[telemetry] Sort imports in Telemetry and its dependents.

tools/telemetry/telemetry/value/list_of_scalar_values_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 os
 import unittest
 
 from telemetry import page as page_module
+from telemetry.page import page_set
 from telemetry import value
-from telemetry.page import page_set
 from telemetry.value import list_of_scalar_values
 from telemetry.value import none_values
 
 
 class TestBase(unittest.TestCase):
   def setUp(self):
     ps = page_set.PageSet(file_path=os.path.dirname(__file__))
     ps.AddUserStory(page_module.Page('http://www.bar.com/', ps, ps.base_dir))
     ps.AddUserStory(page_module.Page('http://www.baz.com/', ps, ps.base_dir))
     ps.AddUserStory(page_module.Page('http://www.foo.com/', ps, ps.base_dir))
@@ skipping 142 matching lines @@
       'name': 'x',
       'units': 'unit',
       'values': None,
       'none_value_reason': 'n'
     }
     v = value.Value.FromDict(d, {})
 
     self.assertTrue(isinstance(v, list_of_scalar_values.ListOfScalarValues))
     self.assertEquals(v.values, None)
     self.assertEquals(v.none_value_reason, 'n')