| 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 = 1000; |
| 10 window.onload = function() { | 10 window.onload = function() { |
| 11 PerfTestRunner.measureTime({ | 11 PerfTestRunner.measureTime({ |
| 12 run: function() { | 12 run: function() { |
| 13 var list = document.querySelector('#list'); | 13 var list = document.querySelector('#list'); |
| 14 var tmpl = document.querySelector("#tmpl"); | 14 var tmpl = document.querySelector("#tmpl"); |
| 15 list.innerHTML = ''; | 15 list.innerHTML = ''; |
| 16 var start = PerfTestRunner.now(); | 16 var start = PerfTestRunner.now(); |
| 17 var i = 0; | 17 var i = 0; |
| 18 do { | 18 do { |
| 19 var host = document.createElement('div'); | 19 var host = document.createElement('div'); |
| 20 var root = host.createShadowRoot(); | 20 var root = host.createShadowRoot(); |
| 21 root.appendChild(tmpl.content.cloneNode(true)); | 21 root.appendChild(tmpl.content.cloneNode(true)); |
| 22 var light = document.createElement('div'); | 22 var light = document.createElement('div'); |
| 23 list.appendChild(host); | 23 list.appendChild(host); |
| 24 } while (++i < listSize); | 24 } while (++i < listSize); |
| 25 | 25 |
| 26 document.body.offsetHeight; | 26 document.body.offsetHeight; |
| 27 return PerfTestRunner.now() - start; | 27 return PerfTestRunner.now() - start; |
| 28 } | 28 } |
| 29 }); | 29 }); |
| 30 } | 30 } |
| 31 </script> | 31 </script> |
| 32 <template id="tmpl"> | 32 <template id="tmpl"> |
| 33 <!-- None of these styles match, but that's on purpose --> |
| 33 <style> | 34 <style> |
| 34 .foo .bar .foo.bar.baz { | 35 [foo] { |
| 35 color: blue; | 36 color: blue; |
| 36 } | 37 } |
| 37 .bar.baz { | 38 [bar] { |
| 38 color: red; | 39 color: red; |
| 39 } | 40 } |
| 41 [baz] { |
| 42 color: green; |
| 43 } |
| 40 </style> | 44 </style> |
| 41 <div class="foo"> | 45 <div> |
| 42 <div class="bar"> | 46 <div> |
| 43 <div class="foo bar baz">item</div> | 47 <div>item</div> |
| 44 </div> | 48 </div> |
| 45 </div> | 49 </div> |
| 46 <content></content> | 50 <content></content> |
| 47 </template> | 51 </template> |
| 48 <section id="list"></section> | 52 <section id="list"></section> |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 195903002:
Only process each StyleSheetContents once when collecting features during style resolution (Closed)
Base URL: svn://svn.chromium.org/blink/trunk