Add a snapshot of flutter/engine/src/build to our sdk

build/android/pylib/linker/setup.py

Index: build/android/pylib/linker/setup.py
diff --git a/build/android/pylib/linker/setup.py b/build/android/pylib/linker/setup.py
new file mode 100644
index 0000000000000000000000000000000000000000..5776f5af33555bcab98cc9150fc3b6e5e02770e6
--- /dev/null
+++ b/build/android/pylib/linker/setup.py
@@ -0,0 +1,45 @@
+# 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 os
+import sys
+
+from pylib import constants
+from pylib.linker import test_case
+from pylib.linker import test_runner
+
+sys.path.insert(0,
+                os.path.join(constants.DIR_SOURCE_ROOT, 'build', 'util', 'lib',
+                             'common'))
+import unittest_util # pylint: disable=F0401
+
+def Setup(args, _devices):
+  """Creates a list of test cases and a runner factory.
+
+  Args:
+    args: an argparse.Namespace object.
+  Returns:
+    A tuple of (TestRunnerFactory, tests).
+  """
+  test_cases = [
+      test_case.LinkerLibraryAddressTest,
+      test_case.LinkerSharedRelroTest,
+      test_case.LinkerRandomizationTest]
+
+  low_memory_modes = [False, True]
+  all_tests = [t(is_low_memory=m) for t in test_cases for m in low_memory_modes]
+
+  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)