[Android] Move base tests classes to pylib/base

build/android/pylib/host_driven/run_python_tests.py

 # Copyright (c) 2012 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.
 
 """Runs the Python tests (relies on using the Java test runner)."""
 
 import logging
 import os
 import sys
 import types
 
 from pylib import android_commands
 from pylib import constants
+from pylib.base.test_result import TestResults
 from pylib.instrumentation import apk_info
 from pylib.instrumentation import run_java_tests
 from pylib.instrumentation.run_java_tests import FatalTestException
-from pylib.test_result import TestResults
 
 import python_test_base
 from python_test_caller import CallPythonTest
 from python_test_sharder import PythonTestSharder
 from test_info_collection import TestInfoCollection
 
 
 def _GetPythonFiles(root, files):
   """Returns all files from |files| that end in 'Test.py'.
 
@@ skipping 171 matching lines @@
   Returns:
     List of test case objects for all available test methods.
   """
   if not test_root:
     return []
   all_tests = []
   test_module_list = _GetTestModules(test_root, is_official_build)
   for module in test_module_list:
     all_tests.extend(_GetTestClassesFromModule(module))
   return all_tests