[Android] Prepare build/android/ for catapult+devil.

build/android/pylib/host_driven/test_info_collection.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.
 
 """Module containing information about the host-driven tests."""
 
 import logging
 import os
-import sys
 
+from pylib.constants import host_paths
 from pylib.host_driven import tests_annotations
 
-from pylib import constants
-
-sys.path.insert(0,
-                os.path.join(constants.DIR_SOURCE_ROOT,
-                             'build', 'util', 'lib', 'common'))
-
-import unittest_util # pylint: disable=F0401
+with host_paths.SysPath(host_paths.BUILD_COMMON_PATH):
+  import unittest_util # pylint: disable=import-error
 
 class TestInfo(object):
   """An object containing and representing a test function, plus metadata."""
 
   def __init__(self, runnable, set_up=None, tear_down=None):
     # The actual test function/method.
     self.runnable = runnable
     # Qualified name of test function/method (e.g. FooModule.testBar).
     self.qualified_name = self._GetQualifiedName(runnable)
     # setUp and teardown functions, if any.
@@ skipping 105 matching lines @@
         value_list = filters[1].split(',')
         for value in value_list:
           if tests_annotations.AnnotatedFunctions.IsAnnotated(
               key + ':' + value, test_info.qualified_name):
             return True
       elif tests_annotations.AnnotatedFunctions.IsAnnotated(
           annotation_filter, test_info.qualified_name):
         return True
     return False