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

build/android/screenshot.py

 #!/usr/bin/env python
 
 # Copyright (c) 2012 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.
 
 """Takes a screenshot or a screen video capture from an Android device."""
 
 import logging
 import optparse
 import os
 import sys
 
 from pylib import screenshot
+from pylib.device import device_blacklist
 from pylib.device import device_errors
 from pylib.device import device_utils
 
 def _PrintMessage(heading, eol='\n'):
   sys.stdout.write('%s%s' % (heading, eol))
   sys.stdout.flush()
 
 
 def _CaptureScreenshot(device, host_file):
   host_file = device.TakeScreenshot(host_file)
@@ skipping 15 matching lines @@
   host_file = recorder.Pull(host_file)
   _PrintMessage('Video written to %s' % os.path.abspath(host_file))
 
 
 def main():
   # Parse options.
   parser = optparse.OptionParser(description=__doc__,
                                  usage='screenshot.py [options] [filename]')
   parser.add_option('-d', '--device', metavar='ANDROID_DEVICE', help='Serial '
                     'number of Android device to use.', default=None)
+  parser.add_option('--blacklist-file', help='Device blacklist JSON file.')
   parser.add_option('-f', '--file', help='Save result to file instead of '
                     'generating a timestamped file name.', metavar='FILE')
   parser.add_option('-v', '--verbose', help='Verbose logging.',
                     action='store_true')
   video_options = optparse.OptionGroup(parser, 'Video capture')
   video_options.add_option('--video', help='Enable video capturing. Requires '
                            'Android KitKat or later', action='store_true')
   video_options.add_option('-b', '--bitrate', help='Bitrate in megabits/s, '
                            'from 0.1 to 100 mbps, %default mbps by default.',
                            default=4, type='float')
   video_options.add_option('-r', '--rotate', help='Rotate video by 90 degrees.',
                            default=False, action='store_true')
   video_options.add_option('-s', '--size', metavar='WIDTHxHEIGHT',
                            help='Frame size to use instead of the device '
                            'screen size.', default=None)
   parser.add_option_group(video_options)
 
   (options, args) = parser.parse_args()
 
   if len(args) > 1:
     parser.error('Too many positional arguments.')
   host_file = args[0] if args else options.file
 
   if options.verbose:
     logging.getLogger().setLevel(logging.DEBUG)
 
-  devices = device_utils.DeviceUtils.HealthyDevices()
+  if options.blacklist_file:
+    blacklist = device_blacklist.Blacklist(options.blacklist_file)
+  else:
+    blacklist = None
+
+  devices = device_utils.DeviceUtils.HealthyDevices(blacklist)
   if options.device:
     device = next((d for d in devices if d == options.device), None)
     if not device:
       raise device_errors.DeviceUnreachableError(options.device)
   else:
     if len(devices) > 1:
       parser.error('Multiple devices are attached. '
                    'Please specify device serial number with --device.')
     elif len(devices) == 1:
       device = devices[0]
     else:
       raise device_errors.NoDevicesError()
 
   if options.video:
     _CaptureVideo(device, host_file, options)
   else:
     _CaptureScreenshot(device, host_file)
   return 0
 
 
 if __name__ == '__main__':
   sys.exit(main())