[android] Convert linker tests to platform mode.

build/android/pylib/linker/setup.py

-# Copyright 2013 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.
-
-"""Setup for linker tests."""
-
-import logging
-
-from pylib.constants import host_paths
-from pylib.linker import test_case
-from pylib.linker import test_runner
-
-with host_paths.SysPath(host_paths.BUILD_COMMON_PATH):
-  import unittest_util # pylint: disable=import-error
-
-# ModernLinker requires Android M (API level 23) or later.
-_VERSION_SDK_PROPERTY = 'ro.build.version.sdk'
-_MODERN_LINKER_MINIMUM_SDK_INT = 23
-
-def Setup(args, devices):
-  """Creates a list of test cases and a runner factory.
-
-  Args:
-    args: an argparse.Namespace object.
-    devices: an iterable of available devices.
-  Returns:
-    A tuple of (TestRunnerFactory, tests).
-  """
-  legacy_linker_tests = [
-      test_case.LinkerSharedRelroTest(is_modern_linker=False,
-                                      is_low_memory=False),
-      test_case.LinkerSharedRelroTest(is_modern_linker=False,
-                                      is_low_memory=True),
-  ]
-  modern_linker_tests = [
-      test_case.LinkerSharedRelroTest(is_modern_linker=True),
-  ]
-
-  min_sdk_int = 1 << 31
-  for device in devices:
-    min_sdk_int = min(min_sdk_int, device.build_version_sdk)
-
-  if min_sdk_int >= _MODERN_LINKER_MINIMUM_SDK_INT:
-    all_tests = legacy_linker_tests + modern_linker_tests
-  else:
-    all_tests = legacy_linker_tests
-    logging.warn('Not running LinkerModern tests (requires API %d, found %d)',
-                 _MODERN_LINKER_MINIMUM_SDK_INT, min_sdk_int)
-
-  if args.test_filter:
-    all_test_names = [test.qualified_name for test in all_tests]
-    filtered_test_names = unittest_util.FilterTestNames(all_test_names,
-                                                        args.test_filter)
-    all_tests = [t for t in all_tests \
-                 if t.qualified_name in filtered_test_names]
-
-  def TestRunnerFactory(device, _shard_index):
-    return test_runner.LinkerTestRunner(device, args.tool)
-
-  return (TestRunnerFactory, all_tests)