From c6129b4e85c596a93b0c253352d0bbdfcf04695d Mon Sep 17 00:00:00 2001
From: Todd Volkert <tvolkert@users.noreply.github.com>
Date: Thu, 23 May 2019 12:33:24 -0700
Subject: [PATCH] Add cast to prepare for package:file update (#33268)

---
 packages/flutter_tools/lib/src/devfs.dart | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/packages/flutter_tools/lib/src/devfs.dart b/packages/flutter_tools/lib/src/devfs.dart
index b040dc86e8f..bcc6e59effc 100644
--- a/packages/flutter_tools/lib/src/devfs.dart
+++ b/packages/flutter_tools/lib/src/devfs.dart
@@ -46,7 +46,7 @@ abstract class DevFSContent {
   Stream<List<int>> contentsAsStream();
 
   Stream<List<int>> contentsAsCompressedStream() {
-    return contentsAsStream().transform<List<int>>(gzip.encoder);
+    return contentsAsStream().cast<List<int>>().transform<List<int>>(gzip.encoder);
   }
 
   /// Return the list of files this content depends on.