Update reference to page_test module to use legacy_page_test module

content/test/gpu/gpu_tests/maps.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.
 
 """Runs a Google Maps pixel test.
 Performs several common navigation actions on the map (pan, zoom, rotate) then
 captures a screenshot and compares selected pixels against expected values"""
 
 import json
 import os
 
 from gpu_tests import cloud_storage_test_base
 from gpu_tests import gpu_test_base
 from gpu_tests import maps_expectations
 from gpu_tests import path_util
 
 from telemetry.core import util
-from telemetry.page import page_test
+from telemetry.page import legacy_page_test
 from telemetry import story as story_module
 from telemetry.story import story_set as story_set_module
 
 
 class MapsValidator(cloud_storage_test_base.ValidatorBase):
   def __init__(self):
     super(MapsValidator, self).__init__()
 
   def CustomizeBrowserOptions(self, options):
     # --test-type=gpu is used only to suppress the "Google API Keys are missing"
     # infobar, which causes flakiness in tests.
     options.AppendExtraBrowserArgs(['--enable-gpu-benchmarking',
                                     '--test-type=gpu'])
 
   def ValidateAndMeasurePage(self, page, tab, results):
     # TODO: This should not be necessary, but it's not clear if the test is
     # failing on the bots in it's absence. Remove once we can verify that it's
     # safe to do so.
     MapsValidator.SpinWaitOnRAF(tab, 3)
 
     if not tab.screenshot_supported:
-      raise page_test.Failure('Browser does not support screenshot capture')
+      raise legacy_page_test.Failure(
+          'Browser does not support screenshot capture')
     screenshot = tab.Screenshot(5)
     if screenshot is None:
-      raise page_test.Failure('Could not capture screenshot')
+      raise legacy_page_test.Failure('Could not capture screenshot')
 
     dpr = tab.EvaluateJavaScript('window.devicePixelRatio')
     print 'Maps\' devicePixelRatio is ' + str(dpr)
     # Even though the Maps test uses a fixed devicePixelRatio so that
     # it fetches all of the map tiles at the same resolution, on two
     # different devices with the same devicePixelRatio (a Retina
     # MacBook Pro and a Nexus 9), different scale factors of the final
     # screenshot are observed. Hack around this by specifying a scale
     # factor for these bots in the test expectations. This relies on
     # the test-machine-name argument being specified on the command
@@ skipping 87 matching lines @@
 
   def CreateStorySet(self, options):
     story_set_path = os.path.join(
         path_util.GetChromiumSrcDir(), 'content', 'test', 'gpu', 'page_sets')
     ps = story_set_module.StorySet(
         archive_data_file='data/maps.json',
         base_dir=story_set_path,
         cloud_storage_bucket=story_module.PUBLIC_BUCKET)
     ps.AddStory(MapsPage(ps, ps.base_dir, self.GetExpectations()))
     return ps