Fix Null Dereference in css_parsing_utils

This CL addresses a null pointer dereference issue within the ConsumeColorContrast functions located in css_parsing_utils.cc. Previously, a null dereference occurred when the code attempted to retrieve the color provider when the document was null. To resolve this, the updated code now includes a validation check to ensure the document object is valid before calling the GetColorProviderForPainting method. Bug: 337069153 Change-Id: Ieee6c0e3602b25e8b149c93643e4d55265e4467c Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5497219 Reviewed-by: Alison Maher <almaher@microsoft.com> Commit-Queue: Sam Davis Omekara <samomekarajr@microsoft.com> Cr-Commit-Position: refs/heads/main@{#1304551}
web-platform-tests · May 22, 2024 · 3eb175f · 3eb175f
1 parent da2dc27
commit 3eb175f
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/css/css-properties-values-api/crashtests/consume-color-contrast-crash.html b/css/css-properties-values-api/crashtests/consume-color-contrast-crash.html
@@ -0,0 +1,6 @@
+<!DOCTYPE html>
+<link rel="help" href="https://crbug.com/337069153">
+<script>
+  var element = document.createElementNS("http://www.w3.org/2000/svg", undefined);
+  element.style.setProperty('background-color', unescape("color-contrast(red vs deeppink, #008000)"));
+</script>