7fa21a4 [windows] Expose the binary messenger from FlutterEngine (flutter/engine#20399)

engine-flutter-autoroll · engine-flutter-autoroll · commit cd275fa097d5 · 2020-08-17T18:22:12.000Z
diff --git a/bin/internal/engine.version b/bin/internal/engine.version
@@ -1 +1 @@
-ddf253b4c37a14e7fa348cbc0687767db3c2e6e4
+7fa21a45a64b1a4a642c57bb81d7f3bd67cd5f5e
