Change gyp flag from in_dartium to dart_io_support.

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': {
     'crypto_cc_file': '<(SHARED_INTERMEDIATE_DIR)/crypto_gen.cc',
     'io_cc_file': '<(SHARED_INTERMEDIATE_DIR)/io_gen.cc',
     'io_patch_cc_file': '<(SHARED_INTERMEDIATE_DIR)/io_patch_gen.cc',
     'json_cc_file': '<(SHARED_INTERMEDIATE_DIR)/json_gen.cc',
@@ skipping 288 matching lines @@
             'libraries': [
               '-ldl',
             ],
           },
         }],
       ],
     },
     {
       'target_name': 'libdart_io',
       'type': 'static_library',
-      'dependencies': [
-        'nss_runtime',
-      ],
       'include_dirs': [
         '..',
       ],
       'sources': [
         'io_natives.h',
         'io_natives.cc',
       ],
       'includes': [
         'io_impl_sources.gypi',
       ],
       'conditions': [
+        [ 'dart_io_support==1', {
+          'dependencies': [
+            'bin/net/ssl.gyp:libssl_dart',
+          ],
+        }],
         ['OS=="win"', {
           # TODO(antonm): fix the implementation.
           # Current implementation accepts char* strings
           # and therefore fails to compile once _UNICODE is
           # enabled.  That should be addressed using -A
           # versions of functions and adding necessary conversions.
           'configurations': {
             'Common_Base': {
               'msvs_configuration_attributes': {
                 'CharacterSet': '0',
               },
             },
           },
         }],
       ],
     },
     {
-      'target_name': 'nss_runtime',
-      'type': 'none',
-      'conditions': [[ 'in_dartium==0', {
-        'dependencies': [
-          'bin/net/nss.gyp:nss_dart',
-          'bin/net/nss.gyp:nspr_dart',
-          'bin/net/nss.gyp:nssckbi_dart',
-          'bin/net/nss.gyp:nss_static_dart',
-          'bin/net/ssl.gyp:libssl_dart',
-          'bin/net/zlib.gyp:zlib_dart',
-          'bin/net/sqlite.gyp:sqlite_dart',
-        ],
-        'export_dependent_settings': [
-          'bin/net/nss.gyp:nss_dart',
-          'bin/net/nss.gyp:nspr_dart',
-          'bin/net/nss.gyp:nssckbi_dart',
-          'bin/net/nss.gyp:nss_static_dart',
-          'bin/net/ssl.gyp:libssl_dart',
-          'bin/net/zlib.gyp:zlib_dart',
-          'bin/net/sqlite.gyp:sqlite_dart',
-        ],
-      }]],
-    },
-    {
       'target_name': 'libdart_withcore',
       'type': 'static_library',
       'dependencies': [
         'libdart_lib_withcore',
         'libdart_vm',
         'libjscre',
         'libdouble_conversion',
         'generate_version_cc_file',
       ],
       'include_dirs': [
@@ skipping 256 matching lines @@
         ['OS=="mac"', {
           'xcode_settings': {
             'OTHER_LDFLAGS': [ '-undefined', 'dynamic_lookup' ],
           },
         }],
       ],
     },
   ],
 }