Introduced a registry for LB policies.
diff --git a/gRPC.podspec b/gRPC.podspec
index d0e1e2d..aaa6abb 100644
--- a/gRPC.podspec
+++ b/gRPC.podspec
@@ -160,6 +160,8 @@
                       'src/core/client_config/connector.h',
                       'src/core/client_config/lb_policies/pick_first.h',
                       'src/core/client_config/lb_policy.h',
+                      'src/core/client_config/lb_policy_factory.h',
+                      'src/core/client_config/lb_policy_registry.h',
                       'src/core/client_config/resolver.h',
                       'src/core/client_config/resolver_factory.h',
                       'src/core/client_config/resolver_registry.h',
@@ -292,6 +294,8 @@
                       'src/core/client_config/connector.c',
                       'src/core/client_config/lb_policies/pick_first.c',
                       'src/core/client_config/lb_policy.c',
+                      'src/core/client_config/lb_policy_factory.c',
+                      'src/core/client_config/lb_policy_registry.c',
                       'src/core/client_config/resolver.c',
                       'src/core/client_config/resolver_factory.c',
                       'src/core/client_config/resolver_registry.c',
@@ -434,6 +438,8 @@
                               'src/core/client_config/connector.h',
                               'src/core/client_config/lb_policies/pick_first.h',
                               'src/core/client_config/lb_policy.h',
+                              'src/core/client_config/lb_policy_factory.h',
+                              'src/core/client_config/lb_policy_registry.h',
                               'src/core/client_config/resolver.h',
                               'src/core/client_config/resolver_factory.h',
                               'src/core/client_config/resolver_registry.h',