156,7 @@
   grpc_summon_debugger_macros();
   authority_not_supported_pre_init();
   bad_hostname_pre_init();
+  bad_ping_pre_init();
   binary_metadata_pre_init();
   cancel_after_accept_pre_init();
   cancel_after_client_done_pre_init();
@@ -214,6 +217,7 @@
   if (argc <= 1) {
     authority_not_supported(config);
     bad_hostname(config);
+    bad_ping(config);
     binary_metadata(config);
     cancel_after_accept(config);
     cancel_after_client_done(config);
@@ -275,6 +279,10 @@
       bad_hostname(config);
       continue;
     }
+    if (0 == strcmp("bad_ping", argv[i])) {
+      bad_ping(config);
+      continue;
+    }
     if (0 == strcmp("binary_metadata", argv[i])) {
       binary_metadata(config);
       continue;
diff --git a/test/core/end2end/end2end_tests.c b/test/core/end2end/end2end_tests.c
index 37c1be4..966031a 100644
--- a/test/core/end2end/end2end_tests.c
+++ b/test/core/end2end/end2end_tests.c
@@ -49,6 +49,8 @@
 extern void authority_not_supported_pre_init(void);
 extern void bad_hostname(grpc_end2end_test_config config);
 extern void bad_hostname_pre_init(void);
+extern void bad_ping(grpc_end2end_test_config config);
+extern void bad_ping_pre_init(void);
 extern void binary_metadata(grpc_end2end_test_config config);
 extern void binary_metadata_pre_init(void);
 extern void call_creds(grpc_end2end_test_config config);
@@ -156,6 +158,7 @@
   grpc_summon_debugger_macros();
   authority_not_supported_pre_init();
   bad_hostname_pre_init();
+  bad_ping_pre_init();
   binary_metadata_pre_init();
   call_creds_pre_init();
   cancel_after_accept_pre_init();
@@ -217,6 +220,7 @@
   if (argc <= 1) {
     authority_not_supported(config);
     bad_hostname(config);
+    bad_ping(config);
     binary_metadata(config);
     call_creds(config);
     cancel_after_accept(config);
@@ -279,6 +283,10 @@
       bad_hostname(config);
       continue;
     }
+    if (0 == strcmp("bad_ping", argv[i])) {
+      bad_ping(config);
+      continue;
+    }
     if (0 == strcmp("binary_metadata", argv[i])) {
       binary_metadata(config);
       continue;
diff --git a/test/core/end2end/fake_resolver.c b/test/core/end2end/fake_resolver.c
index 8a37531..1c7dd13 100644
--- a/test/core/end2end/fake_resolver.c
+++ b/test/core/end2end/fake_resolver.c
@@ -42,9 +42,9 @@
 #include <grpc/support/port_platform.h>
 #include <grpc/support/string_util.h>
 
-#include "src/core/ext/client_channel/lb_policy_factory.h"
-#include "src/core/ext/client_channel/parse_address.h"
-#include "src/core/ext/client_channel/resolver_registry.h"
+#include "src/core/ext/filters/client_channel/lb_policy_factory.h"
+#include "src/core/ext/filters/client_channel/parse_address.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/iomgr/resolve_address.h"
 #include "src/core/lib/iomgr/unix_sockets_posix.h"
diff --git a/test/core/end2end/fixtures/h2_census.c b/test/core/end2end/fixtures/h2_census.c
index 8e60123..97b27b2 100644
--- a/test/core/end2end/fixtures/h2_census.c
+++ b/test/core/end2end/fixtures/h2_census.c
@@ -41,7 +41,7 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
-#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/channel/connected_channel.h"
diff --git a/test/core/end2end/fixtures/h2_compress.c b/test/core/end2end/fixtures/h2_compress.c
index c01e456..8aec94d 100644
--- a/test/core/end2end/fixtures/h2_compress.c
+++ b/test/core/end2end/fixtures/h2_compress.c
@@ -41,7 +41,7 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
-#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/channel/connected_channel.h"
diff --git a/test/core/end2end/fixtures/h2_full+pipe.c b/test/core/end2end/fixtures/h2_full+pipe.c
index c6013f3..0191e59 100644
--- a/test/core/end2end/fixtures/h2_full+pipe.c
+++ b/test/core/end2end/fixtures/h2_full+pipe.c
@@ -46,7 +46,7 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
-#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
 #include "src/core/lib/channel/connected_channel.h"
 #include "src/core/lib/channel/http_server_filter.h"
diff --git a/test/core/end2end/fixtures/h2_full+trace.c b/test/core/end2end/fixtures/h2_full+trace.c
index 0131637..9dbb27f 100644
--- a/test/core/end2end/fixtures/h2_full+trace.c
+++ b/test/core/end2end/fixtures/h2_full+trace.c
@@ -46,7 +46,7 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
-#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
 #include "src/core/lib/channel/connected_channel.h"
 #include "src/core/lib/channel/http_server_filter.h"
diff --git a/test/core/end2end/fixtures/h2_full.c b/test/core/end2end/fixtures/h2_full.c
index 3399f19..49c62b3 100644
--- a/test/core/end2end/fixtures/h2_full.c
+++ b/test/core/end2end/fixtures/h2_full.c
@@ -41,7 +41,7 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
-#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
 #include "src/core/lib/channel/connected_channel.h"
 #include "src/core/lib/channel/http_server_filter.h"
diff --git a/test/core/end2end/fixtures/h2_http_proxy.c b/test/core/end2end/fixtures/h2_http_proxy.c
index 55c65fa..62c4355 100644
--- a/test/core/end2end/fixtures/h2_http_proxy.c
+++ b/test/core/end2end/fixtures/h2_http_proxy.c
@@ -42,7 +42,7 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
-#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
 #include "src/core/lib/channel/connected_channel.h"
 #include "src/core/lib/channel/http_server_filter.h"
diff --git a/test/core/end2end/fixtures/h2_load_reporting.c b/test/core/end2end/fixtures/h2_load_reporting.c
index 38321f3..79f26ed 100644
--- a/test/core/end2end/fixtures/h2_load_reporting.c
+++ b/test/core/end2end/fixtures/h2_load_reporting.c
@@ -41,8 +41,8 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
-#include "src/core/ext/client_channel/client_channel.h"
-#include "src/core/ext/load_reporting/load_reporting.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
+#include "src/core/ext/filters/load_reporting/load_reporting.h"
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/channel/connected_channel.h"
diff --git a/test/core/end2end/fixtures/h2_proxy.c b/test/core/end2end/fixtures/h2_proxy.c
index 9e37ed4..a10738f 100644
--- a/test/core/end2end/fixtures/h2_proxy.c
+++ b/test/core/end2end/fixtures/h2_proxy.c
@@ -41,7 +41,7 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
-#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
 #include "src/core/lib/channel/connected_channel.h"
 #include "src/core/lib/channel/http_server_filter.h"
diff --git a/test/core/end2end/fixtures/h2_sockpair+trace.c b/test/core/end2end/fixtures/h2_sockpair+trace.c
index edf42a4..5ace922 100644
--- a/test/core/end2end/fixtures/h2_sockpair+trace.c
+++ b/test/core/end2end/fixtures/h2_sockpair+trace.c
@@ -45,7 +45,7 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
-#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
 #include "src/core/lib/channel/compress_filter.h"
 #include "src/core/lib/channel/connected_channel.h"
diff --git a/test/core/end2end/fixtures/h2_sockpair.c b/test/core/end2end/fixtures/h2_sockpair.c
index 94b2623..3079a42 100644
--- a/test/core/end2end/fixtures/h2_sockpair.c
+++ b/test/core/end2end/fixtures/h2_sockpair.c
@@ -40,7 +40,7 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
-#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
 #include "src/core/lib/channel/compress_filter.h"
 #include "src/core/lib/channel/connected_channel.h"
diff --git a/test/core/end2end/fixtures/h2_sockpair_1byte.c b/test/core/end2end/fixtures/h2_sockpair_1byte.c
index 6f9cf8f..70410d7 100644
--- a/test/core/end2end/fixtures/h2_sockpair_1byte.c
+++ b/test/core/end2end/fixtures/h2_sockpair_1byte.c
@@ -40,7 +40,7 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
-#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
 #include "src/core/lib/channel/compress_filter.h"
 #include "src/core/lib/channel/connected_channel.h"
diff --git a/test/core/end2end/fixtures/h2_uds.c b/test/core/end2end/fixtures/h2_uds.c
index bc973ea..7bde69d 100644
--- a/test/core/end2end/fixtures/h2_uds.c
+++ b/test/core/end2end/fixtures/h2_uds.c
@@ -44,7 +44,7 @@
 #include <grpc/support/sync.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/useful.h>
-#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
 #include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
 #include "src/core/lib/channel/connected_channel.h"
 #include "src/core/lib/channel/http_server_filter.h"
diff --git a/test/core/end2end/gen_build_yaml.py b/test/core/end2end/gen_build_yaml.py
index 3c5068f..d1e510d 100755
--- a/test/core/end2end/gen_build_yaml.py
+++ b/test/core/end2end/gen_build_yaml.py
@@ -93,6 +93,7 @@
 END2END_TESTS = {
     'authority_not_supported': default_test_options,
     'bad_hostname': default_test_options,
+    'bad_ping': connectivity_test_options._replace(proxyable=False),
     'binary_metadata': default_test_options,
     'resource_quota_server': default_test_options._replace(large_writes=True,
                                                            proxyable=False),
diff --git a/test/core/end2end/generate_tests.bzl b/test/core/end2end/generate_tests.bzl
index 1041219..dc0925d 100755
--- a/test/core/end2end/generate_tests.bzl
+++ b/test/core/end2end/generate_tests.bzl
@@ -85,6 +85,7 @@
 # maps test names to options
 END2END_TESTS = {
     'bad_hostname': test_options(),
+    'bad_ping': test_options(),
     'binary_metadata': test_options(),
     'resource_quota_server': test_options(proxyable=False),
     'call_creds': test_options(secure=True),
diff --git a/test/core/end2end/tests/authority_not_supported.c b/test/core/end2end/tests/authority_not_supported.c
index 7db2fd6..192a20d 100644
--- a/test/core/end2end/tests/authority_not_supported.c
+++ b/test/core/end2end/tests/authority_not_supported.c
@@ -57,16 +57,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -102,7 +104,6 @@
       grpc_slice_from_copied_string("hello world");
   grpc_byte_buffer *request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
-  gpr_timespec deadline = five_seconds_time();
   grpc_metadata meta_c[2] = {{grpc_slice_from_static_string("key1"),
                               grpc_slice_from_static_string("val1"),
                               0,
@@ -124,6 +125,7 @@
   grpc_slice details;
 
   grpc_slice host = grpc_slice_from_static_string("foo.test.google.fr");
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
                                grpc_slice_from_static_string("/foo"), &host,
                                deadline, NULL);
diff --git a/test/core/end2end/tests/bad_hostname.c b/test/core/end2end/tests/bad_hostname.c
index f50a580..c63c9c7 100644
--- a/test/core/end2end/tests/bad_hostname.c
+++ b/test/core/end2end/tests/bad_hostname.c
@@ -59,16 +59,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -99,7 +101,6 @@
 
 static void simple_request_body(grpc_end2end_test_fixture f) {
   grpc_call *c;
-  gpr_timespec deadline = five_seconds_time();
   cq_verifier *cqv = cq_verifier_create(f.cq);
   grpc_op ops[6];
   grpc_op *op;
@@ -112,6 +113,7 @@
   grpc_slice details;
 
   grpc_slice host = grpc_slice_from_static_string("slartibartfast.local");
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
                                grpc_slice_from_static_string("/foo"), &host,
                                deadline, NULL);
diff --git a/test/core/end2end/tests/bad_ping.c b/test/core/end2end/tests/bad_ping.c
new file mode 100644
index 0000000..01a6aea
--- /dev/null
+++ b/test/core/end2end/tests/bad_ping.c
@@ -0,0 +1,237 @@
+/*
+ *
+ * Copyright 2017, 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/log.h>
+#include <grpc/support/sync.h>
+#include <grpc/support/thd.h>
+#include <grpc/support/time.h>
+#include <grpc/support/useful.h>
+
+#include "test/core/end2end/cq_verifier.h"
+
+#define MAX_PING_STRIKES 1
+
+static void *tag(intptr_t t) { return (void *)t; }
+
+static void drain_cq(grpc_completion_queue *cq) {
+  grpc_event ev;
+  do {
+    ev = grpc_completion_queue_next(cq, grpc_timeout_seconds_to_deadline(5),
+                                    NULL);
+  } while (ev.type != GRPC_QUEUE_SHUTDOWN);
+}
+
+static void shutdown_server(grpc_end2end_test_fixture *f) {
+  if (!f->server) return;
+  grpc_server_destroy(f->server);
+  f->server = NULL;
+}
+
+static void shutdown_client(grpc_end2end_test_fixture *f) {
+  if (!f->client) return;
+  grpc_channel_destroy(f->client);
+  f->client = NULL;
+}
+
+static void end_test(grpc_end2end_test_fixture *f) {
+  shutdown_server(f);
+  shutdown_client(f);
+
+  grpc_completion_queue_shutdown(f->cq);
+  drain_cq(f->cq);
+  grpc_completion_queue_destroy(f->cq);
+}
+
+static void test_bad_ping(grpc_end2end_test_config config) {
+  grpc_end2end_test_fixture f = config.create_fixture(NULL, NULL);
+  cq_verifier *cqv = cq_verifier_create(f.cq);
+  grpc_arg client_a[] = {{.type = GRPC_ARG_INTEGER,
+                          .key = GRPC_ARG_HTTP2_MIN_TIME_BETWEEN_PINGS_MS,
+                          .value.integer = 0},
+                         {.type = GRPC_ARG_INTEGER,
+                          .key = GRPC_ARG_HTTP2_MAX_PINGS_WITHOUT_DATA,
+                          .value.integer = 20},
+                         {.type = GRPC_ARG_INTEGER,
+                          .key = GRPC_ARG_HTTP2_BDP_PROBE,
+                          .value.integer = 0}};
+  grpc_arg server_a[] = {
+      {.type = GRPC_ARG_INTEGER,
+       .key = GRPC_ARG_HTTP2_MIN_PING_INTERVAL_WITHOUT_DATA_MS,
+       .value.integer = 300000 /* 5 minutes */},
+      {.type = GRPC_ARG_INTEGER,
+       .key = GRPC_ARG_HTTP2_MAX_PING_STRIKES,
+       .value.integer = MAX_PING_STRIKES}};
+  grpc_channel_args client_args = {.num_args = GPR_ARRAY_SIZE(client_a),
+                                   .args = client_a};
+  grpc_channel_args server_args = {.num_args = GPR_ARRAY_SIZE(server_a),
+                                   .args = server_a};
+
+  config.init_client(&f, &client_args);
+  config.init_server(&f, &server_args);
+
+  grpc_call *c;
+  grpc_call *s;
+  gpr_timespec deadline = grpc_timeout_seconds_to_deadline(10);
+  grpc_op ops[6];
+  grpc_op *op;
+  grpc_metadata_array initial_metadata_recv;
+  grpc_metadata_array trailing_metadata_recv;
+  grpc_metadata_array request_metadata_recv;
+  grpc_call_details call_details;
+  grpc_status_code status;
+  grpc_call_error error;
+  grpc_slice details;
+  int was_cancelled = 2;
+
+  c = grpc_channel_create_call(
+      f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
+      grpc_slice_from_static_string("/foo"),
+      get_host_override_slice("foo.test.google.fr:1234", config), deadline,
+      NULL);
+  GPR_ASSERT(c);
+
+  grpc_metadata_array_init(&initial_metadata_recv);
+  grpc_metadata_array_init(&trailing_metadata_recv);
+  grpc_metadata_array_init(&request_metadata_recv);
+  grpc_call_details_init(&call_details);
+
+  memset(ops, 0, sizeof(ops));
+  op = ops;
+  op->op = GRPC_OP_SEND_INITIAL_METADATA;
+  op->data.send_initial_metadata.count = 0;
+  op->data.send_initial_metadata.metadata = NULL;
+  op->flags = 0;
+  op->reserved = NULL;
+  op++;
+  op->op = GRPC_OP_SEND_CLOSE_FROM_CLIENT;
+  op->flags = 0;
+  op->reserved = NULL;
+  op++;
+  op->op = GRPC_OP_RECV_INITIAL_METADATA;
+  op->data.recv_initial_metadata.recv_initial_metadata = &initial_metadata_recv;
+  op->flags = 0;
+  op->reserved = NULL;
+  op++;
+  op->op = GRPC_OP_RECV_STATUS_ON_CLIENT;
+  op->data.recv_status_on_client.trailing_metadata = &trailing_metadata_recv;
+  op->data.recv_status_on_client.status = &status;
+  op->data.recv_status_on_client.status_details = &details;
+  op->flags = 0;
+  op->reserved = NULL;
+  op++;
+  error = grpc_call_start_batch(c, ops, (size_t)(op - ops), tag(1), NULL);
+  GPR_ASSERT(GRPC_CALL_OK == error);
+
+  error =
+      grpc_server_request_call(f.server, &s, &call_details,
+                               &request_metadata_recv, f.cq, f.cq, tag(101));
+  GPR_ASSERT(GRPC_CALL_OK == error);
+  CQ_EXPECT_COMPLETION(cqv, tag(101), 1);
+  cq_verify(cqv);
+
+  // Send too many pings to the server to trigger the punishment:
+  // The first ping is sent after data frames, it won't trigger a ping strike.
+  // Each of the following pings will trigger a ping strike, and we need at
+  // least (MAX_PING_STRIKES + 1) strikes to trigger the punishment. So
+  // (MAX_PING_STRIKES + 2) pings are needed here.
+  int i;
+  for (i = 200; i < 202 + MAX_PING_STRIKES; i++) {
+    grpc_channel_ping(f.client, f.cq, tag(i), NULL);
+    CQ_EXPECT_COMPLETION(cqv, tag(i), 1);
+    cq_verify(cqv);
+  }
+
+  memset(ops, 0, sizeof(ops));
+  op = ops;
+  op->op = GRPC_OP_SEND_INITIAL_METADATA;
+  op->data.send_initial_metadata.count = 0;
+  op->flags = 0;
+  op->reserved = NULL;
+  op++;
+  op->op = GRPC_OP_SEND_STATUS_FROM_SERVER;
+  op->data.send_status_from_server.trailing_metadata_count = 0;
+  op->data.send_status_from_server.status = GRPC_STATUS_UNIMPLEMENTED;
+  grpc_slice status_details = grpc_slice_from_static_string("xyz");
+  op->data.send_status_from_server.status_details = &status_details;
+  op->flags = 0;
+  op->reserved = NULL;
+  op++;
+  op->op = GRPC_OP_RECV_CLOSE_ON_SERVER;
+  op->data.recv_close_on_server.cancelled = &was_cancelled;
+  op->flags = 0;
+  op->reserved = NULL;
+  op++;
+  error = grpc_call_start_batch(s, ops, (size_t)(op - ops), tag(102), NULL);
+  GPR_ASSERT(GRPC_CALL_OK == error);
+
+  CQ_EXPECT_COMPLETION(cqv, tag(102), 1);
+  CQ_EXPECT_COMPLETION(cqv, tag(1), 1);
+  cq_verify(cqv);
+
+  grpc_server_shutdown_and_notify(f.server, f.cq, tag(0xdead));
+  CQ_EXPECT_COMPLETION(cqv, tag(0xdead), 1);
+  cq_verify(cqv);
+
+  grpc_call_destroy(s);
+
+  // The connection should be closed immediately after the misbehaved pings,
+  // the in-progress RPC should fail.
+  GPR_ASSERT(status == GRPC_STATUS_UNAVAILABLE);
+  GPR_ASSERT(0 == grpc_slice_str_cmp(details, "Endpoint read failed"));
+  GPR_ASSERT(0 == grpc_slice_str_cmp(call_details.method, "/foo"));
+  validate_host_override_string("foo.test.google.fr:1234", call_details.host,
+                                config);
+  GPR_ASSERT(was_cancelled == 1);
+
+  grpc_slice_unref(details);
+  grpc_metadata_array_destroy(&initial_metadata_recv);
+  grpc_metadata_array_destroy(&trailing_metadata_recv);
+  grpc_metadata_array_destroy(&request_metadata_recv);
+  grpc_call_details_destroy(&call_details);
+  grpc_call_destroy(c);
+  cq_verifier_destroy(cqv);
+  end_test(&f);
+  config.tear_down_data(&f);
+}
+
+void bad_ping(grpc_end2end_test_config config) {
+  GPR_ASSERT(config.feature_mask & FEATURE_MASK_SUPPORTS_DELAYED_CONNECTION);
+  test_bad_ping(config);
+}
+
+void bad_ping_pre_init(void) {}
diff --git a/test/core/end2end/tests/binary_metadata.c b/test/core/end2end/tests/binary_metadata.c
index 7fb60f4..9cb17c9 100644
--- a/test/core/end2end/tests/binary_metadata.c
+++ b/test/core/end2end/tests/binary_metadata.c
@@ -57,16 +57,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -108,7 +110,6 @@
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
   grpc_byte_buffer *response_payload =
       grpc_raw_byte_buffer_create(&response_payload_slice, 1);
-  gpr_timespec deadline = five_seconds_time();
   grpc_metadata meta_c[2] = {
       {grpc_slice_from_static_string("key1-bin"),
        grpc_slice_from_static_string(
@@ -147,6 +148,7 @@
   grpc_slice details;
   int was_cancelled = 2;
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/call_creds.c b/test/core/end2end/tests/call_creds.c
index 38cba50..d65073f 100644
--- a/test/core/end2end/tests/call_creds.c
+++ b/test/core/end2end/tests/call_creds.c
@@ -75,16 +75,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -143,7 +145,6 @@
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
   grpc_byte_buffer *response_payload =
       grpc_raw_byte_buffer_create(&response_payload_slice, 1);
-  gpr_timespec deadline = five_seconds_time();
   grpc_end2end_test_fixture f;
   cq_verifier *cqv;
   grpc_op ops[6];
@@ -165,6 +166,7 @@
   f = begin_test(config, test_name, 0);
   cqv = cq_verifier_create(f.cq);
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
@@ -383,7 +385,7 @@
   grpc_op *op;
   grpc_call *c;
   grpc_end2end_test_fixture f;
-  gpr_timespec deadline = five_seconds_time();
+  gpr_timespec deadline = five_seconds_from_now();
   cq_verifier *cqv;
   grpc_metadata_array initial_metadata_recv;
   grpc_metadata_array trailing_metadata_recv;
diff --git a/test/core/end2end/tests/cancel_after_accept.c b/test/core/end2end/tests/cancel_after_accept.c
index 1a92aa4..bda061c 100644
--- a/test/core/end2end/tests/cancel_after_accept.c
+++ b/test/core/end2end/tests/cancel_after_accept.c
@@ -64,16 +64,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -110,9 +112,6 @@
   grpc_op *op;
   grpc_call *c;
   grpc_call *s;
-  gpr_timespec deadline = use_service_config
-                              ? gpr_inf_future(GPR_CLOCK_MONOTONIC)
-                              : five_seconds_time();
   grpc_metadata_array initial_metadata_recv;
   grpc_metadata_array trailing_metadata_recv;
   grpc_metadata_array request_metadata_recv;
@@ -153,6 +152,9 @@
       begin_test(config, "cancel_after_accept", args, NULL);
   cq_verifier *cqv = cq_verifier_create(f.cq);
 
+  gpr_timespec deadline = use_service_config
+                              ? gpr_inf_future(GPR_CLOCK_MONOTONIC)
+                              : five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/service/method"),
diff --git a/test/core/end2end/tests/cancel_after_client_done.c b/test/core/end2end/tests/cancel_after_client_done.c
index 0afeecb..0e72911 100644
--- a/test/core/end2end/tests/cancel_after_client_done.c
+++ b/test/core/end2end/tests/cancel_after_client_done.c
@@ -58,16 +58,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -105,7 +107,6 @@
   grpc_call *s;
   grpc_end2end_test_fixture f = begin_test(
       config, "test_cancel_after_accept_and_writes_closed", NULL, NULL);
-  gpr_timespec deadline = five_seconds_time();
   cq_verifier *cqv = cq_verifier_create(f.cq);
   grpc_metadata_array initial_metadata_recv;
   grpc_metadata_array trailing_metadata_recv;
@@ -126,6 +127,7 @@
       grpc_raw_byte_buffer_create(&response_payload_slice, 1);
   int was_cancelled = 2;
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/cancel_after_invoke.c b/test/core/end2end/tests/cancel_after_invoke.c
index 8a96ef2..0ee5980 100644
--- a/test/core/end2end/tests/cancel_after_invoke.c
+++ b/test/core/end2end/tests/cancel_after_invoke.c
@@ -60,16 +60,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -106,7 +108,6 @@
   grpc_call *c;
   grpc_end2end_test_fixture f =
       begin_test(config, "test_cancel_after_invoke", mode, NULL, NULL);
-  gpr_timespec deadline = five_seconds_time();
   cq_verifier *cqv = cq_verifier_create(f.cq);
   grpc_metadata_array initial_metadata_recv;
   grpc_metadata_array trailing_metadata_recv;
@@ -121,6 +122,7 @@
   grpc_byte_buffer *request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/cancel_before_invoke.c b/test/core/end2end/tests/cancel_before_invoke.c
index 586aa7e..7d53091 100644
--- a/test/core/end2end/tests/cancel_before_invoke.c
+++ b/test/core/end2end/tests/cancel_before_invoke.c
@@ -57,16 +57,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -103,7 +105,6 @@
   grpc_call *c;
   grpc_end2end_test_fixture f =
       begin_test(config, "cancel_before_invoke", NULL, NULL);
-  gpr_timespec deadline = five_seconds_time();
   cq_verifier *cqv = cq_verifier_create(f.cq);
   grpc_metadata_array initial_metadata_recv;
   grpc_metadata_array trailing_metadata_recv;
@@ -118,6 +119,7 @@
   grpc_byte_buffer *request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/cancel_in_a_vacuum.c b/test/core/end2end/tests/cancel_in_a_vacuum.c
index bc462dd..c13fc88 100644
--- a/test/core/end2end/tests/cancel_in_a_vacuum.c
+++ b/test/core/end2end/tests/cancel_in_a_vacuum.c
@@ -58,16 +58,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -102,9 +104,9 @@
   grpc_call *c;
   grpc_end2end_test_fixture f =
       begin_test(config, "test_cancel_in_a_vacuum", NULL, NULL);
-  gpr_timespec deadline = five_seconds_time();
   cq_verifier *v_client = cq_verifier_create(f.cq);
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/cancel_with_status.c b/test/core/end2end/tests/cancel_with_status.c
index 7d03fe5..1e0e33b 100644
--- a/test/core/end2end/tests/cancel_with_status.c
+++ b/test/core/end2end/tests/cancel_with_status.c
@@ -59,16 +59,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -100,7 +102,6 @@
 static void simple_request_body(grpc_end2end_test_config config,
                                 grpc_end2end_test_fixture f, size_t num_ops) {
   grpc_call *c;
-  gpr_timespec deadline = five_seconds_time();
   cq_verifier *cqv = cq_verifier_create(f.cq);
   grpc_op ops[6];
   grpc_op *op;
@@ -112,6 +113,7 @@
 
   gpr_log(GPR_DEBUG, "test with %" PRIuPTR " ops", num_ops);
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/compressed_payload.c b/test/core/end2end/tests/compressed_payload.c
index 7dd8c11..c5b750a 100644
--- a/test/core/end2end/tests/compressed_payload.c
+++ b/test/core/end2end/tests/compressed_payload.c
@@ -65,16 +65,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -113,7 +115,6 @@
   grpc_call *s;
   grpc_slice request_payload_slice;
   grpc_byte_buffer *request_payload;
-  gpr_timespec deadline = five_seconds_time();
   grpc_channel_args *client_args;
   grpc_channel_args *server_args;
   grpc_end2end_test_fixture f;
@@ -150,6 +151,7 @@
   f = begin_test(config, test_name, client_args, server_args);
   cqv = cq_verifier_create(f.cq);
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
@@ -290,7 +292,6 @@
   grpc_call *s;
   grpc_slice request_payload_slice;
   grpc_byte_buffer *request_payload;
-  gpr_timespec deadline = five_seconds_time();
   grpc_channel_args *client_args;
   grpc_channel_args *server_args;
   grpc_end2end_test_fixture f;
@@ -329,6 +330,7 @@
   f = begin_test(config, test_name, client_args, server_args);
   cqv = cq_verifier_create(f.cq);
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/default_host.c b/test/core/end2end/tests/default_host.c
index bc1829b..8dccca2 100644
--- a/test/core/end2end/tests/default_host.c
+++ b/test/core/end2end/tests/default_host.c
@@ -59,16 +59,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -100,7 +102,6 @@
 static void simple_request_body(grpc_end2end_test_fixture f) {
   grpc_call *c;
   grpc_call *s;
-  gpr_timespec deadline = five_seconds_time();
   cq_verifier *cqv = cq_verifier_create(f.cq);
   grpc_op ops[6];
   grpc_op *op;
@@ -114,6 +115,7 @@
   int was_cancelled = 2;
   char *peer;
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
                                grpc_slice_from_static_string("/foo"), NULL,
                                deadline, NULL);
diff --git a/test/core/end2end/tests/disappearing_server.c b/test/core/end2end/tests/disappearing_server.c
index 05440a6..e2b888a 100644
--- a/test/core/end2end/tests/disappearing_server.c
+++ b/test/core/end2end/tests/disappearing_server.c
@@ -45,16 +45,18 @@
 
 static void *tag(intptr_t t) { return (void *)t; }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -84,7 +86,6 @@
                                            cq_verifier *cqv) {
   grpc_call *c;
   grpc_call *s;
-  gpr_timespec deadline = five_seconds_time();
   grpc_op ops[6];
   grpc_op *op;
   grpc_metadata_array initial_metadata_recv;
@@ -96,6 +97,7 @@
   grpc_slice details;
   int was_cancelled = 2;
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f->client, NULL, GRPC_PROPAGATE_DEFAULTS, f->cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/empty_batch.c b/test/core/end2end/tests/empty_batch.c
index 50bb6b8..37ca813 100644
--- a/test/core/end2end/tests/empty_batch.c
+++ b/test/core/end2end/tests/empty_batch.c
@@ -59,16 +59,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -100,11 +102,11 @@
 static void empty_batch_body(grpc_end2end_test_config config,
                              grpc_end2end_test_fixture f) {
   grpc_call *c;
-  gpr_timespec deadline = five_seconds_time();
   cq_verifier *cqv = cq_verifier_create(f.cq);
   grpc_call_error error;
   grpc_op *op = NULL;
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/filter_call_init_fails.c b/test/core/end2end/tests/filter_call_init_fails.c
index ebfe3b0..ffeb271 100644
--- a/test/core/end2end/tests/filter_call_init_fails.c
+++ b/test/core/end2end/tests/filter_call_init_fails.c
@@ -65,16 +65,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -112,7 +114,6 @@
       grpc_slice_from_copied_string("hello world");
   grpc_byte_buffer *request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
-  gpr_timespec deadline = five_seconds_time();
   grpc_end2end_test_fixture f =
       begin_test(config, "filter_call_init_fails", NULL, NULL);
   cq_verifier *cqv = cq_verifier_create(f.cq);
@@ -127,6 +128,7 @@
   grpc_call_error error;
   grpc_slice details;
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/filter_causes_close.c b/test/core/end2end/tests/filter_causes_close.c
index 62bf208..9115823 100644
--- a/test/core/end2end/tests/filter_causes_close.c
+++ b/test/core/end2end/tests/filter_causes_close.c
@@ -62,16 +62,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -108,7 +110,6 @@
       grpc_slice_from_copied_string("hello world");
   grpc_byte_buffer *request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
-  gpr_timespec deadline = five_seconds_time();
   grpc_end2end_test_fixture f =
       begin_test(config, "filter_causes_close", NULL, NULL);
   cq_verifier *cqv = cq_verifier_create(f.cq);
@@ -123,6 +124,7 @@
   grpc_call_error error;
   grpc_slice details;
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/filter_latency.c b/test/core/end2end/tests/filter_latency.c
index 2428c92..d38ce22 100644
--- a/test/core/end2end/tests/filter_latency.c
+++ b/test/core/end2end/tests/filter_latency.c
@@ -69,16 +69,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -115,7 +117,6 @@
       grpc_slice_from_copied_string("hello world");
   grpc_byte_buffer *request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
-  gpr_timespec deadline = five_seconds_time();
   grpc_end2end_test_fixture f =
       begin_test(config, "filter_latency", NULL, NULL);
   cq_verifier *cqv = cq_verifier_create(f.cq);
@@ -137,6 +138,7 @@
   gpr_mu_unlock(&g_mu);
   const gpr_timespec start_time = gpr_now(GPR_CLOCK_MONOTONIC);
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/graceful_server_shutdown.c b/test/core/end2end/tests/graceful_server_shutdown.c
index a3ad260..182bb20 100644
--- a/test/core/end2end/tests/graceful_server_shutdown.c
+++ b/test/core/end2end/tests/graceful_server_shutdown.c
@@ -57,16 +57,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -95,7 +97,6 @@
     grpc_end2end_test_config config) {
   grpc_call *c;
   grpc_call *s;
-  gpr_timespec deadline = n_seconds_time(10);
   grpc_end2end_test_fixture f = begin_test(
       config, "test_early_server_shutdown_finishes_inflight_calls", NULL, NULL);
   cq_verifier *cqv = cq_verifier_create(f.cq);
@@ -110,6 +111,7 @@
   grpc_slice details;
   int was_cancelled = 2;
 
+  gpr_timespec deadline = n_seconds_from_now(10);
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/high_initial_seqno.c b/test/core/end2end/tests/high_initial_seqno.c
index cca8532..f534a19 100644
--- a/test/core/end2end/tests/high_initial_seqno.c
+++ b/test/core/end2end/tests/high_initial_seqno.c
@@ -61,16 +61,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -103,7 +105,6 @@
                                 grpc_end2end_test_fixture f) {
   grpc_call *c;
   grpc_call *s;
-  gpr_timespec deadline = five_seconds_time();
   cq_verifier *cqv = cq_verifier_create(f.cq);
   grpc_op ops[6];
   grpc_op *op;
@@ -116,6 +117,7 @@
   grpc_slice details;
   int was_cancelled = 2;
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/hpack_size.c b/test/core/end2end/tests/hpack_size.c
index 7601722..17ef204 100644
--- a/test/core/end2end/tests/hpack_size.c
+++ b/test/core/end2end/tests/hpack_size.c
@@ -201,16 +201,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -243,7 +245,6 @@
                                 grpc_end2end_test_fixture f, size_t index) {
   grpc_call *c;
   grpc_call *s;
-  gpr_timespec deadline = five_seconds_time();
   cq_verifier *cqv = cq_verifier_create(f.cq);
   grpc_op ops[6];
   grpc_op *op;
@@ -268,6 +269,7 @@
   extra_metadata[2].value =
       grpc_slice_from_static_string(dragons[index % GPR_ARRAY_SIZE(dragons)]);
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/idempotent_request.c b/test/core/end2end/tests/idempotent_request.c
index cef2e10..f80654d 100644
--- a/test/core/end2end/tests/idempotent_request.c
+++ b/test/core/end2end/tests/idempotent_request.c
@@ -59,16 +59,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -101,7 +103,6 @@
                                 grpc_end2end_test_fixture f) {
   grpc_call *c;
   grpc_call *s;
-  gpr_timespec deadline = five_seconds_time();
   cq_verifier *cqv = cq_verifier_create(f.cq);
   grpc_op ops[6];
   grpc_op *op;
@@ -115,6 +116,7 @@
   int was_cancelled = 2;
   char *peer;
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/invoke_large_request.c b/test/core/end2end/tests/invoke_large_request.c
index d799bd8..f4b93d9 100644
--- a/test/core/end2end/tests/invoke_large_request.c
+++ b/test/core/end2end/tests/invoke_large_request.c
@@ -58,14 +58,14 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, n_seconds_time(5), NULL);
+    ev = grpc_completion_queue_next(cq, n_seconds_from_now(5), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -128,7 +128,6 @@
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
   grpc_byte_buffer *response_payload =
       grpc_raw_byte_buffer_create(&response_payload_slice, 1);
-  gpr_timespec deadline = n_seconds_time(30);
   cq_verifier *cqv = cq_verifier_create(f.cq);
   grpc_op ops[6];
   grpc_op *op;
@@ -143,6 +142,7 @@
   grpc_slice details;
   int was_cancelled = 2;
 
+  gpr_timespec deadline = n_seconds_from_now(30);
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/keepalive_timeout.c b/test/core/end2end/tests/keepalive_timeout.c
index 44b6e12..bf6ca0d 100644
--- a/test/core/end2end/tests/keepalive_timeout.c
+++ b/test/core/end2end/tests/keepalive_timeout.c
@@ -61,25 +61,27 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
 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), five_seconds_time(), NULL)
-          .type == GRPC_OP_COMPLETE);
+  GPR_ASSERT(grpc_completion_queue_pluck(f->cq, tag(1000),
+                                         five_seconds_from_now(), NULL)
+                 .type == GRPC_OP_COMPLETE);
   grpc_server_destroy(f->server);
   f->server = NULL;
 }
@@ -108,13 +110,12 @@
       grpc_slice_from_copied_string("hello world");
   grpc_byte_buffer *response_payload =
       grpc_raw_byte_buffer_create(&response_payload_slice, 1);
-  gpr_timespec deadline = five_seconds_time();
 
   grpc_arg keepalive_args[] = {{.type = GRPC_ARG_INTEGER,
-                                .key = GRPC_ARG_CLIENT_KEEPALIVE_TIME_S,
-                                .value.integer = 2},
+                                .key = GRPC_ARG_KEEPALIVE_TIME_MS,
+                                .value.integer = 1500},
                                {.type = GRPC_ARG_INTEGER,
-                                .key = GRPC_ARG_CLIENT_KEEPALIVE_TIMEOUT_S,
+                                .key = GRPC_ARG_KEEPALIVE_TIMEOUT_MS,
                                 .value.integer = 0},
                                {.type = GRPC_ARG_INTEGER,
                                 .key = GRPC_ARG_HTTP2_BDP_PROBE,
@@ -140,6 +141,7 @@
   /* Disable ping ack to trigger the keepalive timeout */
   grpc_set_disable_ping_ack(true);
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/large_metadata.c b/test/core/end2end/tests/large_metadata.c
index ac4c0e7..a670e41 100644
--- a/test/core/end2end/tests/large_metadata.c
+++ b/test/core/end2end/tests/large_metadata.c
@@ -57,16 +57,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -103,7 +105,6 @@
       grpc_slice_from_copied_string("hello world");
   grpc_byte_buffer *request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
-  gpr_timespec deadline = five_seconds_time();
   grpc_metadata meta;
   const size_t large_size = 64 * 1024;
   grpc_arg arg = {GRPC_ARG_INTEGER,
@@ -125,6 +126,7 @@
   grpc_slice details;
   int was_cancelled = 2;
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/load_reporting_hook.c b/test/core/end2end/tests/load_reporting_hook.c
index d1ee26f..ea3dd23 100644
--- a/test/core/end2end/tests/load_reporting_hook.c
+++ b/test/core/end2end/tests/load_reporting_hook.c
@@ -41,8 +41,8 @@
 #include <grpc/support/time.h>
 #include <grpc/support/useful.h>
 
-#include "src/core/ext/load_reporting/load_reporting.h"
-#include "src/core/ext/load_reporting/load_reporting_filter.h"
+#include "src/core/ext/filters/load_reporting/load_reporting.h"
+#include "src/core/ext/filters/load_reporting/load_reporting_filter.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/transport/static_metadata.h"
 
@@ -84,16 +84,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -136,7 +138,6 @@
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
   grpc_byte_buffer *response_payload =
       grpc_raw_byte_buffer_create(&response_payload_slice, 1);
-  gpr_timespec deadline = five_seconds_time();
   cq_verifier *cqv = cq_verifier_create(f.cq);
   grpc_op ops[6];
   grpc_op *op;
@@ -151,6 +152,7 @@
   grpc_slice details;
   int was_cancelled = 2;
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string(method_name),
diff --git a/test/core/end2end/tests/max_concurrent_streams.c b/test/core/end2end/tests/max_concurrent_streams.c
index e81a628..2360138 100644
--- a/test/core/end2end/tests/max_concurrent_streams.c
+++ b/test/core/end2end/tests/max_concurrent_streams.c
@@ -57,16 +57,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -99,7 +101,6 @@
                                 grpc_end2end_test_fixture f) {
   grpc_call *c;
   grpc_call *s;
-  gpr_timespec deadline = five_seconds_time();
   cq_verifier *cqv = cq_verifier_create(f.cq);
   grpc_op ops[6];
   grpc_op *op;
@@ -112,6 +113,7 @@
   grpc_slice details;
   int was_cancelled = 2;
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
@@ -257,7 +259,7 @@
 
   /* start two requests - ensuring that the second is not accepted until
      the first completes */
-  deadline = n_seconds_time(1000);
+  deadline = n_seconds_from_now(1000);
   c1 = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/alpha"),
@@ -502,13 +504,13 @@
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/alpha"),
       get_host_override_slice("foo.test.google.fr:1234", config),
-      n_seconds_time(3), NULL);
+      n_seconds_from_now(3), NULL);
   GPR_ASSERT(c1);
   c2 = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/beta"),
       get_host_override_slice("foo.test.google.fr:1234", config),
-      n_seconds_time(1000), NULL);
+      n_seconds_from_now(1000), NULL);
   GPR_ASSERT(c2);
 
   GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call(
@@ -697,13 +699,13 @@
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/alpha"),
       get_host_override_slice("foo.test.google.fr:1234", config),
-      n_seconds_time(1000), NULL);
+      n_seconds_from_now(1000), NULL);
   GPR_ASSERT(c1);
   c2 = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/beta"),
       get_host_override_slice("foo.test.google.fr:1234", config),
-      n_seconds_time(3), NULL);
+      n_seconds_from_now(3), NULL);
   GPR_ASSERT(c2);
 
   GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call(
diff --git a/test/core/end2end/tests/max_connection_age.c b/test/core/end2end/tests/max_connection_age.c
index 59bfdba..04bdb39 100644
--- a/test/core/end2end/tests/max_connection_age.c
+++ b/test/core/end2end/tests/max_connection_age.c
@@ -47,6 +47,7 @@
 #define MAX_CONNECTION_AGE_GRACE_MS 1000
 #define MAX_CONNECTION_IDLE_MS 9999
 
+#define MAX_CONNECTION_AGE_JITTER_MULTIPLIER 1.1
 #define CALL_DEADLINE_S 10
 /* The amount of time we wait for the connection to time out, but after it the
    connection should not use up its grace period. It should be a number between
@@ -169,8 +170,8 @@
   cq_verify(cqv);
 
   gpr_timespec expect_shutdown_time = grpc_timeout_milliseconds_to_deadline(
-      MAX_CONNECTION_AGE_MS + MAX_CONNECTION_AGE_GRACE_MS +
-      IMMEDIATE_SHUTDOWN_GRACE_TIME_MS);
+      (int)(MAX_CONNECTION_AGE_MS * MAX_CONNECTION_AGE_JITTER_MULTIPLIER) +
+      MAX_CONNECTION_AGE_GRACE_MS + IMMEDIATE_SHUTDOWN_GRACE_TIME_MS);
 
   /* Wait for the channel to reach its max age */
   cq_verify_empty_timeout(cqv, CQ_MAX_CONNECTION_AGE_WAIT_TIME_S);
diff --git a/test/core/end2end/tests/max_message_length.c b/test/core/end2end/tests/max_message_length.c
index b15d30f..ab58d9f 100644
--- a/test/core/end2end/tests/max_message_length.c
+++ b/test/core/end2end/tests/max_message_length.c
@@ -66,16 +66,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
diff --git a/test/core/end2end/tests/negative_deadline.c b/test/core/end2end/tests/negative_deadline.c
index 0b61efb..e7448bd 100644
--- a/test/core/end2end/tests/negative_deadline.c
+++ b/test/core/end2end/tests/negative_deadline.c
@@ -59,16 +59,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -100,7 +102,6 @@
 static void simple_request_body(grpc_end2end_test_config config,
                                 grpc_end2end_test_fixture f, size_t num_ops) {
   grpc_call *c;
-  gpr_timespec deadline = gpr_inf_past(GPR_CLOCK_REALTIME);
   cq_verifier *cqv = cq_verifier_create(f.cq);
   grpc_op ops[6];
   grpc_op *op;
@@ -112,6 +113,7 @@
 
   gpr_log(GPR_DEBUG, "test with %" PRIuPTR " ops", num_ops);
 
+  gpr_timespec deadline = gpr_inf_past(GPR_CLOCK_REALTIME);
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/network_status_change.c b/test/core/end2end/tests/network_status_change.c
index d7a4106..1a5f2b2 100644
--- a/test/core/end2end/tests/network_status_change.c
+++ b/test/core/end2end/tests/network_status_change.c
@@ -60,16 +60,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(500); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(500);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -106,7 +108,6 @@
       grpc_slice_from_copied_string("hello world");
   grpc_byte_buffer *request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
-  gpr_timespec deadline = five_seconds_time();
   grpc_end2end_test_fixture f =
       begin_test(config, "test_invoke_request_with_payload", NULL, NULL);
   cq_verifier *cqv = cq_verifier_create(f.cq);
@@ -122,6 +123,7 @@
   grpc_slice details;
   int was_cancelled = 2;
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/no_logging.c b/test/core/end2end/tests/no_logging.c
index 56e48a8..683d646 100644
--- a/test/core/end2end/tests/no_logging.c
+++ b/test/core/end2end/tests/no_logging.c
@@ -87,16 +87,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -129,7 +131,6 @@
                                 grpc_end2end_test_fixture f) {
   grpc_call *c;
   grpc_call *s;
-  gpr_timespec deadline = five_seconds_time();
   cq_verifier *cqv = cq_verifier_create(f.cq);
   grpc_op ops[6];
   grpc_op *op;
@@ -143,6 +144,7 @@
   int was_cancelled = 2;
   char *peer;
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/no_op.c b/test/core/end2end/tests/no_op.c
index 62fc728..698d8fb 100644
--- a/test/core/end2end/tests/no_op.c
+++ b/test/core/end2end/tests/no_op.c
@@ -57,16 +57,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
diff --git a/test/core/end2end/tests/payload.c b/test/core/end2end/tests/payload.c
index b04ee57..5751b80 100644
--- a/test/core/end2end/tests/payload.c
+++ b/test/core/end2end/tests/payload.c
@@ -57,16 +57,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -126,7 +128,6 @@
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
   grpc_byte_buffer *response_payload =
       grpc_raw_byte_buffer_create(&response_payload_slice, 1);
-  gpr_timespec deadline = n_seconds_time(60);
   cq_verifier *cqv = cq_verifier_create(f.cq);
   grpc_op ops[6];
   grpc_op *op;
@@ -141,6 +142,7 @@
   grpc_slice details;
   int was_cancelled = 2;
 
+  gpr_timespec deadline = n_seconds_from_now(60);
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/ping.c b/test/core/end2end/tests/ping.c
index 082ac64..c51c499 100644
--- a/test/core/end2end/tests/ping.c
+++ b/test/core/end2end/tests/ping.c
@@ -52,16 +52,26 @@
   grpc_connectivity_state state = GRPC_CHANNEL_IDLE;
   int i;
 
-  grpc_arg a[] = {{.type = GRPC_ARG_INTEGER,
-                   .key = GRPC_ARG_HTTP2_MIN_TIME_BETWEEN_PINGS_MS,
-                   .value.integer = min_time_between_pings_ms},
-                  {.type = GRPC_ARG_INTEGER,
-                   .key = GRPC_ARG_HTTP2_MAX_PINGS_WITHOUT_DATA,
-                   .value.integer = 20}};
-  grpc_channel_args client_args = {.num_args = GPR_ARRAY_SIZE(a), .args = a};
+  grpc_arg client_a[] = {{.type = GRPC_ARG_INTEGER,
+                          .key = GRPC_ARG_HTTP2_MIN_TIME_BETWEEN_PINGS_MS,
+                          .value.integer = 0},
+                         {.type = GRPC_ARG_INTEGER,
+                          .key = GRPC_ARG_HTTP2_MAX_PINGS_WITHOUT_DATA,
+                          .value.integer = 20}};
+  grpc_arg server_a[] = {
+      {.type = GRPC_ARG_INTEGER,
+       .key = GRPC_ARG_HTTP2_MIN_PING_INTERVAL_WITHOUT_DATA_MS,
+       .value.integer = 0},
+      {.type = GRPC_ARG_INTEGER,
+       .key = GRPC_ARG_KEEPALIVE_PERMIT_WITHOUT_CALLS,
+       .value.integer = 1}};
+  grpc_channel_args client_args = {.num_args = GPR_ARRAY_SIZE(client_a),
+                                   .args = client_a};
+  grpc_channel_args server_args = {.num_args = GPR_ARRAY_SIZE(server_a),
+                                   .args = server_a};
 
   config.init_client(&f, &client_args);
-  config.init_server(&f, NULL);
+  config.init_server(&f, &server_args);
 
   grpc_channel_ping(f.client, f.cq, tag(0), NULL);
   CQ_EXPECT_COMPLETION(cqv, tag(0), 0);
diff --git a/test/core/end2end/tests/ping_pong_streaming.c b/test/core/end2end/tests/ping_pong_streaming.c
index 848f760..cd81ce2 100644
--- a/test/core/end2end/tests/ping_pong_streaming.c
+++ b/test/core/end2end/tests/ping_pong_streaming.c
@@ -57,16 +57,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -102,7 +104,6 @@
       begin_test(config, "test_pingpong_streaming", NULL, NULL);
   grpc_call *c;
   grpc_call *s;
-  gpr_timespec deadline = five_seconds_time();
   cq_verifier *cqv = cq_verifier_create(f.cq);
   grpc_op ops[6];
   grpc_op *op;
@@ -124,6 +125,7 @@
   grpc_slice response_payload_slice =
       grpc_slice_from_copied_string("hello you");
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/registered_call.c b/test/core/end2end/tests/registered_call.c
index 9c8ce89..242add3 100644
--- a/test/core/end2end/tests/registered_call.c
+++ b/test/core/end2end/tests/registered_call.c
@@ -59,16 +59,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -101,7 +103,6 @@
                                 grpc_end2end_test_fixture f, void *rc) {
   grpc_call *c;
   grpc_call *s;
-  gpr_timespec deadline = five_seconds_time();
   cq_verifier *cqv = cq_verifier_create(f.cq);
   grpc_op ops[6];
   grpc_op *op;
@@ -114,6 +115,7 @@
   grpc_slice details;
   int was_cancelled = 2;
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_registered_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq, rc, deadline, NULL);
   GPR_ASSERT(c);
diff --git a/test/core/end2end/tests/request_with_flags.c b/test/core/end2end/tests/request_with_flags.c
index 329359e..10ecf5b 100644
--- a/test/core/end2end/tests/request_with_flags.c
+++ b/test/core/end2end/tests/request_with_flags.c
@@ -58,16 +58,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -104,7 +106,6 @@
       grpc_slice_from_copied_string("hello world");
   grpc_byte_buffer *request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
-  gpr_timespec deadline = five_seconds_time();
   grpc_end2end_test_fixture f =
       begin_test(config, "test_invoke_request_with_flags", NULL, NULL);
   cq_verifier *cqv = cq_verifier_create(f.cq);
@@ -120,6 +121,7 @@
   grpc_slice details;
   grpc_call_error expectation;
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/request_with_payload.c b/test/core/end2end/tests/request_with_payload.c
index f71f92b..4eb3399 100644
--- a/test/core/end2end/tests/request_with_payload.c
+++ b/test/core/end2end/tests/request_with_payload.c
@@ -57,16 +57,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -103,7 +105,6 @@
       grpc_slice_from_copied_string("hello world");
   grpc_byte_buffer *request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
-  gpr_timespec deadline = five_seconds_time();
   grpc_end2end_test_fixture f =
       begin_test(config, "test_invoke_request_with_payload", NULL, NULL);
   cq_verifier *cqv = cq_verifier_create(f.cq);
@@ -119,6 +120,7 @@
   grpc_slice details;
   int was_cancelled = 2;
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/resource_quota_server.c b/test/core/end2end/tests/resource_quota_server.c
index db26b44..4d3ce1c 100644
--- a/test/core/end2end/tests/resource_quota_server.c
+++ b/test/core/end2end/tests/resource_quota_server.c
@@ -57,16 +57,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -195,7 +197,7 @@
         f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
         grpc_slice_from_static_string("/foo"),
         get_host_override_slice("foo.test.google.fr", config),
-        n_seconds_time(60), NULL);
+        n_seconds_from_now(60), NULL);
 
     memset(ops, 0, sizeof(ops));
     op = ops;
@@ -237,7 +239,8 @@
   while (pending_client_calls + pending_server_recv_calls +
              pending_server_end_calls >
          0) {
-    grpc_event ev = grpc_completion_queue_next(f.cq, n_seconds_time(60), NULL);
+    grpc_event ev =
+        grpc_completion_queue_next(f.cq, n_seconds_from_now(60), NULL);
     GPR_ASSERT(ev.type == GRPC_OP_COMPLETE);
 
     int ev_tag = (int)(intptr_t)ev.tag;
diff --git a/test/core/end2end/tests/server_finishes_request.c b/test/core/end2end/tests/server_finishes_request.c
index b42d170..88bc90e 100644
--- a/test/core/end2end/tests/server_finishes_request.c
+++ b/test/core/end2end/tests/server_finishes_request.c
@@ -59,16 +59,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -101,7 +103,6 @@
                                 grpc_end2end_test_fixture f) {
   grpc_call *c;
   grpc_call *s;
-  gpr_timespec deadline = five_seconds_time();
   cq_verifier *cqv = cq_verifier_create(f.cq);
   grpc_op ops[6];
   grpc_op *op;
@@ -114,6 +115,7 @@
   grpc_slice details;
   int was_cancelled = 2;
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/shutdown_finishes_calls.c b/test/core/end2end/tests/shutdown_finishes_calls.c
index c019682..6f9421d 100644
--- a/test/core/end2end/tests/shutdown_finishes_calls.c
+++ b/test/core/end2end/tests/shutdown_finishes_calls.c
@@ -57,16 +57,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -88,7 +90,6 @@
     grpc_end2end_test_config config) {
   grpc_call *c;
   grpc_call *s;
-  gpr_timespec deadline = five_seconds_time();
   grpc_end2end_test_fixture f = begin_test(
       config, "test_early_server_shutdown_finishes_inflight_calls", NULL, NULL);
   cq_verifier *cqv = cq_verifier_create(f.cq);
@@ -103,6 +104,7 @@
   grpc_slice details;
   int was_cancelled = 2;
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/shutdown_finishes_tags.c b/test/core/end2end/tests/shutdown_finishes_tags.c
index 5540d2a..51a2423 100644
--- a/test/core/end2end/tests/shutdown_finishes_tags.c
+++ b/test/core/end2end/tests/shutdown_finishes_tags.c
@@ -57,16 +57,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
diff --git a/test/core/end2end/tests/simple_cacheable_request.c b/test/core/end2end/tests/simple_cacheable_request.c
index 4eef02e..4f1013a 100644
--- a/test/core/end2end/tests/simple_cacheable_request.c
+++ b/test/core/end2end/tests/simple_cacheable_request.c
@@ -59,16 +59,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -110,7 +112,6 @@
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
   grpc_byte_buffer *response_payload =
       grpc_raw_byte_buffer_create(&response_payload_slice, 1);
-  gpr_timespec deadline = five_seconds_time();
   grpc_metadata meta_c[2] = {{grpc_slice_from_static_string("key1"),
                               grpc_slice_from_static_string("val1"),
                               0,
@@ -144,6 +145,7 @@
   grpc_slice details;
   int was_cancelled = 2;
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/simple_delayed_request.c b/test/core/end2end/tests/simple_delayed_request.c
index e3b6aee..978dff0 100644
--- a/test/core/end2end/tests/simple_delayed_request.c
+++ b/test/core/end2end/tests/simple_delayed_request.c
@@ -45,16 +45,18 @@
 
 static void *tag(intptr_t t) { return (void *)t; }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -90,7 +92,6 @@
                                         long delay_us) {
   grpc_call *c;
   grpc_call *s;
-  gpr_timespec deadline = five_seconds_time();
   cq_verifier *cqv = cq_verifier_create(f->cq);
   grpc_op ops[6];
   grpc_op *op;
@@ -106,6 +107,7 @@
   config.init_client(f, client_args);
   config.init_server(f, server_args);
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f->client, NULL, GRPC_PROPAGATE_DEFAULTS, f->cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/simple_metadata.c b/test/core/end2end/tests/simple_metadata.c
index 7ab5563..83d1037 100644
--- a/test/core/end2end/tests/simple_metadata.c
+++ b/test/core/end2end/tests/simple_metadata.c
@@ -57,16 +57,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -108,7 +110,6 @@
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
   grpc_byte_buffer *response_payload =
       grpc_raw_byte_buffer_create(&response_payload_slice, 1);
-  gpr_timespec deadline = five_seconds_time();
   grpc_metadata meta_c[2] = {{grpc_slice_from_static_string("key1"),
                               grpc_slice_from_static_string("val1"),
                               0,
@@ -141,6 +142,7 @@
   grpc_slice details;
   int was_cancelled = 2;
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/simple_request.c b/test/core/end2end/tests/simple_request.c
index af5d749..31bfef4 100644
--- a/test/core/end2end/tests/simple_request.c
+++ b/test/core/end2end/tests/simple_request.c
@@ -59,16 +59,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -101,7 +103,6 @@
                                 grpc_end2end_test_fixture f) {
   grpc_call *c;
   grpc_call *s;
-  gpr_timespec deadline = five_seconds_time();
   cq_verifier *cqv = cq_verifier_create(f.cq);
   grpc_op ops[6];
   grpc_op *op;
@@ -115,6 +116,7 @@
   int was_cancelled = 2;
   char *peer;
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/streaming_error_response.c b/test/core/end2end/tests/streaming_error_response.c
index 2b9c404..c652d94 100644
--- a/test/core/end2end/tests/streaming_error_response.c
+++ b/test/core/end2end/tests/streaming_error_response.c
@@ -62,16 +62,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -110,7 +112,6 @@
   grpc_slice response_payload2_slice = grpc_slice_from_copied_string("world");
   grpc_byte_buffer *response_payload2 =
       grpc_raw_byte_buffer_create(&response_payload2_slice, 1);
-  gpr_timespec deadline = five_seconds_time();
   grpc_end2end_test_fixture f = begin_test(config, "streaming_error_response",
                                            NULL, NULL, request_status_early);
   cq_verifier *cqv = cq_verifier_create(f.cq);
@@ -127,6 +128,7 @@
   grpc_slice details;
   int was_cancelled = 2;
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/trailing_metadata.c b/test/core/end2end/tests/trailing_metadata.c
index dbbda50..3cbffdf 100644
--- a/test/core/end2end/tests/trailing_metadata.c
+++ b/test/core/end2end/tests/trailing_metadata.c
@@ -57,16 +57,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -108,7 +110,6 @@
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
   grpc_byte_buffer *response_payload =
       grpc_raw_byte_buffer_create(&response_payload_slice, 1);
-  gpr_timespec deadline = five_seconds_time();
   grpc_metadata meta_c[2] = {{grpc_slice_from_static_string("key1"),
                               grpc_slice_from_static_string("val1"),
                               0,
@@ -149,6 +150,7 @@
   grpc_slice details;
   int was_cancelled = 2;
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/write_buffering.c b/test/core/end2end/tests/write_buffering.c
index abf90ca..2d4142b 100644
--- a/test/core/end2end/tests/write_buffering.c
+++ b/test/core/end2end/tests/write_buffering.c
@@ -57,16 +57,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -106,7 +108,6 @@
   grpc_slice request_payload_slice2 = grpc_slice_from_copied_string("abc123");
   grpc_byte_buffer *request_payload2 =
       grpc_raw_byte_buffer_create(&request_payload_slice2, 1);
-  gpr_timespec deadline = five_seconds_time();
   grpc_end2end_test_fixture f =
       begin_test(config, "test_invoke_request_with_payload", NULL, NULL);
   cq_verifier *cqv = cq_verifier_create(f.cq);
@@ -123,6 +124,7 @@
   grpc_slice details = grpc_empty_slice();
   int was_cancelled = 2;
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/end2end/tests/write_buffering_at_end.c b/test/core/end2end/tests/write_buffering_at_end.c
index 8c02b42..e61343e 100644
--- a/test/core/end2end/tests/write_buffering_at_end.c
+++ b/test/core/end2end/tests/write_buffering_at_end.c
@@ -57,16 +57,18 @@
   return f;
 }
 
-static gpr_timespec n_seconds_time(int n) {
+static gpr_timespec n_seconds_from_now(int n) {
   return grpc_timeout_seconds_to_deadline(n);
 }
 
-static gpr_timespec five_seconds_time(void) { return n_seconds_time(5); }
+static gpr_timespec five_seconds_from_now(void) {
+  return n_seconds_from_now(5);
+}
 
 static void drain_cq(grpc_completion_queue *cq) {
   grpc_event ev;
   do {
-    ev = grpc_completion_queue_next(cq, five_seconds_time(), NULL);
+    ev = grpc_completion_queue_next(cq, five_seconds_from_now(), NULL);
   } while (ev.type != GRPC_QUEUE_SHUTDOWN);
 }
 
@@ -103,7 +105,6 @@
       grpc_slice_from_copied_string("hello world");
   grpc_byte_buffer *request_payload =
       grpc_raw_byte_buffer_create(&request_payload_slice, 1);
-  gpr_timespec deadline = five_seconds_time();
   grpc_end2end_test_fixture f =
       begin_test(config, "test_invoke_request_with_payload", NULL, NULL);
   cq_verifier *cqv = cq_verifier_create(f.cq);
@@ -120,6 +121,7 @@
   grpc_slice details = grpc_empty_slice();
   int was_cancelled = 2;
 
+  gpr_timespec deadline = five_seconds_from_now();
   c = grpc_channel_create_call(
       f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
       grpc_slice_from_static_string("/foo"),
diff --git a/test/core/nanopb/fuzzer_response.c b/test/core/nanopb/fuzzer_response.c
index 202c120..35c0efe 100644
--- a/test/core/nanopb/fuzzer_response.c
+++ b/test/core/nanopb/fuzzer_response.c
@@ -36,7 +36,7 @@
 
 #include <grpc/support/alloc.h>
 
-#include "src/core/ext/lb_policy/grpclb/load_balancer_api.h"
+#include "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h"
 
 bool squelch = true;
 bool leak_check = true;
diff --git a/test/core/nanopb/fuzzer_serverlist.c b/test/core/nanopb/fuzzer_serverlist.c
index b225ae0..e1df401 100644
--- a/test/core/nanopb/fuzzer_serverlist.c
+++ b/test/core/nanopb/fuzzer_serverlist.c
@@ -36,7 +36,7 @@
 
 #include <grpc/support/alloc.h>
 
-#include "src/core/ext/lb_policy/grpclb/load_balancer_api.h"
+#include "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h"
 
 bool squelch = true;
 bool leak_check = true;
diff --git a/test/core/surface/channel_create_test.c b/test/core/surface/channel_create_test.c
index 654e532..21bf6a0 100644
--- a/test/core/surface/channel_create_test.c
+++ b/test/core/surface/channel_create_test.c
@@ -36,7 +36,7 @@
 #include <grpc/grpc.h>
 #include <grpc/support/log.h>
 
-#include "src/core/ext/client_channel/resolver_registry.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
 #include "src/core/lib/channel/channel_stack.h"
 #include "src/core/lib/surface/channel.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 567f8ae..adb956c 100644
--- a/test/core/surface/secure_channel_create_test.c
+++ b/test/core/surface/secure_channel_create_test.c
@@ -36,7 +36,7 @@
 #include <grpc/grpc.h>
 #include <grpc/grpc_security.h>
 #include <grpc/support/log.h>
-#include "src/core/ext/client_channel/resolver_registry.h"
+#include "src/core/ext/filters/client_channel/resolver_registry.h"
 #include "src/core/lib/security/credentials/fake/fake_credentials.h"
 #include "src/core/lib/security/transport/security_connector.h"
 #include "src/core/lib/surface/channel.h"
diff --git a/test/core/util/debugger_macros.c b/test/core/util/debugger_macros.c
index de6a2f3..af61d93 100644
--- a/test/core/util/debugger_macros.c
+++ b/test/core/util/debugger_macros.c
@@ -39,7 +39,7 @@
 
 #include <stdio.h>
 
-#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
 #include "src/core/ext/transport/chttp2/transport/internal.h"
 #include "src/core/lib/channel/connected_channel.h"
 #include "src/core/lib/surface/call.h"
diff --git a/test/cpp/grpclb/grpclb_api_test.cc b/test/cpp/grpclb/grpclb_api_test.cc
index 82ccf43..d9df2bb 100644
--- a/test/cpp/grpclb/grpclb_api_test.cc
+++ b/test/cpp/grpclb/grpclb_api_test.cc
@@ -34,7 +34,7 @@
 #include <grpc++/impl/codegen/config.h>
 #include <gtest/gtest.h>
 
-#include "src/core/ext/lb_policy/grpclb/load_balancer_api.h"
+#include "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h"
 #include "src/core/lib/iomgr/sockaddr.h"
 #include "src/core/lib/iomgr/sockaddr_utils.h"
 #include "src/proto/grpc/lb/v1/load_balancer.pb.h"  // C++ version
diff --git a/test/cpp/grpclb/grpclb_test.cc b/test/cpp/grpclb/grpclb_test.cc
index 89ed924..eb3e5b6 100644
--- a/test/cpp/grpclb/grpclb_test.cc
+++ b/test/cpp/grpclb/grpclb_test.cc
@@ -51,7 +51,7 @@
 
 #include <grpc++/impl/codegen/config.h>
 extern "C" {
-#include "src/core/ext/client_channel/client_channel.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
 #include "src/core/lib/channel/channel_args.h"
 #include "src/core/lib/channel/channel_stack.h"
 #include "src/core/lib/iomgr/sockaddr.h"
diff --git a/test/cpp/interop/client.cc b/test/cpp/interop/client.cc
index 5688ab7..369413e 100644
--- a/test/cpp/interop/client.cc
+++ b/test/cpp/interop/client.cc
@@ -99,6 +99,7 @@
 
 using grpc::testing::CreateChannelForTestCase;
 using grpc::testing::GetServiceAccountJsonKey;
+using grpc::testing::UpdateActions;
 
 int main(int argc, char** argv) {
   grpc::testing::InitTest(&argc, &argv, true);
@@ -165,6 +166,8 @@
   // actions["cacheable_unary"] =
   //    std::bind(&grpc::testing::InteropClient::DoCacheableUnary, &client);
 
+  UpdateActions(&actions);
+
   if (FLAGS_test_case == "all") {
     for (const auto& action : actions) {
       action.second();
diff --git a/test/cpp/interop/client_helper.cc b/test/cpp/interop/client_helper.cc
index d3192ad..784cd28 100644
--- a/test/cpp/interop/client_helper.cc
+++ b/test/cpp/interop/client_helper.cc
@@ -89,6 +89,9 @@
   return access_token;
 }
 
+void UpdateActions(
+    std::unordered_map<grpc::string, std::function<bool()>>* actions) {}
+
 std::shared_ptr<Channel> CreateChannelForTestCase(
     const grpc::string& test_case) {
   GPR_ASSERT(FLAGS_server_port);
diff --git a/test/cpp/interop/client_helper.h b/test/cpp/interop/client_helper.h
index 622b96e..387530a 100644
--- a/test/cpp/interop/client_helper.h
+++ b/test/cpp/interop/client_helper.h
@@ -35,6 +35,7 @@
 #define GRPC_TEST_CPP_INTEROP_CLIENT_HELPER_H
 
 #include <memory>
+#include <unordered_map>
 
 #include <grpc++/channel.h>
 
@@ -47,6 +48,9 @@
 
 grpc::string GetOauth2AccessToken();
 
+void UpdateActions(
+    std::unordered_map<grpc::string, std::function<bool()>>* actions);
+
 std::shared_ptr<Channel> CreateChannelForTestCase(
     const grpc::string& test_case);
 
diff --git a/test/cpp/microbenchmarks/bm_call_create.cc b/test/cpp/microbenchmarks/bm_call_create.cc
index 0a8c0ec..136b7c0 100644
--- a/test/cpp/microbenchmarks/bm_call_create.cc
+++ b/test/cpp/microbenchmarks/bm_call_create.cc
@@ -45,8 +45,8 @@
 #include <grpc/support/string_util.h>
 
 extern "C" {
-#include "src/core/ext/client_channel/client_channel.h"
-#include "src/core/ext/load_reporting/load_reporting_filter.h"
+#include "src/core/ext/filters/client_channel/client_channel.h"
+#include "src/core/ext/filters/load_reporting/load_reporting_filter.h"
 #include "src/core/lib/channel/channel_stack.h"
 #include "src/core/lib/channel/compress_filter.h"
 #include "src/core/lib/channel/connected_channel.h"
@@ -54,6 +54,7 @@
 #include "src/core/lib/channel/http_client_filter.h"
 #include "src/core/lib/channel/http_server_filter.h"
 #include "src/core/lib/channel/message_size_filter.h"
+#include "src/core/lib/profiling/timers.h"
 #include "src/core/lib/surface/channel.h"
 #include "src/core/lib/transport/transport_impl.h"
 }
@@ -152,6 +153,7 @@
   grpc::testing::EchoResponse recv_response;
   grpc::Status recv_status;
   while (state.KeepRunning()) {
+    GPR_TIMER_SCOPE("BenchmarkCycle", 0);
     grpc::ClientContext cli_ctx;
     auto reader = stub->AsyncEcho(&cli_ctx, send_request, &cq);
     reader->Finish(&recv_response, &recv_status, tag(0));
@@ -429,6 +431,7 @@
   const int kArenaSize = 4096;
   call_args.arena = gpr_arena_create(kArenaSize);
   while (state.KeepRunning()) {
+    GPR_TIMER_SCOPE("BenchmarkCycle", 0);
     GRPC_ERROR_UNREF(grpc_call_stack_init(&exec_ctx, channel_stack, 1,
                                           DoNothing, NULL, &call_args));
     typename TestOp::Op op(&exec_ctx, &test_op_data, call_stack);
@@ -596,6 +599,7 @@
   void *method_hdl =
       grpc_channel_register_call(fixture.channel(), "/foo/bar", NULL, NULL);
   while (state.KeepRunning()) {
+    GPR_TIMER_SCOPE("BenchmarkCycle", 0);
     grpc_call_destroy(grpc_channel_create_registered_call(
         fixture.channel(), nullptr, GRPC_PROPAGATE_DEFAULTS, fixture.cq(),
         method_hdl, deadline, NULL));
@@ -634,6 +638,7 @@
   ops[5].data.recv_status_on_client.status_details = &status_details;
   ops[5].data.recv_status_on_client.trailing_metadata = &recv_trailing_metadata;
   while (state.KeepRunning()) {
+    GPR_TIMER_SCOPE("BenchmarkCycle", 0);
     grpc_call *call = grpc_channel_create_registered_call(
         fixture.channel(), nullptr, GRPC_PROPAGATE_DEFAULTS, fixture.cq(),
         method_hdl, deadline, NULL);
@@ -676,6 +681,7 @@
   ops[0].op = GRPC_OP_SEND_MESSAGE;
   ops[0].data.send_message.send_message = send_message;
   while (state.KeepRunning()) {
+    GPR_TIMER_SCOPE("BenchmarkCycle", 0);
     grpc_call_start_batch(call, ops, 1, tag(2), NULL);
     grpc_completion_queue_next(fixture.cq(),
                                gpr_inf_future(GPR_CLOCK_MONOTONIC), NULL);
diff --git a/tools/codegen/core/gen_nano_proto.sh b/tools/codegen/core/gen_nano_proto.sh
index 8600573..7bb9fc1 100755
--- a/tools/codegen/core/gen_nano_proto.sh
+++ b/tools/codegen/core/gen_nano_proto.sh
@@ -32,8 +32,8 @@
 # Example usage:
 #   tools/codegen/core/gen_nano_proto.sh \
 #     src/proto/grpc/lb/v1/load_balancer.proto \
-#     $PWD/src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1 \
-#     src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1
+#     $PWD/src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1 \
+#     src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1
 #
 # Exit statuses:
 # 1: Incorrect number of arguments
diff --git a/tools/distrib/check_copyright.py b/tools/distrib/check_copyright.py
index 710e870..42005e3 100755
--- a/tools/distrib/check_copyright.py
+++ b/tools/distrib/check_copyright.py
@@ -104,8 +104,8 @@
   'examples/python/route_guide/route_guide_pb2.py',
   'examples/python/route_guide/route_guide_pb2_grpc.py',
 
-  'src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h',
-  'src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c',
+  'src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h',
+  'src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c',
   'src/cpp/server/health/health.pb.h',
   'src/cpp/server/health/health.pb.c',
 
diff --git a/tools/distrib/check_include_guards.py b/tools/distrib/check_include_guards.py
index 2831281..c7c2678 100755
--- a/tools/distrib/check_include_guards.py
+++ b/tools/distrib/check_include_guards.py
@@ -171,7 +171,7 @@
 args = argp.parse_args()
 
 KNOWN_BAD = set([
-    'src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h',
+    'src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h',
     'include/grpc++/ext/reflection.grpc.pb.h',
     'include/grpc++/ext/reflection.pb.h',
 ])
diff --git a/tools/distrib/check_nanopb_output.sh b/tools/distrib/check_nanopb_output.sh
index eb64e23..ba50282 100755
--- a/tools/distrib/check_nanopb_output.sh
+++ b/tools/distrib/check_nanopb_output.sh
@@ -58,7 +58,7 @@
 #
 # Checks for load_balancer.proto
 #
-readonly LOAD_BALANCER_GRPC_OUTPUT_PATH='src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1'
+readonly LOAD_BALANCER_GRPC_OUTPUT_PATH='src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1'
 # nanopb-compile the proto to a temp location
 ./tools/codegen/core/gen_nano_proto.sh \
   src/proto/grpc/lb/v1/load_balancer.proto \
@@ -66,7 +66,7 @@
   "$LOAD_BALANCER_GRPC_OUTPUT_PATH"
 
 # compare outputs to checked compiled code
-if ! diff -r $NANOPB_TMP_OUTPUT src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1; then
+if ! diff -r $NANOPB_TMP_OUTPUT src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1; then
   echo "Outputs differ: $NANOPB_TMP_OUTPUT vs $LOAD_BALANCER_GRPC_OUTPUT_PATH"
   exit 2
 fi
diff --git a/tools/doxygen/Doxyfile.c++.internal b/tools/doxygen/Doxyfile.c++.internal
index 6d171e3..209d544 100644
--- a/tools/doxygen/Doxyfile.c++.internal
+++ b/tools/doxygen/Doxyfile.c++.internal
@@ -923,8 +923,6 @@
 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/max_age_filter.c \
-src/core/lib/channel/max_age_filter.h \
 src/core/lib/channel/message_size_filter.c \
 src/core/lib/channel/message_size_filter.h \
 src/core/lib/compression/algorithm_metadata.h \
diff --git a/tools/doxygen/Doxyfile.core.internal b/tools/doxygen/Doxyfile.core.internal
index a934349..6903a0e 100644
--- a/tools/doxygen/Doxyfile.core.internal
+++ b/tools/doxygen/Doxyfile.core.internal
@@ -895,69 +895,71 @@
 src/core/ext/census/trace_string.h \
 src/core/ext/census/tracing.c \
 src/core/ext/census/tracing.h \
-src/core/ext/client_channel/README.md \
-src/core/ext/client_channel/channel_connectivity.c \
-src/core/ext/client_channel/client_channel.c \
-src/core/ext/client_channel/client_channel.h \
-src/core/ext/client_channel/client_channel_factory.c \
-src/core/ext/client_channel/client_channel_factory.h \
-src/core/ext/client_channel/client_channel_plugin.c \
-src/core/ext/client_channel/connector.c \
-src/core/ext/client_channel/connector.h \
-src/core/ext/client_channel/http_connect_handshaker.c \
-src/core/ext/client_channel/http_connect_handshaker.h \
-src/core/ext/client_channel/http_proxy.c \
-src/core/ext/client_channel/http_proxy.h \
-src/core/ext/client_channel/lb_policy.c \
-src/core/ext/client_channel/lb_policy.h \
-src/core/ext/client_channel/lb_policy_factory.c \
-src/core/ext/client_channel/lb_policy_factory.h \
-src/core/ext/client_channel/lb_policy_registry.c \
-src/core/ext/client_channel/lb_policy_registry.h \
-src/core/ext/client_channel/parse_address.c \
-src/core/ext/client_channel/parse_address.h \
-src/core/ext/client_channel/proxy_mapper.c \
-src/core/ext/client_channel/proxy_mapper.h \
-src/core/ext/client_channel/proxy_mapper_registry.c \
-src/core/ext/client_channel/proxy_mapper_registry.h \
-src/core/ext/client_channel/resolver.c \
-src/core/ext/client_channel/resolver.h \
-src/core/ext/client_channel/resolver_factory.c \
-src/core/ext/client_channel/resolver_factory.h \
-src/core/ext/client_channel/resolver_registry.c \
-src/core/ext/client_channel/resolver_registry.h \
-src/core/ext/client_channel/retry_throttle.c \
-src/core/ext/client_channel/retry_throttle.h \
-src/core/ext/client_channel/subchannel.c \
-src/core/ext/client_channel/subchannel.h \
-src/core/ext/client_channel/subchannel_index.c \
-src/core/ext/client_channel/subchannel_index.h \
-src/core/ext/client_channel/uri_parser.c \
-src/core/ext/client_channel/uri_parser.h \
-src/core/ext/lb_policy/grpclb/grpclb.c \
-src/core/ext/lb_policy/grpclb/grpclb.h \
-src/core/ext/lb_policy/grpclb/grpclb_channel.h \
-src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c \
-src/core/ext/lb_policy/grpclb/load_balancer_api.c \
-src/core/ext/lb_policy/grpclb/load_balancer_api.h \
-src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c \
-src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h \
-src/core/ext/lb_policy/pick_first/pick_first.c \
-src/core/ext/lb_policy/round_robin/round_robin.c \
-src/core/ext/load_reporting/load_reporting.c \
-src/core/ext/load_reporting/load_reporting.h \
-src/core/ext/load_reporting/load_reporting_filter.c \
-src/core/ext/load_reporting/load_reporting_filter.h \
-src/core/ext/resolver/README.md \
-src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c \
-src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h \
-src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c \
-src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c \
-src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h \
-src/core/ext/resolver/dns/native/README.md \
-src/core/ext/resolver/dns/native/dns_resolver.c \
-src/core/ext/resolver/sockaddr/README.md \
-src/core/ext/resolver/sockaddr/sockaddr_resolver.c \
+src/core/ext/filters/client_channel/README.md \
+src/core/ext/filters/client_channel/channel_connectivity.c \
+src/core/ext/filters/client_channel/client_channel.c \
+src/core/ext/filters/client_channel/client_channel.h \
+src/core/ext/filters/client_channel/client_channel_factory.c \
+src/core/ext/filters/client_channel/client_channel_factory.h \
+src/core/ext/filters/client_channel/client_channel_plugin.c \
+src/core/ext/filters/client_channel/connector.c \
+src/core/ext/filters/client_channel/connector.h \
+src/core/ext/filters/client_channel/http_connect_handshaker.c \
+src/core/ext/filters/client_channel/http_connect_handshaker.h \
+src/core/ext/filters/client_channel/http_proxy.c \
+src/core/ext/filters/client_channel/http_proxy.h \
+src/core/ext/filters/client_channel/lb_policy.c \
+src/core/ext/filters/client_channel/lb_policy.h \
+src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c \
+src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h \
+src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h \
+src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c \
+src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c \
+src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h \
+src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c \
+src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h \
+src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c \
+src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c \
+src/core/ext/filters/client_channel/lb_policy_factory.c \
+src/core/ext/filters/client_channel/lb_policy_factory.h \
+src/core/ext/filters/client_channel/lb_policy_registry.c \
+src/core/ext/filters/client_channel/lb_policy_registry.h \
+src/core/ext/filters/client_channel/parse_address.c \
+src/core/ext/filters/client_channel/parse_address.h \
+src/core/ext/filters/client_channel/proxy_mapper.c \
+src/core/ext/filters/client_channel/proxy_mapper.h \
+src/core/ext/filters/client_channel/proxy_mapper_registry.c \
+src/core/ext/filters/client_channel/proxy_mapper_registry.h \
+src/core/ext/filters/client_channel/resolver.c \
+src/core/ext/filters/client_channel/resolver.h \
+src/core/ext/filters/client_channel/resolver/README.md \
+src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c \
+src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h \
+src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c \
+src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c \
+src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h \
+src/core/ext/filters/client_channel/resolver/dns/native/README.md \
+src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c \
+src/core/ext/filters/client_channel/resolver/sockaddr/README.md \
+src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c \
+src/core/ext/filters/client_channel/resolver_factory.c \
+src/core/ext/filters/client_channel/resolver_factory.h \
+src/core/ext/filters/client_channel/resolver_registry.c \
+src/core/ext/filters/client_channel/resolver_registry.h \
+src/core/ext/filters/client_channel/retry_throttle.c \
+src/core/ext/filters/client_channel/retry_throttle.h \
+src/core/ext/filters/client_channel/subchannel.c \
+src/core/ext/filters/client_channel/subchannel.h \
+src/core/ext/filters/client_channel/subchannel_index.c \
+src/core/ext/filters/client_channel/subchannel_index.h \
+src/core/ext/filters/client_channel/uri_parser.c \
+src/core/ext/filters/client_channel/uri_parser.h \
+src/core/ext/filters/load_reporting/load_reporting.c \
+src/core/ext/filters/load_reporting/load_reporting.h \
+src/core/ext/filters/load_reporting/load_reporting_filter.c \
+src/core/ext/filters/load_reporting/load_reporting_filter.h \
+src/core/ext/filters/max_age/max_age_filter.c \
+src/core/ext/filters/max_age/max_age_filter.h \
 src/core/ext/transport/README.md \
 src/core/ext/transport/chttp2/README.md \
 src/core/ext/transport/chttp2/alpn/alpn.c \
@@ -1040,8 +1042,6 @@
 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/max_age_filter.c \
-src/core/lib/channel/max_age_filter.h \
 src/core/lib/channel/message_size_filter.c \
 src/core/lib/channel/message_size_filter.h \
 src/core/lib/compression/algorithm_metadata.h \
diff --git a/tools/run_tests/generated/sources_and_headers.json b/tools/run_tests/generated/sources_and_headers.json
index be1d876..ae5120d 100644
--- a/tools/run_tests/generated/sources_and_headers.json
+++ b/tools/run_tests/generated/sources_and_headers.json
@@ -5576,6 +5576,7 @@
       "grpc_lb_policy_pick_first", 
       "grpc_lb_policy_round_robin", 
       "grpc_load_reporting", 
+      "grpc_max_age_filter", 
       "grpc_resolver_dns_ares", 
       "grpc_resolver_dns_native", 
       "grpc_resolver_sockaddr", 
@@ -5678,6 +5679,7 @@
       "grpc_lb_policy_pick_first", 
       "grpc_lb_policy_round_robin", 
       "grpc_load_reporting", 
+      "grpc_max_age_filter", 
       "grpc_resolver_dns_ares", 
       "grpc_resolver_dns_native", 
       "grpc_resolver_sockaddr", 
@@ -5991,11 +5993,15 @@
       "src/compiler/objective_c_generator_helpers.h", 
       "src/compiler/php_generator.h", 
       "src/compiler/php_generator_helpers.h", 
+      "src/compiler/protobuf_plugin.h", 
       "src/compiler/python_generator.h", 
+      "src/compiler/python_generator_helpers.h", 
+      "src/compiler/python_private_generator.h", 
       "src/compiler/ruby_generator.h", 
       "src/compiler/ruby_generator_helpers-inl.h", 
       "src/compiler/ruby_generator_map-inl.h", 
-      "src/compiler/ruby_generator_string-inl.h"
+      "src/compiler/ruby_generator_string-inl.h", 
+      "src/compiler/schema_interface.h"
     ], 
     "is_filegroup": false, 
     "language": "c++", 
@@ -6018,13 +6024,17 @@
       "src/compiler/php_generator.cc", 
       "src/compiler/php_generator.h", 
       "src/compiler/php_generator_helpers.h", 
+      "src/compiler/protobuf_plugin.h", 
       "src/compiler/python_generator.cc", 
       "src/compiler/python_generator.h", 
+      "src/compiler/python_generator_helpers.h", 
+      "src/compiler/python_private_generator.h", 
       "src/compiler/ruby_generator.cc", 
       "src/compiler/ruby_generator.h", 
       "src/compiler/ruby_generator_helpers-inl.h", 
       "src/compiler/ruby_generator_map-inl.h", 
-      "src/compiler/ruby_generator_string-inl.h"
+      "src/compiler/ruby_generator_string-inl.h", 
+      "src/compiler/schema_interface.h"
     ], 
     "third_party": false, 
     "type": "lib"
@@ -7119,6 +7129,7 @@
       "test/core/end2end/end2end_tests.h", 
       "test/core/end2end/tests/authority_not_supported.c", 
       "test/core/end2end/tests/bad_hostname.c", 
+      "test/core/end2end/tests/bad_ping.c", 
       "test/core/end2end/tests/binary_metadata.c", 
       "test/core/end2end/tests/call_creds.c", 
       "test/core/end2end/tests/cancel_after_accept.c", 
@@ -7194,6 +7205,7 @@
       "test/core/end2end/end2end_tests.h", 
       "test/core/end2end/tests/authority_not_supported.c", 
       "test/core/end2end/tests/bad_hostname.c", 
+      "test/core/end2end/tests/bad_ping.c", 
       "test/core/end2end/tests/binary_metadata.c", 
       "test/core/end2end/tests/cancel_after_accept.c", 
       "test/core/end2end/tests/cancel_after_client_done.c", 
@@ -7514,7 +7526,6 @@
       "src/core/lib/channel/handshaker_registry.h", 
       "src/core/lib/channel/http_client_filter.h", 
       "src/core/lib/channel/http_server_filter.h", 
-      "src/core/lib/channel/max_age_filter.h", 
       "src/core/lib/channel/message_size_filter.h", 
       "src/core/lib/compression/algorithm_metadata.h", 
       "src/core/lib/compression/message_compress.h", 
@@ -7651,8 +7662,6 @@
       "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/max_age_filter.c", 
-      "src/core/lib/channel/max_age_filter.h", 
       "src/core/lib/channel/message_size_filter.c", 
       "src/core/lib/channel/message_size_filter.h", 
       "src/core/lib/compression/algorithm_metadata.h", 
@@ -7874,67 +7883,67 @@
       "grpc_base"
     ], 
     "headers": [
-      "src/core/ext/client_channel/client_channel.h", 
-      "src/core/ext/client_channel/client_channel_factory.h", 
-      "src/core/ext/client_channel/connector.h", 
-      "src/core/ext/client_channel/http_connect_handshaker.h", 
-      "src/core/ext/client_channel/http_proxy.h", 
-      "src/core/ext/client_channel/lb_policy.h", 
-      "src/core/ext/client_channel/lb_policy_factory.h", 
-      "src/core/ext/client_channel/lb_policy_registry.h", 
-      "src/core/ext/client_channel/parse_address.h", 
-      "src/core/ext/client_channel/proxy_mapper.h", 
-      "src/core/ext/client_channel/proxy_mapper_registry.h", 
-      "src/core/ext/client_channel/resolver.h", 
-      "src/core/ext/client_channel/resolver_factory.h", 
-      "src/core/ext/client_channel/resolver_registry.h", 
-      "src/core/ext/client_channel/retry_throttle.h", 
-      "src/core/ext/client_channel/subchannel.h", 
-      "src/core/ext/client_channel/subchannel_index.h", 
-      "src/core/ext/client_channel/uri_parser.h"
+      "src/core/ext/filters/client_channel/client_channel.h", 
+      "src/core/ext/filters/client_channel/client_channel_factory.h", 
+      "src/core/ext/filters/client_channel/connector.h", 
+      "src/core/ext/filters/client_channel/http_connect_handshaker.h", 
+      "src/core/ext/filters/client_channel/http_proxy.h", 
+      "src/core/ext/filters/client_channel/lb_policy.h", 
+      "src/core/ext/filters/client_channel/lb_policy_factory.h", 
+      "src/core/ext/filters/client_channel/lb_policy_registry.h", 
+      "src/core/ext/filters/client_channel/parse_address.h", 
+      "src/core/ext/filters/client_channel/proxy_mapper.h", 
+      "src/core/ext/filters/client_channel/proxy_mapper_registry.h", 
+      "src/core/ext/filters/client_channel/resolver.h", 
+      "src/core/ext/filters/client_channel/resolver_factory.h", 
+      "src/core/ext/filters/client_channel/resolver_registry.h", 
+      "src/core/ext/filters/client_channel/retry_throttle.h", 
+      "src/core/ext/filters/client_channel/subchannel.h", 
+      "src/core/ext/filters/client_channel/subchannel_index.h", 
+      "src/core/ext/filters/client_channel/uri_parser.h"
     ], 
     "is_filegroup": true, 
     "language": "c", 
     "name": "grpc_client_channel", 
     "src": [
-      "src/core/ext/client_channel/channel_connectivity.c", 
-      "src/core/ext/client_channel/client_channel.c", 
-      "src/core/ext/client_channel/client_channel.h", 
-      "src/core/ext/client_channel/client_channel_factory.c", 
-      "src/core/ext/client_channel/client_channel_factory.h", 
-      "src/core/ext/client_channel/client_channel_plugin.c", 
-      "src/core/ext/client_channel/connector.c", 
-      "src/core/ext/client_channel/connector.h", 
-      "src/core/ext/client_channel/http_connect_handshaker.c", 
-      "src/core/ext/client_channel/http_connect_handshaker.h", 
-      "src/core/ext/client_channel/http_proxy.c", 
-      "src/core/ext/client_channel/http_proxy.h", 
-      "src/core/ext/client_channel/lb_policy.c", 
-      "src/core/ext/client_channel/lb_policy.h", 
-      "src/core/ext/client_channel/lb_policy_factory.c", 
-      "src/core/ext/client_channel/lb_policy_factory.h", 
-      "src/core/ext/client_channel/lb_policy_registry.c", 
-      "src/core/ext/client_channel/lb_policy_registry.h", 
-      "src/core/ext/client_channel/parse_address.c", 
-      "src/core/ext/client_channel/parse_address.h", 
-      "src/core/ext/client_channel/proxy_mapper.c", 
-      "src/core/ext/client_channel/proxy_mapper.h", 
-      "src/core/ext/client_channel/proxy_mapper_registry.c", 
-      "src/core/ext/client_channel/proxy_mapper_registry.h", 
-      "src/core/ext/client_channel/resolver.c", 
-      "src/core/ext/client_channel/resolver.h", 
-      "src/core/ext/client_channel/resolver_factory.c", 
-      "src/core/ext/client_channel/resolver_factory.h", 
-      "src/core/ext/client_channel/resolver_registry.c", 
-      "src/core/ext/client_channel/resolver_registry.h", 
-      "src/core/ext/client_channel/retry_throttle.c", 
-      "src/core/ext/client_channel/retry_throttle.h", 
-      "src/core/ext/client_channel/subchannel.c", 
-      "src/core/ext/client_channel/subchannel.h", 
-      "src/core/ext/client_channel/subchannel_index.c", 
-      "src/core/ext/client_channel/subchannel_index.h", 
-      "src/core/ext/client_channel/uri_parser.c", 
-      "src/core/ext/client_channel/uri_parser.h"
+      "src/core/ext/filters/client_channel/channel_connectivity.c", 
+      "src/core/ext/filters/client_channel/client_channel.c", 
+      "src/core/ext/filters/client_channel/client_channel.h", 
+      "src/core/ext/filters/client_channel/client_channel_factory.c", 
+      "src/core/ext/filters/client_channel/client_channel_factory.h", 
+      "src/core/ext/filters/client_channel/client_channel_plugin.c", 
+      "src/core/ext/filters/client_channel/connector.c", 
+      "src/core/ext/filters/client_channel/connector.h", 
+      "src/core/ext/filters/client_channel/http_connect_handshaker.c", 
+      "src/core/ext/filters/client_channel/http_connect_handshaker.h", 
+      "src/core/ext/filters/client_channel/http_proxy.c", 
+      "src/core/ext/filters/client_channel/http_proxy.h", 
+      "src/core/ext/filters/client_channel/lb_policy.c", 
+      "src/core/ext/filters/client_channel/lb_policy.h", 
+      "src/core/ext/filters/client_channel/lb_policy_factory.c", 
+      "src/core/ext/filters/client_channel/lb_policy_factory.h", 
+      "src/core/ext/filters/client_channel/lb_policy_registry.c", 
+      "src/core/ext/filters/client_channel/lb_policy_registry.h", 
+      "src/core/ext/filters/client_channel/parse_address.c", 
+      "src/core/ext/filters/client_channel/parse_address.h", 
+      "src/core/ext/filters/client_channel/proxy_mapper.c", 
+      "src/core/ext/filters/client_channel/proxy_mapper.h", 
+      "src/core/ext/filters/client_channel/proxy_mapper_registry.c", 
+      "src/core/ext/filters/client_channel/proxy_mapper_registry.h", 
+      "src/core/ext/filters/client_channel/resolver.c", 
+      "src/core/ext/filters/client_channel/resolver.h", 
+      "src/core/ext/filters/client_channel/resolver_factory.c", 
+      "src/core/ext/filters/client_channel/resolver_factory.h", 
+      "src/core/ext/filters/client_channel/resolver_registry.c", 
+      "src/core/ext/filters/client_channel/resolver_registry.h", 
+      "src/core/ext/filters/client_channel/retry_throttle.c", 
+      "src/core/ext/filters/client_channel/retry_throttle.h", 
+      "src/core/ext/filters/client_channel/subchannel.c", 
+      "src/core/ext/filters/client_channel/subchannel.h", 
+      "src/core/ext/filters/client_channel/subchannel_index.c", 
+      "src/core/ext/filters/client_channel/subchannel_index.h", 
+      "src/core/ext/filters/client_channel/uri_parser.c", 
+      "src/core/ext/filters/client_channel/uri_parser.h"
     ], 
     "third_party": false, 
     "type": "filegroup"
@@ -7977,23 +7986,23 @@
       "nanopb"
     ], 
     "headers": [
-      "src/core/ext/lb_policy/grpclb/grpclb.h", 
-      "src/core/ext/lb_policy/grpclb/grpclb_channel.h", 
-      "src/core/ext/lb_policy/grpclb/load_balancer_api.h", 
-      "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h"
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h"
     ], 
     "is_filegroup": true, 
     "language": "c", 
     "name": "grpc_lb_policy_grpclb", 
     "src": [
-      "src/core/ext/lb_policy/grpclb/grpclb.c", 
-      "src/core/ext/lb_policy/grpclb/grpclb.h", 
-      "src/core/ext/lb_policy/grpclb/grpclb_channel.c", 
-      "src/core/ext/lb_policy/grpclb/grpclb_channel.h", 
-      "src/core/ext/lb_policy/grpclb/load_balancer_api.c", 
-      "src/core/ext/lb_policy/grpclb/load_balancer_api.h", 
-      "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c", 
-      "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h"
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.c", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h"
     ], 
     "third_party": false, 
     "type": "filegroup"
@@ -8007,23 +8016,23 @@
       "nanopb"
     ], 
     "headers": [
-      "src/core/ext/lb_policy/grpclb/grpclb.h", 
-      "src/core/ext/lb_policy/grpclb/grpclb_channel.h", 
-      "src/core/ext/lb_policy/grpclb/load_balancer_api.h", 
-      "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h"
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h"
     ], 
     "is_filegroup": true, 
     "language": "c", 
     "name": "grpc_lb_policy_grpclb_secure", 
     "src": [
-      "src/core/ext/lb_policy/grpclb/grpclb.c", 
-      "src/core/ext/lb_policy/grpclb/grpclb.h", 
-      "src/core/ext/lb_policy/grpclb/grpclb_channel.h", 
-      "src/core/ext/lb_policy/grpclb/grpclb_channel_secure.c", 
-      "src/core/ext/lb_policy/grpclb/load_balancer_api.c", 
-      "src/core/ext/lb_policy/grpclb/load_balancer_api.h", 
-      "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c", 
-      "src/core/ext/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h"
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.c", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb.h", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel.h", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/grpclb_channel_secure.c", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.c", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/load_balancer_api.h", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.c", 
+      "src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.h"
     ], 
     "third_party": false, 
     "type": "filegroup"
@@ -8039,7 +8048,7 @@
     "language": "c", 
     "name": "grpc_lb_policy_pick_first", 
     "src": [
-      "src/core/ext/lb_policy/pick_first/pick_first.c"
+      "src/core/ext/filters/client_channel/lb_policy/pick_first/pick_first.c"
     ], 
     "third_party": false, 
     "type": "filegroup"
@@ -8055,7 +8064,7 @@
     "language": "c", 
     "name": "grpc_lb_policy_round_robin", 
     "src": [
-      "src/core/ext/lb_policy/round_robin/round_robin.c"
+      "src/core/ext/filters/client_channel/lb_policy/round_robin/round_robin.c"
     ], 
     "third_party": false, 
     "type": "filegroup"
@@ -8066,17 +8075,35 @@
       "grpc_base"
     ], 
     "headers": [
-      "src/core/ext/load_reporting/load_reporting.h", 
-      "src/core/ext/load_reporting/load_reporting_filter.h"
+      "src/core/ext/filters/load_reporting/load_reporting.h", 
+      "src/core/ext/filters/load_reporting/load_reporting_filter.h"
     ], 
     "is_filegroup": true, 
     "language": "c", 
     "name": "grpc_load_reporting", 
     "src": [
-      "src/core/ext/load_reporting/load_reporting.c", 
-      "src/core/ext/load_reporting/load_reporting.h", 
-      "src/core/ext/load_reporting/load_reporting_filter.c", 
-      "src/core/ext/load_reporting/load_reporting_filter.h"
+      "src/core/ext/filters/load_reporting/load_reporting.c", 
+      "src/core/ext/filters/load_reporting/load_reporting.h", 
+      "src/core/ext/filters/load_reporting/load_reporting_filter.c", 
+      "src/core/ext/filters/load_reporting/load_reporting_filter.h"
+    ], 
+    "third_party": false, 
+    "type": "filegroup"
+  }, 
+  {
+    "deps": [
+      "gpr", 
+      "grpc_base"
+    ], 
+    "headers": [
+      "src/core/ext/filters/max_age/max_age_filter.h"
+    ], 
+    "is_filegroup": true, 
+    "language": "c", 
+    "name": "grpc_max_age_filter", 
+    "src": [
+      "src/core/ext/filters/max_age/max_age_filter.c", 
+      "src/core/ext/filters/max_age/max_age_filter.h"
     ], 
     "third_party": false, 
     "type": "filegroup"
@@ -8088,18 +8115,18 @@
       "grpc_client_channel"
     ], 
     "headers": [
-      "src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h", 
-      "src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h"
+      "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h", 
+      "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h"
     ], 
     "is_filegroup": true, 
     "language": "c", 
     "name": "grpc_resolver_dns_ares", 
     "src": [
-      "src/core/ext/resolver/dns/c_ares/dns_resolver_ares.c", 
-      "src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver.h", 
-      "src/core/ext/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c", 
-      "src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.c", 
-      "src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h"
+      "src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.c", 
+      "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h", 
+      "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver_posix.c", 
+      "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.c", 
+      "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h"
     ], 
     "third_party": false, 
     "type": "filegroup"
@@ -8115,7 +8142,7 @@
     "language": "c", 
     "name": "grpc_resolver_dns_native", 
     "src": [
-      "src/core/ext/resolver/dns/native/dns_resolver.c"
+      "src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.c"
     ], 
     "third_party": false, 
     "type": "filegroup"
@@ -8131,7 +8158,7 @@
     "language": "c", 
     "name": "grpc_resolver_sockaddr", 
     "src": [
-      "src/core/ext/resolver/sockaddr/sockaddr_resolver.c"
+      "src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.c"
     ], 
     "third_party": false, 
     "type": "filegroup"
diff --git a/tools/run_tests/generated/tests.json b/tools/run_tests/generated/tests.json
index b878bc1..88bac79 100644
--- a/tools/run_tests/generated/tests.json
+++ b/tools/run_tests/generated/tests.json
@@ -5727,6 +5727,29 @@
   }, 
   {
     "args": [
+      "bad_ping"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_census_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "binary_metadata"
     ], 
     "ci_platforms": [
@@ -6927,6 +6950,29 @@
   }, 
   {
     "args": [
+      "bad_ping"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_compress_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "binary_metadata"
     ], 
     "ci_platforms": [
@@ -8125,6 +8171,28 @@
   }, 
   {
     "args": [
+      "bad_ping"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_fakesec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "binary_metadata"
     ], 
     "ci_platforms": [
@@ -10333,6 +10401,29 @@
   }, 
   {
     "args": [
+      "bad_ping"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "binary_metadata"
     ], 
     "ci_platforms": [
@@ -11525,6 +11616,25 @@
   }, 
   {
     "args": [
+      "bad_ping"
+    ], 
+    "ci_platforms": [
+      "linux"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [
+      "uv"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full+pipe_test", 
+    "platforms": [
+      "linux"
+    ]
+  }, 
+  {
+    "args": [
       "binary_metadata"
     ], 
     "ci_platforms": [
@@ -12521,6 +12631,29 @@
   }, 
   {
     "args": [
+      "bad_ping"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full+trace_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "binary_metadata"
     ], 
     "ci_platforms": [
@@ -13677,6 +13810,30 @@
   }, 
   {
     "args": [
+      "bad_ping"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [
+      "uv"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_http_proxy_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "binary_metadata"
     ], 
     "ci_platforms": [
@@ -14923,6 +15080,29 @@
   }, 
   {
     "args": [
+      "bad_ping"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_load_reporting_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "binary_metadata"
     ], 
     "ci_platforms": [
@@ -16125,6 +16305,30 @@
   }, 
   {
     "args": [
+      "bad_ping"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [
+      "uv"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_oauth2_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "binary_metadata"
     ], 
     "ci_platforms": [
@@ -21709,6 +21913,29 @@
   }, 
   {
     "args": [
+      "bad_ping"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_ssl_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "binary_metadata"
     ], 
     "ci_platforms": [
@@ -22909,6 +23136,29 @@
   }, 
   {
     "args": [
+      "bad_ping"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_ssl_cert_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "binary_metadata"
     ], 
     "ci_platforms": [
@@ -25141,6 +25391,29 @@
   }, 
   {
     "args": [
+      "bad_ping"
+    ], 
+    "ci_platforms": [
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [
+      "uv"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_uds_test", 
+    "platforms": [
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "binary_metadata"
     ], 
     "ci_platforms": [
@@ -26314,6 +26587,29 @@
   }, 
   {
     "args": [
+      "bad_ping"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_census_nosec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "binary_metadata"
     ], 
     "ci_platforms": [
@@ -27491,6 +27787,29 @@
   }, 
   {
     "args": [
+      "bad_ping"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_compress_nosec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "binary_metadata"
     ], 
     "ci_platforms": [
@@ -29703,6 +30022,29 @@
   }, 
   {
     "args": [
+      "bad_ping"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full_nosec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "binary_metadata"
     ], 
     "ci_platforms": [
@@ -30872,6 +31214,25 @@
   }, 
   {
     "args": [
+      "bad_ping"
+    ], 
+    "ci_platforms": [
+      "linux"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [
+      "uv"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full+pipe_nosec_test", 
+    "platforms": [
+      "linux"
+    ]
+  }, 
+  {
+    "args": [
       "binary_metadata"
     ], 
     "ci_platforms": [
@@ -31849,6 +32210,29 @@
   }, 
   {
     "args": [
+      "bad_ping"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_full+trace_nosec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "binary_metadata"
     ], 
     "ci_platforms": [
@@ -32982,6 +33366,30 @@
   }, 
   {
     "args": [
+      "bad_ping"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [
+      "uv"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_http_proxy_nosec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "binary_metadata"
     ], 
     "ci_platforms": [
@@ -34204,6 +34612,29 @@
   }, 
   {
     "args": [
+      "bad_ping"
+    ], 
+    "ci_platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_load_reporting_nosec_test", 
+    "platforms": [
+      "windows", 
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "binary_metadata"
     ], 
     "ci_platforms": [
@@ -39621,6 +40052,29 @@
   }, 
   {
     "args": [
+      "bad_ping"
+    ], 
+    "ci_platforms": [
+      "linux", 
+      "mac", 
+      "posix"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "exclude_iomgrs": [
+      "uv"
+    ], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "h2_uds_nosec_test", 
+    "platforms": [
+      "linux", 
+      "mac", 
+      "posix"
+    ]
+  }, 
+  {
+    "args": [
       "binary_metadata"
     ], 
     "ci_platforms": [
diff --git a/tools/run_tests/helper_scripts/build_node.sh b/tools/run_tests/helper_scripts/build_node.sh
index df3acda..2c4cf02 100755
--- a/tools/run_tests/helper_scripts/build_node.sh
+++ b/tools/run_tests/helper_scripts/build_node.sh
@@ -41,7 +41,8 @@
 cd $(dirname $0)/../../..
 
 case "$CONFIG" in
-  'dbg') config_flag='--debug' ;;
+  'dbg') config_flags='--debug' ;;
+  'gcov') config_flags="--debug --grpc_gcov=true" ;;
   *) config_flag='--release' ;;
 esac
 
diff --git a/tools/run_tests/performance/build_performance.sh b/tools/run_tests/performance/build_performance.sh
index 5f8749d..3f7c9fe 100755
--- a/tools/run_tests/performance/build_performance.sh
+++ b/tools/run_tests/performance/build_performance.sh
@@ -61,6 +61,9 @@
   "csharp")
     python tools/run_tests/run_tests.py -l $language -c $CONFIG --build_only -j 8 --compiler coreclr
     ;;
+  "node")
+    python tools/run_tests/run_tests.py -l $language -c $CONFIG --build_only -j 8 --iomgr_platform=uv
+    ;;
   *)
     python tools/run_tests/run_tests.py -l $language -c $CONFIG --build_only -j 8
     ;;
diff --git a/vsprojects/vcxproj/grpc++/grpc++.vcxproj b/vsprojects/vcxproj/grpc++/grpc++.vcxproj
index a2b3e56..caa22a0 100644
--- a/vsprojects/vcxproj/grpc++/grpc++.vcxproj
+++ b/vsprojects/vcxproj/grpc++/grpc++.vcxproj
@@ -389,7 +389,6 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\handshaker_registry.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\http_client_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\compression\algorithm_metadata.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\compression\message_compress.h" />
@@ -598,8 +597,6 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.c">
-    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\compression\compression.c">
diff --git a/vsprojects/vcxproj/grpc++/grpc++.vcxproj.filters b/vsprojects/vcxproj/grpc++/grpc++.vcxproj.filters
index 57d4db2..6fc1c96 100644
--- a/vsprojects/vcxproj/grpc++/grpc++.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc++/grpc++.vcxproj.filters
@@ -157,9 +157,6 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.c">
       <Filter>src\core\lib\channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.c">
-      <Filter>src\core\lib\channel</Filter>
-    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.c">
       <Filter>src\core\lib\channel</Filter>
     </ClCompile>
@@ -902,9 +899,6 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.h">
       <Filter>src\core\lib\channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.h">
-      <Filter>src\core\lib\channel</Filter>
-    </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.h">
       <Filter>src\core\lib\channel</Filter>
     </ClInclude>
diff --git a/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj b/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj
index f0774aa..6748181 100644
--- a/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj
+++ b/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj
@@ -383,7 +383,6 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\handshaker_registry.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\http_client_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\compression\algorithm_metadata.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\compression\message_compress.h" />
@@ -582,8 +581,6 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.c">
-    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\compression\compression.c">
diff --git a/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj.filters b/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj.filters
index 2dd3d89..2b9a5b1 100644
--- a/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc++_unsecure/grpc++_unsecure.vcxproj.filters
@@ -142,9 +142,6 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.c">
       <Filter>src\core\lib\channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.c">
-      <Filter>src\core\lib\channel</Filter>
-    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.c">
       <Filter>src\core\lib\channel</Filter>
     </ClCompile>
@@ -869,9 +866,6 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.h">
       <Filter>src\core\lib\channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.h">
-      <Filter>src\core\lib\channel</Filter>
-    </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.h">
       <Filter>src\core\lib\channel</Filter>
     </ClInclude>
diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj b/vsprojects/vcxproj/grpc/grpc.vcxproj
index ada8f1a..948af2f 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj
@@ -312,7 +312,6 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\handshaker_registry.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\http_client_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\compression\algorithm_metadata.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\compression\message_compress.h" />
@@ -455,37 +454,37 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\tsi\transport_security.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\tsi\transport_security_interface.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\server\chttp2_server.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel_factory.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\connector.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\http_connect_handshaker.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\http_proxy.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy_factory.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy_registry.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\parse_address.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\proxy_mapper.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\proxy_mapper_registry.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver_factory.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver_registry.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\retry_throttle.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\subchannel.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\subchannel_index.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\uri_parser.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel_factory.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\connector.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\http_connect_handshaker.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\http_proxy.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy_factory.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy_registry.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\parse_address.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\proxy_mapper.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\proxy_mapper_registry.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver_factory.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver_registry.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\retry_throttle.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\subchannel.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\subchannel_index.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\uri_parser.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\client\chttp2_connector.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\grpclb.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\grpclb_channel.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\load_balancer_api.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\proto\grpc\lb\v1\load_balancer.pb.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\grpclb.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\grpclb_channel.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\load_balancer_api.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\proto\grpc\lb\v1\load_balancer.pb.h" />
     <ClInclude Include="$(SolutionDir)\..\third_party\nanopb\pb.h" />
     <ClInclude Include="$(SolutionDir)\..\third_party\nanopb\pb_common.h" />
     <ClInclude Include="$(SolutionDir)\..\third_party\nanopb\pb_decode.h" />
     <ClInclude Include="$(SolutionDir)\..\third_party\nanopb\pb_encode.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_ev_driver.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_wrapper.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\load_reporting\load_reporting.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\load_reporting\load_reporting_filter.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_ev_driver.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_wrapper.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\load_reporting\load_reporting.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\load_reporting\load_reporting_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\census\aggregation.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\census\base_resources.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\census\census_interface.h" />
@@ -502,6 +501,7 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\census\trace_status.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\census\trace_string.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\census\tracing.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\max_age\max_age_filter.h" />
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\init.c">
@@ -528,8 +528,6 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.c">
-    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\compression\compression.c">
@@ -858,45 +856,45 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\client\secure\secure_channel_create.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\channel_connectivity.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\channel_connectivity.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel_factory.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel_factory.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel_plugin.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel_plugin.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\connector.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\connector.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\http_connect_handshaker.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\http_connect_handshaker.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\http_proxy.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\http_proxy.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy_factory.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy_factory.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy_registry.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy_registry.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\parse_address.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\parse_address.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\proxy_mapper.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\proxy_mapper.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\proxy_mapper_registry.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\proxy_mapper_registry.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver_factory.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver_factory.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver_registry.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver_registry.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\retry_throttle.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\retry_throttle.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\subchannel.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\subchannel.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\subchannel_index.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\subchannel_index.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\uri_parser.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\uri_parser.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\client\chttp2_connector.c">
     </ClCompile>
@@ -908,13 +906,13 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\client\insecure\channel_create_posix.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\grpclb.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\grpclb.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\grpclb_channel_secure.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\grpclb_channel_secure.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\load_balancer_api.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\load_balancer_api.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\proto\grpc\lb\v1\load_balancer.pb.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\proto\grpc\lb\v1\load_balancer.pb.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\third_party\nanopb\pb_common.c">
     </ClCompile>
@@ -922,23 +920,23 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\third_party\nanopb\pb_encode.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\pick_first\pick_first.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\pick_first\pick_first.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\round_robin\round_robin.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\round_robin\round_robin.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\dns_resolver_ares.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\dns_resolver_ares.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_ev_driver_posix.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_ev_driver_posix.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_wrapper.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_wrapper.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\native\dns_resolver.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\native\dns_resolver.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\sockaddr\sockaddr_resolver.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\sockaddr\sockaddr_resolver.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\load_reporting\load_reporting.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\load_reporting\load_reporting.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\load_reporting\load_reporting_filter.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\load_reporting\load_reporting_filter.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\census\base_resources.c">
     </ClCompile>
@@ -968,6 +966,8 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\census\tracing.c">
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\max_age\max_age_filter.c">
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\plugin_registry\grpc_plugin_registry.c">
     </ClCompile>
   </ItemGroup>
diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
index 0246845..d43b0e3 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
@@ -37,9 +37,6 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.c">
       <Filter>src\core\lib\channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.c">
-      <Filter>src\core\lib\channel</Filter>
-    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.c">
       <Filter>src\core\lib\channel</Filter>
     </ClCompile>
@@ -532,65 +529,65 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\client\secure\secure_channel_create.c">
       <Filter>src\core\ext\transport\chttp2\client\secure</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\channel_connectivity.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\channel_connectivity.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel_factory.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel_factory.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel_plugin.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel_plugin.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\connector.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\connector.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\http_connect_handshaker.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\http_connect_handshaker.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\http_proxy.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\http_proxy.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy_factory.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy_factory.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy_registry.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy_registry.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\parse_address.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\parse_address.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\proxy_mapper.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\proxy_mapper.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\proxy_mapper_registry.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\proxy_mapper_registry.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver_factory.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver_factory.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver_registry.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver_registry.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\retry_throttle.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\retry_throttle.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\subchannel.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\subchannel.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\subchannel_index.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\subchannel_index.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\uri_parser.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\uri_parser.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\client\chttp2_connector.c">
       <Filter>src\core\ext\transport\chttp2\client</Filter>
@@ -607,17 +604,17 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\client\insecure\channel_create_posix.c">
       <Filter>src\core\ext\transport\chttp2\client\insecure</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\grpclb.c">
-      <Filter>src\core\ext\lb_policy\grpclb</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\grpclb.c">
+      <Filter>src\core\ext\filters\client_channel\lb_policy\grpclb</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\grpclb_channel_secure.c">
-      <Filter>src\core\ext\lb_policy\grpclb</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\grpclb_channel_secure.c">
+      <Filter>src\core\ext\filters\client_channel\lb_policy\grpclb</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\load_balancer_api.c">
-      <Filter>src\core\ext\lb_policy\grpclb</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\load_balancer_api.c">
+      <Filter>src\core\ext\filters\client_channel\lb_policy\grpclb</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\proto\grpc\lb\v1\load_balancer.pb.c">
-      <Filter>src\core\ext\lb_policy\grpclb\proto\grpc\lb\v1</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\proto\grpc\lb\v1\load_balancer.pb.c">
+      <Filter>src\core\ext\filters\client_channel\lb_policy\grpclb\proto\grpc\lb\v1</Filter>
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\third_party\nanopb\pb_common.c">
       <Filter>third_party\nanopb</Filter>
@@ -628,32 +625,32 @@
     <ClCompile Include="$(SolutionDir)\..\third_party\nanopb\pb_encode.c">
       <Filter>third_party\nanopb</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\pick_first\pick_first.c">
-      <Filter>src\core\ext\lb_policy\pick_first</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\pick_first\pick_first.c">
+      <Filter>src\core\ext\filters\client_channel\lb_policy\pick_first</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\round_robin\round_robin.c">
-      <Filter>src\core\ext\lb_policy\round_robin</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\round_robin\round_robin.c">
+      <Filter>src\core\ext\filters\client_channel\lb_policy\round_robin</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\dns_resolver_ares.c">
-      <Filter>src\core\ext\resolver\dns\c_ares</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\dns_resolver_ares.c">
+      <Filter>src\core\ext\filters\client_channel\resolver\dns\c_ares</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_ev_driver_posix.c">
-      <Filter>src\core\ext\resolver\dns\c_ares</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_ev_driver_posix.c">
+      <Filter>src\core\ext\filters\client_channel\resolver\dns\c_ares</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_wrapper.c">
-      <Filter>src\core\ext\resolver\dns\c_ares</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_wrapper.c">
+      <Filter>src\core\ext\filters\client_channel\resolver\dns\c_ares</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\native\dns_resolver.c">
-      <Filter>src\core\ext\resolver\dns\native</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\native\dns_resolver.c">
+      <Filter>src\core\ext\filters\client_channel\resolver\dns\native</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\sockaddr\sockaddr_resolver.c">
-      <Filter>src\core\ext\resolver\sockaddr</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\sockaddr\sockaddr_resolver.c">
+      <Filter>src\core\ext\filters\client_channel\resolver\sockaddr</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\load_reporting\load_reporting.c">
-      <Filter>src\core\ext\load_reporting</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\load_reporting\load_reporting.c">
+      <Filter>src\core\ext\filters\load_reporting</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\load_reporting\load_reporting_filter.c">
-      <Filter>src\core\ext\load_reporting</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\load_reporting\load_reporting_filter.c">
+      <Filter>src\core\ext\filters\load_reporting</Filter>
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\census\base_resources.c">
       <Filter>src\core\ext\census</Filter>
@@ -697,6 +694,9 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\census\tracing.c">
       <Filter>src\core\ext\census</Filter>
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\max_age\max_age_filter.c">
+      <Filter>src\core\ext\filters\max_age</Filter>
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\plugin_registry\grpc_plugin_registry.c">
       <Filter>src\core\plugin_registry</Filter>
     </ClCompile>
@@ -833,9 +833,6 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.h">
       <Filter>src\core\lib\channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.h">
-      <Filter>src\core\lib\channel</Filter>
-    </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.h">
       <Filter>src\core\lib\channel</Filter>
     </ClInclude>
@@ -1262,74 +1259,74 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\server\chttp2_server.h">
       <Filter>src\core\ext\transport\chttp2\server</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel_factory.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel_factory.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\connector.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\connector.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\http_connect_handshaker.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\http_connect_handshaker.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\http_proxy.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\http_proxy.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy_factory.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy_factory.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy_registry.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy_registry.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\parse_address.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\parse_address.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\proxy_mapper.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\proxy_mapper.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\proxy_mapper_registry.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\proxy_mapper_registry.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver_factory.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver_factory.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver_registry.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver_registry.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\retry_throttle.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\retry_throttle.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\subchannel.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\subchannel.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\subchannel_index.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\subchannel_index.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\uri_parser.h">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\uri_parser.h">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\client\chttp2_connector.h">
       <Filter>src\core\ext\transport\chttp2\client</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\grpclb.h">
-      <Filter>src\core\ext\lb_policy\grpclb</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\grpclb.h">
+      <Filter>src\core\ext\filters\client_channel\lb_policy\grpclb</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\grpclb_channel.h">
-      <Filter>src\core\ext\lb_policy\grpclb</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\grpclb_channel.h">
+      <Filter>src\core\ext\filters\client_channel\lb_policy\grpclb</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\load_balancer_api.h">
-      <Filter>src\core\ext\lb_policy\grpclb</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\load_balancer_api.h">
+      <Filter>src\core\ext\filters\client_channel\lb_policy\grpclb</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\proto\grpc\lb\v1\load_balancer.pb.h">
-      <Filter>src\core\ext\lb_policy\grpclb\proto\grpc\lb\v1</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\proto\grpc\lb\v1\load_balancer.pb.h">
+      <Filter>src\core\ext\filters\client_channel\lb_policy\grpclb\proto\grpc\lb\v1</Filter>
     </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\third_party\nanopb\pb.h">
       <Filter>third_party\nanopb</Filter>
@@ -1343,17 +1340,17 @@
     <ClInclude Include="$(SolutionDir)\..\third_party\nanopb\pb_encode.h">
       <Filter>third_party\nanopb</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_ev_driver.h">
-      <Filter>src\core\ext\resolver\dns\c_ares</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_ev_driver.h">
+      <Filter>src\core\ext\filters\client_channel\resolver\dns\c_ares</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_wrapper.h">
-      <Filter>src\core\ext\resolver\dns\c_ares</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_wrapper.h">
+      <Filter>src\core\ext\filters\client_channel\resolver\dns\c_ares</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\load_reporting\load_reporting.h">
-      <Filter>src\core\ext\load_reporting</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\load_reporting\load_reporting.h">
+      <Filter>src\core\ext\filters\load_reporting</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\load_reporting\load_reporting_filter.h">
-      <Filter>src\core\ext\load_reporting</Filter>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\load_reporting\load_reporting_filter.h">
+      <Filter>src\core\ext\filters\load_reporting</Filter>
     </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\census\aggregation.h">
       <Filter>src\core\ext\census</Filter>
@@ -1403,6 +1400,9 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\census\tracing.h">
       <Filter>src\core\ext\census</Filter>
     </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\max_age\max_age_filter.h">
+      <Filter>src\core\ext\filters\max_age</Filter>
+    </ClInclude>
   </ItemGroup>
 
   <ItemGroup>
@@ -1433,50 +1433,56 @@
     <Filter Include="src\core\ext\census\gen">
       <UniqueIdentifier>{4a14dd37-5868-c656-7333-fa80574cbb07}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\client_channel">
-      <UniqueIdentifier>{36eee53a-cd19-738a-c387-20c44a2bfd07}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters">
+      <UniqueIdentifier>{a7cd279d-e0ec-32d3-4cbe-778aba4a0000}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\lb_policy">
-      <UniqueIdentifier>{030f00ff-6c54-76c8-12df-37e3008335d1}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel">
+      <UniqueIdentifier>{d38c43fd-50e4-fba5-59c5-0d4817159aad}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\lb_policy\grpclb">
-      <UniqueIdentifier>{fe41339e-53fb-39b3-7457-7a0fbb238dbe}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\lb_policy">
+      <UniqueIdentifier>{784368be-88aa-3170-1479-48fdf8fbc7be}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\lb_policy\grpclb\proto">
-      <UniqueIdentifier>{a7c27f6b-6d15-01cf-76d9-c30dddea0990}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\lb_policy\grpclb">
+      <UniqueIdentifier>{82e39ac8-1993-6894-efed-651068234a28}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\lb_policy\grpclb\proto\grpc">
-      <UniqueIdentifier>{bc714e6d-8aba-91df-7db9-7f189f05a6ff}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\lb_policy\grpclb\proto">
+      <UniqueIdentifier>{ff02fee6-7304-df5f-76a6-008b5a1c7d19}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\lb_policy\grpclb\proto\grpc\lb">
-      <UniqueIdentifier>{adf7e553-94ef-14fd-e845-03104f00a06f}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\lb_policy\grpclb\proto\grpc">
+      <UniqueIdentifier>{953a74cb-cafd-eedd-8d34-038c28daf188}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\lb_policy\grpclb\proto\grpc\lb\v1">
-      <UniqueIdentifier>{bc357e2d-8ddd-a688-88a3-255228fc0818}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\lb_policy\grpclb\proto\grpc\lb">
+      <UniqueIdentifier>{595a1701-eb5a-e8af-ffa3-f67c0e380894}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\lb_policy\pick_first">
-      <UniqueIdentifier>{b63ded00-b24f-708e-333f-ce199e421875}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\lb_policy\grpclb\proto\grpc\lb\v1">
+      <UniqueIdentifier>{af8e2597-93ef-1381-d773-082a85e7eaf1}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\lb_policy\round_robin">
-      <UniqueIdentifier>{2472d352-cf94-f317-646e-72b769cea846}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\lb_policy\pick_first">
+      <UniqueIdentifier>{9a3e8049-bc04-8341-5173-6fe5f8a4465c}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\load_reporting">
-      <UniqueIdentifier>{b6c863cd-a135-32e8-df03-02365f526f0d}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\lb_policy\round_robin">
+      <UniqueIdentifier>{6d3d5842-8257-9c58-7985-75f4d98b7d5c}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\resolver">
-      <UniqueIdentifier>{6bfa6808-9dcb-8990-deed-5cf58a149dda}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\resolver">
+      <UniqueIdentifier>{c9873fec-2f83-0497-6d0a-bd9c1cc63be3}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\resolver\dns">
-      <UniqueIdentifier>{e8fe6413-ab8c-48d5-2c7b-aa79e3db4ab2}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\resolver\dns">
+      <UniqueIdentifier>{91b79502-da45-f80b-933e-c974b089db5c}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\resolver\dns\c_ares">
-      <UniqueIdentifier>{2b72688f-79b8-05dd-2896-c7d5dec07dd6}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\resolver\dns\c_ares">
+      <UniqueIdentifier>{73d42c09-d1b5-2e4e-ef12-d74d8ee33ac2}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\resolver\dns\native">
-      <UniqueIdentifier>{94e34be0-29d2-1731-3c1e-617ec4986acb}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\resolver\dns\native">
+      <UniqueIdentifier>{9b2d7e1f-b78a-2e7a-3000-944e46a5fab9}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\ext\resolver\sockaddr">
-      <UniqueIdentifier>{98c1ccc2-2c91-a3d2-6040-a2e15993d51a}</UniqueIdentifier>
+    <Filter Include="src\core\ext\filters\client_channel\resolver\sockaddr">
+      <UniqueIdentifier>{bd317dd5-323e-5b27-4c05-d85786be36ab}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="src\core\ext\filters\load_reporting">
+      <UniqueIdentifier>{12559ba7-9445-92ae-0c5a-2d79570d4c9b}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="src\core\ext\filters\max_age">
+      <UniqueIdentifier>{5369e83c-4625-fc14-cc40-9db5da3a7af4}</UniqueIdentifier>
     </Filter>
     <Filter Include="src\core\ext\transport">
       <UniqueIdentifier>{e3abfd0a-064e-0f2f-c8e8-7c5a7e98142a}</UniqueIdentifier>
diff --git a/vsprojects/vcxproj/grpc_plugin_support/grpc_plugin_support.vcxproj b/vsprojects/vcxproj/grpc_plugin_support/grpc_plugin_support.vcxproj
index 05165d6..a3d5b26 100644
--- a/vsprojects/vcxproj/grpc_plugin_support/grpc_plugin_support.vcxproj
+++ b/vsprojects/vcxproj/grpc_plugin_support/grpc_plugin_support.vcxproj
@@ -163,11 +163,15 @@
     <ClInclude Include="$(SolutionDir)\..\src\compiler\objective_c_generator_helpers.h" />
     <ClInclude Include="$(SolutionDir)\..\src\compiler\php_generator.h" />
     <ClInclude Include="$(SolutionDir)\..\src\compiler\php_generator_helpers.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\compiler\protobuf_plugin.h" />
     <ClInclude Include="$(SolutionDir)\..\src\compiler\python_generator.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\compiler\python_generator_helpers.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\compiler\python_private_generator.h" />
     <ClInclude Include="$(SolutionDir)\..\src\compiler\ruby_generator.h" />
     <ClInclude Include="$(SolutionDir)\..\src\compiler\ruby_generator_helpers-inl.h" />
     <ClInclude Include="$(SolutionDir)\..\src\compiler\ruby_generator_map-inl.h" />
     <ClInclude Include="$(SolutionDir)\..\src\compiler\ruby_generator_string-inl.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\compiler\schema_interface.h" />
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="$(SolutionDir)\..\src\compiler\cpp_generator.cc">
diff --git a/vsprojects/vcxproj/grpc_plugin_support/grpc_plugin_support.vcxproj.filters b/vsprojects/vcxproj/grpc_plugin_support/grpc_plugin_support.vcxproj.filters
index c8b8932..8fa3a0f 100644
--- a/vsprojects/vcxproj/grpc_plugin_support/grpc_plugin_support.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc_plugin_support/grpc_plugin_support.vcxproj.filters
@@ -65,9 +65,18 @@
     <ClInclude Include="$(SolutionDir)\..\src\compiler\php_generator_helpers.h">
       <Filter>src\compiler</Filter>
     </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\src\compiler\protobuf_plugin.h">
+      <Filter>src\compiler</Filter>
+    </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\src\compiler\python_generator.h">
       <Filter>src\compiler</Filter>
     </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\src\compiler\python_generator_helpers.h">
+      <Filter>src\compiler</Filter>
+    </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\src\compiler\python_private_generator.h">
+      <Filter>src\compiler</Filter>
+    </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\src\compiler\ruby_generator.h">
       <Filter>src\compiler</Filter>
     </ClInclude>
@@ -80,6 +89,9 @@
     <ClInclude Include="$(SolutionDir)\..\src\compiler\ruby_generator_string-inl.h">
       <Filter>src\compiler</Filter>
     </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\src\compiler\schema_interface.h">
+      <Filter>src\compiler</Filter>
+    </ClInclude>
   </ItemGroup>
 
   <ItemGroup>
diff --git a/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj b/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj
index bc018dc..c675cda 100644
--- a/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj
+++ b/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj
@@ -207,7 +207,6 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\handshaker_registry.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\http_client_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\compression\algorithm_metadata.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\compression\message_compress.h" />
@@ -370,8 +369,6 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.c">
-    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\compression\compression.c">
diff --git a/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj.filters b/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj.filters
index 6a02b15..c6bd2d6 100644
--- a/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc_test_util/grpc_test_util.vcxproj.filters
@@ -94,9 +94,6 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.c">
       <Filter>src\core\lib\channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.c">
-      <Filter>src\core\lib\channel</Filter>
-    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.c">
       <Filter>src\core\lib\channel</Filter>
     </ClCompile>
@@ -614,9 +611,6 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.h">
       <Filter>src\core\lib\channel</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.h">
-      <Filter>src\core\lib\channel</Filter>
-    </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.h">
       <Filter>src\core\lib\channel</Filter>
     </ClInclude>
diff --git a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
index 83e7658..8799359 100644
--- a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
+++ b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
@@ -302,7 +302,6 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\handshaker_registry.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\http_client_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\compression\algorithm_metadata.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\lib\compression\message_compress.h" />
@@ -422,32 +421,32 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\alpn\alpn.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\server\chttp2_server.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\client\chttp2_connector.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel_factory.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\connector.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\http_connect_handshaker.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\http_proxy.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy_factory.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy_registry.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\parse_address.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\proxy_mapper.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\proxy_mapper_registry.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver_factory.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver_registry.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\retry_throttle.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\subchannel.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\subchannel_index.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_channel\uri_parser.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_ev_driver.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_wrapper.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\load_reporting\load_reporting.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\load_reporting\load_reporting_filter.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\grpclb.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\grpclb_channel.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\load_balancer_api.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\proto\grpc\lb\v1\load_balancer.pb.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel_factory.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\connector.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\http_connect_handshaker.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\http_proxy.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy_factory.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy_registry.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\parse_address.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\proxy_mapper.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\proxy_mapper_registry.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver_factory.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver_registry.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\retry_throttle.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\subchannel.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\subchannel_index.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\uri_parser.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_ev_driver.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_wrapper.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\load_reporting\load_reporting.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\load_reporting\load_reporting_filter.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\grpclb.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\grpclb_channel.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\load_balancer_api.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\proto\grpc\lb\v1\load_balancer.pb.h" />
     <ClInclude Include="$(SolutionDir)\..\third_party\nanopb\pb.h" />
     <ClInclude Include="$(SolutionDir)\..\third_party\nanopb\pb_common.h" />
     <ClInclude Include="$(SolutionDir)\..\third_party\nanopb\pb_decode.h" />
@@ -468,6 +467,7 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\census\trace_status.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\census\trace_string.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\census\tracing.h" />
+    <ClInclude Include="$(SolutionDir)\..\src\core\ext\filters\max_age\max_age_filter.h" />
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\surface\init.c">
@@ -496,8 +496,6 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.c">
-    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\compression\compression.c">
@@ -778,67 +776,67 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\client\chttp2_connector.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\channel_connectivity.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\channel_connectivity.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel_factory.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel_factory.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel_plugin.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel_plugin.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\connector.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\connector.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\http_connect_handshaker.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\http_connect_handshaker.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\http_proxy.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\http_proxy.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy_factory.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy_factory.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy_registry.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy_registry.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\parse_address.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\parse_address.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\proxy_mapper.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\proxy_mapper.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\proxy_mapper_registry.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\proxy_mapper_registry.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver_factory.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver_factory.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver_registry.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver_registry.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\retry_throttle.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\retry_throttle.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\subchannel.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\subchannel.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\subchannel_index.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\subchannel_index.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\uri_parser.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\uri_parser.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\dns_resolver_ares.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\dns_resolver_ares.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_ev_driver_posix.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_ev_driver_posix.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\c_ares\grpc_ares_wrapper.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\grpc_ares_wrapper.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\dns\native\dns_resolver.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\native\dns_resolver.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\resolver\sockaddr\sockaddr_resolver.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\sockaddr\sockaddr_resolver.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\load_reporting\load_reporting.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\load_reporting\load_reporting.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\load_reporting\load_reporting_filter.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\load_reporting\load_reporting_filter.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\grpclb.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\grpclb.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\grpclb_channel.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\grpclb_channel.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\load_balancer_api.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\load_balancer_api.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\proto\grpc\lb\v1\load_balancer.pb.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\proto\grpc\lb\v1\load_balancer.pb.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\third_party\nanopb\pb_common.c">
     </ClCompile>
@@ -846,9 +844,9 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\third_party\nanopb\pb_encode.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\pick_first\pick_first.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\pick_first\pick_first.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\round_robin\round_robin.c">
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\round_robin\round_robin.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\census\base_resources.c">
     </ClCompile>
@@ -878,6 +876,8 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\census\tracing.c">
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\max_age\max_age_filter.c">
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\plugin_registry\grpc_unsecure_plugin_registry.c">
     </ClCompile>
   </ItemGroup>
diff --git a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
index 5e2b7c2..cf2def4 100644
--- a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
@@ -40,9 +40,6 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\http_server_filter.c">
       <Filter>src\core\lib\channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\max_age_filter.c">
-      <Filter>src\core\lib\channel</Filter>
-    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\lib\channel\message_size_filter.c">
       <Filter>src\core\lib\channel</Filter>
     </ClCompile>
@@ -463,98 +460,98 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\client\chttp2_connector.c">
       <Filter>src\core\ext\transport\chttp2\client</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\channel_connectivity.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\channel_connectivity.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel_factory.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel_factory.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\client_channel_plugin.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\client_channel_plugin.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\connector.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\connector.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\http_connect_handshaker.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\http_connect_handshaker.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\http_proxy.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\http_proxy.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy_factory.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy_factory.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\lb_policy_registry.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy_registry.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\parse_address.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\parse_address.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\proxy_mapper.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\proxy_mapper.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\proxy_mapper_registry.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\proxy_mapper_registry.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver_factory.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver_factory.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\client_channel\resolver_registry.c">
-      <Filter>src\core\ext\client_channel</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver_registry.c">
+      <Filter>src\core\ext\filters\client_channel</Filter>
     </ClCompile>
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-      <Filter>src\core\ext\client_channel</Filter>
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-      <Filter>src\core\ext\client_channel</Filter>
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-      <Filter>src\core\ext\resolver\dns\c_ares</Filter>
+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\resolver\dns\c_ares\dns_resolver_ares.c">
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-      <Filter>src\core\ext\resolver\sockaddr</Filter>
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-      <Filter>src\core\ext\load_reporting</Filter>
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+    <ClCompile Include="$(SolutionDir)\..\src\core\ext\filters\client_channel\lb_policy\grpclb\load_balancer_api.c">
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     <Filter Include="src\core\ext\transport">
       <UniqueIdentifier>{967c89fe-c97c-27e2-aac0-9ba5854cb5fa}</UniqueIdentifier>
diff --git a/vsprojects/vcxproj/test/end2end/tests/end2end_nosec_tests/end2end_nosec_tests.vcxproj b/vsprojects/vcxproj/test/end2end/tests/end2end_nosec_tests/end2end_nosec_tests.vcxproj
index 5a2d6ac..e3adf79 100644
--- a/vsprojects/vcxproj/test/end2end/tests/end2end_nosec_tests/end2end_nosec_tests.vcxproj
+++ b/vsprojects/vcxproj/test/end2end/tests/end2end_nosec_tests/end2end_nosec_tests.vcxproj
@@ -159,6 +159,8 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\test\core\end2end\tests\bad_hostname.c">
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\test\core\end2end\tests\bad_ping.c">
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\test\core\end2end\tests\binary_metadata.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\test\core\end2end\tests\cancel_after_accept.c">
diff --git a/vsprojects/vcxproj/test/end2end/tests/end2end_nosec_tests/end2end_nosec_tests.vcxproj.filters b/vsprojects/vcxproj/test/end2end/tests/end2end_nosec_tests/end2end_nosec_tests.vcxproj.filters
index 3a870b9..cfb8d04 100644
--- a/vsprojects/vcxproj/test/end2end/tests/end2end_nosec_tests/end2end_nosec_tests.vcxproj.filters
+++ b/vsprojects/vcxproj/test/end2end/tests/end2end_nosec_tests/end2end_nosec_tests.vcxproj.filters
@@ -13,6 +13,9 @@
     <ClCompile Include="$(SolutionDir)\..\test\core\end2end\tests\bad_hostname.c">
       <Filter>test\core\end2end\tests</Filter>
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\test\core\end2end\tests\bad_ping.c">
+      <Filter>test\core\end2end\tests</Filter>
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\test\core\end2end\tests\binary_metadata.c">
       <Filter>test\core\end2end\tests</Filter>
     </ClCompile>
diff --git a/vsprojects/vcxproj/test/end2end/tests/end2end_tests/end2end_tests.vcxproj b/vsprojects/vcxproj/test/end2end/tests/end2end_tests/end2end_tests.vcxproj
index 4b001a7..a67f509 100644
--- a/vsprojects/vcxproj/test/end2end/tests/end2end_tests/end2end_tests.vcxproj
+++ b/vsprojects/vcxproj/test/end2end/tests/end2end_tests/end2end_tests.vcxproj
@@ -159,6 +159,8 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\test\core\end2end\tests\bad_hostname.c">
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\test\core\end2end\tests\bad_ping.c">
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\test\core\end2end\tests\binary_metadata.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\test\core\end2end\tests\call_creds.c">
diff --git a/vsprojects/vcxproj/test/end2end/tests/end2end_tests/end2end_tests.vcxproj.filters b/vsprojects/vcxproj/test/end2end/tests/end2end_tests/end2end_tests.vcxproj.filters
index 2eace64..97ba77a 100644
--- a/vsprojects/vcxproj/test/end2end/tests/end2end_tests/end2end_tests.vcxproj.filters
+++ b/vsprojects/vcxproj/test/end2end/tests/end2end_tests/end2end_tests.vcxproj.filters
@@ -13,6 +13,9 @@
     <ClCompile Include="$(SolutionDir)\..\test\core\end2end\tests\bad_hostname.c">
       <Filter>test\core\end2end\tests</Filter>
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\test\core\end2end\tests\bad_ping.c">
+      <Filter>test\core\end2end\tests</Filter>
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\test\core\end2end\tests\binary_metadata.c">
       <Filter>test\core\end2end\tests</Filter>
     </ClCompile>