[Android] Reland of Remove android_commands and android_testrunner.

build/android/pylib/device/decorators.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.
 
 """
 Function/method decorators that provide timeout and retry logic.
 """
 
 import functools
 import os
 import sys
 import threading
 
 from pylib import cmd_helper
 from pylib import constants
 from pylib.device import device_errors
 from pylib.utils import reraiser_thread
 from pylib.utils import timeout_retry
 
-# TODO(jbudorick) Remove once the DeviceUtils implementations are no longer
-#                 backed by AndroidCommands / android_testrunner.
-sys.path.append(os.path.join(constants.DIR_SOURCE_ROOT, 'third_party',
-                             'android_testrunner'))
-import errors as old_errors
-
 DEFAULT_TIMEOUT_ATTR = '_default_timeout'
 DEFAULT_RETRIES_ATTR = '_default_retries'
 
 
 def _TimeoutRetryWrapper(f, timeout_func, retries_func, pass_values=False):
   """ Wraps a funcion with timeout and retry handling logic.
 
   Args:
     f: The function to wrap.
     timeout_func: A callable that returns the timeout value.
@@ skipping 12 matching lines @@
       kwargs['timeout'] = timeout
       kwargs['retries'] = retries
     def impl():
       return f(*args, **kwargs)
     try:
       if isinstance(threading.current_thread(),
                     timeout_retry.TimeoutRetryThread):
         return impl()
       else:
         return timeout_retry.Run(impl, timeout, retries)
-    except old_errors.WaitForResponseTimedOutError as e:
-      raise device_errors.CommandTimeoutError(str(e)), None, (
-          sys.exc_info()[2])
-    except old_errors.DeviceUnresponsiveError as e:
-      raise device_errors.DeviceUnreachableError(str(e)), None, (
-          sys.exc_info()[2])
     except reraiser_thread.TimeoutError as e:
       raise device_errors.CommandTimeoutError(str(e)), None, (
           sys.exc_info()[2])
     except cmd_helper.TimeoutError as e:
       raise device_errors.CommandTimeoutError(str(e)), None, (
           sys.exc_info()[2])
   return TimeoutRetryWrapper
 
 
 def WithTimeoutAndRetries(f):
@@ skipping 74 matching lines @@
     The actual decorator.
   """
   def decorator(f):
     def get_timeout(inst, *_args, **kwargs):
       return kwargs.get('timeout', getattr(inst, default_timeout_name))
     def get_retries(inst, *_args, **kwargs):
       return kwargs.get('retries', getattr(inst, default_retries_name))
     return _TimeoutRetryWrapper(f, get_timeout, get_retries, pass_values=True)
   return decorator