Fix Windows build

runtime/bin/bin.gypi

 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 {
   'variables': {
     'gen_source_dir': '<(SHARED_INTERMEDIATE_DIR)',
 
     'io_cc_file': '<(gen_source_dir)/io_gen.cc',
     'io_patch_cc_file': '<(gen_source_dir)/io_patch_gen.cc',
@@ skipping 381 matching lines @@
         'platform_android.cc',
         'platform_linux.cc',
         'platform_macos.cc',
         'platform_win.cc',
         'platform.h',
         # Include generated source files.
         '<(builtin_cc_file)',
         '<(io_cc_file)',
         '<(io_patch_cc_file)',
       ],
+      'defines': [
+        'PLATFORM_DISABLE_SOCKET'
+      ],
       'conditions': [
         ['OS=="win"', {
           'link_settings': {
             'libraries': [ '-lws2_32.lib', '-lRpcrt4.lib' ],
           },
         }],
       ],
     },
     {
       # Generate snapshot bin file.
@@ skipping 386 matching lines @@
         }],
         ['OS=="linux"', {
           'cflags': [
             '-fPIC',
           ],
         }],
       ],
     },
   ],
 }