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

build/android/pylib/utils/run_tests_helper.py

Index: build/android/pylib/utils/run_tests_helper.py
diff --git a/build/android/pylib/utils/run_tests_helper.py b/build/android/pylib/utils/run_tests_helper.py
new file mode 100644
index 0000000000000000000000000000000000000000..43f654ddcffb61750991cdedb6169defba5499bb
--- /dev/null
+++ b/build/android/pylib/utils/run_tests_helper.py
@@ -0,0 +1,44 @@
+# 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.
+
+"""Helper functions common to native, java and host-driven test runners."""
+
+import logging
+import sys
+import time
+
+
+class CustomFormatter(logging.Formatter):
+  """Custom log formatter."""
+
+  #override
+  def __init__(self, fmt='%(threadName)-4s  %(message)s'):
+    # Can't use super() because in older Python versions logging.Formatter does
+    # not inherit from object.
+    logging.Formatter.__init__(self, fmt=fmt)
+    self._creation_time = time.time()
+
+  #override
+  def format(self, record):
+    # Can't use super() because in older Python versions logging.Formatter does
+    # not inherit from object.
+    msg = logging.Formatter.format(self, record)
+    if 'MainThread' in msg[:19]:
+      msg = msg.replace('MainThread', 'Main', 1)
+    timediff = time.time() - self._creation_time
+    return '%s %8.3fs %s' % (record.levelname[0], timediff, msg)
+
+
+def SetLogLevel(verbose_count):
+  """Sets log level as |verbose_count|."""
+  log_level = logging.WARNING  # Default.
+  if verbose_count == 1:
+    log_level = logging.INFO
+  elif verbose_count >= 2:
+    log_level = logging.DEBUG
+  logger = logging.getLogger()
+  logger.setLevel(log_level)
+  custom_handler = logging.StreamHandler(sys.stdout)
+  custom_handler.setFormatter(CustomFormatter())
+  logging.getLogger().addHandler(custom_handler)