[Android] Add --blacklist-file as a command-line option.

build/android/pylib/utils/test_environment.py

 # Copyright 2013 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 psutil
 import signal
 
 from pylib.device import device_errors
 from pylib.device import device_utils
@@ skipping 12 matching lines @@
           signalled.append(p)
         except Exception as e:
           logging.warning('Failed killing %s %s %s', server, p.pid, e)
     for p in signalled:
       try:
         p.wait(1)
       except Exception as e:
         logging.warning('Failed waiting for %s to die. %s', p.pid, e)
 
 
-def CleanupLeftoverProcesses():
-  """Clean up the test environment, restarting fresh adb and HTTP daemons."""
+def CleanupLeftoverProcesses(devices):
+  """Clean up the test environment, restarting fresh adb and HTTP daemons.
+
+  Args:
+    devices: The devices to clean.
+  """
   _KillWebServers()
   device_utils.RestartServer()
 
   def cleanup_device(d):
     d.RestartAdbd()
     try:
       d.EnableRoot()
     except device_errors.CommandFailedError as e:
       logging.error(str(e))
     d.WaitUntilFullyBooted()
 
-  device_utils.DeviceUtils.parallel().pMap(cleanup_device)
+  device_utils.DeviceUtils.parallel(devices).pMap(cleanup_device)