[telemetry] Sort imports in Telemetry and its dependents.

tools/perf/measurements/rasterize_and_record_micro_unittest.py

 # Copyright 2013 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 logging
 
-from measurements import rasterize_and_record_micro
+from telemetry.core import wpr_modes
 from telemetry import decorators
-from telemetry.core import wpr_modes
 from telemetry.page import page_test
 from telemetry.unittest_util import options_for_unittests
 from telemetry.unittest_util import page_test_test_case
 
+from measurements import rasterize_and_record_micro
+
 
 class RasterizeAndRecordMicroUnitTest(page_test_test_case.PageTestTestCase):
   """Smoke test for rasterize_and_record_micro measurement
 
      Runs rasterize_and_record_micro measurement on a simple page and verifies
      that all metrics were added to the results. The test is purely functional,
      i.e. it only checks if the metrics are present and non-zero.
   """
 
   def setUp(self):
@@ skipping 71 matching lines @@
     self.assertEquals(len(viewport_picture_size), 1)
     self.assertGreater(
         viewport_picture_size[0].GetRepresentativeNumber(), 0)
 
     total_size_of_pictures_in_piles = \
         results.FindAllPageSpecificValuesNamed(
             'total_size_of_pictures_in_piles')
     self.assertEquals(len(total_size_of_pictures_in_piles), 1)
     self.assertGreater(
         total_size_of_pictures_in_piles[0].GetRepresentativeNumber(), 0)