Add support to PAB fetcher for non-APK artifacts

Use headless Chrome to fetch XSRF token from PAB webpage,
then use buildsvc RPC to fetch download URL

Test: pab_client_test.py
Bug: 65605137

Change-Id: I1d5f3112b0792d2618b2bef6c2f52884e7566431
diff --git a/script/host_controller_setup.sh b/script/host_controller_setup.sh
new file mode 100644
index 0000000..49e17bc
--- /dev/null
+++ b/script/host_controller_setup.sh
@@ -0,0 +1,29 @@
+#!/bin/bash
+#
+# Copyright 2017 The Android Open Source Project
+#
+# 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.
+
+# TODO: could possibly auto-install google-chrome and chromedriver if not found
+# but currently gives helpful error message
+
+echo "Install Python SDK"
+sudo apt-get -y install python-dev
+
+echo "Install Python virtualenv and pip tools for VTS host controller"
+sudo apt-get -y install python-setuptools
+sudo apt-get -y install python-pip
+sudo apt-get -y install python-virtualenv
+
+echo "Downloading PyPI packages"
+sudo pip install selenium
\ No newline at end of file