| Index: third_party/WebKit/LayoutTests/fast/css/add-non-blocking-sheet-recalc.html
|
| diff --git a/third_party/WebKit/LayoutTests/fast/css/add-non-blocking-sheet-recalc.html b/third_party/WebKit/LayoutTests/fast/css/add-non-blocking-sheet-recalc.html
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..14fab58ea7a463b3fc7ab25e00602e058a451648
|
| --- /dev/null
|
| +++ b/third_party/WebKit/LayoutTests/fast/css/add-non-blocking-sheet-recalc.html
|
| @@ -0,0 +1,28 @@
|
| +<!DOCTYPE html>
|
| +<script src="../../resources/testharness.js"></script>
|
| +<script src="../../resources/testharnessreport.js"></script>
|
| +<link id="media-sheet" rel="stylesheet" media="(min-width: 5000px)">
|
| +<link id="alternate-sheet" rel="alternate stylesheet" title="alternate">
|
| +<script>
|
| + var test = async_test("Check that adding a non-blocking stylesheet does not cause a full document recalc.");
|
| +
|
| + window.onload = () => {
|
| + document.body.offsetTop;
|
| +
|
| + test.step(() => {
|
| + assert_true(!!window.internals, "Test requires internals object for recalc count.");
|
| + });
|
| +
|
| + test.step(() => {
|
| + document.querySelector("#media-sheet").href = "data:text/css,#x{color:pink}";
|
| + assert_equals(internals.updateStyleAndReturnAffectedElementCount(), 0, "No style recalc adding sheet without matching rules.");
|
| + });
|
| +
|
| + test.step(() => {
|
| + document.querySelector("#alternate-sheet").href = "data:text/css,*{color:pink}";
|
| + assert_equals(internals.updateStyleAndReturnAffectedElementCount(), 0, "No style recalc adding alternate sheet.");
|
| + });
|
| +
|
| + test.done();
|
| + };
|
| +</script>
|
|
|
Chromium Code Reviews
Issue 2278803002:
Use AnalyzedStyleUpdate for non-blocking sheets. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master