Chromium roll (https://codereview.chromium.org/976353002)

build/android/pylib/device/device_errors.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.
 
 """
 Exception classes raised by AdbWrapper and DeviceUtils.
 """
 
 from pylib import cmd_helper
+from pylib.utils import base_error
 
 
-class BaseError(Exception):
-  """Base exception for all device and command errors."""
-  pass
-
-
-class CommandFailedError(BaseError):
+class CommandFailedError(base_error.BaseError):
   """Exception for command failures."""
 
   def __init__(self, message, device_serial=None):
     if device_serial is not None:
       message = '(device: %s) %s' % (device_serial, message)
     self.device_serial = device_serial
     super(CommandFailedError, self).__init__(message)
 
 
 class AdbCommandFailedError(CommandFailedError):
@@ skipping 29 matching lines @@
     if output:
       message.append('  output:\n')
       message.extend('  - %s\n' % line for line in output.splitlines())
     else:
       message.append("  output: ''\n")
     message = ''.join(message)
     super(AdbShellCommandFailedError, self).__init__(
       ['shell', command], output, status, device_serial, message)
 
 
-class CommandTimeoutError(BaseError):
+class CommandTimeoutError(base_error.BaseError):
   """Exception for command timeouts."""
   pass
 
 
-class DeviceUnreachableError(BaseError):
+class DeviceUnreachableError(base_error.BaseError):
   """Exception for device unreachable failures."""
   pass
 
 
-class NoDevicesError(BaseError):
+class NoDevicesError(base_error.BaseError):
   """Exception for having no devices attached."""
 
   def __init__(self):
     super(NoDevicesError, self).__init__('No devices attached.')
-