Update reference to page_test module to use legacy_page_test module

content/test/gpu/gpu_tests/hardware_accelerated_feature.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.
 from gpu_tests import gpu_test_base
 import gpu_tests.hardware_accelerated_feature_expectations as hw_expectations
 
-from telemetry.page import page_test
+from telemetry.page import legacy_page_test
 from telemetry.story import story_set as story_set_module
 
 test_harness_script = r"""
   function VerifyHardwareAccelerated(feature) {
     feature += ': '
     var list = document.querySelector('.feature-status-list');
     for (var i=0; i < list.childElementCount; i++) {
       var span_list = list.children[i].getElementsByTagName('span');
       var feature_str = span_list[0].textContent;
       var value_str = span_list[1].textContent;
       if ((feature_str == feature) &&
           (value_str == 'Hardware accelerated')) {
         return true;
       }
     }
     return false;
   };
 """
 
 class HardwareAcceleratedFeatureValidator(gpu_test_base.ValidatorBase):
   def ValidateAndMeasurePage(self, page, tab, results):
     feature = page.feature
     if not tab.EvaluateJavaScript('VerifyHardwareAccelerated("%s")' % feature):
       print 'Test failed. Printing page contents:'
       print tab.EvaluateJavaScript('document.body.innerHTML')
-      raise page_test.Failure('%s not hardware accelerated' % feature)
+      raise legacy_page_test.Failure('%s not hardware accelerated' % feature)
 
 def safe_feature_name(feature):
   return feature.lower().replace(' ', '_')
 
 class ChromeGpuPage(gpu_test_base.PageBase):
   def __init__(self, story_set, feature, expectations):
     super(ChromeGpuPage, self).__init__(
       url='chrome://gpu', page_set=story_set, base_dir=story_set.base_dir,
       name=('HardwareAcceleratedFeature.%s_accelerated' %
             safe_feature_name(feature)),
@@ skipping 14 matching lines @@
 
   def CreateStorySet(self, options):
     features = ['WebGL', 'Canvas']
 
     ps = story_set_module.StorySet()
 
     for feature in features:
       ps.AddStory(ChromeGpuPage(story_set=ps, feature=feature,
                                 expectations=self.GetExpectations()))
     return ps