Keep pool of pre-connected DNS sockets

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 391 matching lines @@
         'dns/dns_config_service_win.h',
         'dns/dns_hosts.cc',
         'dns/dns_hosts.h',
         'dns/dns_protocol.h',
         'dns/dns_query.cc',
         'dns/dns_query.h',
         'dns/dns_response.cc',
         'dns/dns_response.h',
         'dns/dns_session.cc',
         'dns/dns_session.h',
+        'dns/dns_socket_pool.cc',
+        'dns/dns_socket_pool.h',
         'dns/dns_transaction.cc',
         'dns/dns_transaction.h',
         'dns/notify_watcher_mac.cc',
         'dns/notify_watcher_mac.h',
         'dns/serial_worker.cc',
         'dns/serial_worker.h',
         'ftp/ftp_auth_cache.cc',
         'ftp/ftp_auth_cache.h',
         'ftp/ftp_ctrl_response_buffer.cc',
         'ftp/ftp_ctrl_response_buffer.h',
@@ skipping 839 matching lines @@
         'disk_cache/mapped_file_unittest.cc',
         'disk_cache/storage_block_unittest.cc',
         'dns/address_sorter_posix_unittest.cc',
         'dns/address_sorter_unittest.cc',
         'dns/dns_config_service_posix_unittest.cc',
         'dns/dns_config_service_unittest.cc',
         'dns/dns_config_service_win_unittest.cc',
         'dns/dns_hosts_unittest.cc',
         'dns/dns_query_unittest.cc',
         'dns/dns_response_unittest.cc',
+        'dns/dns_session_unittest.cc',
         'dns/dns_transaction_unittest.cc',
         'dns/serial_worker_unittest.cc',
         'ftp/ftp_auth_cache_unittest.cc',
         'ftp/ftp_ctrl_response_buffer_unittest.cc',
         'ftp/ftp_directory_listing_parser_ls_unittest.cc',
         'ftp/ftp_directory_listing_parser_netware_unittest.cc',
         'ftp/ftp_directory_listing_parser_os2_unittest.cc',
         'ftp/ftp_directory_listing_parser_unittest.cc',
         'ftp/ftp_directory_listing_parser_unittest.h',
         'ftp/ftp_directory_listing_parser_vms_unittest.cc',
@@ skipping 1002 matching lines @@
                 '--result', '<@(_outputs)',
                 '--isolate', 'net_unittests.isolate',
               ],
             },
           ],
         },
       ],
     }],
   ],
 }