make version of ts_mon compatible with appengine

appengine_module/gae_ts_mon/__init__.py

+# Copyright 2015 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 google  # provided by GAE
+import os
+import sys
+protobuf_dir = os.path.join(os.path.dirname(__file__), 'protobuf')
+google.__path__.append(os.path.join(protobuf_dir, 'google'))
+sys.path.insert(0, protobuf_dir)
+
+from interface import send
+from interface import flush
+
+from monitoring import access_count
+from monitoring import request_bytes
+from monitoring import response_bytes
+from monitoring import durations
+from monitoring import response_status
+
+from common.errors import MonitoringError
+from common.errors import MonitoringDuplicateRegistrationError
+
+from common.metrics import BooleanMetric
+from common.metrics import CounterMetric
+from common.metrics import CumulativeMetric
+from common.metrics import DistributionMetric
+from common.metrics import FloatMetric
+from common.metrics import GaugeMetric
+from common.metrics import StringMetric
+
+from common.targets import TaskTarget