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| 1 # Copyright 2014 The Chromium Authors. All rights reserved. |  | 
| 2 # Use of this source code is governed by a BSD-style license that can be |  | 
| 3 # found in the LICENSE file. |  | 
| 4 from telemetry.page import page as page_module |  | 
| 5 from telemetry import story |  | 
| 6 |  | 
| 7 |  | 
| 8 class ToughLayerCasesPage(page_module.Page): |  | 
| 9 |  | 
| 10   def __init__(self, url, page_set): |  | 
| 11     super(ToughLayerCasesPage, self).__init__(url=url, page_set=page_set) |  | 
| 12 |  | 
| 13 |  | 
| 14 class ToughLayerCasesPageSet(story.StorySet): |  | 
| 15 |  | 
| 16   """ A collection of tests to measure layer performance. """ |  | 
| 17 |  | 
| 18   def __init__(self): |  | 
| 19     super(ToughLayerCasesPageSet, self).__init__() |  | 
| 20 |  | 
| 21     self.AddStory(ToughLayerCasesPage( |  | 
| 22       'file://layer_stress_tests/opacity.html', self)) |  | 
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