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

build/android/enable_asserts.py

Index: build/android/enable_asserts.py
diff --git a/build/android/enable_asserts.py b/build/android/enable_asserts.py
new file mode 100755
index 0000000000000000000000000000000000000000..8fb7dca4725fe884af73115b0751d68d74f99940
--- /dev/null
+++ b/build/android/enable_asserts.py
@@ -0,0 +1,42 @@
+#!/usr/bin/env python
+#
+# 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.
+
+"""Enables dalvik vm asserts in the android device."""
+
+import argparse
+import sys
+
+from pylib.device import device_utils
+
+
+def main():
+  parser = argparse.ArgumentParser()
+
+  set_asserts_group = parser.add_mutually_exclusive_group(required=True)
+  set_asserts_group.add_argument(
+      '--enable_asserts', dest='set_asserts', action='store_true',
+      help='Sets the dalvik.vm.enableassertions property to "all"')
+  set_asserts_group.add_argument(
+      '--disable_asserts', dest='set_asserts', action='store_false',
+      help='Removes the dalvik.vm.enableassertions property')
+
+  args = parser.parse_args()
+
+  # TODO(jbudorick): Accept optional serial number and run only for the
+  # specified device when present.
+  devices = device_utils.DeviceUtils.parallel()
+
+  def set_java_asserts_and_restart(device):
+    if device.SetJavaAsserts(args.set_asserts):
+      device.RunShellCommand('stop')
+      device.RunShellCommand('start')
+
+  devices.pMap(set_java_asserts_and_restart)
+  return 0
+
+
+if __name__ == '__main__':
+  sys.exit(main())