Check in the thirdparty libs needed for webkitpy.

Tools/Scripts/webkitpy/common/net/networktransaction_unittest.py

Index: Tools/Scripts/webkitpy/common/net/networktransaction_unittest.py
diff --git a/Tools/Scripts/webkitpy/common/net/networktransaction_unittest.py b/Tools/Scripts/webkitpy/common/net/networktransaction_unittest.py
index 67439f0944f4de56e98e5c009cd263d46010c84f..022178f8d0c4ba24a984f844ac7a0944c09da305 100644
--- a/Tools/Scripts/webkitpy/common/net/networktransaction_unittest.py
+++ b/Tools/Scripts/webkitpy/common/net/networktransaction_unittest.py
@@ -3,7 +3,7 @@
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
-# 
+#
 #     * Redistributions of source code must retain the above copyright
 # notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
@@ -13,7 +13,7 @@
 #     * Neither the name of Google Inc. nor the names of its
 # contributors may be used to endorse or promote products derived from
 # this software without specific prior written permission.
-# 
+#
 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
@@ -26,10 +26,11 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-import unittest2 as unittest
 
 from webkitpy.common.net.networktransaction import NetworkTransaction, NetworkTimeout
 from webkitpy.common.system.logtesting import LoggingTestCase
+from webkitpy.thirdparty import unittest2 as unittest
+from webkitpy.thirdparty.mechanize import HTTPError
 
 
 class NetworkTransactionTest(LoggingTestCase):
@@ -58,12 +59,10 @@ class NetworkTransactionTest(LoggingTestCase):
     def _raise_500_error(self):
         self._run_count += 1
         if self._run_count < 3:
-            from webkitpy.thirdparty.autoinstalled.mechanize import HTTPError
             raise HTTPError("http://example.com/", 500, "internal server error", None, None)
         return 42
 
     def _raise_404_error(self):
-        from webkitpy.thirdparty.autoinstalled.mechanize import HTTPError
         raise HTTPError("http://foo.com/", 404, "not found", None, None)
 
     def test_retry(self):