Revert of ts_mon: remove dependency on apiclient.

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 imp
 import os
 import sys
 
+# Adds itself to sys.path so the packages inside work.
+from . import third_party
+
 # Add the gae_ts_mon/protobuf directory into the path for the google package, so
 # "import google.protobuf" works.
 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)
 
 # Pretend that we are the infra_libs.ts_mon package, so users can use the same
 # import lines in gae and non-gae code.
 try:
   import infra_libs
@@ skipping 37 matching lines @@
 from infra_libs.ts_mon.common.metrics import CumulativeDistributionMetric
 from infra_libs.ts_mon.common.metrics import CumulativeMetric
 from infra_libs.ts_mon.common.metrics import DistributionMetric
 from infra_libs.ts_mon.common.metrics import FloatMetric
 from infra_libs.ts_mon.common.metrics import GaugeMetric
 from infra_libs.ts_mon.common.metrics import NonCumulativeDistributionMetric
 from infra_libs.ts_mon.common.metrics import StringMetric
 
 from infra_libs.ts_mon.common.targets import TaskTarget
 from infra_libs.ts_mon.common.targets import DeviceTarget