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Unified Diff: third_party/WebKit/LayoutTests/web-animations-api/element-animate-no-style-recalc.html

Issue 1698913003: Avoid style recalc during element.animate() when unnecessary (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@_renameToSampledEffect
Patch Set: Added test case Created 4 years, 10 months ago
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Index: third_party/WebKit/LayoutTests/web-animations-api/element-animate-no-style-recalc.html
diff --git a/third_party/WebKit/LayoutTests/web-animations-api/element-animate-no-style-recalc.html b/third_party/WebKit/LayoutTests/web-animations-api/element-animate-no-style-recalc.html
new file mode 100644
index 0000000000000000000000000000000000000000..3cb3cd33e20bd9baf0b5beca3fe45777de7a8bbb
--- /dev/null
+++ b/third_party/WebKit/LayoutTests/web-animations-api/element-animate-no-style-recalc.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<script src="../resources/testharness.js"></script>
+<script src="../resources/testharnessreport.js"></script>
+<div id="container">
+ <div id="target"></div>
+</div>
+<script>
+test(() => {
+ internals.updateStyleAndReturnAffectedElementCount();
+ container.style.color = 'blue';
+ target.animate({color: 'blue'}, {fill: 'forwards'});
+ assert_greater_than(internals.updateStyleAndReturnAffectedElementCount(), 1);
+}, 'Calling element.animate() should not force a style recalc.');
+</script>
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