From 172a120c6d993fc425ef0065898ba830780d73e2 Mon Sep 17 00:00:00 2001
From: Jason Simmons <jason-simmons@users.noreply.github.com>
Date: Wed, 1 Jun 2022 17:58:06 -0700
Subject: [PATCH] Check for a deleted snapshot delegate in ConvertImageToRaster
 (#33764)

---
 lib/ui/painting/image_encoding.cc | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/lib/ui/painting/image_encoding.cc b/lib/ui/painting/image_encoding.cc
index af9e5fe257afa..c8df75ebb68a8 100644
--- a/lib/ui/painting/image_encoding.cc
+++ b/lib/ui/painting/image_encoding.cc
@@ -104,6 +104,14 @@ void ConvertImageToRaster(
   raster_task_runner->PostTask([image, encode_task = std::move(encode_task),
                                 resource_context, snapshot_delegate,
                                 io_task_runner, is_gpu_disabled_sync_switch]() {
+    if (!snapshot_delegate) {
+      io_task_runner->PostTask(
+          [encode_task = std::move(encode_task)]() mutable {
+            encode_task(nullptr);
+          });
+      return;
+    }
+
     sk_sp<SkImage> raster_image =
         snapshot_delegate->ConvertToRasterImage(image);