[Android] Move screenshot and video_recorder into devil.

build/android/devil/android/tools/flash_device.py

 #!/usr/bin/env python
 # Copyright 2015 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 argparse
 import logging
+import os
 import sys
 
+if __name__ == '__main__':
+  sys.path.append(os.path.abspath(os.path.join(
+      os.path.dirname(__file__), os.pardir, os.pardir, os.pardir)))
 from devil.android import device_blacklist
 from devil.android import device_errors
 from devil.android import device_utils
 from devil.android import fastboot_utils
 from devil.android.sdk import adb_wrapper
 from devil.constants import exit_codes
 from devil.utils import run_tests_helper
 
 
 def GetDeviceList(device=None):
@@ skipping 52 matching lines @@
     logging.info('The following devices were flashed:')
     logging.info('  %s', ' '.join(str(d) for d in flashed_devices))
   if failed_devices:
     logging.critical('The following devices failed to flash:')
     logging.critical('  %s', ' '.join(str(d) for d in failed_devices))
     return exit_codes.INFRA
   return 0
 
 if __name__ == '__main__':
   sys.exit(main())