From f06b180434ecc7d2ee710003d2af60cd35844202 Mon Sep 17 00:00:00 2001
From: Jason Simmons <jsimmons@google.com>
Date: Wed, 22 Feb 2023 12:53:58 -0800
Subject: [PATCH] Fix a race in
 ShellTest.PushBackdropFilterToVisitedPlatformViews

Fixes https://github.com/flutter/flutter/issues/121096
---
 shell/common/shell_unittests.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/shell/common/shell_unittests.cc b/shell/common/shell_unittests.cc
index 2d767835b696b..476fd2828b593 100644
--- a/shell/common/shell_unittests.cc
+++ b/shell/common/shell_unittests.cc
@@ -850,7 +850,7 @@ TEST_F(ShellTest, PushBackdropFilterToVisitedPlatformViews) {
   ASSERT_FALSE(stack_50.is_empty());
 
   auto filter = DlBlurImageFilter(5, 5, DlTileMode::kClamp);
-  auto mutator = *external_view_embedder->GetStack(50).Begin();
+  auto mutator = *stack_50.Begin();
   ASSERT_EQ(mutator->GetType(), MutatorType::kBackdropFilter);
   ASSERT_EQ(mutator->GetFilterMutation().GetFilter(), filter);
   // Make sure the filterRect is in global coordinates (contains the (1,1)