[telemetry] Sort imports in Telemetry and its dependents.

tools/perf/measurements/measurement_smoke_test.py

 # 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.
 """Measurement smoke test to make sure that no new action_name_to_run is
 defined."""
 
+import logging
+import optparse
 import os
-import optparse
-import logging
 import unittest
 
 from telemetry import benchmark as benchmark_module
 from telemetry.core import discover
 from telemetry.page import page_test
 from telemetry.unittest_util import options_for_unittests
 from telemetry.util import classes
 from telemetry.web_perf import timeline_based_measurement
 
 
@@ skipping 30 matching lines @@
     if not isinstance(pt, timeline_based_measurement.TimelineBasedMeasurement):
       page_test_instances.append(pt)
 
   return page_test_instances
 
 
 class MeasurementSmokeTest(unittest.TestCase):
   # Simple smoke test to make sure that all page_test are constructible.
   def testAllMeasurementInstance(self):
     _GetAllPossiblePageTestInstances()