| Index: sdk/lib/convert/html_escape.dart
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| diff --git a/sdk/lib/convert/html_escape.dart b/sdk/lib/convert/html_escape.dart
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| index 110c5df4059624acb6587f783996679c70c2a8a4..bcac2e3383cdec1af3a405b4dab1ab8501313fd6 100644
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| --- a/sdk/lib/convert/html_escape.dart
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| +++ b/sdk/lib/convert/html_escape.dart
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| @@ -151,8 +151,7 @@ class HtmlEscapeMode {
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|   * found to be easier to read if greater-than is also escaped whenever
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|   * less-than is.
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|   */
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| -class HtmlEscape extends Converter<String, String>
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| -    implements ChunkedConverter<String, String, String, String> {
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| +class HtmlEscape extends Converter<String, String> {
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|    /** The [HtmlEscapeMode] used by the converter. */
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|    final HtmlEscapeMode mode;
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|  
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| 
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