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| (Empty) | |
| 1 <!doctype html> |
| 2 <html> |
| 3 <head> |
| 4 <script src="../resources/runner.js"></script> |
| 5 </head> |
| 6 <body><iframe></iframe> |
| 7 </body> |
| 8 <script> |
| 9 function setup() { |
| 10 var frame = document.getElementsByTagName("iframe")[0]; |
| 11 var testDoc = frame.contentDocument; |
| 12 testDoc.body.innerHTML = "<head></head><body><div id='sandbox'></div></body>
"; |
| 13 return testDoc; |
| 14 } |
| 15 |
| 16 PerfTestRunner.measureTime({run:function() { |
| 17 var testDoc = setup(); |
| 18 var start = PerfTestRunner.now(); |
| 19 var sandbox = testDoc.getElementById('sandbox'); |
| 20 var templateA = testDoc.getElementById('templateA'); |
| 21 var templateB = testDoc.getElementById('templateB'); |
| 22 for (var i = 0; i < 100; i++) { |
| 23 var elementA = testDoc.createElement("div"); |
| 24 var shadowRootForA = elementA.createShadowRoot(); |
| 25 shadowRootForA.innerHTML = "<style>@host{:scope{display:block}}ul.canary
isdev li:nth-of-type(4)::after{content:'canary/dev'}ul.canaryisdev li:nth-of-typ
e(5)::after{content:'beta'}ul.canaryisdev li:nth-of-type(6)::after{content:'stab
le'}ul.canaryisdev li:nth-of-type(7)::after{content:''}ul.betaisdev li:nth-of-ty
pe(4)::after{content:'canary'}ul.betaisdev li:nth-of-type(5)::after{content:'dev
/beta'}ul.betaisdev li:nth-of-type(6)::after{content:'stable'}ul.betaisdev li:nt
h-of-type(7)::after{content:''}ul li{cursor:pointer;padding:3px 0}ul li::before{
-webkit-transition:all 500ms ease;-moz-transition:all 500ms ease;-o-transition:a
ll 500ms ease;transition:all 500ms ease;content:'';margin-right:5px;border-left:
3px solid transparent}ul li::after{font-size:75%;margin-left:10px}ul li:first-of
-type,ul li:nth-of-type(2),ul li:nth-of-type(3){font-size:75%;font-style:italic}
ul li:nth-of-type(3){border-bottom:1px solid #d4d4d4;padding-bottom:10px;margin-
bottom:5px}ul li:nth-of-type(4)::after{content:'canary'}ul li:nth-of-type(5)::af
ter{content:'dev'}ul li:nth-of-type(6)::after{content:'beta'}ul li:nth-of-type(7
)::after{content:'stable'}ul li[selected]{font-weight:600;color:#366597}ul li[se
lected]::before{border-color:#366597}</style><div>A</div>"; |
| 26 sandbox.appendChild(elementA); |
| 27 |
| 28 var elementB = testDoc.createElement("div"); |
| 29 var shadowRootForB = elementB.createShadowRoot(); |
| 30 shadowRootForB.innerHTML = "<style>@host{:scope{display:block;padding:1p
x}}.milestone-marker{text-align:right;text-transform:uppercase;margin-top:10px;f
ont-weight:600;font-size:14px;color:#366597}@media only screen and (max-width: 7
00px){[data-first-of-milestone]:after{font-size:12px;font-weight:normal;top:-22p
x;opacity:1;text-transform:uppercase}}</style><div>B</div>"; |
| 31 sandbox.appendChild(elementB); |
| 32 } |
| 33 return PerfTestRunner.now() - start; |
| 34 }}); |
| 35 </script> |
| 36 </html> |
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Chromium Code Reviews
Issue 28553005:
Avoid parsing css text if there are identical inline style blocks. (Closed)
Base URL: svn://svn.chromium.org/blink/trunk