Fix under-invalidation on removal of the document element

Bug: 1219300 Change-Id: I7527a630ac9482325016627097db2209e91d9970 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2959607 Reviewed-by: Stephen Chenney <schenney@chromium.org> Commit-Queue: Xianzhu Wang <wangxianzhu@chromium.org> Cr-Commit-Position: refs/heads/master@{#892366}
web-platform-tests · Jun 15, 2021 · 7d36272 · 7d36272
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diff --git a/css/css-backgrounds/document-canvas-remove-body-ref.html b/css/css-backgrounds/document-canvas-remove-body-ref.html
@@ -0,0 +1,2 @@
+<!DOCTYPE html>
+<!-- intentionally empty -->
diff --git a/css/css-backgrounds/document-canvas-remove-body.html b/css/css-backgrounds/document-canvas-remove-body.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html class="reftest-wait">
+<script src="/common/reftest-wait.js"></script>
+<script src="/common/rendering-utils.js"></script>
+<link rel="help" href="https://www.w3.org/TR/css-backgrounds-3/#body-background">
+<link rel="match" href="document-canvas-remove-body-ref.html">
+<body style="background: red"></body>
+<script>
+waitForAtLeastOneFrame().then(() => {
+  document.body.remove();
+  takeScreenshot();
+});
+</script>
+</html>