Create a 'webrtc_nonparallel_tests' target.

webrtc/base/base_tests.gyp

Index: webrtc/base/base_tests.gyp
diff --git a/webrtc/base/base_tests.gyp b/webrtc/base/base_tests.gyp
index 4c3dd3dba12f731d5423637f1303ba280b11bef6..34a3d83a74c27d633acf207e6d651dcc3bda99e2 100644
--- a/webrtc/base/base_tests.gyp
+++ b/webrtc/base/base_tests.gyp
@@ -78,10 +78,8 @@
           'multipart_unittest.cc',
           'nat_unittest.cc',
           'network_unittest.cc',
-          'nullsocketserver_unittest.cc',
           'optionsfile_unittest.cc',
           'pathutils_unittest.cc',
-          'physicalsocketserver_unittest.cc',
           'profiler_unittest.cc',
           'proxy_unittest.cc',
           'proxydetect_unittest.cc',
@@ -96,9 +94,6 @@
           'sigslot_unittest.cc',
           'sigslottester.h',
           'sigslottester.h.pump',
-          'socket_unittest.cc',
-          'socket_unittest.h',
-          'socketaddress_unittest.cc',
           'stream_unittest.cc',
           'stringencode_unittest.cc',
           'stringutils_unittest.cc',
@@ -111,7 +106,6 @@
           'timeutils_unittest.cc',
           'urlencode_unittest.cc',
           'versionparsing_unittest.cc',
-          'virtualsocket_unittest.cc',
           # TODO(ronghuawu): Reenable this test.
           # 'windowpicker_unittest.cc',
         ],
@@ -128,7 +122,6 @@
             'sources': [
               'win32_unittest.cc',
               'win32regkey_unittest.cc',
-              'win32socketserver_unittest.cc',
               'win32window_unittest.cc',
               'win32windowpicker_unittest.cc',
               'winfirewall_unittest.cc',
@@ -136,15 +129,11 @@
             'sources!': [
               # TODO(ronghuawu): Fix TestUdpReadyToSendIPv6 on windows bot

[kjellander_webrtc, 2015/10/28 15:53:42]

Remove this TODO.

[pbos-webrtc, 2015/10/29 09:46:33]

Done.

               # then reenable these tests.
-              'physicalsocketserver_unittest.cc',
-              'socket_unittest.cc',
-              'win32socketserver_unittest.cc',
               'win32windowpicker_unittest.cc',
             ],
           }],
           ['OS=="mac"', {
             'sources': [
-              'macsocketserver_unittest.cc',
               'macutils_unittest.cc',
             ],
           }],