Add COMPONENT_BUILD global define.

net/net.gyp

 # Copyright (c) 2011 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,
   },
   'targets': [
     {
@@ skipping 804 matching lines @@
               'base/winsock_init.h',
               'base/winsock_util.cc',
               'base/winsock_util.h',
               'proxy/proxy_resolver_winhttp.cc',
               'proxy/proxy_resolver_winhttp.h',
             ],
           },
         ],
         [ 'component == "shared_library"', {
           'defines': [
-            'NET_DLL',
             'NET_IMPLEMENTATION',
           ],
-          'direct_dependent_settings': {
-            'defines': [
-              'NET_DLL',
-            ],
-          },
-          'conditions': [
-            [ 'OS == "win"', {
-              'msvs_disabled_warnings': [
-                # class 'std::xx' needs to have dll-interface.
-                4251,
-              ],
-              'direct_dependent_settings': {
-                'msvs_disabled_warnings': [
-                  4251,
-                ],
-              },
-            }],
-          ],
         }],
         [ 'OS == "mac"', {
             'dependencies': [
               '../third_party/nss/nss.gyp:nspr',
               '../third_party/nss/nss.gyp:nss',
               'third_party/nss/ssl.gyp:ssl',
             ],
             'link_settings': {
               'libraries': [
                 '$(SDKROOT)/System/Library/Frameworks/Security.framework',
@@ skipping 638 matching lines @@
             'tools/dump_cache/url_to_filename_encoder.cc',
             'tools/dump_cache/url_to_filename_encoder.h',
             'tools/dump_cache/url_utilities.h',
             'tools/dump_cache/url_utilities.cc',
           ],
         },
       ],
     }],
   ],
 }