cronet build related changes
diff --git a/BUILD b/BUILD
index 024a518..9b76111 100644
--- a/BUILD
+++ b/BUILD
@@ -295,7 +295,6 @@
     "src/core/ext/client_config/subchannel_call_holder.h",
     "src/core/ext/client_config/subchannel_index.h",
     "src/core/ext/client_config/uri_parser.h",
-    "third_party/objective_c/Cronet/cronet_c_for_grpc.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/census/aggregation.h",
@@ -460,9 +459,6 @@
     "src/core/ext/client_config/uri_parser.c",
     "src/core/ext/transport/chttp2/server/insecure/server_chttp2.c",
     "src/core/ext/transport/chttp2/client/insecure/channel_create.c",
-    "src/core/ext/transport/cronet/client/secure/cronet_channel_create.c",
-    "src/core/ext/transport/cronet/transport/cronet_api_dummy.c",
-    "src/core/ext/transport/cronet/transport/cronet_transport.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/lb_policy/pick_first/pick_first.c",
@@ -531,6 +527,215 @@
 
 
 cc_library(
+  name = "grpc_cronet",
+  srcs = [
+    "src/core/lib/channel/channel_args.h",
+    "src/core/lib/channel/channel_stack.h",
+    "src/core/lib/channel/channel_stack_builder.h",
+    "src/core/lib/channel/compress_filter.h",
+    "src/core/lib/channel/connected_channel.h",
+    "src/core/lib/channel/context.h",
+    "src/core/lib/channel/http_client_filter.h",
+    "src/core/lib/channel/http_server_filter.h",
+    "src/core/lib/compression/algorithm_metadata.h",
+    "src/core/lib/compression/message_compress.h",
+    "src/core/lib/debug/trace.h",
+    "src/core/lib/http/format_request.h",
+    "src/core/lib/http/httpcli.h",
+    "src/core/lib/http/parser.h",
+    "src/core/lib/iomgr/closure.h",
+    "src/core/lib/iomgr/endpoint.h",
+    "src/core/lib/iomgr/endpoint_pair.h",
+    "src/core/lib/iomgr/ev_poll_and_epoll_posix.h",
+    "src/core/lib/iomgr/ev_poll_posix.h",
+    "src/core/lib/iomgr/ev_posix.h",
+    "src/core/lib/iomgr/exec_ctx.h",
+    "src/core/lib/iomgr/executor.h",
+    "src/core/lib/iomgr/iocp_windows.h",
+    "src/core/lib/iomgr/iomgr.h",
+    "src/core/lib/iomgr/iomgr_internal.h",
+    "src/core/lib/iomgr/iomgr_posix.h",
+    "src/core/lib/iomgr/pollset.h",
+    "src/core/lib/iomgr/pollset_set.h",
+    "src/core/lib/iomgr/pollset_set_windows.h",
+    "src/core/lib/iomgr/pollset_windows.h",
+    "src/core/lib/iomgr/resolve_address.h",
+    "src/core/lib/iomgr/sockaddr.h",
+    "src/core/lib/iomgr/sockaddr_posix.h",
+    "src/core/lib/iomgr/sockaddr_utils.h",
+    "src/core/lib/iomgr/sockaddr_win32.h",
+    "src/core/lib/iomgr/socket_utils_posix.h",
+    "src/core/lib/iomgr/socket_windows.h",
+    "src/core/lib/iomgr/tcp_client.h",
+    "src/core/lib/iomgr/tcp_posix.h",
+    "src/core/lib/iomgr/tcp_server.h",
+    "src/core/lib/iomgr/tcp_windows.h",
+    "src/core/lib/iomgr/time_averaged_stats.h",
+    "src/core/lib/iomgr/timer.h",
+    "src/core/lib/iomgr/timer_heap.h",
+    "src/core/lib/iomgr/udp_server.h",
+    "src/core/lib/iomgr/unix_sockets_posix.h",
+    "src/core/lib/iomgr/wakeup_fd_pipe.h",
+    "src/core/lib/iomgr/wakeup_fd_posix.h",
+    "src/core/lib/iomgr/workqueue.h",
+    "src/core/lib/iomgr/workqueue_posix.h",
+    "src/core/lib/iomgr/workqueue_windows.h",
+    "src/core/lib/json/json.h",
+    "src/core/lib/json/json_common.h",
+    "src/core/lib/json/json_reader.h",
+    "src/core/lib/json/json_writer.h",
+    "src/core/lib/surface/api_trace.h",
+    "src/core/lib/surface/call.h",
+    "src/core/lib/surface/call_test_only.h",
+    "src/core/lib/surface/channel.h",
+    "src/core/lib/surface/channel_init.h",
+    "src/core/lib/surface/channel_stack_type.h",
+    "src/core/lib/surface/completion_queue.h",
+    "src/core/lib/surface/event_string.h",
+    "src/core/lib/surface/init.h",
+    "src/core/lib/surface/lame_client.h",
+    "src/core/lib/surface/server.h",
+    "src/core/lib/surface/surface_trace.h",
+    "src/core/lib/transport/byte_stream.h",
+    "src/core/lib/transport/connectivity_state.h",
+    "src/core/lib/transport/metadata.h",
+    "src/core/lib/transport/metadata_batch.h",
+    "src/core/lib/transport/static_metadata.h",
+    "src/core/lib/transport/transport.h",
+    "src/core/lib/transport/transport_impl.h",
+    "third_party/objective_c/Cronet/cronet_c_for_grpc.h",
+    "src/core/lib/surface/init.c",
+    "src/core/lib/channel/channel_args.c",
+    "src/core/lib/channel/channel_stack.c",
+    "src/core/lib/channel/channel_stack_builder.c",
+    "src/core/lib/channel/compress_filter.c",
+    "src/core/lib/channel/connected_channel.c",
+    "src/core/lib/channel/http_client_filter.c",
+    "src/core/lib/channel/http_server_filter.c",
+    "src/core/lib/compression/compression_algorithm.c",
+    "src/core/lib/compression/message_compress.c",
+    "src/core/lib/debug/trace.c",
+    "src/core/lib/http/format_request.c",
+    "src/core/lib/http/httpcli.c",
+    "src/core/lib/http/parser.c",
+    "src/core/lib/iomgr/closure.c",
+    "src/core/lib/iomgr/endpoint.c",
+    "src/core/lib/iomgr/endpoint_pair_posix.c",
+    "src/core/lib/iomgr/endpoint_pair_windows.c",
+    "src/core/lib/iomgr/ev_poll_and_epoll_posix.c",
+    "src/core/lib/iomgr/ev_poll_posix.c",
+    "src/core/lib/iomgr/ev_posix.c",
+    "src/core/lib/iomgr/exec_ctx.c",
+    "src/core/lib/iomgr/executor.c",
+    "src/core/lib/iomgr/iocp_windows.c",
+    "src/core/lib/iomgr/iomgr.c",
+    "src/core/lib/iomgr/iomgr_posix.c",
+    "src/core/lib/iomgr/iomgr_windows.c",
+    "src/core/lib/iomgr/pollset_set_windows.c",
+    "src/core/lib/iomgr/pollset_windows.c",
+    "src/core/lib/iomgr/resolve_address_posix.c",
+    "src/core/lib/iomgr/resolve_address_windows.c",
+    "src/core/lib/iomgr/sockaddr_utils.c",
+    "src/core/lib/iomgr/socket_utils_common_posix.c",
+    "src/core/lib/iomgr/socket_utils_linux.c",
+    "src/core/lib/iomgr/socket_utils_posix.c",
+    "src/core/lib/iomgr/socket_windows.c",
+    "src/core/lib/iomgr/tcp_client_posix.c",
+    "src/core/lib/iomgr/tcp_client_windows.c",
+    "src/core/lib/iomgr/tcp_posix.c",
+    "src/core/lib/iomgr/tcp_server_posix.c",
+    "src/core/lib/iomgr/tcp_server_windows.c",
+    "src/core/lib/iomgr/tcp_windows.c",
+    "src/core/lib/iomgr/time_averaged_stats.c",
+    "src/core/lib/iomgr/timer.c",
+    "src/core/lib/iomgr/timer_heap.c",
+    "src/core/lib/iomgr/udp_server.c",
+    "src/core/lib/iomgr/unix_sockets_posix.c",
+    "src/core/lib/iomgr/unix_sockets_posix_noop.c",
+    "src/core/lib/iomgr/wakeup_fd_eventfd.c",
+    "src/core/lib/iomgr/wakeup_fd_nospecial.c",
+    "src/core/lib/iomgr/wakeup_fd_pipe.c",
+    "src/core/lib/iomgr/wakeup_fd_posix.c",
+    "src/core/lib/iomgr/workqueue_posix.c",
+    "src/core/lib/iomgr/workqueue_windows.c",
+    "src/core/lib/json/json.c",
+    "src/core/lib/json/json_reader.c",
+    "src/core/lib/json/json_string.c",
+    "src/core/lib/json/json_writer.c",
+    "src/core/lib/surface/alarm.c",
+    "src/core/lib/surface/api_trace.c",
+    "src/core/lib/surface/byte_buffer.c",
+    "src/core/lib/surface/byte_buffer_reader.c",
+    "src/core/lib/surface/call.c",
+    "src/core/lib/surface/call_details.c",
+    "src/core/lib/surface/call_log_batch.c",
+    "src/core/lib/surface/channel.c",
+    "src/core/lib/surface/channel_init.c",
+    "src/core/lib/surface/channel_ping.c",
+    "src/core/lib/surface/channel_stack_type.c",
+    "src/core/lib/surface/completion_queue.c",
+    "src/core/lib/surface/event_string.c",
+    "src/core/lib/surface/lame_client.c",
+    "src/core/lib/surface/metadata_array.c",
+    "src/core/lib/surface/server.c",
+    "src/core/lib/surface/validate_metadata.c",
+    "src/core/lib/surface/version.c",
+    "src/core/lib/transport/byte_stream.c",
+    "src/core/lib/transport/connectivity_state.c",
+    "src/core/lib/transport/metadata.c",
+    "src/core/lib/transport/metadata_batch.c",
+    "src/core/lib/transport/static_metadata.c",
+    "src/core/lib/transport/transport.c",
+    "src/core/lib/transport/transport_op_string.c",
+    "src/core/ext/transport/cronet/client/secure/cronet_channel_create.c",
+    "src/core/ext/transport/cronet/transport/cronet_api_dummy.c",
+    "src/core/ext/transport/cronet/transport/cronet_transport.c",
+    "src/core/plugin_registry/grpc_cronet_plugin_registry.c",
+  ],
+  hdrs = [
+    "include/grpc/byte_buffer.h",
+    "include/grpc/byte_buffer_reader.h",
+    "include/grpc/compression.h",
+    "include/grpc/grpc.h",
+    "include/grpc/status.h",
+    "include/grpc/impl/codegen/byte_buffer.h",
+    "include/grpc/impl/codegen/byte_buffer_reader.h",
+    "include/grpc/impl/codegen/compression_types.h",
+    "include/grpc/impl/codegen/connectivity_state.h",
+    "include/grpc/impl/codegen/grpc_types.h",
+    "include/grpc/impl/codegen/propagation_bits.h",
+    "include/grpc/impl/codegen/status.h",
+    "include/grpc/impl/codegen/alloc.h",
+    "include/grpc/impl/codegen/atm.h",
+    "include/grpc/impl/codegen/atm_gcc_atomic.h",
+    "include/grpc/impl/codegen/atm_gcc_sync.h",
+    "include/grpc/impl/codegen/atm_win32.h",
+    "include/grpc/impl/codegen/log.h",
+    "include/grpc/impl/codegen/port_platform.h",
+    "include/grpc/impl/codegen/slice.h",
+    "include/grpc/impl/codegen/slice_buffer.h",
+    "include/grpc/impl/codegen/sync.h",
+    "include/grpc/impl/codegen/sync_generic.h",
+    "include/grpc/impl/codegen/sync_posix.h",
+    "include/grpc/impl/codegen/sync_win32.h",
+    "include/grpc/impl/codegen/time.h",
+    "include/grpc/grpc_cronet.h",
+    "include/grpc/grpc_security.h",
+    "include/grpc/grpc_security_constants.h",
+  ],
+  includes = [
+    "include",
+    ".",
+  ],
+  deps = [
+    "//external:libssl",
+    ":gpr",
+  ],
+)
+
+
+
+cc_library(
   name = "grpc_unsecure",
   srcs = [
     "src/core/lib/channel/channel_args.h",
@@ -1503,9 +1708,6 @@
     "src/core/ext/client_config/uri_parser.c",
     "src/core/ext/transport/chttp2/server/insecure/server_chttp2.c",
     "src/core/ext/transport/chttp2/client/insecure/channel_create.c",
-    "src/core/ext/transport/cronet/client/secure/cronet_channel_create.c",
-    "src/core/ext/transport/cronet/transport/cronet_api_dummy.c",
-    "src/core/ext/transport/cronet/transport/cronet_transport.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/lb_policy/pick_first/pick_first.c",
@@ -1689,7 +1891,6 @@
     "src/core/ext/client_config/subchannel_call_holder.h",
     "src/core/ext/client_config/subchannel_index.h",
     "src/core/ext/client_config/uri_parser.h",
-    "third_party/objective_c/Cronet/cronet_c_for_grpc.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/census/aggregation.h",