[CompositeClipPathAnimations] Make paint rect encompass entire animation

Previously, the paint rect for a composited clip path animation would be based on the size of the clip path at paint time, which meant that a clip path animation progressing from a smaller to larger keyframe would be clipped unnecessarily. This change decides the clip area based on the union of all keyframes, resulting in a rect that encompasses the entire animation. Fuzzy diff is added for one test because of rendering code path differences causing a very small diff. See discussion on crbug.com/1249071 for why this is preferred. Bug: 1248610, 1372489 Change-Id: Ic9f5658166cbe5698b3486fc6f97fc8a4405850c Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3928467 Commit-Queue: Claire Chambers <clchambers@microsoft.com> Reviewed-by: Robert Flack <flackr@chromium.org> Reviewed-by: Olga Gerchikov <gerchiko@microsoft.com> Cr-Commit-Position: refs/heads/main@{#1059057}
web-platform-tests · Oct 14, 2022 · 2ee2935 · 2ee2935
1 parent cad591f
commit 2ee2935
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/css/css-masking/clip-path/animations/clip-path-animation-fixed-position.html b/css/css-masking/clip-path/animations/clip-path-animation-fixed-position.html
@@ -1,5 +1,6 @@
 <!DOCTYPE html>
 <html class="reftest-wait">
+<meta name=fuzzy content="0-10;0-150">
 <link rel="help" href="https://drafts.csswg.org/css-shapes-1/#basic-shape-interpolation">
 <link rel="match" href="clip-path-animation-fixed-position-ref.html">
 <!--