Remove inside_chromium_build gyp variable

net/net.gyp

 # Copyright 2013 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,
     'use_tracing_cache_backend%': 0,
@@ skipping 2138 matching lines @@
         'test/remote_test_server.h',
         'test/spawned_test_server.h',
         'test/spawner_communicator.cc',
         'test/spawner_communicator.h',
         'url_request/test_url_fetcher_factory.cc',
         'url_request/test_url_fetcher_factory.h',
         'url_request/url_request_test_util.cc',
         'url_request/url_request_test_util.h',
       ],
       'conditions': [
-        ['inside_chromium_build==1 and OS != "ios"', {
+        ['OS != "ios"', {
           'dependencies': [
             '../third_party/protobuf/protobuf.gyp:py_proto',
           ],
         }],
         ['os_posix == 1 and OS != "mac" and OS != "android" and OS != "ios"', {
           'conditions': [
             ['use_openssl==1', {
               'dependencies': [
                 '../third_party/openssl/openssl.gyp:openssl',
               ],
@@ skipping 687 matching lines @@
                 '--result', '<@(_outputs)',
                 '--isolate', 'net_unittests.isolate',
               ],
             },
           ],
         },
       ],
     }],
   ],
 }