Check in the thirdparty libs needed for webkitpy.

Tools/Scripts/webkitpy/thirdparty/webpagereplay/third_party/ipaddr/test-2to3.sh

+#!/bin/sh
+# Copyright 2007 Google Inc.
+#  Licensed to PSF under a Contributor Agreement.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+# implied. See the License for the specific language governing
+# permissions and limitations under the License.
+#
+# Converts the python2 ipaddr files to python3 and runs the unit tests
+# with both python versions.
+
+mkdir -p 2to3output && \
+cp -f *.py 2to3output && \
+( cd 2to3output && 2to3 . | patch -p0 ) && \
+py3version=$(python3 --version 2>&1) && \
+echo -e "\nTesting with ${py3version}" && \
+python3 2to3output/ipaddr_test.py && \
+rm -r 2to3output && \
+pyversion=$(python --version 2>&1) && \
+echo -e "\nTesting with ${pyversion}" && \
+./ipaddr_test.py