Add tsproxy logging

telemetry/telemetry/internal/util/webpagereplay_go_server.py

 # Copyright 2017 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.
 
 """Start and stop Web Page Replay."""
 
 from py_utils import atexit_with_log
 import logging
 import os
 import re
@@ skipping 252 matching lines @@
     """
     is_posix = sys.platform.startswith('linux') or sys.platform == 'darwin'
     logging.info('Starting Web-Page-Replay: %s', self._cmd_line)
     self._CreateTempLogFilePath()
     with open(self._temp_log_file_path, 'w') as log_fh:
       self.replay_process = subprocess.Popen(
           self._cmd_line, stdout=log_fh, stderr=subprocess.STDOUT,
           preexec_fn=(_ResetInterruptHandler if is_posix else None))
     try:
       py_utils.WaitFor(self._IsStarted, 30)
-      logging.info('WPR ports: %s' % self._started_ports)
+      print 'WPR ports: %s' % self._started_ports
       atexit_with_log.Register(self.StopServer)
       return forwarders.PortSet(
           self._started_ports['http'],
           self._started_ports['https'],
           self._started_ports.get('dns'),  # None if unused
           )
     except py_utils.TimeoutException:
       raise ReplayNotStartedError(
           'Web Page Replay failed to start. Log output:\n%s' %
           ''.join(self._LogLines()))
@@ skipping 98 matching lines @@
   On posix system, running this function before starting replay fixes a
   bug that shows up when Telemetry is run as a background command from a
   script. https://crbug.com/254572.
 
   Background: Signal masks on Linux are inherited from parent
   processes. If anything invoking us accidentally masks SIGINT
   (e.g. by putting a process in the background from a shell script),
   sending a SIGINT to the child will fail to terminate it.
   """
   signal.signal(signal.SIGINT, signal.SIG_DFL)