| OLD | NEW |
|---|
| 1 <!doctype html> | 1 <!doctype html> |
| 2 <style> | 2 <style> |
| 3 div { | 3 div { |
| 4 color: orange; | 4 color: orange; |
| 5 } | 5 } |
| 6 </style> | 6 </style> |
| 7 <script src="../resources/runner.js"></script> | 7 <script src="../resources/runner.js"></script> |
| 8 <script> | 8 <script> |
| 9 var listSize = 100; | 9 var listSize = 100; |
| 10 window.onload = function() { | 10 window.onload = function() { |
| 11 PerfTestRunner.measureTime({ | 11 PerfTestRunner.measureTime({ |
| 12 description: "Measures performance of creating and rendering elements with
shadow roots from templates (contains class descendant selector styles).", | 12 description: "Measures performance of creating and rendering elements with
shadow roots from templates (contains class descendant selector styles).", |
| 13 run: function() { | 13 run: function() { |
| 14 var list = document.querySelector('#list'); | 14 var list = document.querySelector('#list'); |
| 15 var tmpl = document.querySelector("#tmpl"); | 15 var tmpl = document.querySelector("#tmpl"); |
| 16 list.innerHTML = ''; | 16 list.innerHTML = ''; |
| 17 var start = PerfTestRunner.now(); | 17 var start = PerfTestRunner.now(); |
| 18 var i = 0; | 18 var i = 0; |
| 19 do { | 19 do { |
| 20 var host = document.createElement('div'); | 20 var host = document.createElement('div'); |
| 21 var root = host.createShadowRoot(); | 21 var root = host.createShadowRoot(); |
| 22 root.appendChild(tmpl.content.cloneNode(true)); | 22 root.appendChild(tmpl.content.cloneNode(true)); |
| 23 var light = document.createElement('div'); | 23 var light = document.createElement('div'); |
| 24 list.appendChild(host); | 24 list.appendChild(host); |
| 25 } while (++i < listSize); | 25 } while (++i < listSize); |
| 26 | 26 |
| 27 PerfTestRunner.forceLayoutOrFullFrame(); | 27 PerfTestRunner.forceLayout(); |
| 28 return PerfTestRunner.now() - start; | 28 return PerfTestRunner.now() - start; |
| 29 } | 29 } |
| 30 }); | 30 }); |
| 31 } | 31 } |
| 32 </script> | 32 </script> |
| 33 <template id="tmpl"> | 33 <template id="tmpl"> |
| 34 <style> | 34 <style> |
| 35 .foo .bar .foo.bar.baz { | 35 .foo .bar .foo.bar.baz { |
| 36 color: blue; | 36 color: blue; |
| 37 } | 37 } |
| 38 .bar.baz { | 38 .bar.baz { |
| 39 color: red; | 39 color: red; |
| 40 } | 40 } |
| 41 </style> | 41 </style> |
| 42 <div class="foo"> | 42 <div class="foo"> |
| 43 <div class="bar"> | 43 <div class="bar"> |
| 44 <div class="foo bar baz">item</div> | 44 <div class="foo bar baz">item</div> |
| 45 </div> | 45 </div> |
| 46 </div> | 46 </div> |
| 47 <content></content> | 47 <content></content> |
| 48 </template> | 48 </template> |
| 49 <section id="list"></section> | 49 <section id="list"></section> |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 1557953002:
Revert unfinished work of "full-frame-measurement" (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@PerfPaint