Revert of [Android] Remove android_commands and android_testrunner.

third_party/android_testrunner/errors.py

+#!/usr/bin/python2.4
+#
+#
+# Copyright 2008, The Android Open Source Project
+#
+# 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
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""Defines common exception classes for this package."""
+
+
+class MsgException(Exception):
+  """Generic exception with an optional string msg."""
+  def __init__(self, msg=""):
+    self.msg = msg
+
+
+class WaitForResponseTimedOutError(Exception):
+  """We sent a command and had to wait too long for response."""
+
+
+class DeviceUnresponsiveError(Exception):
+  """Device is unresponsive to command."""
+
+
+class InstrumentationError(Exception):
+  """Failed to run instrumentation."""
+
+
+class AbortError(MsgException):
+  """Generic exception that indicates a fatal error has occurred and program
+  execution should be aborted."""
+
+
+class ParseError(MsgException):
+  """Raised when xml data to parse has unrecognized format."""
+