Revert of [devil] Extract logging common behavior to its own module.

devil/devil/utils/logging_common.py

Index: devil/devil/utils/logging_common.py
diff --git a/devil/devil/utils/logging_common.py b/devil/devil/utils/logging_common.py
deleted file mode 100644
index 5aea3c64eeec742256a04f952afaffb98f5f657a..0000000000000000000000000000000000000000
--- a/devil/devil/utils/logging_common.py
+++ /dev/null
@@ -1,50 +0,0 @@
-# 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.
-
-import logging
-import sys
-import time
-
-
-def AddLoggingArguments(parser):
-  parser.add_argument(
-      '-v', '--verbose', action='count', default=0,
-      help='Log more. Use multiple times for even more logging.')
-
-
-def InitializeLogging(args, handler=None):
-  if args.verbose == 0:
-    log_level = logging.WARNING
-  elif args.verbose == 1:
-    log_level = logging.INFO
-  else:
-    log_level = logging.DEBUG
-  logger = logging.getLogger()
-  logger.setLevel(log_level)
-  if not handler:
-    handler = logging.StreamHandler(sys.stdout)
-    handler.setFormatter(CustomFormatter())
-  logger.addHandler(handler)
-
-
-class CustomFormatter(logging.Formatter):
-  """Custom log formatter."""
-
-  # override
-  def __init__(self, fmt='%(threadName)-4s  %(message)s'):
-    # Can't use super() because in older Python versions logging.Formatter does
-    # not inherit from object.
-    logging.Formatter.__init__(self, fmt=fmt)
-    self._creation_time = time.time()
-
-  # override
-  def format(self, record):
-    # Can't use super() because in older Python versions logging.Formatter does
-    # not inherit from object.
-    msg = logging.Formatter.format(self, record)
-    if 'MainThread' in msg[:19]:
-      msg = msg.replace('MainThread', 'Main', 1)
-    timediff = time.time() - self._creation_time
-    return '%s %8.3fs %s' % (record.levelname[0], timediff, msg)
-