swarming: Enable USB resets in python-adb on the staging instance.

appengine/third_party/python-adb/adb/contrib/high.py

 # coding=utf-8
 # Copyright 2015 Google Inc. All rights reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
 #     http://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
@@ skipping 256 matching lines @@
       # This updates the port path of the device thus clears its cache.
       device.Root()
     return device
 
   devices = parallel.pmap(fn, handles)
   _PER_DEVICE_CACHE.trim(devices)
   return devices
 
 
 def GetLocalDevices(
-    banner, default_timeout_ms, auth_timeout_ms, on_error=None, as_root=False):
+    banner, default_timeout_ms, auth_timeout_ms, on_error=None, as_root=False,
+    enable_resets=False):
   """Returns the list of devices available.
 
   Caller MUST call CloseDevices(devices) on the return value or call .Close() on
   each element to close the USB handles.
 
   Arguments:
   - banner: authentication banner associated with the RSA keys. It's better to
         use a constant.
   - default_timeout_ms: default I/O operation timeout.
   - auth_timeout_ms: timeout for the user to accept the public key.
   - on_error: callback when an internal failure occurs.
   - as_root: if True, restarts adbd as root if possible.
 
   Returns one of:
     - list of HighDevice instances.
     - None if adb is unavailable.
   """
   with _ADB_KEYS_LOCK:
     if not _ADB_KEYS:
       return []
   # Create unopened handles for all usb devices.
   handles = list(
       common.UsbHandle.FindDevicesSafe(
           adb_commands_safe.DeviceIsAvailable, timeout_ms=default_timeout_ms))
 
   return _ConnectFromHandles(handles, banner=banner,
                              default_timeout_ms=default_timeout_ms,
                              auth_timeout_ms=auth_timeout_ms, on_error=on_error,
-                             as_root=as_root)
+                             as_root=as_root, enable_resets=enable_resets)
 
 
 def GetRemoteDevices(banner, endpoints, default_timeout_ms, auth_timeout_ms,
                      on_error=None, as_root=False):
   """Returns the list of devices available.
 
   Caller MUST call CloseDevices(devices) on the return value or call .Close() on
   each element to close the TCP handles.
 
   Arguments:
@@ skipping 661 matching lines @@
     return out
 
   @classmethod
   def _Connect(cls, constructor, **kwargs):
     """Called by either ConnectDevice or Connect."""
     if not kwargs.get('rsa_keys'):
       with _ADB_KEYS_LOCK:
         kwargs['rsa_keys'] = _ADB_KEYS[:]
     device = constructor(**kwargs)
     return HighDevice(device, _InitCache(device))