make gm self-tests launch python unittests automatically

gm/tests/run.sh

 #!/bin/bash
 
 # Self-tests for gm, based on tools/tests/run.sh
 #
 # These tests are run by the Skia_PerCommit_House_Keeping bot at every commit,
 # so make sure that they still pass when you make changes to gm!
 #
 # To generate new baselines when gm behavior changes, run gm/tests/rebaseline.sh
 #
 # TODO: because this is written as a shell script (instead of, say, Python)
@@ skipping 246 matching lines @@
 # Exercise display_json_results.py
 PASSING_CASES="compared-against-identical-bytes-json compared-against-identical-pixels-json"
 FAILING_CASES="compared-against-different-pixels-json"
 for CASE in $PASSING_CASES; do
   assert_passes "python gm/display_json_results.py $GM_OUTPUTS/$CASE/$OUTPUT_EXPECTED_SUBDIR/json-summary.txt"
 done
 for CASE in $FAILING_CASES; do
   assert_fails "python gm/display_json_results.py $GM_OUTPUTS/$CASE/$OUTPUT_EXPECTED_SUBDIR/json-summary.txt"
 done
 
-# Exercise all rebaseline_server unittests.
-assert_passes "python gm/rebaseline_server/test_all.py"
+# Exercise all Python unittests.
+assert_passes "python gm/test_all.py"
 
 echo
 if [ $ENCOUNTERED_ANY_ERRORS == 0 ]; then
   echo "All tests passed."
   exit 0
 else
   echo "Some tests failed."
   exit 1
 fi