100setupTestingInterface: accept hostnames from psuedoethernet0.

Allow shill to accept hostnames from psuedoethernet0
by default on test builds.

BUG=chromium:475699
TEST=None
CQ-DEPEND=CL:266774

Change-Id: Id76200b875a58e0a572b47b0fa73201a1ce12f8a
Reviewed-on: https://chromium-review.googlesource.com/267395
Commit-Queue: Paul Stewart <pstew@chromium.org>
Tested-by: Paul Stewart <pstew@chromium.org>
Reviewed-by: Paul Stewart <pstew@chromium.org>
diff --git a/mod_for_test_scripts/100setupTestingInterface b/mod_for_test_scripts/100setupTestingInterface
index 7214806..e72da2e 100755
--- a/mod_for_test_scripts/100setupTestingInterface
+++ b/mod_for_test_scripts/100setupTestingInterface
@@ -15,6 +15,7 @@
 ORIG_CONF=${ROOT_FS_DIR}/etc/init/shill.conf
 TEMP_CONF=${ORIG_CONF}.tmp
 sed -e "s@SHILL_TEST_DEVICES=\"\"@SHILL_TEST_DEVICES=\"${test_devices}\"@" \
+    -e "s@SHILL_ACCEPT_HOSTNAME_FROM=@SHILL_ACCEPT_HOSTNAME_FROM=\"pseudoethernet0\"@" \
     ${ORIG_CONF} > ${TEMP_CONF}
 mv -f ${TEMP_CONF} ${ORIG_CONF}