tools/perf/page_sets/system_health/blank_stories.py - Issue 2902513002: [System Health] Tidy up stories for Chrome's special pages

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Side by Side Diff: tools/perf/page_sets/system_health/blank_stories.py

Issue 2902513002: [System Health] Tidy up stories for Chrome's special pages (Closed)

Patch Set: Created 3 years, 7 months ago

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1 # Copyright 2016 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

5 from page_sets.system_health import system_health_story

6

7

8 class BlankAboutBlankStory(system_health_story.SystemHealthStory):

9 """Story that loads the about:blank page."""

10

11 NAME = 'blank:about:blank'

12 URL = 'about:blank'

13

14 def _DidLoadDocument(self, action_runner):

15 # Request a RAF and wait for it to be processed to ensure that the metric

16 # Startup.FirstWebContents.NonEmptyPaint2 is recorded.

17 action_runner.ExecuteJavaScript(

18 """

19 window.__hasRunRAF = false;

20 requestAnimationFrame(function() {

21 window.__hasRunRAF = true;

22 });

23 """

24 )

25 action_runner.WaitForJavaScriptCondition("window.__hasRunRAF")

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