Merge pull request #6489 from jtattermusch/fully_qualify_task

Fully qualify System.Threading.Tasks.Task
diff --git a/BUILD b/BUILD
index fae3596..1da1650 100644
--- a/BUILD
+++ b/BUILD
@@ -285,42 +285,6 @@
     "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",
-    "include/grpc/byte_buffer.h",
-    "include/grpc/grpc.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/byte_buffer.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/log.h",
-    "include/grpc/impl/codegen/port_platform.h",
-    "include/grpc/impl/codegen/propagation_bits.h",
-    "include/grpc/impl/codegen/slice.h",
-    "include/grpc/impl/codegen/slice_buffer.h",
-    "include/grpc/impl/codegen/status.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/status.h",
-    "include/grpc/support/alloc.h",
-    "include/grpc/support/atm.h",
-    "include/grpc/support/host_port.h",
-    "include/grpc/support/log.h",
-    "include/grpc/support/port_platform.h",
-    "include/grpc/support/slice.h",
-    "include/grpc/support/slice_buffer.h",
-    "include/grpc/support/string_util.h",
-    "include/grpc/support/sync.h",
-    "include/grpc/support/time.h",
-    "include/grpc/support/useful.h",
-    "src/core/lib/support/string.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/v0/load_balancer.pb.h",
     "src/core/ext/census/aggregation.h",
@@ -475,9 +439,6 @@
     "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/v0/load_balancer.pb.c",
     "src/core/ext/lb_policy/pick_first/pick_first.c",
@@ -522,7 +483,6 @@
     "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",
     "include/grpc/census.h",
@@ -1500,9 +1460,6 @@
     "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/v0/load_balancer.pb.c",
     "src/core/ext/lb_policy/pick_first/pick_first.c",
@@ -1547,7 +1504,6 @@
     "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",
     "include/grpc/census.h",
@@ -1675,42 +1631,6 @@
     "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",
-    "include/grpc/byte_buffer.h",
-    "include/grpc/grpc.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/byte_buffer.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/log.h",
-    "include/grpc/impl/codegen/port_platform.h",
-    "include/grpc/impl/codegen/propagation_bits.h",
-    "include/grpc/impl/codegen/slice.h",
-    "include/grpc/impl/codegen/slice_buffer.h",
-    "include/grpc/impl/codegen/status.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/status.h",
-    "include/grpc/support/alloc.h",
-    "include/grpc/support/atm.h",
-    "include/grpc/support/host_port.h",
-    "include/grpc/support/log.h",
-    "include/grpc/support/port_platform.h",
-    "include/grpc/support/slice.h",
-    "include/grpc/support/slice_buffer.h",
-    "include/grpc/support/string_util.h",
-    "include/grpc/support/sync.h",
-    "include/grpc/support/time.h",
-    "include/grpc/support/useful.h",
-    "src/core/lib/support/string.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/v0/load_balancer.pb.h",
     "src/core/ext/census/aggregation.h",
diff --git a/Makefile b/Makefile
index 635df30..45003ad 100644
--- a/Makefile
+++ b/Makefile
@@ -2623,9 +2623,6 @@
     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/v0/load_balancer.pb.c \
     third_party/nanopb/pb_common.c \
@@ -2673,7 +2670,6 @@
     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 \
     include/grpc/census.h \
@@ -14321,9 +14317,6 @@
 # otherwise parallel compilation will fail if a source is compiled first.
 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)
-src/core/ext/transport/cronet/transport/cronet_api_dummy.c: $(OPENSSL_DEP)
-src/core/ext/transport/cronet/transport/cronet_transport.c: $(OPENSSL_DEP)
 src/core/lib/http/httpcli_security_connector.c: $(OPENSSL_DEP)
 src/core/lib/security/b64.c: $(OPENSSL_DEP)
 src/core/lib/security/client_auth_filter.c: $(OPENSSL_DEP)
diff --git a/binding.gyp b/binding.gyp
index 12a745f..4314ab7 100644
--- a/binding.gyp
+++ b/binding.gyp
@@ -709,9 +709,6 @@
         '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/v0/load_balancer.pb.c',
         'third_party/nanopb/pb_common.c',
diff --git a/build.yaml b/build.yaml
index 7a74e73..a21dc68 100644
--- a/build.yaml
+++ b/build.yaml
@@ -400,7 +400,6 @@
   - grpc_client_config
 - name: grpc_secure
   public_headers:
-  - include/grpc/grpc_cronet.h
   - include/grpc/grpc_security.h
   - include/grpc/grpc_security_constants.h
   headers:
@@ -548,63 +547,6 @@
   - grpc_transport_chttp2
   - grpc_base
   - grpc_secure
-- name: grpc_transport_cronet_client_secure
-  headers:
-  - include/grpc/byte_buffer.h
-  - include/grpc/grpc.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/byte_buffer.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/log.h
-  - include/grpc/impl/codegen/port_platform.h
-  - include/grpc/impl/codegen/propagation_bits.h
-  - include/grpc/impl/codegen/slice.h
-  - include/grpc/impl/codegen/slice_buffer.h
-  - include/grpc/impl/codegen/status.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/status.h
-  - include/grpc/support/alloc.h
-  - include/grpc/support/atm.h
-  - include/grpc/support/host_port.h
-  - include/grpc/support/log.h
-  - include/grpc/support/port_platform.h
-  - include/grpc/support/slice.h
-  - include/grpc/support/slice_buffer.h
-  - include/grpc/support/string_util.h
-  - include/grpc/support/sync.h
-  - include/grpc/support/time.h
-  - include/grpc/support/useful.h
-  - src/core/ext/transport/chttp2/transport/incoming_metadata.h
-  - src/core/lib/channel/channel_stack.h
-  - src/core/lib/channel/context.h
-  - src/core/lib/debug/trace.h
-  - src/core/lib/iomgr/closure.h
-  - src/core/lib/iomgr/exec_ctx.h
-  - src/core/lib/iomgr/pollset.h
-  - src/core/lib/iomgr/pollset_set.h
-  - src/core/lib/support/string.h
-  - src/core/lib/surface/channel.h
-  - src/core/lib/surface/channel_stack_type.h
-  - src/core/lib/transport/byte_stream.h
-  - src/core/lib/transport/metadata.h
-  - src/core/lib/transport/metadata_batch.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:
-  - 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
 - name: nanopb
   headers:
   - third_party/nanopb/pb.h
@@ -792,7 +734,6 @@
   - grpc_transport_chttp2_client_secure
   - grpc_transport_chttp2_server_insecure
   - grpc_transport_chttp2_client_insecure
-  - grpc_transport_cronet_client_secure
   - grpc_lb_policy_grpclb
   - grpc_lb_policy_pick_first
   - grpc_lb_policy_round_robin
diff --git a/config.m4 b/config.m4
index 5259e67..74f9ad2 100644
--- a/config.m4
+++ b/config.m4
@@ -228,9 +228,6 @@
     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/v0/load_balancer.pb.c \
     third_party/nanopb/pb_common.c \
@@ -569,8 +566,6 @@
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/transport/chttp2/server/insecure)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/transport/chttp2/server/secure)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/transport/chttp2/transport)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/transport/cronet/client/secure)
-  PHP_ADD_BUILD_DIR($ext_builddir/src/core/ext/transport/cronet/transport)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/channel)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/compression)
   PHP_ADD_BUILD_DIR($ext_builddir/src/core/lib/debug)
diff --git a/gRPC.podspec b/gRPC.podspec
index 018306c..569f89b 100644
--- a/gRPC.podspec
+++ b/gRPC.podspec
@@ -287,42 +287,6 @@
                       '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',
-                      'include/grpc/byte_buffer.h',
-                      'include/grpc/grpc.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/byte_buffer.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/log.h',
-                      'include/grpc/impl/codegen/port_platform.h',
-                      'include/grpc/impl/codegen/propagation_bits.h',
-                      'include/grpc/impl/codegen/slice.h',
-                      'include/grpc/impl/codegen/slice_buffer.h',
-                      'include/grpc/impl/codegen/status.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/status.h',
-                      'include/grpc/support/alloc.h',
-                      'include/grpc/support/atm.h',
-                      'include/grpc/support/host_port.h',
-                      'include/grpc/support/log.h',
-                      'include/grpc/support/port_platform.h',
-                      'include/grpc/support/slice.h',
-                      'include/grpc/support/slice_buffer.h',
-                      'include/grpc/support/string_util.h',
-                      'include/grpc/support/sync.h',
-                      'include/grpc/support/time.h',
-                      'include/grpc/support/useful.h',
-                      'src/core/lib/support/string.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/v0/load_balancer.pb.h',
                       'third_party/nanopb/pb.h',
@@ -361,7 +325,6 @@
                       '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',
                       'include/grpc/census.h',
@@ -511,9 +474,6 @@
                       '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/v0/load_balancer.pb.c',
                       'third_party/nanopb/pb_common.c',
@@ -670,42 +630,6 @@
                               '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',
-                              'include/grpc/byte_buffer.h',
-                              'include/grpc/grpc.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/byte_buffer.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/log.h',
-                              'include/grpc/impl/codegen/port_platform.h',
-                              'include/grpc/impl/codegen/propagation_bits.h',
-                              'include/grpc/impl/codegen/slice.h',
-                              'include/grpc/impl/codegen/slice_buffer.h',
-                              'include/grpc/impl/codegen/status.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/status.h',
-                              'include/grpc/support/alloc.h',
-                              'include/grpc/support/atm.h',
-                              'include/grpc/support/host_port.h',
-                              'include/grpc/support/log.h',
-                              'include/grpc/support/port_platform.h',
-                              'include/grpc/support/slice.h',
-                              'include/grpc/support/slice_buffer.h',
-                              'include/grpc/support/string_util.h',
-                              'include/grpc/support/sync.h',
-                              'include/grpc/support/time.h',
-                              'include/grpc/support/useful.h',
-                              'src/core/lib/support/string.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/v0/load_balancer.pb.h',
                               'third_party/nanopb/pb.h',
diff --git a/grpc.def b/grpc.def
index 09a94a6..61948ed 100644
--- a/grpc.def
+++ b/grpc.def
@@ -87,7 +87,6 @@
     grpc_header_nonbin_value_is_legal
     grpc_is_binary_header
     grpc_call_error_to_string
-    grpc_cronet_secure_channel_create
     grpc_auth_property_iterator_next
     grpc_auth_context_property_iterator
     grpc_auth_context_peer_identity
diff --git a/grpc.gemspec b/grpc.gemspec
index ace2871..475fc99 100755
--- a/grpc.gemspec
+++ b/grpc.gemspec
@@ -169,7 +169,6 @@
   s.files += %w( include/grpc/impl/codegen/sync_posix.h )
   s.files += %w( include/grpc/impl/codegen/sync_win32.h )
   s.files += %w( include/grpc/impl/codegen/time.h )
-  s.files += %w( include/grpc/grpc_cronet.h )
   s.files += %w( include/grpc/grpc_security.h )
   s.files += %w( include/grpc/grpc_security_constants.h )
   s.files += %w( include/grpc/census.h )
@@ -297,42 +296,6 @@
   s.files += %w( src/core/ext/client_config/subchannel_call_holder.h )
   s.files += %w( src/core/ext/client_config/subchannel_index.h )
   s.files += %w( src/core/ext/client_config/uri_parser.h )
-  s.files += %w( include/grpc/byte_buffer.h )
-  s.files += %w( include/grpc/grpc.h )
-  s.files += %w( include/grpc/impl/codegen/alloc.h )
-  s.files += %w( include/grpc/impl/codegen/atm.h )
-  s.files += %w( include/grpc/impl/codegen/atm_gcc_atomic.h )
-  s.files += %w( include/grpc/impl/codegen/atm_gcc_sync.h )
-  s.files += %w( include/grpc/impl/codegen/atm_win32.h )
-  s.files += %w( include/grpc/impl/codegen/byte_buffer.h )
-  s.files += %w( include/grpc/impl/codegen/compression_types.h )
-  s.files += %w( include/grpc/impl/codegen/connectivity_state.h )
-  s.files += %w( include/grpc/impl/codegen/grpc_types.h )
-  s.files += %w( include/grpc/impl/codegen/log.h )
-  s.files += %w( include/grpc/impl/codegen/port_platform.h )
-  s.files += %w( include/grpc/impl/codegen/propagation_bits.h )
-  s.files += %w( include/grpc/impl/codegen/slice.h )
-  s.files += %w( include/grpc/impl/codegen/slice_buffer.h )
-  s.files += %w( include/grpc/impl/codegen/status.h )
-  s.files += %w( include/grpc/impl/codegen/sync.h )
-  s.files += %w( include/grpc/impl/codegen/sync_generic.h )
-  s.files += %w( include/grpc/impl/codegen/sync_posix.h )
-  s.files += %w( include/grpc/impl/codegen/sync_win32.h )
-  s.files += %w( include/grpc/impl/codegen/time.h )
-  s.files += %w( include/grpc/status.h )
-  s.files += %w( include/grpc/support/alloc.h )
-  s.files += %w( include/grpc/support/atm.h )
-  s.files += %w( include/grpc/support/host_port.h )
-  s.files += %w( include/grpc/support/log.h )
-  s.files += %w( include/grpc/support/port_platform.h )
-  s.files += %w( include/grpc/support/slice.h )
-  s.files += %w( include/grpc/support/slice_buffer.h )
-  s.files += %w( include/grpc/support/string_util.h )
-  s.files += %w( include/grpc/support/sync.h )
-  s.files += %w( include/grpc/support/time.h )
-  s.files += %w( include/grpc/support/useful.h )
-  s.files += %w( src/core/lib/support/string.h )
-  s.files += %w( third_party/objective_c/Cronet/cronet_c_for_grpc.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/v0/load_balancer.pb.h )
   s.files += %w( third_party/nanopb/pb.h )
@@ -491,9 +454,6 @@
   s.files += %w( src/core/ext/client_config/uri_parser.c )
   s.files += %w( src/core/ext/transport/chttp2/server/insecure/server_chttp2.c )
   s.files += %w( src/core/ext/transport/chttp2/client/insecure/channel_create.c )
-  s.files += %w( src/core/ext/transport/cronet/client/secure/cronet_channel_create.c )
-  s.files += %w( src/core/ext/transport/cronet/transport/cronet_api_dummy.c )
-  s.files += %w( src/core/ext/transport/cronet/transport/cronet_transport.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/v0/load_balancer.pb.c )
   s.files += %w( third_party/nanopb/pb_common.c )
diff --git a/package.xml b/package.xml
index 716d6ed..ab6dee0 100644
--- a/package.xml
+++ b/package.xml
@@ -176,7 +176,6 @@
     <file baseinstalldir="/" name="include/grpc/impl/codegen/sync_posix.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/sync_win32.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/impl/codegen/time.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/grpc_cronet.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/grpc_security.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/grpc_security_constants.h" role="src" />
     <file baseinstalldir="/" name="include/grpc/census.h" role="src" />
@@ -304,42 +303,6 @@
     <file baseinstalldir="/" name="src/core/ext/client_config/subchannel_call_holder.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/client_config/subchannel_index.h" role="src" />
     <file baseinstalldir="/" name="src/core/ext/client_config/uri_parser.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/byte_buffer.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/grpc.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/impl/codegen/alloc.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/impl/codegen/atm.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/impl/codegen/atm_gcc_atomic.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/impl/codegen/atm_gcc_sync.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/impl/codegen/atm_win32.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/impl/codegen/byte_buffer.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/impl/codegen/compression_types.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/impl/codegen/connectivity_state.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/impl/codegen/grpc_types.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/impl/codegen/log.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/impl/codegen/port_platform.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/impl/codegen/propagation_bits.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/impl/codegen/slice.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/impl/codegen/slice_buffer.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/impl/codegen/status.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/impl/codegen/sync.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/impl/codegen/sync_generic.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/impl/codegen/sync_posix.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/impl/codegen/sync_win32.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/impl/codegen/time.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/status.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/support/alloc.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/support/atm.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/support/host_port.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/support/log.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/support/port_platform.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/support/slice.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/support/slice_buffer.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/support/string_util.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/support/sync.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/support/time.h" role="src" />
-    <file baseinstalldir="/" name="include/grpc/support/useful.h" role="src" />
-    <file baseinstalldir="/" name="src/core/lib/support/string.h" role="src" />
-    <file baseinstalldir="/" name="third_party/objective_c/Cronet/cronet_c_for_grpc.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/v0/load_balancer.pb.h" role="src" />
     <file baseinstalldir="/" name="third_party/nanopb/pb.h" role="src" />
@@ -498,9 +461,6 @@
     <file baseinstalldir="/" name="src/core/ext/client_config/uri_parser.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/client/insecure/channel_create.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/transport/cronet/client/secure/cronet_channel_create.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/transport/cronet/transport/cronet_api_dummy.c" role="src" />
-    <file baseinstalldir="/" name="src/core/ext/transport/cronet/transport/cronet_transport.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/v0/load_balancer.pb.c" role="src" />
     <file baseinstalldir="/" name="third_party/nanopb/pb_common.c" role="src" />
diff --git a/src/core/ext/transport/cronet/client/secure/cronet_channel_create.c b/src/core/ext/transport/cronet/client/secure/cronet_channel_create.c
deleted file mode 100644
index df1acdd..0000000
--- a/src/core/ext/transport/cronet/client/secure/cronet_channel_create.c
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- *
- * Copyright 2016, 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 <grpc/impl/codegen/port_platform.h>
-
-#include <stdio.h>
-#include <string.h>
-
-#include <grpc/support/alloc.h>
-#include <grpc/support/log.h>
-
-#include "src/core/lib/surface/channel.h"
-#include "src/core/lib/transport/transport_impl.h"
-
-// Cronet transport object
-typedef struct cronet_transport {
-  grpc_transport base;  // must be first element in this structure
-  void *engine;
-  char *host;
-} cronet_transport;
-
-extern grpc_transport_vtable grpc_cronet_vtable;
-
-GRPCAPI grpc_channel *grpc_cronet_secure_channel_create(
-    void *engine, const char *target, const grpc_channel_args *args,
-    void *reserved) {
-  cronet_transport *ct = gpr_malloc(sizeof(cronet_transport));
-  ct->base.vtable = &grpc_cronet_vtable;
-  ct->engine = engine;
-  ct->host = gpr_malloc(strlen(target) + 1);
-  strcpy(ct->host, target);
-  gpr_log(GPR_DEBUG,
-          "grpc_create_cronet_transport: cronet_engine = %p, target=%s", engine,
-          ct->host);
-
-  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
-  return grpc_channel_create(&exec_ctx, target, args,
-                             GRPC_CLIENT_DIRECT_CHANNEL, (grpc_transport *)ct);
-}
diff --git a/src/core/ext/transport/cronet/transport/cronet_api_dummy.c b/src/core/ext/transport/cronet/transport/cronet_api_dummy.c
deleted file mode 100644
index 687026c..0000000
--- a/src/core/ext/transport/cronet/transport/cronet_api_dummy.c
+++ /dev/null
@@ -1,85 +0,0 @@
-/*
- *
- * Copyright 2016, 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.
- *
- */
-
-/* This file has empty implementation of all the functions exposed by the cronet
-library, so we can build it in all environments */
-
-#include <stdbool.h>
-
-#include <grpc/support/log.h>
-
-#include "third_party/objective_c/Cronet/cronet_c_for_grpc.h"
-
-#ifdef GRPC_COMPILE_WITH_CRONET
-/* link with the real CRONET library in the build system */
-#else
-/* Dummy implementation of cronet API just to test for build-ability */
-cronet_bidirectional_stream* cronet_bidirectional_stream_create(
-    cronet_engine* engine, void* annotation,
-    cronet_bidirectional_stream_callback* callback) {
-  GPR_ASSERT(0);
-  return NULL;
-}
-
-int cronet_bidirectional_stream_destroy(cronet_bidirectional_stream* stream) {
-  GPR_ASSERT(0);
-  return 0;
-}
-
-int cronet_bidirectional_stream_start(
-    cronet_bidirectional_stream* stream, const char* url, int priority,
-    const char* method, const cronet_bidirectional_stream_header_array* headers,
-    bool end_of_stream) {
-  GPR_ASSERT(0);
-  return 0;
-}
-
-int cronet_bidirectional_stream_read(cronet_bidirectional_stream* stream,
-                                     char* buffer, int capacity) {
-  GPR_ASSERT(0);
-  return 0;
-}
-
-int cronet_bidirectional_stream_write(cronet_bidirectional_stream* stream,
-                                      const char* buffer, int count,
-                                      bool end_of_stream) {
-  GPR_ASSERT(0);
-  return 0;
-}
-
-int cronet_bidirectional_stream_cancel(cronet_bidirectional_stream* stream) {
-  GPR_ASSERT(0);
-  return 0;
-}
-
-#endif /* GRPC_COMPILE_WITH_CRONET */
diff --git a/src/core/ext/transport/cronet/transport/cronet_transport.c b/src/core/ext/transport/cronet/transport/cronet_transport.c
deleted file mode 100644
index 5bb0851..0000000
--- a/src/core/ext/transport/cronet/transport/cronet_transport.c
+++ /dev/null
@@ -1,640 +0,0 @@
-/*
- *
- * Copyright 2016, 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 <string.h>
-
-#include <grpc/impl/codegen/port_platform.h>
-#include <grpc/support/alloc.h>
-#include <grpc/support/host_port.h>
-#include <grpc/support/log.h>
-#include <grpc/support/slice_buffer.h>
-#include <grpc/support/string_util.h>
-#include <grpc/support/useful.h>
-
-#include "src/core/ext/transport/chttp2/transport/incoming_metadata.h"
-#include "src/core/lib/iomgr/exec_ctx.h"
-#include "src/core/lib/support/string.h"
-#include "src/core/lib/surface/channel.h"
-#include "src/core/lib/transport/metadata_batch.h"
-#include "src/core/lib/transport/transport_impl.h"
-#include "third_party/objective_c/Cronet/cronet_c_for_grpc.h"
-
-#define GRPC_HEADER_SIZE_IN_BYTES 5
-
-// Global flag that gets set with GRPC_TRACE env variable
-int grpc_cronet_trace = 1;
-
-// Cronet transport object
-struct grpc_cronet_transport {
-  grpc_transport base; /* must be first element in this structure */
-  cronet_engine *engine;
-  char *host;
-};
-
-typedef struct grpc_cronet_transport grpc_cronet_transport;
-
-enum send_state {
-  CRONET_SEND_IDLE = 0,
-  CRONET_REQ_STARTED,
-  CRONET_SEND_HEADER,
-  CRONET_WRITE,
-  CRONET_WRITE_COMPLETED,
-};
-
-enum recv_state {
-  CRONET_RECV_IDLE = 0,
-  CRONET_RECV_READ_LENGTH,
-  CRONET_RECV_READ_DATA,
-  CRONET_RECV_CLOSED,
-};
-
-static const char *recv_state_name[] = {
-    "CRONET_RECV_IDLE", "CRONET_RECV_READ_LENGTH", "CRONET_RECV_READ_DATA,",
-    "CRONET_RECV_CLOSED"};
-
-// Enum that identifies calling function.
-enum e_caller {
-  PERFORM_STREAM_OP,
-  ON_READ_COMPLETE,
-  ON_RESPONSE_HEADERS_RECEIVED,
-  ON_RESPONSE_TRAILERS_RECEIVED
-};
-
-enum callback_id {
-  CB_SEND_INITIAL_METADATA = 0,
-  CB_SEND_MESSAGE,
-  CB_SEND_TRAILING_METADATA,
-  CB_RECV_MESSAGE,
-  CB_RECV_INITIAL_METADATA,
-  CB_RECV_TRAILING_METADATA,
-  CB_NUM_CALLBACKS
-};
-
-struct stream_obj {
-  // we store received bytes here as they trickle in.
-  gpr_slice_buffer write_slice_buffer;
-  cronet_bidirectional_stream *cbs;
-  gpr_slice slice;
-  gpr_slice_buffer read_slice_buffer;
-  struct grpc_slice_buffer_stream sbs;
-  char *read_buffer;
-  int remaining_read_bytes;
-  int total_read_bytes;
-
-  char *write_buffer;
-  size_t write_buffer_size;
-
-  // Hold the URL
-  char *url;
-
-  bool response_headers_received;
-  bool read_requested;
-  bool response_trailers_received;
-  bool read_closed;
-
-  // Recv message stuff
-  grpc_byte_buffer **recv_message;
-  // Initial metadata stuff
-  grpc_metadata_batch *recv_initial_metadata;
-  // Trailing metadata stuff
-  grpc_metadata_batch *recv_trailing_metadata;
-  grpc_chttp2_incoming_metadata_buffer imb;
-
-  // This mutex protects receive state machine execution
-  gpr_mu recv_mu;
-  // we can queue up up to 2 callbacks for each OP
-  grpc_closure *callback_list[CB_NUM_CALLBACKS][2];
-
-  // storage for header
-  cronet_bidirectional_stream_header *headers;
-  uint32_t num_headers;
-  cronet_bidirectional_stream_header_array header_array;
-  // state tracking
-  enum recv_state cronet_recv_state;
-  enum send_state cronet_send_state;
-};
-
-typedef struct stream_obj stream_obj;
-
-static void next_send_step(stream_obj *s);
-static void next_recv_step(stream_obj *s, enum e_caller caller);
-
-static void set_pollset_do_nothing(grpc_exec_ctx *exec_ctx, grpc_transport *gt,
-                                   grpc_stream *gs, grpc_pollset *pollset) {}
-
-static void enqueue_callbacks(grpc_closure *callback_list[]) {
-  grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
-  if (callback_list[0]) {
-    grpc_exec_ctx_enqueue(&exec_ctx, callback_list[0], true, NULL);
-    callback_list[0] = NULL;
-  }
-  if (callback_list[1]) {
-    grpc_exec_ctx_enqueue(&exec_ctx, callback_list[1], true, NULL);
-    callback_list[1] = NULL;
-  }
-  grpc_exec_ctx_finish(&exec_ctx);
-}
-
-static void on_canceled(cronet_bidirectional_stream *stream) {
-  if (grpc_cronet_trace) {
-    gpr_log(GPR_DEBUG, "on_canceled %p", stream);
-  }
-}
-
-static void on_failed(cronet_bidirectional_stream *stream, int net_error) {
-  if (grpc_cronet_trace) {
-    gpr_log(GPR_DEBUG, "on_failed %p, error = %d", stream, net_error);
-  }
-}
-
-static void on_succeeded(cronet_bidirectional_stream *stream) {
-  if (grpc_cronet_trace) {
-    gpr_log(GPR_DEBUG, "on_succeeded %p", stream);
-  }
-}
-
-static void on_response_trailers_received(
-    cronet_bidirectional_stream *stream,
-    const cronet_bidirectional_stream_header_array *trailers) {
-  if (grpc_cronet_trace) {
-    gpr_log(GPR_DEBUG, "R: on_response_trailers_received");
-  }
-  stream_obj *s = (stream_obj *)stream->annotation;
-
-  memset(&s->imb, 0, sizeof(s->imb));
-  grpc_chttp2_incoming_metadata_buffer_init(&s->imb);
-  unsigned int i = 0;
-  for (i = 0; i < trailers->count; i++) {
-    grpc_chttp2_incoming_metadata_buffer_add(
-        &s->imb, grpc_mdelem_from_metadata_strings(
-                     grpc_mdstr_from_string(trailers->headers[i].key),
-                     grpc_mdstr_from_string(trailers->headers[i].value)));
-  }
-  s->response_trailers_received = true;
-  next_recv_step(s, ON_RESPONSE_TRAILERS_RECEIVED);
-}
-
-static void on_write_completed(cronet_bidirectional_stream *stream,
-                               const char *data) {
-  if (grpc_cronet_trace) {
-    gpr_log(GPR_DEBUG, "W: on_write_completed");
-  }
-  stream_obj *s = (stream_obj *)stream->annotation;
-  enqueue_callbacks(s->callback_list[CB_SEND_MESSAGE]);
-  s->cronet_send_state = CRONET_WRITE_COMPLETED;
-  next_send_step(s);
-}
-
-static void process_recv_message(stream_obj *s, const uint8_t *recv_data) {
-  gpr_slice read_data_slice = gpr_slice_malloc((uint32_t)s->total_read_bytes);
-  uint8_t *dst_p = GPR_SLICE_START_PTR(read_data_slice);
-  memcpy(dst_p, recv_data, (size_t)s->total_read_bytes);
-  gpr_slice_buffer_add(&s->read_slice_buffer, read_data_slice);
-  grpc_slice_buffer_stream_init(&s->sbs, &s->read_slice_buffer, 0);
-  *s->recv_message = (grpc_byte_buffer *)&s->sbs;
-}
-
-static int parse_grpc_header(const uint8_t *data) {
-  const uint8_t *p = data + 1;
-  int length = 0;
-  length |= ((uint8_t)*p++) << 24;
-  length |= ((uint8_t)*p++) << 16;
-  length |= ((uint8_t)*p++) << 8;
-  length |= ((uint8_t)*p++);
-  return length;
-}
-
-static void on_read_completed(cronet_bidirectional_stream *stream, char *data,
-                              int count) {
-  stream_obj *s = (stream_obj *)stream->annotation;
-  if (grpc_cronet_trace) {
-    gpr_log(GPR_DEBUG, "R: on_read_completed count=%d, total=%d, remaining=%d",
-            count, s->total_read_bytes, s->remaining_read_bytes);
-  }
-  if (count > 0) {
-    GPR_ASSERT(s->recv_message);
-    s->remaining_read_bytes -= count;
-    next_recv_step(s, ON_READ_COMPLETE);
-  } else {
-    s->read_closed = true;
-    next_recv_step(s, ON_READ_COMPLETE);
-  }
-}
-
-static void on_response_headers_received(
-    cronet_bidirectional_stream *stream,
-    const cronet_bidirectional_stream_header_array *headers,
-    const char *negotiated_protocol) {
-  if (grpc_cronet_trace) {
-    gpr_log(GPR_DEBUG, "R: on_response_headers_received");
-  }
-  stream_obj *s = (stream_obj *)stream->annotation;
-  enqueue_callbacks(s->callback_list[CB_RECV_INITIAL_METADATA]);
-  s->response_headers_received = true;
-  next_recv_step(s, ON_RESPONSE_HEADERS_RECEIVED);
-}
-
-static void on_request_headers_sent(cronet_bidirectional_stream *stream) {
-  if (grpc_cronet_trace) {
-    gpr_log(GPR_DEBUG, "W: on_request_headers_sent");
-  }
-  stream_obj *s = (stream_obj *)stream->annotation;
-  enqueue_callbacks(s->callback_list[CB_SEND_INITIAL_METADATA]);
-  s->cronet_send_state = CRONET_SEND_HEADER;
-  next_send_step(s);
-}
-
-// Callback function pointers (invoked by cronet in response to events)
-static cronet_bidirectional_stream_callback callbacks = {
-    on_request_headers_sent,
-    on_response_headers_received,
-    on_read_completed,
-    on_write_completed,
-    on_response_trailers_received,
-    on_succeeded,
-    on_failed,
-    on_canceled};
-
-static void invoke_closing_callback(stream_obj *s) {
-  grpc_chttp2_incoming_metadata_buffer_publish(&s->imb,
-                                               s->recv_trailing_metadata);
-  if (s->callback_list[CB_RECV_TRAILING_METADATA]) {
-    enqueue_callbacks(s->callback_list[CB_RECV_TRAILING_METADATA]);
-  }
-}
-
-static void set_recv_state(stream_obj *s, enum recv_state state) {
-  if (grpc_cronet_trace) {
-    gpr_log(GPR_DEBUG, "next_state = %s", recv_state_name[state]);
-  }
-  s->cronet_recv_state = state;
-}
-
-// This is invoked from perform_stream_op, and all on_xxxx callbacks.
-static void next_recv_step(stream_obj *s, enum e_caller caller) {
-  gpr_mu_lock(&s->recv_mu);
-  switch (s->cronet_recv_state) {
-    case CRONET_RECV_IDLE:
-      if (grpc_cronet_trace) {
-        gpr_log(GPR_DEBUG, "cronet_recv_state = CRONET_RECV_IDLE");
-      }
-      if (caller == PERFORM_STREAM_OP ||
-          caller == ON_RESPONSE_HEADERS_RECEIVED) {
-        if (s->read_closed && s->response_trailers_received) {
-          invoke_closing_callback(s);
-          set_recv_state(s, CRONET_RECV_CLOSED);
-        } else if (s->response_headers_received == true &&
-                   s->read_requested == true) {
-          set_recv_state(s, CRONET_RECV_READ_LENGTH);
-          s->total_read_bytes = s->remaining_read_bytes =
-              GRPC_HEADER_SIZE_IN_BYTES;
-          GPR_ASSERT(s->read_buffer);
-          if (grpc_cronet_trace) {
-            gpr_log(GPR_DEBUG, "R: cronet_bidirectional_stream_read()");
-          }
-          cronet_bidirectional_stream_read(s->cbs, s->read_buffer,
-                                           s->remaining_read_bytes);
-        }
-      }
-      break;
-    case CRONET_RECV_READ_LENGTH:
-      if (grpc_cronet_trace) {
-        gpr_log(GPR_DEBUG, "cronet_recv_state = CRONET_RECV_READ_LENGTH");
-      }
-      if (caller == ON_READ_COMPLETE) {
-        if (s->read_closed) {
-          invoke_closing_callback(s);
-          enqueue_callbacks(s->callback_list[CB_RECV_MESSAGE]);
-          set_recv_state(s, CRONET_RECV_CLOSED);
-        } else {
-          GPR_ASSERT(s->remaining_read_bytes == 0);
-          set_recv_state(s, CRONET_RECV_READ_DATA);
-          s->total_read_bytes = s->remaining_read_bytes =
-              parse_grpc_header((const uint8_t *)s->read_buffer);
-          s->read_buffer =
-              gpr_realloc(s->read_buffer, (uint32_t)s->remaining_read_bytes);
-          GPR_ASSERT(s->read_buffer);
-          if (grpc_cronet_trace) {
-            gpr_log(GPR_DEBUG, "R: cronet_bidirectional_stream_read()");
-          }
-          cronet_bidirectional_stream_read(s->cbs, (char *)s->read_buffer,
-                                           s->remaining_read_bytes);
-        }
-      }
-      break;
-    case CRONET_RECV_READ_DATA:
-      if (grpc_cronet_trace) {
-        gpr_log(GPR_DEBUG, "cronet_recv_state = CRONET_RECV_READ_DATA");
-      }
-      if (caller == ON_READ_COMPLETE) {
-        if (s->remaining_read_bytes > 0) {
-          int offset = s->total_read_bytes - s->remaining_read_bytes;
-          GPR_ASSERT(s->read_buffer);
-          if (grpc_cronet_trace) {
-            gpr_log(GPR_DEBUG, "R: cronet_bidirectional_stream_read()");
-          }
-          cronet_bidirectional_stream_read(
-              s->cbs, (char *)s->read_buffer + offset, s->remaining_read_bytes);
-        } else {
-          gpr_slice_buffer_init(&s->read_slice_buffer);
-          uint8_t *p = (uint8_t *)s->read_buffer;
-          process_recv_message(s, p);
-          set_recv_state(s, CRONET_RECV_IDLE);
-          enqueue_callbacks(s->callback_list[CB_RECV_MESSAGE]);
-        }
-      }
-      break;
-    case CRONET_RECV_CLOSED:
-      break;
-    default:
-      GPR_ASSERT(0);  // Should not reach here
-      break;
-  }
-  gpr_mu_unlock(&s->recv_mu);
-}
-
-// This function takes the data from s->write_slice_buffer and assembles into
-// a contiguous byte stream with 5 byte gRPC header prepended.
-static void create_grpc_frame(stream_obj *s) {
-  gpr_slice slice = gpr_slice_buffer_take_first(&s->write_slice_buffer);
-  uint8_t *raw_data = GPR_SLICE_START_PTR(slice);
-  size_t length = GPR_SLICE_LENGTH(slice);
-  s->write_buffer_size = length + GRPC_HEADER_SIZE_IN_BYTES;
-  s->write_buffer = gpr_realloc(s->write_buffer, s->write_buffer_size);
-  uint8_t *p = (uint8_t *)s->write_buffer;
-  // Append 5 byte header
-  *p++ = 0;
-  *p++ = (uint8_t)(length >> 24);
-  *p++ = (uint8_t)(length >> 16);
-  *p++ = (uint8_t)(length >> 8);
-  *p++ = (uint8_t)(length);
-  // append actual data
-  memcpy(p, raw_data, length);
-}
-
-static void do_write(stream_obj *s) {
-  gpr_slice_buffer *sb = &s->write_slice_buffer;
-  GPR_ASSERT(sb->count <= 1);
-  if (sb->count > 0) {
-    create_grpc_frame(s);
-    if (grpc_cronet_trace) {
-      gpr_log(GPR_DEBUG, "W: cronet_bidirectional_stream_write");
-    }
-    cronet_bidirectional_stream_write(s->cbs, s->write_buffer,
-                                      (int)s->write_buffer_size, false);
-  }
-}
-
-//
-static void next_send_step(stream_obj *s) {
-  switch (s->cronet_send_state) {
-    case CRONET_SEND_IDLE:
-      GPR_ASSERT(
-          s->cbs);  // cronet_bidirectional_stream is not initialized yet.
-      s->cronet_send_state = CRONET_REQ_STARTED;
-      if (grpc_cronet_trace) {
-        gpr_log(GPR_DEBUG, "cronet_bidirectional_stream_start to %s", s->url);
-      }
-      cronet_bidirectional_stream_start(s->cbs, s->url, 0, "POST",
-                                        &s->header_array, false);
-      // we no longer need the memory that was allocated earlier.
-      gpr_free(s->header_array.headers);
-      break;
-    case CRONET_SEND_HEADER:
-      do_write(s);
-      s->cronet_send_state = CRONET_WRITE;
-      break;
-    case CRONET_WRITE_COMPLETED:
-      do_write(s);
-      break;
-    default:
-      GPR_ASSERT(0);
-      break;
-  }
-}
-
-static void convert_metadata_to_cronet_headers(grpc_linked_mdelem *head,
-                                               const char *host,
-                                               stream_obj *s) {
-  grpc_linked_mdelem *curr = head;
-  // Walk the linked list and get number of header fields
-  uint32_t num_headers_available = 0;
-  while (curr != NULL) {
-    curr = curr->next;
-    num_headers_available++;
-  }
-  // Allocate enough memory
-  s->headers = (cronet_bidirectional_stream_header *)gpr_malloc(
-      sizeof(cronet_bidirectional_stream_header) * num_headers_available);
-
-  // Walk the linked list again, this time copying the header fields.
-  // s->num_headers
-  // can be less than num_headers_available, as some headers are not used for
-  // cronet
-  curr = head;
-  s->num_headers = 0;
-  while (s->num_headers < num_headers_available) {
-    grpc_mdelem *mdelem = curr->md;
-    curr = curr->next;
-    const char *key = grpc_mdstr_as_c_string(mdelem->key);
-    const char *value = grpc_mdstr_as_c_string(mdelem->value);
-    if (strcmp(key, ":scheme") == 0 || strcmp(key, ":method") == 0 ||
-        strcmp(key, ":authority") == 0) {
-      // Cronet populates these fields on its own.
-      continue;
-    }
-    if (strcmp(key, ":path") == 0) {
-      // Create URL by appending :path value to the hostname
-      gpr_asprintf(&s->url, "https://%s%s", host, value);
-      if (grpc_cronet_trace) {
-        gpr_log(GPR_DEBUG, "extracted URL = %s", s->url);
-      }
-      continue;
-    }
-    s->headers[s->num_headers].key = key;
-    s->headers[s->num_headers].value = value;
-    s->num_headers++;
-    if (curr == NULL) {
-      break;
-    }
-  }
-}
-
-static void perform_stream_op(grpc_exec_ctx *exec_ctx, grpc_transport *gt,
-                              grpc_stream *gs, grpc_transport_stream_op *op) {
-  grpc_cronet_transport *ct = (grpc_cronet_transport *)gt;
-  GPR_ASSERT(ct->engine);
-  stream_obj *s = (stream_obj *)gs;
-  if (op->recv_trailing_metadata) {
-    if (grpc_cronet_trace) {
-      gpr_log(GPR_DEBUG,
-              "perform_stream_op - recv_trailing_metadata: on_complete=%p",
-              op->on_complete);
-    }
-    s->recv_trailing_metadata = op->recv_trailing_metadata;
-    GPR_ASSERT(!s->callback_list[CB_RECV_TRAILING_METADATA][0]);
-    s->callback_list[CB_RECV_TRAILING_METADATA][0] = op->on_complete;
-  }
-  if (op->recv_message) {
-    if (grpc_cronet_trace) {
-      gpr_log(GPR_DEBUG, "perform_stream_op - recv_message: on_complete=%p",
-              op->on_complete);
-    }
-    s->recv_message = (grpc_byte_buffer **)op->recv_message;
-    GPR_ASSERT(!s->callback_list[CB_RECV_MESSAGE][0]);
-    GPR_ASSERT(!s->callback_list[CB_RECV_MESSAGE][1]);
-    s->callback_list[CB_RECV_MESSAGE][0] = op->recv_message_ready;
-    s->callback_list[CB_RECV_MESSAGE][1] = op->on_complete;
-    s->read_requested = true;
-    next_recv_step(s, PERFORM_STREAM_OP);
-  }
-  if (op->recv_initial_metadata) {
-    if (grpc_cronet_trace) {
-      gpr_log(GPR_DEBUG, "perform_stream_op - recv_initial_metadata:=%p",
-              op->on_complete);
-    }
-    s->recv_initial_metadata = op->recv_initial_metadata;
-    GPR_ASSERT(!s->callback_list[CB_RECV_INITIAL_METADATA][0]);
-    GPR_ASSERT(!s->callback_list[CB_RECV_INITIAL_METADATA][1]);
-    s->callback_list[CB_RECV_INITIAL_METADATA][0] =
-        op->recv_initial_metadata_ready;
-    s->callback_list[CB_RECV_INITIAL_METADATA][1] = op->on_complete;
-  }
-  if (op->send_initial_metadata) {
-    if (grpc_cronet_trace) {
-      gpr_log(GPR_DEBUG,
-              "perform_stream_op - send_initial_metadata: on_complete=%p",
-              op->on_complete);
-    }
-    s->num_headers = 0;
-    convert_metadata_to_cronet_headers(op->send_initial_metadata->list.head,
-                                       ct->host, s);
-    s->header_array.count = s->num_headers;
-    s->header_array.capacity = s->num_headers;
-    s->header_array.headers = s->headers;
-    GPR_ASSERT(!s->callback_list[CB_SEND_INITIAL_METADATA][0]);
-    s->callback_list[CB_SEND_INITIAL_METADATA][0] = op->on_complete;
-  }
-  if (op->send_message) {
-    if (grpc_cronet_trace) {
-      gpr_log(GPR_DEBUG, "perform_stream_op - send_message: on_complete=%p",
-              op->on_complete);
-    }
-    grpc_byte_stream_next(exec_ctx, op->send_message, &s->slice,
-                          op->send_message->length, NULL);
-    // Check that compression flag is not ON. We don't support compression yet.
-    // TODO (makdharma): add compression support
-    GPR_ASSERT(op->send_message->flags == 0);
-    gpr_slice_buffer_add(&s->write_slice_buffer, s->slice);
-    if (s->cbs == NULL) {
-      if (grpc_cronet_trace) {
-        gpr_log(GPR_DEBUG, "cronet_bidirectional_stream_create");
-      }
-      s->cbs = cronet_bidirectional_stream_create(ct->engine, s, &callbacks);
-      GPR_ASSERT(s->cbs);
-      s->read_closed = false;
-      s->response_trailers_received = false;
-      s->response_headers_received = false;
-      s->cronet_send_state = CRONET_SEND_IDLE;
-      s->cronet_recv_state = CRONET_RECV_IDLE;
-    }
-    GPR_ASSERT(!s->callback_list[CB_SEND_MESSAGE][0]);
-    s->callback_list[CB_SEND_MESSAGE][0] = op->on_complete;
-    next_send_step(s);
-  }
-  if (op->send_trailing_metadata) {
-    if (grpc_cronet_trace) {
-      gpr_log(GPR_DEBUG,
-              "perform_stream_op - send_trailing_metadata: on_complete=%p",
-              op->on_complete);
-    }
-    GPR_ASSERT(!s->callback_list[CB_SEND_TRAILING_METADATA][0]);
-    s->callback_list[CB_SEND_TRAILING_METADATA][0] = op->on_complete;
-    if (s->cbs) {
-      // Send an "empty" write to the far end to signal that we're done.
-      // This will induce the server to send down trailers.
-      if (grpc_cronet_trace) {
-        gpr_log(GPR_DEBUG, "W: cronet_bidirectional_stream_write");
-      }
-      cronet_bidirectional_stream_write(s->cbs, "abc", 0, true);
-    } else {
-      // We never created a stream. This was probably an empty request.
-      invoke_closing_callback(s);
-    }
-  }
-}
-
-static int init_stream(grpc_exec_ctx *exec_ctx, grpc_transport *gt,
-                       grpc_stream *gs, grpc_stream_refcount *refcount,
-                       const void *server_data) {
-  stream_obj *s = (stream_obj *)gs;
-  memset(s->callback_list, 0, sizeof(s->callback_list));
-  s->cbs = NULL;
-  gpr_mu_init(&s->recv_mu);
-  s->read_buffer = gpr_malloc(GRPC_HEADER_SIZE_IN_BYTES);
-  s->write_buffer = gpr_malloc(GRPC_HEADER_SIZE_IN_BYTES);
-  gpr_slice_buffer_init(&s->write_slice_buffer);
-  if (grpc_cronet_trace) {
-    gpr_log(GPR_DEBUG, "cronet_transport - init_stream");
-  }
-  return 0;
-}
-
-static void destroy_stream(grpc_exec_ctx *exec_ctx, grpc_transport *gt,
-                           grpc_stream *gs, void *and_free_memory) {
-  if (grpc_cronet_trace) {
-    gpr_log(GPR_DEBUG, "Destroy stream");
-  }
-  stream_obj *s = (stream_obj *)gs;
-  s->cbs = NULL;
-  gpr_free(s->read_buffer);
-  gpr_free(s->write_buffer);
-  gpr_free(s->url);
-  gpr_mu_destroy(&s->recv_mu);
-  if (and_free_memory) {
-    gpr_free(and_free_memory);
-  }
-}
-
-static void destroy_transport(grpc_exec_ctx *exec_ctx, grpc_transport *gt) {
-  grpc_cronet_transport *ct = (grpc_cronet_transport *)gt;
-  gpr_free(ct->host);
-  if (grpc_cronet_trace) {
-    gpr_log(GPR_DEBUG, "Destroy transport");
-  }
-}
-
-const grpc_transport_vtable grpc_cronet_vtable = {
-    sizeof(stream_obj),     "cronet_http",     init_stream,
-    set_pollset_do_nothing, perform_stream_op, NULL,
-    destroy_stream,         destroy_transport, NULL};
diff --git a/src/python/grpcio/grpc/_cython/imports.generated.c b/src/python/grpcio/grpc/_cython/imports.generated.c
index 0955147..f0a40db 100644
--- a/src/python/grpcio/grpc/_cython/imports.generated.c
+++ b/src/python/grpcio/grpc/_cython/imports.generated.c
@@ -125,7 +125,6 @@
 grpc_header_nonbin_value_is_legal_type grpc_header_nonbin_value_is_legal_import;
 grpc_is_binary_header_type grpc_is_binary_header_import;
 grpc_call_error_to_string_type grpc_call_error_to_string_import;
-grpc_cronet_secure_channel_create_type grpc_cronet_secure_channel_create_import;
 grpc_auth_property_iterator_next_type grpc_auth_property_iterator_next_import;
 grpc_auth_context_property_iterator_type grpc_auth_context_property_iterator_import;
 grpc_auth_context_peer_identity_type grpc_auth_context_peer_identity_import;
@@ -396,7 +395,6 @@
   grpc_header_nonbin_value_is_legal_import = (grpc_header_nonbin_value_is_legal_type) GetProcAddress(library, "grpc_header_nonbin_value_is_legal");
   grpc_is_binary_header_import = (grpc_is_binary_header_type) GetProcAddress(library, "grpc_is_binary_header");
   grpc_call_error_to_string_import = (grpc_call_error_to_string_type) GetProcAddress(library, "grpc_call_error_to_string");
-  grpc_cronet_secure_channel_create_import = (grpc_cronet_secure_channel_create_type) GetProcAddress(library, "grpc_cronet_secure_channel_create");
   grpc_auth_property_iterator_next_import = (grpc_auth_property_iterator_next_type) GetProcAddress(library, "grpc_auth_property_iterator_next");
   grpc_auth_context_property_iterator_import = (grpc_auth_context_property_iterator_type) GetProcAddress(library, "grpc_auth_context_property_iterator");
   grpc_auth_context_peer_identity_import = (grpc_auth_context_peer_identity_type) GetProcAddress(library, "grpc_auth_context_peer_identity");
diff --git a/src/python/grpcio/grpc/_cython/imports.generated.h b/src/python/grpcio/grpc/_cython/imports.generated.h
index 54c8aaa..d5e810b 100644
--- a/src/python/grpcio/grpc/_cython/imports.generated.h
+++ b/src/python/grpcio/grpc/_cython/imports.generated.h
@@ -43,7 +43,6 @@
 #include <grpc/census.h>
 #include <grpc/compression.h>
 #include <grpc/grpc.h>
-#include <grpc/grpc_cronet.h>
 #include <grpc/grpc_security.h>
 #include <grpc/impl/codegen/alloc.h>
 #include <grpc/impl/codegen/byte_buffer.h>
@@ -326,9 +325,6 @@
 typedef const char *(*grpc_call_error_to_string_type)(grpc_call_error error);
 extern grpc_call_error_to_string_type grpc_call_error_to_string_import;
 #define grpc_call_error_to_string grpc_call_error_to_string_import
-typedef grpc_channel *(*grpc_cronet_secure_channel_create_type)(void *engine, const char *target, const grpc_channel_args *args, void *reserved);
-extern grpc_cronet_secure_channel_create_type grpc_cronet_secure_channel_create_import;
-#define grpc_cronet_secure_channel_create grpc_cronet_secure_channel_create_import
 typedef const grpc_auth_property *(*grpc_auth_property_iterator_next_type)(grpc_auth_property_iterator *it);
 extern grpc_auth_property_iterator_next_type grpc_auth_property_iterator_next_import;
 #define grpc_auth_property_iterator_next grpc_auth_property_iterator_next_import
diff --git a/src/python/grpcio/grpc_core_dependencies.py b/src/python/grpcio/grpc_core_dependencies.py
index 5314329..dab6253 100644
--- a/src/python/grpcio/grpc_core_dependencies.py
+++ b/src/python/grpcio/grpc_core_dependencies.py
@@ -222,9 +222,6 @@
   '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/v0/load_balancer.pb.c',
   'third_party/nanopb/pb_common.c',
diff --git a/src/ruby/ext/grpc/rb_grpc.c b/src/ruby/ext/grpc/rb_grpc.c
index 06a07ac..5277148 100644
--- a/src/ruby/ext/grpc/rb_grpc.c
+++ b/src/ruby/ext/grpc/rb_grpc.c
@@ -50,6 +50,7 @@
 #include "rb_loader.h"
 #include "rb_server.h"
 #include "rb_server_credentials.h"
+#include "rb_signal.h"
 
 static VALUE grpc_rb_cTimeVal = Qnil;
 
@@ -332,6 +333,7 @@
   Init_grpc_channel_credentials();
   Init_grpc_server();
   Init_grpc_server_credentials();
+  Init_grpc_signals();
   Init_grpc_status_codes();
   Init_grpc_time_consts();
 }
diff --git a/src/ruby/ext/grpc/rb_grpc_imports.generated.c b/src/ruby/ext/grpc/rb_grpc_imports.generated.c
index cebbe8c..bc43f9d 100644
--- a/src/ruby/ext/grpc/rb_grpc_imports.generated.c
+++ b/src/ruby/ext/grpc/rb_grpc_imports.generated.c
@@ -125,7 +125,6 @@
 grpc_header_nonbin_value_is_legal_type grpc_header_nonbin_value_is_legal_import;
 grpc_is_binary_header_type grpc_is_binary_header_import;
 grpc_call_error_to_string_type grpc_call_error_to_string_import;
-grpc_cronet_secure_channel_create_type grpc_cronet_secure_channel_create_import;
 grpc_auth_property_iterator_next_type grpc_auth_property_iterator_next_import;
 grpc_auth_context_property_iterator_type grpc_auth_context_property_iterator_import;
 grpc_auth_context_peer_identity_type grpc_auth_context_peer_identity_import;
@@ -392,7 +391,6 @@
   grpc_header_nonbin_value_is_legal_import = (grpc_header_nonbin_value_is_legal_type) GetProcAddress(library, "grpc_header_nonbin_value_is_legal");
   grpc_is_binary_header_import = (grpc_is_binary_header_type) GetProcAddress(library, "grpc_is_binary_header");
   grpc_call_error_to_string_import = (grpc_call_error_to_string_type) GetProcAddress(library, "grpc_call_error_to_string");
-  grpc_cronet_secure_channel_create_import = (grpc_cronet_secure_channel_create_type) GetProcAddress(library, "grpc_cronet_secure_channel_create");
   grpc_auth_property_iterator_next_import = (grpc_auth_property_iterator_next_type) GetProcAddress(library, "grpc_auth_property_iterator_next");
   grpc_auth_context_property_iterator_import = (grpc_auth_context_property_iterator_type) GetProcAddress(library, "grpc_auth_context_property_iterator");
   grpc_auth_context_peer_identity_import = (grpc_auth_context_peer_identity_type) GetProcAddress(library, "grpc_auth_context_peer_identity");
diff --git a/src/ruby/ext/grpc/rb_grpc_imports.generated.h b/src/ruby/ext/grpc/rb_grpc_imports.generated.h
index d7ea6c5..b67361c 100644
--- a/src/ruby/ext/grpc/rb_grpc_imports.generated.h
+++ b/src/ruby/ext/grpc/rb_grpc_imports.generated.h
@@ -43,7 +43,6 @@
 #include <grpc/census.h>
 #include <grpc/compression.h>
 #include <grpc/grpc.h>
-#include <grpc/grpc_cronet.h>
 #include <grpc/grpc_security.h>
 #include <grpc/impl/codegen/alloc.h>
 #include <grpc/impl/codegen/byte_buffer.h>
@@ -326,9 +325,6 @@
 typedef const char *(*grpc_call_error_to_string_type)(grpc_call_error error);
 extern grpc_call_error_to_string_type grpc_call_error_to_string_import;
 #define grpc_call_error_to_string grpc_call_error_to_string_import
-typedef grpc_channel *(*grpc_cronet_secure_channel_create_type)(void *engine, const char *target, const grpc_channel_args *args, void *reserved);
-extern grpc_cronet_secure_channel_create_type grpc_cronet_secure_channel_create_import;
-#define grpc_cronet_secure_channel_create grpc_cronet_secure_channel_create_import
 typedef const grpc_auth_property *(*grpc_auth_property_iterator_next_type)(grpc_auth_property_iterator *it);
 extern grpc_auth_property_iterator_next_type grpc_auth_property_iterator_next_import;
 #define grpc_auth_property_iterator_next grpc_auth_property_iterator_next_import
diff --git a/src/ruby/ext/grpc/rb_signal.c b/src/ruby/ext/grpc/rb_signal.c
new file mode 100644
index 0000000..a9e5123
--- /dev/null
+++ b/src/ruby/ext/grpc/rb_signal.c
@@ -0,0 +1,70 @@
+/*
+ *
+ * Copyright 2016, 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 <ruby/ruby.h>
+#include <signal.h>
+#include <stdbool.h>
+
+#include <grpc/support/log.h>
+
+#include "rb_grpc.h"
+
+static void (*old_sigint_handler)(int);
+static void (*old_sigterm_handler)(int);
+
+static volatile bool signal_received = false;
+
+/* This has to be handled at the C level instead of Ruby, because Ruby signal
+ * handlers are constrained to run in the main interpreter thread. If that main
+ * thread is blocked on grpc_completion_queue_pluck, the signal handlers will
+ * never run */
+static void handle_signal(int signum) {
+  signal_received = true;
+  if (signum == SIGINT) {
+    old_sigint_handler(signum);
+  } else if (signum == SIGTERM) {
+    old_sigterm_handler(signum);
+  }
+}
+
+static VALUE grpc_rb_signal_received(VALUE self) {
+  (void)self;
+  return signal_received ? Qtrue : Qfalse;
+}
+
+void Init_grpc_signals() {
+  old_sigint_handler = signal(SIGINT, handle_signal);
+  old_sigterm_handler = signal(SIGTERM, handle_signal);
+  rb_define_singleton_method(grpc_rb_mGrpcCore, "signal_received?",
+                             grpc_rb_signal_received, 0);
+}
diff --git a/include/grpc/grpc_cronet.h b/src/ruby/ext/grpc/rb_signal.h
similarity index 82%
rename from include/grpc/grpc_cronet.h
rename to src/ruby/ext/grpc/rb_signal.h
index 295e0f5..07e49c0 100644
--- a/include/grpc/grpc_cronet.h
+++ b/src/ruby/ext/grpc/rb_signal.h
@@ -31,21 +31,9 @@
  *
  */
 
-#ifndef GRPC_GRPC_CRONET_H
-#define GRPC_GRPC_CRONET_H
+#ifndef GRPC_RB_SIGNAL_H_
+#define GRPC_RB_SIGNAL_H_
 
-#include <grpc/grpc.h>
+void Init_grpc_signals();
 
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-GRPCAPI grpc_channel *grpc_cronet_secure_channel_create(
-    void *engine, const char *target, const grpc_channel_args *args,
-    void *reserved);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif /* GRPC_GRPC_CRONET_H */
+#endif  /* GRPC_RB_SIGNAL_H_ */
diff --git a/src/ruby/lib/grpc.rb b/src/ruby/lib/grpc.rb
index 79fa705..7c9aae3 100644
--- a/src/ruby/lib/grpc.rb
+++ b/src/ruby/lib/grpc.rb
@@ -33,6 +33,7 @@
 require_relative 'grpc/grpc'
 require_relative 'grpc/logconfig'
 require_relative 'grpc/notifier'
+require_relative 'grpc/signals'
 require_relative 'grpc/version'
 require_relative 'grpc/core/time_consts'
 require_relative 'grpc/generic/active_call'
@@ -47,3 +48,5 @@
 ensure
   file.close
 end
+
+GRPC::Signals.wait_for_signals
diff --git a/src/ruby/lib/grpc/generic/active_call.rb b/src/ruby/lib/grpc/generic/active_call.rb
index ecf3cc3..fd20a86 100644
--- a/src/ruby/lib/grpc/generic/active_call.rb
+++ b/src/ruby/lib/grpc/generic/active_call.rb
@@ -28,7 +28,9 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 require 'forwardable'
+require 'weakref'
 require_relative 'bidi_call'
+require_relative '../signals'
 
 class Struct
   # BatchResult is the struct returned by calls to call#start_batch.
@@ -121,6 +123,10 @@
       @unmarshal = unmarshal
       @metadata_tag = metadata_tag
       @op_notifier = nil
+      weak_self = WeakRef.new(self)
+      remove_handler = GRPC::Signals.register_handler(&weak_self
+                                                        .method(:cancel))
+      ObjectSpace.define_finalizer(self, remove_handler)
     end
 
     # output_metadata are provides access to hash that can be used to
diff --git a/src/ruby/lib/grpc/generic/rpc_server.rb b/src/ruby/lib/grpc/generic/rpc_server.rb
index a0f4071..238aaa9 100644
--- a/src/ruby/lib/grpc/generic/rpc_server.rb
+++ b/src/ruby/lib/grpc/generic/rpc_server.rb
@@ -28,46 +28,13 @@
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 require_relative '../grpc'
+require_relative '../signals'
 require_relative 'active_call'
 require_relative 'service'
 require 'thread'
 
-# A global that contains signals the gRPC servers should respond to.
-$grpc_signals = []
-
 # GRPC contains the General RPC module.
 module GRPC
-  # Handles the signals in $grpc_signals.
-  #
-  # @return false if the server should exit, true if not.
-  def handle_signals
-    loop do
-      sig = $grpc_signals.shift
-      case sig
-      when 'INT'
-        return false
-      when 'TERM'
-        return false
-      when nil
-        return true
-      end
-    end
-    true
-  end
-  module_function :handle_signals
-
-  # Sets up a signal handler that adds signals to the signal handling global.
-  #
-  # Signal handlers should do as little as humanly possible.
-  # Here, they just add themselves to $grpc_signals
-  #
-  # RpcServer (and later other parts of gRPC) monitors the signals
-  # $grpc_signals in its own non-signal context.
-  def trap_signals
-    %w(INT TERM).each { |sig| trap(sig) { $grpc_signals << sig } }
-  end
-  module_function :trap_signals
-
   # Pool is a simple thread pool.
   class Pool
     # Default keep alive period is 1s
@@ -328,23 +295,6 @@
       end
     end
 
-    # Runs the server in its own thread, then waits for signal INT or TERM on
-    # the current thread to terminate it.
-    def run_till_terminated
-      GRPC.trap_signals
-      t = Thread.new do
-        run
-      end
-      t.abort_on_exception = true
-      wait_till_running
-      until running_state == :stopped
-        sleep SIGNAL_CHECK_PERIOD
-        break unless GRPC.handle_signals
-      end
-      stop
-      t.join
-    end
-
     # handle registration of classes
     #
     # service is either a class that includes GRPC::GenericService and whose
@@ -403,9 +353,14 @@
         transition_running_state(:running)
         @run_cond.broadcast
       end
+      remove_signal_handler = GRPC::Signals.register_handler { stop }
       loop_handle_server_calls
+      # Remove signal handler when server stops
+      remove_signal_handler.call
     end
 
+    alias_method :run_till_terminated, :run
+
     # Sends RESOURCE_EXHAUSTED if there are too many unprocessed jobs
     def available?(an_rpc)
       jobs_count, max = @pool.jobs_waiting, @max_waiting_requests
@@ -503,10 +458,8 @@
       unless cls.include?(GenericService)
         fail "#{cls} must 'include GenericService'"
       end
-      if cls.rpc_descs.size.zero?
-        fail "#{cls} should specify some rpc descriptions"
-      end
-      cls.assert_rpc_descs_have_methods
+      fail "#{cls} should specify some rpc descriptions" if
+        cls.rpc_descs.size.zero?
     end
 
     # This should be called while holding @run_mutex
diff --git a/src/ruby/lib/grpc/generic/service.rb b/src/ruby/lib/grpc/generic/service.rb
index 8e940b5..0a166e8 100644
--- a/src/ruby/lib/grpc/generic/service.rb
+++ b/src/ruby/lib/grpc/generic/service.rb
@@ -110,6 +110,9 @@
         rpc_descs[name] = RpcDesc.new(name, input, output,
                                       marshal_class_method,
                                       unmarshal_class_method)
+        define_method(name) do
+          fail GRPC::BadStatus, GRPC::Core::StatusCodes::UNIMPLEMENTED
+        end
       end
 
       def inherited(subclass)
@@ -199,19 +202,6 @@
           end
         end
       end
-
-      # Asserts that the appropriate methods are defined for each added rpc
-      # spec. Is intended to aid verifying that server classes are correctly
-      # implemented.
-      def assert_rpc_descs_have_methods
-        rpc_descs.each_pair do |m, spec|
-          mth_name = GenericService.underscore(m.to_s).to_sym
-          unless instance_methods.include?(mth_name)
-            fail "#{self} does not provide instance method '#{mth_name}'"
-          end
-          spec.assert_arity_matches(instance_method(mth_name))
-        end
-      end
     end
 
     def self.included(o)
diff --git a/src/ruby/lib/grpc/signals.rb b/src/ruby/lib/grpc/signals.rb
new file mode 100644
index 0000000..2ab85c8
--- /dev/null
+++ b/src/ruby/lib/grpc/signals.rb
@@ -0,0 +1,69 @@
+# Copyright 2016, 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.
+
+require 'thread'
+require_relative 'grpc'
+
+# GRPC contains the General RPC module.
+module GRPC
+  # Signals contains gRPC functions related to signal handling
+  module Signals
+    @interpreter_exiting = false
+    @signal_handlers = []
+    @handlers_mutex = Mutex.new
+
+    def register_handler(&handler)
+      @handlers_mutex.synchronize do
+        @signal_handlers.push(handler)
+        handler.call if @exit_signal_received
+      end
+      # Returns a function to remove the handler
+      lambda do
+        @handlers_mutex.synchronize { @signal_handlers.delete(handler) }
+      end
+    end
+    module_function :register_handler
+
+    def wait_for_signals
+      t = Thread.new do
+        sleep 0.1 until GRPC::Core.signal_received? || @interpreter_exiting
+        unless @interpreter_exiting
+          @handlers_mutex.synchronize do
+            @signal_handlers.each(&:call)
+          end
+        end
+      end
+      at_exit do
+        @interpreter_exiting = true
+        t.join
+      end
+    end
+    module_function :wait_for_signals
+  end
+end
diff --git a/src/ruby/spec/generic/rpc_server_spec.rb b/src/ruby/spec/generic/rpc_server_spec.rb
index e688057..2a42736 100644
--- a/src/ruby/spec/generic/rpc_server_spec.rb
+++ b/src/ruby/spec/generic/rpc_server_spec.rb
@@ -308,10 +308,6 @@
       expect { @srv.handle(EmptyService) }.to raise_error
     end
 
-    it 'raises if the service does not define its rpc methods' do
-      expect { @srv.handle(NoRpcImplementation) }.to raise_error
-    end
-
     it 'raises if a handler method is already registered' do
       @srv.handle(EchoService)
       expect { r.handle(EchoService) }.to raise_error
@@ -349,6 +345,25 @@
         t.join
       end
 
+      it 'should return UNIMPLEMENTED on unimplemented methods', server: true do
+        @srv.handle(NoRpcImplementation)
+        t = Thread.new { @srv.run }
+        @srv.wait_till_running
+        req = EchoMsg.new
+        blk = proc do
+          cq = GRPC::Core::CompletionQueue.new
+          stub = GRPC::ClientStub.new(@host, cq, :this_channel_is_insecure,
+                                      **client_opts)
+          stub.request_response('/an_rpc', req, marshal, unmarshal)
+        end
+        expect(&blk).to raise_error do |error|
+          expect(error).to be_a(GRPC::BadStatus)
+          expect(error.code).to be(GRPC::Core::StatusCodes::UNIMPLEMENTED)
+        end
+        @srv.stop
+        t.join
+      end
+
       it 'should handle multiple sequential requests', server: true do
         @srv.handle(EchoService)
         t = Thread.new { @srv.run }
diff --git a/src/ruby/spec/generic/service_spec.rb b/src/ruby/spec/generic/service_spec.rb
index 5e7b6c7..76034e4 100644
--- a/src/ruby/spec/generic/service_spec.rb
+++ b/src/ruby/spec/generic/service_spec.rb
@@ -273,73 +273,4 @@
       end
     end
   end
-
-  describe '#assert_rpc_descs_have_methods' do
-    it 'fails if there is no instance method for an rpc descriptor' do
-      c1 = Class.new do
-        include GenericService
-        rpc :AnRpc, GoodMsg, GoodMsg
-      end
-      expect { c1.assert_rpc_descs_have_methods }.to raise_error
-
-      c2 = Class.new do
-        include GenericService
-        rpc :AnRpc, GoodMsg, GoodMsg
-        rpc :AnotherRpc, GoodMsg, GoodMsg
-
-        def an_rpc
-        end
-      end
-      expect { c2.assert_rpc_descs_have_methods }.to raise_error
-    end
-
-    it 'passes if there are corresponding methods for each descriptor' do
-      c = Class.new do
-        include GenericService
-        rpc :AnRpc, GoodMsg, GoodMsg
-        rpc :AServerStreamer, GoodMsg, stream(GoodMsg)
-        rpc :AClientStreamer, stream(GoodMsg), GoodMsg
-        rpc :ABidiStreamer, stream(GoodMsg), stream(GoodMsg)
-
-        def an_rpc(_req, _call)
-        end
-
-        def a_server_streamer(_req, _call)
-        end
-
-        def a_client_streamer(_call)
-        end
-
-        def a_bidi_streamer(_call)
-        end
-      end
-      expect { c.assert_rpc_descs_have_methods }.to_not raise_error
-    end
-
-    it 'passes for subclasses of that include GenericService' do
-      base = Class.new do
-        include GenericService
-        rpc :AnRpc, GoodMsg, GoodMsg
-
-        def an_rpc(_req, _call)
-        end
-      end
-      c = Class.new(base)
-      expect { c.assert_rpc_descs_have_methods }.to_not raise_error
-      expect(c.include?(GenericService)).to be(true)
-    end
-
-    it 'passes if subclasses define the rpc methods' do
-      base = Class.new do
-        include GenericService
-        rpc :AnRpc, GoodMsg, GoodMsg
-      end
-      c = Class.new(base) do
-        def an_rpc(_req, _call)
-        end
-      end
-      expect { c.assert_rpc_descs_have_methods }.to_not raise_error
-      expect(c.include?(GenericService)).to be(true)
-    end
-  end
 end
diff --git a/test/core/surface/public_headers_must_be_c89.c b/test/core/surface/public_headers_must_be_c89.c
index fd6ff2c..3eeb55d 100644
--- a/test/core/surface/public_headers_must_be_c89.c
+++ b/test/core/surface/public_headers_must_be_c89.c
@@ -36,7 +36,6 @@
 #include <grpc/census.h>
 #include <grpc/compression.h>
 #include <grpc/grpc.h>
-#include <grpc/grpc_cronet.h>
 #include <grpc/grpc_security.h>
 #include <grpc/grpc_security_constants.h>
 #include <grpc/impl/codegen/alloc.h>
diff --git a/third_party/objective_c/Cronet/cronet_c_for_grpc.h b/third_party/objective_c/Cronet/cronet_c_for_grpc.h
deleted file mode 100644
index 15a511a..0000000
--- a/third_party/objective_c/Cronet/cronet_c_for_grpc.h
+++ /dev/null
@@ -1,202 +0,0 @@
-// Copyright 2016 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef COMPONENTS_CRONET_IOS_CRONET_C_FOR_GRPC_H_
-#define COMPONENTS_CRONET_IOS_CRONET_C_FOR_GRPC_H_
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include <stddef.h>
-
-/* Cronet Engine API. */
-
-/* Opaque object representing Cronet Engine. Created and configured outside
- * of this API to facilitate sharing with other components */
-typedef struct cronet_engine { void* obj; } cronet_engine;
-
-void cronet_engine_add_quic_hint(cronet_engine* engine,
-                                 const char* host,
-                                 int port,
-                                 int alternate_port);
-
-/* Cronet Bidirectional Stream API */
-
-/* Opaque object representing Cronet Bidirectional Stream. */
-typedef struct cronet_bidirectional_stream {
-  void* obj;
-  void* annotation;
-} cronet_bidirectional_stream;
-
-/* A single request or response header element. */
-typedef struct cronet_bidirectional_stream_header {
-  const char* key;
-  const char* value;
-} cronet_bidirectional_stream_header;
-
-/* Array of request or response headers or trailers. */
-typedef struct cronet_bidirectional_stream_header_array {
-  size_t count;
-  size_t capacity;
-  cronet_bidirectional_stream_header* headers;
-} cronet_bidirectional_stream_header_array;
-
-/* Set of callbacks used to receive callbacks from bidirectional stream. */
-typedef struct cronet_bidirectional_stream_callback {
-  /* Invoked when request headers are sent. Indicates that stream has initiated
-   * the request. Consumer may call cronet_bidirectional_stream_write() to start
-   * writing data.
-   */
-  void (*on_request_headers_sent)(cronet_bidirectional_stream* stream);
-
-  /* Invoked when initial response headers are received.
-   * Consumer must call cronet_bidirectional_stream_read() to start reading.
-   * Consumer may call cronet_bidirectional_stream_write() to start writing or
-   * close the stream. Contents of |headers| is valid for duration of the call.
-   */
-  void (*on_response_headers_received)(
-      cronet_bidirectional_stream* stream,
-      const cronet_bidirectional_stream_header_array* headers,
-      const char* negotiated_protocol);
-
-  /* Invoked when data is read into the buffer passed to
-   * cronet_bidirectional_stream_read(). Only part of the buffer may be
-   * populated. To continue reading, call cronet_bidirectional_stream_read().
-   * It may be invoked after on_response_trailers_received()}, if there was
-   * pending read data before trailers were received.
-   *
-   * If count is 0, it means the remote side has signaled that it will send no
-   * more data; future calls to cronet_bidirectional_stream_read() will result
-   * in the on_data_read() callback or on_succeded() callback if
-   * cronet_bidirectional_stream_write() was invoked with end_of_stream set to
-   * true.
-   */
-  void (*on_read_completed)(cronet_bidirectional_stream* stream,
-                            char* data,
-                            int count);
-
-  /**
-   * Invoked when all data passed to cronet_bidirectional_stream_write() is
-   * sent.
-   * To continue writing, call cronet_bidirectional_stream_write().
-   */
-  void (*on_write_completed)(cronet_bidirectional_stream* stream,
-                             const char* data);
-
-  /* Invoked when trailers are received before closing the stream. Only invoked
-   * when server sends trailers, which it may not. May be invoked while there is
-   * read data remaining in local buffer. Contents of |trailers| is valid for
-   * duration of the call.
-   */
-  void (*on_response_trailers_received)(
-      cronet_bidirectional_stream* stream,
-      const cronet_bidirectional_stream_header_array* trailers);
-
-  /**
-   * Invoked when there is no data to be read or written and the stream is
-   * closed successfully remotely and locally. Once invoked, no further callback
-   * methods will be invoked.
-   */
-  void (*on_succeded)(cronet_bidirectional_stream* stream);
-
-  /**
-   * Invoked if the stream failed for any reason after
-   * cronet_bidirectional_stream_start(). HTTP/2 error codes are
-   * mapped to chrome net error codes. Once invoked, no further callback methods
-   * will be invoked.
-   */
-  void (*on_failed)(cronet_bidirectional_stream* stream, int net_error);
-
-  /**
-   * Invoked if the stream was canceled via
-   * cronet_bidirectional_stream_cancel(). Once invoked, no further callback
-   * methods will be invoked.
-   */
-  void (*on_canceled)(cronet_bidirectional_stream* stream);
-} cronet_bidirectional_stream_callback;
-
-/* Create a new stream object that uses |engine| and |callback|. All stream
- * tasks are performed asynchronously on the |engine| network thread. |callback|
- * methods are invoked synchronously on the |engine| network thread, but must
- * not run tasks on the current thread to prevent blocking networking operations
- * and causing exceptions during shutdown. The |annotation| is stored in
- * bidirectional stream for arbitrary use by application.
- *
- * Returned |cronet_bidirectional_stream*| is owned by the caller, and must be
- * destroyed using |cronet_bidirectional_stream_destroy|.
- *
- * Both |calback| and |engine| must remain valid until stream is destroyed.
- */
-cronet_bidirectional_stream* cronet_bidirectional_stream_create(
-    cronet_engine* engine,
-    void* annotation,
-    cronet_bidirectional_stream_callback* callback);
-
-/* TBD: The following methods return int. Should it be a custom type? */
-
-/* Destroy stream object. Destroy could be called from any thread, including
- * network thread, but is posted, so |stream| is valid until calling task is
- * complete.
- */
-int cronet_bidirectional_stream_destroy(cronet_bidirectional_stream* stream);
-
-/* Start the stream by sending request to |url| using |method| and |headers|. If
- * |end_of_stream| is true, then no data is expected to be written.
- */
-int cronet_bidirectional_stream_start(
-    cronet_bidirectional_stream* stream,
-    const char* url,
-    int priority,
-    const char* method,
-    const cronet_bidirectional_stream_header_array* headers,
-    bool end_of_stream);
-
-/* Read response data into |buffer| of |capacity| length. Must only be called at
- * most once in response to each invocation of the
- * on_response_headers_received() and on_read_completed() methods of the
- * cronet_bidirectional_stream_callback.
- * Each call will result in an invocation of one of the callback's
- * on_read_completed  method if data is read, its on_succeeded() method if
- * the stream is closed, or its on_failed() method if there's an error.
- */
-int cronet_bidirectional_stream_read(cronet_bidirectional_stream* stream,
-                                     char* buffer,
-                                     int capacity);
-
-/* Read response data into |buffer| of |capacity| length. Must only be called at
- * most once in response to each invocation of the
- * on_response_headers_received() and on_read_completed() methods of the
- * cronet_bidirectional_stream_callback.
- * Each call will result in an invocation of one of the callback's
- * on_read_completed  method if data is read, its on_succeeded() method if
- * the stream is closed, or its on_failed() method if there's an error.
- */
-int cronet_bidirectional_stream_write(cronet_bidirectional_stream* stream,
-                                      const char* buffer,
-                                      int count,
-                                      bool end_of_stream);
-
-/* Cancels the stream. Can be called at any time after
- * cronet_bidirectional_stream_start(). The on_canceled() method of
- * cronet_bidirectional_stream_callback will be invoked when cancelation
- * is complete and no further callback methods will be invoked. If the
- * stream has completed or has not started, calling
- * cronet_bidirectional_stream_cancel() has no effect and on_canceled() will not
- * be  invoked. At most one callback method may be invoked after
- * cronet_bidirectional_stream_cancel() has completed.
- */
-int cronet_bidirectional_stream_cancel(cronet_bidirectional_stream* stream);
-
-/* Returns true if the |stream| was successfully started and is now done
- * (succeeded, canceled, or failed).
- * Returns false if the |stream| stream is not yet started or is in progress.
- */
-bool cronet_bidirectional_stream_is_done(cronet_bidirectional_stream* stream);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif  // COMPONENTS_CRONET_IOS_CRONET_C_FOR_GRPC_H_
diff --git a/tools/distrib/python/grpcio_tools/README.rst b/tools/distrib/python/grpcio_tools/README.rst
index 3be564e..10d2fe8 100644
--- a/tools/distrib/python/grpcio_tools/README.rst
+++ b/tools/distrib/python/grpcio_tools/README.rst
@@ -46,7 +46,9 @@
 ~~~~~~~~~~~
 
 Building from source requires that you have the Python headers (usually a
-package named :code:`python-dev`) and Cython installed.
+package named :code:`python-dev`) and Cython installed. It further requires a
+GCC-like compiler to go smoothly; you can probably get it to work without
+GCC-like stuff, but you may end up having a bad time.
 
 ::
 
diff --git a/tools/distrib/python/grpcio_tools/setup.py b/tools/distrib/python/grpcio_tools/setup.py
index 1a77c43..576f7ae 100644
--- a/tools/distrib/python/grpcio_tools/setup.py
+++ b/tools/distrib/python/grpcio_tools/setup.py
@@ -30,6 +30,7 @@
 from distutils import extension
 import os
 import os.path
+import shlex
 import sys
 
 import setuptools
@@ -40,6 +41,16 @@
 os.chdir(os.path.dirname(os.path.abspath(__file__)))
 sys.path.insert(0, os.path.abspath('.'))
 
+# There are some situations (like on Windows) where CC, CFLAGS, and LDFLAGS are
+# entirely ignored/dropped/forgotten by distutils and its Cygwin/MinGW support.
+# We use these environment variables to thus get around that without locking
+# ourselves in w.r.t. the multitude of operating systems this ought to build on.
+# By default we assume a GCC-like compiler.
+EXTRA_COMPILE_ARGS = shlex.split(os.environ.get('GRPC_PYTHON_CFLAGS',
+                                                '-frtti -std=c++11'))
+EXTRA_LINK_ARGS = shlex.split(os.environ.get('GRPC_PYTHON_LDFLAGS',
+                                             '-lpthread'))
+
 import protoc_lib_deps
 import grpc_version
 
@@ -60,7 +71,8 @@
       ],
       language='c++',
       define_macros=[('HAVE_PTHREAD', 1)],
-      extra_compile_args=['-lpthread', '-frtti', '-std=c++11'],
+      extra_compile_args=EXTRA_COMPILE_ARGS,
+      extra_link_args=EXTRA_LINK_ARGS,
   )
   return plugin_ext
 
@@ -71,7 +83,7 @@
 setuptools.setup(
   name='grpcio_tools',
   version=grpc_version.VERSION,
-  license='',
+  license='3-clause BSD',
   ext_modules=maybe_cythonize([
       protoc_ext_module(),
   ]),
diff --git a/tools/doxygen/Doxyfile.core b/tools/doxygen/Doxyfile.core
index d1259e7..8b13e6e 100644
--- a/tools/doxygen/Doxyfile.core
+++ b/tools/doxygen/Doxyfile.core
@@ -786,7 +786,6 @@
 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 \
 include/grpc/census.h \
diff --git a/tools/doxygen/Doxyfile.core.internal b/tools/doxygen/Doxyfile.core.internal
index 6b7a8be..b3b3477 100644
--- a/tools/doxygen/Doxyfile.core.internal
+++ b/tools/doxygen/Doxyfile.core.internal
@@ -786,7 +786,6 @@
 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 \
 include/grpc/census.h \
@@ -914,42 +913,6 @@
 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 \
-include/grpc/byte_buffer.h \
-include/grpc/grpc.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/byte_buffer.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/log.h \
-include/grpc/impl/codegen/port_platform.h \
-include/grpc/impl/codegen/propagation_bits.h \
-include/grpc/impl/codegen/slice.h \
-include/grpc/impl/codegen/slice_buffer.h \
-include/grpc/impl/codegen/status.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/status.h \
-include/grpc/support/alloc.h \
-include/grpc/support/atm.h \
-include/grpc/support/host_port.h \
-include/grpc/support/log.h \
-include/grpc/support/port_platform.h \
-include/grpc/support/slice.h \
-include/grpc/support/slice_buffer.h \
-include/grpc/support/string_util.h \
-include/grpc/support/sync.h \
-include/grpc/support/time.h \
-include/grpc/support/useful.h \
-src/core/lib/support/string.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/v0/load_balancer.pb.h \
 third_party/nanopb/pb.h \
@@ -1108,9 +1071,6 @@
 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/v0/load_balancer.pb.c \
 third_party/nanopb/pb_common.c \
diff --git a/tools/run_tests/build_artifact_python.bat b/tools/run_tests/build_artifact_python.bat
index 342469b..fea0275 100644
--- a/tools/run_tests/build_artifact_python.bat
+++ b/tools/run_tests/build_artifact_python.bat
@@ -41,7 +41,7 @@
 copy /Y vsprojects\x64\Release\grpc_dll.dll src\python\grpcio\grpc\_cython\_windows\grpc_c.64.python || goto :error
 
 
-set PATH=C:\%1;C:\%1\scripts;%PATH%
+set PATH=C:\%1;C:\%1\scripts;C:\msys64\mingw%2\bin;%PATH%
 
 pip install --upgrade six
 pip install --upgrade setuptools
@@ -55,19 +55,28 @@
 python setup.py bdist_wheel
 
 @rem Build gRPC Python tools
-set PATH=C:\msys64\mingw%2\bin;%PATH%
-set CC=C:\msys64\mingw%2\bin\g++.exe
-set CFLAGS=-fno-wrapv
+@rem
+@rem Because this is windows and *everything seems to hate Windows* we have to
+@rem set all of these flags ourselves because Python won't help us (see the
+@rem setup.py of the grpcio_tools project).
+set GRPC_PYTHON_CFLAGS=-fno-wrapv -frtti -std=c++11
+@rem Further confusing things, MSYS2's mingw64 tries to dynamically link
+@rem libgcc, libstdc++, and winpthreads. We have to override this or our
+@rem extensions end up linking to MSYS2 DLLs, which the normal Python on
+@rem Windows user won't have... and ON TOP OF THIS, there's MinGW's GCC default
+@rem behavior of linking msvcrt.dll as the C runtime library, which we need to
+@rem override so that Python's distutils doesn't link us against multiple C
+@rem runtimes.
+python -c "from distutils.cygwinccompiler import get_msvcr; print(get_msvcr()[0])" > temp.txt
+set /p PYTHON_MSVCR=<temp.txt
+set GRPC_PYTHON_LDFLAGS=-static-libgcc -static-libstdc++ -mcrtdll=%PYTHON_MSVCR% -static -lpthread
 python tools\distrib\python\make_grpcio_tools.py
-@rem The following commands *must* be run with the right version of python
-@rem otherwise the build get SNAFU'd (so we use the .exe suffix to invoke the python
-@rem we set in the %PATH% variable above).
 if %2 == 32 (
-  python.exe tools\distrib\python\grpcio_tools\setup.py build_ext -c mingw32
+  python tools\distrib\python\grpcio_tools\setup.py build_ext -c mingw32
 ) else (
-  python.exe tools\distrib\python\grpcio_tools\setup.py build_ext -c mingw32 -DMS_WIN64
+  python tools\distrib\python\grpcio_tools\setup.py build_ext -c mingw32 -DMS_WIN64
 )
-python.exe tools\distrib\python\grpcio_tools\setup.py bdist_wheel
+python tools\distrib\python\grpcio_tools\setup.py bdist_wheel
 
 mkdir artifacts
 xcopy /Y /I /S dist\* artifacts\ || goto :error
diff --git a/tools/run_tests/sources_and_headers.json b/tools/run_tests/sources_and_headers.json
index 8c67d2f..3b3a49a 100644
--- a/tools/run_tests/sources_and_headers.json
+++ b/tools/run_tests/sources_and_headers.json
@@ -4140,8 +4140,7 @@
       "grpc_transport_chttp2_client_insecure", 
       "grpc_transport_chttp2_client_secure", 
       "grpc_transport_chttp2_server_insecure", 
-      "grpc_transport_chttp2_server_secure", 
-      "grpc_transport_cronet_client_secure"
+      "grpc_transport_chttp2_server_secure"
     ], 
     "headers": [], 
     "language": "c", 
@@ -6015,7 +6014,6 @@
       "tsi"
     ], 
     "headers": [
-      "include/grpc/grpc_cronet.h", 
       "include/grpc/grpc_security.h", 
       "include/grpc/grpc_security_constants.h", 
       "src/core/lib/security/auth_filters.h", 
@@ -6031,7 +6029,6 @@
     "language": "c", 
     "name": "grpc_secure", 
     "src": [
-      "include/grpc/grpc_cronet.h", 
       "include/grpc/grpc_security.h", 
       "include/grpc/grpc_security_constants.h", 
       "src/core/lib/http/httpcli_security_connector.c", 
@@ -6270,121 +6267,6 @@
   {
     "deps": [], 
     "headers": [
-      "include/grpc/byte_buffer.h", 
-      "include/grpc/grpc.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/byte_buffer.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/log.h", 
-      "include/grpc/impl/codegen/port_platform.h", 
-      "include/grpc/impl/codegen/propagation_bits.h", 
-      "include/grpc/impl/codegen/slice.h", 
-      "include/grpc/impl/codegen/slice_buffer.h", 
-      "include/grpc/impl/codegen/status.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/status.h", 
-      "include/grpc/support/alloc.h", 
-      "include/grpc/support/atm.h", 
-      "include/grpc/support/host_port.h", 
-      "include/grpc/support/log.h", 
-      "include/grpc/support/port_platform.h", 
-      "include/grpc/support/slice.h", 
-      "include/grpc/support/slice_buffer.h", 
-      "include/grpc/support/string_util.h", 
-      "include/grpc/support/sync.h", 
-      "include/grpc/support/time.h", 
-      "include/grpc/support/useful.h", 
-      "src/core/ext/transport/chttp2/transport/incoming_metadata.h", 
-      "src/core/lib/channel/channel_stack.h", 
-      "src/core/lib/channel/context.h", 
-      "src/core/lib/debug/trace.h", 
-      "src/core/lib/iomgr/closure.h", 
-      "src/core/lib/iomgr/exec_ctx.h", 
-      "src/core/lib/iomgr/pollset.h", 
-      "src/core/lib/iomgr/pollset_set.h", 
-      "src/core/lib/support/string.h", 
-      "src/core/lib/surface/channel.h", 
-      "src/core/lib/surface/channel_stack_type.h", 
-      "src/core/lib/transport/byte_stream.h", 
-      "src/core/lib/transport/metadata.h", 
-      "src/core/lib/transport/metadata_batch.h", 
-      "src/core/lib/transport/transport.h", 
-      "src/core/lib/transport/transport_impl.h", 
-      "third_party/objective_c/Cronet/cronet_c_for_grpc.h"
-    ], 
-    "language": "c", 
-    "name": "grpc_transport_cronet_client_secure", 
-    "src": [
-      "include/grpc/byte_buffer.h", 
-      "include/grpc/grpc.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/byte_buffer.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/log.h", 
-      "include/grpc/impl/codegen/port_platform.h", 
-      "include/grpc/impl/codegen/propagation_bits.h", 
-      "include/grpc/impl/codegen/slice.h", 
-      "include/grpc/impl/codegen/slice_buffer.h", 
-      "include/grpc/impl/codegen/status.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/status.h", 
-      "include/grpc/support/alloc.h", 
-      "include/grpc/support/atm.h", 
-      "include/grpc/support/host_port.h", 
-      "include/grpc/support/log.h", 
-      "include/grpc/support/port_platform.h", 
-      "include/grpc/support/slice.h", 
-      "include/grpc/support/slice_buffer.h", 
-      "include/grpc/support/string_util.h", 
-      "include/grpc/support/sync.h", 
-      "include/grpc/support/time.h", 
-      "include/grpc/support/useful.h", 
-      "src/core/ext/transport/chttp2/transport/incoming_metadata.h", 
-      "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/lib/channel/channel_stack.h", 
-      "src/core/lib/channel/context.h", 
-      "src/core/lib/debug/trace.h", 
-      "src/core/lib/iomgr/closure.h", 
-      "src/core/lib/iomgr/exec_ctx.h", 
-      "src/core/lib/iomgr/pollset.h", 
-      "src/core/lib/iomgr/pollset_set.h", 
-      "src/core/lib/support/string.h", 
-      "src/core/lib/surface/channel.h", 
-      "src/core/lib/surface/channel_stack_type.h", 
-      "src/core/lib/transport/byte_stream.h", 
-      "src/core/lib/transport/metadata.h", 
-      "src/core/lib/transport/metadata_batch.h", 
-      "src/core/lib/transport/transport.h", 
-      "src/core/lib/transport/transport_impl.h"
-    ], 
-    "third_party": false, 
-    "type": "filegroup"
-  }, 
-  {
-    "deps": [], 
-    "headers": [
       "third_party/nanopb/pb.h", 
       "third_party/nanopb/pb_common.h", 
       "third_party/nanopb/pb_decode.h", 
diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj b/vsprojects/vcxproj/grpc/grpc.vcxproj
index 7f0e5a8..03f4eaa 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj
@@ -293,7 +293,6 @@
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_posix.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_win32.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\time.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\grpc_cronet.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\grpc_security.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\grpc_security_constants.h" />
     <ClInclude Include="$(SolutionDir)\..\include\grpc\census.h" />
@@ -423,42 +422,6 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_config\subchannel_call_holder.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_config\subchannel_index.h" />
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_config\uri_parser.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\byte_buffer.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\grpc.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\alloc.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_gcc_atomic.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_gcc_sync.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_win32.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\byte_buffer.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\compression_types.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\connectivity_state.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\grpc_types.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\log.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\port_platform.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\propagation_bits.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\slice.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\slice_buffer.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\status.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_generic.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_posix.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_win32.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\time.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\status.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\alloc.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\atm.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\host_port.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\log.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\port_platform.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\slice.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\slice_buffer.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\string_util.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\sync.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\time.h" />
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\useful.h" />
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\string.h" />
-    <ClInclude Include="$(SolutionDir)\..\third_party\objective_c\Cronet\cronet_c_for_grpc.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\v0\load_balancer.pb.h" />
     <ClInclude Include="$(SolutionDir)\..\third_party\nanopb\pb.h" />
@@ -765,12 +728,6 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\client\insecure\channel_create.c">
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\transport\cronet\client\secure\cronet_channel_create.c">
-    </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\transport\cronet\transport\cronet_api_dummy.c">
-    </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\transport\cronet\transport\cronet_transport.c">
-    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\load_balancer_api.c">
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\proto\grpc\lb\v0\load_balancer.pb.c">
diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
index 6d1d69a..4617e3d 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
@@ -439,15 +439,6 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\ext\transport\chttp2\client\insecure\channel_create.c">
       <Filter>src\core\ext\transport\chttp2\client\insecure</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\transport\cronet\client\secure\cronet_channel_create.c">
-      <Filter>src\core\ext\transport\cronet\client\secure</Filter>
-    </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\transport\cronet\transport\cronet_api_dummy.c">
-      <Filter>src\core\ext\transport\cronet\transport</Filter>
-    </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\core\ext\transport\cronet\transport\cronet_transport.c">
-      <Filter>src\core\ext\transport\cronet\transport</Filter>
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     <ClCompile Include="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\load_balancer_api.c">
       <Filter>src\core\ext\lb_policy\grpclb</Filter>
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@@ -585,9 +576,6 @@
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-      <Filter>include\grpc</Filter>
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-    <ClInclude Include="$(SolutionDir)\..\include\grpc\grpc.h">
-      <Filter>include\grpc</Filter>
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-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\alloc.h">
-      <Filter>include\grpc\impl\codegen</Filter>
-    </ClInclude>
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-      <Filter>include\grpc\impl\codegen</Filter>
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-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_gcc_atomic.h">
-      <Filter>include\grpc\impl\codegen</Filter>
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-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_gcc_sync.h">
-      <Filter>include\grpc\impl\codegen</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_win32.h">
-      <Filter>include\grpc\impl\codegen</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\byte_buffer.h">
-      <Filter>include\grpc\impl\codegen</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\compression_types.h">
-      <Filter>include\grpc\impl\codegen</Filter>
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-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\connectivity_state.h">
-      <Filter>include\grpc\impl\codegen</Filter>
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-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\grpc_types.h">
-      <Filter>include\grpc\impl\codegen</Filter>
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-      <Filter>include\grpc\impl\codegen</Filter>
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-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_win32.h">
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@@ -1130,9 +1010,6 @@
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