| Index: sdk/lib/io/data_transformer.dart
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| diff --git a/sdk/lib/io/data_transformer.dart b/sdk/lib/io/data_transformer.dart
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| index 0c922366576ff475820d86550844d04abb9df84c..84a43683c31caf735eea8fb9061f3c9e5c8ce195 100644
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| --- a/sdk/lib/io/data_transformer.dart
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| +++ b/sdk/lib/io/data_transformer.dart
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| @@ -292,8 +292,7 @@ class GZipCodec extends Codec<List<int>, List<int>> {
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|   * The [ZLibEncoder] encoder is used by [ZLibCodec] and [GZipCodec] to compress
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|   * data.
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|   */
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| -class ZLibEncoder extends Converter<List<int>, List<int>>
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| -    implements ChunkedConverter<List<int>, List<int>, List<int>, List<int>> {
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| +class ZLibEncoder extends Converter<List<int>, List<int>> {
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|    /**
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|     * When true, `GZip` frames will be added to the compressed data.
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|     */
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| 
 |