[Android] Prepare build/android/ for catapult+devil.

build/android/pylib/utils/logging_utils.py

 # Copyright 2014 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 contextlib
 import logging
 import os
-import sys
 
-from pylib import constants
-sys.path.insert(0, os.path.join(constants.DIR_SOURCE_ROOT,
-                                'third_party', 'colorama', 'src'))
-import colorama
+from pylib.constants import host_paths
+
+_COLORAMA_PATH = os.path.join(
+    host_paths.DIR_SOURCE_ROOT, 'third_party', 'colorama', 'src')
+
+with host_paths.SysPath(_COLORAMA_PATH):
+  import colorama
 
 class ColorStreamHandler(logging.StreamHandler):
   """Handler that can be used to colorize logging output.
 
   Example using a specific logger:
 
     logger = logging.getLogger('my_logger')
     logger.addHandler(ColorStreamHandler())
     logger.info('message')
 
@@ skipping 63 matching lines @@
       # all but CRITICAL logging messages are suppressed
       logging.info('just doing some thing') # not shown
       logging.critical('something really bad happened') # still shown
 
   Args:
     level: logging events with this or lower levels are suppressed.
   """
   logging.disable(level)
   yield
   logging.disable(logging.NOTSET)