Moving message_size_filter properly.
diff --git a/BUILD b/BUILD
index e7bfafe..2e040bb 100644
--- a/BUILD
+++ b/BUILD
@@ -659,6 +659,7 @@
         "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/message_size_filter.c",
         "src/core/ext/client_channel/parse_address.c",
         "src/core/ext/client_channel/resolver.c",
         "src/core/ext/client_channel/resolver_factory.c",
@@ -676,6 +677,7 @@
         "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/message_size_filter.h",
         "src/core/ext/client_channel/parse_address.h",
         "src/core/ext/client_channel/resolver.h",
         "src/core/ext/client_channel/resolver_factory.h",