Enable 307 net unit tests on Android.

This is possible since r167167 landed.

BUG=146979


Review URL: https://chromiumcodereview.appspot.com/11363194

git-svn-id: http://src.chromium.org/svn/trunk/src/net/tools/testserver@167653 4ff67af0-8c30-449e-8e8b-ad334ec8d88c
diff --git a/testserver.py b/testserver.py
index ba74b69..0ab49c0 100755
--- a/testserver.py
+++ b/testserver.py
@@ -37,13 +37,15 @@
 import zlib
 
 import echo_message
-from mod_pywebsocket.standalone import WebSocketServer
 import pyftpdlib.ftpserver
 import testserver_base
 import tlslite
 import tlslite.api
 
 BASE_DIR = os.path.dirname(os.path.abspath(__file__))
+sys.path.insert(
+    0, os.path.join(BASE_DIR, '..', '..', '..', 'third_party/pywebsocket/src'))
+from mod_pywebsocket.standalone import WebSocketServer
 
 SERVER_HTTP = 0
 SERVER_FTP = 1