Filter out log lines when parsing output of --gtest_list_tests.

mojo/tools/gtest.py

 # Copyright 2015 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import logging
 import os
 import re
 import subprocess
 import sys
 
@@ skipping 69 matching lines @@
   except Exception as e:
     print "Failed to get test fixtures:"
     _print_process_error(command, e)
   return []
 
 
 def _gtest_list_tests(gtest_list_tests_output):
   """Returns a list of strings formatted as TestSuite.TestFixture from the
   output of running --gtest_list_tests on a GTEST application."""
 
+  # Remove log lines.
+  gtest_list_tests_output = (
+      re.sub("^\[.*\n", "", gtest_list_tests_output, flags=re.MULTILINE))
+
   if not re.match("^(\w*\.\r?\n(  \w*\r?\n)+)+", gtest_list_tests_output):
     raise Exception("Unrecognized --gtest_list_tests output:\n%s" %
                     gtest_list_tests_output)
 
   output_lines = gtest_list_tests_output.split('\n')
 
   test_list = []
   for line in output_lines:
     if not line:
       continue
     if line[0] != ' ':
       suite = line.strip()
       continue
     test_list.append(suite + line.strip())
 
   return test_list