Add writeString method to OutputStream

runtime/bin/http.dart

Index: runtime/bin/http.dart
diff --git a/runtime/bin/http.dart b/runtime/bin/http.dart
index 8a5097acceaf9c74db8da4be6934dd3378a029d5..24f76cb88d11ea5f8f37006b63e956064fd89627 100644
--- a/runtime/bin/http.dart
+++ b/runtime/bin/http.dart
@@ -204,14 +204,6 @@ interface HttpResponse default _HttpResponse {
    * having retrieved the output stream will throw an exception.
    */
   OutputStream get outputStream();
-
-  /**
-   * Write string data to the response. The string characters will be
-   * encoded using UFT-8. This is a temporary convenience method as
-   * long as the OutputStream interface does not have a writeString
-   * method.
-   */
-  bool writeString(String string);
 }
 
 
@@ -335,14 +327,6 @@ interface HttpClientRequest default _HttpClientRequest {
    * having retrieved the output stream will throw an exception.
    */
   OutputStream get outputStream();
-
-  /**
-   * Write string data to the request. The string characters will be
-   * encoded using UFT-8. This is a temporary convenience method as
-   * long as the OutputStream interface does not have a writeString
-   * method.
-   */
-  bool writeString(String string);
 }