diff --git a/BUILD b/BUILD
index 1f6fc08cbad..467ed456a29 100644
--- a/BUILD
+++ b/BUILD
@@ -285,41 +285,6 @@ cc_library(
     "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/v1/load_balancer.pb.h",
@@ -1675,41 +1640,6 @@ objc_library(
     "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/v1/load_balancer.pb.h",
diff --git a/build.yaml b/build.yaml
index aeb31003e72..93b81060ea2 100644
--- a/build.yaml
+++ b/build.yaml
@@ -550,61 +550,14 @@ filegroups:
   - 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
+  filegroups:
+  - grpc_base
+  - grpc_transport_chttp2
 - name: nanopb
   headers:
   - third_party/nanopb/pb.h
diff --git a/gRPC.podspec b/gRPC.podspec
index 1a0ddc0d553..6b8f4779f7a 100644
--- a/gRPC.podspec
+++ b/gRPC.podspec
@@ -288,41 +288,6 @@ Pod::Spec.new do |s|
                       '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/v1/load_balancer.pb.h',
@@ -671,41 +636,6 @@ Pod::Spec.new do |s|
                               '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/v1/load_balancer.pb.h',
diff --git a/grpc.gemspec b/grpc.gemspec
index 2d5045faba5..d84f10a77f1 100755
--- a/grpc.gemspec
+++ b/grpc.gemspec
@@ -297,41 +297,6 @@ Gem::Specification.new do |s|
   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/v1/load_balancer.pb.h )
diff --git a/package.xml b/package.xml
index cf11ea8f074..cbdadb2d283 100644
--- a/package.xml
+++ b/package.xml
@@ -304,41 +304,6 @@
     <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/v1/load_balancer.pb.h" role="src" />
diff --git a/tools/doxygen/Doxyfile.core.internal b/tools/doxygen/Doxyfile.core.internal
index ac919def655..bcaaaf8e0b6 100644
--- a/tools/doxygen/Doxyfile.core.internal
+++ b/tools/doxygen/Doxyfile.core.internal
@@ -914,41 +914,6 @@ src/core/ext/client_config/subchannel.h \
 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/v1/load_balancer.pb.h \
diff --git a/tools/run_tests/sources_and_headers.json b/tools/run_tests/sources_and_headers.json
index 64358400fc9..8d0345d1f6d 100644
--- a/tools/run_tests/sources_and_headers.json
+++ b/tools/run_tests/sources_and_headers.json
@@ -6285,116 +6285,19 @@
     "type": "filegroup"
   }, 
   {
-    "deps": [], 
+    "deps": [
+      "grpc_base", 
+      "grpc_transport_chttp2"
+    ], 
     "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"
+      "src/core/ext/transport/cronet/transport/cronet_transport.c"
     ], 
     "third_party": false, 
     "type": "filegroup"
diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj b/vsprojects/vcxproj/grpc/grpc.vcxproj
index 932c2699f4f..75c1288c896 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj
@@ -423,41 +423,6 @@
     <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="$(SolutionDir)\..\src\core\ext\lb_policy\grpclb\proto\grpc\lb\v1\load_balancer.pb.h" />
diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
index 2dc192ed50a..d576b14877f 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
@@ -971,111 +971,6 @@
     <ClInclude Include="$(SolutionDir)\..\src\core\ext\client_config\uri_parser.h">
       <Filter>src\core\ext\client_config</Filter>
     </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\byte_buffer.h">
-      <Filter>include\grpc</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\grpc.h">
-      <Filter>include\grpc</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\alloc.h">
-      <Filter>include\grpc\impl\codegen</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm.h">
-      <Filter>include\grpc\impl\codegen</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\atm_gcc_atomic.h">
-      <Filter>include\grpc\impl\codegen</Filter>
-    </ClInclude>
-    <ClInclude Include="$(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="$(SolutionDir)\..\include\grpc\impl\codegen\compression_types.h">
-      <Filter>include\grpc\impl\codegen</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\connectivity_state.h">
-      <Filter>include\grpc\impl\codegen</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\grpc_types.h">
-      <Filter>include\grpc\impl\codegen</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\log.h">
-      <Filter>include\grpc\impl\codegen</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\port_platform.h">
-      <Filter>include\grpc\impl\codegen</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\propagation_bits.h">
-      <Filter>include\grpc\impl\codegen</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\slice.h">
-      <Filter>include\grpc\impl\codegen</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\slice_buffer.h">
-      <Filter>include\grpc\impl\codegen</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\status.h">
-      <Filter>include\grpc\impl\codegen</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync.h">
-      <Filter>include\grpc\impl\codegen</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_generic.h">
-      <Filter>include\grpc\impl\codegen</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_posix.h">
-      <Filter>include\grpc\impl\codegen</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\sync_win32.h">
-      <Filter>include\grpc\impl\codegen</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\impl\codegen\time.h">
-      <Filter>include\grpc\impl\codegen</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\status.h">
-      <Filter>include\grpc</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\alloc.h">
-      <Filter>include\grpc\support</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\atm.h">
-      <Filter>include\grpc\support</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\host_port.h">
-      <Filter>include\grpc\support</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\log.h">
-      <Filter>include\grpc\support</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\port_platform.h">
-      <Filter>include\grpc\support</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\slice.h">
-      <Filter>include\grpc\support</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\slice_buffer.h">
-      <Filter>include\grpc\support</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\string_util.h">
-      <Filter>include\grpc\support</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\sync.h">
-      <Filter>include\grpc\support</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\time.h">
-      <Filter>include\grpc\support</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\include\grpc\support\useful.h">
-      <Filter>include\grpc\support</Filter>
-    </ClInclude>
-    <ClInclude Include="$(SolutionDir)\..\src\core\lib\support\string.h">
-      <Filter>src\core\lib\support</Filter>
-    </ClInclude>
     <ClInclude Include="$(SolutionDir)\..\third_party\objective_c\Cronet\cronet_c_for_grpc.h">
       <Filter>third_party\objective_c\Cronet</Filter>
     </ClInclude>
@@ -1130,9 +1025,6 @@
     <Filter Include="include\grpc\impl\codegen">
       <UniqueIdentifier>{def748f5-ed2a-a9bb-40d9-c31d00f0e13b}</UniqueIdentifier>
     </Filter>
-    <Filter Include="include\grpc\support">
-      <UniqueIdentifier>{31de82ea-dc6c-73fb-a640-979b8a7b240c}</UniqueIdentifier>
-    </Filter>
     <Filter Include="src">
       <UniqueIdentifier>{d538af37-07b2-062b-fa2a-d9f882cb2737}</UniqueIdentifier>
     </Filter>
@@ -1250,9 +1142,6 @@
     <Filter Include="src\core\lib\security">
       <UniqueIdentifier>{c4661d64-349f-01c1-1ba8-0602f9047595}</UniqueIdentifier>
     </Filter>
-    <Filter Include="src\core\lib\support">
-      <UniqueIdentifier>{27f30339-d694-40f5-db07-4b89b9aeea73}</UniqueIdentifier>
-    </Filter>
     <Filter Include="src\core\lib\surface">
       <UniqueIdentifier>{a21971fb-304f-da08-b1b2-7bd8df8ac373}</UniqueIdentifier>
     </Filter>