Index: runtime/bin/output_stream.dart |
diff --git a/runtime/bin/output_stream.dart b/runtime/bin/output_stream.dart |
index e08454b02f20b9305c1f0baa5f994147d3e302ec..c20f271418bb990a9cfb65ba96917737639404b8 100644 |
--- a/runtime/bin/output_stream.dart |
+++ b/runtime/bin/output_stream.dart |
@@ -13,7 +13,7 @@ |
* writing in sync with the rate the system can actually write data to |
* the underlying communication channel. |
*/ |
-interface OutputStream { |
+abstract class OutputStream { |
/** |
* Writes the content of [buffer] to the stream. If [copyBuffer] is |
* false ownership of the specified buffer is passed to the system |