From 77c1a6282321651f3dbbad6cd81616207ad6f0f8 Mon Sep 17 00:00:00 2001
From: Jason Simmons <jsimmons@google.com>
Date: Mon, 11 May 2020 18:23:04 -0700
Subject: [PATCH] [web] Represent CSS identity transforms as 'none' instead of
 null

This is required by Dart NNBD.
---
 lib/web_ui/lib/src/engine/util.dart | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/web_ui/lib/src/engine/util.dart b/lib/web_ui/lib/src/engine/util.dart
index 30771054efbc7..c410c8b2493f6 100644
--- a/lib/web_ui/lib/src/engine/util.dart
+++ b/lib/web_ui/lib/src/engine/util.dart
@@ -82,7 +82,7 @@ String float64ListToCssTransform(Float32List matrix) {
     return float64ListToCssTransform3d(matrix);
   } else {
     assert(transformKind == TransformKind.identity);
-    return null;
+    return 'none';
   }
 }