Update from https://crrev.com/307664

net/net.gypi

Index: net/net.gypi
diff --git a/net/net.gypi b/net/net.gypi
index f9f6d23ed17b0a1c8fd5392dc0edf1316a74ba2c..7d7d2f025a551bca6d4d68710822443828bad05e 100644
--- a/net/net.gypi
+++ b/net/net.gypi
@@ -266,6 +266,8 @@
       'base/network_config_watcher_mac.h',
       'base/network_delegate.cc',
       'base/network_delegate.h',
+      'base/network_delegate_impl.cc',
+      'base/network_delegate_impl.h',
       'base/nss_memio.c',
       'base/nss_memio.h',
       'base/platform_mime_util.h',
@@ -308,6 +310,8 @@
       'base/winsock_init.h',
       'base/winsock_util.cc',
       'base/winsock_util.h',
+      'base/layered_network_delegate.cc',
+      'base/layered_network_delegate.h',
       'cert/cert_database_android.cc',
       'cert/cert_database_ios.cc',
       'cert/cert_database_mac.cc',
@@ -1299,6 +1303,7 @@
       'base/upload_bytes_element_reader_unittest.cc',
       'base/upload_file_element_reader_unittest.cc',
       'base/url_util_unittest.cc',
+      'base/layered_network_delegate_unittest.cc',
       'cert/cert_policy_enforcer_unittest.cc',
       'cert/cert_verify_proc_unittest.cc',
       'cert/crl_set_unittest.cc',