[telemetry] Sort imports in Telemetry and its dependents.

tools/perf/measurements/smooth_gesture_util_unittest.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.
 import time
 import unittest
 
-from measurements import smooth_gesture_util as sg_util
-from telemetry import decorators
 from telemetry.core.platform import tracing_category_filter
 from telemetry.core.platform import tracing_options
+from telemetry import decorators
 from telemetry.page import page as page_module
 from telemetry.page import page_test
 from telemetry.timeline import async_slice
 from telemetry.timeline import model as model_module
 from telemetry.unittest_util import page_test_test_case
 from telemetry.web_perf import timeline_interaction_record as tir_module
 
+from measurements import smooth_gesture_util as sg_util
+
 
 class SmoothGestureUtilTest(unittest.TestCase):
   def testGetAdjustedInteractionIfContainGesture(self):
     model = model_module.TimelineModel()
     renderer_main = model.GetOrCreateProcess(1).GetOrCreateThread(2)
     renderer_main.name = 'CrRendererMain'
 
     #      [          X          ]                   [   Y  ]
     #      [  sub_async_slice_X  ]
     #          [   record_1]
@@ skipping 123 matching lines @@
     adjusted_smooth_gesture = (
       sg_util.GetAdjustedInteractionIfContainGesture(
         timeline_model, smooth_record))
     # Test that the scroll gesture starts at at least 500ms after the start of
     # the interaction record and ends at at least 500ms before the end of
     # interaction record.
     self.assertLessEqual(
       500, adjusted_smooth_gesture.start - smooth_record.start)
     self.assertLessEqual(
       500, smooth_record.end - adjusted_smooth_gesture.end)