Remove support for 'system' SSL on Mac (SecureTransport) and Win (SChannel)

net/net.gyp

 # Copyright (c) 2012 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.
 
 {
   'variables': {
     'chromium_code': 1,
 
     'linux_link_kerberos%': 0,
     'conditions': [
@@ skipping 743 matching lines @@
         'socket/socket_net_log_params.h',
         'socket/socket.h',
         'socket/socks5_client_socket.cc',
         'socket/socks5_client_socket.h',
         'socket/socks_client_socket.cc',
         'socket/socks_client_socket.h',
         'socket/socks_client_socket_pool.cc',
         'socket/socks_client_socket_pool.h',
         'socket/ssl_client_socket.cc',
         'socket/ssl_client_socket.h',
-        'socket/ssl_client_socket_mac.cc',
-        'socket/ssl_client_socket_mac.h',
         'socket/ssl_client_socket_nss.cc',
         'socket/ssl_client_socket_nss.h',
         'socket/ssl_client_socket_openssl.cc',
         'socket/ssl_client_socket_openssl.h',
         'socket/ssl_client_socket_pool.cc',
         'socket/ssl_client_socket_pool.h',
-        'socket/ssl_client_socket_win.cc',
-        'socket/ssl_client_socket_win.h',
         'socket/ssl_error_params.cc',
         'socket/ssl_error_params.h',
         'socket/ssl_server_socket.h',
         'socket/ssl_server_socket_nss.cc',
         'socket/ssl_server_socket_nss.h',
         'socket/ssl_server_socket_openssl.cc',
         'socket/ssl_socket.h',
         'socket/stream_socket.cc',
         'socket/stream_socket.h',
         'socket/tcp_client_socket.cc',
@@ skipping 1653 matching lines @@
                 '--result', '<@(_outputs)',
                 '--isolate', 'net_unittests.isolate',
               ],
             },
           ],
         },
       ],
     }],
   ],
 }