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

build/android/pylib/local/device/local_device_test_run.py

Index: build/android/pylib/local/device/local_device_test_run.py
diff --git a/build/android/pylib/local/device/local_device_test_run.py b/build/android/pylib/local/device/local_device_test_run.py
new file mode 100644
index 0000000000000000000000000000000000000000..fa24eb10e26df4eb3a537d457d23c0146da32283
--- /dev/null
+++ b/build/android/pylib/local/device/local_device_test_run.py
@@ -0,0 +1,99 @@
+# Copyright 2014 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 logging
+
+from pylib import valgrind_tools
+from pylib.base import base_test_result
+from pylib.base import test_run
+from pylib.base import test_collection
+
+
+class LocalDeviceTestRun(test_run.TestRun):
+
+  def __init__(self, env, test_instance):
+    super(LocalDeviceTestRun, self).__init__(env, test_instance)
+    self._tools = {}
+
+  #override
+  def RunTests(self):
+    tests = self._GetTests()
+
+    def run_tests_on_device(dev, tests):
+      r = base_test_result.TestRunResults()
+      for test in tests:
+        result = self._RunTest(dev, test)
+        if isinstance(result, base_test_result.BaseTestResult):
+          r.AddResult(result)
+        elif isinstance(result, list):
+          r.AddResults(result)
+        else:
+          raise Exception('Unexpected result type: %s' % type(result).__name__)
+        if isinstance(tests, test_collection.TestCollection):
+          tests.test_completed()
+      return r
+
+    tries = 0
+    results = base_test_result.TestRunResults()
+    all_fail_results = {}
+    while tries < self._env.max_tries and tests:
+      logging.debug('try %d, will run %d tests:', tries, len(tests))
+      for t in tests:
+        logging.debug('  %s', t)
+
+      if self._ShouldShard():
+        tc = test_collection.TestCollection(self._CreateShards(tests))
+        try_results = self._env.parallel_devices.pMap(
+            run_tests_on_device, tc).pGet(None)
+      else:
+        try_results = self._env.parallel_devices.pMap(
+            run_tests_on_device, tests).pGet(None)
+      for try_result in try_results:
+        for result in try_result.GetAll():
+          if result.GetType() in (base_test_result.ResultType.PASS,
+                                  base_test_result.ResultType.SKIP):
+            results.AddResult(result)
+          else:
+            all_fail_results[result.GetName()] = result
+
+      results_names = set(r.GetName() for r in results.GetAll())
+      tests = [t for t in tests if self._GetTestName(t) not in results_names]
+      tries += 1
+
+    all_unknown_test_names = set(self._GetTestName(t) for t in tests)
+    all_failed_test_names = set(all_fail_results.iterkeys())
+
+    unknown_tests = all_unknown_test_names.difference(all_failed_test_names)
+    failed_tests = all_failed_test_names.intersection(all_unknown_test_names)
+
+    if unknown_tests:
+      results.AddResults(
+          base_test_result.BaseTestResult(
+              u, base_test_result.ResultType.UNKNOWN)
+          for u in unknown_tests)
+    if failed_tests:
+      results.AddResults(all_fail_results[f] for f in failed_tests)
+
+    return results
+
+  def GetTool(self, device):
+    if not str(device) in self._tools:
+      self._tools[str(device)] = valgrind_tools.CreateTool(
+          self._env.tool, device)
+    return self._tools[str(device)]
+
+  def _CreateShards(self, tests):
+    raise NotImplementedError
+
+  def _GetTestName(self, test):
+    return test
+
+  def _GetTests(self):
+    raise NotImplementedError
+
+  def _RunTest(self, device, test):
+    raise NotImplementedError
+
+  def _ShouldShard(self):
+    raise NotImplementedError