Register PaintLayer as client on backdrop-filter

A PaintLayer with a backdrop-filter applied wasn't added as a client to the filter. This meant that it wouldn't get any notifications when the contents of a filter was mutated. Add client registration/unregistration to PaintLayer (UpdateBackdropFilters and Destroy). Bug: 359102842 Change-Id: Id664e680acb47860a931dc4b1b91142a19521950 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5824402 Commit-Queue: Philip Rogers <[email protected]> Auto-Submit: Fredrik Söderquist <[email protected]> Reviewed-by: Philip Rogers <[email protected]> Cr-Commit-Position: refs/heads/main@{#1348693}
web-platform-tests · Aug 29, 2024 · 1dd1793 · 1dd1793
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commit 1dd1793
Showing 1 changed file with 22 additions and 0 deletions.
diff --git a/css/filter-effects/backdrop-filter-reference-filter-mutated.html b/css/filter-effects/backdrop-filter-reference-filter-mutated.html
@@ -0,0 +1,22 @@
+<!doctype html>
+<html class="reftest-wait">
+<title>backdrop-filter: A reference filter is mutated</title>
+<link rel="help" href="https://drafts.fxtf.org/filter-effects-2/#BackdropFilterProperty">
+<link rel="match" href="reference/green-100x100.html">
+<script src="/common/reftest-wait.js"></script>
+<script src="/common/rendering-utils.js"></script>
+<div style="width: 100px; height: 100px; backdrop-filter: url(#f)"></div>
+<svg height="0">
+  <defs>
+    <filter id="f">
+      <feFlood id="flood" flood-color="red"/>
+    </filter>
+  </defs>
+</svg>
+<script>
+  waitForAtLeastOneFrame().then(() => {
+    const flood = document.getElementById('flood');
+    flood.setAttribute('flood-color', 'green');
+    takeScreenshot();
+  });
+</script>