third_party/WebKit/LayoutTests/animations/transform-css-animation-squash-crash.html - Issue 2047283002: Avoid touching z-index in StyleAdjuster by using an isStackingContext flag instead

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Unified Diff: third_party/WebKit/LayoutTests/animations/transform-css-animation-squash-crash.html

Issue 2047283002: Avoid touching z-index in StyleAdjuster by using an isStackingContext flag instead (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: Update old z-index stacking context test Created 4 years, 6 months ago

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Index: third_party/WebKit/LayoutTests/animations/transform-css-animation-squash-crash.html

diff --git a/third_party/WebKit/LayoutTests/animations/transform-css-animation-squash-crash.html b/third_party/WebKit/LayoutTests/animations/transform-css-animation-squash-crash.html

new file mode 100644

index 0000000000000000000000000000000000000000..3eb7e23dde5cd343acbbfa09e077fc94af61873b

--- /dev/null

+++ b/third_party/WebKit/LayoutTests/animations/transform-css-animation-squash-crash.html

@@ -0,0 +1,24 @@

+<!DOCTYPE html>

+<script src="../resources/testharness.js"></script>

+<script src="../resources/testharnessreport.js"></script>

+<style>

+@keyframes test {

+ to { transform: rotate(360deg); }

+</style>

+<div id="target" style="animation: test 1s;">

+ <div style="transform: translateZ(0);"></div>

+ <div style="position: relative;"></div>

+</div>

+<script>

+test(() => {

+ if (!window.internals)

+ return;

+ // Force style recalc

+ getComputedStyle(target).zIndex;

+ assert_true(internals.isStackingContext(target));

+}, "Don't crash when squashing layers in newly started CSS transform animations.");

+</script>