Integrate fake_network_pipe into direct_transport.

TEST=trybots
R=mflodman@webrtc.org, pbos@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/5529004

git-svn-id: http://webrtc.googlecode.com/svn/trunk/webrtc@5321 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/webrtc.gyp b/webrtc.gyp
index ed101b6..e78dba6 100644
--- a/webrtc.gyp
+++ b/webrtc.gyp
@@ -43,6 +43,7 @@
             'system_wrappers/source/system_wrappers_tests.gyp:*',
             'test/metrics.gyp:*',
             'test/test.gyp:*',
+            'test/webrtc_test_common.gyp:webrtc_test_common_unittests',
             'tools/tools.gyp:*',
             'webrtc_tests',
           ],