From bd88b9118f1a87311a1992644a91f6ea6198d0c2 Mon Sep 17 00:00:00 2001
From: Brad Werth <bwerth@mozilla.com>
Date: Fri, 8 Sep 2023 15:14:45 +0000
Subject: [PATCH] Bug 1851861 Part 2: Add a null-check at another callsite of
 CreateOffsetDrawTarget. r=gfx-reviewers,lsalzman

Differential Revision: https://phabricator.services.mozilla.com/D187730
---
 gfx/2d/RecordedEventImpl.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gfx/2d/RecordedEventImpl.h b/gfx/2d/RecordedEventImpl.h
index fbbd82652c41..54a8ecd72d35 100644
--- a/gfx/2d/RecordedEventImpl.h
+++ b/gfx/2d/RecordedEventImpl.h
@@ -2132,6 +2132,9 @@ inline bool RecordedCreateDrawTargetForFilter::PlayEvent(
 
   RefPtr<DrawTarget> newDT =
       dt->CreateSimilarDrawTarget(transformedRect.Size(), mFormat);
+  if (!newDT) {
+    return false;
+  }
   newDT =
       gfx::Factory::CreateOffsetDrawTarget(newDT, transformedRect.TopLeft());