Reorganize Android's test scripts into packages.

build/android/pylib/gtest/single_test_runner.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.
 
 import glob
 import logging
 import os
 import sys
 
-import android_commands
-from android_commands import errors
-from base_test_runner import BaseTestRunner
-import constants
+from pylib import android_commands
+from pylib import constants
+from pylib import perf_tests_helper
+from pylib.android_commands import errors
+from pylib.base_test_runner import BaseTestRunner
+from pylib.test_result import BaseTestResult, TestResults
+from pylib.utils import run_tests_helper
+
 import debug_info
-import perf_tests_helper
 from test_package_apk import TestPackageApk
 from test_package_executable import TestPackageExecutable
-from test_result import BaseTestResult, TestResults
-from utils import run_tests_helper
 
 
 class SingleTestRunner(BaseTestRunner):
   """Single test suite attached to a single device.
 
   Args:
     device: Device to run the tests.
     test_suite: A specific test suite to run, empty to run all.
     gtest_filter: A gtest_filter flag.
     test_arguments: Additional arguments to pass to the test binary.
@@ skipping 254 matching lines @@
   def TearDown(self):
     """Cleans up the test enviroment for the test suite."""
     self.tool.CleanUpEnvironment()
     if self.test_package.cleanup_test_files:
       self.adb.RemovePushedFiles()
     if self.dump_debug_info:
       self.dump_debug_info.StopRecordingLog()
     if self.dump_debug_info:
       self.dump_debug_info.ArchiveNewCrashFiles()
     super(SingleTestRunner, self).TearDown()